Stator assembly and motor including the same
Patent Information
- Application Number
- KR1020210103157
- Authority / Receiving Office
- KR · KR
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-08-05
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2041-08-05
Smart Images
Figure 112021090480312-PAT00003_ABST
Abstract
Description
Technology Field
[0001] The present invention relates to a stator assembly and a motor including the stator assembly, and more specifically, to a stator assembly and a hairpin motor that can be used in a hairpin motor. Background Technology
[0002] In the case of a hairpin motor in which a coil consisting of multiple hairpins is wound, it is composed of a stator in which the coil is wound, a rotor, and a bus bar electrically connected to the coil.
[0003] According to conventional technology, in order to mount a motor, additional space must be provided for a bus bar as well as a stator and rotor, which resulted in the problem that securing additional space for mounting the motor was unavoidable.
[0004] In addition, according to conventional technology, manufacturing a hairpin motor required many types of hairpins depending on the coil winding method, which resulted in the problem of high costs and time required for manufacturing the hairpin motor. The problem to be solved
[0005] Therefore, the problem that the present invention aims to solve is to reduce the space required for mounting the motor by minimizing the volume occupied by the busbar for mounting the hairpin motor compared to the prior art.
[0006] In addition, another problem that the present invention aims to solve is to reduce the cost and time required to manufacture a hairpin motor by minimizing the types of hairpins required for manufacturing the hairpin motor. means of solving the problem
[0007] According to one aspect of the present invention for achieving the above objective, a stator assembly is provided comprising: a stator core having a plurality of slots formed along a circumferential direction (C); a plurality of coil bundles inserted into the plurality of slots; and a bus bar electrically connected to the plurality of coil bundles; wherein a plurality of layers spaced apart along a radial direction (R) are formed in each of the plurality of slots, and each of the plurality of coil bundles is provided with a lead wire and a neutral wire, and the bus bar is joined to the lead wire or the neutral wire, and at least a portion of the bus bar is disposed within a space formed between the plurality of coil bundles in the circumferential direction (C).
[0008] Each of the plurality of coil bundles comprises a crown portion provided at one end of the axial direction (A) which is perpendicular to the circumferential direction (C) and the radial direction (R), respectively; and a leg portion provided at the other end of the axial direction (A); and at least a portion of the bus bar may be disposed within a space formed between two adjacent leg portions in the circumferential direction (C).
[0009] The above bus bar may include: a first extension section extending along the axial direction (A) from an area joined to the leg portion; and a second extension section bent and extended from the first extension section.
[0010] The second extension section above may be extended along the radial direction (R).
[0011] The plurality of coil bundles are supplied with a three-phase alternating current, and the plurality of coil bundles include: a first coil bundle supplied with a U-phase current among the three-phase currents; a second coil bundle supplied with a V-phase current among the three-phase currents; and a third coil bundle supplied with a W-phase current among the three-phase currents; and the busbar comprises: a first busbar connected to the lead wire of the first coil bundle and supplying the U-phase current; a second busbar connected to the lead wire of the second coil bundle and supplying the V-phase current; a third busbar connected to the lead wire of the third coil bundle and supplying the W-phase current; and a fourth busbar connected to the neutral wire of the first to third coil bundles. It may include, wherein the first coil bundle includes a first-1 parallel coil and a first-2 parallel coil, the second coil bundle includes a second-1 parallel coil and a second-2 parallel coil, and the third coil bundle includes a third-1 parallel coil and a third-2 parallel coil.
[0012] A first U-phase junction formed by joining the lead wire of the first-1 parallel coil and the first busbar; a second U-phase junction formed by joining the lead wire of the first-2 parallel coil and the first busbar; a first V-phase junction formed by joining the lead wire of the second-1 parallel coil and the second busbar; a second V-phase junction formed by joining the lead wire of the second-2 parallel coil and the second busbar; a first W-phase junction formed by joining the lead wire of the third-1 parallel coil and the third busbar; and a second W-phase junction formed by joining the lead wire of the third-2 parallel coil and the third busbar. It may further include, wherein the first U-phase joint is provided at one end in the radial direction (R) of the leg portion provided in the first-1 parallel coil, the second U-phase joint is provided at the other end in the radial direction (R) of the leg portion provided in the first-2 parallel coil, the first V-phase joint is provided at the other end in the radial direction (R) of the leg portion provided in the second-1 parallel coil, and the second V-phase joint is provided at one end in the radial direction (R) of the leg portion provided in the second-2 parallel coil.
[0013] The first W-phase joint may be provided at one end in the radial direction (R) of the leg portion provided in the third-1 parallel coil, and the second W-phase joint may be provided at the other end in the radial direction (R) of the leg portion provided in the third-2 parallel coil.
[0014] A first-1 neutral junction formed by joining the neutral wire of the first-1 parallel coil and the fourth busbar; a first-2 neutral junction formed by joining the neutral wire of the first-2 parallel coil and the fourth busbar; a second-1 neutral junction formed by joining the neutral wire of the second-1 parallel coil and the fourth busbar; a second-2 neutral junction formed by joining the neutral wire of the second-2 parallel coil and the fourth busbar; a third-1 neutral junction formed by joining the neutral wire of the third-1 parallel coil and the fourth busbar; and a third-2 neutral junction formed by joining the neutral wire of the third-2 parallel coil and the fourth busbar. The first neutral joint is provided at the other end in the radial direction (R) of the leg portion where the first U-shaped joint is provided among the plurality of leg portions provided in the first parallel coil, and the second neutral joint may be provided at the one end in the radial direction (R) of the leg portion where the second U-shaped joint is provided among the plurality of leg portions provided in the first parallel coil.
[0015] The above 2-1 neutral junction may be provided at the one end in the radial direction (R) of the leg portion where the first V-phase junction is provided among the plurality of leg portions provided in the 2-1 parallel coil, and the above 2-2 neutral junction may be provided at the other end in the radial direction (R) of the leg portion where the second V-phase junction is provided among the plurality of leg portions provided in the 2-2 parallel coil.
[0016] The above 3-1 neutral junction may be provided at the other end in the radial direction (R) of the leg portion where the first W-phase junction is provided among the plurality of leg portions provided in the 3-1 parallel coil, and the above 3-2 neutral junction may be provided at the one end in the radial direction (R) of the leg portion where the second W-phase junction is provided among the plurality of leg portions provided in the 3-2 parallel coil.
[0017] The above busbar further includes a third extension section that is bent and extended from the second extension section and extends along the circumferential direction (C); and the third extension section provided in the fourth busbar may be provided closer to the stator core than the third extension section provided in each of the first to third busbars.
[0018] The third extension section provided in the third busbar may be provided outward in the radial direction (R) from the third extension section provided in the first busbar.
[0019] The third extension section provided in the second busbar may be provided inward in the radial direction (R) from the third extension section provided in the second busbar.
[0020] The first to third extension sections above may be provided within the plurality of coil bundles in the axial direction (A).
[0021] The busbar further includes a fourth extension section that is bent and extended from the third extension section and extends along the axial direction (A); and at least a portion of the fourth extension section may be provided within the plurality of coil bundles in the axial direction (A).
[0022] The stator core may have 96 slots along the circumferential direction (C), and each slot may have 8 layers along the radial direction (R).
[0023] When the 96 slots are each named as slots 1 through 96 along the circumferential direction (C) of the slots and layers 1 through 8 along the radial direction (R) of the slots, the 1-1 parallel coil, 1-2 parallel coil, 2-1 parallel coil, 2-2 parallel coil, 3-1 parallel coil, and 3-2 parallel coil can each be inserted into the slots in combinations of 5 slot pitch, 6 slot pitch, and 7 slot pitch.
[0024] The above 1-1 parallel coil, 1-2 parallel coil, 2-1 parallel coil, 2-2 parallel coil, 3-1 parallel coil, and 3-2 parallel coil can each be inserted into the slot to have an average slot pitch of 6 slots.
[0025] When the above 96 slots are each named slots 1 through 96 along the circumferential direction (C) and each slot is named layers 1 through 8 along the radial direction (R) of the slots, the above 1-1 parallel coil comprises layer 1 of slot 2, layer 2 of slot 8, layer 1 of slot 14, layer 2 of slot 20, layer 1 of slot 26, layer 2 of slot 32, layer 1 of slot 38, layer 2 of slot 44, layer 1 of slot 50, layer 2 of slot 56, layer 1 of slot 62, layer 2 of slot 68, layer 1 of slot 74, layer 2 of slot 80, layer 1 of slot 86, layer 2 of slot 91, and layer 1 of slot 1 Layer 1, Layer 2 of Slot 7, Layer 1 of Slot 13, Layer 2 of Slot 19, Layer 1 of Slot 25, Layer 2 of Slot 31, Layer 1 of Slot 37, Layer 2 of Slot 43, Layer 1 of Slot 49, Layer 2 of Slot 55, Layer 1 of Slot 61, Layer 2 of Slot 67, Layer 1 of Slot 73, Layer 2 of Slot 79, Layer 1 of Slot 85, Layer 2 of Slot 92, Layer 3 of Slot 2, Layer 4 of Slot 8, Layer 3 of Slot 14, Layer 4 of Slot 20, Layer 3 of Slot 26, Layer 4 of Slot 32, Layer 3 of Slot 38, Layer 4 of Slot 44, Layer 3 of Slot 50, Layer 4 of Slot 56, Layer 3 of Slot 62, Layer 4 of Slot 68, Layer 3 of Slot 74, Layer 4 of Slot 80, Layer 3 of Slot 86, Layer 4 of Slot 91, Layer 3 of Slot 1, Layer 4 of Slot 7, Layer 3 of Slot 13, Layer 4 of Slot 19, Layer 3 of Slot 25, Layer 4 of Slot 31, Layer 3 of Slot 37,Layer 4 of Slot 43, Layer 3 of Slot 49, Layer 4 of Slot 55, Layer 3 of Slot 61, Layer 4 of Slot 67, Layer 3 of Slot 73, Layer 4 of Slot 79, Layer 3 of Slot 85, Layer 4 of Slot 92, Layer 5 of Slot 2, Layer 6 of Slot 8, Layer 5 of Slot 14, Layer 6 of Slot 20, Layer 5 of Slot 26, Layer 6 of Slot 32, Layer 5 of Slot 38, Layer 6 of Slot 44, Layer 5 of Slot 50, Layer 6 of Slot 56, Layer 5 of Slot 62, Layer 6 of Slot 68, Layer 5 of Slot 74, and of Slot 80 Layer 6, Layer 5 of Slot 86, Layer 6 of Slot 91, Layer 5 of Slot 1, Layer 6 of Slot 7, Layer 5 of Slot 13, Layer 6 of Slot 19, Layer 5 of Slot 25, Layer 6 of Slot 31, Layer 5 of Slot 37, Layer 6 of Slot 43, Layer 5 of Slot 49, Layer 6 of Slot 55, Layer 5 of Slot 61, Layer 6 of Slot 67, Layer 5 of Slot 73, Layer 6 of Slot 79, Layer 5 of Slot 85, Layer 6 of Slot 92, Layer 7 of Slot 2, Layer 8 of Slot 8, Layer 7 of Slot 14, Layer 8 of Slot 20, Layer 7 of Slot 26, Layer 8 of Slot 32, Layer 7 of Slot 38, Layer 8 of Slot 44, Layer 7 of Slot 50, Layer 8 of Slot 56, Layer 7 of Slot 62, Layer 8 of Slot 68, Layer 7 of Slot 74, Layer 8 of Slot 80, Layer 7 of Slot 86, Layer 8 of Slot 91, Layer 7 of Slot 1, Layer 8 of Slot 7, Layer 7 of Slot 13, Layer 8 of Slot 19, Layer 7 of Slot 25, Layer 8 of Slot 31,It can sequentially pass through Layer 7 of Slot 37, Layer 8 of Slot 43, Layer 7 of Slot 49, Layer 8 of Slot 55, Layer 7 of Slot 61, Layer 8 of Slot 67, Layer 7 of Slot 73, Layer 8 of Slot 79, Layer 7 of Slot 85, and Layer 8 of Slot 92.
