CN220043078U - Stator punching sheet with large, medium and small slots - Google Patents
Stator punching sheet with large, medium and small slots Download PDFInfo
- Publication number
- CN220043078U CN220043078U CN202321688535.3U CN202321688535U CN220043078U CN 220043078 U CN220043078 U CN 220043078U CN 202321688535 U CN202321688535 U CN 202321688535U CN 220043078 U CN220043078 U CN 220043078U
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- stator
- groove
- small
- slot
- long side
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- 238000004080 punching Methods 0.000 title claims abstract description 37
- 230000007704 transition Effects 0.000 claims abstract description 6
- 238000003475 lamination Methods 0.000 claims description 6
- 238000004804 winding Methods 0.000 abstract description 4
- 230000006978 adaptation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a large, medium and small slot type stator punching sheet, which comprises an annular stator punching sheet body, wherein a large stator slot, a medium stator slot and a small stator slot are formed in the inner side of the stator punching sheet body, the large stator slot, the medium stator slot and the small stator slot are all long slots, and the inner wall of a slot body in the length direction is a long side wall; the long side wall of the large stator groove is provided with a concave part, the long side wall of the middle stator groove is straight, and the long side wall of the small stator groove is provided with a convex part; the concave part and the convex part are arc-shaped; the concave part is in smooth transition connection with the long side wall of the large stator groove, and the convex part is in smooth transition connection with the long side wall of the small stator groove. The utility model can adapt different slot types to different numbers of electromagnetic wires, and avoids the phenomenon that part of slots are empty and the other part of slots are full when the low-harmonic winding is used.
Description
Technical Field
The utility model relates to the technical field of stator punching sheets, in particular to a large, medium and small slot type stator punching sheet.
Background
Generally, the slot patterns on the stator punching sheet are all the same in size, but with the gradual use of the low-harmonic winding, because the electromagnetic wires in each slot are different in number, part of slots are empty, part of slots are full, enough electromagnetic wires can not be plugged in the full slots, heat dissipation of the electromagnetic wires is not facilitated in the empty slots, and the electromagnetic wires can be loosened, so that a certain hazard is generated.
Disclosure of Invention
The utility model aims to: in order to overcome the defects in the prior art, the utility model provides a large, medium and small slot type stator punching sheet, so that different slot types can be adapted to different numbers of electromagnetic wires.
The technical scheme is as follows: in order to achieve the above purpose, the large, medium and small slot type stator punching sheet comprises an annular stator punching sheet body, wherein a large stator slot, a medium stator slot and a small stator slot are formed in the inner side of the stator punching sheet body, the large stator slot, the medium stator slot and the small stator slot are all long slots, and the inner wall of a slot body in the length direction is a long side wall; the long side wall of the large stator groove is provided with a concave part, the long side wall of the medium stator groove is straight, and the long side wall of the small stator groove is provided with a convex part.
Further, the concave part and the convex part are arc-shaped; the concave part is in smooth transition connection with the long side wall of the large stator groove, and the convex part is in smooth transition connection with the long side wall of the small stator groove.
Further, two concave parts are symmetrically arranged on two long side walls of the large stator groove; two raised parts are symmetrically arranged on two long side walls of the small stator groove.
Further, the large stator groove, the middle stator groove and the small stator groove are respectively provided with a narrowing notch which is gradually narrowed outwards, and the shapes of the narrowing notches on the large stator groove, the middle stator groove and the small stator groove are consistent.
Further, the large stator groove, the middle stator groove and the small stator groove are respectively provided with an arc groove bottom, and the narrowing groove opening is connected with the corresponding arc groove bottoms through two long side walls.
Further, two long side walls positioned in the same groove body extend in a splayed shape from the narrowed notch to the arc groove bottom.
Further, the big stator slot, the middle stator slot and the small stator slot which are closely adjacent to each other on the stator punching body are sequentially arranged into a stator slot group, and a plurality of stator slot groups are annularly arranged on the stator punching body.
