Abstract: A power tool includes a body with a main casing and a handle connected to the main casing. The main casing has a head and a tail arranged along a second direction in sequence and located along an axis. A side of the tail facing the second direction has an end wall and a mounting wall closer to a handle than the end wall. A straight line that passes through the most protruding part of the handle and a surface of the end wall and intersects the axis is defined as a collision boundary line. The mounting wall is located on a side of the collision boundary line facing a first direction. The first direction is opposite to the second direction. A setting module is disposed in the tail. A panel of the setting module is exposed outward on the mounting wall.

Abstract: A scheduling method for charging multiple electric vehicles includes: get a sorted list of an operation period; get an estimated charging power consumption required for charging each electric vehicle when each electric vehicle is connected to one of the charging machines and get an instant power consumption of an electricity consuming field; control one or more of the charging machines to correspondingly charge one or more of the plurality of electric vehicles with higher priority in a departure order based on the departure order information in the sorted list when a sum of the instant power consumption and the estimated charging power consumptions is greater than a regulated power consumption that is smaller than an upper limit power consumption of the electricity consuming field, thereby preventing the instant power consumption of the electricity consuming field from exceeding the upper limit power consumption.

Abstract: A programming method for a tire pressure detector includes the following steps: a first microcontroller reads first version information of a first program code from a first memory; the first microcontroller transmits the first version information to the programmer; when the first version information is older than the first predetermined version information, the programmer, either actively or under user control, transmits the first predetermined program code to the first microcontroller, and the first predetermined program code is programmed into the first memory, thereby updating the program code of the tire pressure detector.

Abstract: A configuration method for a plurality of serial codes of a battery management system, wherein the battery management system includes a master battery management device and a plurality of slave battery management devices. The configuration method comprises steps of: sending, by each slave battery management device, a notification message through a first communication interface, wherein each notification message includes an identification code of each slave battery management device; receiving, by the master battery management device, each notification message and acquiring each identification code from each notification message received; counting, by the master battery management device, a number of the identification codes and performing a configuration step when the number of the identification codes is determined to be equal to a predetermined number of connections. In the configuration step, the first to the last of the slave battery management devices are configured sequentially with a serial code.

Abstract: A power tool includes a body with a main casing and a handle connected to the main casing. The main casing has a head and a tail arranged along a second direction in sequence and located along an axis. A side of the tail facing the second direction has an end wall and a mounting wall closer to a handle than the end wall. A straight line that passes through the most protruding part of the handle and a surface of the end wall and intersects the axis is defined as a collision boundary line. The mounting wall is located on a side of the collision boundary line facing a first direction. The first direction is opposite to the second direction. A setting module is disposed in the tail. A panel of the setting module is exposed outward on the mounting wall.

Abstract: An extended ratchet wrench includes a body, a tool head, and a fixing ring. The body has a head. The head has a first positioning surface, a first positioning structure, and an outer threaded portion that are concentric. The tool head has a rod body. The rod body has an engaging base and a support portion of a free end of the rod body is provided with a driven head assembly. The engaging base has a second positioning structure and a second positioning surface in contact with the first positioning surface. The first positioning structure matches with the second positioning structure in a convex-concave manner at any one of a plurality of angles with the axis as a rotation center. An inner side of the fixing ring has an inner threaded portion screwed with an outer threaded portion and a hooking surface hooking the engaging base in a second direction.

Abstract: A programming system includes a mobile device and a programmer, in which the programmer includes a wireless communication module, a control module, and a communication module. A programming method of the programming system includes: storing a program code in the mobile device; establishing wireless communication between the control module and the mobile device via the wireless communication module to obtain the program code of the mobile device; and, sending the program code from the control module to a tire pressure detector via the communication module to program the program code whereby it is convenient for the user to operate and the manufacturing cost of the programmer can be reduced.

Abstract: An electric tool includes a body and a display device. The body has a main body portion and an operating portion. The body has a head portion and a rear portion that are located on a straight axis which is virtual. The operating portion has a connecting portion and a holding portion. Two ends of the connecting portion are respectively connected to the rear portion and the holding portion. The holding portion is located on the straight axis. A distance is provided between the holding portion and the rear portion. The rear portion has a mounting wall facing the holding portion. The display device is disposed on the rear portion and has a display portion exposed outside the mounting wall to show an operational status of the electric tool. Therefore, the holding portion could shield the display portion, reducing the likelihood of damage to the display portion due to collisions.

Abstract: A control device of a power tool includes a trigger mounting bracket, a control circuit board, a control trigger, and a direction-switching button. The control circuit board is disposed on the trigger mounting bracket and has a 3D Hall sensor. The control trigger has a first magnet and is disposed on the trigger mounting bracket to approach or move away from the 3D Hall sensor along a first axis. The direction-switching button has a second magnet and is disposed on the trigger mounting bracket to approach or move away from the 3D Hall sensor along a second axis. By detecting a variation of a magnetic field generated by different magnets in the first axis and the second axis when approaching or moving away from the 3D Hall sensor through the 3D Hall sensor, the power tool could be controlled to activate and switch directions.

Abstract: A motor assembly includes a motor in a housing. The motor includes a stator and a rotor mounted in the stator casing, and an output shaft engaged with the rotor passes through the stator casing. Two opposite ends of the stator casing and the stator abuts against an annular plate and a rear end cap, respectively. Each screw passes through the rear end cap and the stator to screw into the annular plate, so the stator is fixed and restricted from moving axially in the stator casing. A front end of the housing is engaged with a motor fixing frame. The output shaft passes through a bearing on the motor fixing frame. The motor fixing frame is spaced from the motor. With such design, a vibration of the output shaft during operation is transmitted to the housing, but not directly affect the screws in the motor, thereby increasing the durability of the motor assembly.