[0026] The above 1st-2 parallel coil is Layer 1 of Slot 7, Layer 2 of Slot 14, Layer 1 of Slot 20, Layer 2 of Slot 26, Layer 1 of Slot 32, Layer 2 of Slot 38, Layer 2 of Slot 44, Layer 2 of Slot 50, Layer 1 of Slot 56, Layer 2 of Slot 62, Layer 1 of Slot 68, Layer 2 of Slot 74, Layer 1 of Slot 80, Layer 2 of Slot 86, Layer 1 of Slot 92, Layer 2 of Slot 2, Layer 1 of Slot 8, Layer 2 of Slot 13, Layer 1 of Slot 19, Layer 2 of Slot 25, Layer 1 of Slot 31, and Layer 2 of Slot 37 Layer, Layer 1 of Slot 43, Layer 2 of Slot 49, Layer 1 of Slot 55, Layer 2 of Slot 61, Layer 1 of Slot 67, Layer 2 of Slot 73, Layer 1 of Slot 79, Layer 2 of Slot 85, Layer 1 of Slot 91, Layer 2 of Slot 1, Layer 3 of Slot 7, Layer 4 of Slot 14, Layer 3 of Slot 20, Layer 4 of Slot 26, Layer 3 of Slot 32, Layer 4 of Slot 38, Layer 3 of Slot 44, Layer 4 of Slot 50, Layer 3 of Slot 56, Layer 4 of Slot 62, Layer 3 of Slot 68, Layer 4 of Slot 74, 80 Layer 3 of Slot, Layer 4 of Slot 86, Layer 3 of Slot 92, Layer 4 of Slot 2, Layer 3 of Slot 8, Layer 4 of Slot 13, Layer 3 of Slot 19, Layer 4 of Slot 25, Layer 3 of Slot 31, Layer 4 of Slot 37, Layer 3 of Slot 43, Layer 4 of Slot 49, Layer 3 of Slot 55, Layer 4 of Slot 61, Layer 3 of Slot 67, Layer 4 of Slot 73, Layer 3 of Slot 79, Layer 4 of Slot 85,Layer 3 of Slot 91, Layer 4 of Slot 1, Layer 5 of Slot 7, Layer 6 of Slot 14, Layer 5 of Slot 20, Layer 6 of Slot 26, Layer 5 of Slot 32, Layer 6 of Slot 38, Layer 5 of Slot 44, Layer 6 of Slot 50, Layer 5 of Slot 56, Layer 6 of Slot 62, Layer 5 of Slot 68, Layer 6 of Slot 74, Layer 5 of Slot 80, Layer 6 of Slot 86, Layer 5 of Slot 92, Layer 6 of Slot 2, Layer 5 of Slot 8, Layer 6 of Slot 13, Layer 5 of Slot 19, Layer 6 of Slot 25, of Slot 31 Layer 5, Layer 6 of Slot 37, Layer 5 of Slot 43, Layer 6 of Slot 49, Layer 5 of Slot 55, Layer 6 of Slot 61, Layer 5 of Slot 67, Layer 6 of Slot 73, Layer 5 of Slot 79, Layer 6 of Slot 85, Layer 5 of Slot 91, Layer 6 of Slot 1, Layer 7 of Slot 7, Layer 8 of Slot 14, Layer 7 of Slot 20, Layer 8 of Slot 26, Layer 7 of Slot 32, Layer 8 of Slot 38, Layer 7 of Slot 44, Layer 8 of Slot 50, Layer 7 of Slot 56, Layer 8 of Slot 62, Layer 7 of Slot 68, Layer 8 of Slot 74, Layer 7 of Slot 80, Layer 8 of Slot 86, Layer 7 of Slot 92, Layer 8 of Slot 2, Layer 7 of Slot 8, Layer 8 of Slot 13, Layer 7 of Slot 19, Layer 8 of Slot 25, Layer 7 of Slot 31, Layer 8 of Slot 37, Layer 7 of Slot 43, Layer 8 of Slot 49, Layer 7 of Slot 55, Layer 8 of Slot 61, Layer 7 of Slot 67, Layer 8 of Slot 73, Layer 7 of Slot 79,It can sequentially pass through Layer 8 of Slot 85, Layer 7 of Slot 91, and Layer 8 of Slot 1.
[0027] The above 2-1 parallel coil is layer 1 of slot 17, layer 2 of slot 24, layer 1 of slot 30, layer 2 of slot 36, layer 1 of slot 42, layer 2 of slot 48, layer 2 of slot 54, layer 2 of slot 60, layer 1 of slot 66, layer 2 of slot 72, layer 1 of slot 78, layer 2 of slot 84, layer 1 of slot 90, layer 2 of slot 96, layer 1 of slot 6, layer 2 of slot 12, layer 1 of slot 18, layer 2 of slot 23, layer 1 of slot 29, layer 2 of slot 35, layer 1 of slot 41, and of slot 47. Layer 2, Layer 1 of Slot 53, Layer 2 of Slot 59, Layer 1 of Slot 65, Layer 2 of Slot 71, Layer 1 of Slot 77, Layer 2 of Slot 83, Layer 1 of Slot 89, Layer 2 of Slot 95, Layer 1 of Slot 5, Layer 2 of Slot 11, Layer 3 of Slot 17, Layer 4 of Slot 24, Layer 3 of Slot 30, Layer 4 of Slot 36, Layer 3 of Slot 42, Layer 4 of Slot 48, Layer 3 of Slot 54, Layer 4 of Slot 60, Layer 3 of Slot 66, Layer 4 of Slot 72, Layer 3 of Slot 78, Layer 4 of Slot 84, Layer 3 of Slot 90, Layer 4 of Slot 96, Layer 3 of Slot 6, Layer 4 of Slot 12, Layer 3 of Slot 18, Layer 4 of Slot 23, Layer 3 of Slot 29, Layer 4 of Slot 35, Layer 3 of Slot 41, Layer 4 of Slot 47, Layer 3 of Slot 53, Layer 4 of Slot 59, Layer 3 of Slot 65, Layer 4 of Slot 71, Layer 3 of Slot 77, Layer 4 of Slot 83, Layer 3 of Slot 89,Layer 4 of Slot 95, Layer 3 of Slot 5, Layer 4 of Slot 11, Layer 5 of Slot 17, Layer 6 of Slot 24, Layer 5 of Slot 30, Layer 6 of Slot 36, Layer 5 of Slot 42, Layer 6 of Slot 48, Layer 5 of Slot 54, Layer 6 of Slot 60, Layer 5 of Slot 66, Layer 6 of Slot 72, Layer 5 of Slot 78, Layer 6 of Slot 84, Layer 5 of Slot 90, Layer 6 of Slot 96, Layer 5 of Slot 6, Layer 6 of Slot 12, Layer 5 of Slot 18, Layer 6 of Slot 23, Layer 5 of Slot 29, of Slot 35 Layer 6, Layer 5 of Slot 41, Layer 6 of Slot 47, Layer 5 of Slot 53, Layer 6 of Slot 59, Layer 5 of Slot 65, Layer 6 of Slot 71, Layer 5 of Slot 77, Layer 6 of Slot 83, Layer 5 of Slot 89, Layer 6 of Slot 95, Layer 5 of Slot 5, Layer 6 of Slot 11, Layer 7 of Slot 17, Layer 8 of Slot 24, Layer 7 of Slot 30, Layer 8 of Slot 36, Layer 7 of Slot 42, Layer 8 of Slot 48, Layer 7 of Slot 54, Layer 8 of Slot 60, Layer 7 of Slot 66, Layer 8 of Slot 72, Layer 7 of Slot 78, Layer 8 of Slot 84, Layer 7 of Slot 90, Layer 8 of Slot 96, Layer 7 of Slot 6, Layer 8 of Slot 12, Layer 7 of Slot 18, Layer 8 of Slot 23, Layer 7 of Slot 29, Layer 8 of Slot 35, Layer 7 of Slot 41, Layer 8 of Slot 47, Layer 7 of Slot 53, Layer 8 of Slot 59, Layer 7 of Slot 65, Layer 8 of Slot 71, Layer 7 of Slot 77,It can sequentially pass through Layer 8 of Slot 83, Layer 7 of Slot 89, Layer 8 of Slot 95, Layer 7 of Slot 5, and Layer 8 of Slot 11.
