An electric tool, a charging device, a battery pack, and a heat dissipation structure. The electric tool (10) comprises a housing (110), a printed circuit board assembly, and a heat absorbing body (130); the printed circuit board assembly is provided in the housing (110); the heat absorbing body (130) is in thermal contact with at least part of the printed circuit board assembly and is configured to absorb heat generated by the printed circuit board assembly; and the heat absorbing body (130) comprises a hydrogel (133).
An impact tool, comprising: a motor shaft (121); an output shaft (131) used for outputting power, the output shaft using an output axis as a rotating axis; an impact mechanism (15) used for providing an impact force; and a transmission mechanism (14) used for performing power transmission between the motor shaft and the impact mechanism, the transmission mechanism comprising multiple stages of transmission assemblies, among the multiple stages of transmission assemblies, the transmission ratio of at least one stage of transmission assembly being configured to be adjustable, and the output transmission ratio of the multiple stages of transmission assemblies being greater than 1. The rotation speed and torque of the tool are mechanically adjusted, so that the output power of the motor is not changed, thereby improving the motor efficiency to a certain extent.
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
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
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 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
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
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
10.
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.
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 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.
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 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
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 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 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
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 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
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 fan (10) comprising: fan blades (22), which are driven to rotate by an electric motor (24); a front protection cover (21), which is located at the front end of the fan blades (22); a rear protection cover (23), which is located at the rear end of the fan blades (22); and a battery pack joint portion (34), which is configured for mounting a battery pack. The electric motor (24) of the fan (10) at least has one operable first rotation speed, such that when the electric motor (24) rotates at the first rotation speed, the total air volume formed by the fan (10) is greater than or equal to 800 CFM and less than or equal to 1800 CFM.
F04D 25/08 - Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
E01H 1/08 - Pneumatically dislodging or taking-up undesirable matter; Drying by heat only, or by streams of gas; Cleaning by projecting abrasive particles
A dust blowing fan (100), comprising: a fan assembly (13, 32), fan blades (131, 132), and an electric motor (132, 322) used for driving the fan blades (131, 132) to rotate, the fan assembly (13, 32) being provided with a first end (13a) for air intake and a second end (13b) for air venting; a support assembly (10) used for supporting the fan assembly (13, 32); and a filtration assembly (14, 24, 34), comprising a filter cartridge (141), the filter cartridge (141) being detachably mounted at the first end (13a), wherein the support assembly (10) forms a combination portion (111) used for being detachably combined with a battery pack (101, 102, 103), the battery pack (101, 102, 103) supplies power to the electric motor (132, 322), and after being separated from the combination portion (111), the battery pack (101, 102, 103) is used for supplying power to an electric tool. Further disclosed is a toolbox system (300), a fan assembly (13, 32) being arranged in an accommodating cavity (311) of a toolbox, solving the problem that dust is liable to accumulate in a box body during an indoor decoration or construction process.
A lighting apparatus (100) comprising: a base (13), a direct-current power supply (60), a lighting assembly (12) and a lifting mechanism (11). The lifting mechanism (11) moves in the direction of a first straight line (101), so as to allow the lighting assembly (12) to be away from and close to the base (13); the lifting mechanism (11) comprises a first movement assembly (113a) and a second movement assembly (113b); the length of the first movement assembly (113a) in the direction of the first straight line (101) can be increased and decreased; the length of the second movement assembly (113b) in the direction of the first straight line (101) can be increased and decreased; the second movement assembly (113b) is arranged on a side portion of the first movement assembly (113a) in the direction perpendicular to the first straight line (101).
Provided is a riding-type mowing device (100), comprising: a seat (92), which is configured for a user to sit; a vehicle frame (91), which is configured to support the seat (92); a cutting assembly (10); a travelling assembly (93), which is configured to drive the riding-type mowing device (100) to travel, the travelling assembly (93) comprising a left driving wheel (932L) and a right driving wheel (932R); a power supply assembly (96), which is configured to supply power to at least the cutting assembly (10) and the travelling assembly (93), the power supply assembly (96) being mounted to the vehicle frame (91); and a steering wheel assembly (56), which comprises a steering wheel (561) for the user to rotate to control the direction of the riding-type mowing device (100), the steering wheel (561) comprising an initial position (5610) and a limiting position (5611). The riding-type mowing device (100) further comprises a travelling control module (124), wherein the travelling control module (124) is configured such that: when the steering wheel (561) rotates from the initial position (5610) to the limiting position (5611), the travelling control module (124) reduces a target rotation speed of the inner wheel and increases a target rotation speed of the outer wheel of the left driving wheel (932L) and the right driving wheel (932R).
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
B62D 11/04 - Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of separate power sources
B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performance; Adaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
Provided are an electric tool (100) and a control method therefor. The electric tool (100) comprises: an operation switch (13); a motor (11), which is connected to the operation switch (13), and is capable of being started in response to the switching-on of the operation switch (13) and being braked in response to the switching-off of the operation switch (13); and a control circuit (110), which is configured to control the working state of the motor (11). The control circuit (110) comprises: a drive circuit (111), which comprises a plurality of switch elements; a controller (112), which is coupled to the motor (11) and is capable of outputting a first control signal to control the motor (11) to start; and a parameter detection unit (120), which is used for detecting a working parameter of the motor (11), wherein the controller (112) is configured to: acquire a working parameter in response to the switching-on again of the operation switch (13) within a preset time after being switched off; and set a duty ratio of a second control signal according to the working parameter, so as to control the motor (11) to start again.
H02P 6/08 - Arrangements for controlling the speed or torque of a single motor
H02P 29/68 - Controlling or determining the temperature of the motor or of the drive based on the temperature of a drive component or a semiconductor component
B25B 21/00 - Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
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
An electric tool (1), comprising: a main housing (20), wherein a driving mechanism (30) is arranged inside the main housing; and a working head (10), which is connected to an end of the main housing (20) and rotates around a first axis (101) relative to the main housing (20), wherein the working head (10) comprises an output shaft (11), and the output shaft (11) is driven to rotate around a second axis (102) by means of a driving mechanism (30). The main housing (20) is provided with a window portion (14), and the window portion (14) is configured to display the internal structure of the electric tool. The electric tool has a high stability, is convenient to operate, maintenance or replacement of the internal structure thereof is convenient, and facilitates the achieving of various functions.
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 are an electric tool and a control method therefor. The electric tool comprises: a motor, comprising a rotor and a three-phase stator winding, the stator winding having a particular conduction angle during operation of the motor; a driving circuit, having multiple semiconductor switching elements; a parameter detection module, configured to detect a working parameter of the motor during operation; and a controller, electrically connected to at least the driving circuit and the motor. The controller is configured to: acquire the working parameter; and, according to the working parameter, correct the conduction angle of the stator winding during operation of the motor.
