CN214412428U - Anti-loosening stator assembly and motor - Google Patents
Anti-loosening stator assembly and motor Download PDFInfo
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- CN214412428U CN214412428U CN202120758561.3U CN202120758561U CN214412428U CN 214412428 U CN214412428 U CN 214412428U CN 202120758561 U CN202120758561 U CN 202120758561U CN 214412428 U CN214412428 U CN 214412428U
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Abstract
The utility model discloses a locking type stator module, including stator core, a plurality of stator slots are distributed along the circumference in the stator core, a stator winding formed by a plurality of conductor segments connected with each other is arranged in the stator slot, a plurality of layers of conductor segments are arranged along the radial direction of the stator core in each stator slot; the conductor section comprises a U-shaped conductor section and a semi-U-shaped conductor section, the semi-U-shaped conductor sections are located on the outermost layer of the stator slot, one end of each semi-U-shaped conductor section extends to the outer side of the stator slot to form an outgoing line end, and one end of each U-shaped conductor section extends to the outer side of the stator slot to form a U-shaped bending part; the U-shaped conductor section comprises a U-shaped outer conductor section positioned on the outermost layer of the stator slot, and a U-shaped bending part of the U-shaped outer conductor section extends outwards and is positioned outside the outgoing line end of the half U-shaped conductor section along the radial direction. The utility model has the characteristics of difficult not hard up deformation of stator winding, female easy to assemble that arranges.
Description
Technical Field
The utility model relates to a stator module and motor, especially a locking type stator module and motor that moves.
Background
The flat wire motor adopts a flat copper wire as a stator winding, the winding is made into a shape similar to a hairpin and then penetrates into a stator slot, and then the other end of the winding is welded and a wire is led out. In order to facilitate leading-out wiring of the winding, the conductor section for connecting the three-phase copper bar and the center line copper bar is generally arranged on the outermost layer of the stator slot at present, and the leading-out wire end extending to the outer side of the stator slot is correspondingly arranged on the outermost layer of the stator winding. However, in the processing process of the structure, all conductor sections are required to be subjected to head twisting process at the end part after being completely inserted into the stator slot, and the conductor section where the leading-out wire end is located is mostly a semi-U-shaped conductor section; when the outermost conductor segment is bent and twisted, the end part of the semi-U-shaped conductor segment is pulled outwards by pulling force and torsion force, so that the integral deformation and looseness of the stator winding are caused, and the problem that the conductor segment moves towards one end exists.
In addition, half U-shaped conductor section still can appear the problem that leg and copper bar can't align each other after the atress warp, and then just can install female subassembly of arranging after need carrying out the plastic to the lead-out wire end of half U-shaped conductor section, and also need maintain the drunkenness skew of conductor section and not hard up problem in the plastic process to guarantee the holistic connection stability of stator winding and compactness. Therefore, the existing arrangement mode of the flat copper wire stator winding has the problems that the stator winding is easy to loosen and deform, and the busbar is inconvenient to install.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a locking type stator module and motor that moves. The bus bar has the characteristics that the stator winding is not easy to loosen and deform, and the bus bar is convenient to install.
The technical scheme of the utility model: a kind of anti-loose type stator module, including the stator core, distribute a plurality of stator slots in the stator core along the circumference, the stator slot is equipped with the stator winding formed by a plurality of conductor segments interconnecting, there are multilayer conductor segments in each stator slot along the radial of the stator core; the conductor section comprises a U-shaped conductor section and a semi-U-shaped conductor section, the semi-U-shaped conductor sections are located on the outermost layer of the stator slot, one end of each semi-U-shaped conductor section extends to the outer side of the stator slot to form an outgoing line end, and one end of each U-shaped conductor section extends to the outer side of the stator slot to form a U-shaped bending part; the U-shaped conductor segments comprise a U-shaped inner conductor segment positioned on the innermost layer of the stator slot, a U-shaped outer conductor segment positioned on the outermost layer of the stator slot and a U-shaped middle conductor segment positioned between the U-shaped inner conductor segment and the U-shaped outer conductor segment; the U-shaped bending part of the U-shaped outer conductor section extends outwards and is positioned outside the leading-out wire end of the half U-shaped conductor section along the radial direction.
In the anti-loose stator assembly, the U-shaped bent parts of the adjacent U-shaped inner conductor segments of the innermost layer are arranged in a staggered manner along the radial direction.