[0028] The above 2-2 parallel coil is layer 1 of slot 12, layer 2 of slot 18, layer 1 of slot 24, layer 2 of slot 30, layer 1 of slot 36, layer 2 of slot 42, layer 1 of slot 48, layer 2 of slot 54, layer 1 of slot 60, layer 2 of slot 66, layer 1 of slot 72, layer 2 of slot 78, layer 1 of slot 84, layer 2 of slot 90, layer 1 of slot 96, layer 2 of slot 5, layer 1 of slot 11, layer 2 of slot 17, layer 1 of slot 23, layer 2 of slot 29, layer 1 of slot 35, and of slot 41. Layer 2, Layer 1 of Slot 47, Layer 2 of Slot 53, Layer 1 of Slot 59, Layer 2 of Slot 65, Layer 1 of Slot 71, Layer 2 of Slot 77, Layer 1 of Slot 83, Layer 2 of Slot 89, Layer 1 of Slot 95, Layer 2 of Slot 6, Layer 3 of Slot 12, Layer 4 of Slot 18, Layer 3 of Slot 24, Layer 4 of Slot 30, Layer 3 of Slot 36, Layer 4 of Slot 42, Layer 3 of Slot 48, Layer 4 of Slot 54, Layer 3 of Slot 60, Layer 4 of Slot 66, Layer 3 of Slot 72, Layer 4 of Slot 78, Layer 3 of Slot 84, Layer 4 of Slot 90, Layer 3 of Slot 96, Layer 4 of Slot 5, Layer 3 of Slot 11, Layer 4 of Slot 17, Layer 3 of Slot 23, Layer 4 of Slot 29, Layer 3 of Slot 35, Layer 4 of Slot 41, Layer 3 of Slot 47, Layer 4 of Slot 53, Layer 3 of Slot 59, Layer 4 of Slot 65, Layer 3 of Slot 71, Layer 4 of Slot 77, Layer 3 of Slot 83,Layer 4 of Slot 89, Layer 3 of Slot 95, Layer 4 of Slot 6, Layer 5 of Slot 12, Layer 6 of Slot 18, Layer 5 of Slot 24, Layer 6 of Slot 30, Layer 5 of Slot 36, Layer 6 of Slot 42, Layer 5 of Slot 48, Layer 6 of Slot 54, Layer 5 of Slot 60, Layer 6 of Slot 66, Layer 5 of Slot 72, Layer 6 of Slot 78, Layer 5 of Slot 84, Layer 6 of Slot 90, Layer 5 of Slot 96, Layer 6 of Slot 5, Layer 5 of Slot 11, Layer 6 of Slot 17, Layer 5 of Slot 23, and of Slot 29 Layer 6, Layer 5 of Slot 35, Layer 6 of Slot 41, Layer 5 of Slot 47, Layer 6 of Slot 53, Layer 5 of Slot 59, Layer 6 of Slot 65, Layer 5 of Slot 71, Layer 6 of Slot 77, Layer 5 of Slot 83, Layer 6 of Slot 89, Layer 5 of Slot 95, Layer 6 of Slot 6, Layer 7 of Slot 12, Layer 8 of Slot 18, Layer 7 of Slot 24, Layer 8 of Slot 30, Layer 7 of Slot 36, Layer 8 of Slot 42, Layer 7 of Slot 48, Layer 8 of Slot 54, Layer 7 of Slot 60, Layer 8 of Slot 66, Layer 7 of Slot 72, Layer 8 of Slot 78, Layer 7 of Slot 84, Layer 8 of Slot 90, Layer 7 of Slot 96, Layer 8 of Slot 5, Layer 7 of Slot 11, Layer 8 of Slot 17, Layer 7 of Slot 23, Layer 8 of Slot 29, Layer 7 of Slot 35, Layer 8 of Slot 41, Layer 7 of Slot 47, Layer 8 of Slot 53, Layer 7 of Slot 59, Layer 8 of Slot 65, Layer 7 of Slot 71,It can sequentially pass through Layer 8 of Slot 77, Layer 7 of Slot 83, Layer 8 of Slot 89, Layer 7 of Slot 95, and Layer 8 of Slot 6.
[0029] The above 3-1 parallel coil is layer 1 of slot 22, layer 2 of slot 28, layer 1 of slot 34, layer 2 of slot 40, layer 1 of slot 46, layer 2 of slot 52, layer 1 of slot 58, layer 2 of slot 64, layer 1 of slot 70, layer 2 of slot 76, layer 1 of slot 82, layer 2 of slot 88, layer 1 of slot 94, layer 2 of slot 4, layer 1 of slot 10, layer 2 of slot 15, layer 1 of slot 21, layer 2 of slot 27, layer 1 of slot 33, layer 2 of slot 39, layer 1 of slot 45, and of slot 51. Layer 2, Layer 1 of Slot 57, Layer 2 of Slot 63, Layer 1 of Slot 69, Layer 2 of Slot 75, Layer 1 of Slot 81, Layer 2 of Slot 87, Layer 1 of Slot 93, Layer 2 of Slot 3, Layer 1 of Slot 9, Layer 2 of Slot 16, Layer 3 of Slot 22, Layer 4 of Slot 28, Layer 3 of Slot 34, Layer 4 of Slot 40, Layer 3 of Slot 46, Layer 4 of Slot 52, Layer 3 of Slot 58, Layer 4 of Slot 64, Layer 3 of Slot 70, Layer 4 of Slot 76, Layer 3 of Slot 82, Layer 4 of Slot 88, Layer 3 of Slot 94, Layer 4 of Slot 4, Layer 3 of Slot 10, Layer 4 of Slot 15, Layer 3 of Slot 21, Layer 4 of Slot 27, Layer 3 of Slot 33, Layer 4 of Slot 39, Layer 3 of Slot 45, Layer 4 of Slot 51, Layer 3 of Slot 57, Layer 4 of Slot 63, Layer 3 of Slot 69, Layer 4 of Slot 75, Layer 3 of Slot 81, Layer 4 of Slot 87, Layer 3 of Slot 93,Layer 4 of Slot 3, Layer 3 of Slot 9, Layer 4 of Slot 16, Layer 5 of Slot 22, Layer 6 of Slot 28, Layer 5 of Slot 34, Layer 6 of Slot 40, Layer 5 of Slot 46, Layer 6 of Slot 52, Layer 5 of Slot 58, Layer 6 of Slot 64, Layer 5 of Slot 70, Layer 6 of Slot 76, Layer 5 of Slot 82, Layer 6 of Slot 88, Layer 5 of Slot 94, Layer 6 of Slot 4, Layer 5 of Slot 10, Layer 6 of Slot 15, Layer 5 of Slot 21, Layer 6 of Slot 27, Layer 5 of Slot 33, and of Slot 39 Layer 6, Layer 5 of Slot 45, Layer 6 of Slot 51, Layer 5 of Slot 57, Layer 6 of Slot 63, Layer 5 of Slot 69, Layer 6 of Slot 75, Layer 5 of Slot 81, Layer 6 of Slot 87, Layer 5 of Slot 93, Layer 6 of Slot 3, Layer 5 of Slot 9, Layer 6 of Slot 16, Layer 7 of Slot 22, Layer 8 of Slot 28, Layer 7 of Slot 34, Layer 8 of Slot 40, Layer 7 of Slot 46, Layer 8 of Slot 52, Layer 7 of Slot 58, Layer 8 of Slot 64, Layer 7 of Slot 70, Layer 8 of Slot 76, Layer 7 of Slot 82, Layer 8 of Slot 88, Layer 7 of Slot 94, Layer 8 of Slot 4, Layer 7 of Slot 10, Layer 8 of Slot 15, Layer 7 of Slot 21, Layer 8 of Slot 27, Layer 7 of Slot 33, Layer 8 of Slot 39, Layer 7 of Slot 45, Layer 8 of Slot 51, Layer 7 of Slot 57, Layer 8 of Slot 63, Layer 7 of Slot 69, Layer 8 of Slot 75, Layer 7 of Slot 81,It can sequentially pass through Layer 8 of Slot 87, Layer 7 of Slot 93, Layer 8 of Slot 3, Layer 7 of Slot 9, and Layer 8 of Slot 16.
[0030] The above 3-2 parallel coil is layer 1 of slot 27, layer 2 of slot 34, layer 1 of slot 40, layer 2 of slot 46, layer 1 of slot 52, layer 2 of slot 58, layer 2 of slot 64, layer 2 of slot 70, layer 1 of slot 76, layer 2 of slot 82, layer 1 of slot 88, layer 2 of slot 94, layer 1 of slot 4, layer 2 of slot 10, layer 1 of slot 16, layer 2 of slot 22, layer 1 of slot 28, layer 2 of slot 33, layer 1 of slot 39, layer 2 of slot 45, layer 1 of slot 51, and of slot 57. Layer 2, Layer 1 of Slot 63, Layer 2 of Slot 69, Layer 1 of Slot 75, Layer 2 of Slot 81, Layer 1 of Slot 87, Layer 2 of Slot 93, Layer 1 of Slot 3, Layer 2 of Slot 9, Layer 1 of Slot 15, Layer 2 of Slot 21, Layer 3 of Slot 27, Layer 4 of Slot 34, Layer 3 of Slot 40, Layer 4 of Slot 46, Layer 3 of Slot 52, Layer 4 of Slot 58, Layer 3 of Slot 64, Layer 4 of Slot 70, Layer 3 of Slot 76, Layer 4 of Slot 82, Layer 3 of Slot 88, Layer 4 of Slot 94, Layer 3 of Slot 4, Layer 4 of Slot 10, Layer 3 of Slot 16, Layer 4 of Slot 22, Layer 3 of Slot 28, Layer 4 of Slot 33, Layer 3 of Slot 39, Layer 4 of Slot 45, Layer 3 of Slot 51, Layer 4 of Slot 57, Layer 3 of Slot 63, Layer 4 of Slot 69, Layer 3 of Slot 75, Layer 4 of Slot 81, Layer 3 of Slot 87, Layer 4 of Slot 93, Layer 3 of Slot 3, Layer 4 of Slot 9,Layer 3 of Slot 15, Layer 4 of Slot 21, Layer 5 of Slot 27, Layer 6 of Slot 34, Layer 5 of Slot 40, Layer 6 of Slot 46, Layer 5 of Slot 52, Layer 6 of Slot 58, Layer 5 of Slot 64, Layer 6 of Slot 70, Layer 5 of Slot 76, Layer 6 of Slot 82, Layer 5 of Slot 88, Layer 6 of Slot 94, Layer 5 of Slot 4, Layer 6 of Slot 10, Layer 5 of Slot 16, Layer 6 of Slot 22, Layer 5 of Slot 28, Layer 6 of Slot 33, Layer 5 of Slot 39, Layer 6 of Slot 45, 51 Layer 5 of Slot, Layer 6 of Slot 57, Layer 5 of Slot 63, Layer 6 of Slot 69, Layer 5 of Slot 75, Layer 6 of Slot 81, Layer 5 of Slot 87, Layer 6 of Slot 93, Layer 5 of Slot 3, Layer 6 of Slot 9, Layer 5 of Slot 15, Layer 6 of Slot 21, Layer 7 of Slot 27, Layer 8 of Slot 34, Layer 7 of Slot 40, Layer 8 of Slot 46, Layer 7 of Slot 52, Layer 8 of Slot 58, Layer 7 of Slot 64, Layer 8 of Slot 70, Layer 7 of Slot 76, Layer 8 of Slot 82, Layer 7 of Slot 88 Layer, Layer 8 of Slot 94, Layer 7 of Slot 4, Layer 8 of Slot 10, Layer 7 of Slot 16, Layer 8 of Slot 22, Layer 7 of Slot 28, Layer 8 of Slot 33, Layer 7 of Slot 39, Layer 8 of Slot 45, Layer 7 of Slot 51, Layer 8 of Slot 57, Layer 7 of Slot 63, Layer 8 of Slot 69, Layer 7 of Slot 75, Layer 8 of Slot 81, Layer 7 of Slot 87, Layer 8 of Slot 93,It can sequentially pass through Layer 7 of Slot 3, Layer 8 of Slot 9, Layer 7 of Slot 15, and Layer 8 of Slot 21.
