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CN-122001108-A - Motor assembly and assembling method thereof

CN122001108ACN 122001108 ACN122001108 ACN 122001108ACN-122001108-A

Abstract

The invention discloses a motor assembly and an assembling method thereof, wherein the motor comprises a stator assembly, each winding coil of the motor is positioned between two claw pole plates which are oppositely arranged, each claw pole plate is provided with a limiting part, the claw pole plates at two ends are in limiting arrangement or fixed connection with the cylinder along the axial direction of the cylinder, two claw pole plates which are oppositely arranged in each adjacent winding are respectively in limiting arrangement or fixed connection with the cylinder, or one of the two claw pole plates which are oppositely arranged is in limiting arrangement or fixed connection with the cylinder, the limiting arrangement or fixed connection of the two claw pole plates which are oppositely arranged can respectively limit the circumferential relative position of each claw pole plate relative to the cylinder, and the circumferential positioning meeting the functional requirements of the motor is provided for each claw pole plate, so that the product setting cost and the process realization cost can be effectively reduced.

Inventors

  • Request for anonymity
  • Request for anonymity

Assignees

  • 杭州三花研究院有限公司

Dates

Publication Date
20260508
Application Date
20241101

Claims (11)

  1. 1. The motor assembly is characterized by comprising a stator assembly (10), wherein the stator assembly (10) comprises a cylinder body (2) and multiphase windings arranged in the cylinder body (2), each phase of winding is positioned between two opposite claw pole plates (1), pole teeth of the two claw pole plates (1) extend from respective pole plate bodies (13) in opposite directions, at least part of each pole tooth (11) of one claw pole plate (1) extends into a tooth slot (12) of the other claw pole plate (1), two adjacent claw pole plates (1) of two adjacent windings are arranged in opposite directions, and the pole teeth (11) of the two claw pole plates (1) arranged in opposite directions are staggered in the circumferential direction; In the axial projection plane, the limit parts (131) of the two claw pole plates (1) of each phase of winding are staggered, and the limit parts (131) of the two claw pole plates (1) which are oppositely arranged and adjacent to each other of the windings are overlapped; along the axial direction of the cylinder body (2), the claw pole plates (1) at the two ends are in limit setting or fixed connection with the cylinder body (2); in each adjacent phase of winding, two claw pole plates (1) arranged in opposite directions are respectively in limit setting or fixed connection with the cylinder body (2), or one of the two claw pole plates (1) arranged in opposite directions is in limit setting or fixed connection with the cylinder body (2), and the two claw pole plates (1) arranged in opposite directions are in limit setting or fixed connection.
  2. 2. The motor assembly according to claim 1, characterized in that the teeth (11) of the claw-pole plates (1) of the windings of each phase are identical, and the limit portions (131) of the claw-pole plates (1) of the windings of each phase are identical, and the relative positional relationship of the limit portions (131) and the teeth (11) is identical.
  3. 3. The motor assembly according to claim 2, wherein the limiting portions (131) are recessed inward from the outer peripheral edge of the pole plate body (13), gamma+1-stage hole portions (21) are formed in the side wall of the cylinder (2), gamma is the number of phases, and each stage of hole portions (21) is disposed opposite to at least part of the corresponding limiting portion (131).
  4. 4. A motor assembly according to claim 3, characterized in that in the axial projection plane, adjacent two stages of the hole portions (21) have an angle θ between the line connecting the centers of the center holes of the claw-pole plates (1) at the center positions in the circumferential direction, and θ= (α - α/γ) +2n) +2n= (α+α/γ) +2n+α, where α is the step distance, α=360 °/2β, β is the number of pole teeth, and N is 0 or a natural number.
  5. 5. The motor assembly according to claim 4, wherein the hole portions (21) of the respective stages are sequentially provided at equal intervals in the circumferential direction in the cylinder (2) in an axial projection plane.
  6. 6. An electrical machine assembly according to any one of claims 1 to 3, wherein, Each claw pole plate (1) is provided with a limiting part; In the axial projection plane, the connecting line of the tooth groove (12) and the center hole center of the claw-pole plate (1) at the central position in the circumferential direction is a first datum line (l 1), the connecting line of the tooth (11) and the center hole center of the claw-pole plate (1) at the central position in the circumferential direction is a second datum line (l 2), and the connecting line of the limiting part (131) and the center hole center of the claw-pole plate (1) at the central position in the circumferential direction is a limiting line (l); The limit line (l) has an angle delta with the first reference line (l 1) or the limit line (l) has an angle delta with the second reference line (l 2), wherein delta=alpha/2 gamma.
