Support structure of motor stator

Abstract

The utility model relates to the technical field of motor accessories, and discloses a support structure of a motor stator, which comprises a supporting part and an extending part, a heat dissipation channel; the supporting assembly comprises a second reinforcing rib and a flow guide body, the second reinforcing rib and the flow guide body are fixedly arranged on the end face of the same side of the supporting part, the second reinforcing rib is bent towards the shaft sleeve and extends to abut against the shaft sleeve, the second reinforcing rib is fixedly connected with the shaft sleeve, and the flow guide body extends to the first heat dissipation holes and one side from the lateral heat dissipation holes. The flow guide body extends above the first heat dissipation holes and the second heat dissipation holes, airflow entering from the first heat dissipation holes and the second heat dissipation holes can be cut by the bent flow guide body, part of the airflow can be guided to blow to the shaft sleeve through the curved surface of the flow guide body, and therefore the fluidity of air around the shaft sleeve is higher; the contact area of the shaft sleeve and air is increased through the second reinforcing ribs connected with the shaft sleeve, the cooling and heat dissipation effect of the air on the shaft sleeve is improved, and the characteristics of good supporting performance, high strength and good cooling effect are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor accessories, in particular to a bracket structure of a motor stator. Background Art

[0002] The single bracket structure is directly formed by stretching the original sheet material into a bracket structure. The bracket body includes a support surface and a circumferential surface, and a bushing is installed at the center of the support surface.

[0003] The prior art discloses a single bracket structure of a motor stator (publication number: CN107947400B), which is formed by stretching the original sheet material into a bracket structure. The bracket body includes a support portion and a core installation portion. A bushing is installed at the center of the support portion, the motor shaft is installed in the bushing, and the stator core is installed on the outer wall of the core installation portion. A plurality of creases are pressed on the surface of the support portion. The pressed support portion plate is bent along the creases towards the outer wall of the bushing to support the outer wall of the bushing, and bent towards the inner wall of the core installation portion to support the inner wall of the core installation portion. The above support positions are fixed by welding.

[0004] The prior art improves the stamping method. While stamping heat dissipation holes, the scrap formed by stamping is bent to form reinforcing ribs. Since the reinforcing ribs can only laterally support the bushing or the installation portion, and when air enters through the holes formed by stamping the support portion, there is a lack of guidance for the air, resulting in poor targeted heat dissipation effect at the center position of the bushing and the support portion. The bushing is an important component to ensure the rotation of the rotating shaft. Therefore, it is necessary to provide targeted heat dissipation for the bushing and the center position of the stator.

[0005] Therefore, we propose a bracket structure of a motor stator. Content of the Utility Model

[0006] The utility model mainly solves the technical problem that there is a lack of targeted air guiding and heat dissipation at the center position of the bushing and the stator, and provides a bracket structure of a motor stator.

[0007] In order to achieve the above object, the utility model adopts the following technical solutions. A bracket structure of a motor stator includes:

[0008] A support portion and an extension portion, the extension portion and the support portion are integrally formed and form a cylindrical structure. An ear plate for installation is fixedly provided at the edge of the support portion. The ear plate has an installation hole, and a bushing for limiting the rotating shaft is fixedly installed at the end face of the extension portion;

[0009] A heat dissipation channel is opened on the wall surface of the support portion for air flow. The heat dissipation channel includes a first heat dissipation hole, a second heat dissipation hole and a lateral heat dissipation hole. The wall surface of the support portion is provided with the first heat dissipation hole and the second heat dissipation hole which are distributed in parallel. The lateral heat dissipation hole is opened on one side of the support portion where the first heat dissipation hole is located, and the lateral heat dissipation hole extends from the first heat dissipation hole towards the second heat dissipation hole;

[0010] A support component is provided on the wall surface of the support part for laterally supporting the extension part and the bushing. The support component includes a second reinforcing rib and a fluid guide. Both the second reinforcing rib and the fluid guide are fixedly arranged on the same side end face of the support part. The second reinforcing rib bends towards the bushing and extends to abut against the bushing. The second reinforcing rib is fixedly connected to the bushing. The fluid guide extends from the lateral heat dissipation hole to one side of the first heat dissipation hole, and the fluid guide can guide the air flow towards the bushing.

