Abstract: The present disclosure provides a motor stator, a motor and a bus. The motor stator includes a stator tooth. The stator tooth includes a tooth root and a tooth crest. The tooth crest is provided on the tooth root. The tooth crest includes a first tooth crest part and a second tooth crest part. The first tooth crest part and the second tooth crest part are provided on two sides of the tooth root along the circumference of the motor stator, respectively, and a tooth crest air gap is formed between the first tooth crest part and the second tooth crest part. According to the present disclosure, the motor stator is adapt to reduce magnetic flux leakage, and enhance the utilization rate of a permanent magnet and output torque.

Abstract: A stator fixing structure is configured such that a projection (2) is provided to project from the outer periphery of a stator (1), which is formed by stacking a plurality of plate-shaped members, in a radial direction while a fastening member (11) is inserted into a fastening member inserting hole (3) formed in the projection (2) so as to fix the stator (1) to a frame (8), and the outer peripheral surface of the stator (1) except the projection (2) is fixed to the inner peripheral surface of the frame (8) by shrink fitting. A dent (4) is formed at the root of the projection (2), thereby reducing the proportion of the projection (2) in the periphery of the stator and increasing the contact area between the frame (8) and the stator (1) for the shrink fit part (7). Thus, the stator (1) can be effectively fastened to the frame (8).

Abstract: A segment for supporting electromagnetic coupling elements of a stator or rotor of an electrical machine comprises a plurality of elongate laminations which are stacked in a first direction to form a lamination stack with elongate edges of the laminations defining opposite first and second major faces of the lamination stack. The segment comprises a plurality of elongate compression devices passing internally through the lamination stack in the first direction and arranged to compress together the laminations in the lamination stack.

Abstract: Various embodiments of the disclosure include a dynamoelectric machine support system. In some embodiments, a support system for a dynamoelectric machine is disclosed, the support system having: a housing; a skeletal frame attached to the housing and at least partially contained within the housing; and at least one adjustment mechanism for applying a force to the skeletal frame to modify a stiffness of the skeletal frame.

Abstract: A brushless motor has a stator, a rotor rotatably disposed in an inner circumferential portion of the stator, and a resolver configured to detect a rotational position of the rotor with respect to the stator. The resolver has a resolver stator disposed at a fixed circumferential position with respect to the stator, and a resolver rotor disposed at a fixed circumferential position with respect to the rotor.

Abstract: A retainer in the stator of an electrical machine holds a plurality of stacked stator laminations in compression at an inner diameter of a stator core. The plurality of laminations have a central aperture and a plurality of teeth circumferentially spaced about the central aperture. The plurality of stacked laminations forms a contiguous stator core with a central aperture for housing a rotor and stator winding slots extending from one axial face of the stator core to an opposite axial face of the stator core. The retainer is adapted to be fitted in the stator slots adjacent the windings and adjacent the central aperture. The retainer extends from one axial face of the stator core to the opposite axial face of the stator core. The retainer has opposite longitudinal ends abutting the axial opposite faces of the stator core that hold the laminations in compression.

Abstract: A rotor for a multipolar synchronous electric machine including a plurality of salient poles, each salient pole being surrounded by an induction coil; a ring integrating the plurality of salient poles; wherein each salient pole includes a polar body integral with the ring; two removable pole tips facing each other on either side of the polar body; front parts provided along the ends of the polar body, to radially maintain the induction coil in a transverse portion thereof; the polar body including two slots formed on either side of the polar body and having a shape adapted for receiving the pole tips; the front parts blocking the displacements of the pole tips in the slots.

Abstract: Disclosed is an improved stator for a dynamoelectric machine including a stator core which has a plurality of core slots extending axially from a first end of the stator core to a second end of the stator core. The stator also includes a stator winding having a plurality of phases. Each phase of the stator winding includes at least a first filar. The first filar extends around the stator core and form a plurality of layers and has a plurality of slot segments disposed in the plurality of core slots. The slot segments are alternately connected at the first and second ends of the stator core by a plurality of end loop segments. The slot segments are configured such that at least two consecutive slot segments are disposed in substantially the same radial position relative to additional slot segments of the plurality of slot segments disposed in the respective core slots, and the at least two consecutive slot segments are disposed at differing radial distances from a central axis of the stator core.