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CN-224204856-U - Armature winding and motor

CN224204856UCN 224204856 UCN224204856 UCN 224204856UCN-224204856-U

Abstract

The utility model discloses an armature winding and a motor, and relates to the technical field of motors, wherein the armature winding comprises a stator core and a stator winding, the stator core is provided with 72 winding grooves, the stator winding comprises a plurality of flat wire conductors, 4 layers of flat wire conductors are arranged in each winding groove, the flat wire conductors are connected to form a three-phase winding, each phase winding comprises a first branch and a second branch which are connected in parallel, each first branch and each second branch are provided with a lead-in end and a lead-out end, the first branch and the second branch are formed by repeatedly winding the lead-in ends on adjacent layers of the winding grooves along the circumferential direction of the stator core to the lead-out ends, the lead-out ends of the first branch and the lead-out ends of the second branch are positioned on the same layer of the two winding grooves, and one winding groove is arranged between the lead-out ends of the first branch and the lead-out ends of the second branch. The technical scheme provided by the utility model aims at centralizing the positions of the outgoing lines of the winding, and is beneficial to simplifying the busbar structure so as to control the production cost.

Inventors

  • LIANG JIE
  • WANG ZHENG
  • Liu aofeng
  • LIU WEI

Assignees

  • 格至驱智能科技(上海)有限公司

Dates

Publication Date
20260505
Application Date
20250506

Claims (9)

  1. 1. An armature winding, the armature winding comprising: a stator core provided with 72 winding grooves, and The stator winding comprises a plurality of flat wire conductors, 4 layers of the flat wire conductors are arranged in each winding groove, the flat wire conductors are connected to form a three-phase winding, each phase winding comprises a first branch and a second branch which are connected in parallel, each first branch and each second branch are provided with a lead-in end and a lead-out end, each first branch and each second branch are formed by repeatedly winding the lead-in ends along the circumferential direction of the stator core on adjacent layers of the winding grooves to the lead-out ends, the lead-out ends of the first branches and the lead-out ends of the second branches are located on the same layer of the two winding grooves, and one winding groove is arranged between the lead-out ends of the first branches and the lead-out ends of the second branches.
  2. 2. The armature winding of claim 1, wherein x, y are defined as the y-th layer of an x-th slot, wherein x e [1,72], y e [ a, d ], the sequence of the slots being a, b, c, d from inside to outside; The path of the first branch is as follows: 4d-15c-29d-39c-52d-60c-1d-12c-25d-36c-49d-63c-4b-15a-28b-39a-52b-60a-1b-12a-25b-36a-49b-63a-72a-64b-51a-40b-27a-16b-3a-61b-48a-37b-24a-13b-72c-64d-51c-40d-27c-16d-3c-61d-48c-37d-24c-13d; the path of the second branch is as follows: 2d-13c-26d-37c-50d-62c-3d-14c-27d-38c-51d-61c-2b-13a-26b-37a-50b-62a-3b-14a-27b-38a-51b-61a-2a-62b-49a-38b-25a-14b-1a-63b-50a-39b-26a-15b-2c-62d-49c-38d-25c-14d-1c-63d-50c-39d-15c-15d.
  3. 3. The armature winding of claim 1 wherein x, y are defined as the y-th layer of the x-th slot, wherein x e 1,72, y e a, d, the number of layers of the slot being a, b, c, d from inside to outside; The path of the first branch is as follows: 4d-14c-28d-38c-52d-59c-1d-11c-25d-35c-49d-62c-4b-14a-28b-38a-52b-59a-1b-11a-25b-35a-49b-62a-71a-64b-50a-40b-26a-16b-2a-61b-47a-37b-23a-13b-71c-64d-50c-40d-26c-16d-2c-61d-47c-37d-23c-13d; the path of the second branch is as follows: 2d-12c-26d-36c-50d-61c-3d-13c-27d-37c-51d-60c-2b-12a-26b-36a-50b-61a-3b-13a-27b-37a-51b-60a-1a-62b-48a-38b-24a-14b-72a-63b-49a-39b-25a-15b-1c-62d-48c-38d-24c-14d-72c-63d-49c-39d-25c-15d.
  4. 4. The armature winding of claim 1, wherein the lead-in of the first leg and the lead-in of the second leg are located in a same layer of two of the winding slots, and wherein the lead-in of the first leg and the lead-in of the second leg are spaced apart by one of the winding slots, and wherein the lead-in and the lead-out of the first leg are located in a same layer of different of the winding slots.
  5. 5. The armature winding of claim 1, wherein the three-phase windings comprise a U-phase winding, a V-phase winding, and a W-phase winding, the U-phase winding comprising the first leg and the second leg; The V-phase winding is obtained by rotating 8 slots along the increasing direction of the slot positions of the winding slots relative to the U-phase winding; The W-phase winding is obtained by rotating 16 slots along the increasing direction of the slot positions of the winding slots relative to the U-phase winding.
  6. 6. The armature winding of claim 1, wherein the first leg comprises a first portion and a second portion that are welded together, a beginning of the first portion being a lead-in of the first leg, and an end of the second portion being a lead-out of the first leg; The first part and the second part comprise a plurality of flat wire conductors, the flat wire conductors are sequentially welded and connected, the beginning end and the end of each flat wire conductor respectively penetrate through adjacent layers of different wire winding grooves, and the tail end of the first part and the beginning end of the second part are arranged on the same layer of different wire winding grooves and are connected through welding.
  7. 7. The armature winding of claim 1, wherein the second leg includes a third portion and a fourth portion connected, a beginning of the third portion being a lead-in of the second leg and an end of the fourth portion being a lead-out of the second leg; The third part and the fourth part comprise a plurality of flat wire conductors, the flat wire conductors are sequentially welded and connected, the beginning end and the end of each flat wire conductor respectively penetrate through adjacent layers of different wire winding grooves, and the tail end of the third part and the beginning end of the fourth part are arranged on the same layer of different wire winding grooves and are connected through welding.
  8. 8. The armature winding of any one of claims 1 to 7, wherein the flat wire conductor is a hairpin flat wire.
  9. 9. An electric machine comprising an armature winding according to any one of claims 1 to 8.

