BYD Company Limited

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New (last 4 weeks) 44
2024 April (MTD) 21
2024 March 28
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2024 January 40
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IPC Class
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries 69
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries 46
B60L 11/18 - using power supplied from primary cells, secondary cells, or fuel cells 44
H01M 10/625 - Vehicles 43
B60W 10/08 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators 36
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Pending 343
Registered / In Force 639
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1.

BATTERY PACK, VEHICLE, AND ENERGY STORAGE DEVICE

      
Application Number 18398950
Status Pending
Filing Date 2023-12-28
First Publication Date 2024-04-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • He, Long
  • Sun, Huajun
  • Jiang, Wenfeng
  • Lu, Zhipei
  • Zheng, Weixin
  • Tang, Jianglong
  • Zhu, Yan
  • Wang, Xinyue
  • He, Kefeng

Abstract

A battery pack, a vehicle, and an energy storage device are provided. The battery pack includes a cell array and a support member, where the cell array includes a plurality of cells, the cell has a first dimension, and the first dimension is a maximum spacing between two imaginary parallel planes sandwiching the cell; and at least one of the cells 600 mm≤first dimension≤2500 mm the at least one cell includes a casing and a core located inside the casing, a supporting region is formed on the casing, and the cell is connected to the support member through the supporting region and is supported by the support member. The support member is connected to the supporting region to support the cell.

IPC Classes  ?

  • H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
  • B60K 1/04 - Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
  • B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
  • B60L 50/64 - Constructional details of batteries specially adapted for electric vehicles
  • H01M 10/052 - Li-accumulators
  • H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
  • H01M 10/613 - Cooling or keeping cold
  • H01M 10/625 - Vehicles
  • H01M 10/647 - Prismatic or flat cells, e.g. pouch cells
  • H01M 10/6551 - Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
  • H01M 10/6554 - Rods or plates
  • H01M 50/103 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
  • H01M 50/119 - Metals
  • H01M 50/244 - Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
  • H01M 50/249 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
  • H01M 50/271 - Lids or covers for the racks or secondary casings
  • H01M 50/317 - Re-sealable arrangements
  • H01M 50/342 - Non-re-sealable arrangements
  • H01M 50/35 - Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
  • H01M 50/383 - Flame arresting or ignition-preventing means
  • H01M 50/531 - Electrode connections inside a battery casing
  • H01M 50/543 - Terminals

2.

BATTERY PACK, VEHICLE BODY, AND VEHICLE

      
Application Number 18535859
Status Pending
Filing Date 2023-12-11
First Publication Date 2024-04-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Yi, Bengang
  • Yan, Junfei
  • Diao, Yiwei
  • Lian, Yubo
  • Ling, Heping

Abstract

A battery pack includes a battery core; a cover plate, the battery core connected with the cover plate; a side frame, the cover plate connected with the side frame; and a cooling plate connected with the side frame, where the battery core is disposed in an accommodating space formed among the cover plate, the cooling plate, and the side frame. A vehicle body includes a vehicle body frame having a notch, and the battery pack. The side frame of the battery pack is connected with the vehicle body frame, and the cover plate of the battery pack seals the notch as a vehicle body floor.

IPC Classes  ?

  • B60K 1/04 - Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
  • B60L 50/64 - Constructional details of batteries specially adapted for electric vehicles
  • B62D 25/02 - Side panels
  • B62D 25/20 - Floors or bottom sub-units
  • H01M 10/613 - Cooling or keeping cold
  • H01M 10/625 - Vehicles
  • H01M 10/653 - Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
  • H01M 10/6554 - Rods or plates
  • H01M 10/6556 - Solid parts with flow channel passages or pipes for heat exchange
  • H01M 50/204 - Racks, modules or packs for multiple batteries or multiple cells
  • H01M 50/249 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
  • H01M 50/264 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
  • H01M 50/271 - Lids or covers for the racks or secondary casings

3.

BATTERY CASING

      
Application Number 18392593
Status Pending
Filing Date 2023-12-21
First Publication Date 2024-04-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Liang, Liwei
  • Hu, Shumin
  • Chen, Yuanyuan
  • Zhang, Jian
  • Ouyang, Jinzhong

Abstract

a first, a second, a third, and a fourth side plates of a battery casing are connected in sequence. The first and the third side plates are arranged opposite to each other, and the first side plate is shorter than the third side plate. The second and the fourth side plates are arranged opposite to each other, and the fourth side plate is shorter than the second side plate. A connecting plate adapted to mount a tab of a battery is provided between the first and the fourth side plates and connected to the first and the fourth side plates, and the connecting plate is shorter than the second and the third side plates. The first, the second, the third, and the fourth side plates and the connecting plate are located at the same side of a support plate, and work with the support plate to define an accommodating cavity.

IPC Classes  ?

  • H01M 50/103 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
  • H01M 50/15 - Lids or covers characterised by their shape for prismatic or rectangular cells

4.

CHARGING AND SWAPPING SYSTEM WITH DETACHABLE BATTERY PACK

      
Application Number 18398647
Status Pending
Filing Date 2023-12-28
First Publication Date 2024-04-18
Owner BYD COMPANY LIMITED (China)
Inventor Guo, Shu

Abstract

A charging and swapping system for a detachable battery pack includes a battery pack and a support plate. The battery pack includes a housing and a battery cell disposed in the housing. The support plate is connected with the battery pack through a detachable connection. The support plate is disconnected from the battery pack when the battery pack is to be replaced on a vehicle or when charging of the battery pack at a charging station is completed.

IPC Classes  ?

  • B60L 53/80 - Exchanging energy storage elements, e.g. removable batteries

5.

BATTERY ASSEMBLY, BATTERY PACK, AND VEHICLE

      
Application Number 18532624
Status Pending
Filing Date 2023-12-07
First Publication Date 2024-04-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Shu, Yuanmao
  • Wu, Yanfeng
  • Zheng, Weixin
  • Lu, Zhipei
  • Sun, Huajun

Abstract

A battery assembly, a battery pack and a vehicle are provided. The battery assembly includes: multiple cells; a connecting member, where the cells is electrically connected to each other through the connecting member; and a thermally conductive member, where the cell has a housing, the thermally conductive member is provided between the connecting member and the housing, and the thermally conductive member is thermally conductively connected to the connecting member and the housing.

IPC Classes  ?

  • H01M 10/613 - Cooling or keeping cold
  • H01M 10/625 - Vehicles
  • H01M 10/653 - Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
  • H01M 10/6556 - Solid parts with flow channel passages or pipes for heat exchange
  • H01M 50/30 - Arrangements for facilitating escape of gases

6.

METHOD FOR EQUALIZING BATTERY CAPACITIES OF VEHICLE, ELECTRONIC DEVICE, AND VEHICLE

      
Application Number 18531164
Status Pending
Filing Date 2023-12-06
First Publication Date 2024-04-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Liu, Saiwu
  • Cheng, Zhihua
  • Yang, Lina
  • Chen, Yanjun

Abstract

A method for equalizing battery capacities of a vehicle includes: determining, based on a current capacity of a battery of each of carriages, a largest battery capacity and a corresponding first carriage thereof, and a smallest battery capacity and a corresponding second carriage thereof; determining, based on the largest battery capacity and the smallest battery capacity, a first traction force and a second traction force, where the first traction force is greater than the second traction force; and outputting a first control command including the first traction force to the first carriage, and outputting a second control command including the second traction force to the second carriage for equalizing battery capacities of the carriages of the vehicle.

IPC Classes  ?

  • B60L 58/22 - Balancing the charge of battery modules
  • B60L 58/12 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
  • B60L 58/21 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal voltage

7.

ELECTRODE PLATE, ELECTROCHEMICAL DEVICE, AND BOTTOM COATING DEVICE

      
Application Number 18394414
Status Pending
Filing Date 2023-12-22
First Publication Date 2024-04-18
Owner BYD COMPANY LIMITED (China)
Inventor Chen, Binbin

Abstract

An electrode plate includes a current collector, an active material layer, and a conductive layer. The conductive layer is arranged between the current collector and the active material layer. The conductive layer is having an indentation. The indentation is formed to be recessed from one side of the conductive layer in contact with the active material layer toward another side of the conductive layer in contact with the current collector.

IPC Classes  ?

8.

HANGING LUG, SERVER AND SERVER SYSTEM

      
Application Number 18537493
Status Pending
Filing Date 2023-12-12
First Publication Date 2024-04-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Yu, Zhitao
  • Huang, Junjie

Abstract

A hanging lug, a server, and a server system are provided. The hanging lug includes a base, a fastener, a buckle assembly, and an elastic assembly. The fastener is connected to the base. The buckle assembly is rotatably connected to the base, to switch between a first position and a second position. When the buckle assembly is located at the first position, the buckle assembly blocks the fastener. When the buckle assembly is located at the second position, the buckle assembly releases blocking on the fastener. The elastic assembly is connected between the buckle assembly and the base, and in response to a pressing operation acting on the buckle assembly, the elastic assembly drives the buckle assembly to rotate from the first position to the second position, and remains at the second position.

IPC Classes  ?

  • H05K 5/02 - Casings, cabinets or drawers for electric apparatus - Details
  • G06F 1/18 - Packaging or power distribution

9.

SELF-HEATING CONTROL METHOD AND SELF-HEATING CONTROL SYSTEM OF CHARGING AND DISCHARGING BATTERY

      
Application Number 18532313
Status Pending
Filing Date 2023-12-07
First Publication Date 2024-04-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Zhang, Ke
  • Chen, Na
  • Li, Jiannian
  • Pan, Yi
  • Guo, Zizhu

Abstract

A self-heating control method and a self-heating control system for a rechargeable battery are disclosed. The rechargeable battery includes a battery core. A separator is provided between a positive electrode and a negative electrode of the battery core. A reference electrode is correspondingly provided at the separator. A surface electrode is correspondingly provided on the negative electrode surface of the battery core. The method includes: detecting the potential difference between the reference electrode and the surface electrode, generating a charging current adjustment instruction according to the potential difference between the reference electrode and the surface electrode, and adjusting the charging current of the rechargeable battery according to the charging current adjustment instruction during the self-heating process of the rechargeable battery.

IPC Classes  ?

  • H01M 10/63 - Control systems
  • H01M 10/615 - Heating or keeping warm
  • H01M 10/625 - Vehicles
  • H01M 10/659 - Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
  • H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

10.

METHOD FOR PREPARING LITHIUM IRON PHOSPHATE POSITIVE ELECTRODE MATERIAL, POSITIVE ELECTRODE POLE PIECE AND LITHIUM ION BATTERY

      
Application Number 18399192
Status Pending
Filing Date 2023-12-28
First Publication Date 2024-04-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Du, Mengyi
  • Chen, Sanzhi
  • Hao, Rong

Abstract

A method for preparing a lithium iron phosphate positive electrode material includes: sequentially grinding, spray-drying and sintering a first mixture slurry containing iron phosphate, a lithium source, a carbon source and a solvent to obtain a spherical first lithium iron phosphate material; sequentially grinding, spray-drying, sintering and crushing a second mixture slurry containing iron phosphate, a lithium source, a carbon source and a solvent to obtain a second lithium iron phosphate material with an irregular morphology; and mixing the first and second lithium iron phosphate materials in equal mass ratio to obtain a lithium iron phosphate positive electrode material, the fitted value of the maximum compaction density of which is C, where C=0.0847t1+0.0196T1−0.0095t2+0.0261T2−33.6716. T1 and t1 represent the sintering temperature and sintering time of the first lithium iron phosphate material respectively, T2 and t2 represent the sintering temperature and sintering time of the second lithium iron phosphate material respectively.

IPC Classes  ?

  • H01M 4/58 - Selection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
  • C01B 25/45 - Phosphates containing plural metal, or metal and ammonium
  • H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx

11.

ACTIVE METAL BRAZING PASTE COMPOSITION, BRAZING PASTE, AND METHOD FOR BRAZING CERAMICS AND METALS

      
Application Number 18398030
Status Pending
Filing Date 2023-12-27
First Publication Date 2024-04-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Zhou, Wei
  • Zhu, Yiming
  • Xu, Qiang
  • Zhao, Wenyan
  • Li, Xiayang

Abstract

Disclosed are an active metal brazing paste composition, a brazing paste and a method for brazing ceramics and metals. The composition includes a binder and metal powder. The metal powder includes active metal brazing powder and brazing-aid metal powder. The brazing-aid metal powder contains copper powder and/or copper-silver alloy powder. The active metal brazing powder is alloy powder containing copper, silver, and an active metal. With the total weight of the metal powder as a reference, the content of the active metal is 1.5 wt % or more, the content of silver is 40 wt % to 90 wt %, and the content of oxygen is 0.5 wt % or less.

IPC Classes  ?

  • B23K 35/02 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
  • B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
  • B22F 1/103 - Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing an organic binding agent comprising a mixture of, or obtained by reaction of, two or more components other than a solvent or a lubricating agent
  • B23K 1/008 - Soldering within a furnace
  • B23K 35/30 - Selection of soldering or welding materials proper with the principal constituent melting at less than 1550°C

12.

VEHICLE AND CHARGING METHOD THEREFOR AND STORAGE MEDIUM

      
Application Number 18540188
Status Pending
Filing Date 2023-12-14
First Publication Date 2024-04-11
Owner BYD COMPANY LIMITED (China)
Inventor
  • Lian, Yubo
  • Ling, Heping
  • Liu, Junhua
  • An, Fengjun
  • Wen, Qi

Abstract

A charging method includes: obtaining a first voltage of a charging port of a vehicle; determining a target buck value based on the first voltage, adjusting a voltage on a buck side of a buck-boost converter of the vehicle based on the target buck value, and sending the target buck value to a charging pile to enable the charging pile to determine an output voltage of the charging pile based on the target buck value; increasing a charging demand current of the vehicle to a maximum allowable charging current of the vehicle; and charging the vehicle according to the maximum allowable charging current.

