CN219717960U - Stator core - Google Patents
Stator core Download PDFInfo
- Publication number
- CN219717960U CN219717960U CN202320460839.8U CN202320460839U CN219717960U CN 219717960 U CN219717960 U CN 219717960U CN 202320460839 U CN202320460839 U CN 202320460839U CN 219717960 U CN219717960 U CN 219717960U
- Authority
- CN
- China
- Prior art keywords
- stator
- punching sheet
- annular
- stator punching
- stator core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000004080 punching Methods 0.000 claims abstract description 135
- 238000003466 welding Methods 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
A stator core comprises a plurality of groups of stator punching sheet blocks; the stator punching sheet blocks are connected end to form an annular stator core body, the head end of each stator punching sheet block is connected with an external connecting plate, and the tail end of each stator punching sheet block is provided with a connecting groove; when a plurality of groups of stator punching sheet blocks are connected end to form an annular stator core body, fixed annular punching sheets integrated with the stator punching sheet blocks are fixed on the upper side and the lower side of the stator core body; the outer side of the fixed annular punching sheet at one side of the stator core body is also fixed with a locking annular punching sheet which is integrated with the fixed annular punching sheet; mounting holes are formed in the outer connecting plates of the stator punching block; the locking annular punching sheet is connected with a mounting column; the upper end of the mounting column penetrates through the locking annular punching sheet, the fixing annular punching sheet and the mounting hole to be in threaded connection with a locking bolt. The stator punching block is more firmly connected.
Description
Technical Field
The utility model relates to the technical field of motor accessories, in particular to a stator core.
Background
The stator core is an important component of the magnetic circuit of the motor, and forms a complete magnetic circuit of the motor together with the rotor core and the air gap between the stator and the rotor. In an asynchronous motor, the magnetic flux in the stator core is alternating, thus generating core losses. The core loss includes two parts: hysteresis loss and eddy current loss.
The existing stator core is generally formed by laminating annular stator punching sheets, however, because the annular stator punching sheets are formed by adopting full-circle punching, the utilization rate of materials is low, and therefore, the stator core formed by connecting a plurality of stator punching sheet groups is formed, for example: as shown in fig. 1 of the patent, the stator core is formed by connecting nine stator core body groups (i.e. stator punching sheet blocks of the utility model), and adjacent stator core body groups (i.e. stator punching sheet blocks of the utility model) are fixed only by adopting a welding mode, so that the fixing mode is single, and when the stator core body groups are cracked, the stator core is easily unstable due to no other fixing modes, thereby influencing the use of the stator core.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a stator core which enables connection between stator punching sheet blocks to be more stable.
In order to solve the technical problems, the technical solution of the stator core of the utility model is as follows:
comprises a plurality of groups of stator punching sheet blocks formed by laminating stator punching sheets; the stator punching sheet blocks are connected end to form an annular stator core body, and the stator punching sheet blocks are three groups or four groups in total; a plurality of winding groups are connected to the stator punching sheet block; the head end of the stator punching sheet block is connected with an outer connecting plate, and the tail end of the stator punching sheet block is provided with a connecting groove corresponding to the outer connecting plate; the outer connecting plate at the head end of the stator punching block is inserted into the connecting groove at the tail end of the stator punching block adjacent to the outer connecting plate; when a plurality of groups of stator punching sheet blocks are connected end to form an annular stator core body, fixed annular punching sheets integrated with the stator punching sheet blocks are fixed on the upper side and the lower side of the stator core body; the outer side of the fixed annular punching sheet at one side of the stator core body is also fixed with a locking annular punching sheet which is integrated with the fixed annular punching sheet; mounting holes are formed in the outer connecting plates of the stator punching block; the locking annular punching sheet is connected with a mounting column corresponding to the mounting hole; the upper end of the mounting column penetrates through the fixed annular punching sheet and the mounting hole to be in threaded connection with a locking bolt.
The stator core body is formed by connecting four groups of stator punching sheet blocks end to end.
And each stator punching sheet block is connected with two groups of winding groups.
