CN219960234U - Combined stator core - Google Patents
Combined stator core Download PDFInfo
- Publication number
- CN219960234U CN219960234U CN202320796902.5U CN202320796902U CN219960234U CN 219960234 U CN219960234 U CN 219960234U CN 202320796902 U CN202320796902 U CN 202320796902U CN 219960234 U CN219960234 U CN 219960234U
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- China
- Prior art keywords
- outer ring
- stator teeth
- stator
- stator core
- positioning
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- 238000009434 installation Methods 0.000 claims abstract description 5
- 238000004804 winding Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000003475 lamination Methods 0.000 claims description 2
- 239000002994 raw material Substances 0.000 abstract description 18
- 238000011900 installation process Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Iron Core Of Rotating Electric Machines (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The utility model relates to a combined stator core, which comprises an outer ring piece and a plurality of stator teeth; the outer ring piece is annular, and fixing grooves which are in one-to-one correspondence with the stator teeth are uniformly formed in the inner side of the outer ring piece; the stator teeth are uniformly arranged on the inner side of the outer ring piece along the circumference, the stator teeth are all arranged along the radial direction of the outer ring piece, and one ends of the stator teeth are respectively installed in the corresponding fixing grooves in an interference manner; according to the utility model, the stator core is divided into the outer ring piece and the stator teeth, and the two parts can be punched independently, so that the utilization rate of raw materials is improved, and the stator core and the rotor core can adopt different raw materials, so that the cost of the raw materials is reduced; in addition, the stator teeth can be pre-positioned in the installation process by the positioning tool, so that after all stator teeth are simultaneously installed on the outer ring piece, the positioning tool can be taken out after the installation is finished, and the production efficiency of the stator core is improved.
Description
Technical Field
The utility model relates to the technical field of stator cores, in particular to a combined stator core.
Background
As shown in fig. 1, the current common stator core single sheet is formed by stamping through a die, the tooth part and the yoke part of the stator core are integrated, and then a plurality of stamped stator core single sheets are stacked together to achieve the required thickness of the stator core by welding, self-buckling or bonding.
As shown in fig. 2, at present, most stator core single-sheet stamping requires a square raw material larger than that of the stator core, the middle remaining circular part of the stator core after stamping is used for stamping the rotor core, other redundant materials are discarded, so that the raw material utilization rate of single-sheet stator core stamping is very low, and the stator core must be made of the same raw material.
Disclosure of Invention
Based on the above description, the utility model provides a combined stator core, which is divided into an outer ring piece and stator teeth, and the two parts can be punched independently, so that the utilization rate of raw materials is improved.
The technical scheme for solving the technical problems is as follows: a combined stator core comprises an outer ring piece and a plurality of stator teeth; the outer ring piece is annular, and fixing grooves which are in one-to-one correspondence with the stator teeth are uniformly formed in the inner side of the outer ring piece; one end of the stator tooth is respectively installed in the corresponding fixed groove in an interference manner, and the other end of the stator tooth is respectively in interference fit with the corresponding fixed groove.
On the basis of the technical scheme, the utility model can be improved as follows.
Further, the stator core further comprises a positioning tool for positioning the stator teeth in the installation process; the positioning tool is annular, and positioning grooves which are in one-to-one correspondence with the stator teeth are uniformly formed in the outer side of the positioning tool; the other ends of the stator teeth are detachably matched with the corresponding positioning grooves respectively.
Further, the positioning grooves penetrate through two end faces of the positioning tool along the axial direction of the positioning tool.
Further, grooves are formed in two opposite side walls of the bottom end of the positioning groove, and penetrate through two sides of the positioning tool along the axial direction of the positioning tool; the stator teeth are provided with lugs matched with the grooves on two opposite sides of the end part of the stator teeth, which is close to the positioning tool.
Further, the fixing grooves penetrate through two end faces of the outer ring piece along the axial direction of the outer ring piece.
Further, the stator teeth have a thickness in the axial direction that is less than or equal to the thickness in the axial direction of the outer ring.
Further, the outer ring piece is formed by spiral winding or lamination of punching sheets.