[0011] As a preferred embodiment of the present invention, the support component further includes a first reinforcing rib. The first reinforcing rib is fixedly arranged on one side of the support part. The first reinforcing rib bends towards the extension part and extends to abut against the extension part. The first reinforcing rib is fixedly connected to the extension part.

[0012] As a preferred embodiment of the present invention, the support part forms a circular plate. The ear plate is integrally formed with the support part. The ear plate is located on the circumferential surface of the support part. At least four ear plates are provided. The same mounting holes are provided on the wall surfaces of each ear plate. The bushing is fixedly installed at the center position of the end face of the support part.

[0013] As a preferred embodiment of the present invention, the extension part forms an annular plate. The extension part is arranged on the end face of the support part. The outer diameter of the extension part is equal to the diameter of the support part.

[0014] As a preferred embodiment of the present invention, both the first heat dissipation hole and the second heat dissipation hole are rectangular grooves. The first heat dissipation hole and the second heat dissipation hole penetrate through the support part. A plurality of first heat dissipation holes and second heat dissipation holes are arranged in an annular array on the wall surface of the support part.

[0015] As a preferred embodiment of the present invention, the lateral heat dissipation hole is an arc-shaped groove. The two ends of the lateral heat dissipation hole are respectively opposite to the first heat dissipation hole and the second heat dissipation hole.

[0016] As a preferred embodiment of the present invention, both the second reinforcing rib and the fluid guide are formed by stamping the support part. One end of the second reinforcing rib is connected to the support part. The formed second reinforcing rib by stamping is bent so that the other end of the second reinforcing rib abuts against the outer wall of the bushing. The same second reinforcing rib is provided in each second heat dissipation hole. The fluid guide is twisted by a certain angle and bent so that the fluid guide extends from the first heat dissipation hole to the second heat dissipation hole. The same fluid guide is provided in each lateral heat dissipation hole. A plurality of fluid guides guide and disperse the air flow towards the bushing.

[0017] As a preferred embodiment of the present invention, the first reinforcing rib is formed by stamping. One end of the first reinforcing rib close to the extension part is connected to the support part. The bending direction of the first reinforcing rib is opposite to the bending direction of the second reinforcing rib. The other end of the first reinforcing rib abuts against the inner wall of the extension part.

[0018] Beneficial effects

[0019] The utility model provides a bracket structure for a motor stator. It has the following beneficial effects:

[0020] 1. For the bracket structure of the motor stator, by opening the first heat dissipation holes, the second heat dissipation holes and the lateral heat dissipation holes, a hollow structure is formed on the end face of the support part, so that the fan blades can inhale air for cooling the stator and the rotor. There is a gap between the first heat dissipation holes and the second heat dissipation holes to form ribs, ensuring the overall support strength and heat dissipation effect of the support part; by stamping the second heat dissipation holes and the lateral heat dissipation holes, the second reinforcing ribs and the fluid guide are formed. By bending the second reinforcing ribs, the free ends of the second reinforcing ribs abut against the outer wall of the shaft sleeve, and the second reinforcing ribs are fixedly connected with the shaft sleeve by welding, ensuring the lateral support effect on the shaft sleeve. The shaft sleeve limits the rotation shaft more stably and has higher strength. By setting the fluid guide, the fluid guide extends above the first heat dissipation holes and the second heat dissipation holes. The air flow entering from the first heat dissipation holes and the second heat dissipation holes will be cut by the curved fluid guide, and part of the air flow will be guided to blow against the shaft sleeve through the curved surface of the fluid guide, making the air flow around the shaft sleeve stronger. The contact area between the shaft sleeve and the air is increased by the second reinforcing ribs connected with the shaft sleeve, improving the heat dissipation effect of the air on the shaft sleeve. It has the characteristics of good support, high strength and good cooling effect. By stamping the first heat dissipation holes, the second heat dissipation holes and the lateral heat dissipation holes to form the first reinforcing ribs, the second reinforcing ribs and the fluid guide respectively, the material loss in the production process can be reduced, waste can be reduced, which is beneficial to the actual production and processing.

