Heat dissipation installation structure of motor and volute motor using same

Abstract

The utility model discloses a heat dissipation installation structure of a motor and a volute motor using the same, the heat dissipation installation structure comprises a motor control board installed on a motor casing, the back of the motor control board is fixedly provided with a heat conduction metal plate, and the motor control board is installed on the motor casing through the heat conduction metal plate in an insulation manner; wherein the motor shaft penetrates through the center of the motor control panel and the center of the heat conduction metal plate, the motor shaft is installed and connected with the bearing seat in a relative rotation mode through a bearing, and the motor control panel and the heat conduction metal plate are installed and connected to the periphery of the bearing seat in a sleeving mode; according to the utility model, the heat dissipation effect of the motor is improved, and the temperature rise problem of the motor body and the motor control board can be significantly reduced.

Description

Technical Field

[0001] The utility model belongs to the field of motor heat dissipation structures, and particularly relates to a heat dissipation installation structure of a motor. The utility model also relates to a volute motor applying the heat dissipation installation structure. Background Art

[0002] With the increase of the speed and power of brushless motors, the heat generation problem of motor control boards has become more and more serious. In view of the temperature rise problem of motor control boards, most current solutions are to improve by adding cooling fans, applying thermal conductive silica gel, etc.

[0003] However, the applicant has found that the improvement solutions of adding cooling fans or applying thermal conductive silica gel will either reduce the motor efficiency or increase the motor cost, which will affect the applicability of the motor.

[0004] Therefore, the applicant hopes to seek technical solutions to solve the above technical problems. Summary of the Invention

[0005] In view of this, the purpose of the utility model is to provide a heat dissipation installation structure of a motor and a volute motor applying the same, which improves the heat dissipation effect of the motor and can significantly improve and reduce the temperature rise problems of the motor body and the motor control board.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A heat dissipation installation structure of a motor, including a motor control board installed on a motor housing. A heat conductive metal plate is fixedly provided on the back surface of the motor control board, and the motor control board is insulated and installed on the motor housing through the heat conductive metal plate. Among them, the motor shaft penetrates through the centers of the motor control board and the heat conductive metal plate respectively. The motor shaft is rotatably installed and connected with a bearing seat through a bearing, and the motor control board and the heat conductive metal plate are installed and sleeved on the outer periphery of the bearing seat.

[0008] Preferably, an insulating glue layer is coated between the heat conductive metal plate and the motor control board.

[0009] Preferably, the thickness of the insulating glue layer is 0.15 - 0.35 mm.

[0010] Preferably, the heat conductive metal plate is made of a galvanized metal plate.

[0011] Preferably, the motor control board and the heat conductive metal plate are installed and sleeved on the outer periphery of the bearing seat in an interference fit manner.

[0012] seat.

[0013] Preferably, a plurality of screw holes are respectively provided on the motor control board and the heat-conducting metal plate, and the motor control board, the heat-conducting metal plate and the motor housing are fixedly installed and connected through the installation and cooperation of the screw holes and the screws.

[0014] Preferably, a plurality of positioning posts are provided on the heat-conducting metal plate, and the heat-conducting metal plate is limited and cooperated with the motor control board through the positioning posts.

[0015] Preferably, a volute motor includes a motor housing in the shape of a volute, a motor shaft fixedly installed as a whole with a rotor assembly, and a stator assembly, and adopts the heat dissipation and installation structure of the motor as described above.

[0016] Preferably, the stator assembly is located on the inner circumference of the rotor assembly and sleeved on the outer circumference of the motor shaft, and is limited and installed in the limiting hole of the motor control board through a stator limiting portion.

[0017] Preferably, the motor housing includes an upper motor housing unit and a lower motor housing unit installed as a whole, wherein the motor shaft extends into the interior of the motor housing and is fixedly installed and connected with a dynamic impeller.

