Stator support, stator assembly and liquid-cooled motor

Abstract

The utility model belongs to the technical field of liquid cooling motor discloses a kind of stator support, stator assembly and liquid cooling motor, stator support includes support body, stator core and insulating plate, stator core is sleeved in support body, the outer peripheral wall of stator core is equipped with multiple stator teeth that are evenly spaced along its circumferential direction, tooth slot is formed between adjacent two stator teeth, insulating plate is integrally formed part, insulating plate includes bottom plate and multiple plug-in parts integrally formed on bottom plate, multiple plug-in parts and multiple tooth slot are plugged in one-to-one.The stator support uses integrally formed insulating plate as the insulating piece of stator core, realizes the optimization of production flow under the premise of ensuring insulation performance, saves the cumbersome paper insertion process, shortens the operation cycle, improves production efficiency and product one-time qualification rate, achieves the purposes of saving material, reducing manual work, improving production efficiency, stabilizing product quality, prolonging product service life.

Description

Technical Field

[0001] This utility model relates to the field of liquid-cooled motor technology, and in particular to a stator bracket, stator assembly and liquid-cooled motor. Background Technology

[0002] In the pursuit of high efficiency, the requirements for the insulation performance of the winding components in the production of liquid-cooled motors are also increasing. However, the insulation paper of the winding components needs to be cut and assembled into the stator core by equipment during the production process. This production rhythm is slow and inconsistent, and the insulation paper is prone to failure at high temperatures, which shortens the service life of the liquid-cooled motor. Utility Model Content

[0003] The first objective of this invention is to provide a stator support that has good insulation performance, is easy to assemble, and significantly reduces reliance on skilled operators and corresponding labor costs.

[0004] The second objective of this invention is to provide a stator assembly that has high production efficiency, good product consistency, and long service life.

[0005] The third objective of this invention is to provide a liquid-cooled motor that has high production efficiency, good product consistency, and long service life.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] This utility model discloses a stator support, comprising: a support body, a stator core, the stator core being sleeved on the support body, the stator core having a plurality of stator teeth evenly spaced along its circumference on its outer peripheral wall, and a tooth groove being formed between two adjacent stator teeth; and an insulating plate, the insulating plate being an integrally formed part, the insulating plate including a base plate and a plurality of insertion parts integrally formed on the base plate, the plurality of insertion parts being inserted into the plurality of tooth grooves one by one.

[0008] In some embodiments, the plug portion has a radially inner end near the support body and a radially outer end away from the support body, the radially outer end having arcuate portions extending toward each other at both ends along the circumferential direction of the stator core; the stator tooth includes a first portion and a second portion along the circumferential direction of the stator core, the second portion having a larger size than the first portion, the connection between the first portion and the second portion having a rounded corner, and the arcuate portion matching the rounded corner.

[0009] In some embodiments, the base plate includes an annular plate and extension plates spaced circumferentially along the annular plate, two adjacent insertion portions are connected to the two ends of the extension plates along the circumferential direction of the annular plate, and the extension plates abut against one end of the stator teeth along the axial direction of the stator core.

[0010] In some specific embodiments, each of the plug-in portions includes a first connecting plate, a second connecting plate, and a third connecting plate connected together. One end of the first connecting plate and the third connecting plate along the axial direction of the stator core is connected to two adjacent extension plates, and the second connecting plate is connected to one end of the first connecting plate and the second connecting plate near the stator core.

[0011] In some embodiments, limiting ring plates are respectively provided at both ends of the support body along its axial direction, and the two limiting ring plates respectively abut against both sides of the stator core along its axial direction.

[0012] In some embodiments, the support body has a shaft hole and a plurality of reinforcing ribs, the plurality of reinforcing ribs being arranged at intervals around the shaft hole.

[0013] In some specific embodiments, a weight-reducing hole penetrating the support body is provided between two adjacent reinforcing ribs; and / or, a weight-reducing hole penetrating the support body is provided on the reinforcing rib.

[0014] In some specific embodiments, the insulating plate is a plastic plate.