Further, the outer ring member and the stator teeth are made of a different material than the rotor core.
Compared with the prior art, the technical scheme of the utility model has the following beneficial technical effects:
1. according to the utility model, the stator core is respectively provided with the outer ring piece and the stator teeth, and the two parts can be punched independently, so that the utilization rate of raw materials is improved;
2. the stator core of the utility model does not need to leave the rest part for stamping the rotor core during stamping, so the stator core and the rotor core can be stamped separately from the rotor core, and different raw materials can be adopted for the stator core and the rotor core, thereby reducing the cost of the raw materials;
3. the stator teeth can be pre-positioned in the installation process by the positioning tool, and the positioning tool can be taken out after the installation is completed after all the stator teeth are simultaneously installed on the outer ring piece, so that the production efficiency of the stator core is improved.
4. The outer ring piece can adopt a narrow steel belt as a raw material, and adopts spiral rotating and winding forming, so that the utilization rate of the raw material is further improved.
Drawings
Fig. 1 is a schematic structural view of a conventional stator core;
fig. 2 is a schematic view of the raw material of fig. 2 during single-piece stamping of a conventional stator core;
fig. 3 is a schematic structural diagram of a combined stator core according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a stator tooth installed in a positioning tool according to an embodiment of the present utility model;
FIG. 5 is an enlarged partial schematic view of area A of FIG. 4;
FIG. 6 is a schematic view showing a state in which an outer ring member is mounted on the outer side of a stator tooth in the embodiment of the present utility model;
FIG. 7 is a schematic view of the spiral wrap of the outer ring member;
in the drawings, the list of components represented by the various numbers is as follows:
1. an outer ring member; 11. a fixing groove; 2. stator teeth; 21. a bump; 3. positioning a tool; 31. a positioning groove; 32. a groove.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Embodiments of the utility model are illustrated in the accompanying drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.
A combined stator core comprises an outer ring piece 1, a plurality of stator teeth 2 and a positioning tool 3 for positioning the stator teeth 2 in the installation process.
The outer ring member 1 is ring-shaped, and fixing grooves 11 are uniformly provided on the inner side thereof in one-to-one correspondence with the stator teeth 2. The stator teeth 2 are circumferentially uniformly disposed inside the outer ring member 1, and the stator teeth 2 are each disposed in the radial direction of the outer ring member 1. The outer ends of the stator teeth 2 are respectively mounted in the corresponding fixing grooves 11 with interference. The positioning grooves 11 penetrate through two end faces of the positioning tool 1 along the axial direction of the positioning tool 1, so that the stator teeth 2 can be pushed into the fixing grooves 11 from the end face of the outer ring piece 1 conveniently.
Preferably, the stator teeth 2 and the outer ring member 1 have equal thickness in the axial direction, so that two axially opposite surfaces of the stator teeth 2 are flush with two end surfaces of the outer ring member 1, and subsequent installation is facilitated. However, in the present embodiment, the thickness of the stator teeth 2 in the axial direction is smaller than or equal to the thickness of the outer ring 1 in the axial direction, considering that there is an error in processing the stator teeth 2 and the outer ring 1.
The positioning tool 3 is also annular, positioning grooves 31 corresponding to the stator teeth 2 one by one are uniformly formed in the outer side of the positioning tool, and the inner ends of the stator teeth 2 are respectively detachably installed in the corresponding positioning grooves 31. The positioning grooves 31 penetrate through two end faces of the positioning tool 3 along the axial direction of the positioning tool 3, so that the stator teeth 2 can be pushed into the positioning grooves 31 from the end faces of the positioning tool 3.
In addition, grooves 32 are formed in two opposite side walls of the bottom end of the positioning groove 31, and the grooves 32 penetrate through two end faces of the positioning tool 3 along the axial direction of the positioning tool 3. The opposite sides of the end part of the stator teeth 2, which is close to the positioning tool 3, are respectively provided with a convex block 21 which is matched with the groove 32. When the stator teeth 2 are installed in the positioning groove 31, the stator teeth 2 can be prevented from being separated from the positioning tool 3 from the radial direction through the clamping connection of the grooves 32 and the protruding blocks 21.