H02P 29/024 - Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
H02P 29/028 - Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load the motor continuing operation despite the fault condition, e.g. eliminating, compensating for or remedying the fault
H02P 29/40 - Regulating or controlling the amount of current drawn or delivered by the motor for controlling the mechanical load
Disclosed in the present application are a battery management system and a battery pack. The system comprises at least one battery pack and a battery management module. The battery pack comprises a plurality of battery cell groups; a power port, which is used for outputting power of the battery cell groups; a data acquisition module, which is connected to at least one battery cell group and is configured to acquire state data of the battery cell group connected thereto; and a data transmission module, which is connected to the data acquisition module and outputs the state data of the battery cell group in a wireless communication mode. The battery management module is in wireless communication with the data transmission module so as to obtain state data of the battery cell groups and to manage a use state of the battery pack according to the state data. The battery management module is arranged in the battery pack or in an electric tool or in an external terminal device.
A blade and a mower using same. The blade (30) comprises: a base (200) extending in a radial direction of the blade (30), the blade (30) rotating around a first axis (101) on the base (200); a cutting portion (300), formed extending outward from the base (200); and a raised portion (400), comprising a first raised portion (410) and a second raised portion (420) that are connected to one another, the first raised portion (410) being farther from the first axis (101) than the second raised portion (420). An included angle that is formed between a tangent line at any point on a first edge line (441) of an upper surface of the raised portion (400) and a first plane that is perpendicular to the first axis (101) is an exit angle, and the rate of change of an exit angle on the second raised portion (420) is greater than the rate of change of an exit angle on the first raised portion (410) in the radial direction of the blade (30).
Disclosed in the present application is a lawnmower, comprising: a cutting assembly, which comprises a first motor used for driving a cutting member to rotate; a chassis, which supports the cutting assembly; a travelling assembly, which comprises travelling wheels; and a second motor, which at least can drive the travelling assembly to drive the lawnmower to travel on the ground. The lawnmower is provided with a height adjustment mode, and, when the lawnmower is in the height adjustment mode, the second motor outputs power to adjust the height of the cutting assembly.
A ride-on mowing device, comprising: a vehicle frame (91); a cutting assembly (10), which comprises a cutter head (11) and a mowing element (12), the mowing element being at least partially accommodated in the cutter head, and the cutting assembly being mounted on the vehicle frame; a travelling assembly (93), which is configured to drive the ride-on mowing device to move; and a power supply assembly (96), which is configured to supply power to at least the cutting assembly and the travelling assembly and is mounted on the vehicle frame; the ride-on mowing device also comprises either a steering wheel assembly (56) or an operating lever assembly (52), the steering wheel assembly or the operating lever assembly being selectively mounted on the vehicle frame. The device can achieve free manipulation of both the travel direction and travel speed.
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, comprising a transmission mechanism (14, 22) and provided with transmission gears that enable an output shaft (132, 27) to output at different rotating speeds. The number of the transmission gears is greater than or equal to 3. The transmission mechanism (14, 22) comprises multiple stages of planetary gear sets. Each stage of planetary gear set comprises one layer of planetary gear in the axial direction. The total number of the planetary gear sets is less than or equal to that of the transmission gears. A first stage of planetary gear set (144), in the multiple stages of planetary gear sets, closest to a motor shaft (121, 231) comprises a first transmission state and a first speed change state. Any stage of one of the remaining planetary gear sets is connected to a clutch mechanism (15).
The present application discloses an energy supply apparatus for supplying power to an electric tool. The energy supply apparatus comprises: a housing, detachably connected to the electric tool in a matching manner and supported by the electric tool; a plurality of cells, supported by the housing of the energy supply apparatus; a charging terminal assembly, configured to be electrically connected to a charging device so as to charge the energy supply apparatus; and a discharging terminal assembly, configured to be electrically connected to the electric tool so as to provide electric energy for the electric tool. A charging rate of the energy supply apparatus is greater than or equal to 6C.
The present application discloses a battery pack configured to supply power to an electric tool. The battery pack comprises: a housing; a battery cell assembly, arranged in the housing and comprising a plurality of battery cell units; and further comprises: a heat absorption body made from a composite phase change material, the heat absorption body being in thermal contact with at least one battery cell unit for absorbing heat generated during the charging and discharging process of the battery pack. The composite phase change material comprises a phase change material constituting at least a part of a main body, and a phase change microcapsule added to the main body. By using the described technical solution, a battery pack that is compact in structure, effectively inhibits temperature rise and has a stable performance at high temperature is provided.
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 10/60 - Heating or cooling; Temperature control
C09K 5/06 - Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice-versa
An inclined saw (100), comprising: a workbench (12), a cutting mechanism (11), a support seat (123) connected to the cutting mechanism and the workbench, and a first locking mechanism (14); when the first locking mechanism (14) is in a first state, said mechanism locks the cutting mechanism and rotates relative to the workbench by using a first axis (101) as an axis; when the first locking mechanism (14) is in a second state, said mechanism allows the cutting mechanism to rotate relative to the workbench by using the first axis as an axis; and when the first locking mechanism (14) is in a third state, said mechanism cooperates with the support base (123) so as to position the rotation of the cutting mechanism by using the first axis as a rotating shaft; and the first locking mechanism comprises a first operating member (141), which is used for switching the first state, the second state, and the third state of the first locking mechanism. The described inclined saw is simple and convenient to operate.
B23D 45/14 - Sawing machines or sawing devices with circular saw blades or with friction saw discs for cutting otherwise than in a plane perpendicular to the axis of the stock, e.g. for making a mitred cut
B27B 5/29 - Sawing machines working with circular saw blades; Components or equipment therefor - Details; Component parts; Accessories
B23D 45/04 - Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade or the stock carried by a pivoted lever
Disclosed in the present application is a ride-on lawn mowing apparatus, comprising: a seat on which a user sits, the seat comprising a seat cushion and a backrest; a frame supporting the seat; a cutting assembly, comprising a cutter head and lawn mowing elements for mowing grass, at least some of the mowing elements being accommodated in the cutter head, and the cutting assembly being mounted on the frame; a traveling assembly for driving the ride-on lawn mowing apparatus to travel; a control circuit board for controlling at least the cutting assembly and the traveling assembly; and a power supply assembly for supplying power to at least the cutting assembly and the traveling assembly, at least part of the control circuit board being arranged between the seat and the power supply assembly.
The present disclosure discloses a self-propelled working machine and a lawn mower, the lawn mower comprising: a first walking assembly and a first driving motor that drives the first walking assembly; a second walking assembly and a second driving motor that drives the second walking assembly; and a control circuit, that can control the operation of the first driving motor or the second driving motor, wherein the control circuit is configured for: controlling one among the two driving motors to operate by using a first control means, and controlling the other among the two driving motors to operate by using a second control means, output parameters of the first control means being used as input parameters of the second control means.
Disclosed in the present application are an electric tool, a mower, a data communication method, a battery pack and a tool system. The electric tool comprises: a transmission line, which can transmit electrical power or communication data; a plurality of functional modules, which are electrically connected to the transmission line, and can selectively receive communication data from the transmission line or transmit communication data to the transmission line, wherein the transmission frequency at which the transmission line transmits the communication data is greater than or equal to 1 KHz.
