Permanent magnet motor stator winding structure

Abstract

The utility model provides a kind of permanent magnet motor stator winding structure, it is related to permanent magnet motor field, comprising: stator core mechanism, the stator core mechanism includes stator core body, dovetail groove and sawtooth groove, the inner wall of the stator core mechanism is provided with winding assembly, the winding assembly includes winding unit, copper wire conductor slot, dovetail block and sawtooth block, the outer wall of the winding assembly is provided with copper wire body.The utility model, by the disassembly of winding unit, and then reduce the cost of maintenance, by the friction fit between dovetail block and dovetail groove and sawtooth block and sawtooth groove, so that winding copper wire body after winding unit is stabilized in the inner wall of stator core body, by the setting of copper wire conductor slot, it is convenient to the winding of copper wire body, simultaneously by the detachability of winding unit, so that copper wire body is wound in the outside, reduce the complexity of winding.

Description

Technical Field

[0001] This utility model relates to the field of permanent magnet motor technology, and in particular to a stator winding structure for a permanent magnet motor. Background Technology

[0002] A permanent magnet motor is a type of motor that uses permanent magnets to generate an excitation magnetic field. It features high efficiency, high power density, and excellent dynamic performance, and is widely used in industries such as industry, new energy vehicles, home appliances, and aerospace. The stator winding structure of a permanent magnet motor is its core component, which directly affects the motor's performance, efficiency, and reliability.

[0003] In existing technologies, the stator core and winding portion of permanent magnet motor stator windings are often integrated. When a portion of the winding is damaged, the entire stator winding structure often needs to be replaced, which increases the replacement cost. Utility Model Content

[0004] The purpose of this invention is to provide a stator winding structure for a permanent magnet motor, in order to solve the problem mentioned in the background art that when a part of the winding is damaged, the entire stator winding structure often needs to be replaced, which increases the replacement cost.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: including a stator core mechanism, wherein the stator core mechanism includes a stator core body, a dovetail groove and a serrated groove, and a winding assembly is provided on the inner wall of the stator core mechanism, wherein the winding assembly includes a winding unit, a copper wire guide groove, a dovetail clamp and a serrated block, and a copper wire body is provided on the outer wall of the winding assembly.

[0006] In a preferred embodiment, the inner wall of the stator core body is provided with a dovetail groove, and both sides of the inner wall of the dovetail groove are provided with serrated grooves.

[0007] In a preferred embodiment, the dovetail grooves are provided in multiple sets, and the multiple sets of dovetail grooves are evenly opened on the inner wall of the stator core body.

[0008] In a preferred embodiment, the inner wall of the stator core body is movably connected to one side of the winding unit, and the winding unit is configured as a T-shape.

[0009] In a preferred embodiment, the narrower end of the winding unit is close to the stator core body, and the outer wall of the winding unit is provided with a copper wire guide groove.

[0010] In one preferred embodiment, the inner wall of the copper wire guide groove is movably connected to the outer wall of the copper wire body, and the side of the winding unit near the stator core body is fixedly connected to the side of the dovetail clip.

[0011] In a preferred embodiment, the outer wall of the dovetail block is movably connected to the inner wall of the dovetail groove, and both sides of the outer wall of the dovetail block are fixedly connected to one side of the serrated block.

[0012] In a preferred embodiment, the outer wall of the sawtooth block is movably connected to the inner wall of the sawtooth groove.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, when a set of winding units is damaged and needs to be replaced, the winding unit is moved so that the dovetail block and the serrated block move on the inner wall of the dovetail groove and the serrated groove respectively, thereby removing the damaged winding unit and replacing it with a new winding unit. By disassembling the winding unit, the maintenance cost is reduced.

[0015] 2. In this utility model, the copper wire body is evenly wound around the outer wall of the winding unit by the guidance of the copper wire guide groove. Then, the winding unit is installed on the inner side of the stator core body by the dovetail clip and the dovetail clip. At the same time, the dovetail clip enters the interior of the dovetail groove, and the serrated block enters the interior of the serrated groove. Through the frictional cooperation between the dovetail clip and the dovetail groove, and between the serrated block and the serrated groove, the winding unit after the copper wire body is wound is stabilized on the inner wall of the stator core body. The setting of the copper wire guide groove facilitates the winding of the copper wire body. At the same time, the detachability of the winding unit allows the copper wire body to be wound on the outside, reducing the cumbersomeness of winding. Attached Figure Description

[0016] Figure 1 A schematic diagram of the stator winding structure of a permanent magnet motor provided by this utility model;

[0017] Figure 2 A schematic diagram of the stator core mechanism of a permanent magnet motor stator winding structure provided by this utility model;

[0018] Figure 3 A schematic diagram of a winding assembly for a permanent magnet motor stator winding structure provided by this utility model;

[0019] Figure 4 A schematic diagram of the copper wire guide groove of a permanent magnet motor stator winding structure provided by this utility model.

