Abstract: A plastic-packaged stator includes a sleeve base, a plurality of tooth assemblies, and a plastic-packaged body. Each tooth assembly includes an iron core including a plurality of laminated silicon steel sheets, a terminal insulator, and coil windings. The terminal insulator is disposed on one end of the iron core. The coil windings are coiled on the terminal insulator. A plurality of lug bosses is circumferentially disposed at intervals on the outer wall surface of the sleeve base. An inner end of the iron core includes slots. The tooth assemblies are circumferentially disposed on the outer wall surface of the sleeve base. The lug bosses are embedded in the slots. The plastic-packaged body integrates the sleeve base with the tooth assemblies.

Abstract: An external rotor motor, including: a front end cover; a rear end cover; a sleeve casing; a rotary shaft; a stator assembly; and an external rotor assembly. The front end cover includes a first bearing chamber in which a front bearing is disposed. The front end cover and the rear end cover are disposed at two ends of the sleeve casing, respectively. The external rotor assembly is disposed on and integrated with the rotary shaft. The rear end cover includes a cover body and a sleeve base. The sleeve base includes a second bearing chamber in which a rear bearing is disposed. The external rotor assembly is disposed in the sleeve casing and sleeves the stator assembly. The rotary shaft includes a head, a middle part, and a tail. The tail of the rotary shaft is supported by the rear bearing on the rear end cover.

Abstract: A motor controller, including: a Bluetooth communication unit and a motor control unit. The Bluetooth communication unit includes: a power supply part, a Bluetooth module, and an interface circuit. The motor control unit includes an input port of a rotational speed adjusting signal. The power supply part supplies power to the Bluetooth module and the interface circuit. The Bluetooth module enables the motor control unit to communicate with an external device. The Bluetooth module inputs a PWM signal into the input port of the rotational speed adjusting signal of the motor control unit via the interface circuit.

Abstract: An external rotor motor, including: a front end cover; a rear end cover; a sleeve casing; a rotary shaft; a stator assembly; and an external rotor assembly. The front end cover includes a first bearing chamber in which a front bearing is disposed. The front end cover and the rear end cover are disposed at two ends of the sleeve casing, respectively. The external rotor assembly is disposed on and integrated with the rotary shaft. The rear end cover includes a cover body and a sleeve base. The sleeve base includes a second bearing chamber in which a rear bearing is disposed. The external rotor assembly is disposed in the sleeve casing and sleeves the stator assembly. The rotary shaft includes a head, a middle part, and a tail. The tail of the rotary shaft is supported by the rear bearing on the rear end cover.

Abstract: A motor controller, including: a Bluetooth communication unit and a motor control unit. The Bluetooth communication unit includes: a power supply part, a Bluetooth module, and an interface circuit. The motor control unit includes an input port of a rotational speed adjusting signal. The power supply part supplies power to the Bluetooth module and the interface circuit. The Bluetooth module enables the motor control unit to communicate with an external device. The Bluetooth module inputs a PWM signal into the input port of the rotational speed adjusting signal of the motor control unit via the interface circuit.

Abstract: A plastic-packaged stator includes a sleeve base, a plurality of tooth assemblies, and a plastic-packaged body. Each tooth assembly includes an iron core including a plurality of laminated silicon steel sheets, a terminal insulator, and coil windings. The terminal insulator is disposed on one end of the iron core. The coil windings are coiled on the terminal insulator. A plurality of lug bosses is circumferentially disposed at intervals on the outer wall surface of the sleeve base. An inner end of the iron core includes slots. The tooth assemblies are circumferentially disposed on the outer wall surface of the sleeve base. The lug bosses are embedded in the slots. The plastic-packaged body integrates the sleeve base with the tooth assemblies.