Stator assembly

Abstract

The utility model discloses a stator assembly. The stator assembly comprises a stator iron core, an insulating framework and a leading-out wire structure, the insulating framework wraps the stator core, a through hole is formed in the stator core, the outgoing line structure is formed on the insulating framework, and a fixing part filled in the through hole is formed on the outgoing line structure. According to the stator assembly provided by the embodiment of the utility model, the stator core is provided with the through hole, and the outgoing line structure is provided with the fixing part filled in the through hole, so that the strength of the outgoing line structure can be increased, the production cost is not increased, the production period is not prolonged, and the stator assembly is convenient to produce; the through hole and the fixing part are both located in the stator core, so that the stator assembly is convenient to assemble.

Description

TECHNICAL FIELD

[0001] The utility model relates to a stator assembly, in particular to a stator assembly. BACKGROUND

[0002] The part of the stator assembly which protrudes radially and exceeds the outer circle of the stator core is a lead-out wire structure, in order to enhance the firmness of the lead-out wire structure, the common method is to connect the lower framework and the lead-out wire structure together through the reinforcing rib, the reinforcing rib is wrapped on the outer circle of the stator core, through this design, the strength of the radially protruding lead-out wire structure is relatively high, and it is difficult to break under external force.

[0003] In the above scheme, because the reinforcing rib is covered on the outer circle of the stator core, a protrusion will be generated compared to the surface of the outer circle of the stator core, when the stator assembly is installed, the outer circle of the stator core is usually used as circumferential positioning. In some installation environments, the reinforcing rib part interferes with the installation space (the diameter of the installation space is the same as the diameter of the stator core), so that assembly cannot be performed, and the reinforcing rib at this position needs to be cancelled during injection molding. After the reinforcing rib is cancelled, the strength of the radially protruding lead-out wire structure is obviously reduced, and the lead-out wire structure is prone to breakage when the external force is too large. The common solution is to coat a layer of glue at the position where the radially protruding lead-out wire structure meets the stator core to increase the strength, and the product cost increases after the glue is added. At the same time, because the size of the glue coating is difficult to control, the product consistency is poor, the solidification time is long, the product turnover time is increased, and the difficulty of mass production is large.

[0004] The information disclosed in this BACKGROUND section is only for the purpose of increasing the understanding of the background of the present utility model and should not be regarded as an acknowledgment or any form of suggestion that it forms prior art of this utility model. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a new stator assembly which can increase the strength of the lead-out wire structure and does not affect assembly, is convenient for mass production and does not additionally increase cost.

[0006] To achieve the above object, the embodiment of the utility model provides a stator assembly, which comprises a stator core, an insulation framework and a lead-out wire structure, the insulation framework is wrapped on the stator core, a through hole is formed in the stator core, the lead-out wire structure is formed on the insulation framework, and a fixed part filled in the through hole is formed on the lead-out wire structure.

[0007] In one or more embodiments of the utility model, the stator core comprises a stator yoke and a plurality of stator teeth formed on the inner side of the stator yoke, and the through hole is formed on the stator yoke in the radial direction.

[0008] In one or more embodiments of the present application, the insulation framework comprises an upper framework and a lower framework, and the upper framework and the lower framework are fixedly buckled on the stator core.

[0009] In one or more embodiments of the present application, the lead-out wire structure is formed at the edge of the upper framework.

[0010] In one or more embodiments of the present application, the fixing portion is formed at the bottom of the lead-out wire structure.

[0011] In one or more embodiments of the present application, the fixing portion is formed at the bottom of the lead-out wire structure and is arranged close to the connection between the lead-out wire structure and the upper framework.

[0012] In one or more embodiments of the present application, the through hole is provided with a plurality of through holes.

[0013] In one or more embodiments of the present application, the through hole is provided with two through holes.

[0014] In one or more embodiments of the present application, the lead-out wire structure is provided with a connecting post.

[0015] In one or more embodiments of the present application, the lead-out wire structure is provided with a connecting sheet.

[0016] Compared with the prior art, the stator assembly according to the embodiments of the present application can increase the strength of the lead-out wire structure by opening a through hole on the stator core and arranging a fixing portion in the through hole, without increasing the production cost, prolonging the production cycle, and facilitating the production. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a first structure schematic view of the stator assembly according to an embodiment of the present application;

[0018] Figure 2 is a second structure schematic view of the stator assembly according to an embodiment of the present application;

[0019] Figure 3 is a structure schematic view of the stator core according to an embodiment of the present application. DETAILED DESCRIPTION

[0020] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present application is not limited by the specific embodiments.

[0021] Unless specifically stated otherwise, throughout the specification and claims, the term "comprising" or variations such as "comprise" or "comprises" will be understood to imply the inclusion of a stated element or group of elements but not the exclusion of any other element or group of elements.