A walk-behind power tool, comprising: a main body (11), comprising a locomotion assembly (111) and a driving assembly for driving the locomotion assembly; a handle device (13), comprising a holding portion (131) for a use to hold; and a connecting rod assembly (12) for connecting the main body to the handle device. The walk-behind power tool further comprises a display device (14) which can display information related to the walk-behind power tool. The walk-behind power tool facilitates acquisition of working information of a working machine by a user, thereby improving use convenience of a user.
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
A riding lawn mower is provided including: a seat for a user to sit thereon; a chassis configured to support the seat; a walking assembly including at least one first walking wheel and at least two second walking wheels, which are a left second walking wheel and a right second walking wheel, the walking assembly further including a left walking motor for driving the left second walking wheel and a right walking motor for driving the right second walking wheel. A walking control system is configured to control the left walking motor and the right walking motor; wherein 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, calculate a difference of the first feedback current of the left walking motor and the first feedback current of the right walking motor, and when the 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.
A sanding machine, comprising an airflow element (11), a motor (51), and a battery pack. The airflow element (11) can rotate around a central axis (102) along a preset rotation direction to generate a chip removal airflow; the motor (51) provides power to the airflow element (11); and the battery pack provides energy to the motor (51). When the sanding machine is in a no-load state, and the battery pack consumes 10 WH energy, the working duration of the sanding machine is defined as a functional time T of the sanding machine. The product between the no-load rotation speed N of the motor and the functional time T of the sanding machine is greater than or equal to 63,000 rpm.min, and is less than or equal to 120,000 rpm.min. The sanding machine is small in dust collection resistance and long in endurance time.
A power tool (100), a handle system (200) suitable for a power tool (100), and a snow sweeper (600). The power tool (100) comprises: a handle component (110, 210), a power supply, and a temperature control module (220); the handle component (110, 210) comprises a left grip portion (611) and a right grip portion (612), a first end of the left grip portion (611) is coupled to the body (120) of the power tool (100), a second end of the left grip portion (611) is coupled to a first end of the right grip portion (612), and a second end of the right grip portion (612) is coupled to the body (120) of the power tool (100); the temperature control module (220) is coupled to the handle component (110, 210) and to the power supply; and the power supply is configured to supply power to the temperature control module (220), so that the temperature control module (220) is configured to heat the handle component (110, 210).
A riding lawn mower is provided including: a seat; a chassis; a walking assembly configured to drive the riding lawn mower to walk, the walking assembly includes at least one first walking wheel and two second walking wheels, a left walking motor and a right walking motor; a left operating member operable by the user to generate a left operational amount; a right operating member operable by the user to generate a right operational amount; a walking motor control module configured to receive at least one of the left operational amount or the right operational amount, and control at least one of the left walking motor or the right walking motor; wherein the walking motor control module includes a target speed calculation unit, the target speed calculation unit including: an input unit configured to generate a left reference speed and a right reference speed from at least one of the left operational amount or the right operational amount; a decoupling unit configured to generate a first velocity and a second velocity from the left reference speed and the right reference speed; a processing unit configured to independently obtain a first processed velocity from the first velocity and obtain a second processed velocity from the second velocity; and an output unit configured to generate a left target speed for the left walking motor or a right target speed for the right walking motor from the first processed velocity and the second processed velocity.
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
H02P 6/06 - Arrangements for speed regulation of a single motor wherein the motor speed is measured and compared with a given physical value so as to adjust the motor speed
Embodiments of the present application belong to the technical field of electric tools, and disclose a gardening tool. The gardening tool comprises: a motor; a housing, wherein a front handle and a rear handle for a user to hold are formed on or connected to the housing, the front handle is held by one hand of the user, and the rear handle is held by the other hand of the user; a first operation switch, the first operation switch being controlled by the front handle; a second operation switch, the second operation switch being controlled by the rear handle; and a controller, which is used to control the motor according to a sequence of turning on the first operation switch and the second operation switch.
A riding lawn mower (100) includes a seat (15), a chassis (16), a wheel (121, 122), a motor (123) configured to drive the wheel (121, 122) to rotate, a walking control module (124) configured to drive the motor (123), a power supply assembly (14) configured to at least supply electric power to the motor (123) and the walking control module (124), a cutting assembly (11) mounted to the chassis (16), and a pedal assembly (131) including a pedal lever (1312) rotatable about a first shaft axis (101) to control a walking speed of the riding lawn mower (100) when operated by the user. When the pedal lever (1312) is in an initial position and the power supply assembly (14) is supplying electric power to the motor (123) and the walking control module (124), the walking control module (124) controls the riding lawn mower (100) to park. The pedal assembly (131) provides a stronger and quicker control of the walking process of the riding lawn mower (100).
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
54.
RIDING LAWN MOWER, DISPLAY INTERFACE OF A POWER TOOL AND RIDING MACHINE
A riding lawn mower (100) includes a seat (15) for a user to sit thereon, a chassis (16) configured to support the seat (15), a cutting assembly (11) mounted to the chassis (16), a walking assembly (12) configured to drive the riding lawn mower (100) to walk on a plane, and a steering wheel assembly (136) including a steering wheel (1362) operable by the user and a connecting rod (1361) configured to connect the steering wheel (1362) and the chassis (16). The steering wheel assembly (136) further includes a pivot assembly (1368) that connects the connecting rod (1361) and the chassis (16). The pivot assembly (136) enables the steering wheel assembly (136) to switch between a working position and a storage position. A distance between the steering wheel (1362) and the plane when the steering wheel assembly (136) is in the storage position is smaller than a distance between the steering wheel (1362) and the plane when the steering wheel assembly (136) is in the working position. The steering wheel assembly (136) makes a smaller packing dimension during transportation and storage of the riding lawn mower (100). A display interface of a power tool and a riding machine are provided.
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
55.
COMMUNICATION SYSTEM, METHOD AND APPARATUS APPLIED TO ELECTRIC TOOL, AND ELECTRIC TOOL
The embodiments of the present application belong to the technical field of communications. Disclosed are a communication system, method and apparatus applied to an electric tool, and an electric tool. The system comprises an external device and an electric tool, wherein a first electronic tag is provided on the electric tool; the first electronic tag is configured to send connection information of the electric tool to the external device in response to the external device approaching the first electronic tag; the external device is configured to send a first connection request to the electric tool on the basis of the connection information of the electric tool; and the electric tool is configured to establish a connection with the external device in response to the first connection request.
H04W 4/80 - Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
A cutting tool, comprising: a machine shell (10) provided with a storage cavity (11) and a gripping part (12) to be gripped by a user; a power assembly (20) located in the storage cavity (11) and used for providing a driving force; a gearbox (30) at least partially located in the storage cavity (11); a transmission assembly (40) at least partially located in the gearbox (30) and connected to the power assembly (20); a reciprocating assembly (50) located in the gearbox (30) and connected to the transmission assembly (40), wherein the reciprocating assembly (50) is configured to move in a reciprocating manner relative to the machine shell (10), and the reciprocating assembly (50) comprises a mounting part (62) that can be used for mounting a cutting accessory; and a first supporting piece (60) mounted on a front end of the machine shell (10) and used for supporting a workpiece, wherein the ratio of the distance between a rear end of the gearbox (30) and a front end of the first supporting piece (60) to a reciprocating stroke of the reciprocating assembly (50) is larger than or equal to 4 and less than or equal to 9.
