A power tool includes: a motor including a rotor and multiple phases of stator windings; and a control circuit configured to control the working state of the motor. The control circuit includes: a driver circuit including multiple switching elements; a controller electrically connected to at least the driver circuit and capable of outputting a control signal to change the conducting states of the multiple switching elements in the driver circuit; and a parameter detection module configured to detect a working parameter of the motor. In response to a braking signal, the controller sets an input parameter of the control circuit according to a preset parameter and the working parameter to control output power of the motor and/or output torque of the motor, thereby controlling the motor to brake.
H02P 3/18 - Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor
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
A support table suitable for a storage box. The support table comprises: at least one supporting member (41), which is configured to be interlocked to the storage box (10); and a mounting assembly (43), which is connected to the supporting member (41). The mounting assembly (43) comprises a first connecting member (435), which is connected to the supporting member (41). The supporting member (41) has at least a first state and a second state relative to the first connecting member (435); when the supporting member (41) is in the first state, the supporting member (41) is at a first position; and when the supporting member (41) is in the second state, the supporting member (41) is at a second position.
B65D 25/24 - External fittings for spacing bases of containers from supporting surfaces, e.g. legs
B65D 6/08 - Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal, plastics, wood or substitutes therefor of skeleton or like apertured construction, e.g. made of interwoven or intermeshing flexible material
B65D 21/028 - Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together for stacking containers lying on their sides, or for joining containers side-by-side, by means which are lateral with respect to the normal orientation of the containers with interconnecting means forming part of the containers, e.g. dovetails, snap connectors or hook elements
B65D 21/024 - Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together for stacking containers lying on their sides, or for joining containers side-by-side, by means which are lateral with respect to the normal orientation of the containers
B65D 21/032 - Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together for stacking containers one upon another in the upright or upside down position, e.g. with vertically projecting elements or recesses
A ride-on mowing device, comprising: a frame (91); a cutting assembly (10); a traveling assembly (93); a main control circuit (952), which is electrically connected to the cutting assembly and the traveling assembly; and an operation member, which is electrically connected to the main control circuit and is configured to control the forward or backward state of the ride-on mowing device, wherein the operation member has a forward gear, a neutral gear and a backward gear, and when the operation member is operated to experience at least two gears, the operation member is configured to control the ride-on mowing device to switch between the forward state and the backward state; and the main control circuit is configured to acquire a device parameter of the ride-on mowing device during a traveling process, and when the operation member is operated to execute the switching between the forward state and the backward state, control, on the basis of the acquired device parameter, the ride-on mowing device to stop traveling.
A01D 34/64 - Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
An impact tool includes a housing; an electric motor including a motor shaft rotating about a first axis; an output shaft used for outputting power and rotating about an output axis; and an impact assembly used for providing an impact force for the output shaft and including a main shaft, where the main shaft is driven by the motor shaft to rotate about an axis of the main shaft. The housing includes a first housing for accommodating at least part of the main shaft, and a support portion that forms sliding friction with the main shaft in the direction of rotation of the main shaft is formed on or connected to an inner wall of the first housing.
B25B 21/02 - Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose with means for imparting impact to screwdriver blade or nut socket
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
5.
CHAINSAW AND METHODS FOR DETERMINING AND RELEASING A JAMMED STATE OF THE CHAINSAW
A chainsaw includes a chain, a liquid pump assembly, a motor, and a controller. The chain is used for implementing a cutting operation. The liquid pump assembly includes a liquid pump and a motor. The liquid pump is used for releasing a liquid for lubricating or cooling the chain. The motor is used for at least driving the liquid pump to operate. The controller is electrically connected to at least the motor. The controller is configured to, when the liquid pump is in the jammed state, control the liquid pump assembly to enter a throttling mode in which a supplied amount of the liquid is reduced, and when the liquid pump exits the jammed state, control the liquid pump assembly to exit the throttling mode. Technical solutions provided by the present application can determine and release the jammed state of the chainsaw.
A power tool includes an operating switch; a motor that is connected to the operating switch and capable of starting in response to the conduction of the operating switch and braking in response to the disconnection of the operating switch; and a control circuit configured to control a working state of the motor. The control circuit includes a driver circuit including multiple switching elements; a controller that is coupled to the motor and capable of outputting a first control signal to control the motor to start; and a parameter detection unit for detecting a working parameter of the motor. The controller is configured to, in response to the operating switch being turned on again within a preset time after being turned off, acquire the working parameter and set a duty cycle of a second control signal according to the working parameter to control the motor to restart.
A battery pack includes: a housing formed with multiple accommodating cavities; and multiple cells, where a cell has an outer peripheral surface, and the distance between at least part of the outer peripheral surface and the intra-cavity wall surface of a respective accommodating cavity is greater than or equal to 0 mm and less than or equal to 1 mm. The outer wall surface of the housing is a heat dissipation surface, and the heat dissipation area of the heat dissipation surface is larger than or equal to 4.5 dm2 and smaller than or equal to 7 dm2.
H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
H01M 10/6551 - Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
H01M 50/291 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
H01M 50/528 - Fixed electrical connections, i.e. not intended for disconnection
H01M 50/559 - Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
A power-assisted working machine and mower. The mower includes a body including a traveling assembly and a drive motor for driving the traveling assembly; a handle device connected to the body and including an operating member, where the operating member includes a grip for a user to hold; and a connecting rod connected to the body. The mower further includes a motor parameter detection device configured to detect at least one of the rotor position and the working current of the drive motor; an angle detection device configured to detect an angle of inclination of a workplane of the mower relative to a horizontal plane; and a controller configured to estimate thrust applied to the handle device according to the rotor position and/or the working current and the angle of inclination.
A01D 75/28 - Control mechanisms for harvesters or mowers when moving on slopes; Devices preventing lateral pull
A01D 34/00 - Mowers; Mowing apparatus of harvesters
A01D 34/69 - Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator with motor driven cutters or wheels with motor driven wheels
A01D 34/78 - Driving mechanisms for the cutters electric
An angle drill (100), comprising: a housing (11); an electric motor (12), at least partially arranged in the housing (11), the electric motor (12) comprising a motor shaft (121) rotating around a motor axis (102); an energy source (19), supplying power to the electric motor (12), the energy source (19) being detachably connected to the housing (11); and an output mechanism (15), comprising an output shaft (151) rotating with a first axis (101) as an axis, the output shaft (151) being driven by the electric motor (12), and the first axis (101) intersecting the motor axis (102). When a torque of the output shaft (151) is greater than or equal to 10 N•m, the ratio of the output power of the angle drill (100) to the weight of the angle drill (100) is greater than or equal to 220 W/kg.
B23B 45/02 - Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor driven by electric power
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
B25D 16/00 - Portable percussive machines with superimposed rotation
B25D 17/00 - PERCUSSIVE TOOLS - Details of, or accessories for, portable power-driven percussive tools
B25F 1/00 - Combination or multi-purpose hand tools
Disclosed is a snowthrower. The snowthrower includes: a shaft configured to rotate around a first axis, a first auger connected to the shaft, an intake housing configured to receive at least a portion of the shaft, and a scraping assembly mounted to the intake housing. The scraping assembly includes a bottom edge configured to contact a ground, and the bottom edge is disposed frontward of the first axis.