IPC Classes  ?

  • B60L 53/62 - Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
  • B60L 53/30 - Constructional details of charging stations
  • B60L 53/66 - Data transfer between charging stations and vehicles

13.

METHOD FOR PREVENTING TURNOUT CONFLICT AND TARGET CONTROL DEVICE

      
Application Number 18542063
Status Pending
Filing Date 2023-12-15
First Publication Date 2024-04-11
Owner BYD COMPANY LIMITED (China)
Inventor
  • Chen, Chujun
  • Zhuo, Kaikuo
  • Liu, Weihua

Abstract

A method for preventing a turnout conflict of a railway is applicable to a railway controller and includes: receiving a first request from a first train and a second request from a second train for using a turnout within a time period; determining whether a first distance between a current position of the first train and the turnout is equal to a second distance between a current position of the second train and the turnout; and in response to determining that the first distance is equal to the second distance, determining a priority user based on first arrival information of the first train and second arrival information of the second train, where the arrival information includes whether the train arrives at a next parking station on schedule, ahead of schedule, or behind schedule when running at a maximum running speed.

IPC Classes  ?

  • B61L 27/16 - Trackside optimisation of vehicle or vehicle train operation
  • B61L 25/02 - Indicating or recording positions or identities of vehicles or vehicle trains

14.

DEGRADED TRAIN EMERGENCY RESCUE METHOD AND APPARATUS BASED ON VEHICLE-VEHICLE COMMUNICATION

      
Application Number 18542112
Status Pending
Filing Date 2023-12-15
First Publication Date 2024-04-11
Owner BYD COMPANY LIMITED (China)
Inventor
  • Chen, Chujun
  • Chen, Meizhu

Abstract

A method for a degraded train emergency rescue includes: obtaining a communication status of a private communication network that connects a train to a ground system, to a front train, and to a rear train; determining whether the private communication network fails based on the communication status; in response to determining that the private communication network fails, restarting an on-board private network switch of the train; determining whether the private communication network is recovered after the on-board private network switch is restarted; in response to determining that the private communication network is not recovered, starting an on-board public network switch of the train, and establishing public network communication between the train and each of the front train and the rear train; and performing an emergency rescue through a public network.

IPC Classes  ?

  • B61L 15/00 - Indicators provided on the vehicle or vehicle train for signalling purposes

15.

Bumper for a vehicle

      
Application Number 29849449
Grant Number D1021715
Status In Force
Filing Date 2022-08-11
First Publication Date 2024-04-09
Grant Date 2024-04-09
Owner BYD Company Limited (China)
Inventor
  • Bustos, Alejandro Esteban
  • Liu, Zongfu

16.

MOTOR CONTROLLER AND VEHICLE HAVING SAME

      
Application Number 18525205
Status Pending
Filing Date 2023-11-30
First Publication Date 2024-04-04
Owner BYD COMPANY LIMITED (China)
Inventor
  • Yu, Fengchuan
  • Zhang, Xingchun
  • Zeng, Qinghui

Abstract

A motor controller includes a first box body including a first surface and a second surface opposite to each other along a thickness direction of the first box body, and includes a cooling water passage that includes a first opening on the first surface. An IGBT module is disposed on the first surface and disposed in the cooling water passage. The motor controller further includes a capacitor disposed on the second surface and connected to the IGBT module, and includes a housing and a capacitor core disposed in the housing. The housing has a heat dissipation opening configured to expose the capacitor core. The motor controller further includes a heat conductor covering the heat dissipation opening. One side of the heat conductor is in contact with the capacitor core, and the other side is in contact with an outer wall surface of the cooling water passage.

IPC Classes  ?

  • H02K 11/33 - Drive circuits, e.g. power electronics
  • H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
  • H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil

17.

BATTERY MODULE, BATTERY PACK, AND VEHICLE

      
Application Number 18531937
Status Pending
Filing Date 2023-12-07
First Publication Date 2024-04-04
Owner BYD COMPANY LIMITED (China)
Inventor
  • Chen, Tao
  • Liu, Guoxiong
  • Zhang, Xiaorui
  • Liu, Jian
  • Wang, Gaowu

Abstract

A battery module, a battery pack, and a vehicle are provided. The battery module includes a battery body, an end plate, and a cover body. The battery body includes multiple battery cells. The multiple battery cells are arranged side by side. The end plate is arranged on an end portion of the battery body. According to the battery module, the end plate is arranged on the end portion of the battery body, the end plate is provided with a first exhaust channel therein, the cover body is engaged with multiple pressure relief valves to form a second exhaust channel, and the second exhaust channel is in communication with the first exhaust channel.

IPC Classes  ?

  • H01M 50/358 - External gas exhaust passages located on the battery cover or case
  • B60R 16/02 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric
  • B60R 16/033 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems characterised by the use of electrical cells or batteries
  • H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
  • H01M 50/271 - Lids or covers for the racks or secondary casings
  • H01M 50/298 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the wiring of battery packs
  • H01M 50/342 - Non-re-sealable arrangements

18.

BATTERY PACK AND AUTOMOBILE

      
Application Number 18535746
Status Pending
Filing Date 2023-12-11
First Publication Date 2024-04-04
Owner BYD COMPANY LIMITED (China)
Inventor
  • Zhang, Ke
  • E, Congji
  • Guo, Zizhu
  • Pan, Yi
  • Lu, Zhipei

Abstract

A battery pack and a vehicle are provided. The battery pack is configured to provide electric energy required by the vehicle under different operating conditions. The battery pack includes a task manager, a first battery unit and a second battery unit. The first battery unit and the second battery unit respectively respond to a different operating state of a load and provide the electric energy required under the control of the task manager.

IPC Classes  ?

  • B60L 50/64 - Constructional details of batteries specially adapted for electric vehicles
  • B60L 58/18 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules

19.

METHOD AND SYSTEM FOR CONTROLLING BATTERY SWAPPING OF VEHICLE, AND VEHICLE

      
Application Number 18535919
Status Pending
Filing Date 2023-12-11
First Publication Date 2024-04-04
Owner BYD COMPANY LIMITED (China)
Inventor
  • Lu, Hao
  • Tan, Zhicheng
  • She, Hongtao
  • Guo, Mingyang
  • Pan, Kangxian

Abstract

A method for controlling battery swapping of a vehicle is provided. The vehicle induces a vehicle control unit (VCU), a bidirectional DC-DC converter assembly, a vehicle load, a battery controller, a power battery pack, and a storage battery. The method includes: receiving, by the VCU, a battery swapping instruction when the vehicle is in the high-voltage power-on state; transmitting, by the VCU, a switching instruction to the bidirectional DC-DC converter assembly in response to the battery swapping instruction; and disabling, by the bidirectional DC-DC converter assembly, the buck mode in response to the switching instruction to cut off electrical connection between the power battery pack and a high-voltage circuit of the vehicle by a battery controller, and enabling the boost mode in response to the switching instruction to supply power to the vehicle load by the storage battery through the bidirectional DC-DC converter assembly.

IPC Classes  ?

  • B60L 53/80 - Exchanging energy storage elements, e.g. removable batteries
  • B60L 53/22 - Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
  • B60L 53/62 - Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge

20.

SERVER CHASSIS AND SERVER

      
Application Number 18538915
Status Pending
Filing Date 2023-12-13
First Publication Date 2024-04-04
Owner BYD COMPANY LIMITED (China)
Inventor
  • Yu, Zhitao
  • Gong, Wanchun

Abstract

Disclosed are a server chassis and a server. The server chassis includes a bottom case and a fan module. The bottom case includes a bottom plate, and the fan module is arranged in the bottom case. The fan module includes a fan support, multiple fan bodies, and a driving member. The fan support is provided with multiple accommodating cavities, and the multiple fan bodies are mounted in the multiple accommodating cavities. The driving member is rotatably connected to the fan support, and the driving member is adapted to drive the fan module to move relative to the bottom case in a direction perpendicular to the bottom plate. The fan module moves in and out of the bottom case through the driving member. The server includes the server chassis.

IPC Classes  ?

  • H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

21.

MATERIAL REMOVAL DEVICE AND METHOD FOR BATTERY ELECTRODE PLATE

      
Application Number 18541338
Status Pending
Filing Date 2023-12-15
First Publication Date 2024-04-04
Owner BYD COMPANY LIMITED (China)
Inventor
  • Wei, Hao
  • Yang, Zhike
  • Zhong, Beijun

Abstract

A device for removing a coating material from a battery electrode plate is provided. The battery electrode plate includes a current collector and a coating material attached to a surface of the current collector. The device includes a housing, a spraying port, and a suction port. The housing includes a side plate. A hollow space is defined by the side plate. The side plate is configured to be in contact with the current collector to isolate a portion of the coating material in the hollow space. The spraying port is located in the hollow space, and configured to be in communication with a liquid source to spray a liquid onto the portion of the coating material to dissolve the coating material. The suction port is located in the hollow space and configured to be in communication with a vacuum generation device to suck the dissolved coating material away from the current collector.

IPC Classes  ?

  • B05B 13/02 - Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
  • B05B 14/30 - Arrangements for collecting, re-using or eliminating excess spraying material comprising enclosures close to, or in contact with, the object to be sprayed and surrounding or confining the discharged spray or jet but not the object to be sprayed
  • B05C 5/02 - Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work from an outlet device in contact, or almost in contact, with the work
  • H01M 4/139 - Processes of manufacture

22.

PISTON PUMP ASSEMBLY FOR USE IN BRAKING SYSTEM, AND CONTROL METHOD THEREFOR

      
Application Number 17769012
Status Pending
Filing Date 2020-10-14
First Publication Date 2024-03-28
Owner BYD COMPANY LIMITED (China)
Inventor
  • Yao, Yugang
  • Liu, Guoshan
  • Su, Donglin
  • Liu, Jing
  • Zhang, Nan

Abstract

A piston pump group for a brake system and a control method thereof are provided, and the piston pump group includes: a piston, a pump body provided with an operating chamber, and a transmission mechanism used for driving the piston to move in the operating chamber, where the transmission mechanism includes a lead screw transmission assembly, a follower, and a planetary gear assembly used for transmitting power to the lead screw transmission assembly, the follower is fixedly connected to the piston, the lead screw transmission assembly is used for driving the follower to move relative to the operating chamber, and a limiting member used for limiting the movement of the follower is disposed between the lead screw transmission assembly and the follower.

IPC Classes  ?

  • B60T 13/20 - Pressure supply arrangements using pumps directly, i.e. without interposition of accumulators or reservoirs with control of pump driving means
  • B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
  • B60T 17/22 - Devices for monitoring or checking brake systems; Signal devices
  • F04B 17/00 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors
  • F04B 49/00 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups

23.

CURRENT COLLECTOR AND PREPARATION METHOD THEREFOR, NEGATIVE ELECTRODE, AND ELECTROCHEMICAL ENERGY STORAGE DEVICE

      
Application Number 18521727
Status Pending
Filing Date 2023-11-28
First Publication Date 2024-03-28
Owner BYD COMPANY LIMITED (China)
Inventor
  • Pan, Yi
  • Xie, Jing
  • Guo, Zizhu
  • Sun, Huajun

Abstract

A current collector includes: a first polymer layer; a metal layer, the metal layer being disposed on a side of the first polymer layer; and a second polymer layer, the second polymer layer being disposed on a side of the metal layer far away from the first polymer layer; and in a direction from the first polymer layer to the second polymer layer, the current collector having a number of through-holes that penetrate the current collector.

IPC Classes  ?

  • H01M 4/66 - Selection of materials
  • H01M 4/74 - Meshes or woven material; Expanded metal
  • H01M 10/052 - Li-accumulators
  • H01M 10/658 - Means for temperature control structurally associated with the cells by thermal insulation or shielding

24.

CONTACTOR FOR VEHICLE, VEHICLE CHARGING AND POWER DISTRIBUTION SYSTEM, CHARGING PILE, AND VEHICLE

      
Application Number 18526201
Status Pending
Filing Date 2023-12-01
First Publication Date 2024-03-28
Owner BYD COMPANY LIMITED (China)
Inventor
  • Huang, Tuodi
  • Wang, Xuechao
  • Shi, Lei
  • Yan, Dengyan
  • Liu, Qing

Abstract

A contactor for a vehicle, includes: a first wiring terminal, a second wiring terminal, a conducting bar, and a driving assembly. A first conduction section and a second conduction section of the conducting bar are connected to each other and are configured to rotate with respect to each other. The first conduction section is fixed on the first wiring terminal, and the second conduction section is electrically connected to or electrically disconnected from the second wiring terminal. The driving assembly is configured to drive the second conduction section to move toward or away from the second wiring terminal. The first wiring terminal and the second wiring terminal are disposed opposite to the conducting bar in a first direction, the driving assembly is disposed opposite to the conducting bar, or the first wiring terminal, or the second wiring terminal in a second direction different from the first direction.

IPC Classes  ?

  • B60L 53/16 - Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles

25.

BATTERY PACK CHARGING SYSTEM AND CHARGING APPARATUS

      
Application Number 18529925
Status Pending
Filing Date 2023-12-05
First Publication Date 2024-03-28
Owner BYD COMPANY LIMITED (China)
Inventor Guo, Shu

Abstract

A battery pack charging system includes a charging base disposed at a charging station and electrically connected to a battery pack to charge the battery pack when the battery pack is placed on the charging base; and a cooling structure disposed on the charging base and configured to cool the battery pack.

IPC Classes  ?

  • H01M 10/66 - Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
  • B60L 53/302 - Cooling of charging equipment
  • H01M 10/613 - Cooling or keeping cold
  • H01M 10/615 - Heating or keeping warm
  • H01M 10/625 - Vehicles
  • H01M 10/6556 - Solid parts with flow channel passages or pipes for heat exchange
  • H01M 10/6568 - Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings

26.