[0031] According to another aspect of the present invention for achieving the above objective, a motor is provided comprising: a stator assembly; and a rotor provided on one side of the stator assembly; wherein the stator assembly comprises: a stator core having a plurality of slots formed along the circumferential direction (C); a plurality of coil bundles inserted into the plurality of slots; and a bus bar electrically connected to the plurality of coil bundles; wherein each of the plurality of slots has a plurality of layers spaced apart along the radial direction (R), each of the plurality of coil bundles has a lead wire and a neutral wire, and the bus bar is joined to the lead wire or the neutral wire, and at least a portion of the bus bar is disposed within a space formed between the plurality of coil bundles in the circumferential direction (C). Effects of the invention
[0032] According to the present invention, compared to the prior art, the space required for mounting the motor can be reduced by minimizing the volume occupied by the busbar for mounting the hairpin motor.
[0033] In addition, according to the present invention, the cost and time required to manufacture a hairpin motor can be reduced by minimizing the types of hairpins required to manufacture a hairpin motor. Brief explanation of the drawing
[0034] FIG. 1 is a perspective view illustrating the structure of a stator assembly according to the present invention. FIG. 2 is a side view illustrating the structure of a stator assembly according to the present invention. FIG. 3 is an enlarged plan view illustrating the structure of a stator assembly according to the present invention. FIG. 4 is an enlarged perspective view illustrating the structure of a stator assembly according to the present invention. FIG. 5 is an enlarged perspective view illustrating the combined structure of the leg portion, joint portion, and bus bar of the stator assembly according to the present invention. FIG. 6 is an enlarged plan view illustrating the combined structure of the leg portion, joint portion, and bus bar of the stator assembly according to the present invention. FIG. 7 is a winding diagram of a first-1 parallel coil provided in a stator assembly according to the present invention. FIG. 8 is a winding diagram of the first and second parallel coils provided in the stator assembly according to the present invention. FIG. 9 is a winding diagram of a second-1 parallel coil provided in a stator assembly according to the present invention. FIG. 10 is a winding diagram of a second-2 parallel coil provided in a stator assembly according to the present invention. FIG. 11 is a winding diagram of a third-1 parallel coil provided in a stator assembly according to the present invention. FIG. 12 is a winding diagram of a third-2 parallel coil provided in a stator assembly according to the present invention. Specific details for implementing the invention
[0035] Hereinafter, a stator assembly and a motor according to the present invention will be described with reference to the drawings.
[0037] Stator assembly
[0038] FIG. 1 is a perspective view illustrating the structure of a stator assembly according to the present invention, and FIG. 2 is a side view illustrating the structure of a stator assembly according to the present invention. FIG. 3 is an enlarged plan view illustrating the structure of a stator assembly according to the present invention, and FIG. 4 is an enlarged perspective view illustrating the structure of a stator assembly according to the present invention. In addition, FIG. 5 is an enlarged perspective view illustrating the combined structure of a leg portion, a joint portion, and a busbar of a stator assembly according to the present invention, and FIG. 6 is an enlarged plan view illustrating the combined structure of a leg portion, a joint portion, and a busbar of a stator assembly according to the present invention.
[0039] Meanwhile, FIG. 7 is a winding diagram of a first-1 parallel coil provided in a stator assembly according to the present invention, and FIG. 8 is a winding diagram of a first-2 parallel coil provided in a stator assembly according to the present invention. FIG. 9 is a winding diagram of a second-1 parallel coil provided in a stator assembly according to the present invention, and FIG. 10 is a winding diagram of a second-2 parallel coil provided in a stator assembly according to the present invention. In addition, FIG. 11 is a winding diagram of a third-1 parallel coil provided in a stator assembly according to the present invention, and FIG. 12 is a winding diagram of a third-2 parallel coil provided in a stator assembly according to the present invention.
[0041] Referring to FIGS. 1 to 6, the stator assembly (10) according to the present invention may be a stator assembly provided in a hairpin motor.
[0042] More specifically, the stator assembly (10) may include a stator core (100) having a plurality of slots formed along the circumferential direction (C) and a plurality of coil bundles (200) inserted into the plurality of slots. The coil bundles (200) may have a structure in which a plurality of hairpins are connected.
[0043] Additionally, the stator assembly (10) may further include a bus bar (300) electrically connected to a plurality of coil bundles (200). Through the bus bar (300), current can be supplied to the plurality of coil bundles (200), and the plurality of coil bundles (200) can be electrically connected to each other at a neutral point. For example, three-phase alternating current can be supplied to the coil bundles (200).
[0044] Meanwhile, according to the present invention, a plurality of layers may be formed in the slot provided in the stator core (100). A plurality of coil bundles may be inserted into each layer. Additionally, a lead wire (202) and a neutral wire (204) may be provided in each of the plurality of coil bundles (200). Accordingly, according to the present invention, current may be supplied to the plurality of bundles (200) through the lead wire (202), and the plurality of coil bundles may be electrically connected to each other at the neutral point through the neutral wire (204). More specifically, a busbar (300) may be joined to the lead wire (202) and the neutral wire (204).
[0046] Meanwhile, referring to FIGS. 1 to 6, at least a portion of the busbar (300) in the stator assembly (10) according to the present invention may be disposed within a space formed between a plurality of coil bundles (200) in the circumferential direction (C) of the stator assembly.
[0047] More specifically, a plurality of coil bundles (200) may each include a crown portion (206) provided at one end of the axial direction (A) which is perpendicular to the circumferential direction (C) and the radial direction (R) of the stator assembly, and a leg portion (208) provided at the other end opposite the axial direction (A) and protruding in the axial direction (A). The leg portion (208) may be an area where a plurality of hairpins are joined together.
[0048] At this time, at least a portion of the busbar (300) may be placed within the space formed between two adjacent leg portions (208) in the circumferential direction (C). That is, according to the present invention, since a portion of the busbar may be placed in the empty space formed between a plurality of coil bundles (200), the space required to mount a stator assembly or motor including the busbar can be minimized.
[0050] Meanwhile, a plurality of coil bundles (200) provided in the stator assembly according to the present invention may receive a three-phase alternating current. Accordingly, the plurality of coil bundles (200) may include a first coil bundle receiving a U-phase current among the aforementioned three-phase alternating currents, a second coil bundle receiving a V-phase current, and a third coil bundle receiving a W-phase current.
[0051] At this time, the busbar (300) may include a first busbar (310) connected to the lead wire (202) of the first coil bundle and supplying a U-phase current to the first coil bundle, a second busbar (320) connected to the lead wire (202) of the second coil bundle and supplying a V-phase current to the second coil bundle, a third busbar (330) connected to the lead wire (202) of the third coil bundle and supplying a W-phase current to the third coil bundle, and a fourth busbar (340) connected to the neutral wire (204) of the first to third coil bundles.
[0052] Meanwhile, according to the present invention, the first to third coil bundles may each include a plurality of parallel coils electrically connected in parallel with each other.
[0053] More specifically, the first coil bundle may include a first-1 parallel coil (211) and a first-2 parallel coil (212), the second coil bundle may include a second-1 parallel coil (221) and a second-2 parallel coil (222), and the third coil bundle may include a third-1 parallel coil (231) and a third-2 parallel coil (232).
[0055] Meanwhile, as described above, the busbar can be joined to the coil bundle. Accordingly, the stator assembly (10) according to the present invention may include a joint formed by joining the busbar and the coil bundle.
[0056] More specifically, as illustrated in FIG. 3, the stator assembly (10) comprises a first U-phase joint (411) formed by joining the lead wire of a first-1 parallel coil (211) and a first busbar (310), a second U-phase joint (412) formed by joining the lead wire of a first-2 parallel coil (212) and a first busbar (310), a first V-phase joint (421) formed by joining the lead wire of a second-1 parallel coil (221) and a second busbar (320), a second V-phase joint (422) formed by joining the lead wire of a second-2 parallel coil (222) and a second busbar (320), a first W-phase joint (431) formed by joining the lead wire of a third-1 parallel coil (231) and a third busbar (330), and a third busbar formed by joining the lead wire of a third-2 parallel coil (232). It may include a second W-phase joint (432) formed by joining.
[0057] More specifically, as illustrated in FIG. 3, the first U-phase joint (411) may be provided at one end of the radial direction (R) of the leg portion provided in the first-1 parallel coil (211), and the second U-phase joint (412) may be provided at the other end of the radial direction (R) of the leg portion provided in the first-2 parallel coil (212). Additionally, the first V-phase joint (421) may be provided at the other end of the radial direction (R) of the leg portion provided in the second-1 parallel coil (221), and the second V-phase joint (422) may be provided at one end of the radial direction (R) of the leg portion provided in the second-2 parallel coil (222). Additionally, the first W-phase joint (431) may be provided at one end of the radial direction (R) of the leg portion provided in the third-1 parallel coil (231), and the second W-phase joint (432) may be provided at the other end of the radial direction (R) of the leg portion provided in the third-2 parallel coil (232).