Abstract: An electric tool includes a motor, a drive shaft, a torque sensing module, and a control device. A control method of the electric tool includes: driving the motor to rotate a rotating shaft in a direction of rotation through the control device; driving the motor in a plurality of first start-stop cycles through the control device when the control device determines that an increase in the torque sensed by the torque sensing module; driving the motor in a plurality of second start-stop cycles through the control device when the control device determines that the torque sensed by the torque sensing module has increased to a first predetermined torque and is less than a second predetermined torque. Therefore, in the process of tightening or loosening a workpiece, the discomfort felt by the hands of the user due to reaction forces during increasing the torque could be effectively reduced.

Abstract: A coaxial mid-drive power device of a bicycle includes a reducing structure and a hollow shaft motor engaged with the reducing structure that are disposed in a motor base. An output end of the reducing structure is operatively coupled with a one-way bearing bracket with a sprocket base via a one-way bearing. A crank spindle engaged with the one-way bearing bracket through another one-way bearing penetrates through the motor base. The two one-way bearings respectively have opposite rotation directions and are respectively located on different sides, i.e., an inside and an outside, of the one-way bearing bracket. A strain gauge disposed on the crank spindle is electrically connected to an annular conductive rail assembly engaged with the crank spindle and an elastic sheet assembly on a control circuit board in the motor base, hence the strain gauge could directly obtain a change in a torque of the crank spindle.

Abstract: A coaxial mid-drive power device of a bicycle includes a reducing structure and a hollow shaft motor engaged with the reducing structure that are disposed in a motor base. An output end of the reducing structure is operatively coupled with a one-way bearing bracket with a sprocket base via a one-way bearing. A crank spindle engaged with the one-way bearing bracket through another one-way bearing penetrates through the motor base. The two one-way bearings respectively have opposite rotation directions and are respectively located on different sides, i.e., an inside and an outside, of the one-way bearing bracket. A strain gauge disposed on the crank spindle is electrically connected to an annular conductive rail assembly engaged with the crank spindle and an elastic sheet assembly on a control circuit board in the motor base, hence the strain gauge could directly obtain a change in a torque of the crank spindle.

Abstract: A control device of a power tool includes a trigger mounting bracket, a control circuit board, a control trigger, and a direction-switching button. The control circuit board is disposed on the trigger mounting bracket and has a 3D Hall sensor. The control trigger has a first magnet and is disposed on the trigger mounting bracket to approach or move away from the 3D Hall sensor along a first axis. The direction-switching button has a second magnet and is disposed on the trigger mounting bracket to approach or move away from the 3D Hall sensor along a second axis. By detecting a variation of a magnetic field generated by different magnets in the first axis and the second axis when approaching or moving away from the 3D Hall sensor through the 3D Hall sensor, the power tool could be controlled to activate and switch directions.

Abstract: A scheduling method for charging multiple electric vehicles includes: get a sorted list of an operation period; get an estimated charging power consumption required for charging each electric vehicle when each electric vehicle is connected to one of the charging machines and get an instant power consumption of an electricity consuming field; control one or more of the charging machines to correspondingly charge one or more of the plurality of electric vehicles with higher priority in a departure order based on the departure order information in the sorted list when a sum of the instant power consumption and the estimated charging power consumptions is greater than a regulated power consumption that is smaller than an upper limit power consumption of the electricity consuming field, thereby preventing the instant power consumption of the electricity consuming field from exceeding the upper limit power consumption.

Abstract: A wireless signal emitter of a tire pressure detector includes a controller, an antenna, and an impedance matching module. The impedance matching module includes an impedance matching circuit and an impedance adjusting circuit. The impedance matching circuit is electrically connected to the controller. The impedance adjusting circuit is electrically connected to the antenna and the impedance matching circuit. The impedance adjusting circuit includes a switching element electrically connected to the controller. When the switching element receives different signals of the controller, the impedance adjusting circuit switches between two different configurations, so that the impedance matching module has two different impedances, thereby the antenna sends two different radio frequency signals to achieve a purpose of a single tire pressure detector suitable for in-car receivers of different frequencies.

Abstract: A method of charging management of an electric vehicle includes: get an initial power of the electric vehicle; calculate an actual power consumption of the electric vehicle in an operation period; get a remaining power by subtracting the actual power consumption from the initial power; get a predicted power consumption of the electric vehicle in a next operation period; control a charging machine to charge the electric vehicle after the electric vehicle being connected to the charging machine until a power of the electric vehicle reaches the predicted power consumption from the remaining power, thereby avoiding wasting power due to overcharging.

Abstract: A brushless motor assembly includes a motor body, a circuit board, and a plurality of electronic elements. The circuit board is disposed on the motor body and has a first surface and a second surface which face opposite directions. The first surface faces the motor body. The second surface has a plurality of thermoconductive layouts. The electronic elements include a plurality of power switching elements disposed on the second surface. A plurality of heat sinks is disposed on the second surface. Each of the power switching elements and each of the heat sinks are connected to each of the thermoconductive layouts, so that a thermal energy generated by each of the power switching elements is transferred to each of the heat sinks through each of the thermoconductive layouts. This configuration thereby reduces an overall volume of the brushless motor assembly.

Abstract: A programming system includes a mobile device and a programmer, in which the programmer includes a wireless communication module, a control module, and a communication module. A programming method of the programming system includes: storing a program code in the mobile device; establishing wireless communication between the control module and the mobile device via the wireless communication module to obtain the program code of the mobile device; and, sending the program code from the control module to a tire pressure detector via the communication module to program the program code whereby it is convenient for the user to operate and the manufacturing cost of the programmer can be reduced.