B23D 49/16 - Hand-held or hand-operated sawing devices with straight saw blades actuated by electric or magnetic power or prime movers
B23D 49/10 - Hand-held or hand-operated sawing devices with straight saw blades
B23D 51/16 - Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of drives or feed mechanisms for straight tools, e.g. saw blades, or bows
A nail gun (100), comprising: a housing (11) provided with an accommodation space; an air cylinder (13) connected to the housing (11) and used for storing a gas; a firing assembly (16) which is at least partially disposed in the air cylinder (13) and can be moved from an initial position to a firing position in the air cylinder (13) to eject a nail; a power output assembly (12) disposed in the accommodation space formed in the housing (11) and used for outputting a driving force to drive the firing assembly (16) to move in the air cylinder (13); a driving wheel (125) connected to an output shaft (124) of the power output assembly (12), and adapted to be driven by the power output assembly (12) to drive the firing assembly (16) to move in the air cylinder (13). The driving wheel (125) has a first driving tooth (125b) and a second driving tooth (125d); the tip circle radius (R1) of the first driving tooth (125b) is less than the tip circle radius (R2) of the second driving tooth (125d); the first driving tooth (125b) is a driving tooth provided at the starting end of the driving wheel (125), and the first driving tooth (125b) is engaged with the firing assembly (16) when the driving wheel (125) starts to drive the firing assembly (16) to reset.
The present application discloses a power supply device and a control method thereof. The power supply device comprises: a housing; a first energy storage device, which comprises at least one first energy storage element detachably mounted to the housing; a second energy storage device, which comprises at least one second energy storage element disposed in the housing; a power output interface, which is configured to output power to an external electrical device; a discharging circuit, which is electrically connected to the power output interface, and is further electrically connected to the second energy storage device and the first energy storage device; and a controller, which controls a discharge state of the discharging circuit. The controller controls the discharging circuit such that the first energy storage device discharges and the second energy storage device does not discharge when a first power parameter value of the first energy storage device is higher than a first preset value, and the first energy storage device does not discharge and the second energy storage device discharges when the first power parameter value of the first energy storage device is lower than the first preset value.
A toolbox system, comprising: a storage box (31) provided with an accommodation cavity (310), the accommodation cavity (310) being used for storing an article, and the storage box (31) comprising a limiting portion (31a) formed on a storage box body; and an externally hanging assembly (50) detachably connected to the article. The externally hanging assembly (50) comprises an externally hanging member (52). The externally hanging member (52) is detachably connected to the article. The limiting portion (31a) comprises a limiting surface (260) and/or a limiting hole (270) that cooperate with a mounting portion (311b) of the externally hanging assembly (50). According to the toolbox system, more articles can be connected.
Provided is a hand-pushed power tool, comprising: a tool body (20) that comprises a working assembly and a control unit (22); a handle device (10, 30, 40) connected to the tool body (20), the handle device (10, 30, 40) comprising an operating component (11, 31, 41) and a connecting rod assembly (12, 32, 42) that comprises first connecting rods (121, 321, 421) connected to the tool body (20), the first connecting rods (321, 421) each comprising a first lower rod portion (321b, 421b) and a first upper rod portion (321a, 421a), the first lower rod portions (321a, 421a) being connected to the tool body (20), the first upper rod portions (321a, 421a) being connected to the operating component (31, 41), the first upper rod portions (321a, 421a) being slidable relative to the first lower rod portions (321b, 421b) along a first straight line to a retracted position and an extended position, and when the first upper rod portions (321a, 421a) are in the retracted or extended position, the handle device (30, 40) being in a retracted or extended state; a detection device (34, 44) that comprises a first detection element (341, 441) for detecting the retracted/extended state of the handle device (30, 40); and a control device (33, 43) mounted to the operating component (31, 41), the first detection element (341, 441) being electrically or communicatively connected to the control device (33, 43). The control device (33, 43) is configured to control the control unit (22) according to detection information of the first detection element (341, 441).
A01D 34/412 - Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
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 75/20 - Devices for protecting men or animals
A mower (100), comprising: a host (20), which comprises a working assembly and a control unit; and a handle device (10), which is connected to the host (20). The handle device (10) comprises: a connecting rod assembly (12) comprising a first connecting rod (121), which is connected to the host (20); and an operating member (11), which comprises a holding portion (111) for a user to hold. The mower (100) further comprises: a wireless remote control device (15), which is mounted on the handle device (10) and outputs, in a wireless communication manner, a control signal to a control unit of the host (20) to control the working assembly to work, and also comprises: a solar panel, which is mounted on the handle device (10) and supplies power to the wireless remote control device (15). A wireless remote control handle device, comprising: a connecting rod assembly (12) comprising a first connecting rod (121), which is connected to a tool host; an operating member (11), which comprises a holding portion (111) for a user to hold; a wireless remote control device (15), which is mounted on the operating member (11); and a power supply module (16), which is mounted on the operating member (11) and used to supply power to the wireless remote control device (15), wherein the power supply module (16) is electrically connected to the wireless remote control device (15). In this way, the mower and the wireless remote control handle device, which can perform wireless remote control and have a high reliability and simple structure, are provided.
Disclosed in the present application is an outdoor travel device, comprising: a main body; a travel wheel set, comprising traveling wheels supporting the main body; a first energy storage apparatus, configured to supply power to the outdoor travel device, the first energy storage apparatus comprising at least one first energy storage unit; a second energy storage apparatus, configured to supply power to an outdoor travel device, the second energy storage apparatus comprising at least one second energy storage unit; and a connecting component, configured to mount the second energy storage apparatus to the main body. The first energy storage apparatus is detachably mounted to the main body, and the first energy storage apparatus is further configured to able to be detached from the host to supply power to another electrical tool. A first energy storage unit comprises a first positive electrode made of a first material and a second energy storage unit comprises a second positive electrode made of a second material. The present application provides an outdoor travel device which is more flexible in discharging and can improve a battery life of outdoor travel device.
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
B60K 1/04 - Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
An angle grinder, comprising: a housing; an electric motor supported by the housing; a switch component for controlling the starting of the electric motor; and an operation component for operating to trigger the switch component. The switch component comprises a contact; a membrane, which can be pushed by the operation component to be in contact with the contact; and a package, wherein the membrane and the contact are mounted on the package.
Provided are a power tool (10) and a control method, the power tool (10) comprising: a housing (11); a motor (13); a drive circuit (24); a control module (25); and a current detection module (27); the control module (25) is configured for acquiring a phase current value of the motor (13) in real time within a periodic time interval; when the acquired phase current value exceeds a preset current threshold, within the remaining time of the current time interval, turning off an electronic switch currently in a conducting state and, when the current drive signal period ends, turning on an electronic switch currently controlled by the control module (25) to conduct; the duration of each time interval in the periodic time interval is the same as the current corresponding period of the drive signal; and the period of the drive signal changes randomly within a second preset period range. The present solution can effectively suppress large currents under heavy load working conditions, without affecting the feeling of use of the power tool (10).