VEHICLE CHARGING PORT COVER CONTROL METHOD AND VEHICLE CHARGING PORT COVER CONTROL DEVICE

      
Application Number 18533392
Status Pending
Filing Date 2023-12-08
First Publication Date 2024-03-28
Owner BYD COMPANY LIMITED (China)
Inventor
  • Zhang, Canlin
  • Zheng, Xiaoling

Abstract

A control method for a charging port cover of a vehicle including a charging end assembly. The charging end assembly includes a charging port having a fast charging port and a slow charging port and a charging port cover having a fast charging port cover and a slow charging port cover. The method includes: when a charging port cover opening signal is received, controlling both the fast charging port cover and the slow charging port cover to be opened; when one of the fast charging port and the slow charging port is detected to be inserted with a plug-in end of a charging device, generating a charging port cover closing instruction; and controlling the charging port cover corresponding to the charging port into which the plug-in end is not inserted to be closed according to the charging port cover closing instruction.

IPC Classes  ?

  • E05F 15/73 - Power-operated mechanisms for wings with automatic actuation responsive to movement or presence of persons or objects
  • B60L 53/16 - Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
  • H01R 13/447 - Shutter or cover plate

27.

CHARGING PORT DEVICE, OPENING AND CLOSING METHOD, AND VEHICLE

      
Application Number 18533482
Status Pending
Filing Date 2023-12-08
First Publication Date 2024-03-28
Owner BYD COMPANY LIMITED (China)
Inventor
  • Zhang, Canlin
  • Wang, Xiangang
  • Liu, Dongbin
  • Liang, Wei

Abstract

A charging port device includes a charging port driver, a fast charging driver, a slow charging driver, a slow charging port cover, a fast charging port cover, an outer cover, and a mounting housing provided with a mounting hole. A fast charging port and a slow charging port are arranged in the mounting hole. An output terminal of the charging port driver is connected with the outer cover, and the outer cover is configured to cover the mounting hole. An output terminal of the fast charging driver is connected with the fast charging port cover, and the fast charging port cover is configured to cover the fast charging port. An output terminal of the slow charging driver is connected with the slow charging port cover, and the slow charging port cover is configured to cover the slow charging port.

IPC Classes  ?

  • E05F 15/635 - Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings operated by push-pull mechanisms, e.g. flexible or rigid rack-and-pinion arrangements
  • B60L 53/16 - Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
  • H01R 13/447 - Shutter or cover plate

28.

GLASS COMPOSITE, CASING, DISPLAY DEVICE AND TERMINAL DEVICE

      
Application Number 18523987
Status Pending
Filing Date 2023-11-30
First Publication Date 2024-03-28
Owner BYD COMPANY LIMITED (China)
Inventor
  • Ma, Lan
  • Chen, Liang
  • Yuan, Xiong
  • Li, Chen

Abstract

A glass composite includes a first glass member and a second glass member. The first glass member and the second glass member are at least partially connected with each other at the surfaces; and the glass composite has a light transmittance not lower than 95% of the light transmittance of the one, with the lower light transmittance, of the first glass member and the second glass member.

IPC Classes  ?

  • C03C 27/06 - Joining glass to glass by processes other than fusing
  • B08B 3/08 - Cleaning involving contact with liquid the liquid having chemical or dissolving effect
  • B08B 7/00 - Cleaning by methods not provided for in a single other subclass or a single group in this subclass
  • B08B 11/04 - Cleaning flexible or delicate articles by methods or apparatus specially adapted thereto specially adapted for plate glass, e.g. prior to manufacture of windshields
  • B32B 3/26 - Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form characterised by a layer with cavities or internal voids
  • B32B 7/023 - Optical properties
  • B32B 17/06 - Layered products essentially comprising sheet glass, or fibres of glass, slag or the like comprising glass as the main or only constituent of a layer, next to another layer of a specific substance
  • B32B 37/18 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only
  • B32B 38/00 - Ancillary operations in connection with laminating processes
  • B32B 38/16 - Drying; Softening; Cleaning
  • C03C 15/00 - Surface treatment of glass, not in the form of fibres or filaments, by etching
  • C03C 17/00 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating
  • C03C 23/00 - Other surface treatment of glass not in the form of fibres or filaments
  • H05K 5/03 - Covers

29.

CYLINDRICAL BATTERY AND VEHICLE

      
Application Number 18526259
Status Pending
Filing Date 2023-12-01
First Publication Date 2024-03-28
Owner BYD COMPANY LIMITED (China)
Inventor
  • Rong, Liangbin
  • Pan, Qiu
  • Wang, Xinyue
  • Cheng, Han
  • Yuan, Wansong

Abstract

A cylindrical battery includes a housing having an accommodating space; and a negative electrode sheet, a first separator, a positive electrode sheet, and a second separator that are wound multiple turns forming an electrode core. The housing is co-axial with the electrode core that is disposed in the accommodating space. The positive electrode sheet includes a positive electrode material layer and a positive electrode foil layer. The negative electrode sheet includes a negative electrode material layer and a negative electrode foil layer. Some of the wound turns of the positive electrode foil layer extends toward an end of the housing to form a positive electrode tab. Some of the wound turns of the negative electrode foil layer extends toward another end of the housing to form the negative electrode tab.

IPC Classes  ?

  • H01M 50/46 - Separators, membranes or diaphragms characterised by their combination with electrodes
  • H01M 4/70 - Carriers or collectors characterised by shape or form
  • H01M 50/107 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic

30.

METHOD AND SYSTEM FOR CONTROLLING AUTOMATIC BATTERY SWAPPING OF RAIL VEHICLE, ELECTRONIC DEVICE, AND STORAGE MEDIUM

      
Application Number 18535895
Status Pending
Filing Date 2023-12-11
First Publication Date 2024-03-28
Owner BYD COMPANY LIMITED (China)
Inventor
  • Lu, Hao
  • Tan, Zhicheng
  • She, Hongtao
  • Guo, Mingyang
  • Zhang, Keqi

Abstract

A method for controlling automatic battery swapping of a rail vehicle, includes: receiving vehicle information sent by the rail vehicle; determining whether the rail vehicle has a battery swapping need based on the vehicle information of the rail vehicle; in response to determining that the rail vehicle has the battery swapping need, determining a target battery swapping station according to the battery swapping need; and sending a battery swapping notification signal and a vehicle control signal to the rail vehicle, and sending a battery swapping request signal to the target battery swapping station, where the battery swapping notification signal includes position information of the target battery swapping station, the vehicle control signal controls the rail vehicle to travel to the target battery swapping station, and the battery swapping request signal includes identification information of the rail vehicle and requests the target battery swapping station to swap a battery pack for the rail vehicle.

IPC Classes  ?

  • B60L 53/80 - Exchanging energy storage elements, e.g. removable batteries
  • B61L 27/10 - Operations, e.g. scheduling or time tables
  • B61L 27/70 - Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor - Details of trackside communication

31.

INTEGRATED CONTROLLER, ELECTRIC DRIVE ASSEMBLY, AND VEHICLE

      
Application Number 18524205
Status Pending
Filing Date 2023-11-30
First Publication Date 2024-03-21
Owner BYD COMPANY LIMITED (China)
Inventor
  • Guo, Caifang
  • Qi, Axi
  • Liu, Jian
  • Gao, Jian
  • Li, Lele

Abstract

An integrated controller includes: a box; a controller and a charging/discharging converter disposed in the box; and a high-voltage interface assembly including a high-voltage interface disposed on the box and a high-voltage connector disposed in the box. The high-voltage connector is connected with the high-voltage interface, the controller, and the charging/discharging converter to receive and distribute a high-voltage battery signal.

IPC Classes  ?

  • B60L 53/22 - Constructional details or arrangements of charging converters specially adapted for charging electric vehicles

32.

LOW-VOLTAGE POWER SUPPLY SYSTEM AND VEHICLE HAVING SAME

      
Application Number 18526299
Status Pending
Filing Date 2023-12-01
First Publication Date 2024-03-21
Owner BYD COMPANY LIMITED (China)
Inventor
  • Guo, Caifang
  • Qi, Axi
  • Liu, Jian
  • Gao, Jian
  • Li, Lele

Abstract

A low-voltage power supply system includes: a storage battery; an electric control circuit board, the electric control circuit board being connected with the storage battery, a battery management controller (BMC) and a motor controller being integrated on the electric control circuit board, and the motor controller being configured to control a power module; a control circuit being connected with the BMC and being configured to receive a control command of the BMC; a metal-oxide-semiconductor field-effect transistor (MOSFET) connected with the control circuit; and a battery management system. A contactor is arranged in the battery management system. The MOSFET is connected with the contactor and mounted to the electric control circuit board or the battery management system. The BMC is configured to control on/off of the MOSFET through the control circuit, to implement connection/disconnection between the storage battery and the contactor.

IPC Classes  ?

  • B60R 16/023 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for transmission of signals between vehicle parts or subsystems
  • B60R 16/033 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems characterised by the use of electrical cells or batteries

33.

BUS CAPACITOR AND AUTOMOBILE

      
Application Number 18526963
Status Pending
Filing Date 2023-12-01
First Publication Date 2024-03-21
Owner BYD COMPANY LIMITED (China)
Inventor
  • Han, Bing
  • Louis, Alain Yves
  • He, Yongbin
  • He, Ruixing

Abstract

A bus capacitor includes: multiple capacitor layers stacked along a thickness direction of the bus capacitor, a dielectric being filled between two adjacent capacitor layers; the multiple capacitor layers including multiple positive capacitor layers and multiple negative capacitor layers; a first hole extending along the thickness direction, the first hole running through the multiple positive capacitor layers, a first conductive member disposed in the first hole, and the first conductive member being in contact with the multiple positive capacitor layers to electrically connect the multiple positive capacitor layers with each other; a second hole extending along the thickness direction, the second hole running through the multiple negative capacitor layers, a second conductive member disposed in the second hole, and the second conductive member being in contact with the multiple negative capacitor layers to electrically connect the multiple negative capacitor layers with each other.

IPC Classes  ?

  • H01G 4/232 - Terminals electrically connecting two or more layers of a stacked or rolled capacitor
  • H01G 4/012 - Form of non-self-supporting electrodes
  • H01G 4/242 - Terminals the capacitive element surrounding the terminal
  • H01R 13/66 - Structural association with built-in electrical component

34.

DISTRIBUTOR, CHARGING AND DISTRIBUTION SYSTEM FOR VEHICLE, VEHICLE, AND CHARGING PILE

      
Application Number 18521133
Status Pending
Filing Date 2023-11-28
First Publication Date 2024-03-21
Owner BYD COMPANY LIMITED (China)
Inventor
  • Huang, Tuodi
  • Xue, Penghui
  • Li, Zunjie
  • Liu, Fen
  • Liu, Chao

Abstract

A distributor includes: an outer housing; a direct current charging interface, an electronic control terminal interface, and a battery terminal interface disposed in the outer housing. A first contactor and a second contactor are connected between the electronic control terminal interface and the battery terminal interface. A third contactor and a pre-charge resistor form a pre-charge branch. A fourth contactor is connected between the direct current charging interface and the battery terminal interface; a fifth contactor is connected between a negative terminal of the direct current charging interface and a negative terminal of the battery terminal interface; and the five contactors and a pre-charge resistor are disposed in the outer housing.

IPC Classes  ?

  • B60L 53/16 - Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
  • H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

35.

POWER DISTRIBUTION DEVICE AND TRANSPORTATION DEVICE HAVING POWER DISTRIBUTION DEVICE

      
Application Number 18522015
Status Pending
Filing Date 2023-11-28
First Publication Date 2024-03-21
Owner BYD COMPANY LIMITED (China)
Inventor
  • Wu, Zhenhan
  • Zeng, Zhi

Abstract

A power distribution device and a transportation device having the power distribution device are provided. The power distribution device includes a housing, a pre-charging circuit module, and a main positive circuit module. The housing has a mounting cavity. The pre-charging circuit module is configured to pre-charge a capacitor element in an electrical appliance, and includes a pre-charging relay. The pre-charging relay is connected with the housing. The main positive circuit module is configured to be closed after the pre-charging circuit module is opened. The main positive circuit module and the pre-charging circuit module are stacked in the mounting cavity in an up-down direction. The main positive circuit module includes a fuse and a main relay core. The main relay core is connected with the housing.

IPC Classes  ?

  • B60L 1/00 - Supplying electric power to auxiliary equipment of electrically-propelled vehicles
  • H02B 1/20 - Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
  • H02B 1/26 - Casings; Parts thereof or accessories therefor
  • H02J 7/34 - Parallel operation in networks using both storage and other dc sources, e.g. providing buffering

36.

DRY BATTERY ELECTRODE PLATE AND BATTERY

      
Application Number 18523574
Status Pending
Filing Date 2023-11-29
First Publication Date 2024-03-21
Owner BYD COMPANY LIMITED (China)
Inventor
  • Hu, Yiwei
  • Guo, Zizhu
  • Pan, Yi
  • Zhang, Jianchang
  • Sun, Huajun

Abstract

A dry battery electrode plate includes: a metal current collector and a self-supporting electrode film. The metal current collector is provided with pores. The self-supporting electrode film includes a first electrode film and a second electrode film. The first electrode film is arranged on one side of the metal current collector. The second electrode film is arranged on the other side of the metal current collector facing away from the first electrode film. The first electrode film and the second electrode film are configured to be press-fit connected by an external force. The first electrode film and the second electrode film are attached to the metal current collector. The first electrode film and the second electrode film are connected to each other at positions corresponding to the pores.

IPC Classes  ?

37.