E01H 5/09 - Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying elements, e.g. conveying pneumatically dislodging essentially by driven elements the elements being rotary or moving along a closed circular path, e.g. rotary cutter, digging wheels
E01H 5/07 - Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying elements, e.g. conveying pneumatically dislodging essentially by non-driven elements, e.g. scraper blades and conveying dislodged material by driven or pneumatic means
An electric tool, comprising: an electric motor assembly (20), which is at least partially arranged in a housing (11). The electric motor assembly (20) comprises a first electric motor (21), a second electric motor (22) and a connector (23), wherein limit values of efficiencies of the electric motor assembly (20) constitute a total efficiency interval, and the portions, which have an efficiency value greater than or equal to 70%, of the electric motor assembly constitute a first efficiency interval, the ratio of the first efficiency interval to the total efficiency interval being greater than or equal to 0.5.
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
H02P 5/00 - Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
A nail gun includes: a housing; an accessory box for accommodating a fastener and at least partially connected to the housing; and a power output portion for outputting a striking force to the fastener; and an operating member triggered to have at least a first position and a second position, where the nail gun has a maximum desired penetration depth when the operating member is operated to the first position, and the nail gun has a minimum desired penetration depth when the operating member is operated to the second position; and when the operating member switches from the first position to the second position, an angle by which the operating member rotates about a first straight line is less than or equal to 360°.
A walk-behind electric device includes a device body, a moving wheel, a moving motor, a power interface, and a control unit. The moving wheel is connected to the device body. The moving motor is configured to drive the moving wheel. The power interface is connected to a power supply so as to supply power to the moving motor. The control unit is configured to identify, according to device parameters of the walk-behind electric device, an auxiliary operation that a user wants to perform on the walk-behind electric device, where the auxiliary operation is at least partially positively correlated to at least one output parameter of the moving motor.
A01D 34/00 - Mowers; Mowing apparatus of harvesters
A01D 34/68 - Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator with motor driven cutters or wheels
A01D 34/69 - Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator with motor driven cutters or wheels with motor driven wheels
A01D 34/78 - Driving mechanisms for the cutters electric
A nail gun includes: a housing; an accessory box for accommodating a fastener and at least partially connected to the housing; and a power output portion for outputting a striking force to the fastener; and an operating member triggered to have at least a first position and a second position, where the nail gun has a maximum desired penetration depth when the operating member is operated to the first position, and the nail gun has a minimum desired penetration depth when the operating member is operated to the second position; and when the operating member switches from the first position to the second position, an angle by which the operating member rotates about a first straight line is less than or equal to 3600 .
A charging system includes at least one first charging device and at least one second charging device that are cascaded. The first charging device includes at least one first accommodation portion for mounting a first energy storage device and a connecting port for connecting the second charging device or the first charging device. The second charging device includes at least one second accommodation portion for mounting a second energy storage device and a connecting port for connecting the first charging device or the second charging device. The first accommodation portion and the second accommodation portion have different shapes or dimensions.
A charging system includes at least one first charging device and at least one second charging device that are cascaded. The first charging device includes at least one first accommodation portion for mounting a first energy storage device and a connecting port for connecting the second charging device or the first charging device. The second charging device includes at least one second accommodation portion for mounting a second energy storage device and a connecting port for connecting the first charging device or the second charging device. The first accommodation portion and the second accommodation portion have different shapes or dimensions.
A riding mowing device includes a frame; a cutting assembly; a traveling assembly configured to drive the riding mowing device to travel and including a first traveling assembly located on the front part of the riding mowing device and a second traveling assembly located on the rear part of the riding mowing device, where the first traveling assembly and the second traveling assembly are separately mounted on the frame; and a power supply assembly configured to supply power to at least the cutting assembly and the traveling assembly and mounted to the frame. The riding mowing device further includes one of a steering wheel assembly and an operating lever assembly, and one of the steering wheel assembly and the operating lever assembly is selectively mounted on the frame.
A01D 34/66 - Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle with two or more cutters
A power tool includes a housing including a support portion, a cutting unit, and a driving device configured to drive the cutting unit, where the cutting unit moves between a first position and a second position relative to the support portion under the action of the driving device. The cutting unit implements a blade lifting motion under the action of the driving device: the cutting unit moves from the first position to the second position. The blade lifting motion includes a first mode and a second mode; in the first mode, a time for the cutting unit to implement the blade lifting motion is a first blade lifting time; and in the second mode, a time for the cutting unit to implement the blade lifting motion is a second blade lifting time; where the first blade lifting time is less than the second blade lifting time.
A power tool includes an output assembly, a first motor, a housing, and a liquid pump assembly, where the output assembly implements an operation, the first motor is used for driving the output assembly to operate, the housing is formed with a grip for a user to hold, the liquid pump assembly includes a liquid pump and a second motor for driving the liquid pump to operate, the liquid pump assembly is at least partially disposed within the grip, and a total length of the power tool is greater than or equal to 20 cm and less than or equal to 150 cm.
A power tool includes: an electric motor including a rotor and multi-phase stator windings; multiple power switches arranged between a power supply and the electric motor and including multiple high-side switches and multiple low-side switches; a parameter detection device configured to detect an electrical parameter of the electric motor; and a controller configured to output a control signal to control the multiple power switches and at least configured to control the electric motor to brake. The controller is further configured to: determine, according to the electrical parameter, a brake timing for braking the electric motor and start controlling the electric motor to brake when the brake timing arrives.
H02P 3/22 - Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor by short-circuit or resistive braking
A power tool includes an output assembly, a first motor, a housing, and a liquid pump assembly, where the output assembly implements an operation, the first motor is used for driving the output assembly to operate, the housing is formed with a grip for a user to hold, the liquid pump assembly includes a liquid pump and a second motor for driving the liquid pump to operate, the liquid pump assembly is at least partially disposed within the grip, and a total length of the power tool is greater than or equal to 20 cm and less than or equal to 150 cm.
A power tool includes a housing, a motor, a ball sleeve, an oscillating member with a mounting portion, and an output shaft rotating around an output shaft axis. The oscillating member and the ball sleeve are engaged in an engagement region on the oscillating member, and the geometric center of the engagement region is an engagement center. A first plane bisects the first bearing assembly along a direction of the output shaft axis, and a second plane bisects the second bearing assembly along the direction of the output shaft axis. The height from the engagement center to the first plane is a first height H1, the height from the engagement center to the second plane is a second height H2, and the ratio H1/H2 of the first height H1 to the second height H2 is greater than or equal to 0.5 and less than or equal to 1.4.
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
A power tool includes an electric motor including multi-phase windings; and a control circuit for controlling the electric motor to rotate. The control circuit includes a driver circuit including multiple switching elements having multiple driving states to drive the electric motor to rotate; a parameter detection module for detecting an electrical parameter of the control circuit; and a controller for outputting a pulse-width modulation (PWM) control signal to control the driver circuit to change the multiple driving states. The controller is configured to change the absolute value of the variation of a duty cycle of the PWM control signal according to the electrical parameter to control a steady-state error of the electric motor running in a constant speed to be within a preset range.
B24B 49/10 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving electrical means
B24B 7/18 - Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
B24B 47/12 - Drives or gearings for grinding machines or devices; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
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
A power tool includes a housing, an electric motor, a driver circuit, a control module, and a current detection module. The control module is configured to: acquire a phase current value of the electric motor in real time within periodic time intervals; and turn off an on-state electronic switch within remaining time of a present time interval when the acquired phase current value exceeds a preset current threshold, and turn on an electronic switch which is controlled by the control module at present to be on when a present period of the drive signal ends, where the duration of each time interval among the periodic time intervals is the same as a period corresponding to the drive signal at present, and a period of the drive signal varies randomly within a second preset period range.