In the anti-loosening stator assembly, the other end of the U-shaped conductor segment forms a welding end, the welding ends of the U-shaped intermediate conductor segment are respectively disposed in stator slots of different layers, and the welding ends of the U-shaped inner conductor segment and the U-shaped outer conductor segment are both disposed in the stator slots of the same layer.
In the anti-loosening stator assembly, the two ends of the U-shaped bent portion of each of the U-shaped inner conductor section and the U-shaped outer conductor section form S-shaped connecting portions.
In the anti-loosening stator assembly, the leading-out wire end of the half U-shaped conductor section and the U-shaped bent part of the U-shaped outer conductor section have the same height.
In the anti-loosening stator assembly, the outgoing line end comprises a star point outgoing line end and a three-phase outgoing line end, and the outer parts of the star point outgoing line end and the three-phase outgoing line end are both connected with the busbar assembly.
In the above anti-loosening stator assembly, the end of the outgoing line end is provided with an extending portion extending to the upper side of the U-shaped bending portion of the U-shaped outer conductor section, and the radial positions of the extending portion, the connection portion of the busbar assembly, and the U-shaped bending portion of the U-shaped outer conductor section are the same.
In the anti-loosening stator assembly, the busbar assembly comprises an insulating frame, and a U-phase copper bar, a V-phase copper bar and a W-phase copper bar which are connected with three-phase leading-out terminals and a central line copper bar which is connected with star point leading-out terminals are respectively arranged in the insulating frame; the U-phase copper bar, the V-phase copper bar, the W-phase copper bar and the center line copper bar are mutually insulated through the insulating frame, and the U-phase copper bar, the V-phase copper bar, the W-phase copper bar and the center line copper bar are mutually welded with the end of the outgoing line through the welding pins extending to the outer side of the insulating frame.
In the above anti-loose stator assembly, the stator winding is a 72-slot 8-pole 4-branch three-phase stator winding, and the number of conductor segments in each stator slot is 6.
An electric machine comprising an anti-loosening stator assembly as described above.
Compared with the prior art, the utility model has the characteristics of it is following:
(1) according to the stator winding, the semi-U-shaped conductor section can be positioned on the outermost layer of the stator slot through structural optimization of the semi-U-shaped conductor section and the U-shaped outer conductor section, and meanwhile, the outgoing line end of the semi-U-shaped conductor section can be wrapped on the secondary outer layer of the stator winding by the U-shaped bending part of the U-shaped outer conductor section, so that the outgoing line end can be limited from the inner side and the outer side by the U-shaped bending part of the U-shaped outer conductor section and the U-shaped middle conductor section, the stress deformation range of the outgoing line end is reduced, the problems of deformation and looseness of the stator winding caused by the outgoing line end during head twisting are effectively relieved, and the compactness of the stator winding is improved; meanwhile, the deformation range of the leading-out wire end can be reduced, and the position precision of the end part of the leading-out wire end can be improved, so that the installation of the busbar assembly is facilitated; the U-shaped bent parts of the adjacent U-shaped inner conductor sections are arranged in a staggered mode along the radial direction, so that the U-shaped bent parts located on the radially innermost layer of the stator winding can achieve the effect of limiting the inner side of each conductor section, and the connection tightness of the stator winding is further guaranteed;
(2) under the cooperation, the innermost layer and the outermost layer of the stator winding are the U-shaped bending parts of the U-shaped conductor sections, so that the external profile of the stator winding positioned outside the stator slot is more uniform, and the U-shaped bending parts can be mutually folded and limited, thereby further improving the structural stability and the anti-loosening effect of the utility model;
(3) the extension part is arranged at the end part of the leading-out wire end, the end part of the extension part is positioned above the U-shaped bending part of the U-shaped outer conductor section and is the same as the radial position of the U-shaped bending part, on one hand, the welding difficulty of the busbar assembly can be reduced, on the other hand, the U-shaped bending part can be used for limiting the extension part when the extension part is bent, so that the deformation and radial displacement of the leading-out wire end when the extension part is bent outwards are effectively avoided, namely, the position precision of the extension part is improved, and the installation of the busbar assembly is further facilitated;
therefore, the utility model has the characteristics of the difficult not hard up deformation of stator winding, female easy to assemble that arranges.