[0021] 2. For the bracket structure of the motor stator, by stamping the first heat dissipation holes to form the first reinforcing ribs, the first reinforcing ribs form a bent plate. The end of the first reinforcing rib abuts against the inner wall of the extension part and is fixed by welding. Thus, the first reinforcing rib can support the side wall of the extension part, making the overall strength of the extension part higher, not easy to lose roundness, and ensuring the overall stress performance. Description of the drawings

[0022] Figure 1 It is one of the overall three-dimensional views of the utility model;

[0023] Figure 2 It is the second of the overall three-dimensional views of the utility model;

[0024] Figure 3 It is the first three-dimensional view of the support part of the utility model;

[0025] Figure 4 It is the second three-dimensional view of the support part of the utility model;

[0026] Figure 5 It is the installation schematic diagram of the support assembly and the support plate of the utility model.

[0027] Legend: 10, support part; 11, extension part; 12, bushing; 13, first heat dissipation hole; 14, second heat dissipation hole; 15, lateral heat dissipation hole; 20, first reinforcing rib; 21, second reinforcing rib; 22, flow guide body. Detailed implementation mode

[0028] A bracket structure of a motor stator, as Figure 1 and Figure 2 shown, includes:

[0029] A support part 10 and an extension part 11, the extension part 11 and the extension part 11 are integrally formed and form a cylindrical structure. An ear plate for installation is fixedly arranged at the edge of the support part 10. The ear plate has an installation hole. A bushing 12 for limiting the rotating shaft is fixedly installed on the end face of the extension part 11. The extension part 11 is used for installing a stator core;

[0030] As Figure 1 , Figure 2 and Figure 4 shown, a heat dissipation channel is opened on the wall surface of the support part 10 for air flow. The heat dissipation channel includes a first heat dissipation hole 13, a second heat dissipation hole 14 and a lateral heat dissipation hole 15. The first heat dissipation hole 13 and the second heat dissipation hole 14 which are distributed in parallel are opened on the wall surface of the support part 10. The lateral heat dissipation hole 15 is opened on one side of the support part 10 where the first heat dissipation hole 13 is located. The lateral heat dissipation hole 15 extends from the first heat dissipation hole 13 towards the second heat dissipation hole 14; The support part 10 forms a circular plate. The ear plate is integrally formed with the support part 10. The ear plate is located on the circumferential surface of the support part 10. At least four ear plates are provided. The wall surface of each ear plate is opened with the same installation hole. The bushing 12 is fixedly installed at the center position of the end face of the support part 10. The extension part 11 forms an annular plate. The extension part 11 is arranged on the end face of the support part 10. The outer diameter of the extension part 11 is equal to the diameter of the support part 10. Both the first heat dissipation hole 13 and the second heat dissipation hole 14 are rectangular grooves. The first heat dissipation hole 13 and the second heat dissipation hole 14 penetrate through the support part 10. A number of first heat dissipation holes 13 and second heat dissipation holes 14 are arranged in an annular array on the wall surface of the support part 10. The lateral heat dissipation hole 15 is an arc-shaped groove. The two ends of the lateral heat dissipation hole 15 are respectively opposite to the first heat dissipation hole 13 and the second heat dissipation hole 14. By opening the first heat dissipation hole 13, the second heat dissipation hole 14 and the lateral heat dissipation hole 15, a hollow structure is formed on the end face of the support part 10, so as to facilitate the fan blade to suck air for cooling the stator and the rotor. A gap is left between the first heat dissipation hole 13 and the second heat dissipation hole 14 to form a rib, ensuring the overall support strength and heat dissipation effect of the support part 10.