HEAT MANAGEMENT SYSTEM FOR VEHICLE AND VEHICLE

      
Application Number 18523888
Status Pending
Filing Date 2023-11-30
First Publication Date 2024-03-21
Owner BYD COMPANY LIMITED (China)
Inventor
  • Yang, Dongsheng
  • Bai, Yunhui
  • Zhang, Junyan
  • Zhao, Shangzhong
  • Liang, Tao

Abstract

A heat management system includes a first heat exchanger, a second heat exchanger, a heat pump, an electric assembly waterway, a radiator waterway, a battery waterway, and a heat exchange waterway. The heat pump module includes a first heat exchange pipeline and a second heat exchange pipeline. A first heat exchange passage and a second heat exchange passage of the first heat exchanger are respectively disposed on the second heat exchange pipeline and the heat exchange waterway. A third heat exchange passage of the second heat exchanger is disposed on the first heat exchange pipeline, and a fourth heat exchange passage of the second heat exchanger is in communication with the radiator waterway. The radiator waterway and the electric assembly waterway may be in communication in series.

IPC Classes  ?

  • B60H 1/00 - Heating, cooling or ventilating devices
  • B60H 1/10 - Heating, cooling or ventilating devices the heat being derived from the propulsion plant from cooling liquid of the plant from other radiator than main radiator the other radiator being situated in a duct capable of being connected to atmosphere outside vehicle
  • B60H 1/14 - Heating, cooling or ventilating devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant
  • B60K 11/04 - Arrangement or mounting of radiators, radiator shutters, or radiator blinds
  • H01M 10/615 - Heating or keeping warm
  • H01M 10/625 - Vehicles
  • H01M 10/6569 - Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
  • H01M 10/663 - Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine

38.

THERMAL MANAGEMENT SYSTEM AND VEHICLE HAVING SAME

      
Application Number 18523892
Status Pending
Filing Date 2023-11-30
First Publication Date 2024-03-21
Owner BYD COMPANY LIMITED (China)
Inventor
  • Yang, Dongsheng
  • Bai, Yunhui
  • Zhang, Junyan
  • Zhao, Shangzhong
  • Tang, Yifeng

Abstract

A thermal management system includes a heat pump, a battery waterway, a heat exchange waterway, a heat dissipator waterway, an electric assembly waterway, a first heat exchanger, and a control valve group. A first heat exchange path of the first heat exchanger is connected to the heat pump, and a second heat exchange path of the first heat exchanger is connected to the heat exchange waterway. The electric assembly waterway may be connected to the heat dissipator waterway or the heat exchange waterway in series. The battery waterway may be connected to the heat dissipator waterway or the heat exchange waterway in series. The battery waterway, the heat exchange waterway, the heat dissipator waterway, and the electric assembly waterway may be connected in series.

IPC Classes  ?

39.

MOTOR OVERLOAD PROTECTION METHOD, MOTOR CONTROLLER, VEHICLE, AND STORAGE MEDIUM

      
Application Number 18524070
Status Pending
Filing Date 2023-11-30
First Publication Date 2024-03-21
Owner BYD COMPANY LIMITED (China)
Inventor
  • Wang, Chunsheng
  • Xu, Boliang
  • Xiong, Wei
  • Qin, Tao
  • Cao, An

Abstract

A method for protecting a motor from overloading includes: acquiring a present effective value of a phase current of a motor; performing time integration on the present effective value of the phase current, to obtain a first integral value; obtaining a first threshold; performing overload detection according to the first threshold and the first integral value; determining a target limiting current for operation of the motor if an overload occurs; and controlling the operation of the motor based on the target limiting current.

IPC Classes  ?

  • H02P 29/032 - Preventing damage to the motor, e.g. setting individual current limits for different drive conditions

40.

CURRENT COLLECTOR, ELECTRODE SHEET, AND FABRICATION METHOD FOR CURRENT COLLECTOR

      
Application Number 18524583
Status Pending
Filing Date 2023-11-30
First Publication Date 2024-03-21
Owner BYD COMPANY LIMITED (China)
Inventor
  • Cui, Yanhui
  • Pan, Yi
  • Mei, Riguo

Abstract

A current collector, an electrode sheet, and a fabrication method for a current collector are disclosed. The current collector includes a support layer, a first electrically conductive layer and a second electrically conductive layer. The support layer has a first surface and a second surface arranged opposite to each other. The first electrically conductive layer has a grid structure distributed on the first surface and/or the second surface of the support layer. The second electrically conductive layer is provided on a surface of the first electrically conductive layer away from the support layer.

IPC Classes  ?

  • H01M 4/74 - Meshes or woven material; Expanded metal
  • H01M 4/04 - Processes of manufacture in general
  • H01M 4/66 - Selection of materials

41.

ON-BOARD CHARGER AND ELECTRIC VEHICLE

      
Application Number 18524903
Status Pending
Filing Date 2023-11-30
First Publication Date 2024-03-21
Owner BYD COMPANY LIMITED (China)
Inventor
  • Wang, Xinghui
  • Wang, Chao
  • Liu, Weidong

Abstract

A on-board charger includes a microprocessor and a storage battery connected with a DC charger. A first sampling point is disposed between the DC charger and a storage battery. A second sampling point is disposed between the storage battery and the microprocessor. The microprocessor is configured to: obtain a first voltage and a current of the first sampling point, and obtain a second voltage of the second sampling point; and determine the connection between the storage battery and the DC module is cut off and record a first difference between the second voltage and the first voltage, when the first voltage is greater than the second voltage and the current is less than a preset current threshold.

IPC Classes  ?

  • B60L 53/22 - Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
  • B60L 53/14 - Conductive energy transfer
  • H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

42.

METHOD AND APPARATUS FOR CONTROLLING HEATING OF ELECTRIC DRIVE SYSTEM OF VEHICLE, HEATING SYSTEM, AND VEHICLE

      
Application Number 18524970
Status Pending
Filing Date 2023-11-30
First Publication Date 2024-03-21
Owner BYD COMPANY LIMITED (China)
Inventor
  • Xu, Luhui
  • Xu, Xiangshuai
  • Ren, Shaopeng
  • Du, Zhiyong

Abstract

A method for controlling heating of an electric drive system of a vehicle, the electric drive system includes a motor controller and a motor, and the method includes: determining that the vehicle is in a travelling state; obtaining a rotation speed value and a torque control value of a motor and obtaining a carrier instruction value of a motor controller when receiving a heating instruction; obtaining a first current instruction value based on the rotation speed value and the torque control value, and obtaining a second current instruction value based on the torque control value and the first current instruction value; adjusting a control signal of the motor controller based on at least one of the second current instruction value or a second carrier frequency; and controlling the motor to operate based on the adjusted control signal, so that the electric drive system generates heat.

IPC Classes  ?

  • B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performance; Adaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed

43.

POSITIONING SYSTEM AND METHOD

      
Application Number 18526234
Status Pending
Filing Date 2023-12-01
First Publication Date 2024-03-21
Owner BYD COMPANY LIMITED (China)
Inventor
  • Wu, Hongwen
  • Jiang, Longping
  • Huang, Chengxiong
  • Zhuo, Kaikuo

Abstract

A positioning system includes a target device and multiple base stations connected with the target device. The multiple base stations include a master base station and multiple slave base stations that include a first slave base station and a second slave base station and are serially connected based on a synchronization order. The master base station is connected with the first slave base station. The master base station transmits a first positioning information to the target device and transmits a synchronization message to the multiple slave base stations based on the synchronization order. Each of the slave base stations transmits a second positioning information to the target device. The target device obtains location information of the target device based on an inter-station delay, a base station location, a first time receiving the first positioning information, and a second time receiving the second positioning information.

IPC Classes  ?

  • H04W 64/00 - Locating users or terminals for network management purposes, e.g. mobility management

44.

Vehicle bumper

      
Application Number 29813408
Grant Number D1018390
Status In Force
Filing Date 2021-10-28
First Publication Date 2024-03-19
Grant Date 2024-03-19
Owner BYD COMPANY LIMITED (China)
Inventor
  • Shangguan, Changshu
  • Zhu, Wenxi
  • Lou, Lingyun

45.

STEERING WHEEL FEEL COMPENSATION METHOD

      
Application Number 18516652
Status Pending
Filing Date 2023-11-21
First Publication Date 2024-03-14
Owner BYD COMPANY LIMITED (China)
Inventor
  • Liu, Peng
  • Tao, Wenxiu
  • Tong, Yunchun
  • Wang, Xin
  • Liao, Yinsheng

Abstract

A method for compensating steering wheel feel, is applied to a vehicle. The vehicle includes a first motor, a second motor, and a third motor. The first motor is configured to drive a left front wheel of the vehicle, the second motor is configured to drive a right front wheel of the vehicle, and the third motor is configured to drive a steering gear. The method includes: obtaining a traveling status and a steering status of the vehicle, and determining a compensation manner of the third motor; obtaining a driving torque of the first motor and a driving torque of the second motor, and determining a compensation torque for the third motor; and applying the compensation torque for the third motor to the third motor based on the compensation manner.

IPC Classes  ?

  • B62D 6/00 - Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
  • B62D 5/04 - Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear

46.

VEHICLE, AND ENERGY CONVERSION APPARATUS AND CHARGING METHOD THEREOF

      
Application Number 18516694
Status Pending
Filing Date 2023-11-21
First Publication Date 2024-03-14
Owner BYD COMPANY LIMITED (China)
Inventor
  • Li, Xiangxiang
  • Li, Weicheng
  • Shi, Lei
  • Chen, Mingwen

Abstract

A vehicle has an energy conversion apparatus. The energy conversion apparatus includes a first switch module and a second switch module, and configures the second switch module between a power battery and a voltage transformation module. When the first switch module is closed, the power battery, the first switch module, an energy storage module, and an external power supply module form a first charging loop. When the second switch module is closed, the power battery, the second switch module, the voltage transformation module, the energy storage module, and the external power supply module form a second charging loop.

IPC Classes  ?

  • B60L 53/24 - Using the vehicle's propulsion converter for charging
  • B60L 53/22 - Constructional details or arrangements of charging converters specially adapted for charging electric vehicles

47.

LITHIUM IRON PHOSPHATE POSITIVE ELECTRODE MATERIAL, PREPARATION METHOD THEREOF, AND LITHIUM ION BATTERY

      
Application Number 18505077
Status Pending
Filing Date 2023-11-08
First Publication Date 2024-03-07
Owner BYD COMPANY LIMITED (China)
Inventor
  • Xu, Yunling
  • Xu, Chaqing
  • Chen, Junyue
  • Cao, Wenyu

Abstract

A lithium iron phosphate positive electrode material, a preparation method thereof, and a lithium ion battery are disclosed. The lithium iron phosphate positive electrode material has an expression formula of LiFe1-xMxPO4/C, in which, 0

IPC Classes  ?

  • H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
  • H01M 4/58 - Selection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
  • H01M 4/583 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx

48.

Train

      
Application Number 29679139
Grant Number D1016669
Status In Force
Filing Date 2019-02-01
First Publication Date 2024-03-05
Grant Date 2024-03-05
Owner BYD COMPANY LIMITED (China)
Inventor
  • Lian, Yubo
  • Ren, Lin
  • Egger, Wolfgang Josef
  • Hou, Xiaoguang
  • Tang, Wenquan
  • Fang, Qingyang
  • Hu, Peng

49.

Car body

      
Application Number 29813409
Grant Number D1016671
Status In Force
Filing Date 2021-10-28
First Publication Date 2024-03-05
Grant Date 2024-03-05
Owner BYD COMPANY LIMITED (China)
Inventor
  • Lian, Yubo
  • Egger, Wolfgang Josef
  • Shangguan, Changshu
  • Zhu, Wenxi
  • Lou, Lingyun
  • Yang, Bo
  • Li, Qiuhong

50.

BATTERY HOUSING, BATTERY USING BATTERY HOUSING, AND ELECTRONIC DEVICE USING BATTERY

      
Application Number 18386629
Status Pending
Filing Date 2023-11-03
First Publication Date 2024-02-29
Owner BYD COMPANY LIMITED (China)
Inventor
  • Luan, Yanping
  • Gu, Liangliang
  • Wang, Bing
  • Wei, Yanwei

Abstract

A battery housing includes a plate body. The plate body has multiple folding portions and multiple side plates connected by the folding portions. The plate body is folded along the folding portions such that the side plates are connected to create an accommodating space for accommodating an electrochemical unit inside the middle housing.

IPC Classes  ?

  • H01M 50/103 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
  • H01M 50/15 - Lids or covers characterised by their shape for prismatic or rectangular cells
  • H01M 50/169 - Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
  • H01M 50/636 - Closing or sealing filling ports, e.g. using lids

51.

POWER CABINET

      
Application Number 18493340
Status Pending
Filing Date 2023-10-24
First Publication Date 2024-02-29
Owner BYD COMPANY LIMITED (China)
Inventor
  • Gao, Yunjie
  • Mi, Yaozhong
  • Wang, Hongli
  • Lv, Minghai

Abstract

This disclosure provides a power cabinet. The power cabinet includes M modules, N plug-in components, and N locking apparatuses. The M modules are sequentially stacked from top to bottom. The N plug-in components are configured to lead out a power line and/or a signal line. A pth module and a (p+1)th module are electrically connected by using a pth plug-in component, the pth module and the (p+1)th module are connected by using a pth locking apparatus, M, N, and p are all integers, M≥3, N=M−1, 1≤p≤M−1, at least one of the M modules is a battery management module, and remaining modules of the M modules are battery modules.

IPC Classes  ?

  • H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
  • H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
  • H01M 50/251 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
  • H01M 50/264 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
  • H01M 50/503 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors

52.