Drawings
FIG. 1 is an external view of the present invention;
FIG. 2 is a schematic view of the arrangement of stator windings in stator slots;
FIG. 3 is a top view of the stator windings;
FIG. 4 is a connecting structure diagram of the half U-shaped conductor segment and the busbar assembly;
FIG. 5 is a schematic structural diagram of a stator winding on one side of a U-shaped bending part;
FIG. 6 is a profile view of a U-shaped outer conductor section;
FIG. 7 is a profile view of a U-shaped intermediate conductor segment;
FIG. 8 is a profile view of a U-shaped inner conductor section;
FIG. 9 is a profile view of a half U-shaped conductor section;
fig. 10 is a schematic developed view of the stator winding in embodiment 1;
fig. 11 is a development view of the U-phase winding in embodiment 1.
The labels in the figures are: the structure comprises a stator core 1, a semi-U-shaped conductor section 2, an outgoing line terminal 3, a U-shaped bent part 4, an inner conductor section 5, an outer conductor section 6, a middle conductor section 7, a welding terminal 8, a busbar assembly 9, an extension part 10 and a connecting part 11.
Detailed Description
The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.
Examples are given. A kind of anti-loose type stator assembly, form as shown in fig. 1-9, including the stator core 1, distribute a plurality of stator slots in the stator core 1 along the circumference, there are stator windings formed by a plurality of conductor segments interconnecting in the stator slot, there are multilayer conductor segments in each stator slot along the radial direction of the stator core; the conductor section comprises a U-shaped conductor section and a semi-U-shaped conductor section 2, the semi-U-shaped conductor section 2 is positioned on the outermost layer of the stator slot, one end of the semi-U-shaped conductor section 2 extends to the outer side of the stator slot and forms an outgoing line end 3, and one end of the U-shaped conductor section extends to the outer side of the stator slot and forms a U-shaped bending part 4; the U-shaped conductor segments comprise a U-shaped inner conductor segment 5 positioned on the innermost layer of the stator slot, a U-shaped outer conductor segment 6 positioned on the outermost layer of the stator slot and a U-shaped middle conductor segment 7 positioned between the U-shaped inner conductor segment 5 and the U-shaped outer conductor segment 6; the U-bend 4 of the U-shaped outer conductor section 6 extends outwards and is located radially outside the outgoing line end 3 of the half U-shaped conductor section 2.
The U-shaped bent parts 4 of the adjacent U-shaped inner conductor segments 5 of the innermost layer are arranged in a staggered mode in the radial direction.
The other ends of the U-shaped conductor section and the semi-U-shaped conductor section 2 form a welding end 8, the welding ends of the U-shaped middle conductor section 7 are respectively arranged in stator slots of different layers, and the welding ends 8 of the U-shaped inner conductor section 5 and the U-shaped outer conductor section 6 are both arranged in the stator slots of the same layer.
And S-shaped connecting parts 11 are formed at two ends of the U-shaped bending part 4 of the U-shaped inner conductor section 5 and the U-shaped outer conductor section 6.
The outgoing line end 3 of the semi-U-shaped conductor section 2 and the U-shaped bending part 4 of the U-shaped outer conductor section 6 are the same in height along the axial direction of the stator core 1.
The outgoing line end 3 comprises a star point outgoing line end and a three-phase outgoing line end, and the star point outgoing line end and the three-phase outgoing line end are both externally connected with a busbar assembly 9.
The end part of the leading-out wire end 3 is provided with an extending part 10 extending to the upper part of the U-shaped bending part 4 of the U-shaped outer conductor section 6, and the radial positions of the connecting part of the extending part 10 and the busbar assembly 9 and the U-shaped bending part 4 of the U-shaped outer conductor section 6 are the same.
The busbar assembly 9 comprises an insulating frame, and a U-phase copper bar, a V-phase copper bar and a W-phase copper bar which are connected with three-phase leading-out terminals and a central line copper bar which is connected with star point leading-out terminals are respectively arranged in the insulating frame; the U-phase copper bar, the V-phase copper bar, the W-phase copper bar and the center line copper bar are mutually insulated through the insulating frame, and the U-phase copper bar, the V-phase copper bar, the W-phase copper bar and the center line copper bar are mutually welded with the end of the outgoing line through the welding pins extending to the outer side of the insulating frame.
The stator winding is a 72-slot 8-pole 4-branch three-phase stator winding, the number of layers of the conductor segments in the stator slot is 6, the connection schematic diagram of the stator winding is shown in fig. 10-11, and a U-phase lap winding is taken as an example (V, W phase is similar to U phase, and is not described here again):
each branch winding of the U-phase comprises winding branches formed by connecting 19 conductor sections in series, 4 branches are uniformly distributed in the circumferential direction of the stator core 1 in a clockwise or anticlockwise mode at 360 degrees, and the conductor sections contained in each branch have the same span and the same structure.