[0015] This utility model also discloses a stator assembly, which includes the stator support described above and a plurality of stator windings, wherein the plurality of stator windings are mounted on the stator support.

[0016] This utility model also discloses a liquid-cooled motor, including a rotor assembly and the stator assembly described above, wherein the rotor assembly and the stator assembly are coaxially arranged.

[0017] The stator support of this utility model has the following advantages: Since the insulating plate is an integrally molded part, in the actual assembly process, it is only necessary to first put the stator core on the support body, then align the insulating plate with the stator core along the axial direction, so that multiple plug-in parts and multiple toothed grooves are set one by one, and then insert the plug-in parts into the toothed grooves, and the base plate abuts on the stator core to complete the installation. Compared with the stator support using insulating paper in the prior art, the stator support of this utility model uses an integrally molded insulating plate as the insulating part of the stator core. Under the premise of ensuring insulation performance, the production process is optimized, the cumbersome paper insertion process is eliminated, the operation cycle is shortened, the production efficiency and the first-pass yield of products are improved, and the purpose of saving materials, reducing labor, improving production efficiency, stabilizing product quality, and extending product service life is achieved.

[0018] The beneficial effects of the stator assembly of this utility model are: due to the stator support described above, the stator assembly has high production efficiency, good product consistency, and long service life.

[0019] The beneficial effects of the liquid-cooled motor of this invention are as follows: due to the stator assembly described above, the liquid-cooled motor has high production efficiency, good product consistency, and long service life.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the stator support structure according to an embodiment of the present utility model;

[0022] Figure 2 This is an exploded structural diagram of the stator support according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the insulating plate of the stator support according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the stator assembly according to an embodiment of the present invention.

[0025] Figure label:

[0026] 100. Support body; 110. Limiting ring plate; 120. Reinforcing rib; 130. Weight reduction hole; 200. Stator core; 210. Stator tooth; 211. First part; 212. Second part; 220. Tooth groove; 300. Insulating plate; 310. Base plate; 311. Ring plate; 312. Extension plate; 320. Insertion part; 3201. Arc-shaped part; 321. First connecting plate; 322. Second connecting plate; 323. Third connecting plate; 400. Stator winding. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] In the description of this embodiment, the terms "upper," "lower," "left," "right," "front," and "rear," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0030] This utility model discloses a stator support, with reference to... Figures 1-3 As shown, the stator support includes a support body 100, a stator core 200, and an insulating plate 300. The stator core 200 is sleeved on the support body 100. The outer peripheral wall of the stator core 200 is provided with a plurality of stator teeth 210 evenly spaced along its circumference. A tooth groove 220 is formed between two adjacent stator teeth 210. The insulating plate 300 is an integrally formed part. The insulating plate 300 includes a base plate 310 and a plurality of insertion parts 320 integrally formed on the base plate 310. The plurality of insertion parts 320 are inserted into the plurality of tooth grooves 220 one by one. Understandably, since the insulating plate 300 is a one-piece molded component, in the actual assembly process, it is only necessary to first place the stator core 200 on the bracket body 100, then align the insulating plate 300 axially with the stator core 200, so that multiple insertion parts 320 and multiple toothed grooves 220 are set one by one, and then insert the insertion parts 320 into the toothed grooves 220, with the base plate 310 abutting against the stator core 200 to complete the installation. Compared with the stator bracket using insulating paper in the prior art, the stator bracket of this utility model uses a one-piece molded insulating plate 300 as the insulating component of the stator core 200. Under the premise of ensuring insulation performance, the production process is optimized, the cumbersome paper insertion process is eliminated, the operation cycle is shortened, the production efficiency and the first-pass yield of products are improved, and the purpose of saving materials, reducing labor, improving production efficiency, stabilizing product quality, and extending product service life is achieved.

[0031] It should be noted that the stator core 200 can be manufactured by stacking silicon steel sheets, or by other methods. No specific restrictions are placed on the structural form of the stator core 200 here.