POWER BATTERY CHARGING METHOD, MOTOR CONTROL CIRCUIT, AND VEHICLE

      
Application Number 18505826
Status Pending
Filing Date 2023-11-09
First Publication Date 2024-02-29
Owner BYD COMPANY LIMITED (China)
Inventor
  • Liu, Changjiu
  • Pan, Hua
  • Ning, Ronghua
  • Liu, Yang
  • Yang, Ning

Abstract

A motor control circuit includes a first switch module, a three-phase inverter, and a control module. A power supply module, the first switch module, the three-phase inverter, and a three-phase alternating current motor form a current loop; midpoints of three phase legs of the three-phase inverter are respectively connected to three phase coils of the three-phase alternating current motor; the three-phase alternating current motor is configured to input or output a current by using a wire N extending from a connection point of the three phase coils; the control module is connected to the three-phase inverter, first switch module, three-phase alternating current motor, and power supply module; the control module is configured to control the three-phase inverter to enable the motor control circuit to receive a voltage of the power supply module and output a direct current, and to boost a voltage of the power supply module.

IPC Classes  ?

  • H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
  • H02J 7/04 - Regulation of the charging current or voltage
  • H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation

53.

METHOD AND APPARATUS FOR CONTROLLING WELCOMING OF VEHICLE, MEDIUM, DEVICE, AND VEHICLE

      
Application Number 18383572
Status Pending
Filing Date 2023-10-25
First Publication Date 2024-02-22
Owner BYD COMPANY LIMITED (China)
Inventor
  • Guo, Maorong
  • Wu, Lihua
  • Liu, Juan
  • Qin, Guilin
  • Zhang, Jinhua

Abstract

A method for controlling a vehicle welcoming to a user, includes: recognizing, by a processor of the vehicle, an identification (ID) of a target vehicle key; searching, by the processor, a correspondence for a welcoming manner corresponding to the ID of the target vehicle key, the correspondence comprising a plurality of IDs of a plurality of vehicle keys and a plurality of welcoming manners corresponding to the IDs of the vehicle keys; and controlling, by the processor, the vehicle to perform a first welcoming action in the welcoming manner.

IPC Classes  ?

  • B60R 25/24 - Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user
  • G07C 9/00 - Individual registration on entry or exit
  • H04L 9/40 - Network security protocols
  • G10L 15/22 - Procedures used during a speech recognition process, e.g. man-machine dialog

54.

ELECTRIC DRIVE ASSEMBLY, FOUR-WHEEL DRIVE SYSTEM, AND VEHICLE

      
Application Number 18383586
Status Pending
Filing Date 2023-10-25
First Publication Date 2024-02-15
Owner BYD COMPANY LIMITED (China)
Inventor
  • Yang, Dongsheng
  • Yang, Shenglin
  • Gao, Yuan
  • Zou, Xiaosong
  • Li, Jinpeng

Abstract

An electric drive assembly has a first wheel drive assembly and a second wheel drive assembly. The first wheel drive assembly includes a first motor, a first gear reduction mechanism, and a first disengaging mechanism. When the first disengaging mechanism is switched to an engagement position of the first disengaging mechanism, power of the first motor is transmitted to a first wheel through the first gear reduction mechanism. The second wheel drive assembly includes a second motor, a second gear reduction mechanism, and a second disengaging mechanism. When the second disengaging mechanism is switched to an engagement position of the second disengaging mechanism, power of the second motor is transmitted to a second wheel through the second gear reduction mechanism. When the first disengaging mechanism or the second disengaging mechanism is switched to a disengagement position, the power of the motors to the corresponding wheels is interrupted.

IPC Classes  ?

  • B60K 17/356 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having fluid or electric motor, for driving one or more wheels
  • B60K 1/02 - Arrangement or mounting of electrical propulsion units comprising more than one electric motor
  • B60K 17/16 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
  • F16H 37/04 - Combinations of toothed gearings only
  • B60K 7/00 - Disposition of motor in, or adjacent to, traction wheel
  • B60K 17/04 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
  • B60K 17/02 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
  • B60K 17/08 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
  • B60K 17/354 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having separate mechanical assemblies for transmitting drive to the front or to the rear wheels or set of wheels
  • F16H 3/093 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously- meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts

55.

Vehicle bumper

      
Application Number 29822999
Grant Number D1014349
Status In Force
Filing Date 2022-01-13
First Publication Date 2024-02-13
Grant Date 2024-02-13
Owner BYD COMPANY LIMITED (China)
Inventor
  • Shangguan, Changshu
  • Sun, Xu
  • Feng, Haitao
  • Lou, Lingyun

56.

ELECTRIC DRIVE SYSTEM CONTROL METHOD, ELECTRIC DRIVE SYSTEM, AND VEHICLE

      
Application Number 18382261
Status Pending
Filing Date 2023-10-20
First Publication Date 2024-02-08
Owner BYD COMPANY LIMITED (China)
Inventor
  • Lian, Yubo
  • Ling, Heping
  • Pan, Hua
  • Zhang, Yuxin
  • Xie, Zhao

Abstract

A method for controlling an electric drive system, includes: determining that the vehicle is in a traveling condition; obtaining a rotation speed value, a shaft end torque value, a present direct axis current value, and a present quadrature axis current value of the motor when receiving a vehicle heat-up demand signal; determining a target torque curve according to the shaft end torque value, and determining a target traveling heating calibration curve according to the vehicle heat-up demand signal and the rotation speed value; determining an intersection of the target torque curve and the target traveling heating calibration curve as a target traveling condition point; determining a target quadrature axis current value and a target direct axis current value according to the target traveling condition point; and controlling, according to the target direct axis current value and the target quadrature axis current value, the motor to operate.

IPC Classes  ?

  • B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performance; Adaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed

57.

DATA ARCHIVING METHOD, ELECTRONIC DEVICE, AND READABLE STORAGE MEDIUM

      
Application Number 18478664
Status Pending
Filing Date 2023-09-29
First Publication Date 2024-02-01
Owner BYD COMPANY LIMITED (China)
Inventor
  • Zhu, Yongjing
  • Luo, Junxian

Abstract

A data archiving method, an electronic device, and a readable storage medium relate to the field of the database technology. The method includes: acquiring monitoring data collected by at least one monitoring subsystem; storing, according to a preset rule, the monitoring data as multiple data objects corresponding to the monitoring subsystem; controlling a first thread corresponding to the monitoring subsystem to read the data objects into a corresponding data queue according to a preset order; and controlling a second thread corresponding to the monitoring subsystem to write the data objects from the data queue into a database in response to the first thread reading the data objects into the data queue each time.

IPC Classes  ?

  • G06F 11/34 - Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation
  • G06F 11/07 - Responding to the occurrence of a fault, e.g. fault tolerance
  • G06F 11/30 - Monitoring

58.

BATTERY MODULE AND BATTERY PACK

      
Application Number 18478687
Status Pending
Filing Date 2023-09-29
First Publication Date 2024-02-01
Owner BYD COMPANY LIMITED (China)
Inventor
  • Zhou, Lei
  • Huang, Zhixue
  • Dai, Xiangjun
  • Huang, Zhengyi

Abstract

The present disclosure provides a battery module and a battery pack. The battery module includes: multiple cells and an outer frame. The outer frame includes: four support columns, two side plates, and two end plates. The two side plates are arranged opposite to each other. The two end plates are arranged opposite to each other. The four support columns are respectively connected between end portions of the side plates and the end plates. One of a top and a bottom of the support column is provided with a support platform and another is provided with a fitting hole. The support platform of one battery module is fittable in the fitting hole of another battery module.

IPC Classes  ?

  • H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
  • H01M 50/271 - Lids or covers for the racks or secondary casings
  • H01M 50/296 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by terminals of battery packs
  • H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells

59.

VALVE SET INTEGRATED MODULE, THERMAL MANAGEMENT SYSTEM, AND VEHICLE

      
Application Number 18478737
Status Pending
Filing Date 2023-09-29
First Publication Date 2024-02-01
Owner BYD COMPANY LIMITED (China)
Inventor
  • Li, Shibai
  • Jin, Wei
  • Xu, Min
  • Ye, Meijiao
  • Li, Yuzhong

Abstract

A valve set integrated module includes a body, a first and a second electric valves. The body is provided with multiple internal flow channels and multiple interfaces configured to communicate the internal flow channels with a heat exchange assembly. The first and second electric valves on the body are in communication with the internal flow channel. The first and second electric valves are both switchable between a blocked/unblocked position and a throttled position. A first end of the first electric valve is in communication with an interior condenser outlet interface. A second end of the first electric valve is in communication with an exterior heat exchanger inlet interface. A first end of the second electric valve is in communication with an exterior heat exchanger outlet interface. A second end of the second electric valve is selectively communicated with an interior evaporator inlet interface or a gas-liquid separator inlet interface.

IPC Classes  ?

  • B60H 1/00 - Heating, cooling or ventilating devices

60.

RELAY

      
Application Number 18472326
Status Pending
Filing Date 2023-09-22
First Publication Date 2024-01-25
Owner BYD COMPANY LIMITED (China)
Inventor
  • Huang, Jiakun
  • Lu, Tao
  • Lei, Xiaoyong
  • Dai, Xiangyu

Abstract

A relay includes a static contact assembly, a movable contact plate, a static magnet yoke, a movable magnet yoke and a pushing rod assembly. The static magnet yoke and the movable magnet yoke are arranged oppositely. The movable contact plate is mounted at a position on the movable magnet yoke opposite to the static contact assembly. An isolation space is provided between the movable contact plate and the movable magnet yoke. The static contact assembly and the static magnet yoke are arranged on a side of the movable contact plate away from the pushing rod assembly. The pushing rod assembly is configured to push the movable magnet yoke to move toward the static magnet yoke to cause the movable contact plate to be in contact with the static contact assembly.

IPC Classes  ?

  • H01H 50/54 - Contact arrangements
  • H01H 50/38 - Part of main magnetic circuit shaped to suppress arcing between the contacts of the relay
  • H01H 50/18 - Movable parts of magnetic circuits, e.g. armature

61.

BATTERY COOLING PLATE, AND BATTERY SYSTEM

      
Application Number 18475602
Status Pending
Filing Date 2023-09-27
First Publication Date 2024-01-25
Owner BYD COMPANY LIMITED (China)
Inventor
  • Guo, Shu
  • Peng, Qingbo

Abstract

A battery cold plate includes two external interfaces, two convergence pipelines, and multiple branches. The two external interfaces are respectively in communication with the middle positions of the two convergence pipelines, so that the flow path of cooling liquid in the convergence pipeline is enabled to be half of the length of the convergence pipeline. The multiple branches are arranged side by side, and both ends of each of the branches are respectively in communication with the two convergence pipelines through multiple throttling ports. The total cross-sectional area of multiple throttling ports in a branch close to the external interface is less than the total cross-sectional area of multiple throttling ports in a branch away from the external interface, the cross-sectional areas of various sub-branches are the same.

IPC Classes  ?

  • H01M 10/6554 - Rods or plates
  • H01M 10/6568 - Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
  • H01M 10/613 - Cooling or keeping cold

62.

VALVE SET INTEGRATED MODULE, THERMAL MANAGEMENT SYSTEM, AND VEHICLE

      
Application Number 18478159
Status Pending
Filing Date 2023-09-29
First Publication Date 2024-01-25
Owner BYD COMPANY LIMITED (China)
Inventor
  • Li, Shibai
  • Jin, Wei
  • Xu, Min
  • Ye, Meijiao
  • Li, Yuzhong

Abstract

A valve set integrated module, a thermal management system, and a vehicle are provided. The valve set integrated module includes a body, a first electric valve, and a second electric valve. The body is provided with multiple internal flow channels and multiple interfaces configured to communicate the internal flow channels with an external heat exchange assembly of the thermal management system. The first electric valve and the second electric valve are arranged on the body and configured to communicate parts of the multiple internal flow channels to form multiple different thermal management circuits. The first electric valve and the second electric valve are configured to unblock/block and/or throttle the thermal management circuits to achieve at least one of the multiple preset thermal management modes.

IPC Classes  ?

  • B60H 1/00 - Heating, cooling or ventilating devices

63.

BATTERY PACK AND VEHICLE

      
Application Number 18373850
Status Pending
Filing Date 2023-09-27
First Publication Date 2024-01-25
Owner BYD COMPANY LIMITED (China)
Inventor
  • Fang, Cheng
  • E, Congji
  • Peng, Qingbo

Abstract

A battery pack, includes: an enclosure; a cell disposed in the enclosure; and a distribution box disposed in the enclosure. The enclosure includes a housing and a cover body, a side of the housing including a picking and placing opening, the cover body disposed on the side of the housing to cover the picking and placing opening, the distribution box located in the housing close to the picking and placing opening, and the housing, the cover body, and a metal plate of the distribution box surrounding the cell.

IPC Classes  ?

  • H01M 50/204 - Racks, modules or packs for multiple batteries or multiple cells
  • H01M 50/249 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
  • H01M 50/224 - Metals
  • H01M 10/617 - Types of temperature control for achieving uniformity or desired distribution of temperature

64.

VALVE MANIFOLD INTEGRATION MODULE FOR THERMAL MANAGEMENT SYSTEM, VEHICLE THERMAL MANAGEMENT SYSTEM, AND VEHICLE

      
Application Number 18373965
Status Pending
Filing Date 2023-09-28
First Publication Date 2024-01-25
Owner BYD COMPANY LIMITED (China)
Inventor
  • Jin, Wei
  • Li, Shibai
  • Xu, Min
  • Ye, Meijiao
  • Li, Yuzhong

Abstract

A valve manifold integration module for a thermal management system is provided. The thermal management system has multiple preset thermal management modes. The valve manifold integration module includes: multiple flow channels, disposed inside the valve manifold integration module; and a valve manifold, including multiple valves. The valves are disposed on the valve manifold integration module. The valves communicate with the flow channels. The multiple flow channels are communicated with each other via the valves to form fluid channels, to realize at least one of the thermal management modes.

IPC Classes  ?

  • B60H 1/00 - Heating, cooling or ventilating devices

65.