The fixed annular punching sheet is integrated with the stator punching sheet block by welding the stator punching sheet block; the locking annular punching sheet is welded and fixed with the annular punching sheet to form a whole.
The head end of the stator punching sheet block is provided with a limiting groove, and the tail end of the stator punching sheet block is connected with a limiting plate corresponding to the limiting groove; the limiting plate at the tail end of the stator punching block is inserted into the limiting groove at the head end of the stator punching block adjacent to the limiting plate.
The utility model has the following technical effects: the utility model relates to a stator core, which comprises a plurality of groups of stator punching sheet blocks formed by laminating stator punching sheets, wherein the plurality of groups of stator punching sheet blocks are connected end to form an annular stator core body; according to the utility model, on the connection of the stator punching sheet blocks, not only is the original stator punching sheet blocks connected end to form the connection mode of the annular stator core body adopted, but also when the stator punching sheet blocks are connected end to form the annular stator core body, the upper side and the lower side of the stator core body are also fixed through the fixed annular punching sheets integrated with the stator punching sheet blocks, the outer side of the fixed annular punching sheet at one side of the stator core body is also fixed with the locking annular punching sheet integrated with the fixed annular punching sheet, the locking annular punching sheet is connected with the mounting column, and the upper end of the mounting column penetrates through the fixed annular punching sheet and the stator core body to be in threaded connection with the locking bolt, so that the stator punching sheet blocks are locked on the locking annular punching sheet, and the connection of the stator punching sheet blocks is more stable.
Drawings
The utility model is described in further detail below with reference to the attached drawings and detailed description:
fig. 1 is a schematic structural view of a stator core according to the present utility model;
fig. 2 is an enlarged view of a portion a of fig. 1;
fig. 3 is an enlarged view of a portion B of fig. 1;
fig. 4 is an exploded view of a stator core according to the present utility model;
fig. 5 is an enlarged view of a portion C of fig. 4;
fig. 6 is a schematic structural view of the stator core body.
Detailed Description
The utility model is further described in detail below with reference to the accompanying drawings.
See fig. 1-6.
A stator core comprises a plurality of groups of stator punching sheet blocks 1 formed by laminating stator punching sheets; the stator punching sheet blocks 1 are connected end to form an annular stator core body 21 (adjacent stator punching sheet blocks 1 are fixed in a welding mode), and specifically, the stator punching sheet blocks 1 are three groups or four groups in total; preferably, the stator core body 21 is formed by connecting four groups of stator punching sheet blocks 1 end to end; the stator punching block 1 is connected with a plurality of groups of winding groups 2, specifically, the stator punching block 1 is connected with two groups of winding groups 2, the head end of the stator punching block 1 is connected with an outer connecting plate 3, the tail end of the stator punching block 1 is provided with a connecting groove 4 corresponding to the outer connecting plate 3, and the outer connecting plate 3 at the head end of the stator punching block 1 is inserted into the connecting groove 4 adjacent to the tail end of the stator punching block 1 (refer to fig. 6).
When four groups of stator punching sheet blocks 1 are connected end to form an annular stator core body 21, fixing fixed annular punching sheets 5 which are integrated with the stator punching sheet blocks 1 on the upper side and the lower side of the stator core body 21, wherein the fixed annular punching sheets 5 are connected with the stator punching sheet blocks 1 in a welding mode to form an integral with the stator punching sheet blocks 1, a locking annular punching sheet 6 which is integrated with the fixed annular punching sheets 5 is also fixed on the outer side of the fixed annular punching sheets 5 on one side of the stator core body 21, and the locking annular punching sheets 6 are also connected with the fixed annular punching sheets 5 in a welding mode to form an integral with the fixed annular punching sheets 5; the outer connecting plates 3 of the stator punching block 1 are provided with mounting holes 7, the locking annular punching 6 is connected with mounting columns 8 corresponding to the mounting holes 7, and the upper ends of the mounting columns 8 penetrate through the fixed annular punching 5 and the mounting holes 7 to be in threaded connection with a locking bolt 9; the stator punching block 1 is fixed for the second time through the two fixed annular punching sheets 5 positioned on the upper side and the lower side of the stator core body 21, and then the stator punching block 1 is locked through the upper end of the mounting column 8 on the locking annular punching sheet 6 penetrating through the fixed annular punching sheet 5 and the mounting hole 7 and being in threaded connection with the locking bolt 9, so that the connection between the stator punching block 1 and the stator punching block 1 is more stable.