[0059] Referring further to FIG. 3, the stator assembly (10) according to the present invention comprises a first-1 neutral junction (441) formed by joining the neutral wire of a first-1 parallel coil (211) and a fourth busbar (340), a first-2 neutral junction (442) formed by joining the neutral wire of a first-2 parallel coil (212) and a fourth busbar (340), a second-1 neutral junction (451) formed by joining the neutral wire of a second-1 parallel coil (221) and a fourth busbar (340), a second-2 neutral junction (452) formed by joining the neutral wire of a second-2 parallel coil (222) and a fourth busbar (340), a third-1 neutral junction (461) formed by joining the neutral wire of a third-1 parallel coil (231) and a fourth busbar (340), and a third-2 parallel It may further include a third-2 neutral junction (462) formed by joining the neutral wire of the coil (232) and the fourth bus bar (340).
[0060] More specifically, as illustrated in FIG. 3, the first neutral joint (441) may be provided at the other end in the radial direction (R) of the leg portion where the first U-shaped joint (411) is provided among the plurality of leg portions provided in the first parallel coil (211), and the first neutral joint (442) may be provided at the one end in the radial direction (R) of the leg portion where the second U-shaped joint (412) is provided among the plurality of leg portions provided in the first parallel coil (212). Additionally, the 2-1 neutral joint (451) may be provided at one end in the radial direction (R) of the leg portion where the 1 V-phase joint (421) is provided among the plurality of leg portions provided in the 2-1 parallel coil (221), and the 2-2 neutral joint (452) may be provided at the other end in the radial direction (R) of the leg portion where the 2 V-phase joint (422) is provided among the plurality of leg portions provided in the 2-2 parallel coil (222). Additionally, the 3-1 neutral joint (461) may be provided at the other end in the radial direction (R) of the leg portion where the 1st W-phase joint (431) is provided among the plurality of leg portions provided in the 3-1 parallel coil (231), and the 3-2 neutral joint (462) may be provided at the one end in the radial direction (R) of the leg portion where the 2nd W-phase joint (432) is provided among the plurality of leg portions provided in the 3-2 parallel coil (232).
[0062] Meanwhile, as illustrated in FIG. 4, the bus bar (300) may include a plurality of extension sections. More specifically, the bus bar (300) may include a first extension section (301) extending along the axial direction (A) of the stator assembly from an area joined to the leg portion, a second extension section (302) bent and extended from the first extension section (301) and extended along the radial direction (R), a third extension section (303) bent and extended from the second extension section (302) and extended along the circumferential direction (C), and a fourth extension section (304) bent and extended from the third extension section (303) and extended along the axial direction (A). The first to fourth extension sections (301, 302, 303, 304) may all be applied to the first to fourth bus bars (310, 320, 330, 340).
[0063] More specifically, referring to FIGS. 3 and 4, the third extension section (303) provided in the fourth busbar (340) may be provided closer to the stator core (100) than the third extension section (303) provided in each of the first to third busbars (310, 320, 330).
[0064] Additionally, the third extension section (303) provided in the third busbar (330) may be provided radially (R) outwardly from the third extension section (303) provided in the first busbar (310), and the third extension section (303) provided in the second busbar (320) may be provided radially (R) inwardly from the third extension section (303) provided in the second busbar (320).
[0065] Additionally, the first to third extension sections (301, 302, 303) provided in the first to fourth busbars (310, 320, 330, 340) may be provided within a plurality of coil bundles (200) in the axial direction (A). On the other hand, at least some of the fourth extension sections (304) provided in the first to fourth busbars (310, 320, 330, 340) may be provided within a plurality of coil bundles (200) in the axial direction (A).
[0067] Meanwhile, the stator core (100) provided in the stator assembly (10) according to the present invention may have 96 slots along the circumferential direction (C), and each slot may have 8 layers along the radial direction (R).
[0068] At this time, according to the present invention, when 96 slots are each named slots 1 through 96 along the circumferential direction (C) and layers 1 through 8 along the radial direction (R) of the slots, when 96 slots are each named slots 1 through 96 along the circumferential direction (C) and layers 1 through 8 along the radial direction (R) of the slots, the 1-1 parallel coil (211), 1-2 parallel coil (212), 2-1 parallel coil (221), 2-2 parallel coil (222), 3-1 parallel coil (231), and 3-2 parallel coil (232) can each be inserted into the slots in combinations of 5 slot pitch, 6 slot pitch, and 7 slot pitch.
[0069] More specifically, according to the present invention, the first-1 parallel coil (211), the first-2 parallel coil (212), the second-1 parallel coil (221), the second-2 parallel coil (222), the third-1 parallel coil (231) and the third-2 parallel coil (232) can each be inserted into a slot to have an average slot pitch of 6 slots.
[0070] For example, referring to FIGS. 7 to 12, the first-1 parallel coil (211) comprises layer 1 of slot 2, layer 2 of slot 8, layer 1 of slot 14, layer 2 of slot 20, layer 1 of slot 26, layer 2 of slot 32, layer 1 of slot 38, layer 2 of slot 44, layer 1 of slot 50, layer 2 of slot 56, layer 1 of slot 62, layer 2 of slot 68, layer 1 of slot 74, layer 2 of slot 80, layer 1 of slot 86, layer 2 of slot 91, layer 1 of slot 1, layer 2 of slot 7, layer 1 of slot 13, layer 2 of slot 19, Layer 1 of Slot 25, Layer 2 of Slot 31, Layer 1 of Slot 37, Layer 2 of Slot 43, Layer 1 of Slot 49, Layer 2 of Slot 55, Layer 1 of Slot 61, Layer 2 of Slot 67, Layer 1 of Slot 73, Layer 2 of Slot 79, Layer 1 of Slot 85, Layer 2 of Slot 92, Layer 3 of Slot 2, Layer 4 of Slot 8, Layer 3 of Slot 14, Layer 4 of Slot 20, Layer 3 of Slot 26, Layer 4 of Slot 32, Layer 3 of Slot 38, Layer 4 of Slot 44, Layer 3 of Slot 50, Layer 4 of Slot 56, of Slot 62 Layer 3, Layer 4 of Slot 68, Layer 3 of Slot 74, Layer 4 of Slot 80, Layer 3 of Slot 86, Layer 4 of Slot 91, Layer 3 of Slot 1, Layer 4 of Slot 7, Layer 3 of Slot 13, Layer 4 of Slot 19, Layer 3 of Slot 25, Layer 4 of Slot 31, Layer 3 of Slot 37, Layer 4 of Slot 43, Layer 3 of Slot 49, Layer 4 of Slot 55, Layer 3 of Slot 61, Layer 4 of Slot 67,Layer 3 of Slot 73, Layer 4 of Slot 79, Layer 3 of Slot 85, Layer 4 of Slot 92, Layer 5 of Slot 2, Layer 6 of Slot 8, Layer 5 of Slot 14, Layer 6 of Slot 20, Layer 5 of Slot 26, Layer 6 of Slot 32, Layer 5 of Slot 38, Layer 6 of Slot 44, Layer 5 of Slot 50, Layer 6 of Slot 56, Layer 5 of Slot 62, Layer 6 of Slot 68, Layer 5 of Slot 74, Layer 6 of Slot 80, Layer 5 of Slot 86, Layer 6 of Slot 91, Layer 5 of Slot 1, Layer 6 of Slot 7, and of Slot 13 Layer 5, Layer 6 of Slot 19, Layer 5 of Slot 25, Layer 6 of Slot 31, Layer 5 of Slot 37, Layer 6 of Slot 43, Layer 5 of Slot 49, Layer 6 of Slot 55, Layer 5 of Slot 61, Layer 6 of Slot 67, Layer 5 of Slot 73, Layer 6 of Slot 79, Layer 5 of Slot 85, Layer 6 of Slot 92, Layer 7 of Slot 2, Layer 8 of Slot 8, Layer 7 of Slot 14, Layer 8 of Slot 20, Layer 7 of Slot 26, Layer 8 of Slot 32, Layer 7 of Slot 38, Layer 8 of Slot 44, Layer 7 of Slot 50, Layer 8 of Slot 56, Layer 7 of Slot 62, Layer 8 of Slot 68, Layer 7 of Slot 74, Layer 8 of Slot 80, Layer 7 of Slot 86, Layer 8 of Slot 91, Layer 7 of Slot 1, Layer 8 of Slot 7, Layer 7 of Slot 13, Layer 8 of Slot 19, Layer 7 of Slot 25, Layer 8 of Slot 31, Layer 7 of Slot 37, Layer 8 of Slot 43, Layer 7 of Slot 49, Layer 8 of Slot 55, Layer 7 of Slot 61,You can sequentially pass through Layer 8 of Slot 67, Layer 7 of Slot 73, Layer 8 of Slot 79, Layer 7 of Slot 85, and Layer 8 of Slot 92.