A charging apparatus includes: a housing formed with an accommodating space; and a circuit board assembly disposed in the accommodating space and including at least a printed circuit board provided with multiple electronic elements. The output power of the charging apparatus is greater than or equal to 500 W and less than or equal to 2000 W, and the ratio of the output power of the charging apparatus to the volume of the charging apparatus is higher than or equal to 20 W/in3 and lower than or equal to 30 W/in3. With the preceding solution, the charging apparatus with a small overall volume and high output power can be provided.
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H05K 5/00 - Casings, cabinets or drawers for electric apparatus
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
B60L 53/31 - Charging columns specially adapted for electric vehicles
A self-propelled device includes a cutting assembly for cutting vegetation; a body for supporting the cutting assembly; and a traveling system for driving the body to move. The traveling system includes at least a traveling wheel; and a wheel hub motor integrally disposed in the traveling wheel. Along an axial direction of the traveling wheel, the first external dimension of the self-propelled device is greater than or equal to 0.2 m and less than or equal to 1.5 m. Along a direction perpendicular to the axial direction of the traveling wheel, the second external dimension of the self-propelled device is greater than or equal to 0.5 m and less than or equal to 1.5 m.
B60K 7/00 - Disposition of motor in, or adjacent to, traction wheel
A01D 34/64 - Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
A01D 34/00 - Mowers; Mowing apparatus of harvesters
The present application discloses a battery pack for providing power to a power tool, comprising: a housing; at least one first battery cell arranged in the housing and supported by the housing, the first battery cell having a first capacity and a first cycle life; at least one second battery cell arranged in the housing and supported by the housing, the second battery cell having a second capacity and a second cycle life, the first cycle life being greater than the second cycle life and the first capacity being less than the second capacity; and a terminal assembly electrically connected to the first battery cell and the second battery cell so as to transmit power from the first battery cell and the second battery cell to a power tool.
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
Disclosed in the present application are a tool head, and a power tool and a use method therefor. The tool head comprises: a protective cover, wherein at least part of a cutting member is rotatably arranged inside the protective cover; an adjustment plate, which is rotatably arranged around a first axis, wherein the adjustment plate is configured to abut against an upper surface of a curb, and the adjustment plate has an initial state and an adjustment state, an angle between the adjustment plate and the protective cover in the initial state is greater than an angle between the adjustment plate and the protective cover in the adjustment state; an elastic device, which is configured to drive the adjustment plate to be switched from the adjustment state to the initial state; and a tool setting assembly, which is arranged on the adjustment plate. The present application can prevent an electric motor from stalling while effectively cutting weeds, thereby ensuring the service life of a blade and improving the operation experience.
A01D 34/47 - Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a horizontal axis, e.g. cutting-cylinders hand-guided by a walking operator with motor driven cutters or wheels
A handheld cutting tool includes a housing, a motor, a saw chain, a guide plate, and a blade sheath, where the motor is supported by the housing, the saw chain is driven by the motor to perform a cutting function, an end of the guide plate is supported by the housing and the guide plate is used for supporting and guiding the saw chain, and the blade sheath is formed with or connected to the first limiting portion, the housing or the guide plate is formed with a second limiting portion, and the first limiting portion and the second limiting portion are adaptable to each other so that the blade sheath is not separated from the handheld cutting tool at least under the action of gravity.
A handheld band saw includes a housing assembly including a battery pack mounting portion for mounting a battery pack, a rotating wheel assembly at least partially disposed in the housing assembly and including a first rotating wheel and a second rotating wheel, where the first rotating wheel and the second rotating wheel are configured to be substantially symmetrical about a midplane, an electric motor disposed in the housing assembly and capable of driving one of the first rotating wheel and the second rotating wheel to rotate, a fan which is capable of generating at least one airflow in the housing assembly, and a control circuit board disposed in the housing assembly.
B23D 53/12 - Hand-held or hand-operated sawing devices working with strap saw blades
B23D 55/06 - Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts of wheel mountings
B23D 55/08 - Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts of devices for guiding or feeding strap saw blades
B23D 55/02 - Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts of tables
An impact tool includes: an impact mechanism for applying an impact force to an output shaft; and a controller configured to control a motor. The controller is configured to: after the impact mechanism applies the impact force to the output shaft, determine, according to a load parameter of the output shaft in one or more impact cycles, that a fastener is in a fastening state and control the motor to enter a shutdown state. The load parameter of the output shaft includes the number of commutation cycles of the motor and/or a change in the number of commutation cycles of the motor.
B25B 21/02 - Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose with means for imparting impact to screwdriver blade or nut socket
B25B 23/147 - Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for electrically operated wrenches or screwdrivers
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
B25F 5/02 - Construction of casings, bodies or handles
32.
ELECTRONIC COMBINATION, BATTERY PACK, AND ELECTRIC TOOL AND CHARGING CONTROL METHOD THEREFOR
An electronic combination, a battery pack, and an electric tool (100) and a charging control method therefor. The electric tool (100) comprises: a motor (101); a housing (102) configured to at least partially surround the motor (101); a first energy storage device (103) used for driving the motor (101) to rotate, the first energy storage device (103) comprising at least one first energy storage unit (1031), the first energy storage device (103) being detachably mounted to the housing (102), and the first energy storage device (103) being also configured to be detachable from the housing (102) to supply power to another electric tool; a second energy storage device (104) comprising at least one second energy storage unit (1041); a charging circuit (105) electrically connected to the second energy storage device (104) and the first energy storage device (103); and a controller (106) configured to control the charging circuit (105) such that the first energy storage device (103) charges the second energy storage device (104). Therefore, by providing energy storage devices on the electric tool (100), power can be directly supplied to the electric tool (100), and the first energy storage device (103) can also be detached to supply power to another electric tool.
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
An air flow device and a handheld hair dryer. The air flow device comprises: a holding portion (150) for a user to hold; a pipe assembly (260) capable of allowing air to pass through; fan blades (252) capable of rotating about the axis of a fan; a motor (230) used for driving a fan assembly to rotate; and a guide vane (282) used for guiding the flow direction of air. The inner diameter of the pipe assembly (260) is greater than or equal to 90 mm; the flow rate of the air flow device is greater than or equal to 1000 CFM; and the maximum rotational speed of the motor (230) is less than 35,000 rpm. The air flow device reduces the vibration and noise, and improves the use experience of users.
E01H 1/08 - Pneumatically dislodging or taking-up undesirable matter; Drying by heat only, or by streams of gas; Cleaning by projecting abrasive particles
F04D 29/66 - Combating cavitation, whirls, noise, vibration, or the like; Balancing
The present application discloses a battery pack for supplying power to an electronic device, a battery compartment and a tool system. The battery pack comprises: a shell, configured to be mounted on an electronic device and supported by the electronic device; a plurality of battery cells, arranged in the shell, wherein the plurality of battery cells can provide a voltage greater than or equal to 36 V; and a terminal assembly, connected to the plurality of battery cells and configured to electrically connect the battery pack to the electronic device. The capacity of the battery pack is greater than or equal to 20 Ah, and the ratio of the capacity to the weight of the battery pack is greater than or equal to 2 Ah/kg.
A charging system includes at least one first charging device and at least one second charging device that are cascaded. The first charging device includes at least one first accommodation portion for mounting a first energy storage device and a connecting port for connecting the second charging device or the first charging device. The second charging device includes at least one second accommodation portion for mounting a second energy storage device and a connecting port for connecting the first charging device or the second charging device. The first accommodation portion and the second accommodation portion have different shapes or dimensions.