DC-DC CONVERTER, ON-BOARD CHARGER, AND ELECTRIC VEHICLE

      
Application Number 18375422
Status Pending
Filing Date 2023-09-29
First Publication Date 2024-01-25
Owner BYD COMPANY LIMITED (China)
Inventor Zhang, Xiaobin

Abstract

A DC-DC converter, an on-board charger, and an electric vehicle are disclosed. The DC-DC converter includes: a first adjustment module, a resonance module, a second adjustment module, a current detection module, and a controller. The current detection module is configured to detect a current signal of the resonance module; and the controller is configured to control the first adjustment module and the second adjustment module to reduce an output power when the current signal is greater than a current threshold. By directly detecting the current signal of the resonance module, a high precision and a faster response are achieved.

IPC Classes  ?

  • H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
  • G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
  • G01R 19/25 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
  • H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
  • H02M 1/42 - Circuits or arrangements for compensating for or adjusting power factor in converters or inverters

66.

DC-DC CONVERTER, ON-BOARD CHARGER, AND ELECTRIC VEHICLE

      
Application Number 18375432
Status Pending
Filing Date 2023-09-29
First Publication Date 2024-01-25
Owner BYD COMPANY LIMITED (China)
Inventor Zhang, Xiaobin

Abstract

A DC-DC converter, an on-board charger, and an electric vehicle are disclosed. The DCDC converter includes: a first adjustment module, a resonance module, a second adjustment module, a current detection module, and a controller. The current detection module is configured to detect a current signal of the resonance module; and the controller is configured to control the first adjustment module and the second adjustment module to reduce an output power when the current signal is greater than a current threshold. By directly detecting the current signal of the resonance module, a high precision and a faster response are achieved.

IPC Classes  ?

  • H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
  • G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
  • G01R 19/25 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
  • H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
  • H02M 1/42 - Circuits or arrangements for compensating for or adjusting power factor in converters or inverters

67.

BATTERY BOX AND BATTERY PACK COMPRISING SAME, AND VEHICLE

      
Application Number 18475550
Status Pending
Filing Date 2023-09-27
First Publication Date 2024-01-25
Owner BYD COMPANY LIMITED (China)
Inventor
  • Chen, Jiajia
  • Tang, Jianglong
  • Peng, Qingbo

Abstract

The present disclosure provides a battery box, a battery pack with the battery box, and a vehicle. The battery box includes a metal frame. Multiple accommodating cavities for accommodating cells are formed in the metal frame. An inner surface of the accommodating cavity is provided with an insulation coating. A thickness D of the insulation coating meets: The present disclosure provides a battery box, a battery pack with the battery box, and a vehicle. The battery box includes a metal frame. Multiple accommodating cavities for accommodating cells are formed in the metal frame. An inner surface of the accommodating cavity is provided with an insulation coating. A thickness D of the insulation coating meets: D = V × A p × I . The present disclosure provides a battery box, a battery pack with the battery box, and a vehicle. The battery box includes a metal frame. Multiple accommodating cavities for accommodating cells are formed in the metal frame. An inner surface of the accommodating cavity is provided with an insulation coating. A thickness D of the insulation coating meets: D = V × A p × I . I represents a test current, V represents a test voltage, and p represents a volume resistivity of the insulation coating; D represents a spraying thickness of the insulation coating; and A represents a total spraying area of the insulation coating.

IPC Classes  ?

  • H01M 50/231 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks having a layered structure
  • H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
  • H01M 50/224 - Metals
  • H01M 50/227 - Organic material
  • H01M 50/588 - Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries outside the batteries, e.g. incorrect connections of terminals or busbars
  • H01M 50/59 - Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
  • B60R 16/033 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems characterised by the use of electrical cells or batteries
  • C09D 175/04 - Polyurethanes

68.

BRAKE CALIPER AND VEHICLE HAVING THE SAME

      
Application Number 18477527
Status Pending
Filing Date 2023-09-28
First Publication Date 2024-01-25
Owner BYD COMPANY LIMITED (China)
Inventor
  • Feng, Weizhi
  • Peng, Xiaoren
  • Zhang, Xu
  • Li, Chuanbo
  • Zhao, Feilin

Abstract

A brake caliper and a vehicle having the same are provided. The brake caliper includes: a caliper body and an exhaust screw. A brake disc groove and a piston cylinder are constructed in the caliper body. A brake-fluid delivery oil line and an exhaust channel are constructed in a wall of the caliper body. The brake-fluid delivery oil line is in communication with the piston cylinder. The exhaust channel is in communication with an end of the brake-fluid delivery oil line in a length direction of the caliper body. An exhaust port is provided on a side of the caliper body in a thickness direction, and the exhaust port is in communication with the exhaust channel. An exhaust screw is mounted on the exhaust port on the side of the caliper body, to control opening or closing of the exhaust port.

IPC Classes  ?

69.

ELECTRIC VALVE

      
Application Number 18478717
Status Pending
Filing Date 2023-09-29
First Publication Date 2024-01-25
Owner BYD COMPANY LIMITED (China)
Inventor
  • Feng, Zhongbo
  • Jin, Ju
  • Wang, Fugang
  • Sha, Haijian

Abstract

The present disclosure provides an electric valve, including: a valve seat, the valve seat having an end surface and a slot; a valve body, a portion of the valve body penetrating in the valve seat, and another portion of the valve body protruding from the end surface; a coil portion sleeved over the valve body, the coil portion and the slot being respectively located on two sides of the end surface; and a connection portion, the connection portion including a connection member and a support member and a clamping member arranged on the connection member. The connection member is fixedly connected to the coil portion, the support member abuts against the end surface, and the clamping member is clamped with the slot.

IPC Classes  ?

  • F16K 31/06 - Operating means; Releasing devices magnetic using a magnet

70.

IGBT MODULE, MOTOR CONTROLLER, AND VEHICLE

      
Application Number 18372387
Status Pending
Filing Date 2023-09-25
First Publication Date 2024-01-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Yang, Guangming
  • Qi, Axi
  • Zhang, Xingchun
  • Yu, Yilong
  • Yu, Fengchuan

Abstract

An insulated gate bipolar transistor (IGBT) assembly includes a wafer; a first heat dissipation plate and a second heat dissipation plate being disposed on two surfaces of the wafer in a thickness direction of the wafer respectively, a plurality of first heat dissipation pins being disposed at an interval from each other on a surface of the first heat dissipation plate facing away from the second heat dissipation plate, and a plurality of second heat dissipation pins being disposed at an interval from each other on a surface of the second heat dissipation plate facing away from the first heat dissipation plate; and an insulating waterproof housing covering a portion of the wafer exposed from the first heat dissipation plate and the second heat dissipation plate.

IPC Classes  ?

  • H01L 29/739 - Transistor-type devices, i.e. able to continuously respond to applied control signals controlled by field effect
  • H01L 23/367 - Cooling facilitated by shape of device
  • H01L 23/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details of semiconductor or other solid state devices
  • H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
  • H01L 23/495 - Lead-frames

71.

RELAY

      
Application Number 18372470
Status Pending
Filing Date 2023-09-25
First Publication Date 2024-01-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Yao, Baotong
  • Shen, Qiang
  • Wang, Lujian

Abstract

A relay, includes a housing and multiple contact modules. An interior of the housing has an accommodation space, and each contact module includes a terminal assembly, a movable contact plate, and a drive assembly. The terminal assembly includes two terminals spaced apart and disposed on the housing. The terminal at least partially extends into the accommodation space to form a static contact. The movable contact plate is movably disposed in the accommodation space, and is configured to contact two static contacts to conduct the two terminals. The drive assembly includes a drive shaft and a drive unit that drives the drive shaft. The drive shaft is connected to the movable contact plate, and the drive unit is configured to drive the movable contact plate via the drive shaft. Multiple drive shafts corresponding to the multiple contact modules are disposed coaxially, and are relatively movable in their axial direction.

IPC Classes  ?

  • H01H 50/04 - Mounting complete relay or separate parts of relay on a base or inside a case
  • H01H 50/64 - Driving arrangements between movable part of magnetic circuit and contact
  • H01H 50/14 - Terminal arrangements
  • H01H 50/02 - Bases; Casings; Covers

72.

VEHICLE AND VEHICLE LOAD DISTRIBUTION IDENTIFICATION METHOD, APPARATUS, MEDIUM AND ELECTRONIC DEVICE

      
Application Number 18373164
Status Pending
Filing Date 2023-09-26
First Publication Date 2024-01-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Wang, Guanwen
  • Liao, Yinsheng
  • Zhang, Hongzhou

Abstract

A method for identifying vehicle load distribution includes the steps of: detecting a speed and longitudinal acceleration of the vehicle; when the longitudinal acceleration is less than an acceleration threshold, acquiring a driving force of the vehicle; obtaining, by a processor, a pitch angle of the vehicle according to the driving force and the vehicle speed; and obtaining, by the processor, load distribution of the vehicle according to the pitch angle.

IPC Classes  ?

73.

VEHICLE BODY FRAME AND VEHICLE WITH SAME

      
Application Number 18373204
Status Pending
Filing Date 2023-09-26
First Publication Date 2024-01-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Quan, Yi
  • Zhong, Hao
  • Yan, Junfei
  • Wang, Yu
  • Liu, Tengyong

Abstract

A vehicle body frame includes: a front transverse beam, a first front longitudinal beam, and a second front longitudinal beam. The first front longitudinal beam and the second front longitudinal beam are disposed at an interval along a left-and-right direction, each of the first front longitudinal beam and the second front longitudinal beam includes a longitudinal-beam rear-section front portion and a longitudinal-beam rear-section rear portion connected to each other, the longitudinal-beam rear-section front portion is connected to the front transverse beam, and an upper surface of the longitudinal-beam rear-section front portion and an upper surface of the front transverse beam are located in a same plane.

IPC Classes  ?

  • B62D 21/15 - Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
  • B62D 21/03 - Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members transverse members providing body support
  • B62D 25/04 - Door pillars
  • B62D 25/14 - Dashboards as superstructure sub-unit
  • B62D 25/20 - Floors or bottom sub-units

74.

VEHICLE AND THERMAL MANAGEMENT CONTROL METHOD AND DEVICE THEREFOR, AND STORAGE MEDIUM

      
Application Number 18373221
Status Pending
Filing Date 2023-09-26
First Publication Date 2024-01-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Zhu, Futang
  • Wang, Chunsheng
  • Huang, Qiuping

Abstract

A method for controlling thermal management of a vehicle is provided. The vehicle includes an engine and a thermal management system. The thermal management system includes a water pump. The engine and the water pump are connected to form a first cooling circulation. The method includes: controlling the water pump according to a current temperature of the engine, a total engine power, and a current vehicle speed. In response to that a current temperature of the engine is less than or equal to a temperature threshold, a total engine power is greater than or equal to a power threshold, and a current vehicle speed is less than or equal to a vehicle speed threshold, controlling the water pump to periodically switch between a start state and a stop state.

IPC Classes  ?

  • F01P 7/16 - Controlling of coolant flow the coolant being liquid by thermostatic control
  • F01P 11/18 - Indicating devices; Other safety devices concerning coolant pressure, coolant flow, or liquid-coolant level

75.

THERMAL MANAGEMENT AND CONTROL METHOD AND DEVICE, STORAGE MEDIUM, AND VEHICLE

      
Application Number 18373233
Status Pending
Filing Date 2023-09-26
First Publication Date 2024-01-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Zhu, Futang
  • Wang, Chunsheng
  • Huang, Qiuping

Abstract

A thermal management and control method includes: determining a total target amount of to-be-dissipated heat of an engine based on a minimum engine fuel consumption lookup table when a current temperature of the engine is greater than or equal to a temperature threshold and an opening degree of the thermostat is greater than or equal to an opening degree threshold; querying a minimum thermal management system power consumption lookup table based on the total target amount of to-be-dissipated heat, an air inlet speed of an air-cooling radiator, and a current ambient temperature, and determining a target rotation speed of a water pump and a target rotation speed of the air-cooling radiator; and controlling a rotation speed of the water pump to be the target rotation speed of the water pump, and controlling a rotation speed of the air-cooling radiator to be the target rotation speed of the air-cooling radiator.

IPC Classes  ?

  • F01P 7/16 - Controlling of coolant flow the coolant being liquid by thermostatic control
  • F01P 5/10 - Pumping liquid coolant; Arrangements of coolant pumps
  • F01P 5/02 - Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers

76.

VEHICLE CONTROLLER AND VEHICLE HAVING SAME

      
Application Number 18373239
Status Pending
Filing Date 2023-09-26
First Publication Date 2024-01-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Qi, Axi
  • Zhang, Xingchun
  • Yu, Fengchuan
  • Zeng, Qinghui

Abstract

A vehicle controller includes: a control box having a first outer surface and a second outer surface disposed opposite to each other in a thickness direction of the control box, the first outer surface including a control cooling water channel, which includes an Insulated Gate Bipolar Transistor (IGBT) cooling layer, a power supply cooling layer, and a transition section, and the IGBT cooling layer and the power supply cooling layer stacked in the thickness direction of the control box and communicated to each other by using the transition section; an IGBT module mounted on the first outer surface and extending into the IGBT cooling layer and being cooled by coolant in the IGBT cooling layer; and a power supply module mounted on the second outer surface and the power supply module adjacent to the power supply cooling layer and cooled by coolant in the power supply cooling layer.

IPC Classes  ?

  • H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
  • H05K 5/03 - Covers
  • H05K 5/02 - Casings, cabinets or drawers for electric apparatus - Details
  • H05K 9/00 - Screening of apparatus or components against electric or magnetic fields

77.