Specifically, the head end of the stator punching block 1 is provided with a limit groove 11, the tail end of the stator punching block 1 is connected with a limit plate 12 corresponding to the limit groove 11, and the limit plate 12 at the tail end of the stator punching block 1 is inserted into the limit groove 11 adjacent to the head end of the stator punching block 1.
Claims (5)
1. A stator core comprises a plurality of groups of stator punching sheet blocks (1) formed by laminating stator punching sheets; the stator punching sheet blocks (1) are connected end to end with each other to form an annular stator core body (21), and are characterized in that: the stator punching sheet blocks (1) are three groups or four groups in total; a plurality of winding groups (2) are connected to the stator punching block (1); the head end of the stator punching block (1) is connected with an outer connecting plate (3), and the tail end of the stator punching block (1) is provided with a connecting groove (4) corresponding to the outer connecting plate (3); the outer connecting plate (3) at the head end of the stator punching block (1) is inserted into the connecting groove (4) at the tail end of the stator punching block (1) adjacent to the outer connecting plate; when a plurality of groups of stator punching sheet blocks (1) are connected end to form an annular stator core body (21), fixed annular punching sheets (5) which are integrated with the stator punching sheet blocks (1) are fixed on the upper side and the lower side of the stator core body (21); the outer side of the fixed annular punching sheet (5) at one side of the stator core body (21) is also fixed with a locking annular punching sheet (6) which is integrated with the fixed annular punching sheet (5); mounting holes (7) are formed in the outer connecting plates (3) of the stator punching block (1); the locking annular punching sheet (6) is connected with a mounting column (8) corresponding to the mounting hole (7); the upper end of the mounting column (8) penetrates through the fixed annular punching sheet (5) and the mounting hole (7) to be in threaded connection with a locking bolt (9).
2. A stator core according to claim 1, characterized in that: the stator core body (21) is formed by connecting four groups of stator punching sheet blocks (1) end to end.
3. A stator core according to claim 2, characterized in that: and each stator punching sheet block (1) is connected with two winding groups (2).
4. A stator core according to claim 1, characterized in that: the fixed annular punching sheet (5) is integrated with the stator punching sheet assembly (1) by welding the stator punching sheet assembly (1); the locking annular punching sheet (6) is welded and fixed with the annular punching sheet (5) to form a whole with the fixed annular punching sheet (5).
5. A stator core according to claim 1, characterized in that: a limiting groove (11) is formed in the head end of the stator punching block (1), and a limiting plate (12) corresponding to the limiting groove (11) is connected to the tail end of the stator punching block (1); the limiting plate (12) at the tail end of the stator punching block (1) is inserted into the limiting groove (11) at the head end of the stator punching block (1) adjacent to the limiting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320460839.8U CN219717960U (en) | 2023-03-13 | 2023-03-13 | Stator core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320460839.8U CN219717960U (en) | 2023-03-13 | 2023-03-13 | Stator core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219717960U true CN219717960U (en) | 2023-09-19 |
Family
ID=87998717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320460839.8U Active CN219717960U (en) | 2023-03-13 | 2023-03-13 | Stator core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219717960U (en) |
-
2023
- 2023-03-13 CN CN202320460839.8U patent/CN219717960U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shengzhou Chenglian Mould Co.,Ltd. Assignor: Zhejiang Material Products Zhongda Motor Core Manufacturing Co.,Ltd. Contract record no.: X2023330000946 Denomination of utility model: A stator iron core Granted publication date: 20230919 License type: Common License Record date: 20231222 |
|
| EE01 | Entry into force of recordation of patent licensing contract |