A battery pack for powering an outdoor moving includes: a housing mounted to the outdoor moving device and supported by the outdoor moving device; and a cell module mounted to the housing and including multiple cells. A cell is cylindrical and the diameter of the cell is greater than or equal to 3 cm.
H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
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
A self-propelled apparatus includes a self-propelled electric motor for driving wheels to rotate. A collision detection method includes: detecting a current of the self-propelled electric motor in real time and calculating a change rate of the current of the self-propelled electric motor; detecting a rotational speed of the self-propelled electric motor in real time and calculating a change rate of the rotational speed of the self-propelled electric motor; and determining, according to at least the change rate of the current and the change rate of the rotational speed, whether the self-propelled apparatus collides.
A power tool includes a housing, an electric motor, a switch, an operating element, a contact rod, a pressing block, and a reset element. The electric motor is disposed in the housing. The switch includes a trigger point for controlling the electric motor to be turned on. The operating element is operated so that the switch is triggered. The contact rod is supported by the housing, where the operating element is capable of pushing the contact rod to move. The pressing block is elastically connected to the contact rod and capable of being driven by the contact rod to push the trigger point. The reset element is connected to the contact rod.
H01H 3/46 - Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
B24B 23/02 - Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
B24B 49/10 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving electrical means
H01H 1/58 - Electric connections to or between contacts; Terminals
H01H 1/36 - Contacts characterised by the manner in which co-operating contacts engage by sliding
H01H 13/06 - Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
H01H 13/58 - Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force with contact-driving member rotated step-wise in one direction
The present application discloses a charging system, which comprises at least one first charging device and at least one second charging device which are cascaded. The first charging device comprises: at least one first accommodating part for mounting a first energy storage device, the first charging device capable of charging a first energy storage device mounted to the first accommodating part; and a connection port for connecting the second charging device or the first charging device. The second charging device comprises: at least one second accommodating part for mounting a second energy storage device, the second charging device being capable of charging the second energy storage device mounted to the second accommodating part; and a connection port for connecting the first charging device or the second charging device. The first accommodating part and the second accommodating part have different shapes or sizes. The scheme can be adopted to provide an electrical energy reception device for quickly charging various types of energy storage devices. The electrical energy reception device has high current output capacity, and can increase the charging speed of a battery pack in a charging system.
The present application provides a battery pack, comprising: a housing; and a battery cell assembly disposed in the housing. The battery cell assembly comprises a plurality of battery cell units. A heat absorber is in thermal contact with at least one battery cell unit to absorb heat generated by the battery cell assembly during charging and discharging of the battery pack. The heat absorber contains at least paraffin, and the mass of the paraffin is 70% to 90% of the mass of the heat absorber. The purpose of the present application is to provide a battery pack with long service life, strong capability to suppress temperature rise, and stable output performance.
A cutting tool includes: an electric motor with a stator having multiple windings and a rotor; a driver circuit electrically connected to the electric motor to drive the electric motor to run; and a controller configured to estimate the angular position of the rotor based on a working parameter of the electric motor and output a drive signal to the driver circuit based on the angular position of the rotor to control the rotation of the electric motor. At a start stage, the controller is configured to: when an abnormal start of the electric motor is detected, output a first control instruction to control the electric motor to restart, where the first control instruction includes at least the instruction to input a high-frequency signal into the driver circuit so as to acquire the angular position of the rotor.
A01D 34/68 - Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator with motor driven cutters or wheels
An adapter includes: a housing; a battery pack port for accessing a battery pack; a device port including multiple USB-type ports capable of accessing an electric device or a charging apparatus; a protocol matching module configured to perform a protocol handshake with the electric device or the charging apparatus; and a bidirectional DC-DC conversion module capable of converting electrical energy outputted by the battery pack into direct current power supply electrical energy or converting electrical energy from the charging apparatus into direct current charging electrical energy. The bidirectional DC-DC conversion module includes: a power switching element disposed on the power transmission loop between the battery pack port and the device port and capable of adjusting electrical energy in the power transmission loop; and a power control unit electrically connected to the power switching element and capable of controlling the conducting state of the power switching element.
A chainsaw (100), comprising: a housing (10); a first motor (41) supported by the housing (10); a saw chain (21) driven by the first motor (41) to execute a cutting function; a guide bar (23), one end of the guide bar being supported by the housing (10), and the guide bar being used for supporting and guiding the saw chain (21); an oil pumping assembly (50) comprising an oil pump (51) for pumping a lubricant to lubricate the saw chain (21) or the guide bar (23) and an oil can (52) for storing the lubricant; and a second motor (53) for driving the oil pump (51). The distance between the center of gravity of the first motor (41) and the center of gravity of the second motor (53) is less than or equal to 1 m.
A walk-behind working machine. The walk-behind working machine includes a body including a walking assembly and a drive assembly for driving the walking assembly; a handle device including a grip for a user to hold; and a connecting rod assembly for connecting the body to the handle device. The walk-behind working machine further includes a display capable of displaying information related to the walk-behind working machine. In this manner, it is convenient for the user to acquire the work information of a working machine, thereby improving the convenience of use of the user.
A mower includes a cutter, a deck, a power unit, and a rotary unit. The deck includes a housing formed with a cutting cavity that connects with a grass discharge passage through a first outlet. The rotary unit includes a rotary body that includes a blocking portion and a connecting portion connected to each other. The rotary unit is capable of rotating to a first position or a second position. When the rotary unit is at the first position, the blocking portion blocks the first outlet. When the rotary unit is at the second position, the first outlet is opened. The deck further includes a first base plate. The first base plate is at least partially located below the rotary unit. The blocking portion mates with the first base plate, and the first base plate limits the downward movement of the blocking portion.
A01D 34/71 - Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis with means for discharging mown material
A torque output tool includes a housing; an electric motor disposed in the housing; an output shaft capable of being connected to a working accessory and driving the working accessory to rotate; and a transmission assembly. The transmission assembly includes a drive wheel drivable by the electric motor to drive the output shaft to rotate about a first axis; a shaft lock ring disposed around the output shaft; and multiple locking posts disposed in the shaft lock ring and around the output shaft. The torque output tool further includes a spacer disposed between the drive wheel and the shaft lock ring and used for separating the locking posts from at least part of the drive wheel.
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
B25B 21/00 - Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
B25F 5/02 - Construction of casings, bodies or handles
48.
INTELLIGENT MOWING SYSTEM AND INTELLIGENT MOWING DEVICE
An intelligent mowing system includes a working region defined by a first boundary line, a non-working region defined by a second boundary line, and an intelligent mowing device. The system further includes: a control module configured to control the intelligent mowing device; a positioning module configured to position position information of the intelligent mowing device; and a data acquisition module configured to acquire regional data about a preset range from a current position of the intelligent mowing device. The control module is configured to: acquire the regional data of the intelligent mowing device when the intelligent mowing device works in a boundary walk mode in which a walk along the first boundary line or the second boundary line is performed; and control, according to the relationship between the regional data and a data threshold, the intelligent mowing device to walk along the first boundary line.
Disclosed in the present application is a pruner, comprising a front-end apparatus comprising at least a cutting assembly extending along the longitudinal axis and a front housing for supporting the cutting assembly; a rear-end apparatus comprising at least a motor for driving the cutting assembly and a rear housing for supporting the motor; a connecting rod configured to connect the front-end apparatus and the rear-end apparatus; a power supply apparatus supported by the rear housing and configured to provide electric energy for the motor; a main handle on which a first switch is connected; and a second switch provided on the front side of the first switch, wherein in the longitudinal axis direction, a distance between the first switch and first cutting teeth of the cutting assembly is greater than or equal to 120 mm and less than or equal to 1000 mm.