MOTOR CONTROLLER AND VEHICLE WITH THE SAME

      
Application Number 18373531
Status Pending
Filing Date 2023-09-27
First Publication Date 2024-01-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Yu, Fengchuan
  • Zhang, Xingchun
  • Fan, Yanjun
  • Yang, Guangming
  • Qi, Axi

Abstract

A motor controller includes: a box including a first housing including a cooling chamber, and an insert-in hole and a protrude-out hole disposed on two opposite sidewalls of the cooling chamber; an IGBT module inserted into the cooling chamber, two opposite side surfaces of the IGBT module in a thickness direction and an inner wall of the cooling chamber forming liquid passing gaps, two ends of the IGBT module sealed with the first housing to seal the insert-in hole and the protrude-out hole; a control board and a drive board disposed in the box, the control board located on a surface of the drive board facing away from the IGBT module, and the drive board connected to the control board and the IGBT module; and a capacitor module located on a surface of the first housing facing away from the drive board and connected to the IGBT module.

IPC Classes  ?

  • H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
  • H05K 7/14 - Mounting supporting structure in casing or on frame or rack
  • H05K 5/03 - Covers

78.

COATING MEMBER AND PREPARATION METHOD THEREOF, HOUSING, AND ELECTRONIC PRODUCT

      
Application Number 18373842
Status Pending
Filing Date 2023-09-27
First Publication Date 2024-01-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Yu, Yuebin
  • Xu, Jinbao
  • Wang, Xiangwei

Abstract

An apparatus includes a substrate, an anodic oxidation layer, and a base layer. The anodic oxidation layer is disposed on a surface of the substrate, and the base layer is disposed on a surface of the anodic oxidation layer. The base layer includes a first base layer and a second base layer stacked on the anodic oxidation layer, and each of the first base layer and the second base layer includes a deposition layer of a first metal. An average grain size of the first base layer is less than an average grain size of the second base layer. The anodic oxidation layer includes a nanopore structure, and gains of the first base layer is at least partially embedded in the nanopore structure of the anodic oxidation layer.

IPC Classes  ?

  • C23C 14/34 - Sputtering
  • C23C 14/04 - Coating on selected surface areas, e.g. using masks
  • C23C 14/16 - Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
  • C23C 14/58 - After-treatment
  • C23C 14/00 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material

79.

BATTERY HOUSING, BATTERY, AND ELECTRONIC DEVICE

      
Application Number 18373963
Status Pending
Filing Date 2023-09-28
First Publication Date 2024-01-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Tang, Guosheng
  • Liang, Liwei
  • Hu, Shumin
  • Zhang, Jian
  • Ouyang, Jinzhong

Abstract

A battery housing includes an upper housing and a lower housing. The lower housing includes a bottom portion and first side walls, the first side walls extend upward from edges of the bottom portion, the bottom portion and the first side walls enclose a cavity, and at least one of the first side walls having a first flange on an end of the first side wall away from the bottom portion. The upper housing is located above the lower housing, the upper housing includes a top portion and a second flange, a second concave structure is disposed at a joint between the second flange and the top portion, the first flange is in contact with the second flange by welding to obtain melt, and the melt is disposed in the second concave structure.

IPC Classes  ?

  • H01M 50/202 - Casings or frames around the primary casing of a single cell or a single battery
  • H01M 50/271 - Lids or covers for the racks or secondary casings
  • H01M 50/224 - Metals

80.

BODY FRAME JOINT AND VEHICLE HAVING SAME

      
Application Number 18473893
Status Pending
Filing Date 2023-09-25
First Publication Date 2024-01-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Peng, Wang
  • Huang, Fengshou
  • Wang, Zhiqiang
  • Chen, Zhen

Abstract

A body frame and a vehicle having the same are provided. The body frame includes: a transverse beam, provided with a transverse sliding groove; a longitudinal beam, connected with the transverse beam and provided with a longitudinal sliding groove; and a joint, disposed at a junction of the transverse beam and the longitudinal beam and mounted to the transverse beam by a transverse rivet and to the longitudinal beam by a longitudinal rivet. The transverse rivet is slidably mated with the transverse sliding groove, and the longitudinal rivet is slidably mated with the longitudinal sliding groove.

IPC Classes  ?

  • B62D 27/02 - Connections between superstructure sub-units rigid
  • B62D 25/02 - Side panels
  • B62D 25/04 - Door pillars
  • B62D 27/06 - Connections between superstructure sub-units readily releasable
  • B62D 31/02 - Superstructures for passenger vehicles for carrying large numbers of passengers, e.g. omnibus

81.

BOX BODY OF POWER BATTERY, POWER BATTERY, ELECTRIC DEVICE, AND TEMPERATURE DIFFERENCE SELF-ADJUSTING COLD PLATE

      
Application Number 18475519
Status Pending
Filing Date 2023-09-27
First Publication Date 2024-01-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Tang, Jianglong
  • Guo, Shu
  • Lu, Peng
  • Li, Xin

Abstract

A power battery has a box. The box includes a tray, a liquid cooling plate, and a cold expansion portion. An accommodating space for accommodating cells is provided in the tray. The liquid cooling plate is connected to the tray at an outer surface of at least one of the top and bottom of the tray. A flow channel through which a cooling liquid flows is defined jointly by the liquid cooling plate and the outer surface of the tray. The cold expansion portion is arranged in the flow channel, and is connected to at least one of the tray and the liquid cooling plate. A liquid-passing cross-sectional area of the flow channel corresponding to an expansion region is reduced when the cold expansion portion expands.

IPC Classes  ?

  • H01M 10/6568 - Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
  • H01M 10/6556 - Solid parts with flow channel passages or pipes for heat exchange
  • H01M 10/651 - Means for temperature control structurally associated with the cells characterised by parameters specified by a numeric value or mathematical formula, e.g. ratios, sizes or concentrations

82.

ASSEMBLING METHOD FOR BATTERY PACK, BATTERY PACK AND VEHICLE

      
Application Number 18475769
Status Pending
Filing Date 2023-09-27
First Publication Date 2024-01-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Lu, Peng
  • Peng, Qingbo
  • Lu, Zhipei

Abstract

Provided are a battery pack using a method for assembling a battery pack and a vehicle. The battery pack includes a box and battery modules. The box is provided with cavities inside. The battery module includes foam and multiple cells. The foam is arranged between adjacent cells. The method for assembling a battery pack includes the following steps: the battery module is loaded into an insulating bag; the insulating bag is vacuumized so that the foam is compressed to reduce the volume of the battery module; and after the battery module of the reduced volume is inserted into the cavity, a vacuum state is released and positive and negative electrodes of the battery module are exposed.

IPC Classes  ?

  • H01M 10/04 - Construction or manufacture in general
  • H01M 50/233 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
  • H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells

83.

COMPOSITE TEMPERATURE CONTROL PLATE AND BATTERY PACK

      
Application Number 18476657
Status Pending
Filing Date 2023-09-28
First Publication Date 2024-01-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • You, Yueqiu
  • Wang, Xiao
  • Wu, Yanfeng
  • Zheng, Weixin
  • Lu, Zhipei

Abstract

The present disclosure relates to a composite temperature control plate and a battery pack. The composite temperature control plate includes a temperature control layer and a protective layer. The temperature control layer is configured to lower or raise a temperature of the battery pack. The protective layer is laminated and fixed on the temperature control layer. The protective layer includes a heat insulating layer. The heat insulating layer is made of a heat insulating material. The protective layer includes a mounting portion extending at least to an periphery of the temperature control layer. The mounting portion is configured to connect with outside.

IPC Classes  ?

  • H01M 10/658 - Means for temperature control structurally associated with the cells by thermal insulation or shielding
  • H01M 10/6556 - Solid parts with flow channel passages or pipes for heat exchange
  • H01M 10/613 - Cooling or keeping cold
  • H01M 10/615 - Heating or keeping warm
  • H01M 10/6567 - Liquids

84.

CLUTCH DEVICE AND VEHICLE STEERING SYSTEM AND VEHICLE HAVING THE SAME

      
Application Number 18372523
Status Pending
Filing Date 2023-09-25
First Publication Date 2024-01-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Li, Yong
  • Hu, Sihao
  • Huang, Qi
  • Deng, Qicheng
  • Zhao, Min

Abstract

A clutch device, includes: a first transmission member and a second transmission member, the first transmission member is configured to move between a jointed position and a disjointed position, when the first transmission member is in the jointed position, the first transmission member is jointed with the second transmission member to transfer torque, and when the first transmission member is in the disjointed position, the first transmission member is disjointed from the second transmission member to stop transferring the torque; and a driving mechanism, including a driving device and a driven member and connected with the driving device and the first transmission member in transmission, the driving device drives the driven member to move to drive the first transmission member to move between the jointed position and the disjointed position, and a direction of movement of the driven member is parallel to a direction of movement of the first transmission member.

IPC Classes  ?

  • B62D 5/04 - Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear

85.

INTEGRATED THERMAL MANAGEMENT SYSTEM, VEHICLE, AND THERMAL MANAGEMENT CONTROL METHOD

      
Application Number 18373721
Status Pending
Filing Date 2023-09-27
First Publication Date 2024-01-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Lian, Yubo
  • Ling, Heping
  • Zhong, Yilin
  • Song, Gan
  • Zhang, Jingke

Abstract

An integrated thermal management system, includes: a heat pump subsystem that includes a heat pump subsystem detector configured to detect heat pump state information of the heat pump subsystem; a cooling subsystem of a high-voltage system is configured to exchange heat between the heat pump subsystem and a high-voltage system of a vehicle; a battery detector is configured to detect battery state information of a vehicle battery; an user interface is configured to receive setting information of a thermal demand of a passenger compartment of a vehicle; and a controller is configured to determine a thermal management demand of the vehicle battery according to the battery state information, determine a thermal management demand of the passenger compartment according to the setting information, and determine a heat supplementation demand according to the thermal management demand of the vehicle battery, the thermal management demand of the passenger compartment, and the heat pump state information.

IPC Classes  ?

  • B60H 1/00 - Heating, cooling or ventilating devices
  • B60L 58/26 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
  • B60L 53/60 - Monitoring or controlling charging stations
  • B60L 58/12 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]

86.

BATTERY PACK

      
Application Number 18373794
Status Pending
Filing Date 2023-09-27
First Publication Date 2024-01-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Xiong, Bojun
  • Peng, Qingbo
  • Yi, Ning

Abstract

A battery pack includes: a battery box having a distribution cavity; a distribution box disposed in the distribution cavity; the distribution box including a panel; the panel having a first flow channel and a refrigerant inlet/outlet joint in communication with the first flow channel; and a thermoregulation member connected with the battery box; the thermoregulation member having a second flow channel in communication with the first flow channel.

IPC Classes  ?

  • H01M 10/6556 - Solid parts with flow channel passages or pipes for heat exchange
  • H01M 10/613 - Cooling or keeping cold
  • H01M 10/625 - Vehicles
  • H01M 10/6554 - Rods or plates
  • H01M 10/6568 - Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
  • H01M 50/271 - Lids or covers for the racks or secondary casings
  • H01M 50/242 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
  • H01M 10/615 - Heating or keeping warm
  • H01M 10/657 - Means for temperature control structurally associated with the cells by electric or electromagnetic means
  • H01M 50/249 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains

87.

METHOD, APPARATUS, AND DEVICE FOR PREDICTING CAPACITY OF POWER BATTERY

      
Application Number 18373821
Status Pending
Filing Date 2023-09-27
First Publication Date 2024-01-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Deng, Linwang
  • Feng, Tianyu
  • Zhang, Pengqing
  • Li, Xiaoqian

Abstract

A method for obtaining a capacity of a power battery includes: collecting, by sensors, sample data of the power battery; dividing, by a processor, the sample data into multiple categories, each of the categories having a corresponding aging model and a feature identifier, the feature identifier identifying features of sample data of a corresponding category, and the aging model being obtained by: determining a fitting relationship in the aging model, and determining parameters in the fitting relationship according to sample data of a corresponding type of the aging model; acquiring, by the processor, battery state parameters of the power battery; selecting, by the processor, an aging model from multiple aging models according to the battery state parameters; and inputting, by the processor, the battery state parameters into the selected aging model to obtain the capacity of the power battery.

IPC Classes  ?

  • G01R 31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables
  • G01R 31/392 - Determining battery ageing or deterioration, e.g. state of health
  • G01R 31/387 - Determining ampere-hour charge capacity or SoC
  • G01R 31/374 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with means for correcting the measurement for temperature or ageing

88.

VALVE SET INTEGRATED MODULE, VEHICLE THERMAL MANAGEMENT SYSTEM, AND VEHICLE

      
Application Number 18373959
Status Pending
Filing Date 2023-09-27
First Publication Date 2024-01-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Jin, Wei
  • Xu, Min
  • Li, Shibai
  • Ye, Meijiao

Abstract

An integrated valve module includes a base and a valve set disposed on the base and including a first switch valve, a second switch valve, and a first expansion valve. An indoor condenser outlet interface configured to connect with an outlet of an indoor condenser and communicate with an inlet of the first switch valve, an outdoor heat exchanger outlet interface configured to connect with an outlet of an outdoor heat exchanger and communicate with an inlet of a second switch valve, and a battery pack heat exchanger inlet interface configured to connected with a refrigerant inlet of a battery pack heat exchanger and communicate with an outlet of the first expansion valve, are disposed on the base. An outlet of the first switch valve, an inlet of the first expansion valve, and an outlet of the second switch valve communicate with a first flow channel disposed on the base.

IPC Classes  ?

  • B60H 1/00 - Heating, cooling or ventilating devices

89.

VALVE SET INTEGRATED MODULE, VEHICLE THERMAL MANAGEMENT SYSTEM, AND VEHICLE

      
Application Number 18374204
Status Pending
Filing Date 2023-09-28
First Publication Date 2024-01-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Li, Shibai
  • Jin, Wei
  • Xu, Min
  • Ye, Meijiao
  • Li, Yuzhong

Abstract

An integrated valve module includes a body including first flow channel that includes a first branch channel; an interface disposed on the body and including an indoor condenser outlet interface, an outdoor heat exchanger inlet interface, and a first interface of a motor heat exchanger; and a valve set disposed on the body and including a first electric valve and a second electric valve. A first port of the first electric valve is connected with the indoor condenser outlet interface. A second port of the second electric valve is connected with the outdoor heat exchanger inlet interface, and a third port thereof is connected with the first interface of the motor heat exchanger. A first opening communicates with a second port and a third port of the first electric valve, and a second opening communicates with a first port of the second electric valve, are disposed on the first branch channel.