H02P 29/20 - Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors for controlling one motor used for different sequential operations
H02H 7/08 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from norm for dynamo-electric motors
A walk-behind self-propelled working machine, comprising: a main unit (301), comprising a walking assembly (304) and a motor (305) for driving the walking assembly; a handle device (30), comprising an operating member (31) and a holding portion (311) for a user to hold; a connecting rod assembly (32), comprising a first connecting rod (321) connected to the main unit (301); a sensing device (43a), used for sensing thrust applied to the handle device (30) to drive the walk-behind self-propelled working machine; and a triggering assembly (35), capable of applying an acting force to the sensing device (43a) when the holding portion (311) is subjected to the thrust, wherein the trigger assembly (35) is connected to the connecting rod assembly (32), and the sensing device (43a) is connected to the operating member (31). The device can reduce the labor intensity of an operator during mowing.
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 34/00 - Mowers; Mowing apparatus of harvesters
A torque output tool (100), comprising: a housing (110); a motor (120) provided in the housing; an output shaft (130) capable of being connectable to and driving a working accessory to rotate; and a transmission assembly (200). The transmission assembly comprises: a driving wheel (210) capable of being driven by the motor to drive the output shaft to rotate around a first axis; a shaft locking ring (220) arranged around the output shaft; and a plurality of locking pillars (230) provided in the shaft locking ring and arranged around the output shaft. The torque output tool further comprises a partition (240) provided between the driving wheel and the shaft locking ring, and used for separating the locking pillars and at least a part of the driving wheel. By providing the partition, the wear of the driving wheel is reduced, such that the movement of the locking pillars is more stable.
An intelligent mowing system and an intelligent mowing device. The intelligent mowing system comprises a working region defined by a first boundary line, a non-working region defined by a second boundary line, and the intelligent mowing device; and further comprises: a control module (10), which is configured to control the intelligent mowing device to travel in the working region or on the first boundary line or on the second boundary line; a positioning module (30), which is configured to position location information of the intelligent mowing device; and a data acquisition module (40), which is configured to acquire region data from the length of a preset range of the current location of the intelligent mowing device, the preset range being greater than or equal to zero. The control module (10) is configured to acquire the region data of the intelligent mowing device when the intelligent mowing device works in a boundary traveling mode which travels along the first boundary line or the second boundary line, and control the intelligent mowing device to travel along the first boundary line according to the relationship between the region data and a data threshold.
A blower (100), comprising: a motor (110); a fan (120), being driven by the motor (110) to rotate about a central axis (101); a battery pack (130), for supplying power to the motor (110); an air duct assembly (140), forming an air inlet (141) for air intake and an air outlet (142) for air outlet; and further comprising: a first handle (150), forming a first holding portion (151) for holding; and a second handle (160), forming a second holding portion (161) for holding. At least part of projection of the battery pack (130), in the radial direction of the central axis (101), on a plane (102) passing through the central axis (101) is located between the first handle (150) and the second handle (160). The blower (100) facilitates reducing the burden when a user uses the blower (100).
E01H 1/08 - Pneumatically dislodging or taking-up undesirable matter; Drying by heat only, or by streams of gas; Cleaning by projecting abrasive particles
Disclosed in the present application are a battery pack and a power tool. The battery pack comprises a housing; a battery cell assembly, which comprises a plurality of battery cell units in a stacked layout; elastic pads, which are respectively arranged between adjacent battery cell units, air cavities being formed between elastic pads and adjacent battery cell units; a sealing member, which is at least arranged on a surface of the battery cell assembly, a sealed cavity being formed from the sealing member and the housing; and an air passage element, which is partially arranged on a side face of the battery cell assembly, extends into a plurality of air cavities along a first direction, and is in communication with air outside of the sealed cavity.
The present application discloses a grass trimmer, comprising: a grass trimming head; a driving apparatus, which comprises a motor used for driving the grass trimming head to rotate around a first axis; an operating apparatus, which comprises a first housing used for connecting a power supply apparatus to supply power to the motor; and a connecting apparatus, which connects the driving apparatus and the operating apparatus. The first housing is formed with an arm rest part for leaning, a joint part joined to the power supply apparatus, and a connecting part connected to the connecting apparatus. The arm rest part is located behind the connecting part, and the arm rest part is configured to be squeezed by an arm when the grass trimmer is operated. An air inlet is provided between the joint part and the connecting part, and the air inlet communicates with the interior of the first housing. The grass trimmer is comfortable to operate and has a long service life.
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
A multi-head electric tool, comprising: a power assembly (100), which is configured to mount at least one working assembly (200); a working assembly, which is configured to work under the drive of the power assembly; a drive motor (21), which drives the working assembly mounted on the power assembly to work; a power supply device (103), which is configured to provide power to the drive motor; and a controller (11), which is configured to control, according to a target control program that matches the working assembly, the drive motor to rotate. The working assembly is provided with an optical signal transmitting device (22), and an optical signal output device is configured to output an assembly signal carrying working assembly identification information; the power assembly is provided with an optical signal receiving device (11), optical signal receiving device is configured to receive the assembly signal and identify the working assembly identification information in the assembly signal; and the controller can obtain the working assembly identification information, extract the target control program that matches the working assembly identification information, and control, according to the target control program, the drive motor to rotate, so as to drive the working assembly to work.
B25F 3/00 - Associations of tools for different working operations with one portable power-drive means; Adapters therefor
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 is a handheld electric tool, comprising: a machine housing comprising a machine cylinder and a head housing; a driving mechanism, comprising an electric motor and a drive shaft, the electric motor outputting power by means of the drive shaft; a transmission mechanism comprising a gear assembly; and an output mechanism comprising an output shaft used for outputting power to the outside, wherein the output mechanism is at least partially arranged in the head housing, and the transmission mechanism is in transmission connection with the driving mechanism and the output mechanism. The machine cylinder is provided with a first accommodating cavity and a second accommodating cavity, the electric motor is at least partially mounted in the first accommodating cavity, and the gear assembly is at least partially mounted in the second accommodating 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 5/02 - Construction of casings, bodies or handles
H02K 7/12 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with auxiliary limited movement of stators, rotors or core parts, e.g. rotors axially movable for the purpose of clutching or braking
B23B 45/02 - Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor driven by electric power
73.
SELF-PROPELLED DEVICE AND COLLISION DETECTION METHOD THEREOF
The present application discloses a collision detection method of a self-propelled device. The automatic traveling device comprises a self-propelled motor driving wheels to rotate. The collision detection method comprises: measuring a current of a self-propelled motor in real time, and calculating a change rate of the current of the self-propelled motor; measuring a rotating speed of the self-propelled motor in real time, and calculating a change rate of the rotating speed of the self-propelled motor; and determining, at least according to the change rate of the current and the change rate of the rotating speed, whether collision with the self-propelled motor occurs.