A power tool, comprising a locking mechanism. The locking mechanism is used for locking an output shaft when the output shaft transmits torque to an electric motor shaft. The locking mechanism comprises: a shaft lock frame, which is connected to the output shaft to drive the output shaft, wherein the shaft lock frame comprises a first inner surface surrounding a first outer peripheral surface in a circumferential direction, a first gap being provided between the first inner surface and the first outer peripheral surface; and a damping assembly, which comprises a first mounting portion connected to the output shaft, a second mounting portion connected to the shaft lock frame, and a buffer portion, wherein the damping assembly is arranged outside the first gap, at least part of the buffer portion extends in a second axis direction, the first mounting portion and the second mounting portion are connected by means of the buffer portion, and when the output shaft and the shaft lock frame move relative to each other, the buffer portion is torsionally deformed so as to provide a buffer force, by means of which the movement of the output shaft relative to the shaft lock frame is delayed.
B25B 21/02 - Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose with means for imparting impact to screwdriver blade or nut socket
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
B23B 45/02 - Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor driven by electric power
A push power tool includes a chassis. The chassis accommodates at least part of a mowing element. An adjustment mechanism is used for adjusting the mowing height. The chassis includes a first mounting portion for mounting a first gear plate, a second mounting portion for selectively mounting a second gear plate, and a third mounting portion for selectively mounting a connection mechanism for connecting a front wheel set to a rear wheel set. The chassis of the mower and the push power tool adopting the preceding solutions have good versatility.
A01D 34/69 - Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator with motor driven cutters or wheels with motor driven wheels
A01D 34/71 - Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis with means for discharging mown material
A pipe cutting machine, comprising: a housing (110), a motor (111), a rotating assembly (130), and a first driving assembly (120). The rotating assembly (130) comprises a first bracket assembly (140), a second bracket assembly (150), and a locking assembly (160); the locking assembly (160) is used for locking or unlocking a pipe to or from a pipe cutting machine; the first driving assembly (120) is driven by the motor (111) to drive the rotating assembly (130) to rotate; the locking assembly (160) comprises a rocker arm (161); and when the rocker arm (161) is located at a first position, the locking assembly (160) is in an unlocking state, and when the rocker arm (161) is located at a second position, the locking assembly (160) is in a locking state. The pipe cutting machine further comprises a second driving assembly (400); the second driving assembly (400) comprises a first pushing member (431); and the first pushing member (431) can push the rocker arm (161) to move from the first position to the second position. The pipe cutting machine has a stable and reliable locking and unlocking structure, and is convenient to operate. Further provided are two other pipe cutting machines.
B23D 21/08 - Hand-operated tube cutters with cutting wheels
B23D 19/00 - Shearing machines or shearing devices cutting by rotary discs
B26D 1/14 - Cutting through work characterised by the nature or movement of the cutting member; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
A push power tool includes a chassis. The chassis accommodates at least part of a mowing element. An adjustment mechanism is used for adjusting the mowing height. The chassis includes a first mounting portion for mounting a first gear plate, a second mounting portion for selectively mounting a second gear plate, and a third mounting portion for selectively mounting a connection mechanism for connecting a front wheel set to a rear wheel set. The chassis of the mower and the push power tool adopting the preceding solutions have good versatility.
A01D 34/00 - Mowers; Mowing apparatus of harvesters
A01D 34/67 - Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator
A fan includes a battery pack coupling portion and an air output assembly including fan blades, a front housing, and a rear housing, where the fan blades are driven by a motor to rotate about a first axis. The fan further includes a pivot assembly connected to the air output assembly, where the air output assembly is rotatable about a second axis of the pivot assembly. The fan further includes a support assembly connected to the pivot assembly for supporting the air output assembly. The maximum distance of the front housing available for air output in an up and down direction is defined as the air output diameter of the fan, and the distance between the first axis and the second axis is defined as a first distance, where the ratio of the first distance to the air output diameter is greater than or equal to 25%.
A battery pack includes a housing; a cell assembly including multiple stacked cell units; elastic pads separately disposed between adjacent ones of the multiple cell units, where air cavities are formed between the elastic pads and the adjacent ones of the multiple cell units; a sealing member disposed at least on the surface of the cell assembly, where the sealing member and the housing form a sealed chamber; and an air-permeable element partially disposed on the side surface of the cell assembly and extending into multiple air cavities along the first direction, where the air-permeable element connects with the air outside the sealed chamber.
H01M 50/291 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
H01M 50/293 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
H01M 50/247 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
H01M 10/653 - Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
The present application discloses an electric tool and a control method. The electric tool comprises: a mounting portion, configured to optionally mount one of a plurality of working accessories; a motor, configured to drive the working accessory mounted on the mounting portion; and a control device, configured to control the motor to rotate according to a target control program matching the working accessory. The control device is configured to estimate rotational inertia of the motor when the motor is in a pre-start phase, and identify, on the basis of the rotational inertia, the working accessory currently mounted on the mounting portion.
The present application discloses an impact tool, comprising: an impact mechanism, used for applying an impact force to an output shaft; a controller, used for controlling a motor; and an operation member, used for receiving an operation instruction of a user. The motor is started or stopped according to the operation instruction. The controller is configured to: obtain state information of the operation member when the impact tool is stopped; send a starting signal to the motor when it is determined that the operation member is in an activated state and the motor is not in a started state; and after sending the starting signal to the motor, stop sending the starting signal to the motor after it is determined, according to an operation state of the motor, that the motor is started.
B25D 11/00 - Portable percussive tools with electromotor drive
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
Disclosed in the present application is a battery pack. The battery pack comprises: a battery cell group used to store electrical energy; electrical power terminals used to transmit electrical power; and a communication terminal used to transmit first communication data, wherein the electrical power terminals include a first electrical power terminal which forms a first electrical connection with the battery cell group and is used to transmit electrical power, and a second electrical power terminal which forms a second electrical connection with the battery cell group and is used to transmit electrical power and second communication data. The battery pack further comprises a control unit, which is at least electrically connected to the second electrical power terminal and the communication terminal, and can control the connection state of the second electrical connection.
A handheld power tool including a housing including a barrel and a head housing; a drive mechanism including an electric motor and a drive shaft, where the electric motor outputs power through the drive shaft; a transmission mechanism including a gear assembly; and an output mechanism including an output shaft for outputting power to the outside and at least partially disposed in the head housing; where the transmission mechanism drivingly connects the drive mechanism to the output mechanism. The barrel is formed with a first accommodation cavity and a second accommodation cavity, the electric motor is at least partially mounted in the first accommodation cavity, and the gear assembly is at least partially mounted in the second accommodation cavity.
B25B 21/02 - Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose with means for imparting impact to screwdriver blade or nut socket
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
B25F 5/02 - Construction of casings, bodies or handles
A cutting tool includes: a drive device for driving a saw blade to rotate; a base plate having an upper surface and a lower surface, wherein the lower surface is configured to abut against a cut material; a body accommodating at least part of the drive device and connected to the upper surface; a handle at least partially configured behind the body; and a junction portion for detachably mounting a battery set. When a cutting depth of the cutting tool is changed and a cutting angle of the cutting tool remains unchanged, a position of the handle relative to the base plate remains unchanged. The cutting tool is comfortable and convenient to use.
