Stator core insulation paper fixing structure

Abstract

The utility model relates to the technical field of motors, in particular to a stator core insulation paper fixing structure, which comprises a first framework and a second framework which are respectively arranged at the top end and the bottom end of a stator core, and the stator core comprises a circular ring part and tooth parts which are uniformly distributed along the inner wall of the circular ring part. A first empty slot for arranging slot paper is formed between the adjacent tooth parts and the inner wall of the circular ring part, phase separation paper is arranged in the slot paper in the first empty slot, a plurality of turning tables with consistent structures are arranged along the inner wall of the circular ring part, and each turning table is correspondingly arranged between the two tooth parts and is positioned above the slot paper; the inner wall of the first framework and the inner wall of the second framework are respectively provided with a limiting device used for limiting the groove paper, and by means of the technical scheme, the groove paper conveying device has the advantages that the groove paper is not prone to deformation, and production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors, and in particular relates to a stator core insulating paper fixing structure. Background Art

[0002] The existing isolation between the core and the enameled wire is mostly achieved by the cooperation between the stator slot paper and the frame. Figure 1 As shown in A in the middle frame, the bosses on both sides of the protruding device are arranged on the inner wall of the first skeleton, and the bosses are located above the tooth heads on both sides of the stator core tooth portion. The slot paper along the side of the tooth head is marked as a flange, and the top of the flange is limited by the bottom of the boss. The slot paper is insulating paper, and the direct contact between the core and the enameled wire is completely separated by the slot paper, which plays a role in insulation isolation and protection of the enameled wire. However, when the tooth head width in the stator core tooth portion is narrow and the flange length is long, the slot paper is easily deformed, thereby affecting the wire embedding. Utility Model Content

[0003] In order to solve the problems in the related art, the present application provides a stator core insulation paper fixing structure, which solves the problems of easy deformation of stator slot paper, inconvenient insertion of phase isolation paper and low production efficiency.

[0004] The technical solution is as follows:

[0005] A stator core insulating paper fixing structure comprises a first frame and a second frame respectively arranged at the top and bottom ends of the stator core, the stator core comprises a circular ring portion and teeth uniformly distributed along the inner wall of the circular ring portion, adjacent teeth and the inner wall of the circular ring portion form a first empty slot for arranging slot paper, and the slot paper in the first empty slot is arranged with phase-isolating paper, a plurality of turning tables with the same structure are arranged along the inner wall of the circular ring portion, each turning table is correspondingly arranged between two teeth and located above the slot paper, and the inner wall of the first frame and the inner wall of the second frame are both provided with a limiting device for limiting the slot paper.

[0006] Through the above technical solution, through the setting of the turning table, when the slot paper is placed in the stator core, the bottom of the turning table is located at the top of the slot paper, so that the slot paper can be limited, and the length value of the turning table will not change due to the change in the tooth head width of the tooth part, so that the slot paper can be stably limited without causing deformation of the slot paper, thereby ensuring the subsequent coil setting and production efficiency.

[0007] Furthermore, the tooth portion is in a "T" shape and is arranged along the periphery of the inner wall of the stator core.

[0008] Furthermore, the limiting device includes a first protrusion device and a second protrusion device with consistent structures, the first protrusion device is arranged along the inner wall of the first skeleton, and each first protrusion device is correspondingly arranged above the tooth portion, and the second protrusion device is arranged along the inner wall of the second skeleton, and each second protrusion device is correspondingly arranged at the bottom of the tooth portion.

[0009] Furthermore, each of the first protruding devices is symmetrically provided with a first boss on both sides, the first boss is located at the top of the groove paper, and each of the second protruding devices is symmetrically provided with a second boss on both sides, the second boss has the same structure as the first boss, and the second boss is located at the bottom of the groove paper.

[0010] Furthermore, a connecting column is provided at the bottom end of each of the first protruding devices and the top end of the second protruding devices, and a connecting hole is provided at the top end and the bottom end of the tooth portion, and the connecting hole is compatible with the connecting column.

[0011] To sum up, the beneficial effect of the utility model is that through the setting of the turning table, when the slot paper is placed in the stator core, the bottom of the turning table is located at the top of the slot paper, so that the slot paper can be limited, and the length value of the turning table will not change due to the change in the tooth head width of the tooth part, so that the slot paper can be limited stably without causing deformation of the slot paper, thereby ensuring the subsequent coil setting and production efficiency.

[0012] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0014] Figure 1 It is a structural schematic diagram of a slotted paper turning table in the prior art;

[0015] Figure 2 It is a structural schematic diagram of the stator core insulation paper fixing structure;

[0016] Figure 3 It is a cross-sectional view of a turning table in the stator core insulation paper fixing structure;

[0017] Figure 4 It is a structural schematic diagram of the stator core in the stator core insulation paper fixing structure;

[0018] Figure 5 It is a cross-sectional view of the stator core insulation paper fixing structure;

[0019] In the figure, 1, first skeleton; 2, second skeleton; 3, annular portion; 4, tooth portion; 5, groove paper; 6, phase-separating paper; 7, turning table; 8, first protruding device; 9, second protruding device; 10, first boss; 11, second boss; 12, connecting column; 13, connecting hole. DETAILED DESCRIPTION

[0020] Here, exemplary embodiments will be described in detail, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the utility model. Instead, they are only examples of devices and methods consistent with some aspects of the utility model as detailed in the attached claims.