  7. 7. An electrical machine assembly according to any one of claims 1-3, wherein, The claw pole plate (1) is provided with two limiting parts (131); In the axial projection plane, the connecting line of the tooth groove (12) and the center hole center of the claw-pole plate (1) at the central position in the circumferential direction is a first datum line (l 1), the connecting line of the tooth (11) and the center hole center of the claw-pole plate (1) at the central position in the circumferential direction is a second datum line (l 2), the connecting line of the two limit concave parts (131) and the center hole center of the claw-pole plate (1) at the central position in the circumferential direction is a limit line (l), and the included angle of the two limit lines (l) is delta 2; The second datum line (l 2) has an included angle delta 1 with the limit line (l) close to the second datum line in the circumferential direction, or the first datum line (l 1) has an included angle delta 1 with the limit line (l) close to the first datum line in the circumferential direction, and 2δ1+δ2=2n+α±α/γ, wherein 0 is equal to or less than δ1 is equal to or less than 2α, and N is 0 or a natural number.
  8. 8. A method of assembling an electric motor assembly, comprising the steps of: Providing a claw pole plate, wherein the claw pole plate comprises a limiting part; providing a positioning mechanism; Assembling at least one phase winding, wherein the winding comprises a first claw pole plate, a coil and a second claw pole plate, the first claw pole plate, the coil and the second claw pole plate of the at least one phase winding are sequentially installed, and the limiting parts of the first claw pole plate and the limiting parts of the second claw pole plate are staggered in the circumferential direction in an axial projection plane by utilizing the positioning mechanism; Two claw pole plates which are oppositely arranged are assembled, two limiting parts (131) of the two claw pole plates (1) which are oppositely arranged are arranged in the axial projection plane in a superposition mode by utilizing the positioning mechanism, and pole teeth (11) of the two claw pole plates (1) which are oppositely arranged are arranged in the adjacent two windings are staggered in the circumferential direction.
  9. 9. The method of assembling a motor assembly of claim 8, comprising the steps of: providing a claw pole plate, wherein the claw pole plate comprises a pole plate body, and the limit part is recessed inwards from the periphery of the pole plate body; providing a cylinder, wherein the side wall of the cylinder is provided with a plurality of hole parts (21); The step of matching the positioning mechanism with the limiting part comprises the following steps: the claw pole plate is arranged in the cylinder body; extending at least part of the positioning mechanism from the outside of the cylinder body into the cylinder body through the corresponding hole of the corresponding hole part, wherein the part of the positioning mechanism arranged in the cylinder body is defined as a first part; and extending at least part of the first part into the concave area of the limiting part, so that the positioning mechanism limits the circumferential position of the claw-pole plate.
  10. 10. The method of assembling a motor assembly of claim 9, comprising the steps of: the step of matching the positioning mechanism with the limiting part comprises the following steps: The claw-pole plate is rotated around the circumference of the claw-pole plate, so that the limiting part of the claw-pole plate and the first part are axially centered, and the claw-pole plate is axially moved, so that the limiting part and at least part of the first part are matched.
  11. 11. The method of assembling a motor assembly of claim 8, comprising the steps of: providing a cylinder; The step of assembling at least one phase winding comprises: The positioning mechanism acquires the first claw pole plate and places the first claw pole plate at a first position of the cylinder body, wherein the first position is a relative position of the first claw pole plate and the cylinder body; The positioning mechanism acquires the second claw pole plate and places the second claw pole plate at a second position of the cylinder, wherein the second position of the positioning mechanism is a relative position of the second claw pole plate and the cylinder, so that the first claw pole plate is arranged; And fixing or limiting the first claw pole plate and the cylinder body.