A string trimmer head includes a spool, a head housing, an automatic line release device, and an operating member. The automatic line release device is configured to enable the spool and the head housing to generate a first relative rotation so that the string trimmer head releases a string trimmer line, where the string trimmer line has an effective length extending out of the accommodation space; and the automatic line release device is further configured to make the string trimmer head release the string trimmer line when the effective length of the string trimmer line is less than a preset value. The operating member is configured to be operable by a user to drive the spool and the head housing to generate a second relative rotation so that the string trimmer line is wound around the spool.
A blower includes: a motor; a fan driven by the motor to rotate about a central axis; a battery pack for supplying power to the motor; and a blower tube assembly forming an air inlet for the entry of air and an air outlet for the exit of the air. The blower further includes: a first handle forming a first grip for a hold and a second handle forming a second grip for a hold, where at least part of a projection of the battery pack along a radial direction of the central axis on a plane passing through the central axis is located between the first handle and the second handle.
F04D 25/06 - Units comprising pumps and their driving means the pump being electrically driven
H01M 50/247 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
A power tool, comprising: a transmission assembly, used for transmitting power between a motor and an output assembly to drive an output shaft to swing back and forth; and an adjustment assembly, used for adjusting the transmission assembly, the adjustment assembly being configured such that when the load of the output shaft satisfies a preset value of the adjustment assembly, the adjustment assembly controls the transmission assembly according to the load of the output shaft, thus the transmission assembly adjusts the swing angle of a work accessory.
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
A riding lawn mower, including: a frame; a seat; a walking assembly and a walking motor; a cutting assembly and a driving motor configured to drive the cutting assembly; a first energy storage device and a second energy storage device configured to supply power to at least one of the walking motor or the driving motor; a driving circuit to transfer power from at least one of the energy storage devices to at least one of the motors; and a charging circuit to charge at least one of the energy storage devices. The riding lawn mower further includes a first identification terminal engageable with the second energy storage device and a second identification terminal engageable with the first energy storage device; the riding lawn mower identifies a type of the energy storage devices through the identification terminals and selectively connects them to the driving circuit and the charging circuit.
A01D 69/02 - Driving mechanisms or parts thereof for harvesters or mowers electric
A01D 34/00 - Mowers; Mowing apparatus of harvesters
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
A01D 34/78 - Driving mechanisms for the cutters electric
B60L 53/60 - Monitoring or controlling charging stations
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
B60L 50/64 - Constructional details of batteries specially adapted for electric vehicles
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 50/247 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
H01M 50/562 - Terminals characterised by the material
A01D 34/64 - Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
H01G 11/34 - Carbon-based characterised by carbonisation or activation of carbon
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 10/46 - Accumulators structurally combined with charging apparatus
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
A string trimmer includes: a string trimmer head; a drive device including a motor for driving the string trimmer head to rotate about a first axis; an operating device including a first housing for connecting a power supply device to supply power to the motor; and a connecting device for connecting the drive device to the operating device. The first housing is formed with an arm rest portion to be rested on, a coupling portion for coupling the power supply device, and a connecting portion connected to the connecting device; where the arm rest portion is disposed behind the connecting portion and configured to be squeezable by an arm when the string trimmer is operated; and an air inlet is disposed between the coupling portion and the connecting portion, where the air inlet communicates with the inside of the first housing.
A snow sweeper, comprising: a main body (100); and an operation assembly (200) connected to the main body (100) and used for allowing an operator to guide and control the snow sweeper. The main body (100) comprises a snow throwing system (50). The snow throwing system (50) comprises: a snow throwing member (52); a deflector (51) connected to the snow throwing member (52) and located above the snow throwing member (52); a first motor (54) used for driving the snow throwing member (52) to rotate around a first axis (104) relative to the main body (100); and a second motor (55) used for driving the deflector (51) to rotate around a second axis (105) relative to the snow throwing member (52). When the snow throwing member (52) is located at a middle position, both the first motor (54) and the second motor (55) are located in a first circular region centered on a point on the second axis (105), wherein the radius of the first circular region is less than or equal to 800 mm. Also provided is a hand-push type working machine.
E01H 5/09 - Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying elements, e.g. conveying pneumatically dislodging essentially by driven elements the elements being rotary or moving along a closed circular path, e.g. rotary cutter, digging wheels
E01H 5/04 - Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying elements, e.g. conveying pneumatically
(1) Hand-held electric drills; hand-held electric hammers; hand-held power driven grinders; metal cutting machines; power hammers; power tools; power-operated drill hammers; sanding machines; sanding machines for woodworking; stone cutting machines; wood cutting machines
An electric riding lawn mower includes a seat for a user to ride, a main frame to support the seat, a power output assembly including a mowing element to output power to realize mowing function and a first motor to drive the mowing element, a walking assembly to at least drive the electric riding lawn mower to travel in the direction of a first straight line on the ground and a second motor to drive the walking assembly, and a power supply device to power the electric riding lawn mower with a first battery pack, which includes a first battery pack housing and a plurality of battery cells disposed therein. The power supply device is mounted to the main frame. At least one of the first battery packs of the power supply device forms a pluggable connection with the main frame. The battery cells are lithium batteries.
A01D 69/02 - Driving mechanisms or parts thereof for harvesters or mowers electric
A01D 34/64 - Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
A01D 34/78 - Driving mechanisms for the cutters electric
An electric riding lawn mower includes a seat for a user to ride, a main frame to support the seat, a power output assembly including a mowing element to output power to realize mowing function and a first motor to drive the mowing element, a walking assembly to at least drive the electric riding lawn mower to travel in the direction of a first straight line on the ground and a second motor to drive the walking assembly, and a power supply device to power the electric riding lawn mower with a first battery pack, which includes a first battery pack housing and a plurality of battery cells disposed therein. The power supply device is mounted to the main frame. At least one of the first battery packs of the power supply device forms a pluggable connection with the main frame. The battery cells are lithium batteries.
A01D 69/02 - Driving mechanisms or parts thereof for harvesters or mowers electric
A01D 34/64 - Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
A01D 34/78 - Driving mechanisms for the cutters electric
A power tool includes a motor, a power supply device, a driver circuit, a parameter acquisition module, and a controller. The motor includes a stator and a rotor. The motor is configured to generate a reluctance torque. The driver circuit is electrically connected to the motor to drive the motor. The parameter acquisition module is configured to acquire a current of the motor, a rotational speed of the motor, and a position of the rotor. The controller is configured to: according to at least one of the current of the motor, the rotational speed of the motor, or the position of the rotor, dynamically adjust a current applied to the stator so that an included angle between a stator flux linkage of the motor and a rotor flux linkage of the motor ranges from 90° to 135°.
H02P 21/22 - Current control, e.g. using a current control loop
B23B 45/02 - Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor driven by electric power
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
H02P 27/12 - 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 pulsing by guiding the flux vector, current vector or voltage vector on a circle or a closed curve, e.g. for direct torque control
(1) Abrasive discs for power operated grinders; abrasive wheels for power-operated grinders; blades for power saws; manufactured mesh diamonds adapted for circular saw blades; power operated grinding wheels; sharpening wheels being parts of machines
(1) Abrasive discs for power operated grinders; abrasive wheels for power-operated grinders; blades for power saws; manufactured mesh diamonds adapted for circular saw blades; power operated grinding wheels; sharpening wheels being parts of machines
A riding lawn mower, including: a frame; a seat; a walking assembly and a walking motor; a cutting assembly and a driving motor configured to drive the cutting assembly; a first energy storage device and a second energy storage device configured to supply power to at least one of the walking motor or the driving motor; a driving circuit to transfer power from at least one of the energy storage devices to at least one of the motors; and a charging circuit to charge at least one of the energy storage devices. The riding lawn mower further includes a first identification terminal engageable with the second energy storage device and a second identification terminal engageable with the first energy storage device; the riding lawn mower identifies a type of the energy storage devices through the identification terminals and selectively connects them to the driving circuit and the charging circuit.
