Abstract: A motor and a rotary assembly of the motor are provided. The motor includes a rotary assembly and a stationary assembly supporting the rotary assembly. The rotary assembly includes a rotary shaft, a retainer rotating along with the rotary shaft, and a rotor magnet retained by the retainer. A portion of the rotor magnet engages with a portion of the retainer via interference fit, and a gap is defined between another portion of the rotor magnet and another portion of the retainer.

Abstract: A cover assembly and a brushed motor are provided. The cover assembly includes a mounting portion and a flow guide portion. The mounting portion defines a first opening through the mounting portion along an axial direction of the motor. The flow guide portion includes a top wall disposed at one end thereof away from the mounting portion along the motor axial direction. The fluid guide portion defines a second opening extending to an inner wall surface of the top wall in the motor axial direction. The first opening and the second opening are in flow communication with each other. The flow guide portion further defines a winding flow passage. The flow passage has an inner inlet in flow communication with the second opening and an outer outlet in flow communication with an outside environment. The present invention facilitates absorption of the motor noise and hence reduction of the output noise.

Abstract: A gear pump has a pump body, a pump cylinder connected with the pump body, a driving gear and a driven gear meshed with each other and disposed in the pump cylinder, and a motor driving the driving gear through a driving shaft. The pump cylinder is located between the pump body and the motor. The driving gear is mounted to or integrally formed with the driving shaft. A first bearing and a second bearing are disposed on respectively sides of the driving gear, one end of driving shaft is received in the first bearing, and the other end of the driving shaft extends through the second bearing and into the motor and forms a shaft of the motor.

Abstract: An electric tool and a motor drive system are provided. The motor drive system includes a trigger switch, an electronic switch, and a switch control circuit connected between the trigger switch and the electronic switch. The trigger switch is connected in series to a power supply. The electronic switch is configured to control a motor to be powered on or powered off. The switch control circuit is configured to control the electronic switch based on a state of the trigger switch, wherein the electronic switch is delayed to be turned off after the trigger switch is turned off to control the motor to be powered off later than a time that the trigger switch is turned off.

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: An electric coolant pump includes an outer housing, a motor, an impeller, and an electrical control unit. The outer housing includes a first housing portion, a second housing portion, and a partition plate integrally formed. The partition plate is disposed between the first housing portion and the second housing portion. The motor is received in the first housing portion. The motor includes a sealing sleeve, a stator disposed on an inner wall surface of the outer housing, and a rotor rotatably received in the sealing sleeve. The impeller is driven by the rotor of the motor to drive a coolant to flow. The electrical control unit is received in the second housing portion and electrically connected to the motor. The electrical control unit and the impeller are respectively located at two opposite ends of the motor.

Abstract: An electric switch for electrical devices that includes a circuit board immovably arranged in a switch housing, the circuit board includes on one of its surfaces the contact paths of a contact system as well as contact surfaces in the form of potentiometer tracks. The contact paths interact with sliding contacts of the contact system and the potentiometer tracks interact with additional sliding contacts in order to set the revolutions per minute or the torque of the electric motor, movement of the plunger causes the sliding contacts of the contact system to come into contact with the associated contact paths, and, in this position of the plunger, which is the on position of the switch, the sliding contacts used for changing the direction of rotation are in the same way already in contact with the associated potentiometer tracks on the circuit board.

Abstract: A flow control valve includes a valve body having an bore and a plurality of fluid ports in communication with the bore. A valve spool is axially slidably disposed in the valve body, and an end portion of an end of the valve spool has a convex curved surface. A linear actuator is disposed at one end of the valve body and includes an armature slidable along an axial direction of the valve spool. The armature includes a head portion having a convex curved surface configured to abut against the end portion of the valve spool. The engagement structure between the valve spool and the armature of the flow control valve is improved, which enables the valve spool and the armature to be automatically aligned. This reduces the precision requirement of contact between the valve spool and armature, which facilitates mass production and reduces cost of the valves.

Abstract: A driving device includes an electric motor including a stator and a rotor rotatable relative to the stator, and a gear train connected to the rotor. The stator includes a cylindrical housing and an endcap mounted to an end of the housing; The gear train includes a gear mechanism with at least one stage, which includes a ring gear, a sun gear, planetary gears and a carrier. The ring gear is directly engaged with the endcap, which limits the position of the planetary gears of the gear train in an axial direction of the gear train.