B25J 19/00 - Accessories fitted to manipulators, e.g. for monitoring, for viewing; Safety devices combined with or specially adapted for use in connection with manipulators
Provided in the present application is an electric tool, comprising a housing, an electric motor, a switch, an operation element, a trigger rod, a pressing block and a reset element, wherein the electric motor is disposed in the housing; the switch comprises a trigger point for controlling the electric motor to start; the operation element is operated to trigger the switch; the trigger rod is supported by the housing, and the operation element can push the trigger rod to move; the pressing block is elastically connected to the trigger rod, and the pressing block can be driven by the trigger rod to push the trigger point; and the reset element is connected to the trigger rod.
Disclosed in the present application is an electric screwdriver, comprising: a shell; an electric motor, which comprises an electric motor shaft that can rotate around an electric motor axis; an output assembly, which comprises an output shaft that can move back and forth in a first axis direction; and a transmission assembly, which is configured to transmit power output by the electric motor shaft to the output shaft. The electric screwdriver further comprises: a starting circuit, which is configured to start the electric motor, wherein the starting circuit comprises: a switch assembly, which controls a conducting state of the starting circuit; and an activation assembly, which comprises a detection element that is in electrical connection or signal connection with the electric motor, and an activation element that is configured to activate the detection element. The output shaft can drive the detection element to move, and the detection element involves an activated state during a movement process, wherein when the detection element is in the activated state and the switch assembly is in a conducting state, the electric motor is started.
The present application provides a pipe cleaning machine, comprising: a handle for holding; a drum connected to the handle and capable of rotating relative to the handle; a cable provided in the drum; a motor driving the cable to rotate, the motor comprising a motor shaft extending along a first axis; and a cable feeding assembly for feeding the cable. The drum comprises an exposed portion exposed to air, and 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
Provided are an electric tool and a control method therefor. The tool comprises: a motor (201); a battery pack (203) which provides a power supply; a switching circuit (202) which outputs a power-on signal or a power-off signal; a first switching device (204) used for controlling the powerup state of the motor; a second switching device (Q1) used for driving the motor to rotate; and a controller (205) which is electrically connected to at least the first switching device (204), the switching circuit (202), and the second switching device (Q1). The controller (205) is configured to: when detecting a power-on signal, control the first switching device (204) and the second switching device (Q1) to control, in a first working mode, the motor to rotate; and when detecting a power-off signal, control the first switching device (204) and the second switching device (Q1) to control, in a second working mode, the motor to rotate.
H02P 7/29 - Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation
H02P 3/14 - 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 a dc motor by regenerative braking
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 6/08 - Arrangements for controlling the speed or torque of a single motor
A power tool and a control method therefor, the power tool comprising a motor, and the motor comprising a rotor and a multi-phase stator winding; a drive circuit, having a plurality of switch units used for outputting a switch signal to drive the motor to rotate; and a controller, being electrically connected at least to the drive circuit and the motor; the controller is configured to: acquire rotor position information of the motor; and, on the basis of the rotor position information, adjust the synthetic magnetic potential of the motor such that the output electrical parameters of the motor corresponding to the synthetic magnetic potential are within a preset parameter range.
H02P 6/00 - Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
H02P 21/00 - Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
Disclosed in embodiments of the present application is a battery pack, comprising: a plurality of cell units; a housing, forming an accommodating cavity at least for accommodating the plurality of cell units, the accommodating cavity being a closed space; and a heat insulation body, disposed on the outer side of the plurality of cell units, the heat insulation body being internally filled with a working medium for dissipating heat from the cell units, wherein when at least one of the plurality of cell units reaches a preset temperature, the working medium changes from a liquid phase to a gaseous state to dissipate heat from the cell unit.
The present application provides a cutting tool, comprising: a motor, supported by a housing; an accessory mounting portion, comprising an output member connected to a grinding disc; a transmission mechanism connected to the motor and the output member; and a bottom plate disposed at the bottom of the housing and provided with a mounting hole for the grinding disc to pass through. The cutting tool further comprises: a battery pack connector configured to be detachably connected to a battery pack; a liquid storage system comprising a liquid storage device, which is configured to store a liquid, the liquid storage device being detachably mounted on the housing; and a system control element, disposed on a liquid flow path of the liquid storage system and used for controlling the flow state of the liquid in the liquid storage device. The motor is a brushless motor, and the lowest speed of the motor is not lower than 7000 revolutions per minute.
Provided is a misting fan, comprising: a fan assembly comprising fan blades and an electric motor for driving the fan blades to rotate; a nozzle arranged on the fan assembly for spraying water mist; and a frame for supporting the fan assembly, wherein the frame comprises an extension portion that can be placed and extend in a plane; and the misting fan is provided with a moving wheel to implement walking, and the moving wheel is arranged in the extension portion.
A charging station capable of guiding a self-driving device to dock, the station comprising: a bottom plate (72), which is mounted in a working area so as to secure a self-driving device (10); a first conductive wire (73), which surrounds the bottom plate, is independent of the boundary line, and is connected to a signal generator (75); a second conductive wire (74), which surrounds the bottom plate, is independent of the boundary line and the first conductive wire, and is connected to the signal generator; the signal generator sends a guiding signal to the first conductive wire and/or second conductive wire, wherein a first region having a first magnetic field signal, a second region having a second magnetic field signal, and a third region having a third magnetic field signal are at least comprised in a plurality of regions formed by the encompassment of the first conductive wire and the second conductive wire.
A charging system and a charger. The charging system comprises a battery pack and a charger. The charger comprises: a charging input interface (112) for accessing a first alternating current; a first rectifying and filtering circuit (142) for converting the first alternating current into a first direct current; a conversion circuit (15) for modulating the first direct current to output a second alternating current; a second rectifying and filtering circuit (143) for converting the second alternating current into a second direct current; and a control circuit (146) for controlling the conversion circuit, the conversion circuit comprising: a transformer (152) for converting a direct current into an alternating current; and a switch circuit (151) connected to the first rectifying and filtering circuit and the transformer. The switch circuit comprises a switch element (151a). The switch element comprises a control end (151b) electrically connected to the control circuit. The control circuit controls the switch element to switch on and switch off at a switching frequency greater than or equal to 150 kHz and less than or equal to 1,000 kHz. The charger in the charging system is small in size, light in weight, and convenient for a user to carry, which reduces cost.
Disclosed is an intelligent mower, comprising: a camera, which is used for collecting image data of the environment surrounding the intelligent mower; an inertial measurement unit, which is used for detecting pose data of the intelligent mower; a memory, which is at least used for storing an application program for controlling the intelligent mower to work or travel; and a processor, which is used for calling the application program to perform simultaneous localization and mapping of the intelligent mower by means of fusing the image data collected by the camera and the pose data acquired by the inertial measurement unit, and generate navigation and mowing action instructions.