[0022] As shown in Figure 1 , Figure 2 and Figure 3 , a stator assembly according to a preferred embodiment of the present application comprises: a stator core 10, an insulation framework and a lead structure 30. The insulation framework is wrapped on the stator core 10, the stator core 10 is provided with a through hole 11, the lead structure 30 is formed on the insulation framework, and the lead structure 30 is provided with a fixing portion 31 filled in the through hole 11. The through hole 11 can be provided with one or more, and in an embodiment, the through hole 11 is provided with two. In other embodiments, the through hole 11 can be replaced by a blind hole.

[0023] Specifically, as shown in Figure 3 , the stator core 10 comprises a stator yoke 101 and a plurality of stator teeth 102 formed on the inner side of the stator yoke 101, and each through hole 11 is provided on the stator yoke 101 along the radial direction.

[0024] In an embodiment, as shown in Figure 1 and Figure 2 , the insulation framework comprises an upper framework 21 and a lower framework 22, and the upper framework 21 and the lower framework 22 are clamped and fixed on the stator core 10.

[0025] As shown in Figure 1 , the lead structure 30 is formed at the edge of the upper framework 21, the lead structure 30 extends outwardly along the radial direction, and the lead structure 30 and the upper framework 21 are integrally formed by injection molding.

[0026] As shown in Figure 2 , the fixing portion 31 is formed at the bottom of the lead structure 30 and is arranged close to the connection between the lead structure 30 and the upper framework 21. The fixing portion 31 is filled in the through hole 11 and fixed with the side wall of the through hole 11, one end of the fixing portion 31 penetrates through one end of the through hole 11 and is integrally formed with the lead structure 30, and the other end of the fixing portion 31 does not exceed the other end of the through hole 11 or is flush with the end face of the other end of the through hole 11. In other embodiments, one end of the fixing portion 31 is integrally formed with the lead structure 30, the other end penetrates through the through hole 11 and is integrally formed with a blocking portion, and the minimum width of the blocking portion is greater than the hole diameter of the through hole 11 so as to prevent the fixing portion 31 from being separated from the through hole 11.

[0027] As shown in Figure 1As shown, the lead-out structure 30 is formed with a terminal post (not shown in the figure), and the lead-out structure 30 is formed with a terminal lug 32, the terminal post is electrically connected with the terminal lug 32, the terminal post is used for welding the winding lead-out of the winding wound in the stator slot, and the terminal lug 32 is used for lead-out welding.

[0028] The upper framework 21 is further provided with a first limiting block 211, the first limiting block 211 is arranged on the upper framework 21 in a circumferential direction, the lower framework 22 is further provided with a second limiting block 221, the second limiting block 221 is arranged on the lower framework 22 in a circumferential direction, and the first limiting block 211 and the second limiting block 221 are both used for guiding and limiting the wire between the windings.

[0029] The foregoing description of specific exemplary embodiments of the present application is intended to be illustrative only and is not intended to be limiting as to the scope of the present application. Many changes and modifications can be suggested by those skilled in the art, and it is intended that the scope of the present application can only be limited by the scope of the appended claims. The exemplary embodiments were chosen and described in order to explain the principles of the present application and the practical application thereof and to enable others skilled in the art to understand for themselves the application, various embodiments being shown by way of example. The scope of the present application is to be defined by the claims and their equivalents.

Claims

1. A stator assembly characterized by, The application relates to a stator core, an insulation framework and a lead structure; the insulation framework is wrapped on the stator core, a through hole is arranged on the stator core, the lead structure is formed on the insulation framework, and a fixing part filled in the through hole is formed on the lead structure. The stator core comprises a stator yoke and a plurality of stator teeth formed on the inner side of the stator yoke, and the through hole is arranged on the stator yoke in the radial direction.

2. The stator assembly of claim 1, wherein, The insulation framework comprises an upper framework and a lower framework, and the upper framework and the lower framework are buckled and fixed on the stator core.

3. The stator assembly of claim 1, wherein, The lead structure is formed at the edge of the upper framework.

4. The stator assembly of claim 3, wherein, The fixing part is formed at the bottom of the lead structure.

5. The stator assembly of claim 4, wherein, The fixing part is formed at the bottom of the lead structure and is arranged close to the connection between the lead structure and the upper framework.

6. The stator assembly of claim 4, wherein, The through hole is provided with a plurality of through holes.

7. The stator assembly of claim 1, wherein, The through hole is provided with two through holes.

8. The stator assembly of claim 7, wherein, A terminal post is formed on the lead structure.

9. The stator assembly of claim 1, wherein, A terminal sheet is formed on the lead structure.

10. The stator assembly of claim 1, wherein, ​

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