[0072] Additionally, the first-second parallel coil (212) is layer 1 of slot 7, layer 2 of slot 14, layer 1 of slot 20, layer 2 of slot 26, layer 1 of slot 32, layer 2 of slot 38, layer 2 of slot 44, layer 2 of slot 50, layer 1 of slot 56, layer 2 of slot 62, layer 1 of slot 68, layer 2 of slot 74, layer 1 of slot 80, layer 2 of slot 86, layer 1 of slot 92, layer 2 of slot 2, layer 1 of slot 8, layer 2 of slot 13, layer 1 of slot 19, layer 2 of slot 25, layer 1 of slot 31, and 37 Layer 2 of Slot, Layer 1 of Slot 43, Layer 2 of Slot 49, Layer 1 of Slot 55, Layer 2 of Slot 61, Layer 1 of Slot 67, Layer 2 of Slot 73, Layer 1 of Slot 79, Layer 2 of Slot 85, Layer 1 of Slot 91, Layer 2 of Slot 1, Layer 3 of Slot 7, Layer 4 of Slot 14, Layer 3 of Slot 20, Layer 4 of Slot 26, Layer 3 of Slot 32, Layer 4 of Slot 38, Layer 3 of Slot 44, Layer 4 of Slot 50, Layer 3 of Slot 56, Layer 4 of Slot 62, Layer 3 of Slot 68, Layer 4 of Slot 74 Layer, Layer 3 of Slot 80, Layer 4 of Slot 86, Layer 3 of Slot 92, Layer 4 of Slot 2, Layer 3 of Slot 8, Layer 4 of Slot 13, Layer 3 of Slot 19, Layer 4 of Slot 25, Layer 3 of Slot 31, Layer 4 of Slot 37, Layer 3 of Slot 43, Layer 4 of Slot 49, Layer 3 of Slot 55, Layer 4 of Slot 61, Layer 3 of Slot 67, Layer 4 of Slot 73, Layer 3 of Slot 79,Layer 4 of Slot 85, Layer 3 of Slot 91, Layer 4 of Slot 1, Layer 5 of Slot 7, Layer 6 of Slot 14, Layer 5 of Slot 20, Layer 6 of Slot 26, Layer 5 of Slot 32, Layer 6 of Slot 38, Layer 5 of Slot 44, Layer 6 of Slot 50, Layer 5 of Slot 56, Layer 6 of Slot 62, Layer 5 of Slot 68, Layer 6 of Slot 74, Layer 5 of Slot 80, Layer 6 of Slot 86, Layer 5 of Slot 92, Layer 6 of Slot 2, Layer 5 of Slot 8, Layer 6 of Slot 13, Layer 5 of Slot 19, of Slot 25 Layer 6, Layer 5 of Slot 31, Layer 6 of Slot 37, Layer 5 of Slot 43, Layer 6 of Slot 49, Layer 5 of Slot 55, Layer 6 of Slot 61, Layer 5 of Slot 67, Layer 6 of Slot 73, Layer 5 of Slot 79, Layer 6 of Slot 85, Layer 5 of Slot 91, Layer 6 of Slot 1, Layer 7 of Slot 7, Layer 8 of Slot 14, Layer 7 of Slot 20, Layer 8 of Slot 26, Layer 7 of Slot 32, Layer 8 of Slot 38, Layer 7 of Slot 44, Layer 8 of Slot 50, Layer 7 of Slot 56, Layer 8 of Slot 62, Layer 7 of Slot 68, Layer 8 of Slot 74, Layer 7 of Slot 80, Layer 8 of Slot 86, Layer 7 of Slot 92, Layer 8 of Slot 2, Layer 7 of Slot 8, Layer 8 of Slot 13, Layer 7 of Slot 19, Layer 8 of Slot 25, Layer 7 of Slot 31, Layer 8 of Slot 37, Layer 7 of Slot 43, Layer 8 of Slot 49, Layer 7 of Slot 55, Layer 8 of Slot 61, Layer 7 of Slot 67, Layer 8 of Slot 73,It can sequentially pass through Layer 7 of Slot 79, Layer 8 of Slot 85, Layer 7 of Slot 91, and Layer 8 of Slot 1.
[0074] Additionally, the 2-1 parallel coil (221) is layer 1 of slot 17, layer 2 of slot 24, layer 1 of slot 30, layer 2 of slot 36, layer 1 of slot 42, layer 2 of slot 48, layer 2 of slot 54, layer 2 of slot 60, layer 1 of slot 66, layer 2 of slot 72, layer 1 of slot 78, layer 2 of slot 84, layer 1 of slot 90, layer 2 of slot 96, layer 1 of slot 6, layer 2 of slot 12, layer 1 of slot 18, layer 2 of slot 23, layer 1 of slot 29, layer 2 of slot 35, layer 1 of slot 41, Layer 2 of Slot 47, Layer 1 of Slot 53, Layer 2 of Slot 59, Layer 1 of Slot 65, Layer 2 of Slot 71, Layer 1 of Slot 77, Layer 2 of Slot 83, Layer 1 of Slot 89, Layer 2 of Slot 95, Layer 1 of Slot 5, Layer 2 of Slot 11, Layer 3 of Slot 17, Layer 4 of Slot 24, Layer 3 of Slot 30, Layer 4 of Slot 36, Layer 3 of Slot 42, Layer 4 of Slot 48, Layer 3 of Slot 54, Layer 4 of Slot 60, Layer 3 of Slot 66, Layer 4 of Slot 72, Layer 3 of Slot 78, 84 Layer 4 of Slot, Layer 3 of Slot 90, Layer 4 of Slot 96, Layer 3 of Slot 6, Layer 4 of Slot 12, Layer 3 of Slot 18, Layer 4 of Slot 23, Layer 3 of Slot 29, Layer 4 of Slot 35, Layer 3 of Slot 41, Layer 4 of Slot 47, Layer 3 of Slot 53, Layer 4 of Slot 59, Layer 3 of Slot 65, Layer 4 of Slot 71, Layer 3 of Slot 77, Layer 4 of Slot 83, Layer 3 of Slot 89,Layer 4 of Slot 95, Layer 3 of Slot 5, Layer 4 of Slot 11, Layer 5 of Slot 17, Layer 6 of Slot 24, Layer 5 of Slot 30, Layer 6 of Slot 36, Layer 5 of Slot 42, Layer 6 of Slot 48, Layer 5 of Slot 54, Layer 6 of Slot 60, Layer 5 of Slot 66, Layer 6 of Slot 72, Layer 5 of Slot 78, Layer 6 of Slot 84, Layer 5 of Slot 90, Layer 6 of Slot 96, Layer 5 of Slot 6, Layer 6 of Slot 12, Layer 5 of Slot 18, Layer 6 of Slot 23, Layer 5 of Slot 29, of Slot 35 Layer 6, Layer 5 of Slot 41, Layer 6 of Slot 47, Layer 5 of Slot 53, Layer 6 of Slot 59, Layer 5 of Slot 65, Layer 6 of Slot 71, Layer 5 of Slot 77, Layer 6 of Slot 83, Layer 5 of Slot 89, Layer 6 of Slot 95, Layer 5 of Slot 5, Layer 6 of Slot 11, Layer 7 of Slot 17, Layer 8 of Slot 24, Layer 7 of Slot 30, Layer 8 of Slot 36, Layer 7 of Slot 42, Layer 8 of Slot 48, Layer 7 of Slot 54, Layer 8 of Slot 60, Layer 7 of Slot 66, Layer 8 of Slot 72, Layer 7 of Slot 78, Layer 8 of Slot 84, Layer 7 of Slot 90, Layer 8 of Slot 96, Layer 7 of Slot 6, Layer 8 of Slot 12, Layer 7 of Slot 18, Layer 8 of Slot 23, Layer 7 of Slot 29, Layer 8 of Slot 35, Layer 7 of Slot 41, Layer 8 of Slot 47, Layer 7 of Slot 53, Layer 8 of Slot 59, Layer 7 of Slot 65, Layer 8 of Slot 71, Layer 7 of Slot 77,It can sequentially pass through Layer 8 of Slot 83, Layer 7 of Slot 89, Layer 8 of Slot 95, Layer 7 of Slot 5, and Layer 8 of Slot 11.
[0076] The 2-2 parallel coil (222) is layer 1 of slot 12, layer 2 of slot 18, layer 1 of slot 24, layer 2 of slot 30, layer 1 of slot 36, layer 2 of slot 42, layer 1 of slot 48, layer 2 of slot 54, layer 1 of slot 60, layer 2 of slot 66, layer 1 of slot 72, layer 2 of slot 78, layer 1 of slot 84, layer 2 of slot 90, layer 1 of slot 96, layer 2 of slot 5, layer 1 of slot 11, layer 2 of slot 17, layer 1 of slot 23, layer 2 of slot 29, layer 1 of slot 35, and 41. Layer 2 of Slot, Layer 1 of Slot 47, Layer 2 of Slot 53, Layer 1 of Slot 59, Layer 2 of Slot 65, Layer 1 of Slot 71, Layer 2 of Slot 77, Layer 1 of Slot 83, Layer 2 of Slot 89, Layer 1 of Slot 95, Layer 2 of Slot 6, Layer 3 of Slot 12, Layer 4 of Slot 18, Layer 3 of Slot 24, Layer 4 of Slot 30, Layer 3 of Slot 36, Layer 4 of Slot 42, Layer 3 of Slot 48, Layer 4 of Slot 54, Layer 3 of Slot 60, Layer 4 of Slot 66, Layer 3 of Slot 72, Layer 4 of Slot 78 Layer, Layer 3 of Slot 84, Layer 4 of Slot 90, Layer 3 of Slot 96, Layer 4 of Slot 5, Layer 3 of Slot 11, Layer 4 of Slot 17, Layer 3 of Slot 23, Layer 4 of Slot 29, Layer 3 of Slot 35, Layer 4 of Slot 41, Layer 3 of Slot 47, Layer 4 of Slot 53, Layer 3 of Slot 59, Layer 4 of Slot 65, Layer 3 of Slot 71, Layer 4 of Slot 77, Layer 3 of Slot 83,Layer 4 of Slot 89, Layer 3 of Slot 95, Layer 4 of Slot 6, Layer 5 of Slot 12, Layer 6 of Slot 18, Layer 5 of Slot 24, Layer 6 of Slot 30, Layer 5 of Slot 36, Layer 6 of Slot 42, Layer 5 of Slot 48, Layer 6 of Slot 54, Layer 5 of Slot 60, Layer 6 of Slot 66, Layer 5 of Slot 72, Layer 6 of Slot 78, Layer 5 of Slot 84, Layer 6 of Slot 90, Layer 5 of Slot 96, Layer 6 of Slot 5, Layer 5 of Slot 11, Layer 6 of Slot 17, Layer 5 of Slot 23, and of Slot 29 Layer 6, Layer 5 of Slot 35, Layer 6 of Slot 41, Layer 5 of Slot 47, Layer 6 of Slot 53, Layer 5 of Slot 59, Layer 6 of Slot 65, Layer 5 of Slot 71, Layer 6 of Slot 77, Layer 5 of Slot 83, Layer 6 of Slot 89, Layer 5 of Slot 95, Layer 6 of Slot 6, Layer 7 of Slot 12, Layer 8 of Slot 18, Layer 7 of Slot 24, Layer 8 of Slot 30, Layer 7 of Slot 36, Layer 8 of Slot 42, Layer 7 of Slot 48, Layer 8 of Slot 54, Layer 7 of Slot 60, Layer 8 of Slot 66, Layer 7 of Slot 72, Layer 8 of Slot 78, Layer 7 of Slot 84, Layer 8 of Slot 90, Layer 7 of Slot 96, Layer 8 of Slot 5, Layer 7 of Slot 11, Layer 8 of Slot 17, Layer 7 of Slot 23, Layer 8 of Slot 29, Layer 7 of Slot 35, Layer 8 of Slot 41, Layer 7 of Slot 47, Layer 8 of Slot 53, Layer 7 of Slot 59, Layer 8 of Slot 65, Layer 7 of Slot 71,It can sequentially pass through Layer 8 of Slot 77, Layer 7 of Slot 83, Layer 8 of Slot 89, Layer 7 of Slot 95, and Layer 8 of Slot 6.