[0020] Legend:

[0021] 1. Stator core mechanism; 101. Stator core body; 102. Dovetail groove; 103. Serrated groove; 2. Winding assembly; 201. Winding unit; 202. Copper wire guide groove; 203. Dovetail clip; 204. Serrated block; 3. Copper wire body. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 This utility model provides a technical solution comprising: a stator core mechanism 1, the stator core mechanism 1 including a stator core body 101, a dovetail groove 102 and a serrated groove 103, a winding assembly 2 provided on the inner wall of the stator core mechanism 1, the winding assembly 2 including a winding unit 201, a copper wire guide groove 202, a dovetail locking block 203 and a serrated block 204, and a copper wire body 3 provided on the outer wall of the winding assembly 2.

[0024] In one embodiment, the inner wall of the stator core body 101 is provided with a dovetail groove 102, and both sides of the inner wall of the dovetail groove 102 are provided with serrated grooves 103. Multiple sets of dovetail grooves 102 are provided, and the multiple sets of dovetail grooves 102 are evenly provided on the inner wall of the stator core body 101. The inner wall of the stator core body 101 is movably connected to one side of the winding unit 201, and the winding unit 201 is configured as T-shaped.

[0025] Specifically, the detachable nature of the winding unit 201 allows the copper wire body 3 to be wound externally, reducing the complexity of the winding process.

[0026] In one embodiment, the narrower end of the winding unit 201 is close to the stator core body 101, and a copper wire guide groove 202 is provided on the outer wall of the winding unit 201. The inner wall of the copper wire guide groove 202 is movably connected to the outer wall of the copper wire body 3, and the side of the winding unit 201 close to the stator core body 101 is fixedly connected to the side of the dovetail block 203.

[0027] Specifically, the copper wire guide groove 202 facilitates the winding of the copper wire body 3, reducing the workload of manual winding for workers.

[0028] In one embodiment, the outer wall of the dovetail block 203 is movably connected to the inner wall of the dovetail groove 102, and both sides of the outer wall of the dovetail block 203 are fixedly connected to one side of the serrated block 204.

[0029] Specifically, the dovetail block 203 and the dovetail groove 102 facilitate the replacement of the winding unit 201, and the disassembly of the winding unit 201 reduces maintenance costs.

[0030] In one embodiment, the outer wall of the serrated block 204 is movably connected to the inner wall of the serrated groove 103.

[0031] Specifically, the friction between the serrated block 204 and the serrated groove 103 ensures the stability of the dovetail block 203 after installation.

[0032] Working principle: The copper wire body 3 is evenly wound around the outer wall of the winding unit 201 through the copper wire guide groove 202. Then, the winding unit 201 is installed on the inner side of the stator core body 101 through the dovetail clip 203 and the dovetail clip 204. At the same time, the dovetail clip 203 enters the interior of the dovetail groove 102, and the serrated block 204 enters the interior of the serrated groove 103. Through the frictional cooperation between the dovetail clip 203 and the dovetail groove 102, and between the serrated block 204 and the serrated groove 103, the winding unit 201 after the copper wire body 3 is wound is stabilized on the inner wall of the stator core body 101. When a set of winding units 201 is damaged and needs to be replaced, the winding unit 201 is moved so that the dovetail clip 203 and the serrated block 204 move on the inner walls of the dovetail groove 102 and the serrated groove 103, respectively, so that the damaged winding unit 201 can be removed and a new winding unit 201 can be replaced.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A stator winding structure for a permanent magnet motor, characterized in that, include: A stator core mechanism (1) is provided, comprising a stator core body (101), a dovetail groove (102) and a serrated groove (103). A winding assembly (2) is provided on the inner wall of the stator core mechanism (1). The winding assembly (2) comprises a winding unit (201), a copper wire guide groove (202), a dovetail clip (203) and a serrated block (204). A copper wire body (3) is provided on the outer wall of the winding assembly (2).

2. The stator winding structure of a permanent magnet motor according to claim 1, characterized in that: The inner wall of the stator core body (101) is provided with a dovetail groove (102), and both sides of the inner wall of the dovetail groove (102) are provided with serrated grooves (103).

3. The stator winding structure of a permanent magnet motor according to claim 2, characterized in that: The dovetail groove (102) is provided in multiple sets, and the multiple sets of dovetail grooves (102) are evenly opened on the inner wall of the stator core body (101).

4. The stator winding structure of a permanent magnet motor according to claim 1, characterized in that: The inner wall of the stator core body (101) is movably connected to one side of the winding unit (201), and the winding unit (201) is configured as T-shaped.

5. The stator winding structure of a permanent magnet motor according to claim 4, characterized in that: The narrower end of the winding unit (201) is close to the stator core body (101), and the outer wall of the winding unit (201) is provided with a copper wire guide groove (202).

6. The stator winding structure of a permanent magnet motor according to claim 5, characterized in that: The inner wall of the copper wire guide groove (202) is movably connected to the outer wall of the copper wire body (3), and the side of the winding unit (201) near the stator core body (101) is fixedly connected to the side of the dovetail block (203).

7. The stator winding structure of a permanent magnet motor according to claim 6, characterized in that: The outer wall of the dovetail block (203) is movably connected to the inner wall of the dovetail groove (102), and both sides of the outer wall of the dovetail block (203) are fixedly connected to one side of the serrated block (204).

8. The stator winding structure of a permanent magnet motor according to claim 7, characterized in that: The outer wall of the sawtooth block (204) is movably connected to the inner wall of the sawtooth groove (103).

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