Abstract: An actuating element for a switch includes a U-shaped actuating section. The actuating section includes two different arms with different lengths. The long arm is configured to transfer force to the push-button of the switch and includes a bracket portion at the free end of the long arm for supporting actuating element. The short arm is configured for the force input and is aligned obliquely to the long arm.

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 for a blower and the like has a commutator and a brush assembly for making electrical contact with the commutator. The brush assembly includes a brush holder and a brush slidably mounted to the brush holder. The brush holder includes a brush holder plate and a side portion extending from the brush holder plate. The brush is arc-shaped and includes a first surface contacting the brush holder plate and a second surface contacting the side portion of the brush holder. The side portion of the brush holder has a number of ribs contacting the second surface of the brush.

Abstract: A stator core includes an end portion, a first pole arm, and a second pole arm. The first pole arm includes two first connecting arms extending from the end portion and spaced from each other, and two first pole claws respectively formed at ends of the first connecting arms. The first pole claws are spaced from each other with an opening formed there between. The second pole arm includes two second connecting arms axially stacked to the two first connecting arms respectively and two second pole claws respectively formed at distal ends of the two second connecting arms. The two second connecting arms are connected with each other.

Abstract: A motor, a pump and a cleaning apparatus are provided. The motor includes a stator and a rotor rotatable relative to the stator. The stator includes a stator core and stator windings wound around the stator core. The stator core includes a pair of opposing poles and a yoke connected between the poles. Each pole has a pole arc surface facing the rotor, with an air gap formed between the pole arc surface and the rotor. The pair of poles includes opposing circumferential end portions spaced apart from each other, and a ratio of a distance between the circumferential end portions to a minimum width of the air gap between the pole arc surface and the rotor is less than 2.

Abstract: A fluid generating device and an electric apparatus utilizing the fluid generating device are provided. The fluid generating device includes a motor and an impeller driven by the motor. The motor is a single phase direct current brushless motor which includes a stator and a rotor. The stator includes a stator core and a stator winding. The stator core includes an outer ring portion, teeth extending inwardly from the outer ring portion, a pole shoe formed at the tooth. Slot openings are formed between the pole shoes. The rotor is received in a receiving chamber defined by the pole shoes. Inner surfaces of the pole shoes and the rotor form therebetween a substantially even air gap. The presence of even air gap can reduce the cogging torque of the motor, thus reducing the startup current and noise of the motor.

Abstract: A motor (10) and a pump having the motor are provided. The motor (10) includes a stator (14) and a rotor (16) rotatable relative to the stator (14). At least one of the stator (14) and the rotor (16) has a magnetic core (20) and a winding (22) wound around the magnetic core (20). The magnetic core is mounted to a base body (18). The base body (18) has at least one recess (54) for receiving debris produced by mutual friction between the magnetic core (20) and the base body (18).

Abstract: A magnetic sensor integrated circuit includes a rectifier circuit, a magnetic field detection circuit, and a timing controller. The rectifier circuit converts an external power into a DC power. The magnetic field detection circuit senses a polarity of an external magnetic field and outputting a magnetic detection signal; and the magnetic field detection circuit includes a first chopping switch, a first amplifier unit and a switched capacitor filter module. The timing controller outputs a first clock signal to the first chopping switch and the first amplifier unit, and a second clock signal delayed for the first clock signal with a first predetermined time to the switched capacitor filter module.

Abstract: A fuse component configured to provide overcurrent protection for an electric motor comprises a spiral fuse portion and a magnetic core. The spiral fuse portion encloses at least a part of the magnetic core, so that the fuse component is also configured to function as a choke of the electric motor.

Abstract: A housing assembly has a housing having an open end. A plurality of magnets are fixed to an inner surface of the housing. A magnet holder supports the magnets against movement in the axial and circumferential directions. A cover is mounted in the magnet holder for fixing the magnets in the radial direction. The cover is resiliently deformed when assembled to the magnet holder and magnets, and abuts and resiliently urges the magnets towards the inner surface of the housing.

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.