Description

Armature winding and motor Technical Field The utility model relates to the technical field of motors, in particular to an armature winding and a motor. Background The flat wire motor has the advantages of improving the voltage resistance of the winding, reducing the length of the winding end part and the like, so that more and more flat wire motors are applied to new energy automobile driving systems. The existing motor mainly adopts a wave winding or lap winding structure, and the alternating current resistance of the motor can be effectively reduced by designing flat wire conductors in the winding structure into multiple layers. However, as the number of layers of flat wire conductors increases, the wiring mode of the winding structure is more and more complex, so that the positions of leads of the winding are scattered, the subsequent bus topology structure is complex, and the production cost of the motor is increased. Disclosure of utility model The utility model mainly aims to provide an armature winding and a motor, aims to concentrate the positions of outgoing lines of the winding, and is beneficial to simplifying a busbar structure so as to control production cost. In order to achieve the above object, the present utility model provides an armature winding, including: a stator core provided with 72 winding grooves, and The stator winding comprises a plurality of flat wire conductors, 4 layers of the flat wire conductors are arranged in each winding groove, the flat wire conductors are connected to form a three-phase winding, each phase winding comprises a first branch and a second branch which are connected in parallel, each first branch and each second branch are provided with a lead-in end and a lead-out end, each first branch and each second branch are formed by repeatedly winding the lead-in ends along the circumferential direction of the stator core on adjacent layers of the winding grooves to the lead-out ends, the lead-out ends of the first branches and the lead-out ends of the second branches are located on the same layer of the two winding grooves, and one winding groove is arranged between the lead-out ends of the first branches and the lead-out ends of the second branches. In one embodiment, x and y are defined as the y layer of the x-th wire winding groove, wherein x epsilon [1,72], y epsilon [ a, d ], and the layer sequence of the wire winding groove is a, b, c, d from inside to outside; The path of the first branch is as follows: 4d-15c-29d-39c-52d-60c-1d-12c-25d-36c-49d-63c-4b-15a-28b-39a-52b-60a-1b-12a-25b-36a-49b-63a-72a-64b-51a-40b-27a-16b-3a-61b-48a-37b-24a-13b-72c-64d-51c-40d-27c-16d-3c-61d-48c-37d-24c-13d; the path of the second branch is as follows: 2d-13c-26d-37c-50d-62c-3d-14c-27d-38c-51d-61c-2b-13a-26b-37a-50b-62a-3b-14a-27b-38a-51b-61a-2a-62b-49a-38b-25a-14b-1a-63b-50a-39b-26a-15b-2c-62d-49c-38d-25c-14d-1c-63d-50c-39d-15c-15d. In one embodiment, x and y are defined as the y layer of the x-th wire winding groove, wherein x epsilon [1,72], y epsilon [ a, d ], and the layer numbers of the wire winding grooves are a, b, c, d from inside to outside respectively; The path of the first branch is as follows: 4d-14c-28d-38c-52d-59c-1d-11c-25d-35c-49d-62c-4b-14a-28b-38a-52b-59a-1b-11a-25b-35a-49b-62a-71a-64b-50a-40b-26a-16b-2a-61b-47a-37b-23a-13b-71c-64d-50c-40d-26c-16d-2c-61d-47c-37d-23c-13d; the path of the second branch is as follows: 2d-12c-26d-36c-50d-61c-3d-13c-27d-37c-51d-60c-2b-12a-26b-36a-50b-61a-3b-13a-27b-37a-51b-60a-1a-62b-48a-38b-24a-14b-72a-63b-49a-39b-25a-15b-1c-62d-48c-38d-24c-14d-72c-63d-49c-39d-25c-15d. In an embodiment, the lead-in end of the first branch and the lead-in end of the second branch are located at the same layer of the two winding grooves, and the lead-in end of the first branch and the lead-in end of the second branch are separated by one winding groove, and the lead-in end and the lead-out end of the first branch are located at the same layer of different winding grooves. In an embodiment, the three-phase windings comprise a U-phase winding, a V-phase winding, and a W-phase winding, the U-phase winding comprising the first leg and the second leg; The V-phase winding is obtained by rotating 8 slots along the increasing direction of the slot positions of the winding slots relative to the U-phase winding; The W-phase winding is obtained by rotating 16 slots along the increasing direction of the slot positions of the winding slots relative to the U-phase winding. In an embodiment, the first branch comprises a first part and a second part which are connected in a welding way, the starting end of the first part is the leading-in end of the first branch, and the tail end of the second part is the leading-out end of the first branch; The first part and the second part comprise a plurality of flat wire conductors, the flat wire conductors are sequentially welded and connected, the beginning end and the end of each flat wire conductor respectively penetrate t