[0031] As Figure 3 , Figure 4 and Figure 5As shown in the figure, the support assembly is arranged on the wall surface of the support part 10 for lateral support of the extension part 11 and the bushing 12. The support assembly includes a second reinforcing rib 21 and a fluid guide 22. Both the second reinforcing rib 21 and the fluid guide 22 are fixedly arranged on the same side end face of the support part 10. The second reinforcing rib 21 bends towards the bushing 12 and extends to abut against the bushing 12. The second reinforcing rib 21 is fixedly connected to the bushing 12. The fluid guide 22 extends from the lateral heat dissipation hole 15 to one side of the first heat dissipation hole 13. The fluid guide 22 can guide the air flow towards the bushing 12. Both the second reinforcing rib 21 and the fluid guide 22 are formed by stamping the support part 10. One end of the second reinforcing rib 21 is connected to the support part 10. The formed second reinforcing rib 21 by stamping is bent so that the other end of the second reinforcing rib 21 abuts against the outer wall of the bushing 12. The same second reinforcing rib 21 is arranged in each second heat dissipation hole 14. The fluid guide 22 is twisted by a certain angle and bent so that the fluid guide 22 extends from the first heat dissipation hole 13 to the second heat dissipation hole 14 in an inhibitory manner. The same fluid guide 22 is arranged in each lateral heat dissipation hole 15. Multiple fluid guides 22 guide and disperse the air flow towards the bushing 12. In this solution, the second reinforcing rib 21 and the fluid guide 22 are formed by stamping the second heat dissipation hole 14 and the lateral heat dissipation hole 15. By bending the second reinforcing rib 21, the free end of the second reinforcing rib 21 abuts against the outer wall of the bushing 12. The second reinforcing rib 21 is fixedly connected to the bushing 12 by welding, ensuring the lateral support effect on the bushing 12. The bushing 12 limits the rotation shaft more stably and has higher strength. By arranging the fluid guide 22, since the fluid guide 22 extends above the first heat dissipation hole 13 and the second heat dissipation hole 14, the air flow entering from the first heat dissipation hole 13 and the second heat dissipation hole 14 will be cut by the bent fluid guide 22. Part of the air flow will pass through the curved surface of the fluid guide 22 and be guided to blow towards the bushing 12, making the air fluidity around the bushing 12 stronger. The contact area between the bushing 12 and the air is increased by the second reinforcing rib 21 connected to the bushing 12, improving the cooling and heat dissipation effect of the air on the bushing 12. It has the characteristics of good support, high strength and good cooling effect. By stamping the first heat dissipation hole 13, the second heat dissipation hole 14 and the lateral heat dissipation hole 15 respectively to form the first reinforcing rib 20, the second reinforcing rib 21 and the fluid guide 22, it can reduce the material loss in the production process, reduce waste, and is beneficial to the actual production and processing.

[0032] As Figure 5As shown in the figure, the support component further includes a first reinforcing rib 20. The first reinforcing rib 20 is fixedly arranged on one side of the support portion 10. The first reinforcing rib 20 bends towards the extension portion 11 and extends to abut against the extension portion 11. The first reinforcing rib 20 is fixedly connected to the extension portion 11. The first reinforcing rib 20 is formed by stamping. One end of the first reinforcing rib 20 close to the extension portion 11 is connected to the support portion 10. The bending direction of the first reinforcing rib 20 is opposite to that of the second reinforcing rib 21. The other end of the first reinforcing rib 20 abuts against the inner wall of the extension portion 11. As a supplement to the above solution, the first reinforcing rib 20 is formed by stamping the first heat dissipation hole 13. The first reinforcing rib 20 forms a bent plate. The end of the first reinforcing rib 20 abuts against the inner wall of the extension portion 11 and is fixed by welding. Thus, the first reinforcing rib 20 can support the side wall of the extension portion 11, making the overall strength of the extension portion 11 higher and not easily losing its roundness.

[0033] The working principle of the present utility model: The first heat dissipation hole 13, the second heat dissipation hole 14 and the lateral heat dissipation hole 15 are opened, so that the end face of the support portion 10 forms a hollow structure, which is convenient for the fan blade to suck air for cooling the stator and the rotor. Stamping the second heat dissipation hole 14 and the lateral heat dissipation hole 15 forms the second reinforcing rib 21 and the fluid guide 22. By bending the second reinforcing rib 21, the free end of the second reinforcing rib 21 abuts against the outer wall of the shaft sleeve 12. The second reinforcing rib 21 is fixedly connected to the shaft sleeve 12 by welding. The fluid guide 22 extends above the first heat dissipation hole 13 and the second heat dissipation hole 14. The air flow entering from the first heat dissipation hole 13 and the second heat dissipation hole 14 will be cut by the curved fluid guide 22. Part of the air flow will pass through the curved surface of the fluid guide 22 and be guided to blow towards the shaft sleeve 12, making the air flow around the shaft sleeve 12 stronger. The second reinforcing rib 21 connected to the shaft sleeve 12 increases the contact area between the shaft sleeve 12 and the air, improving the cooling and heat dissipation effect of the air on the shaft sleeve 12. The first reinforcing rib 20 is formed by stamping the first heat dissipation hole 13. The first reinforcing rib 20 forms a bent plate. The end of the first reinforcing rib 20 abuts against the inner wall of the extension portion 11 and is fixed by welding. Thus, the first reinforcing rib 20 can support the side wall of the extension portion 11, ensuring the overall support strength and stress performance.

