An air pulse device according to the invention is used, in particular, in a heating, ventilation and/or air conditioning system of a motor vehicle. The air pulse device comprises an electric motor (2) having a rotor (16) and a stator (14). The stator is mounted about a support means (10) such that it is in contact with said support means, the latter being made of an electrically conductive material and connected to an electrical ground. Moreover, a shield (70) is disposed in the vicinity of the stator, said shield also being electrically connected to the electrical ground.

Disclosed are various embodiments for a new and improved electric motor/generator including a toroidal magnetic cylinder centered on the longitudinal axis, and a coil assembly including a first coil assembly support positioned within the toroidal magnetic cylinder, and a second coil assembly support positioned within the toroidal magnetic cylinder.

A stator (10) according to the present invention comprises: a yoke part (11) composed of a plurality of block bodies having an arc shape with a rectangular cross section; fixing members (12, 13) for disposing and fixing the plurality of block bodies in an annular shape; a plurality of teeth parts (14) erected on the peripheral surface of the yoke part; and a coil (15) wound around the plurality of teeth parts (14).

Various embodiments are described herein for switched reluctance machine configurations. In at least one embodiment, a switched reluctance machine configured according to the teachings herein comprises an axially extending shaft, an axially extending rotor mounted to the shaft, the rotor having a plurality of salient rotor poles, an axially extending stator disposed coaxially and concentrically with the rotor, the stator having a plurality of salient stator poles protruding radially from the stator towards the rotor poles, a plurality of stator teeth and tooth-tips, and a plurality of electrical coils wound about the stator poles to define a plurality of phases of the switched reluctance machine, where a number of stator poles can be determined according to the following equation and at least one constraint condition: $N_s=\frac{N_t\mathrm{LCM}\left(N_s,N_r\right)}{N_r{N}_{ph}S}.$

Provided is an actuator that has a simple configuration and can stably achieve high output. This actuator has: a movable body provided with a cylindrical magnet section alternately having N-pole faces and S-pole faces on a peripheral surface thereof along the circumferential direction; a fixed body provided with pole tooth surfaces disposed facing the peripheral surface a magnet section and a coil that excites the pole tooth sections; and a spring material holds the movable body to the fixed body in a freely movable manner. The spring material is fixed to at least one of the movable body and the fixed body via a joint section. The joint section has a fixing part for fixing and end section of the spring material, and a stress relaxation part that is disposed in proximity to the fixing part and relaxes stress generated during deformation of the spring material.

Disclosed is a home appliance including a claw pole type motor, the claw pole type motor include a first core including a first core main body disposed on a rotary shaft, a first elongation portion disposed in the center portion of the first core main body and extending in the axial line direction of the rotary shaft, and a plurality of first claw poles disposed in the edge portion of the first core main body and extending in the axial line direction of the rotary shaft and a second core including a second core main body disposed on the rotary shaft, and a plurality of second claw poles disposed in the edge portion of the second core main body and extending in the axial line direction of the rotary shaft and a third core including a third core main body disposed on the rotary shaft, a second elongation portion disposed in the center portion of the third core main body and extending in the axial line direction of the rotary shaft, and a plurality of third claw poles disposed in the edge portion of the third core main body and extending in the axial line direction of the rotary shaft, wherein the second core further comprises a surrounding member disposed in the center portion of the second core main body and surrounding the first elongation portion and the second elongation portion.

The purpose of the present invention is to provide an actuator that has a simple configuration and can stably achieve high output without the occurrence of magnetic saturation. This actuator has: a movable body provided with a cylindrical magnet section having alternately N-pole faces and S-pole faces on the peripheral surface surrounding a rotation shaft; and a fixed body provided with, pole tooth surfaces of the same number as the N-pole faces and the S-pole faces, and a coil that excites the pole tooth sections. The movable body has as a turning reference position a position at which the center of the pole tooth surfaces in the circumferential direction and the switching position of the pole faces of the magnet section face each other, and is held to the fixed body so as to be turnable back and forth around the rotation shaft in the circumferential direction.

A rotor in a rotating electric machine including a rotor main body and at least one magnet unit provided at an outer circumferential part of the rotor main body. The magnet unit has a plurality of magnet teeth as segments in the circumferential direction. The plurality of magnet teeth that form one magnet unit are arranged in a circular arc shape. At least one pair of magnet teeth in one magnet unit is each provided with a notch. With the plurality of magnet teeth being arranged in the circular arc shape, a fixation block is press-fitted in the pair of notches. The fixation block is fastened to the rotor main body while being inserted in the notches.

This present utility model provides a novel DC dynamo which is characterized by making the magnetic lines of flux pass through an air gap between the rotator and the stator in the same direction, thus the most of armature coils can always receive the electromotive force of the same polarity in the same direction. Therefore, bidirectional energy conversion between the mechanical energy and the electrical energy of the armature coils in series can still proceed in the absence of commutators and induced the armature to generate sufficient electromotive force to conveniently regulate suitable terminal voltages and the ratios of the rotating speed and the moving speed thereof.

A motor includes a bearing housing and a stator. The stator includes a stator core, an insulator, and a conductor. The insulator is an insulating body covering at least a part of the stator core. The conductor is wound around the stator core via the insulator. The bearing housing includes a first inner peripheral surface and a first outer peripheral surface. The first inner peripheral surface holds a bearing. The first outer peripheral surface is in contact with the insulator directly or via an adhesive. A surface roughness of the first outer peripheral surface is greater than a surface roughness of the first inner peripheral surface. Therefore, a friction coefficient between the first outer peripheral surface and the insulator increases. Therefore, it is possible to suppress position deviation of the stator with respect to the bearing housing.