Abstract: A single phase brushless motor and a power tool are provided. The single phase brushless motor includes a stator and a rotor. The stator includes a stator core and windings wound around the stator core. The stator core includes a yoke and at least two teeth. The tooth includes a tooth body and a tooth tip. The tooth tip includes first and second pole shoes. The two pole shoes of each tooth are symmetrical about a center line of the tooth body. Each tooth defines a positioning groove facing the rotor between the two pole shoes. Pole shoes of adjacent two of the at least two teeth are spaced apart by a slot opening. A width of the positioning groove is greater than a width of the slot opening. The peak value of the cogging torque of the motor is increased, and the motor has a large startup torque.

Abstract: An electric motor includes a stator and a rotor. The stator includes a stator core, a stator winding, a first insulating frame, a number of first insulating elements, and a number of second insulating elements. The stator core includes a number of teeth. Adjacent teeth form a winding passage defining a winding opening. Each first insulating element is assembled within the corresponding winding passage. Two end portions of each second insulating element are placed over the corresponding winding opening.

Abstract: A single phase brushless motor includes a stator and a rotor. The stator includes a stator core and stator windings wound on the stator core. The stator core includes a yoke portion, and first and second pole portions extending inwardly from the yoke portion. An end surface of the first pole portion includes a first arc surface having a first groove. An end surface of the second pole portion includes a second arc surface having a second groove. The first and second arc surfaces are opposed to each other and define a receiving space therebetween. The rotor includes a rotary shaft and permanent magnetic poles fixed to the rotary shaft. The permanent magnetic poles are received in the receiving space. A substantially uniform gap is formed between the first arc surface and the second arc surface and the permanent magnetic poles.

Abstract: A charging station can be autonomously coupled to an electric vehicle. Sensors on the vehicle determine a location of the vehicle, and the vehicle is positioned within a connection envelope. A travel path for bringing a charging connector into contact with a charging port on the vehicle can be determined, and then the travel path is autonomously carried out.

Abstract: A single phase motor includes an excitation part and an armature part. The excitation part includes N magnets that result in 2N magnetic poles being formed on the excitation part, and the armature part includes 2N tooth portions forming 2N pole portions, where N is an integer greater than one. The present invention further provides a rotor for the single phase motor. The present invention allows each magnet to be fully used, reduces the number of the magnets used in the single phase phase and the workload during motor assembly, as well as reduces the motor fabriction cost.

Abstract: A driving device configured to drive a rotary body includes a motor assembly and a plurality of first magnets disposed on the rotary body along a circumferential direction thereof. Sides of the magnets facing the motor assembly form a plurality of magnetic poles. Upon rotation of the motor assembly, the magnets is driven by magnetic interaction between the motor assembly and the magnetic member to rotate to drive the rotary body to rotate. The present invention also provides a bladeless fan including this driving device.

Abstract: A charging system may include a plug adapter for receiving a charging current and a processor configured to receive data from the plug adapter. The plug adapter may include a thermal sensor configured to measure temperature associated with the plug adapter. The processor may be configured to decrease the charging current if the temperature measured by the thermal sensor exceeds a first threshold temperature. The processor may be further configured to turn off the charging current if the temperature measured by the thermal sensor exceeds a second threshold temperature.

Abstract: A drive apparatus for an electric bike includes a hollow housing body, an internal ring gear fixed to the housing body, and a main shaft. At least two motor units are mounted in the housing body. Each motor unit includes a support bracket and a number of motors mounted on the support bracket. Each motor drives the internal gear through a transmission mechanism to rotate the housing body about the main shaft. The motors share one controller. Peaks of the motor cogging torque can be staggered.

Abstract: An endcap assembly for an electric motor and a stator having same are provided. The endcap assembly includes an endcap, a first wire, and two terminals corresponding to the first wire. The two terminals are fixed to the endcap and configured to connect with corresponding windings of the electric motor. The endcap defines a first accommodating groove extending from one terminal to the other terminal. The first wire is received in the first accommodating groove, and two ends of the first wire are electrically connected to the two terminals, respectively.

Abstract: A charging station can be autonomously coupled to an electric vehicle. Sensors on the vehicle determine a location of the vehicle, and the vehicle is positioned within a connection envelope. A travel path for bringing a charging connector into contact with a charging port on the vehicle can be determined, and then the travel path is autonomously carried out.

Abstract: A charging station can be autonomously coupled to an electric vehicle. Sensors on the vehicle determine a location of the vehicle, and the vehicle is positioned within a connection envelope. A travel path for bringing a charging connector into contact with a charging port on the vehicle can be determined, and then the travel path is autonomously carried out. A charging station may include a mount, a bracket, and a charging connection.