[0034] The above shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A support structure for a motor stator, characterized in that, Including: A support part (10) and an extension part (11), the extension part (11) and the extension part (11) are integrally formed and form a cylindrical structure. An ear plate for installation is fixedly provided at the edge of the support part (10), the ear plate has a mounting hole, and a bushing (12) for limiting a rotating shaft is fixedly installed on the end face of the extension part (11); A heat dissipation channel is opened on the wall surface of the support part (10) for air flow. The heat dissipation channel includes a first heat dissipation hole (13), a second heat dissipation hole (14) and a lateral heat dissipation hole (15). The wall surface of the support part (10) is provided with the first heat dissipation hole (13) and the second heat dissipation hole (14) distributed in parallel. The lateral heat dissipation hole (15) is opened on one side of the support part (10) where the first heat dissipation hole (13) is located, and the lateral heat dissipation hole (15) extends from the first heat dissipation hole (13) towards the second heat dissipation hole (14); A support assembly is arranged on the wall surface of the support part (10) for laterally supporting the extension part (11) and the bushing (12). The support assembly includes a second reinforcing rib (21) and a fluid guide (22). The second reinforcing rib (21) and the fluid guide (22) are both fixedly arranged on the same side end face of the support part (10). The second reinforcing rib (21) bends towards the bushing (12) and extends to abut against the bushing (12), and the second reinforcing rib (21) is fixedly connected to the bushing (12). The fluid guide (22) extends from the lateral heat dissipation hole (15) to one side of the first heat dissipation hole (13), and the fluid guide (22) can guide the air flow towards the bushing (12).

2. The bracket structure of the motor stator according to claim 1, characterized in that: The support assembly further includes a first reinforcing rib (20). The first reinforcing rib (20) is fixedly arranged on one side of the support part (10), the first reinforcing rib (20) bends towards the extension part (11) and extends to abut against the extension part (11), and the first reinforcing rib (20) is fixedly connected to the extension part (11).

3. The bracket structure of the motor stator according to claim 1, characterized in that: The support part (10) forms a circular plate, the ear plate is integrally formed with the support part (10), the ear plate is located on the circumferential surface of the support part (10), at least four ear plates are provided, and the same mounting holes are opened on the wall surfaces of each ear plate. The bushing (12) is fixedly installed at the center position of the end face of the support part (10).

4. The bracket structure of the motor stator according to claim 1, characterized in that: The extension part (11) forms an annular plate, the extension part (11) is arranged on the end face of the support part (10), and the outer diameter of the extension part (11) is equal to the diameter of the support part (10).

5. The bracket structure of the motor stator according to claim 1, characterized in that: Both the first heat dissipation hole (13) and the second heat dissipation hole (14) are rectangular grooves, the first heat dissipation hole (13) and the second heat dissipation hole (14) penetrate through the support part (10), and a plurality of first heat dissipation holes (13) and second heat dissipation holes (14) are arranged in an annular array on the wall surface of the support part (10).

6. The bracket structure of the motor stator according to claim 1, characterized in that: The lateral heat dissipation hole (15) is an arc-shaped groove, and the two ends of the lateral heat dissipation hole (15) are respectively opposite to the first heat dissipation hole (13) and the second heat dissipation hole (14).

7. The bracket structure of the motor stator according to claim 1, characterized in that: The second reinforcing rib (21) and the fluid guide (22) are both formed by stamping the support portion (10). One end of the second reinforcing rib (21) is connected to the support portion (10). The formed second reinforcing rib (21) by stamping is bent so that the other end of the second reinforcing rib (21) abuts against the outer wall of the bushing (12). The same second reinforcing rib (21) is provided in each second heat dissipation hole (14). The fluid guide (22) is twisted by a certain angle and bent so that the fluid guide (22) extends from the first heat dissipation hole (13) into the second heat dissipation hole (14). The same fluid guide (22) is provided in each lateral heat dissipation hole (15). The plurality of fluid guides (22) guide and disperse the air flow towards the bushing (12).

8. The bracket structure of the motor stator according to claim 2, wherein: The first reinforcing rib (20) is formed by stamping. One end of the first reinforcing rib (20) close to the extension portion (11) is connected to the support portion (10). The bending direction of the first reinforcing rib (20) is opposite to that of the second reinforcing rib (21). The other end of the first reinforcing rib (20) abuts against the inner wall of the extension portion (11).

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