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CN-122001112-A - Electric device and motor

CN122001112ACN 122001112 ACN122001112 ACN 122001112ACN-122001112-A

Abstract

The application discloses electric equipment and a motor, the electric equipment comprises a motor, an output part and a motor, wherein the motor comprises a stator and a rotor, the rotor rotates around a first axis as a center, the output part is arranged to be driven by power provided by the motor, the stator comprises a stator core and windings, the stator core comprises a yoke part and tooth parts extending from the yoke part to the rotor, the tooth parts are circumferentially arranged along the axis of the rotor, adjacent tooth parts define stator slots for accommodating the windings, the windings comprise coils and a retainer for supporting the coils, the windings are at least partially arranged in the stator slots, the retainer is provided with filling parts, the filling parts are configured to fill gaps existing in the windings, and the filling parts at least comprise heat conducting and non-magnetic conducting materials. The electric equipment has good performance.

Inventors

  • LI NIAN
  • XU QIAN

Assignees

  • 南京泉峰科技有限公司

Dates

Publication Date
20260508
Application Date
20250919
Priority Date
20241108

Claims (11)

  1. 1. An electrically powered device comprising: the motor comprises a stator and a rotor, wherein the rotor rotates by taking a first axis as a center; an output section configured to be driven by power supplied from the motor; The stator comprises a stator core and windings; The stator core comprises a yoke part and tooth parts extending from the yoke part to the rotor, wherein a plurality of tooth parts are circumferentially arranged along the axis of the rotor, and two adjacent tooth parts define a stator slot for accommodating the winding; The winding comprises a coil and a retainer supporting the coil, and the winding is at least partially arranged in the stator slot, wherein the retainer is provided with a filling part, the filling part is configured to fill a gap existing in the winding, and the filling part at least comprises a heat-conducting and non-magnetic material.
  2. 2. The electrically powered device of claim 1, wherein the gap comprises at least a gap between the coil and a cage.
  3. 3. The electrically powered device of claim 1, wherein the stator slot is provided with an opening through which the winding is integrally inserted into the stator slot.
  4. 4. The electromotive device according to claim 1, wherein the holder includes a support portion provided at an outer circumference of the tooth portion, the coil being supported by the support portion, and the filling portion being formed at the support portion.
  5. 5. The electromotive device according to claim 4, wherein the filling part is formed on the support part in a glue injection manner.
  6. 6. The electrically powered device of claim 4, wherein the filler portion, the support portion, and the coil are injection molded as one piece.
  7. 7. The electromotive device according to claim 4, wherein the holder further comprises a first end surface provided at one axial end of the support portion, the first end surface extending radially along the support portion, and a second end surface provided at the other axial end of the support portion, the second end surface extending radially along the support portion, the first end surface being connected to an inner side of the yoke portion.
  8. 8. The electrically powered device of claim 1, wherein the motor has a slot fill ratio of 40% or more and 70% or less.
  9. 9. The electrically powered device of claim 1, wherein the stator includes a plurality of the windings, the retainers of the windings being provided with connecting portions by which the plurality of windings are connected to one another, the connecting portions restricting movement of the windings in radial and axial directions relative to the stator core.
  10. 10. An electrically operated device according to claim 3, wherein the openings in the stator core are provided as equally wide openings.
  11. 11. An electric machine, comprising: a rotor rotating around a first axis; A stator including a stator core and windings; The stator core comprises a yoke part and tooth parts extending from the inner side of the yoke part, wherein a plurality of tooth parts are circumferentially arranged along the axis of the rotor, and two adjacent tooth parts define a stator slot for accommodating the winding; The winding comprises a coil and a retainer supporting the coil, and the winding is at least partially arranged in the stator slot, wherein the retainer is provided with a filling part, the filling part is configured to fill a gap existing in the winding, and the filling part at least comprises a heat-conducting and non-magnetic material.

Description

Electric device and motor Technical Field The present application relates to an electric apparatus, and more particularly, to an electric apparatus and a motor using a motor drive. Background In the related art, an electric device includes a motor connected to a power source to power the electric device. The motor may be a Direct Current (DC) motor. The motor includes a stator and a rotating rotor. The stator comprises a stator core and a winding, a stator groove is formed in the circumferential direction of the stator core, and the winding is wound on the stator core through the stator groove. In the related art, a semi-closed slot structure is generally adopted, the slot opening size of the stator slot is smaller, and a higher slot filling rate is difficult to achieve through slot opening winding. Loose wires have poor heat conduction performance and affect heat dissipation of the winding. This section provides background information related to the application, which is not necessarily prior art. Disclosure of Invention It is an object of the present application to solve or at least mitigate some or all of the above problems. Therefore, an object of the present application is to provide a motor and an electromotive device having good heat conductive properties. In order to achieve the above object, the present application adopts the following technical scheme: An electromotive device comprises a motor, wherein the motor comprises a stator and a rotor, the rotor rotates around a first axis as a center, an output part is arranged to be driven by power provided by the motor, the stator comprises a stator core and windings, the stator core comprises a yoke part and teeth extending from the yoke part to the rotor, the teeth are circumferentially arranged along the axis of the rotor, adjacent teeth define stator slots for accommodating the windings, the windings comprise coils and a retainer for supporting the coils, the windings are at least partially arranged in the stator slots, the retainer is provided with filling parts, the filling parts are configured to fill gaps existing in the windings, and the filling parts at least comprise heat conducting and non-magnetic conducting materials. In some embodiments, the gap includes at least a gap between the coils and the cage. In some embodiments the stator slots are provided with openings through which the windings are integrally inserted into the stator slots. In some embodiments, the holder includes a support portion provided at an outer circumference of the tooth portion, the coil is supported by the support portion, and the filling portion is formed at the support portion. In some embodiments, the filling portion is formed on the supporting portion by way of glue injection. In some embodiments, after the coil is wound directly on the support portion, the material constituting the filling portion is filled or smeared on the outer periphery of the coil by means of glue injection. In some embodiments, the filler portion, the support portion, and the coil are injection molded as one piece. In some embodiments, the shaped coil outer Zhou Zhusu forms the support after the coil wire is independently wound. In some embodiments, a filler is integrally injection molded around the outer circumference of the coils to fill the gaps between the coils. In some embodiments, the cage further includes a first end surface disposed at one axial end of the support portion, the first end surface extending radially along the support portion, and a second end surface disposed at the other axial end of the support portion, the second end surface extending radially along the support portion, the first end surface being connected to an inner side of the yoke. In some embodiments, the motor has a slot fill ratio of greater than or equal to 40% and less than or equal to 70%. In some embodiments, the stator includes a plurality of windings, the retainers of the windings being provided with connection portions by which the plurality of windings are connected to each other. In some embodiments, the connection limits movement of the windings in radial and axial directions relative to the stator core. In some embodiments, the stator further comprises a limiting portion in limiting connection with the stator core, the limiting portion limiting movement of the winding in radial and axial directions relative to the stator core. In some embodiments, the openings in the stator core are provided as equally wide openings. The motor comprises a rotor, a stator and a stator, wherein the rotor rotates around a first axis, the stator comprises a stator core and windings, the stator core comprises a yoke part and tooth parts extending from the inner side of the yoke part, the tooth parts are circumferentially distributed along the axis of the rotor, two adjacent tooth parts define stator slots for accommodating the windings, the windings comprise coils and a retainer for supporting the coils, the windings