[0018] The present application proposes to provide a heat-conducting metal plate structure on the back of the motor control board. Through this heat-conducting metal plate structure, the heat dissipation area of the motor control board can be effectively increased, so that the thermal equilibrium temperature of the motor control board is relatively low, thereby ensuring that the motor can operate effectively for a long time. At the same time, the heat-conducting metal plate proposed by the present application is installed and sleeved on the outer circumference of the bearing seat of the motor shaft, and the heat generated during the high-speed rotation of the bearing of the motor shaft can be quickly conducted to the heat-conducting metal plate, ensuring that the temperature of the bearing of the motor shaft will not be too high, further improving the heat dissipation effect of the motor. The heat dissipation and installation structure proposed by the present application is particularly suitable for being used as the heat dissipation structure of a volute motor, and can significantly improve and reduce the temperature rise problem of the motor body and the motor control board. Description of the Drawings

[0019] Figure 1 is a cross-sectional view of a volute motor under the specific embodiment of the present invention;

[0020] Figure 2 is Figure 1 a partial structural schematic diagram in

[0021] Figure 3 is Figure 1 the exploded structural schematic diagram of

[0022] Figure 4 is the structural schematic diagram of the heat-conducting metal plate under the specific embodiment of the present invention. Detailed Embodiment

[0023] An embodiment of the utility model discloses a heat dissipation and installation structure of a motor, which includes a motor control board installed on a motor housing. A heat-conducting metal plate is fixedly provided on the back of the motor control board, and the motor control board is insulated and installed on the motor housing through the heat-conducting metal plate. Among them, the centers of the motor control board and the heat-conducting metal plate respectively penetrate and install a motor shaft. The motor shaft is installed and connected through a bearing to a bearing seat for relative rotation, and the motor control board and the heat-conducting metal plate are installed and sleeved on the outer periphery of the bearing seat.

[0024] In order to enable those skilled in the art to better understand the technical solutions in the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, a volute motor includes a motor housing 1 in a volute shape, a motor shaft 3 fixedly installed as a whole with a rotor assembly 2, and a stator assembly 4. Preferably, in this embodiment, the stator assembly 4 is located inside the rotor assembly 2 and sleeved on the outer periphery of the motor shaft 3, and is limited and installed in a limit hole 61 of a motor control board 6 through a stator limit part 5. The motor housing 1 includes an upper motor housing unit 1a and a lower motor housing unit 1b installed as a whole. Among them, the motor shaft 3 extends into the interior of the motor housing 1 and is fixedly installed and connected to a dynamic impeller 7.

[0026] In this embodiment, the volute motor adopts the heat dissipation and installation structure of the motor described as follows:

[0027] A heat dissipation and installation structure of a motor includes a motor control board 6 installed on a motor housing 1. A heat-conducting metal plate 8 is fixedly provided on the back of the motor control board 6, and the motor control board 6 is insulated and installed on the motor housing 1 through the heat-conducting metal plate 8. Among them, the centers of the motor control board 6 and the heat-conducting metal plate 8 respectively penetrate and install a motor shaft 3. The motor shaft 3 is installed and connected through a bearing 91 to a bearing seat 92 for relative rotation, and the motor control board 6 and the heat-conducting metal plate 8 are installed and sleeved on the outer periphery of the bearing seat. Preferably, in this embodiment, in order to further facilitate the heat conduction effect and ensure the strength of the installation structure, the heat-conducting metal plate 8 is made of a galvanized metal plate. Preferably, in this embodiment, the motor control board 6 and the heat-conducting metal plate 8 are installed and sleeved on the outer periphery of the bearing seat 92 in an interference fit manner.

[0028] Preferably, in the present embodiment, an insulating adhesive layer 10 is coated between the heat-conducting metal plate 8 and the motor control board 6. The insulating adhesive layer 10 can ensure the electrical performance of the motor control board 6 while effectively bonding the motor control board 6 and the heat-conducting metal plate 8, resulting in better heat dissipation effect. Further preferably, in the present embodiment, the thickness of the insulating adhesive layer 10 is 0.15 - 0.35 mm.

