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CN-122001107-A - Motor assembly, motor stator and hub motor

CN122001107ACN 122001107 ACN122001107 ACN 122001107ACN-122001107-A

Abstract

The application discloses a motor assembly, a motor stator and a hub motor, and relates to the technical field of motors. The motor assembly is convenient for winding the stator winding and is also beneficial to improving the efficiency of the motor. The motor assembly comprises a stator bracket, stator teeth and a connecting component. The stator support is provided with a fixing part, the stator teeth are provided with winding parts and connecting parts, the winding parts are used for winding stator windings, the connecting parts are matched with the fixing parts, a plurality of stator teeth are respectively abutted against the fixing parts through the connecting parts along the circumferential direction of the stator support, and the connecting parts are fixedly connected with the fixing parts through connecting components. The motor assembly is used in a motor.

Inventors

  • LIU MIAO
  • CHEN HUAWEI
  • JIN YUAN

Assignees

  • 北京零极创新科技有限公司

Dates

Publication Date
20260508
Application Date
20241030

Claims (11)

  1. 1. An electric motor assembly, comprising: a stator bracket having a fixing portion; The stator teeth are provided with winding parts and connecting parts, the winding parts are used for winding stator windings, the connecting parts are matched with the fixing parts, and a plurality of stator teeth are respectively abutted with the fixing parts through the connecting parts along the circumferential direction of the stator bracket; The connecting parts are fixedly connected with the fixing parts through the connecting parts.
  2. 2. The motor assembly of claim 1, wherein the securing portion includes at least two collars extending in the circumferential direction on the stator frame, the at least two collars being distributed in an axial direction of the stator frame, and the connecting portion being located between the at least two collars in the axial direction.
  3. 3. The motor assembly of claim 2, wherein the connecting portion has a first through hole therethrough, the first through hole passing through the connecting portion in the axial direction, the collar has a second through hole therethrough, the connecting member has at least a portion passing through the first through hole and the second through hole to fixedly connect the connecting portion and the fixing portion.
  4. 4. A motor assembly as claimed in claim 3, wherein the axis of the first through bore is located in a plane of symmetry of the stator teeth.
  5. 5. The motor assembly of claim 3, wherein the connecting component comprises a positioning piece and a fastening piece, the first through hole is matched with the positioning piece, a part of the convex ring is provided with a second through hole matched with the positioning piece, the other part of the convex ring is provided with a second through hole matched with the fastening piece, the positioning piece is arranged in the second through hole and the first through hole in a penetrating mode, one end of the positioning piece is abutted with one convex ring, the fastening piece is arranged at the other end of the positioning piece in a sleeved mode, one part of the fastening piece is arranged in the second through hole in a penetrating mode, and the other part of the fastening piece is abutted with the other convex ring.
  6. 6. The motor assembly of claim 5, wherein the fastener is in interference fit with the second through hole, the fastener abuts against one side, away from the center of the stator frame, between the positioning piece and the first through hole along the radial direction of the stator frame, and one side, close to the center of the stator frame, between the positioning piece and the first through hole, and the connecting portion abuts against the fixing portion under the action of the connecting component.
  7. 7. The motor assembly according to claim 5 or 6, wherein the edge of the second through hole on the collar has a boss, and the positioning member has a blocking protrusion thereon in the axial direction, the blocking protrusion pressing the fastener against the boss in the axial direction, or the blocking protrusion pressing the fastener against the collar in the axial direction.
  8. 8. The motor assembly according to any one of claims 1 to 6, wherein positioning holes are formed in both sides of the connecting portion in the circumferential direction, and positioning pins are provided in the corresponding positioning holes on the adjacent two stator teeth.
  9. 9. A motor assembly according to any one of claims 1 to 6, wherein the connecting portion has mating grooves and protrusions on each side of the connecting portion in the circumferential direction, the protrusions on adjacent two of the stator teeth being located in the grooves.
  10. 10. A motor stator, comprising: the motor assembly of any one of claims 1 to 9; And stator windings, wherein each winding part is provided with the stator windings.
  11. 11. A wheel hub motor, comprising: The motor stator of claim 10, said stator support having an axial bore therein, said stator support being fixedly connected to the vehicle body through said axial bore; the motor rotor is coaxially arranged with the stator bracket and is used for installing a tire.