Only the winding mode of the first branch of the U-phase is described, wherein the numbers in brackets represent the number of layers of the conductor segments in the stator slots, and the numbers outside the brackets represent the serial numbers of the stator slots in which the conductor segments are positioned. Example (c): 13(2) shows the position of the 2-layer conductor in the 13 th slot.
The 1 st branch is wound from the position of U1 in FIG. 11 and finally output to the three-phase center point from the position of X1. The number of the groove through which the 1 st branch is connected in series is as follows: 1(1), (10), (2) → 1(3) → 10(4) → 1(5) → 10(6) → 1(6) → 64(5) → 1(4) → 28(7) → 64(3) → 1(2) → 64(1) → 2(1) → 11(2) → 2(3) → 11(4) → 2(5) → 11(6) → 2(6) → 65(5) → 2(4) ((65) ((2) → 65) (1) → 3(1) → 12) (2) → 3) → 12 (3) → 12) → 6) → 1(6) → 66(6) → 6) ((3) → 6) ((3) ()) (3) → 6) ((3) → 6);
the starting slot and ending slot numbers corresponding to the 4 branches are distributed as follows: u1 for 1(1), X1 for 66 (1); u2 for 19(1), X2 for 12 (1); u3 for 37(1), X3 for 30 (1); u4 for 55(1), X4 for 48 (1); u1, U2, U3 and U4 are connected in parallel, X1, X2, X3 and X4 are connected in parallel, and finally the connection is carried out through a busbar assembly to form the finished U-phase winding.
The remaining V-and W-phase windings are symmetrically and uniformly distributed on the circumference, which is not illustrated here.
An electric machine comprising a locking stator assembly as described.
The utility model discloses a theory of operation: the utility model discloses when the winding, through all setting up half U-shaped conductor section 2 and U-shaped outer conductor section 6 outmost at the stator slot, bend the U-shaped 4 of U-shaped outer conductor section 6 simultaneously and extend to the radial outside of stator slot after turning through connecting portion 11 along the S-shaped for leading out terminal 3 and U-shaped 4 of bending can be inside and outside dislocation set, and then wrap up leading out terminal 3, effectively improve the holistic compactness of stator winding. The U-shaped inner conductor section 5 that is located the inlayer simultaneously is inside and outside dislocation set with U-shaped portion of bending 4 with the same structure for the conductor section number of piles in the final stator slot is 6 layers, and the conductor section number of piles outside the stator slot is 8 layers, keeps the stability of stator winding overall profile through inlayer and outermost U-shaped portion of bending 4, and the conductor section can not cause the holistic loose and skew of stator winding by the torsion of equipment when turning round the head.
When the stator winding is in a head twisting process, the U-shaped inner conductor section 5 and the U-shaped outer conductor section 6 are arranged in the stator slot at two ends, so that the U-shaped bending part 4 can be limited, and the U-shaped bending part 4 is prevented from being deviated outwards by torsion force during head twisting; when the leading-out wire end 3 at the inner side is twisted, the leading-out wire end 3 can be limited through the outermost U-shaped bending part 4, excessive deformation and displacement of the leading-out wire end 3 after torsion are effectively avoided, and accordingly tightness of the stator winding and position accuracy of the leading-out wire end 3 after twisting are guaranteed. The position precision of the leading-out wire end 3 can also save the original shaping process after being improved, thereby reducing the welding difficulty with the busbar assembly 9 and improving the wiring efficiency.
Because the outermost U-shaped bending part 4 is limited, the outgoing line end 3 can also form an L-shaped extension part 10 after being bent by 90 degrees, so that the extension part 10 can be positioned right above the outermost U-shaped bending part 4, and the welding difficulty of the extension part 10 and the busbar assembly 9 is further reduced.
