A radial flux electrical machine is disclosed. The machine comprises a body of the stator having a body that defines a longitudinal axis a substantially cylindrical inner surface and an inner volume, and having a plurality of electromagnetic elements, each of which includes a stator core and a winding of electrically conductive material located around at least part of the stator core of the electromagnetic element, the electromagnetic elements being arranged around the inner surface of the stator, and operable to induce a magnetic flux field in a radial direction in the inner volume of the stator, and a rotor located within the inner volume of the stator, and rotatable with respect to the stator.

A dustproof bearing assembly includes a base having a shaft tube. The shaft tube has an open end with an opening. At least one bearing is coupled to an inner periphery of the shaft tube. A rotating member includes a shaft seat. A shaft includes a first end coupled to the shaft seat and a second end extending through a shaft-receiving hole of the at least one bearing. A dustproof member includes a lower face and an upper face. The lower face is spaced from the open end of the shaft tube. The dustproof member covers the opening. The upper face of the dustproof member abuts a bottom of the shaft seat. The dustproof member has an outer diameter larger than an inner diameter of the shaft tube. The dustproof bearing assembly can be used in a motor.

A drive unit for a hybrid module includes a housing assembly and an electric motor including a stator and a rotor. The stator is fixed to the housing assembly. The drive unit further includes an assembly configured for rotatably connecting the rotor to an internal combustion engine The assembly includes a shaft configured for connecting to the internal combustion engine, a rear ball bearing on the shaft and a bearing housing on an outer race of the rear ball bearing. The bearing housing axially abuts the rear ball bearing so the rear ball bearing limits rearward axial movement of the bearing housing relative to the shaft. In other words, axial thrust from the bearing housing is transferred to the shaft by the axial load carrying capacity of the ball bearing.

The motor is provided with: a rotor core; permanent magnets disposed on the outer circumferential surface of the rotor core and magnetized in parallel orientation; and a salient pole saliently formed between the permanent magnets. The ratio of the number of magnetic poles of the permanent magnets to the number of teeth is 2:3. Sloped surfaces are formed on the side surfaces of the permanent magnets in the circumferential direction. The angle 2 between lines L3 and lines L2 is an electrical angle of 13 or more, said lines L3 connecting outer circumferential corner portions where the sloped surfaces and the outer circumferential surface are connected to each other and the shaft center, said lines L2 connecting the radial direction outermost side of the circumferential side surface of the salient pole and the shaft center.

The present invention provides A motor comprising a housing; a stator disposed inside the housing; a rotor disposed inside the stator; a shaft coupled to the rotor; and a teeth support part come in contact with the teeth of the stator, wherein the teeth support part includes a guide is disposed between the teeth adjacent to each other, wherein a width of the guide in the circumferential direction corresponding to the length between the end surfaces of the adjacent teeth, wherein an outer upper surface of the guide and inner bottom surfaces of the adjacent teeth form a shape of an arc.

An electric motor having a frame, a rotor assembly, and a stator assembly. The rotor assembly has a magnet, a bearing assembly, an impeller, and a shaft. The bearing assembly has a first bearing, a second bearing, and a biasing element between the first and second bearings. The first bearing is mounted to the frame by an o-ring, and the second bearing is mounted to the frame by adhesive.

An apparatus includes a base deck, which includes a base member and sidewalls extending from the base member. The base member and the sidewalls both include a non-metallic material and a metallic stiffening material.

A stator includes four split cores arranged in the circumferential direction. Each split core includes a yoke including a pair of joint parts, and a tooth. The shape of an end of the tooth is asymmetrical. An angle 1 formed by a side surface of the tooth and a side surface of the yoke on the inner side in the radial direction of the stator satisfies 90 degrees<1<180 degrees.

A actuator and a pump using the actuator are provided. The actuator is used to drive a pump body. The actuator includes a base, a transmission assembly and a motor received in the base. The motor includes a stator, a rotor, and a driving shaft. The driving shaft is connected to the transmission assembly. The base includes a mounting bracket. The mounting bracket is partly embedded in the motor. The actuator has good integrality and a compact structure.

A motor assembly includes a first bearing installed on a rotating shaft adjacent to an impeller to support a first support part of the rotating shaft, a second bearing installed on the rotating shaft adjacent to the rotor to support a second support part of the rotating shaft, a bearing bracket receiving the first and second bearings therein, an elastic member inserted between the first bearing and the bearing bracket or between the second bearing and the bearing bracket to press either the first bearing or the second bearing to get closer to each other, and a separation preventing member installed on the bearing bracket to fix the first bearing, the second bearing and the elastic member to an inner space of the bearing bracket such that at least one portion of the separation preventing member overlaps with one of the first bearing, the second bearing and the elastic member.