[0032] In some embodiments, reference Figure 2 and Figure 3 As shown, the insertion portion 320 has a radially inner end near the support body 100 and a radially outer end away from the support body 100. The radially outer end has arc-shaped portions 3201 extending towards each other at both ends of the stator core 200 circumferentially. The stator tooth 210 includes a first portion 211 and a second portion 212. Along the circumference of the stator core 200, the size of the second portion 212 is larger than the size of the first portion 211. The connection between the first portion 211 and the second portion 212 has a rounded corner, and the arc-shaped portion 3201 matches the rounded corner. It can be understood that the arc-shaped portions 3201 extending towards each other at both ends of the radially outer end of the insertion portion 320 along the circumference of the stator core 200, and the matching of the arc-shaped portions 3201 with the rounded corners on the stator core 200, ensure stable contact between the insertion portion 320 and the sidewall of the tooth groove 220 of the stator core 200, thereby ensuring the insulation effect of the insulation plate 300.

[0033] In some embodiments, reference Figure 3 As shown, the base plate 310 includes an annular plate 311 and extension plates 312 spaced circumferentially along the annular plate 311. Two adjacent insertion portions 320 are connected to the two ends of the extension plates 312 along the circumferential direction of the annular plate 311. The extension plates 312 abut against one end of the stator teeth 210 along the axial direction of the stator core 200. It can be understood that in the actual insertion process, multiple insertion portions 320 are set with multiple tooth slots 220 one by one. When the insertion portion 320 is inserted into the tooth slot 220, the installation is completed when the extension plate 312 abuts against one end of the stator teeth 210 along the axial direction of the stator core 200. This ensures that the insulation plate 300 can be stably installed in place during the installation process and also ensures the insulation effect of the insulation plate 300 on the stator core 200. Optionally, the shape of the extension plate 312 is the same as the cross-section of the stator tooth 210 (here, the cross-section refers to the horizontal plane perpendicular to the axial direction of the stator core 200), thereby further ensuring the insulation effect of the insulation plate 300.

[0034] In some specific embodiments, reference is made to Figure 3 As shown, each plug-in portion 320 includes a first connecting plate 321, a second connecting plate 322, and a third connecting plate 323 connected together. One end of the first connecting plate 321 and the third connecting plate 323 along the axial direction of the stator core 200 is connected to two adjacent extension plates 312. The second connecting plate 322 is connected to the end of the first connecting plate 321 and the second connecting plate 322 near the stator core 200. It can be understood that each plug-in portion 320 is formed into a U-shaped structure composed of the first connecting plate 321, the second connecting plate 322, and the third connecting plate 323, which facilitates integral molding and facilitates the installation of the stator winding 400.

[0035] In some embodiments, reference Figure 2 As shown, limiting ring plates 110 are respectively provided at both ends of the support body 100 along its axial direction. The two limiting ring plates 110 abut against both sides of the stator core 200 along its axial direction. It can be understood that in the actual assembly process, after the stator core 200 is fitted onto the support body 100, the two limiting ring plates 110 can abut against both sides of the stator core 200 along its axial direction to prevent the stator core 200 from moving axially relative to the support body 100, thereby improving the installation stability of the stator core 200 and the support body 100.

[0036] In some embodiments, reference Figure 2 As shown, the support body 100 has a shaft hole and multiple reinforcing ribs 120, which are spaced apart around the shaft hole. It can be understood that providing multiple reinforcing ribs 120 on the support body 100 can improve the strength of the entire support body 100, thereby improving the strength of the entire stator support and helping to extend the service life of the stator support.

[0037] In some specific embodiments, a weight-reducing hole 130 penetrating the support body 100 is provided between two adjacent reinforcing ribs 120. It can be understood that the added weight-reducing hole 130 can reduce the weight of the support body 100 while ensuring the strength of the support body 100, thereby reducing the weight of the entire stator support.

[0038] In some specific embodiments, the reinforcing rib 120 is provided with a weight-reducing hole 130 that penetrates the support body 100. It can be understood that the added weight-reducing hole 130 can reduce the weight of the support body 100 while ensuring the strength of the support body 100, thereby reducing the weight of the entire stator support.