The present application discloses a charging device and a charging system. The charging device comprises: a housing; a power interface used to be connected to a power supply; and a charging interface arranged on the housing and used to be detachably connected to a battery pack, wherein the charging interface comprises: a charging terminal, used to be connected to a charging terminal of the battery pack, a communication terminal, used to be connected to a communication terminal of the battery pack so as to obtain communication information of the battery pack, and a communication module, used to receive the communication information of the battery pack which is inputted by means of the communication terminal; and a power conversion circuit connected to the power interface to convert the connected power supply into charging electric energy of the battery pack and power supply electric energy of the communication module. The charging device further comprises: a communication protection module connected between the communication terminal and the communication module and used to isolate an interference voltage signal higher than or equal to a preset voltage value so as to protect the communication module.
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02P 29/028 - Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load the motor continuing operation despite the fault condition, e.g. eliminating, compensating for or remedying the fault
H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
A sanding machine (100), comprising: a machine housing (10); an electric motor (21) at least partially arranged in the machine housing (10) for providing a power source, the electric motor (21) comprising an electric motor shaft (211) that rotates around an electric motor axis; a fan assembly (30) comprising a fan (31) connected to the electric motor; an eccentric element (50) driven by the electric motor (21), the eccentric element (50) having a central axis (102) arranged offset from the electric motor axis (101); and a bottom plate assembly (40) comprising a bottom plate (41), a polishing member fixed to a lower surface (412) of the bottom plate (41), and a support member (42) for supporting the eccentric element (50). The support member (42) comprises a first end face (421) and a second end face (422) arranged opposite each other, and the second end face (422) is arranged, relative to the first end face (421), on the side close to the lower surface (412); the sanding machine (100) further comprises a balance block (61) which is connected to the eccentric element (50) and driven by the electric motor to rotate around the central axis (102); and the ratio of the distance between the center of mass of the balance block (61) and the lower surface (412) of the bottom plate to the distance between the first end face (421) of the support member and the lower surface (412) of the bottom plate is greater than or equal to 0.2 and less than or equal to 0.4. The product of the weight of the fan and the square of the outer diameter of the fan is greater than or equal to 40 kg/cm2and less than or equal to 200 kg/cm2.
Provided are a smart electric power tool and control method. Comprised are: an output shaft (101), a motor (201), a housing (102), and an adjustment assembly (103); the adjustment assembly is used for adjusting an operating mode and outputting a mode signal, the operating mode comprising a drill gear mode and a wood screw mode; in the drill gear mode, a measurement unit (202) is used for measuring an electric current value; a controller (203) receiving the mode signal, and determining a set of electric current variables according to the operating mode and the measured electric current value; according to the set of current variables, determining whether startup has ended; after the end of startup, determining a set of feature quantities from the set of current variables; determining the type of drill bit according to the set of feature quantities; according to the set of current variables and/or the set of feature quantities and the type of drill bit, determining the operating status of the smart electric power tool, and if in a state of penetrating, then controlling the motor to stop turning; in the wood screw mode, the measurement unit measuring a bus bar current value; the controller determining a first measurement value according to the measured bus bar current value; according to the first measurement value, determining whether startup has ended; after startup has ended, identifying the slipping conditions of the smart electric power tool according to the first measurement value, and filtering the amount of variation of the first measurement value under the slipping conditions; determining a second measurement value according to the filtered first measurement value; if the first measurement value and the second measurement value after filtering satisfy a preset condition, then the smart electric power tool triggers a stop.
B25B 21/00 - Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
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
G05B 19/416 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control of velocity, acceleration or deceleration
The present application discloses an electric tool, comprising: a motor, comprising a stator winding and a rotor rotating around a stator; a speed regulating mechanism, at least used for setting a target rotating speed of the motor; a drive circuit, used for transmitting electric energy provided by a power source apparatus from a direct current bus to the motor, the drive circuit comprising a plurality of electronic switches connected between the power source apparatus and the motor; and a control module, configured to calculate and generate a voltage vector according to an actually measured rotating speed of the motor, a phase current of the stator winding and the target rotating speed, and modulate the voltage vector to output a pulse width modulated signal to the drive circuit, wherein the value of a per-unit value of the amplitude of the voltage vector ranges from 0 to 1.15. By means of the technical solution, the output power of the electric tool can be increased.
H02P 21/00 - Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
H02P 21/22 - Current control, e.g. using a current control loop
H02P 25/026 - Synchronous motors controlled by supply frequency thereby detecting the rotor position
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
89.
BATTERY PACK, ELECTRIC TOOL SYSTEM, AND CHARGING SYSTEM
Disclosed are a battery pack, an electric tool using a battery pack and a charger. The battery pack comprises: a housing having a first material; a battery cell assembly disposed inside the housing, wherein the battery cell assembly comprises multiple battery cell units, and the battery cell unit comprises a battery cell positive electrode and a battery cell negative electrode; and battery cell support members having a second material and used to support at least the battery cell assembly, wherein the battery cell support members are disposed at least at two ends of the battery cell assembly, at least a portion of the battery cell support members encapsulate the battery cell positive electrode and the battery cell negative electrode, and the first material is different from the second material.
An electric hammer having a drill mode and a hammer drill mode. The electric hammer comprises: an output assembly (50), an impact assembly (40), a clutch assembly (80), and a switching assembly (70). The output assembly (50) comprises a sleeve (51); the impact assembly (40) comprises a swing rod bearing (40a) and an impact block (44); the clutch assembly (80) has a first state of driving the swing rod bearing (40a) to move along with a mounting shaft (31) and a second state of allowing the mounting shaft (31) to rotate with respect to the swing rod bearing (40a); the switching assembly (70) is configured to cause the clutch assembly (80) to switch between the first state and the second state; the switching assembly (70) comprises a switching element (71); the switching element (71) comprises a force-receiving end (711) and a drive end (712); when moving along a first axis, the output assembly (50) drives the force-receiving end (711) to move; the drive end (712) is configured to drive the clutch assembly (80) to switch to the first state; and the switching element (71) is disposed on the lower side of the first axis. The electric hammer is simple in structure and convenient for a user to perform function switching.
A lawn mower, comprising: a mowing element, which can be driven for mowing; a cutting motor, which drives the mowing element to move; an operating device, which is held by a user to control the action of the lawn mower, wherein the operating device can be triggered by the user to select a working mode according to cut grass processing modes under different working conditions and output an identification signal; and a control module, which receives the identification signal, determines the working mode of the lawn mower according to the identification signal and controls the cutting motor to work at a corresponding rotation speed. By using the above technical solution, the energy utilization efficiency can be improved, such that the endurance time of a lawn mower is prolonged, misoperation is prevented, and the user experience is improved.
A chainsaw, comprising: a housing; a motor; a transmission system; a control system, comprising a circuit board assembly; and a power supply assembly. The circuit board assembly obliquely intersects a first straight line. In a second straight line direction perpendicular to the first straight line direction and extending along the up and down direction, the motor has a projection surface perpendicular to the second straight line direction along the second straight line direction, and the circuit board assembly has a projection surface perpendicular to the second straight line direction along the second straight line direction. The projection surface of the motor along the second straight line direction at least partially overlaps with the projection surface of the circuit board assembly along the second straight line direction. The power supply assembly has a projection surface perpendicular to the first straight line direction along the first straight line direction, and the circuit board assembly has a projection surface perpendicular to the first straight line direction along the first straight line direction. The projection surface of the power supply assembly along the first straight line direction at least partially overlaps with the projection surface of the circuit board assembly along the first straight line direction.