Claims (10)
1. The utility model provides a locking type stator module which characterized in that: the stator comprises a stator core (1), wherein a plurality of stator slots are distributed in the stator core (1) along the circumferential direction, a stator winding formed by connecting a plurality of conductor segments is arranged in each stator slot, and a plurality of layers of conductor segments are arranged in each stator slot along the radial direction of the stator core; the conductor section comprises a U-shaped conductor section and a semi-U-shaped conductor section (2), the semi-U-shaped conductor section (2) is located on the outermost layer of the stator slot, one end of the semi-U-shaped conductor section (2) extends to the outer side of the stator slot to form an outgoing line end (3), and one end of the U-shaped conductor section extends to the outer side of the stator slot to form a U-shaped bending part (4); the U-shaped conductor segments comprise a U-shaped inner conductor segment (5) positioned at the innermost layer of the stator slot, a U-shaped outer conductor segment (6) positioned at the outermost layer of the stator slot and a U-shaped middle conductor segment (7) positioned between the U-shaped inner conductor segment (5) and the U-shaped outer conductor segment (6); the U-shaped bending part (4) of the U-shaped outer conductor section (6) extends outwards and is located outside the outgoing line end (3) of the semi-U-shaped conductor section (2) along the radial direction.
2. A anti-loosening stator assembly as defined in claim 1, wherein: the U-shaped bent parts (4) of the adjacent U-shaped inner conductor sections (5) of the innermost layer are arranged in a staggered mode in the radial direction.
3. A anti-loosening stator assembly as defined in claim 1, wherein: the other end of the U-shaped conductor section forms a welding end (8), the welding ends of the U-shaped middle conductor section (7) are arranged in stator slots of different layers respectively, and the welding ends (8) of the U-shaped inner conductor section (5) and the U-shaped outer conductor section (6) are arranged in the stator slots of the same layer.
4. A anti-loosening stator assembly as defined in claim 1, wherein: and S-shaped connecting parts (11) are formed at two ends of the U-shaped bending part (4) of the U-shaped inner conductor section (5) and the U-shaped outer conductor section (6).
5. A anti-loosening stator assembly as defined in claim 1, wherein: the outgoing line end (3) of the semi-U-shaped conductor section (2) is as high as the U-shaped bending part (4) of the U-shaped outer conductor section (6).
6. A anti-loosening stator assembly as defined in claim 1, wherein: the outgoing line end (3) comprises a star point outgoing line end and a three-phase outgoing line end, and the star point outgoing line end and the three-phase outgoing line end are both externally connected with a busbar assembly (9).
7. The anti-loosening stator assembly as defined in claim 6, wherein: the end part of the leading-out wire end (3) is provided with an extending part (10) extending to the upper part of the U-shaped bending part (4) of the U-shaped outer conductor section (6), and the radial positions of the connecting part of the extending part (10) and the busbar assembly (9) and the U-shaped bending part (4) of the U-shaped outer conductor section (6) are the same.
8. The anti-loosening stator assembly as defined in claim 6, wherein: the busbar assembly (9) comprises an insulating frame, and a U-phase copper bar, a V-phase copper bar and a W-phase copper bar which are connected with three-phase leading-out terminals and a central line copper bar which is connected with star point leading-out terminals are respectively arranged in the insulating frame; the U-phase copper bar, the V-phase copper bar, the W-phase copper bar and the center line copper bar are mutually insulated through the insulating frame, and the U-phase copper bar, the V-phase copper bar, the W-phase copper bar and the center line copper bar are mutually welded with the end of the outgoing line through the welding pins extending to the outer side of the insulating frame.
9. A anti-loosening stator assembly as defined in claim 1, wherein: the stator winding is a 72-slot 8-pole 4-branch three-phase stator winding, and the number of layers of conductor sections in the stator slots is 6.
10. An electric machine characterized by: the electrical machine comprising a anti-loosening stator assembly according to any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120758561.3U CN214412428U (en) | 2021-04-14 | 2021-04-14 | Anti-loosening stator assembly and motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120758561.3U CN214412428U (en) | 2021-04-14 | 2021-04-14 | Anti-loosening stator assembly and motor |
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| Publication Number | Publication Date |
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| CN214412428U true CN214412428U (en) | 2021-10-15 |
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| CN202120758561.3U Active CN214412428U (en) | 2021-04-14 | 2021-04-14 | Anti-loosening stator assembly and motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113162280A (en) * | 2021-04-14 | 2021-07-23 | 浙江龙芯电驱动科技有限公司 | Anti-loosening stator assembly and motor |
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2021
- 2021-04-14 CN CN202120758561.3U patent/CN214412428U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113162280A (en) * | 2021-04-14 | 2021-07-23 | 浙江龙芯电驱动科技有限公司 | Anti-loosening stator assembly and motor |
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