[0039] In some embodiments, the insulating plate 300 is a plastic plate. Plastic plates have good insulation properties and are lightweight. Using a plastic plate as the insulating plate 300 can ensure insulation performance while reducing the weight of the stator support.

[0040] This utility model also discloses a stator assembly, see reference. Figure 4 As shown, the stator assembly includes the stator support described above and multiple stator windings 400, which are mounted on the stator support. Due to the stator support described above, this stator assembly has high production efficiency, good product consistency, and a long service life. It should be noted that the specific structure of the stator windings 400 can be selected from existing stator windings 400 according to actual needs; therefore, a detailed description of the specific structure of the stator windings 400 is not necessary here.

[0041] This utility model also discloses a liquid-cooled motor, including a rotor assembly and the aforementioned stator assembly, which are coaxially arranged. Due to the aforementioned stator assembly, this liquid-cooled motor has high production efficiency, good product consistency, and a long service life. It should be noted that the specific structure of the rotor assembly can be selected from existing rotor assemblies according to actual needs; therefore, a detailed description of the specific structure of the rotor assembly is unnecessary here.

[0042] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A stator support, characterized in that, include: Support body (100), A stator core (200) is sleeved on the support body (100). The outer peripheral wall of the stator core (200) is provided with a plurality of stator teeth (210) evenly spaced along its circumference, and a tooth groove (220) is formed between two adjacent stator teeth (210). An insulating plate (300) is an integrally formed part. The insulating plate (300) includes a base plate (310) and a plurality of plug-in parts (320) integrally formed on the base plate (310). The plurality of plug-in parts (320) are plugged into the plurality of toothed grooves (220) one by one.

2. The stator support according to claim 1, characterized in that, The plug-in portion (320) has a radially inner end near the support body (100) and a radially outer end away from the support body (100), and the radially outer end has arc-shaped portions (3201) extending toward each other at both ends of the stator core (200) in the circumferential direction. The stator tooth (210) includes a first part (211) and a second part (212) along the circumference of the stator core (200). The size of the second part (212) is larger than that of the first part (211). The connection between the first part (211) and the second part (212) has a rounded corner, and the arc-shaped portion (3201) matches the rounded corner.

3. The stator support according to claim 1, characterized in that, The base plate (310) includes an annular plate (311) and extension plates (312) spaced apart circumferentially along the annular plate (311). Two adjacent insertion portions (320) are connected to the two ends of the extension plates (312) along the circumferential direction of the annular plate (311). The extension plates (312) abut against one end of the stator teeth (210) along the axial direction of the stator core (200).

4. The stator support according to claim 3, characterized in that, Each of the plug-in portions (320) includes a first connecting plate (321), a second connecting plate (322), and a third connecting plate (323) connected together. One end of the first connecting plate (321) and the third connecting plate (323) along the axial direction of the stator core (200) is connected to two adjacent extension plates (312). The second connecting plate (322) is connected to one end of the first connecting plate (321) and the second connecting plate (322) near the stator core (200).

5. The stator support according to claim 1, characterized in that, Limiting ring plates (110) are respectively provided at both ends of the support body (100) along its axial direction, and the two limiting ring plates (110) respectively abut against both sides of the stator core (200) along its axial direction.

6. The stator support according to claim 1, characterized in that, The support body (100) has a shaft hole and a plurality of reinforcing ribs (120), which are spaced apart around the shaft hole.

7. The stator support according to claim 6, characterized in that, A weight-reducing hole (130) penetrating the support body (100) is provided between two adjacent reinforcing ribs (120); and / or, a weight-reducing hole (130) penetrating the support body (100) is provided on the reinforcing rib (120).

8. The stator support according to claim 1, characterized in that, The insulating board (300) is a plastic board.

9. A stator assembly, characterized in that, The stator assembly includes a stator support as described in any one of claims 1-8 and a plurality of stator windings (400) mounted on the stator support.

10. A liquid-cooled motor, characterized in that, It includes a rotor assembly and a stator assembly as described in claim 9, wherein the rotor assembly and the stator assembly are coaxially arranged.

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