[0078] Additionally, the 3-1 parallel coil (231) is layer 1 of slot 22, layer 2 of slot 28, layer 1 of slot 34, layer 2 of slot 40, layer 1 of slot 46, layer 2 of slot 52, layer 1 of slot 58, layer 2 of slot 64, layer 1 of slot 70, layer 2 of slot 76, layer 1 of slot 82, layer 2 of slot 88, layer 1 of slot 94, layer 2 of slot 4, layer 1 of slot 10, layer 2 of slot 15, layer 1 of slot 21, layer 2 of slot 27, layer 1 of slot 33, layer 2 of slot 39, layer 1 of slot 45, Layer 2 of Slot 51, Layer 1 of Slot 57, Layer 2 of Slot 63, Layer 1 of Slot 69, Layer 2 of Slot 75, Layer 1 of Slot 81, Layer 2 of Slot 87, Layer 1 of Slot 93, Layer 2 of Slot 3, Layer 1 of Slot 9, Layer 2 of Slot 16, Layer 3 of Slot 22, Layer 4 of Slot 28, Layer 3 of Slot 34, Layer 4 of Slot 40, Layer 3 of Slot 46, Layer 4 of Slot 52, Layer 3 of Slot 58, Layer 4 of Slot 64, Layer 3 of Slot 70, Layer 4 of Slot 76, Layer 3 of Slot 82, Layer 3 of Slot 88 Layer 4, Layer 3 of Slot 94, Layer 4 of Slot 4, Layer 3 of Slot 10, Layer 4 of Slot 15, Layer 3 of Slot 21, Layer 4 of Slot 27, Layer 3 of Slot 33, Layer 4 of Slot 39, Layer 3 of Slot 45, Layer 4 of Slot 51, Layer 3 of Slot 57, Layer 4 of Slot 63, Layer 3 of Slot 69, Layer 4 of Slot 75, Layer 3 of Slot 81, Layer 4 of Slot 87, Layer 3 of Slot 93,Layer 4 of Slot 3, Layer 3 of Slot 9, Layer 4 of Slot 16, Layer 5 of Slot 22, Layer 6 of Slot 28, Layer 5 of Slot 34, Layer 6 of Slot 40, Layer 5 of Slot 46, Layer 6 of Slot 52, Layer 5 of Slot 58, Layer 6 of Slot 64, Layer 5 of Slot 70, Layer 6 of Slot 76, Layer 5 of Slot 82, Layer 6 of Slot 88, Layer 5 of Slot 94, Layer 6 of Slot 4, Layer 5 of Slot 10, Layer 6 of Slot 15, Layer 5 of Slot 21, Layer 6 of Slot 27, Layer 5 of Slot 33, and of Slot 39 Layer 6, Layer 5 of Slot 45, Layer 6 of Slot 51, Layer 5 of Slot 57, Layer 6 of Slot 63, Layer 5 of Slot 69, Layer 6 of Slot 75, Layer 5 of Slot 81, Layer 6 of Slot 87, Layer 5 of Slot 93, Layer 6 of Slot 3, Layer 5 of Slot 9, Layer 6 of Slot 16, Layer 7 of Slot 22, Layer 8 of Slot 28, Layer 7 of Slot 34, Layer 8 of Slot 40, Layer 7 of Slot 46, Layer 8 of Slot 52, Layer 7 of Slot 58, Layer 8 of Slot 64, Layer 7 of Slot 70, Layer 8 of Slot 76, Layer 7 of Slot 82, Layer 8 of Slot 88, Layer 7 of Slot 94, Layer 8 of Slot 4, Layer 7 of Slot 10, Layer 8 of Slot 15, Layer 7 of Slot 21, Layer 8 of Slot 27, Layer 7 of Slot 33, Layer 8 of Slot 39, Layer 7 of Slot 45, Layer 8 of Slot 51, Layer 7 of Slot 57, Layer 8 of Slot 63, Layer 7 of Slot 69, Layer 8 of Slot 75, Layer 7 of Slot 81,It can sequentially pass through Layer 8 of Slot 87, Layer 7 of Slot 93, Layer 8 of Slot 3, Layer 7 of Slot 9, and Layer 8 of Slot 16.
[0080] Additionally, the 3-2 parallel coil (232) is layer 1 of slot 27, layer 2 of slot 34, layer 1 of slot 40, layer 2 of slot 46, layer 1 of slot 52, layer 2 of slot 58, layer 2 of slot 64, layer 2 of slot 70, layer 1 of slot 76, layer 2 of slot 82, layer 1 of slot 88, layer 2 of slot 94, layer 1 of slot 4, layer 2 of slot 10, layer 1 of slot 16, layer 2 of slot 22, layer 1 of slot 28, layer 2 of slot 33, layer 1 of slot 39, layer 2 of slot 45, layer 1 of slot 51, Layer 2 of Slot 57, Layer 1 of Slot 63, Layer 2 of Slot 69, Layer 1 of Slot 75, Layer 2 of Slot 81, Layer 1 of Slot 87, Layer 2 of Slot 93, Layer 1 of Slot 3, Layer 2 of Slot 9, Layer 1 of Slot 15, Layer 2 of Slot 21, Layer 3 of Slot 27, Layer 4 of Slot 34, Layer 3 of Slot 40, Layer 4 of Slot 46, Layer 3 of Slot 52, Layer 4 of Slot 58, Layer 3 of Slot 64, Layer 4 of Slot 70, Layer 3 of Slot 76, Layer 4 of Slot 82, Layer 3 of Slot 88, and of Slot 94 Layer 4, Layer 3 of Slot 4, Layer 4 of Slot 10, Layer 3 of Slot 16, Layer 4 of Slot 22, Layer 3 of Slot 28, Layer 4 of Slot 33, Layer 3 of Slot 39, Layer 4 of Slot 45, Layer 3 of Slot 51, Layer 4 of Slot 57, Layer 3 of Slot 63, Layer 4 of Slot 69, Layer 3 of Slot 75, Layer 4 of Slot 81, Layer 3 of Slot 87, Layer 4 of Slot 93, Layer 3 of Slot 3,Layer 4 of Slot 9, Layer 3 of Slot 15, Layer 4 of Slot 21, Layer 5 of Slot 27, Layer 6 of Slot 34, Layer 5 of Slot 40, Layer 6 of Slot 46, Layer 5 of Slot 52, Layer 6 of Slot 58, Layer 5 of Slot 64, Layer 6 of Slot 70, Layer 5 of Slot 76, Layer 6 of Slot 82, Layer 5 of Slot 88, Layer 6 of Slot 94, Layer 5 of Slot 4, Layer 6 of Slot 10, Layer 5 of Slot 16, Layer 6 of Slot 22, Layer 5 of Slot 28, Layer 6 of Slot 33, Layer 5 of Slot 39, of Slot 45 Layer 6, Layer 5 of Slot 51, Layer 6 of Slot 57, Layer 5 of Slot 63, Layer 6 of Slot 69, Layer 5 of Slot 75, Layer 6 of Slot 81, Layer 5 of Slot 87, Layer 6 of Slot 93, Layer 5 of Slot 3, Layer 6 of Slot 9, Layer 5 of Slot 15, Layer 6 of Slot 21, Layer 7 of Slot 27, Layer 8 of Slot 34, Layer 7 of Slot 40, Layer 8 of Slot 46, Layer 7 of Slot 52, Layer 8 of Slot 58, Layer 7 of Slot 64, Layer 8 of Slot 70, Layer 7 of Slot 76, Layer 8 of Slot 82, Layer 7 of Slot 88, Layer 8 of Slot 94, Layer 7 of Slot 4, Layer 8 of Slot 10, Layer 7 of Slot 16, Layer 8 of Slot 22, Layer 7 of Slot 28, Layer 8 of Slot 33, Layer 7 of Slot 39, Layer 8 of Slot 45, Layer 7 of Slot 51, Layer 8 of Slot 57, Layer 7 of Slot 63, Layer 8 of Slot 69, Layer 7 of Slot 75, Layer 8 of Slot 81, Layer 7 of Slot 87,You can sequentially pass through Layer 8 of Slot 93, Layer 7 of Slot 3, Layer 8 of Slot 9, Layer 7 of Slot 15, and Layer 8 of Slot 21.
[0082] When parallel coils provided in the stator assembly according to the present invention are wound as described above, the coils provided in the stator assembly can be wound using only three types of hairpins, and the size of the bus bar can be reduced in the circumferential direction (C), so the size of the stator assembly can also be reduced.
[0084] motor
[0085] The motor according to the present invention may be a hairpin motor.
[0086] More specifically, the motor may include a stator assembly (10) and a rotor provided on one side of the stator assembly (10). Additionally, the stator assembly (10) may include a stator core (100) having a plurality of slots formed along the circumferential direction (C), a plurality of coil bundles (200) inserted into the plurality of slots, and a bus bar (300) electrically connected to the plurality of coil bundles (200). Additionally, a plurality of layers spaced apart along the radial direction (R) may be formed in each of the plurality of slots, and a lead wire (202) and a neutral wire (204) may be provided in each of the plurality of coil bundles (200).
[0087] Additionally, the busbar (300) is joined to the lead wire (202) or neutral wire (204), and at least some portion of the busbar (300) may be placed within the space formed between the plurality of coil bundles (200) in the circumferential direction (C).
[0088] Meanwhile, the above descriptions regarding the stator assembly according to the present invention may be equally applied to the motor according to the present invention.