The beneficial effects are that: the stator punching sheet of the utility model has the beneficial effects that:
1) The inner side of the stator punching sheet is provided with three types of grooves of large, medium and small so as to be suitable for electromagnetic wires with different numbers, and the phenomenon that when a low-harmonic winding is used, part of the grooves are empty and the other part of the grooves are full is avoided;
2) The long side wall of the large stator slot is provided with a concave part, the long side wall of the middle stator slot is straight, and the long side wall of the small stator slot is provided with a convex part, so that the lengths of the long side walls of the large stator slot, the middle stator slot and the small stator slot can be more similar, the distances between each stator slot on the stator punching sheet and the edge of the stator punching sheet are similar, and the integral structure of the stator punching sheet is more stable.
Drawings
Fig. 1 is a schematic structural view of a stator lamination of the present utility model.
Detailed Description
The utility model will be further described with reference to the accompanying drawings.
The stator punching sheet of the large, medium and small slot type as shown in fig. 1 comprises an annular stator punching sheet body 1, wherein a large stator slot 2, a medium stator slot 3 and a small stator slot 4 are formed in the inner side of the stator punching sheet body 1, and the space in the large stator slot 2, the medium stator slot 3 and the small stator slot 4 is sequentially reduced so as to adapt to electromagnetic wires of different numbers, and when a low-harmonic winding is used, the electromagnetic wires of corresponding numbers can be appropriately plugged into each slot, so that the phenomenon that part of slots are empty or full is avoided.
The large stator groove 2, the middle stator groove 3 and the small stator groove 4 are all long grooves, and the inner walls of the large stator groove 2, the middle stator groove 3 and the small stator groove 4 in the length direction are long side walls 5. The long side wall 5 of the large stator groove 2 is provided with a concave part 6, the long side wall 5 of the medium stator groove 3 is straight, and the long side wall 5 of the small stator groove 4 is provided with a convex part 7. Because the number of the electromagnetic wires needing to be plugged in the large stator slot 2 is more, and the number of the electromagnetic wires needing to be plugged in the small stator slot 4 is less, the length of the large stator slot 2 can be relatively longer; compared with the middle stator slot 3 and the small stator slot 4, the distance between the large stator slot 2 and the edge of the stator punching body 1 is shorter, and the structural strength of the stator punching body 1 at the corresponding position of the large stator slot 2 is slightly lower. The long side wall 5 of the large stator slot 2 is provided with the concave part 6, and the long side wall 5 of the large stator slot 2 is shorter on the premise that the number of the electromagnetic wires matched with the large stator slot 2 is fixed; similarly, since the long side wall 5 of the small stator slot 4 is provided with the outer protruding part, the long side wall 5 of the small stator slot 4 is longer, so that the lengths of the long side wall 5 on the large stator slot 2, the middle stator slot 3 and the small stator slot 4 can be more similar, the distances between each slot body on the stator punching sheet and the edge of the stator punching sheet are also similar, and the overall structure of the stator punching sheet is more stable.
The concave portion 6 and the convex portion 7 are arc-shaped. The concave part 6 is in smooth transitional connection with the long side wall 5 of the large stator groove 2, the convex part 7 is in smooth transitional connection with the long side wall 5 of the small stator groove 4, so that gaps are not easy to be generated between electromagnetic wires plugged into the groove and the inner wall of the groove body, the electromagnetic wires can be attached to the groove wall more tightly, heat dissipation of the electromagnetic wires is facilitated, and looseness of the electromagnetic wires is avoided.
Two concave parts 6 are symmetrically arranged on two long side walls 5 of the large stator groove 2, and two convex parts 7 are symmetrically arranged on two long side walls 5 of the small stator groove 4, so that electromagnetic wires are uniformly distributed on two sides of the inside of the corresponding stator groove.
The large stator groove 2, the middle stator groove 3 and the small stator groove 4 are respectively provided with a narrowing notch 8 which is gradually narrowed outwards, the narrowing notches 8 are gradually narrowed outwards from the inside of the groove, and the shapes of the narrowing notches 8 on the large stator groove 2, the middle stator groove 3 and the small stator groove 4 are consistent. In the large stator slot 2, the medium stator slot 3 and the small stator slot 4, the width of the narrowing notch 8 is uniform.