A power tool, comprising: a casing; a power mechanism comprising a rotatable drive shaft; a polarization mechanism for generating swinging; and an output mechanism comprising a mounting member in transmission connection with the polarization mechanism. The power tool further comprises: an airflow element, which is connected to the drive shaft and is driven by the drive shaft to rotate to generate an airflow; a heat conduction portion supported on the drive shaft, with the airflow element being arranged on the periphery of the heat conduction portion; an air inlet provided on the casing to allow the airflow to enter; and an air outlet provided downstream of the air inlet on the casing to allow the airflow to flow out. The polarization mechanism comprises: a supporting assembly sheathed over the drive shaft; and a swinging member configured to be driven by the supporting assembly to swing.
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
B24B 23/02 - Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
B24B 55/00 - Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
H02K 9/06 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
A hair dryer (100), comprising: a motor (110); a fan (120) driven by the motor (110) to rotate about a first axis (101); a power device (121) for supplying power to the motor (110); and a housing assembly (130) for accommodating the motor (110). The housing assembly (130) comprises: an inner air duct (150) formed with an inner air inlet (151); and an outer air duct assembly (130a) surrounding the inner air duct (150). The outer air duct assembly (130a) comprises an outer air duct (140) and an air hood (133), the outer air duct (140) is arranged on the front side of the air hood (133), the end of the outer air duct (140) away from the air hood (133) forms an outer air outlet (132), the air hood (133) is formed with an outer air inlet (131), and the outer air inlet (131) has a front end (131a) and a rear end (131b) along the first axis (101); and along the first axis (101), the inner air inlet (151) is located between the front end (131a) and the rear end (131b).
An electric tool, comprising an output assembly, which is arranged at an end of a first handle and comprises at least two output units arranged at intervals, with the output units being used for connecting to a working accessory. The output assembly can rotate about a switching axis, so as to switch the output units to a working position or a non-working position. A battery pack is arranged at the bottom of a machine body and comprises a standing face. The electric tool can stand by means of the standing face. When the electric tool stands, the projection of the center of gravity of the electric tool towards the standing face is located in the standing face.
B25F 3/00 - Associations of tools for different working operations with one portable power-drive means; Adapters therefor
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 polishing tool (100), comprising: a baseplate assembly (200), comprising a baseplate (210) used for mounting a polishing member; a housing assembly (300) disposed on the baseplate, and comprising a body housing (310); a driving mechanism (400) configured to drive the baseplate assembly to move; and a supporting frame (700), disposed between the body housing and the baseplate. The supporting frame comprises: a supporting base (710) disposed between the body housing and the baseplate; a center release member (730), directly or indirectly fixedly connected to the baseplate; and a floating connection arm (740) connected between the center release member and the supporting base, the floating connection arm allowing the supporting frame to move with respect to the center release member when the supporting frame receives an axial and/or radial action force. According to the polishing tool, the axial stiffness and the radial stiffness of the supporting frame are not reduced on the basis that the height of the supporting frame is reduced, thereby ensuring the shock resistance and the torsion resistance of the whole machine. Moreover, because the height of the whole machine is reduced, the size of the whole machine is reduced, thereby facilitating compaction and miniaturization of the whole machine; the center of gravity of the whole machine is also reduced after the height is reduced, thereby facilitating improving the user operation experience, and making the user operation easier and simpler.
A torque output tool, comprising: an output shaft used for outputting a torque; a motor used for driving the output shaft to rotate around a first axis; a transmission assembly used for transmitting the output of the motor to the output shaft; and a gear box used for accommodating the transmission assembly. The transmission assembly comprises a first planetary gear set and a second planetary gear set; the transmission assembly can be converted to a first state or a second state, so that the transmission assembly respectively outputs a first transmission ratio or a second transmission ratio; the first transmission ratio is greater than the second transmission ratio; when the transmission assembly outputs the first transmission ratio, the rotational speed of the output shaft is greater than or equal to 300 r/min and less than or equal to 800 r/min; and the length of the gear box in the axial direction of the first axis is set to be greater than or equal to 38 mm and less than or equal to 46 mm.
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
F16H 3/44 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
An electric tool, comprising: a body (110); a power assembly (140) provided in the body (110); an output member (120) that is driven by the power assembly (140) to output power; a clamping apparatus (130) connected to the output member (120) and used for clamping a working attachment (400); a battery pack (200) connected to the body (110) and supplying power for the power assembly (140); and a bottom plate assembly (300) connected to the body (110), wherein the bottom plate assembly (300) comprises a bottom plate (310) that is in contact with a workpiece. The battery pack (200) comprises a first supporting unit (210); the bottom plate (310) comprises a second supporting unit (340); the first supporting unit (210) and the second supporting unit (340) are located on the same supporting plane (700); the first supporting unit (210) and the second supporting unit (340) together support the tool, so that the tool stands; and when the tool stands, the working attachment (400) faces the supporting plane (700).
B23D 49/16 - Hand-held or hand-operated sawing devices with straight saw blades actuated by electric or magnetic power or prime movers
B23D 51/01 - Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends characterised by the handle
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 grass mowing robot (100), comprising a grass mowing element (11), a machine body (12), a driving assembly (15), a travel wheel (131), a motor (14), a first detection module (161), a second detection module (162), a fault determination module (17), an execution module (19) and a control module (182). The first detection module (161) detects a first travel distance of the grass mowing robot (100) within a cycle; the second detection module (162) detects a movement parameter of the driving assembly (15) within the cycle and calculates a second travel distance of the grass mowing robot (100) within the cycle; the fault determination module (17) determines whether the difference between the second travel distance and the first travel distance is greater than or equal to a first preset value; the execution module (19) drives the grass mowing robot (100) to execute a response program; and the control module (182) is respectively connected to the fault determination module (17) and the execution module (19), wherein when the difference between the second travel distance and the first travel distance is greater than or equal to the first preset value within each cycle of n1 consecutive cycles, the control module (182) controls the execution module (19) to execute the response program.
Disclosed in the present application are an electric motor and an electric tool, belonging to the technical field of electric tools. The electric motor comprises: a stator assembly, comprising a stator core, and a winding wound around the stator core, the winding comprising an access end and an output end; a rotor assembly, comprising a rotor shaft extending in a first linear direction; and a terminal assembly, used for connecting or fixing the access end and the output end. The stator core comprises a first type of punching sheets, the first type of punching sheets being provided with connecting arms and special-shaped parts, the special-shaped part being arranged, when the first type of punching sheets are overlapped in a direction parallel to the first straight line, to form an access groove used for connecting the terminal assembly, and the access groove being provided on the outer side wall of the stator core. The electric motor achieves the fixation of an electric motor casing in the circumferential direction of the rotor shaft to avoid relative movement between the stator assembly and the electric motor casing in the direction of the rotor shaft during a working process, thereby improving the working stability of the electric motor.
H02K 9/06 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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