[0029] Preferably, a plurality of screw holes 20 are respectively provided on the motor control board 6 and the heat-conducting metal plate 8. The fixed installation connection between the motor control board 6, the heat-conducting metal plate 8 and the motor housing 1 is realized through the installation cooperation of the screw holes 20 and the screws 21, which can further ensure the installation strength of the motor. Preferably, a plurality of positioning columns 30 are provided on the heat-conducting metal plate 8. The limiting cooperation with the motor control board 6 is realized through the positioning columns 30, which can further increase the strength of the overall structure of the motor and suppress the vibration and noise during the operation of the motor.

[0030] This embodiment proposes to provide a heat-conducting metal plate 8 structure on the back of the motor control board 6. Through this heat-conducting metal plate 8 structure, the heat dissipation area of the motor control board 6 can be effectively increased, so that the thermal equilibrium temperature of the motor control board 6 is relatively low, thereby ensuring the long-term and effective operation of the motor. At the same time, the heat-conducting metal plate 8 proposed in this embodiment is installed and sleeved on the outer periphery of the bearing seat of the motor shaft 3, and the heat generated during the high-speed rotation of the bearing of the motor shaft 3 can be quickly conducted to the heat-conducting metal plate 8, ensuring that the temperature of the bearing of the motor shaft 3 will not be too high, and further improving the heat dissipation effect of the motor. The heat dissipation installation structure proposed in this embodiment is particularly suitable for use as the heat dissipation structure of a volute motor, and can significantly improve and reduce the temperature rise problem of the volute motor (including the motor control board 6).

[0031] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0032] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only includes an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A heat dissipation and installation structure for a motor, comprising a motor control board installed on a motor housing, characterized in that, A heat-conducting metal plate is fixedly provided on the back surface of the motor control board, and the motor control board is insulated and installed on the motor housing through the heat-conducting metal plate; wherein, the motor shaft penetrates through the centers of the motor control board and the heat-conducting metal plate respectively, and the motor shaft is relatively rotatably installed and connected to the bearing seat through a bearing, and the motor control board and the heat-conducting metal plate are installed and sleeved on the outer periphery of the bearing seat.

2. The heat dissipation and installation structure of the motor according to claim 1, wherein An insulating adhesive layer is coated between the heat-conducting metal plate and the motor control board.

3. The heat dissipation and installation structure of the motor according to claim 2, characterized in that, The thickness of the insulating adhesive layer is 0.15 - 0.35 mm.

4. The heat dissipation and installation structure of the motor according to claim 1, characterized in that, The heat-conducting metal plate is made of a galvanized metal plate.

5. The heat dissipation and installation structure of the motor according to claim 1, characterized in that, The motor control board and the heat-conducting metal plate are installed and sleeved on the outer periphery of the bearing seat in an interference fit manner.

6. The heat dissipation and installation structure of the motor according to claim 1, characterized in that, A plurality of screw holes are respectively provided on the motor control board and the heat-conducting metal plate, and the fixed installation connection between the motor control board, the heat-conducting metal plate and the motor housing is realized through the installation cooperation of the screw holes and the screws.

7. The heat dissipation and installation structure of the motor according to claim 1 or 6, characterized in that, A plurality of positioning posts are provided on the heat-conducting metal plate, and the limiting cooperation with the motor control board is realized through the positioning posts.

8. A volute motor, comprising a motor housing in the shape of a volute, a motor shaft fixedly installed integrally with a rotor assembly, and a stator assembly, characterized in that, The heat dissipation installation structure of the motor according to any one of claims 1 - 7 is adopted.

9. The volute motor according to claim 8, wherein, The stator assembly is located on the inner periphery of the rotor assembly and sleeved on the outer periphery of the motor shaft, and is limited and installed in the limiting holes of the motor control board through stator limiting parts.

10. The volute motor according to claim 8, characterized in that, The motor housing includes an upper motor housing unit and a lower motor housing unit installed as a whole, wherein the motor shaft extends into the interior of the motor housing and is fixedly installed and connected to the impeller.

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