[0090] Although the present invention has been described above with reference to limited embodiments and drawings, the present invention is not limited thereto, and it is obvious that various implementations are possible within the scope of the technical spirit of the present invention and the equivalent scope of the claims described below by those skilled in the art to which the present invention belongs. Explanation of the symbols
[0092] 10: Stator Assembly 100 : Stator core 200 : Coil bundle 202 : Lead line 204 : Neutral line 206 : Crown Division 208 : Legs 211 : 1-1 Parallel Coil 212: 1st-2nd Parallel Coils 221 : Section 2-1 Parallel Coil 222 : Parallel coil 2-2 231 : Section 3-1 Parallel Coil 232 : 3-2 Parallel Coil 300 : Busbar 301: 1st Extension Section 302: 2nd Extension Section 303: 3rd Extension Section 304: 4th Extension Section 310 : 1st busbar 320 : 2nd busbar 330 : 3rd busbar 340 : 4th busbar 411: First U-shaped joint 412: Second U-shaped joint 421: 1st V-phase joint 422 : Second V-phase joint 431: 1st W-phase joint 432 : 2nd W-phase joint 441 : 1-1 Neutral Junction 442 : 1st-2nd neutral junction 451 : Section 2-1 Neutral Junction 452 : Section 2-2 Neutral Junction 461 : Section 3-1 Neutral Junction 462 : Section 3-2 Neutral Junction R: Radial direction C: Peripheral direction A: Axial direction
Claims
Claim 1 A stator core having a plurality of slots formed along a circumferential direction (C); a plurality of coil bundles inserted into the plurality of slots; and a bus bar electrically connected to the plurality of coil bundles; wherein a plurality of layers spaced apart along a radial direction (R) are formed in each of the plurality of slots, and each of the plurality of coil bundles is provided with a lead wire and a neutral wire, and the bus bar is joined to the lead wire or the neutral wire, and at least a portion of the bus bar is disposed within a space formed between the plurality of coil bundles in the circumferential direction (C), and each of the plurality of coil bundles comprises: a crown portion provided at one end of an axial direction (A) perpendicular to the circumferential direction (C) and the radial direction (R), respectively; and a leg portion provided at the other end of the axial direction (A). The busbar comprises, wherein at least a portion of the busbar is disposed within a space formed between two adjacent leg portions in the circumferential direction (C); the busbar comprises: a first extension section extending along the axial direction (A) from a portion joined to the leg portion; and a second extension section bent and extended from the first extension section; wherein the second extension section extends along the radial direction (R); and the plurality of coil bundles are supplied with a three-phase alternating current, wherein the plurality of coil bundles comprises: a first coil bundle supplied with a U-phase current among the three-phase alternating current; a second coil bundle supplied with a V-phase current among the three-phase alternating current; and a third coil bundle supplied with a W-phase current among the three-phase alternating current. The busbar comprises: a first busbar connected to the lead wire of the first coil bundle and supplying the U-phase current; a second busbar connected to the lead wire of the second coil bundle and supplying the V-phase current; a third busbar connected to the lead wire of the third coil bundle and supplying the W-phase current; and a fourth busbar connected to the neutral wire of the first to third coil bundles.A stator assembly comprising: a busbar, wherein the busbar is bent and extended from the second extension section and extends along the circumferential direction (C); and further comprising: a third extension section provided on the fourth busbar, wherein the third extension section provided on the fourth busbar is provided adjacent to the stator core than the third extension section provided on each of the first to third busbars. Claim 2 delete Claim 3 delete Claim 4 delete Claim 5 A stator assembly in claim 1, wherein the first coil bundle comprises a first-1 parallel coil and a first-2 parallel coil, the second coil bundle comprises a second-1 parallel coil and a second-2 parallel coil, and the third coil bundle comprises a third-1 parallel coil and a third-2 parallel coil. Claim 6 In claim 5, a first U-phase junction formed by joining the lead wire of the first-1 parallel coil and the first busbar; a second U-phase junction formed by joining the lead wire of the first-2 parallel coil and the first busbar; a first V-phase junction formed by joining the lead wire of the second-1 parallel coil and the second busbar; a second V-phase junction formed by joining the lead wire of the second-2 parallel coil and the second busbar; a first W-phase junction formed by joining the lead wire of the third-1 parallel coil and the third busbar; and a second W-phase junction formed by joining the lead wire of the third-2 parallel coil and the third busbar. A stator assembly further comprising: a first U-phase joint provided at one end in the radial direction (R) of the leg portion provided in the first-1 parallel coil; a second U-phase joint provided at the other end in the radial direction (R) of the leg portion provided in the first-2 parallel coil; a first V-phase joint provided at the other end in the radial direction (R) of the leg portion provided in the second-1 parallel coil; and a second V-phase joint provided at one end in the radial direction (R) of the leg portion provided in the second-2 parallel coil. Claim 7 In claim 6, the first W-phase joint is provided at one end in the radial direction (R) of the leg portion provided in the third-1 parallel coil, and the second W-phase joint is provided at the other end in the radial direction (R) of the leg portion provided in the third-2 parallel coil, in a stator assembly. Claim 8 In claim 7, a 1-1 neutral junction formed by joining the neutral line of the 1-1 parallel coil and the 4th busbar; a 1-2 neutral junction formed by joining the neutral line of the 1-2 parallel coil and the 4th busbar; a 2-1 neutral junction formed by joining the neutral line of the 2-1 parallel coil and the 4th busbar; a 2-2 neutral junction formed by joining the neutral line of the 2-2 parallel coil and the 4th busbar; a 3-1 neutral junction formed by joining the neutral line of the 3-1 parallel coil and the 4th busbar; and a 3-2 neutral junction formed by joining the neutral line of the 3-2 parallel coil and the 4th busbar. A stator assembly comprising: a first-1 neutral joint provided at the other end in the radial direction (R) of a leg portion provided with the first U-shaped joint among a plurality of leg portions provided in the first-1 parallel coil; and a first-2 neutral joint provided at the one end in the radial direction (R) of a leg portion provided with the second U-shaped joint among a plurality of leg portions provided in the first-2 parallel coil. Claim 9 In claim 8, the second-1 neutral joint is provided at the radial (R) end of the leg portion where the first V-phase joint is provided among the plurality of leg portions provided in the second-1 parallel coil, and the second-2 neutral joint is provided at the radial (R) end of the leg portion where the second V-phase joint is provided among the plurality of leg portions provided in the second-2 parallel coil, in a stator assembly. Claim 10 In claim 8, the third-1 neutral joint is provided at the other end in the radial direction (R) of the leg portion provided with the first W-phase joint among the plurality of leg portions provided in the third-1 parallel coil, and the third-2 neutral joint is provided at the one end in the radial direction (R) of the leg portion provided with the second W-phase joint among the plurality of leg portions provided in the third-2 parallel coil. Claim 11 delete Claim 12 In claim 1, the third extension section provided on the third busbar is a stator assembly provided on the radial direction (R) outward from the third extension section provided on the first busbar. Claim 13 In claim 1, the third extension section provided in the second busbar is a stator assembly provided inward in the radial direction (R) from the third extension section provided in the second busbar. Claim 14 In claim 1, the first to third extension sections are stator assemblies provided within the plurality of coil bundles in the axial direction (A). Claim 15 In claim 14, the busbar further comprises a fourth extension section that is bent and extended from the third extension section and extends along the axial direction (A); and at least a portion of the fourth extension section is provided within the plurality of coil bundles in the axial direction (A). Claim 16 In claim 5, the stator core is provided with 96 slots along the circumferential direction (C), and each slot is provided with 8 layers along the radial direction (R), forming a stator assembly. Claim 17 In claim 16, when the 96 slots are each named slots 1 through 96 along the circumferential direction (C) of the slots and each layer is named layers 1 through 8 along the radial direction (R) of the slots, the 1-1 parallel coil, 1-2 parallel coil, 2-1 parallel coil, 2-2 parallel coil, 3-1 parallel coil, and 3-2 parallel coil are each inserted into the slots in combinations of 5 slot pitch, 6 slot pitch, and 7 slot pitch. Claim 18 In claim 17, the stator assembly is inserted into the slots such that the first-1 parallel coil, the first-2 parallel coil, the second-1 parallel coil, the second-2 parallel coil, the third-1 parallel coil, and the third-2 parallel coil each have an average slot pitch of 6 slots. Claim 19 A stator assembly; and a rotor provided on one side of the stator assembly; wherein the stator assembly comprises: a stator core having a plurality of slots formed along a circumferential direction (C); a plurality of coil bundles inserted into the plurality of slots; and a bus bar electrically connected to the plurality of coil bundles; wherein a plurality of layers spaced apart along a radial direction (R) are formed in each of the plurality of slots, and each of the plurality of coil bundles is provided with a lead wire and a neutral wire, and the bus bar is joined to the lead wire or the neutral wire, wherein at least a portion of the bus bar is disposed within a space formed between the plurality of coil bundles in the circumferential direction (C), and each of the plurality of coil bundles comprises: a crown portion provided at one end of an axial direction (A) perpendicular to the circumferential direction (C) and the radial direction (R), respectively; and a leg portion provided at the other end of the axial direction (A). The busbar comprises, wherein at least a portion of the busbar is disposed within a space formed between two adjacent leg portions in the circumferential direction (C); the busbar comprises: a first extension section extending along the axial direction (A) from a portion joined to the leg portion; and a second extension section bent and extended from the first extension section; wherein the second extension section extends along the radial direction (R); and the plurality of coil bundles are supplied with a three-phase alternating current, wherein the plurality of coil bundles comprises: a first coil bundle supplied with a U-phase current among the three-phase alternating current; a second coil bundle supplied with a V-phase current among the three-phase alternating current; and a third coil bundle supplied with a W-phase current among the three-phase alternating current. The busbar comprises: a first busbar connected to the lead wire of the first coil bundle and supplying the U-phase current; a second busbar connected to the lead wire of the second coil bundle and supplying the V-phase current; a third busbar connected to the lead wire of the third coil bundle and supplying the W-phase current; and a fourth busbar connected to the neutral wire of the first to third coil bundles.A motor comprising: a busbar, wherein the busbar is bent and extended from the second extension section and extends along the circumferential direction (C); and further comprising: a third extension section provided on the fourth busbar, wherein the third extension section provided on the fourth busbar is provided closer to the stator core than the third extension section provided on each of the first to third busbars.
Citation Information
Patent Citations
Rotary electrical machine and vehicle provided with rotary electrical machine
KR1020130038269A
Rotary electrical machine
WO2021079397A1