A01D 34/78 - Driving mechanisms for the cutters electric
A01D 34/64 - Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
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 1/00 - Supplying electric power to auxiliary equipment of electrically-propelled vehicles
B60L 53/16 - Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
A backpack blower includes a blower device, a power supply, and a backpack device. The backpack device includes a device body and a strap assembly. The strap assembly is worn by a user. The strap assembly has a first center plane, and the center of gravity of the power supply and the blower device are separately located on two sides of the first center plane.
H01M 50/247 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
H01M 50/204 - Racks, modules or packs for multiple batteries or multiple cells
F16M 13/04 - Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or holding steady relative to, a person, e.g. by chains
F04D 25/06 - Units comprising pumps and their driving means the pump being electrically driven
A handheld electric tool (10), comprising: a motor (14); a handle (12), the handle being provided with a first switch (121) capable of controlling the start and stop of the motor; an output assembly (13); and an adjusting device (15), comprising a stretchable telescopic rod assembly (150). The adjusting device enables the handheld electric tool to have at least two working states, that is, a first working state and a second working state by changing the length; The distance between the foremost side of the handheld electric tool and the rearmost side of the first switch is defined as an effective length of the handheld electric tool, and when the handheld electric tool is in the first working state, the handheld electric tool has a first effective length (T1); when the handheld electric tool is in the second working state, the handheld electric tool has a second effective length (T2); the first effective length is less than or equal to 1 meter, and the second effective length is greater than the first effective length. Also disclosed is a single-handed saw. The handheld electric tool and the single-handed saw achieve the effects of convenience, lightness and flexibility, and can also meet user requirements for different pruning heights.
A01G 3/025 - Secateurs; Flower or fruit shears having elongated or extended handles
A01G 3/08 - Other tools for pruning, branching or delimbing standing trees
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
A bidirectional power supply apparatus and system. The bidirectional power supply apparatus comprises: an alternating current input end configured to input an alternating current to the bidirectional power supply apparatus; an alternating current output end configured to output an alternating current to an alternating current device; a direct current input or output end configured to at least bidirectionally transmit a direct current between the bidirectional power supply apparatus and the direct current device; a bidirectional energy conversion module configured to at least perform multiple energy conversions on electric energy inputted into the bidirectional power supply apparatus; and a power management module at least electrically connected to the alternating current input end, the alternating current output end and the direct current input or output end. The power management module is configured to control an energy conversion mode of the bidirectional energy conversion module according to a port connection condition of the alternating current input end or the alternating current output end or the direct current input or output end.
H02M 5/458 - Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
H02M 7/797 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with 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
H02J 7/34 - Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
A hedge trimmer includes: a housing formed with an accommodation space; a blade assembly including a first blade and a second blade, where the first blade and the second blade reciprocate along a direction of a first straight line, and the blade assembly further includes a blade support for supporting the first blade and the second blade and extending along the direction of the first straight line; a transmission mechanism for driving the blade assembly to move; and a motor coupled to the housing and used for driving the transmission mechanism. The blade support has a density of greater than or equal to 1 g/cm3 and less than or equal to 2.2 g/cm3.
A table cutting device includes: a workbench on which a workpiece is capable of being placed; a cutting assembly capable of performing a cutting operation on the workpiece; a drive assembly including a motor and driving the cutting assembly to move; and a power supply connection assembly for connecting a battery pack. The battery pack supplies an energy source to the table cutting device. The table cutting device further includes a display assembly capable of displaying an electric quantity of the battery pack. When the battery pack is mounted to the table cutting device, the distance between the display assembly and the battery pack is greater than or equal to 5 mm. The table cutting device has the additional display assembly so that an operator can observe electric quantity information of the battery pack when operating the table cutting device, thereby greatly improving operation convenience.
B23D 59/00 - Accessories specially designed for sawing machines or sawing devices
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
B23D 45/06 - Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade arranged underneath a stationary work-table
A table cutting device includes a workbench assembly for holding a workpiece, a cutting assembly for performing a cutting operation on the workpiece movable relative to the workbench assembly and including a cutting member rotatable about a first axis, a motor disposed on a side of the workbench assembly for driving the cutting assembly to move and rotatable about a second axis, and a circuit board. The table cutting device further includes a mounting housing in which the circuit board and the motor are disposed. The table cutting device has high heat dissipation efficiency, a reasonable layout, and a stable structure.
B23D 59/02 - Devices for lubricating or cooling circular saw blades
B23D 47/02 - Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of guiding arrangements for work-table or saw-carrier
A riding lawn mower includes: a seat; a chassis; a wheel; a motor configured to drive the wheel to rotate; a walking control module configured to drive the motor; a power supply assembly configured to at least supply electric power to the motor and the walking control module; and a cutting assembly mounted to the chassis, the cutting assembly including a cutting member for cutting grass; wherein the riding lawn mower further includes: a pedal assembly including a pedal lever rotatable about a first shaft axis to control a walking speed of the riding lawn mower when operated by the user; wherein the pedal lever has an initial position; when the pedal lever is in the initial position and power supply assembly is supplying electric power to the motor and the walking control module, the walking control module controls the riding lawn mower to park.
A01D 34/64 - Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
A01D 34/78 - Driving mechanisms for the cutters electric
A power tool includes a power tool body. The power tool body is configured to be adapted to at least a first battery pack having a first nominal voltage and a first output terminal set and a second battery pack having a second nominal voltage and a second output terminal set, where the first nominal voltage is different from the second nominal voltage. The power tool body includes a first input terminal set configured to be selectively electrically connected to one of the first output terminal set and the second output terminal set to supply power to the power tool body.
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
F21L 4/04 - Electric lighting devices with self-contained electric batteries or cells characterised by provision of a light source housing portion adjustably fixed to the remainder of the device
H02P 4/00 - Arrangements specially adapted for regulating or controlling the speed or torque of electric motors that can be connected to two or more different electric power supplies
A misting fan includes a fan assembly, having a fan blade and a motor configured to drive the fan blade to rotate. A nozzle is provided on the fan assembly and configured to spray water mist. A rack is configured to support the fan assembly, the rack includes an extending portion configured to be placed and extending in a plane. The misting fan is provided with a moving wheel configured to walk, and the moving wheel is provided in the extending portion.
A smart mowing system includes a working area defined by a boundary and a smart mowing apparatus. The system further includes: a positioning module for acquiring positioning coordinates of the smart mowing apparatus; a mapping module for making an area map including the working area; a marking device; a coordinate estimation module configured to estimate approximately real coordinates of the smart mowing apparatus on the area map when the distance between the smart mowing apparatus and the marking device is less than or equal to a set value to obtain a coordinate pair set including the positioning coordinates and the approximately real coordinates; and a positioning correction module configured to determine a coordinate correction amount according to the coordinate pair set and correct the positioning coordinates of the smart mowing apparatus in operation by using the coordinate correction amount to obtain real coordinates.