[0021] In a possible embodiment, as shown in the attached Figure 2-5 As shown, the stator core insulating paper fixing structure includes a first skeleton 1 and a second skeleton 2 respectively arranged at the top and bottom ends of the stator core, the stator core includes a circular ring portion 3 and teeth 4 uniformly distributed along the inner wall of the circular ring portion 3, adjacent teeth 4 and the inner wall of the circular ring portion 3 form a first empty slot for arranging slot paper 5, and the slot paper 5 in the first empty slot is provided with a phase-isolating paper 6, and a plurality of turning tables 7 with the same structure are arranged along the inner wall of the circular ring portion 3, each turning table 7 is correspondingly arranged between two teeth 4 and located above the slot paper 5, the inner wall of the first skeleton 1 and the inner wall of the second skeleton 2 are both provided with a limiting device for limiting the slot paper 5, when the slot paper 5 is placed in the stator core, the bottom of the turning table 7 is located at the top of the slot paper 5, so that the slot paper 5 can be limited, and the length value of the turning table 7 will not change due to the change of the tooth head width of the tooth portion 4, so that the slot paper 5 can be stably limited, and the slot paper 5 will not be deformed, thereby ensuring the subsequent coil setting and production efficiency.

[0022] The tooth portion 4 is arranged in a "T" shape along the inner wall periphery of the stator core. The limiting device includes a first protruding device 8 and a second protruding device 9 with the same structure. The first protruding device 8 is arranged along the inner wall of the first frame 1, and each first protruding device 8 is correspondingly arranged above the tooth portion 4. The second protruding device 9 is arranged along the inner wall of the second frame 2, and each second protruding device 9 is correspondingly arranged at the bottom of the tooth portion 4. First bosses 10 are symmetrically arranged on both sides of each first protruding device 8, and the first boss 10 is located at the top of the slot paper 5. Second bosses 11 are symmetrically arranged on both sides of each second protruding device 9. The second boss 11 has the same structure as the first boss 10, and the second boss 11 is located at the bottom of the slot paper 5. A connecting column 12 is arranged at the bottom end of each first protruding device 8 and the top end of the second protruding device 9. A connecting hole 13 is opened at the top and bottom end of the tooth portion 4, and the connecting hole 13 is suitable for the connecting column 12, and is connected by The column 12 and the connecting hole 13 respectively connect the first frame 1 and the second frame 2 with the stator core, and an empty slot is formed between the adjacent teeth 4 and the inner wall of the stator core. The empty slot is used to set the slot paper 5. The side of the slot paper 5 is close to the edge of the empty slot. Because the shape of the tooth 4 is T-shaped, the slot paper 5 with the short side of the T-shape is turned up. When the width of the short side is too narrow, the turn-up is easy to deform, that is, the slot paper 5 is easy to deform. Because the slot paper 5 is insulating paper, the insulating paper is set to isolate the direct contact between the stator core and the enameled wire. After deformation, the effect of the insulating isolation is greatly reduced, which will affect the setting of the subsequent coils. However, after the turning table 7 is set, because the turning table 7 is set along the inner wall periphery of the stator core and the length is fixed, it will not change due to the change in the width of the short side of the tooth 4, thereby ensuring the limitation of the slot paper 5 and ensuring that the slot paper 5 will not be deformed, thereby ensuring the smooth setting of the subsequent coils and ensuring production efficiency.

[0023] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the present invention. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not present in the present invention. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present invention are indicated by the appended claims.

[0024] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A stator core insulation paper fixing structure, comprising a first frame and a second frame respectively arranged at the top and bottom ends of the stator core, characterized in that: The stator core includes a circular ring portion and teeth evenly distributed along the inner wall of the circular ring portion, adjacent teeth and the inner wall of the circular ring portion form a first empty slot for arranging slot paper, and the slot paper in the first empty slot is provided with phase-separating paper, and a plurality of turning tables with the same structure are arranged along the inner wall of the circular ring portion, each turning table is correspondingly arranged between two teeth and located above the slot paper, and the inner wall of the first skeleton and the inner wall of the second skeleton are both provided with a limiting device for limiting the slot paper.

2. The stator core insulation paper fixing structure according to claim 1, characterized in that: The tooth portion is in a "T" shape and is arranged along the inner wall periphery of the stator core.

3. The stator core insulation paper fixing structure according to claim 1, characterized in that: The limiting device includes a first protrusion device and a second protrusion device with consistent structures. The first protrusion device is arranged along the inner wall of the first skeleton, and each first protrusion device is correspondingly arranged above the tooth portion. The second protrusion device is arranged along the inner wall of the second skeleton, and each second protrusion device is correspondingly arranged at the bottom of the tooth portion.

4. The stator core insulation paper fixing structure according to claim 3, characterized in that: Each of the first protruding devices is symmetrically provided with a first boss on both sides, and the first boss is located at the top of the slot paper. Each of the second protruding devices is symmetrically provided with a second boss on both sides, and the second boss has the same structure as the first boss, and the second boss is located at the bottom of the slot paper.

5. The stator core insulation paper fixing structure according to claim 3, characterized in that: A connecting column is provided at the bottom end of each of the first protruding devices and the top end of the second protruding devices, and a connecting hole is provided at the top end and the bottom end of the tooth portion, and the connecting hole is compatible with the connecting column.

Images