The large stator groove 2, the medium stator groove 3 and the small stator groove 4 are respectively provided with an arc groove bottom 9, the arc groove bottoms 9 are opposite to the narrow groove openings 8, the narrow groove openings 8 are connected with the corresponding arc groove bottoms 9 through two long side walls 5, and the long side walls 5 are connected with the corresponding arc groove bottoms 9 in a smooth transitional manner, so that electromagnetic wires plugged into the groove bodies are more easily attached to the inner walls of the groove bodies.
Two long side walls 5 positioned in the same groove body extend in a splayed shape from the narrowed notch 8 to the arc-shaped groove bottom 9, so that the corresponding groove body is gradually widened along the direction from the long side wall 5 to the arc-shaped groove bottom 9.
The stator punching body 1 is provided with a plurality of stator slot groups 10 in a circumferential direction, and the plurality of stator slot groups 10 are arranged at equal intervals.
The stator punching sheet body 1 is matched with electromagnetic wires with different numbers by arranging the large stator slot 2, the middle stator slot 3 and the small stator slot 4, so that the phenomenon that part of slots are empty and the other part of slots are full is avoided; and set up depressed part 6 on the long lateral wall 5 of big stator slot 2, set up bellying 7 on the long lateral wall 5 of little stator slot 4, then can make the length in big stator slot 2, well stator slot 3 and little stator slot 4 more be close to make the structure of stator punching body 1 more stable.
The foregoing is only a preferred embodiment of the utility model, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the utility model.
Claims (7)
1. A large, medium and small slot type stator punching sheet is characterized in that: the stator punching sheet comprises an annular stator punching sheet body (1), wherein a large stator groove (2), a middle stator groove (3) and a small stator groove (4) are formed in the inner side of the stator punching sheet body (1), the large stator groove (2), the middle stator groove (3) and the small stator groove (4) are all long grooves, and the inner wall of the groove body in the length direction is a long side wall (5); the long side wall (5) of the large stator groove (2) is provided with a concave part (6), the long side wall (5) of the medium stator groove (3) is straight, and the long side wall (5) of the small stator groove (4) is provided with a convex part (7).
2. The large, medium and small slot stator laminations of claim 1, wherein: the concave part (6) and the convex part (7) are arc-shaped; the concave part (6) is in smooth transition connection with the long side wall (5) of the large stator groove (2), and the convex part (7) is in smooth transition connection with the long side wall (5) of the small stator groove (4).
3. The large, medium and small slot stator laminations of claim 2, wherein: two concave parts (6) are symmetrically arranged on two long side walls (5) of the large stator groove (2); two raised parts (7) are symmetrically arranged on two long side walls (5) of the small stator groove (4).
4. The large, medium and small slot stator laminations of claim 1, wherein: the large stator groove (2), the middle stator groove (3) and the small stator groove (4) are respectively provided with a narrowing notch (8) which is gradually narrowed outwards, and the shapes of the narrowing notches (8) on the large stator groove (2), the middle stator groove (3) and the small stator groove (4) are consistent.
5. The large, medium and small slot stator laminations of claim 4, wherein: the large stator groove (2), the middle stator groove (3) and the small stator groove (4) are respectively provided with an arc groove bottom (9), and the narrow notch (8) is connected with the corresponding arc groove bottoms (9) through two long side walls (5).
6. The large, medium and small slot stator laminations of claim 5, wherein: two long side walls (5) positioned in the same groove body extend in a splayed shape from the narrowed notch (8) to the arc groove bottom (9).
7. A large, medium and small slot stator punching according to any of claims 1 to 6, characterized in that: the stator punching body (1) is provided with a plurality of stator slot groups (10) in a circumferential direction, wherein the stator slot groups (10) are sequentially arranged on the stator punching body (1) by the large stator slot (2), the middle stator slot (3) and the small stator slot (4) which are adjacent to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321688535.3U CN220043078U (en) | 2023-06-30 | 2023-06-30 | Stator punching sheet with large, medium and small slots |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321688535.3U CN220043078U (en) | 2023-06-30 | 2023-06-30 | Stator punching sheet with large, medium and small slots |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220043078U true CN220043078U (en) | 2023-11-17 |
Family
ID=88720485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321688535.3U Active CN220043078U (en) | 2023-06-30 | 2023-06-30 | Stator punching sheet with large, medium and small slots |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220043078U (en) |
-
2023
- 2023-06-30 CN CN202321688535.3U patent/CN220043078U/en active Active
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