A standing light includes a light assembly, a support rod assembly, and a housing assembly. The support rod assembly is configured to support the light assembly. The housing assembly or the support rod assembly is formed with a power access interface for being connected to a power supply. The standing light further includes a mounting assembly configured to detachably install the light assembly to the support rod assembly. When the light assembly is installed to the support rod assembly, the light assembly is capable of being powered by the power supply connected to the power access interface. The light assembly is further formed with a power supply access interface for accessing power, and when the light assembly is detached from the support rod assembly, the light assembly is capable of being detachably connected to a battery pack through the power supply access interface.
F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
F21S 9/02 - Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
F21V 23/06 - Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices
F21V 21/06 - Bases for movable standing lamps; Fixing standards to the bases
F21V 23/04 - Arrangement of electric circuit elements in or on lighting devices the elements being switches
A power tool includes a main housing, a drive mechanism, a working head, and a connection assembly. The connection assembly includes an input portion connected to the drive mechanism and an output portion connected to an output shaft. The connection assembly rotates the working head about a first axis relative to the main housing. The power tool includes a first transmission path. When the working head rotates about the first axis relative to the main housing, components in the first transmission path are allowed to deform or to be displaced along a direction of the first transmission path.
B25B 21/00 - Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
B25B 23/00 - TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING - Details of, or accessories for, spanners, wrenches, screwdrivers
09 - Scientific and electric apparatus and instruments
Goods & Services
(1) DC input power supplies; lithium batteries; lithium-ion battery chargers; power inverters
(2) Downloadable mobile application for operating and controlling outdoor power equipment; application software for connecting and controlling outdoor power equipment, showing the status of the equipment in real-time, providing tips and advice on using outdoor power equipment, updating the firmware of the outdoor power equipment, and providing after-sales information; battery packs for outdoor power equipment, namely battery packs for lawn mowers, lawn trimmers, hedge trimmers, string trimmers, leaf blowers, snow blowers, lawn edgers, chain saws, hedge shears, pruners, brush cutters and chaff cutters; battery chargers for outdoor power equipment, namely battery chargers for lawn mowers, lawn trimmers, hedge trimmers, string trimmers, leaf blowers, snow blowers, lawn edgers, chain saws, hedge shears, pruners, brush cutters and chaff cutters.
A pipe cleaning machine includes: a handle for holding; a drum connected to the handle and rotatable with respect to the handle; a cable disposed in the drum; an electric motor driving the cable to rotate and including an electric motor shaft extending along a first axis; and a cable feeding assembly for feeding the cable. The drum includes an exposed portion, where the ratio of the surface area of the exposed portion to the total surface area of the drum is greater than or equal to 40% and less than or equal to 100%.
E03C 1/302 - Devices to facilitate removing of obstructions in waste pipes or sinks using devices moved through the pipes
B08B 9/047 - Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes the cleaning devices having motors for powering cleaning tools
A power device (10), comprising: an output assembly (100), a housing (200), and a power supply apparatus (300). The output assembly (100) comprises an output shaft (110) used for outputting power and capable of rotating around a first axis (111), the housing (200) is used for supporting the output assembly (100), the power supply apparatus (300) supplies power to the output assembly (100), and the power supply apparatus (300) at least comprises a first battery pack (310, 310a, 310b, 310c, 310d).
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
B25F 5/02 - Construction of casings, bodies or handles
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02K 7/10 - Structural association with clutches, brakes, gears, pulleys or mechanical starters
H02K 11/00 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
H01M 50/244 - Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
H01M 50/247 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
09 - Scientific and electric apparatus and instruments
Goods & Services
Downloadable mobile application for operating and controlling outdoor power equipment; Downloadable application software for connecting and controlling outdoor power equipment, showing the status of the equipment in real-time, providing tips and advice on using outdoor power equipment, updating the firmware of the outdoor power equipment, and providing after-sales information
09 - Scientific and electric apparatus and instruments
Goods & Services
Batteries; Battery chargers; Battery packs; Portable power supplies [rechargeable batteries]; Assistive software; Industrial automation software for machines; Downloadable mobile application for operating and controlling outdoor power equipment; Application software for connecting and controlling outdoor power equipment, showing the status of the equipment in real-time, providing tips and advice on using outdoor power equipment, updating the firmware of the outdoor power equipment, and providing after-sales information.
A riding lawn mower includes: a seat; a chassis; a walking assembly including a left second walking wheel, a right second walking wheel, a left walking motor and a right walking motor; and a walking control system for controlling the left walking motor and the right walking motor. The walking control system includes two current detection modules respectively configured to obtain sampled currents of the left walking motor and the right walking motor; the walking control system is configured to obtain a first feedback current of the left walking motor and a first feedback current of the right walking motor, and when a difference of the first feedback current of the left walking motor and the first feedback current of the right walking motor is greater than or equal to a predefined current threshold, reduce a first target voltage of the walking motor with a higher first feedback current.
A01D 34/00 - Mowers; Mowing apparatus of harvesters
A01D 34/64 - Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
A battery pack includes: multiple cell units; a housing forming an accommodating cavity for accommodating at least the multiple cell units, where the accommodating cavity is an enclosed space; and a thermal insulator disposed on the outer sides of the multiple cell units, where the interior of the thermal insulator is filled with a working medium for dissipating heat from the multiple cell units. When at least one of the multiple cell units reaches a preset temperature, the working medium changes a phase from a liquid state to a gaseous state to dissipate the heat from the multiple cell units.
H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
H01M 10/6569 - Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
H01M 10/658 - Means for temperature control structurally associated with the cells by thermal insulation or shielding
H01M 10/6568 - Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
A cutting device (1000), comprising a cutting system (1), which comprises a motor (211) for providing power for the cutting system; a cutting assembly (10), which comprises a cutting member (120) and a protective cover (110) at least partially surrounding the cutting member, wherein the cutting member is driven by the motor to rotate; and a first handle (30), which is provided with a switch assembly (310) for controlling the motor to switch states, wherein when the switch assembly is in a first state, the cutting system is powered off and the protective cover is positioned in a first position; and when the switch assembly is in a second state, the cutting system is started and the protective cover is positioned in a second position. Further provided is a control method for a cutting device. The cutting device further comprises a sensing element and a controller, wherein the controller determines the position of the protective cover (110) according to position information when the controller detects that the switch assembly switches from the first state to the second state; the controller starts the cutting system when the protective cover is positioned in the second position; and when the protective cover is positioned in the first position and the switch assembly (310) switches to the second state, the controller controls the cutting system to not start. The cutting device links the protective cover with a switch, so that the safety of starting the cutting system is improved, and an operator can be effectively prevented from being accidentally injured.
A cutting device, comprising a box body, a workbench arranged on the box body, and a cutting assembly arranged on the box body, wherein the workbench comprises a bench plate used for bearing a workpiece; the bench plate is provided with a first cutting groove in a first direction; the bench plate is connected to the box body in a sliding manner in the first direction; when the bench plate slides towards the cutting assembly, the cutting assembly passes through the first cutting groove, such that the cutting assembly cuts the workpiece on the bench plate; and the sliding travel of the bench plate is greater than the cutting travel of the workpiece. The cutting device of the present application can realize automatic cutting, increase a cutting length and improve the cutting quality.
B28D 1/24 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising with cutting discs
A charging device includes: a power interface configured to access a power supply; and a charging interface configured to be detachably connected to a battery pack. The charging interface includes: a charging terminal configured to be connected to a charging terminal of the battery pack; a communication terminal configured to be connected to a communication terminal of the battery pack; and a communication module receiving the communication information of the battery pack. The charging device further includes a communication protection module connected between the communication terminal and the communication module and configured to isolate an interference voltage signal higher than or equal to a preset voltage value to protect the communication module.
