Abstract: A stator includes a stator core including stator poles and a yoke connecting the stator poles, at least one winding wound around the stator core and connecting terminals configured to connect with an external power source to supply power to the winding and located at one end of the yoke adjacent the stator poles. A single phase motor and a ventilation fan are also provided.

Abstract: A synchronous motor assembly includes a motor connected between two nodes of an AC power source, a motor drive circuit, and a regulation unit. The drive circuit drives the motor to rotate. The regulation unit regulates a rotation speed of the motor via regulating the motor to different steady voltage points.

Abstract: A stator includes a stator core including stator poles and a yoke connecting the stator poles, at least one winding wound around the stator core and connecting terminals configured to connect with an external power source to supply power to the winding and located at one end of the yoke adjacent the stator poles. A single phase motor and a ventilation fan are also provided.

Abstract: An electric motor includes a stator and a rotor rotatably mounted to the stator. The rotor includes a rotary shaft, a rotor main body attached around the rotary shaft, the rotor main body being rotatable under the interaction between the rotor main body and the stator when the winding is energized. The rotor main body and the rotary shaft are in a loose fitting with each other to allow a rotation speed difference being existed between the rotor main body and the rotary shaft during startup of the rotor. A time-delayed synchronization mechanism is connected between the rotary shaft and the rotor main body and configured to eliminate, with time delay, the rotation speed difference between the rotor main body and the rotary shaft.

Abstract: An electric motor includes a stator and a rotor rotatably mounted to the stator. The rotor includes a rotary shaft; a rotor main body attached around the rotary shaft, the rotor main body and the rotary shaft being loosely fit with each other thus allowing for a rotation speed difference therebetween; and a buffering device arranged between the rotor main body and the rotary shaft for synchronizing rotation speeds of the rotor main body and the rotary shaft in a time-delayed manner. The motor is preferably a single phase synchronous motor. An electrical apparatus using the motor is also provided.

Abstract: A single phase motor and an electrical device are provided. The single phase motor includes a stator and a rotor. The stator includes a stator core and a winding wound around the stator core. The stator core includes a yoke and two opposed pole portions. Each pole portion includes short and long pole shoes. The rotor is received in a space defined by the short and long pole shoes of the two pole portions. The short pole shoe of each pole portion and the long pole shoe of the opposite pole portion are located adjacent to each other and define a slot opening therebetween. Each pole portion includes the short pole shoe and long pole shoe, which provides the motor with different startup capabilities along the clockwise and counter-clockwise directions.

Abstract: A power tool includes a main body and a working portion. The working portion is rotatably coupled to the main body. A single phase brushless motor is mounted in the main body to drive the working portion to rotate bidirectionally. In comparison with a traditional motor, the single phase brushless motor make the power tool has a reduced size and reduced cost while ensuring the stable performance.

Abstract: A single phase brushless motor and a power tool and a car window lifer employing the motor are provided. The motor includes a stator and a rotor. The stator includes a stator core and windings. The stator core includes a yoke and teeth extending inward from the yoke. The tooth includes a tooth tip. The tooth tip includes a first pole shoe and a second pole shoe. The tooth tip forms a positioning groove facing the rotor between the first and second pole shoes. The rotor is received in a space defined between the first and second pole shoes. The rotor comprises multiple permanent magnetic poles arranged in a circumferential direction of the rotor. The first and second pole shoes are symmetrical about a central line of the tooth body, such that the rotor startup capability in one direction is greater than the rotor startup capability in an opposite direction.