Abstract: A charging station can be autonomously coupled to an electric vehicle. Sensors on the vehicle determine a location of the vehicle, and the vehicle is positioned within a connection envelope. A travel path for bringing a charging connector into contact with a charging port on the vehicle can be determined, and then the travel path is autonomously carried out.

Abstract: A single phase motor includes a stator and a rotor. The stator includes a stator core. The stator core includes an outer yoke and a plurality of stator teeth. Each stator tooth includes a winding portion and a pole shoe coupled to the winding portion. The rotor includes a rotor core and a plurality of permanent magnets. The permanent magnets are evenly spaced and embedded in the rotor core. An outer circumferential wall of the rotor core is an irregular cylinder and includes a plurality of spaced circular arc surfaces and transition surfaces. The starting of the single phase motor is stable and reliable. The present invention also provides a rotor for the single phase motor.

Abstract: A single phase motor includes a stator and a rotor. The stator includes a stator core. The stator core includes an outer yoke and a plurality of stator teeth. Each stator tooth includes a winding portion and a pole shoe coupled to the winding portion. The rotor includes a rotor core and a plurality of permanent magnets. The permanent magnets are embedded in the rotor core and evenly distributed in the circumferential direction of the rotor core. Each permanent magnet has a stripe-shaped asymmetric structure, and cross-sectional areas at both ends of each permanent magnet are not equal. The initial position of the rotor is able to avoid the dead point position, and the start-up of the motor is stable. The present invention also provides a rotor for the single phase motor.

Abstract: A motor stator and a method for forming the motor stator are provided. The method includes the steps of: providing a plurality of plates or metal powder, forming the plate or the metal powder into a plurality of magnetic laminations, wherein each magnetic lamination comprises a yoke portion and a plurality of stator teeth, each of the stator teeth comprises a tooth portion and two pole shoes, and one end of one of the pole shoes extends towards the direction away from the yoke portion to form a bent portion; axially overlapping the plurality of magnetic laminations and fixing the magnetic laminations to form a stator core; winding wires to the stator core; and bending the bent portions towards adjacent stator teeth, to form a smooth transition connection between the bent portions and the pole shoes connected thereto. The method makes the winding convenient and fast.

Abstract: A motor including a motor outer magnetic core and a motor inner magnetic core. The motor outer magnetic core includes an annular yoke and a plurality of teeth. Each tooth includes a tooth body and a pole shoe. The pole shoes of the plurality of teeth cooperatively define a discontinuous inner ring. The motor inner magnetic core is surrounded by the inner ring. The motor inner magnetic core includes a central portion and a plurality of pole portions surrounding an outer side of the central portion. Each of the pole portions and the central portion define a gap therebetween for receiving a permanent magnet. First connecting portions are connected between adjacent ones of the pole portions. Second connecting portions are connected between the first connecting portions and the central portion.

Abstract: A single phase permanent magnet motor includes a stator and a rotor. The stator includes a stator corer and windings. The stator corer includes a yoke portion and stator teeth. Each stator tooth includes a winding portion and a pole shoe connected to an end of the winding portion. Each pole shoe includes a pole face. The pole face defines a first positioning notch at a middle thereof. Each of the pole faces further defines at least one second positioning notch. Said at least one second positioning notches in one of pole shoe are located at the same side of the first positioning notch of the corresponding one pole shoe. The first and second positioning notches are configured such that an initial position of the rotor received in the space of the stator is offset from a dead point position.

Abstract: An air flow regulating device includes a housing, an air supply unit and a circuit board which are arranged inside the housing. The air supply unit includes an impeller and a single-phase permanent magnet brushless motor configured to drive the impeller. The single-phase permanent magnet brushless motor includes a stator and a rotor which can rotate relative to the stator. The stator includes a stator core and a single-phase winding wound around the stator core. The rotor includes a shaft and a permanent magnet fixed to the shaft. Numbers of magnetic poles of the stator and the rotor are the same and not greater than six. An outer diameter of the stator core is less than 35 mm and/or an axial thickness of the stator core is between 10 mm and 20 mm.

Abstract: A motor assembly includes a single phase motor and a friction clutch. The single phase motor includes a stator and a rotor. The friction clutch includes a pressing member rotating with the rotor, and a connecting member to be connected to a load. wherein when the pressing member rotates, the pressing member generates an axial or radial movement to thereby exert a pressing force to the connecting member to cause the connecting member to rotate due to a frictional force generated between the pressing member and the connecting member. The present invention further provides a fluid driving device incorporating the motor assembly.