The mounting manner of the present embodiment is as follows;
(1) The stator teeth 2 are sequentially installed in the positioning grooves 31 of the positioning tool 3, and the stator teeth 2 are positioned in advance. At this time, the stator teeth 2 can be further ensured to be stably mounted on the positioning tool 3 by clamping the stator teeth 2 in the axial direction.
(2) The outer ring 1 is pushed in the axial direction, the outer ring 1 is arranged on the outer side of the stator teeth 2, and the stator teeth 2 are simultaneously arranged in the corresponding fixing grooves 11 from the end surface of the outer ring 1. The firm connection of the stator teeth 2 and the outer ring 1 is achieved by an interference fit of the ends of the stator teeth 2 and the fixing grooves 11.
(3) The stator teeth 2 are loosened in the axial direction, the positioning tool 3 is taken out in the axial direction, and the installation of the combined stator core of the embodiment is completed, and a winding groove is formed between every two adjacent stator teeth 2.
In the embodiment, the stator core is respectively provided with the outer ring piece 1 and the stator teeth 2, and the two parts can be independently stamped, so that the utilization rate of raw materials is improved. In addition, the stator core of the utility model does not need to leave the rest part for stamping the rotor core during stamping, so the stator core and the rotor core can be stamped separately from the rotor core, and different raw materials can be adopted for the stator core and the rotor core, thereby reducing the cost of the raw materials.
Preferably, as shown in fig. 7, the outer ring 1 adopts a narrow steel belt as a raw material, and adopts spiral rotation forming, so that the utilization rate of the raw material is further improved.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (8)
1. A combined stator core comprising an outer ring member and a plurality of stator teeth; the outer ring piece is annular, and fixing grooves which are in one-to-one correspondence with the stator teeth are uniformly formed in the inner side of the outer ring piece; the stator teeth are uniformly arranged on the inner side of the outer ring piece along the circumference, the stator teeth are arranged along the radial direction of the outer ring piece, and one ends of the stator teeth are respectively installed in the corresponding fixing grooves in an interference mode.
2. The modular stator core as set forth in claim 1 further comprising a positioning fixture for positioning the stator teeth during installation; the positioning tool is annular, and positioning grooves which are in one-to-one correspondence with the stator teeth are uniformly formed in the outer side of the positioning tool; the other ends of the stator teeth are detachably matched with the corresponding positioning grooves respectively.
3. The combined stator core of claim 2, wherein the positioning slots extend through both end surfaces of the positioning tool in an axial direction of the positioning tool.
4. The combined stator core according to claim 3, wherein grooves are formed in two opposite side walls of the bottom end of the positioning groove, and the grooves penetrate through two sides of the positioning tool in the axial direction of the positioning tool; the stator teeth are provided with lugs matched with the grooves on two opposite sides of the end part of the stator teeth, which is close to the positioning tool.
5. A combined stator core according to claim 1, characterized in that the fixing grooves each penetrate both end surfaces of the outer ring member in the axial direction of the outer ring member.
6. A combined stator core according to claim 1, characterized in that the thickness of the stator teeth in the axial direction is smaller than or equal to the thickness of the outer ring element in the axial direction.
7. A combined stator core according to claim 1, characterized in that the outer ring member is formed by spiral winding or lamination.
8. A combined stator core according to claim 1, characterized in that the outer ring member and the stator teeth are made of a different material than the rotor core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320796902.5U CN219960234U (en) | 2023-04-11 | 2023-04-11 | Combined stator core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320796902.5U CN219960234U (en) | 2023-04-11 | 2023-04-11 | Combined stator core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219960234U true CN219960234U (en) | 2023-11-03 |
Family
ID=88540001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320796902.5U Active CN219960234U (en) | 2023-04-11 | 2023-04-11 | Combined stator core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219960234U (en) |
-
2023
- 2023-04-11 CN CN202320796902.5U patent/CN219960234U/en active Active
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