Description

Motor assembly, motor stator and hub motor Technical Field The application relates to the technical field of motors, in particular to a motor assembly, a motor stator and a hub motor. Background The stator is an important part of an electric machine, and the main function of the stator is to generate a rotating magnetic field, and the stator generally comprises a stator core and stator windings, wherein the stator windings are formed by a plurality of turns of wires wound in tooth slots of the stator. The structure of the stator core has great influence on the winding of the stator winding, and the stator in the related art is inconvenient to wind the stator winding and also can influence the efficiency of the motor. Disclosure of Invention The application provides a motor assembly, a motor stator and a hub motor, which are convenient for winding a stator winding and are beneficial to improving the efficiency of the motor. A first aspect of the present application provides an electric machine assembly comprising a stator frame, stator teeth, and a connection assembly. The stator support is provided with a fixing part, the stator teeth are provided with winding parts and connecting parts, the winding parts are used for winding stator windings, the connecting parts are matched with the fixing parts, a plurality of stator teeth are respectively abutted against the fixing parts through the connecting parts along the circumferential direction of the stator support, and the connecting parts are fixedly connected with the fixing parts through connecting components. According to the motor assembly provided by the application, the fixing part is arranged on the stator bracket, so that the mounting position of the stator teeth can be provided by the fixing part. And set up winding portion on the stator tooth, be convenient for wind stator winding on the stator tooth, pass through coupling assembling fixed connection with the connecting portion and the fixed part of stator tooth, be favorable to promoting the reliability and the stability that stator tooth and stator support are connected. Compared with the related art, the stator teeth and the stator support are integrally arranged, and when the stator winding is wound, the stator winding is inconvenient to wind because the space between the adjacent stator teeth is limited. When the motor assembly provided by the application is adopted, the lead wires of the stator windings are wound on the stator support, the windings of the stator windings can be firstly arranged on each independent stator tooth, and after the windings of the stator windings are completed, the stator teeth wound with the stator windings are fixedly arranged on the stator support through the connecting component, so that the lead wires of the stator windings can be regularly arranged on the stator teeth, the space between the adjacent stator teeth can be fully utilized, the slot filling rate of the motor stator can be improved, and the purposes of increasing the motor power and efficiency under the same volume can be realized. Therefore, the motor assembly provided by the application is not only convenient for winding the stator winding, but also beneficial to improving the efficiency of the motor. In one possible implementation manner of the application, the fixing part comprises at least two convex rings which are formed by extending on the stator support along the circumferential direction, the at least two convex rings are distributed along the axial direction of the stator support, and the connecting part is positioned between the at least two convex rings along the axial direction. According to the technical scheme, the fixing part comprises at least two convex rings, and a space for accommodating the connecting part can be formed between the at least two convex rings, so that the connecting part of the stator teeth can be clamped between the at least two convex rings, and the connecting part and the convex rings can be conveniently fixed through the connecting assembly. In one possible implementation manner of the application, the connecting part is provided with a first through hole matched with the connecting component, the first through hole penetrates through the connecting part along the axial direction, the convex ring is provided with a second through hole matched with the connecting component, and at least one part of the connecting component penetrates through the first through hole and the second through hole to fixedly connect the connecting part and the fixing part. According to the technical scheme, as the first through hole is formed in the connecting part, and the second through hole is formed in the convex ring, one part of the connecting assembly conveniently penetrates through the first through hole and the second through hole, and the other part of the connecting assembly is abutted to the convex ring, so that the stator teeth can be fixedly arranged on the stator bracket