A thin cooling fan includes a fan shell, a motor, a plurality of blades, and a PCB. The fan shell comprises a base plate and a shell cover which cover to each other to form an inner space. The base plate has a first surface facing toward the inner space and a second surface having a receiving space and opposite to the first surface. The motor is combined in the inner space. The blades are disposed in the inner space and rotated by the motor. The PCB is disposed in the receiving space and flush with the second surface. Thus, the whole thickness of the cooling fan is reduced and the flow channel design in the inner space is not affected.

Heat radiation base body 23 that is adjacent to electric motor unit EM and extends in direction of rotation shaft 50 of electric motor is provided close to rotation shaft 50 of electric motor. Board 24 of one electronic control unit of redundant system is fixed to heat radiation base body along direction in which heat radiation base body 23 extends with thermal conduction to heat radiation base body 23 allowed. Board 26 of the other electronic control unit of redundant system is fixed to heat radiation base body so as to face to board 24 of one electronic control unit of redundant system, with thermal conduction to heat radiation base body 23 allowed. Size reduction of electric drive device in radial direction can be achieved. Since heat radiates to housing of electric motor unit through heat radiation base body, heat from board can radiate efficiently to the outside.

A system and method for integrated charging a vehicle includes a hybrid excitation machine, operable as a traction motor and including a rotor separated by an air gap from a stator with AC windings. An AC utility line power supply is connected to the AC windings providing an electrical current to the vehicle and inducing a magnetic flux across the air gap and in the rotor. A short circuit, an open circuit, or a DC voltage may be applied to a DC winding in the stator to reduce the magnetic flux into the rotor. A field coil in the rotor may be excited with a DC voltage using a secondary coil on the rotor in a traction mode. The secondary coil is excited by the stator windings using field-oriented control in a “self-excited machine” embodiment, and is directly excited by a separate primary coil in an “externally-excited machine” embodiment.

A scarecrow includes a scarecrow body corresponding generally in shape to a body of a live animal and an assembled hollow scarecrow head of molded plastic construction corresponding in shape to a head of the live animal. The assembled head includes a front face portion and a separate rear head portion fixed together to form the head, the front face portion having a front receiver and the rear head portion having a rear receiver. The scarecrow includes a motor having a rotatable motor shaft; a mounting insert fixed to the motor with the motor shaft extending below the mounting insert, the mounting insert received by the front receiver and the rear receiver to fix the mounting insert to the head; and a mounting bracket fixed to the scarecrow body and having a motor shaft receiver into which the rotatable motor shaft is received. Rotation of the motor shaft rotates the assembled scarecrow head relative to the scarecrow body.

A bearing assembly of an electric drive assembly for a vehicle includes an insulating device having a sleeve with an electrically insulating coating, and a bearing device disposed in the sleeve. In an example embodiment, the sleeve has an inner peripheral surface and an outer peripheral surface, and the outer peripheral surface is formed by the electrically insulating coating. In an example embodiment, the sleeve is formed from steel, and the electrically insulating coating is formed from a plastic material having an electrically insulating property. In an example embodiment, the sleeve is designed as a cylinder having an end face with an outer side, and the electrically insulating coating is disposed on the outer side. In an example embodiment, the bearing device is a floating bearing axially movable relative to the sleeve.

The present disclosure includes: a magnetic member configured to cause a large Barkhausen effect; a power generation coil disposed so as to be wound around the magnetic member; and soft magnetic members formed at both end portions of the magnetic member so as to be in contact with the magnetic member and so as to press the magnetic member. Consequently, evenness of a magnetic flux density inside the magnetic member is increased, and the large Barkhausen effect is stably caused, whereby a highly stable power generation element is obtained.

A drive unit, in particular for a vehicle flap drive, includes a housing (3), a motor (2) arranged in the housing, a control device (11) configured for control of the motor (2), comprising a first printed circuit board (12) having a top side (12a) and a underside (12b), and a second printed circuit board (13) having a top side (13a) and an underside (13b), wherein the first printed circuit board (12) is arranged above the motor (2), and the second printed circuit board (13) is arranged above the first printed circuit board (12). The drive unit further comprises a power unit (19) arranged on the first printed circuit board (12), comprising at least one first filter (20) and a Hall sensor (21) and a control unit (23) arranged on the second printed circuit board (13), the control unit (23) comprising at least one microcontroller (24) and a voltage regulator (26). At least one polarity reverse protection device (29) is arranged on the underside (12b) of the first printed circuit board (12).

A propulsive electric motor set for aircraft includes an electrical energy source and an electric motor provided with a drive shaft on which is mounted a propeller. The electric motor includes a first set of windings linked to the electrical energy source to provide a rotational drive function for the drive shaft. The electric motor further includes a second set of windings which, when the drive shaft is driven in rotation by an electric powering of the first set of windings, provides an electric generation function configured to supply non-propulsive loads of the aircraft. Thus, the non-propulsive loads of the aircraft can be electrically powered without any overload compromising the aerodynamics of the aircraft.

A hub assembly is provided for a human-powered vehicle. The hub assembly is basically provided with a hub axle, a hub body, an electric component and a user input device. The hub body is rotatably mounted on the hub axle to rotate around a rotational center axis of the hub assembly. The user input device is electrically coupled to the electric component.

A motor is provided with a bracket, a terminal provided at the bracket, and a frame. The bracket is fixed to the frame. The terminal is electrically connectable to an outside. The bracket is provided with an outer peripheral surface including an opening portion. A part of the terminal is arranged inside the opening portion.