Description

Motor assembly and assembling method thereof Technical Field The invention relates to the field of pneumatic, in particular to a pneumatic device and a manufacturing method. Background The coil of the motor device is sleeved outside the pole teeth of two opposite claw pole plates, and the pole tooth of one claw pole plate is inserted between the two pole teeth of the other claw pole plate. Meanwhile, corresponding pole teeth on two claw pole plates of two adjacent phases have a certain included angle in the circumferential direction so as to meet the motor performance requirement. Taking a three-phase motor as an example, six claw-pole plates are placed in an injection mold as inserts in the related art and are positioned and connected through process inserts, so that claw-pole plate assemblies meeting the requirements of the circumferential relative position relationship among the claw-pole plates are formed, and then the claw-pole plate assemblies are placed in a metal sleeve to be assembled into the motor. However, the relative position between the claw-pole plates is limited by the process insert connection, a set of injection mold needs to be independently developed, and the mold is complex and has high cost. Disclosure of Invention In order to solve the technical problems, the invention provides a motor device and an assembling method thereof, which can effectively reduce the manufacturing cost on the basis of meeting the relative position relation among claw pole plates. The invention provides a motor assembly, which comprises a stator assembly, wherein the stator assembly comprises a cylinder body and a multiphase winding arranged in the cylinder body, a coil of each phase winding is positioned between two claw pole plates which are oppositely arranged, pole teeth of the two claw pole plates extend from respective pole plate bodies in opposite directions, and at least part of the pole tooth of one claw pole plate extends into a tooth slot of the other claw pole plate; The pole plate body of each claw pole plate is provided with a limiting part, the limiting parts of two claw pole plates of each phase winding are staggered in an axial projection plane, and the limiting parts of two claw pole plates which are oppositely arranged of the adjacent two phase windings are overlapped; Along the axial direction of the cylinder, claw pole plates at two ends are in limit setting or fixed connection with the cylinder; In each adjacent phase of winding, two claw pole plates arranged in opposite directions are respectively and fixedly connected with the cylinder body in a limiting manner, or one of the two claw pole plates arranged in opposite directions is fixedly connected with the cylinder body in a limiting manner, and the two claw pole plates arranged in opposite directions are in a limiting manner or are fixedly connected with each other. The motor assembly is characterized in that the limit parts are arranged on the pole plate bodies of the claw pole plates, the limit parts of the two claw pole plates of each phase winding are staggered in an axial projection plane, the limit parts of the two claw pole plates of each phase winding are overlapped, the circumferential relative position relation between each claw pole plate is met, on one hand, at least part of the pole teeth of one of the two claw pole plates which are oppositely arranged and correspond to each phase winding can be ensured to extend into tooth grooves of the other, meanwhile, the corresponding pole teeth on the two claw pole plates which are oppositely arranged and correspond to each other phase winding can be ensured to be staggered in the circumferential direction, in addition, the two claw pole plates which are oppositely arranged and correspond to each other are respectively in limit arrangement or fixed connection with the cylinder in the axial direction of the cylinder, or one of the two claw pole plates which are oppositely arranged and the cylinder are in limit arrangement or fixed connection, the circumferential position of each claw pole plate which meets the functional requirement of the motor can be provided for each claw pole plate, the relative position of each claw pole plate relative to the cylinder can be respectively limited, and the overall cost can be effectively reduced. The invention also provides a motor assembly assembling method, which comprises the following steps: providing a claw pole plate, wherein the claw pole plate comprises a limiting part; providing a positioning mechanism; Assembling at least one phase of winding, wherein the winding comprises a first claw pole plate, a coil and a second claw pole plate, the first claw pole plate, the coil and the second claw pole plate of the at least one phase of winding are sequentially arranged, and a limiting part of the first claw pole plate and a limiting part of the second claw pole plate are staggered in the circumferential direction in an axial projection plane by