IPC Classes  ?

  • B60H 1/00 - Heating, cooling or ventilating devices

90.

LITHIUM ION BATTERY AND POWERED VEHICLE

      
Application Number 18473996
Status Pending
Filing Date 2023-09-25
First Publication Date 2024-01-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Chen, Na
  • Deng, Xuanwei
  • Pan, Yi

Abstract

A positive electrode plate of a lithium-ion battery includes a positive electrode material layer provided on a positive electrode current collector. A negative electrode plate of the lithium-ion battery includes a graphite negative electrode material layer provided on a negative electrode current collector. The positive electrode material layer includes a positive electrode active material consisting of a lithium manganese iron phosphate material, a lithium iron phosphate material and a ternary material with a mass ratio of A1+A2+A3=1. α=(M4×η4×Y)/[M1×η1×A1+M2×η2×A2+M3×η3×A3)×X], β=[M1×(1−η1)×A1+M2×(1−η2)×A2+M3×(1−η3)×A3]×X/[M4×(1−η4)×Y], 1.03≤α≤1.15, and 0.55≤β≤1.5, where X is the coating amount of the positive electrode active material on the positive electrode plate, and Y is the coating amount of graphite on the negative electrode plate.

IPC Classes  ?

  • H01M 4/36 - Selection of substances as active materials, active masses, active liquids
  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
  • H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
  • H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
  • H01M 4/136 - Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
  • H01M 4/58 - Selection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
  • H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
  • H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy

91.

VALVE GROUP INTEGRATION MODULE AND VEHICLE WITH THE SAME

      
Application Number 18476061
Status Pending
Filing Date 2023-09-27
First Publication Date 2024-01-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Li, Shibai
  • Xu, Min
  • Jin, Wei
  • Ye, Meijiao
  • Zhang, Jianjun

Abstract

A valve group integration module and a vehicle are provided. The valve group integration module includes a body and a valve group. The body includes a first branch body and a second branch body. The first branch body includes a first connecting surface; the second branch body includes a second connecting surface; and the first connecting surface is hermetically connected to the second connecting surface. Multiple internal flow channels are arranged inside the first branch body. Furthermore, at least one groove is arranged on the first connecting surface of the first branch body. The second connecting surface and each groove on the first branch body form an external flow channel. The valve group includes multiple valves. The valves are selectively communicated to the internal flow channels and the external flow channel to form different fluid flow channels.

IPC Classes  ?

  • B60H 1/00 - Heating, cooling or ventilating devices

92.

METHOD FOR PREPARING POSITIVE ELECTRODE PLATE, AND POSITIVE ELECTRODE PLATE AND BATTERY HAVING SAME

      
Application Number 18476694
Status Pending
Filing Date 2023-09-28
First Publication Date 2024-01-18
Owner BYD COMPANY LIMITED (China)
Inventor
  • Jiang, Xinjun
  • Zhang, Baosheng

Abstract

A method for preparing a positive electrode plate, a positive electrode plate, and a battery including same. The method for preparing a positive electrode plate includes: providing a current collector, the current collector including a coating region and a non-coating region; coating a positive-electrode active material on the coating region of the current collector; cutting the non-coating region at intervals along a length direction of the non-coating region to form a tab between every two adjacent cutting positions, an edge of a region of the positive-electrode active material corresponding to the cutting position being cut off at each cutting; and coating an electrically insulating adhesive on an edge of the positive-electrode active material between every two adjacent cutting positions.

IPC Classes  ?

  • H01M 4/139 - Processes of manufacture
  • H01M 4/04 - Processes of manufacture in general
  • H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
  • H01M 50/534 - Electrode connections inside a battery casing characterised by the material of the leads or tabs

93.

VEHICLE CONTROLLER AND VEHICLE WITH SAME

      
Application Number 18372218
Status Pending
Filing Date 2023-09-25
First Publication Date 2024-01-11
Owner BYD COMPANY LIMITED (China)
Inventor
  • Yu, Fengchuan
  • Zhang, Xingchun
  • Fan, Yanjun
  • Zeng, Qinghui

Abstract

A vehicle controller includes: a box; a control board mounted in the box and including a communication module, a vehicle control module, a charge control module, and a motor control module, and the vehicle control module controlling operations of a vehicle according to signals of the communication module; a driver board mounted in the box, the control board being connected to the driver board, and the motor control module controlling a motor of the vehicle through the driver board; and an on-off switch mounted in the box and connected to the control board, the on-off switch having an input end and an output end, the charge control module controlling on-off of the input end and the output end, the output end being connected to an energy storage member of the vehicle, and the input end being connected to a charging cable of the energy storage member.

IPC Classes  ?

  • H05K 7/14 - Mounting supporting structure in casing or on frame or rack
  • H02M 7/00 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
  • H02M 7/537 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
  • H05K 9/00 - Screening of apparatus or components against electric or magnetic fields
  • H05K 1/18 - Printed circuits structurally associated with non-printed electric components
  • H05K 5/03 - Covers
  • B60R 16/023 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for transmission of signals between vehicle parts or subsystems
  • B60R 16/033 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems characterised by the use of electrical cells or batteries

94.

SEMICONDUCTOR REFRIGERATION PLATE AND MANUFACTURING METHOD THEREFOR

      
Application Number 18002235
Status Pending
Filing Date 2021-06-07
First Publication Date 2024-01-11
Owner BYD COMPANY LIMITED (China)
Inventor
  • Li, Yonghui
  • Li, Junqiao
  • Zhou, Wei

Abstract

A semiconductor refrigeration chip and a method for manufacturing same are provided. The method includes: providing a semiconductor refrigeration assembly, where the semiconductor refrigeration assembly includes a first insulating and heat-conducting layer and a second insulating and heat-conducting layer provided opposite to each other and a semiconductor layer arranged between the first insulating and heat-conducting layer and the second insulating and heat-conducting layer, a side of the semiconductor refrigeration assembly provided with the first insulating and heat-conducting layer is a cold end, and a side of the semiconductor refrigeration assembly provided with the second insulating and heat-conducting layer is a hot end; and forming a packaging structure, and causing the packaging structure to cover a side wall of the semiconductor refrigeration assembly and define a first groove with the first insulating and heat-conducting layer, to obtain the semiconductor refrigeration chip.

IPC Classes  ?

  • F25B 21/02 - Machines, plants or systems, using electric or magnetic effects using Nernst-Ettinghausen effect
  • H01L 23/38 - Cooling arrangements using the Peltier effect
  • H10N 19/00 - Integrated devices, or assemblies of multiple devices, comprising at least one thermoelectric or thermomagnetic element covered by groups

95.

VEHICLE, HYDRAULIC SYSTEM FOR POWERTRAIN OF VEHICLE, AND CONTROL METHOD THEREOF

      
Application Number 18372249
Status Pending
Filing Date 2023-09-25
First Publication Date 2024-01-11
Owner BYD COMPANY LIMITED (China)
Inventor
  • Zhu, Futang
  • Zhang, Hui
  • Wang, Chunsheng

Abstract

A hydraulic system for a powertrain of a vehicle, the powertrain includes a drive motor, a generator, a clutch, or a transmission system. The hydraulic system includes: an oil tank; a main cooling oil path, a first end of the main cooling oil path being communicated with the oil tank, where a first oil pump and a cooler are disposed on the main cooling oil path; and multiple cooling branches, the cooling branches connected to a second end of the main cooling oil path, the first oil pump configured to pump an oil in the oil tank to the cooling branches, a control element disposed on each of the cooling branches, the control element configured to control opening and closing of a corresponding cooling branch, and the cooling branches configured to cool one or more of the drive motor, the generator, the clutch, and the transmission system.

IPC Classes  ?

  • B60K 11/02 - Arrangement in connection with cooling of propulsion units with liquid cooling
  • F01M 5/00 - Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting

96.

VEHICLE PARKING CONTROL METHOD AND APPARATUS

      
Application Number 18372364
Status Pending
Filing Date 2023-09-25
First Publication Date 2024-01-11
Owner BYD COMPANY LIMITED (China)
Inventor
  • Wan, Qiang
  • Wang, Lu
  • Tan, Zhicheng

Abstract

A method for controlling vehicle parking, includes: obtaining, by a processor, a current vehicle speed and a current vehicle control level of a vehicle; obtaining, by the processor, a target vehicle speed of the vehicle, and obtaining a target vehicle control level of the vehicle according to the current vehicle control level; obtaining, by the processor, a first vehicle control level according to the current vehicle speed, the target vehicle speed, the current vehicle control level, and the target vehicle control level; and controlling, by the processor, the vehicle to run according to the first vehicle control level.

IPC Classes  ?

  • B61L 17/02 - Switching systems for classification yards - Details, e.g. indicating degree of track filling
  • B61C 17/00 - LOCOMOTIVES; MOTOR RAILCARS - Details or accessories not otherwise provided for; Use of control gear and control systems

97.

HOUSING, BATTERY, AND ELECTRONIC DEVICE

      
Application Number 18373251
Status Pending
Filing Date 2023-09-26
First Publication Date 2024-01-11
Owner BYD COMPANY LIMITED (China)
Inventor
  • Wang, Bing
  • Liu, Wei
  • Zhang, Ke
  • Hu, Haibo

Abstract

A housing is configured to accommodate an electrode core. The housing includes a peripheral wall and a first cover plate. The peripheral wall includes a first opening. An edge portion is disposed on a periphery of the first cover plate, and the edge portion is configured to melt to form a melted edge around the periphery of the first cover plate. The first cover plate is configured to be bonded with the peripheral wall through the melted edge to close the first opening.

IPC Classes  ?

  • H01M 50/169 - Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
  • H01M 50/103 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
  • H01M 50/119 - Metals
  • H01M 50/159 - Metals
  • H01M 50/15 - Lids or covers characterised by their shape for prismatic or rectangular cells

98.

BATTERY HOUSING, BATTERY, AND ELECTRONIC DEVICE

      
Application Number 18472532
Status Pending
Filing Date 2023-09-22
First Publication Date 2024-01-11
Owner BYD COMPANY LIMITED (China)
Inventor
  • Tang, Guosheng
  • Liang, Liwei
  • Hu, Shumin
  • Zhang, Jian
  • Ouyang, Jinzhong

Abstract

A battery housing includes a first housing and a second housing. An accommodating space with an opening is defined by a bottom plate, two first side plates and two second side plates of the first housing. The second housing includes a body, and two first extending plates and two second extending plates arranged on a peripheral edge of the body. An avoiding region is formed on one second side plate. In a first direction, a width of the second extending plate corresponding to the second side plate provided with the avoiding region is smaller than or equal to a width of the avoiding region, and additionally, a width of the two first extending plates is greater than a width of the second extending plate. The second housing covers the opening of the first housing, and the two first extending plates and the two first side plates are fixedly connected.

IPC Classes  ?

  • H01M 50/103 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
  • H01M 50/15 - Lids or covers characterised by their shape for prismatic or rectangular cells

99.

SHOCK ABSORPTION PEDAL WITH ADJUSTABLE RESISTANCE

      
Application Number 18470033
Status Pending
Filing Date 2023-09-19
First Publication Date 2024-01-04
Owner BYD COMPANY LIMITED (China)
Inventor
  • Xiao, Dongliang
  • Lu, Longwen

Abstract

A shock absorption pedal with adjustable resistance includes: a fixed guide rail, fixedly connected to a vehicle body; a sliding frame, arranged in a groove of the fixed guide rail, and movable vertically along the fixed guide rail; and a support plate, fixedly connected to the sliding frame. A displacement regulating mechanism is arranged on the fixed guide rail. One end of the displacement regulating mechanism is arranged outside the groove of the fixed guide rail, and another end of the displacement regulating mechanism is connected to one end of a shock absorption spring. Another end of the shock absorption spring is fixedly connected to the sliding frame. A position of the sliding frame is regulable by the displacement regulating mechanism, to adjust a length of the shock absorption spring.

IPC Classes  ?

  • B66F 9/075 - Constructional features or details
  • F16F 15/04 - Suppression of vibrations of non-rotating, e.g. reciprocating, systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating system using elastic means

100.

NEGATIVE ELECTRODE MATERIAL, PREPARATION METHOD THEREOF, AND ALL-SOLID-STATE LITHIUM BATTERY

      
Application Number 18463954
Status Pending
Filing Date 2023-09-08
First Publication Date 2023-12-28
Owner BYD COMPANY LIMITED (China)
Inventor
  • Li, Biao
  • Guo, Zizhu
  • Zhang, Tong
  • Shi, Zhuo

Abstract

The present disclosure provides a negative electrode material, a preparation method thereof, and an all-solid-state lithium battery. The negative electrode material includes a core and an amorphous lithium-silicon alloy layer cladding the core. The core includes a glassy solid electrolyte and amorphous lithium-silicon alloy particles dispersed in the glassy solid electrolyte. The material of the amorphous lithium-silicon alloy particles is LixSi, 0

IPC Classes  ?

  • H01M 4/36 - Selection of substances as active materials, active masses, active liquids
  • C22C 24/00 - Alloys based on an alkali or an alkaline earth metal
  • B22F 1/08 - Metallic powder characterised by particles having an amorphous microstructure
  • B22F 1/18 - Non-metallic particles coated with metal
  • B22F 9/00 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor
  • B22F 9/04 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
  • H01M 4/134 - Electrodes based on metals, Si or alloys
  • H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
  • H01M 10/0562 - Solid materials
  • H01M 10/052 - Li-accumulators
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