Efficient radiating fin structure of brushless motor controller

Abstract

The utility model relates to the technical field of brushless motors, in particular to an efficient radiating fin structure of a brushless motor controller, which comprises a motor shell, a controller body is arranged on the inner wall of the upper end of the motor shell, and a plurality of first radiating fins are fixedly connected to the outer side wall of the motor shell. The upper ends of the first heat dissipation fins are fixedly connected with clamping strips used for positioning and installing the auxiliary structure, the upper ends of the clamping strips are provided with installing grooves, installing strips are inserted into the installing grooves, the upper ends of the installing strips are fixedly connected with second heat dissipation fins for increasing the heat dissipation area, and the two sides of each second heat dissipation fin are both provided with limiting plates. The limiting plate is used for limiting and fixing the clamping strip and the mounting strip, the lower end of the limiting plate is fixedly connected with a guide plate, the upper end of the limiting plate is fixedly connected with a handle, the second heat dissipation fins can be additionally arranged at the upper ends of the first heat dissipation fins, and therefore the heat dissipation area is increased, and the heat dissipation effect on the more heating area of the controller body is ensured.

Description

Technical Field

[0001] This utility model relates to the field of brushless motor technology, specifically to a high-efficiency heat dissipation fin structure for a brushless motor controller. Background Technology

[0002] A brushless motor consists of a motor body and a controller. The controller receives start, stop, and braking signals from the motor to control its operation. However, the controller is located inside the brushless motor and contains numerous electronic devices. These devices generate a significant amount of heat during operation, which must be dissipated through the motor casing promptly to prevent overheating and damage to the controller.

[0003] Existing brushless motors mainly dissipate heat through heat sink fins. However, the heat sink fins of existing brushless motors cannot be changed after production. In order to control the size and facilitate transportation, the heat sink fins are not very large, resulting in low heat dissipation efficiency of brushless motors in hot areas. The controller area generates a lot of heat, and different parts of the brushless motor generate different amounts of heat, resulting in poor heat dissipation. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency heat dissipation fin structure for a brushless motor controller, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency heat dissipation fin structure for a brushless motor controller, including a motor housing, a controller body provided on the upper inner wall of the motor housing, and a plurality of first heat dissipation fins fixedly connected to the outer outer wall of the motor housing, wherein a snap-fit ​​strip for positioning and installation auxiliary structure is fixedly connected to the upper end of the first heat dissipation fins.

[0006] The upper end of the snap-fit ​​strip is provided with a mounting groove, and a mounting strip is inserted into the mounting groove. The upper end of the mounting strip is fixedly connected with a second heat dissipation fin to increase the heat dissipation area.

[0007] The second heat dissipation fin has a limiting plate on both sides. The limiting plate is used to limit and fix the snap-fit ​​strip and the mounting strip. The lower end of the limiting plate is fixedly connected to a guide plate, and the upper end of the limiting plate is fixedly connected to a handle.

[0008] Preferably, the openings on both sides of the mounting groove are arc-shaped, the lower inner walls on both sides of the mounting groove are vertical, and the bottom of the mounting groove is arc-shaped.

[0009] Preferably, the mounting strip and the second heat dissipation fins form a T-shaped structure, the limiting plate is a U-shaped structure, and limiting plates are provided on both sides of the mounting strip.

[0010] Preferably, both sides of the snap-fit ​​strip are vertical structures, the two sides of the limiting plate abut against the vertical surfaces of the snap-fit ​​strip, and the lower ends of the two sides of the limiting plate are fixedly connected to guide plates, which are arc-shaped structures.

[0011] Preferably, the upper ends of the snap-fit ​​strip are provided with fixing grooves on both sides, and a fixing piece is fixedly connected to the inner wall of the limiting plate. The fixing piece has an arc-shaped structure and is an elastic iron piece. The fixing piece is snapped into the fixing groove.

[0012] Preferably, a limiting protrusion is fixedly connected to the lower middle end face of the limiting plate, and a limiting groove is provided at the upper end of the mounting strip, with the limiting protrusion inserted into the limiting groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are: a snap-fit ​​strip is provided at the upper end of the first heat dissipation fin, so that the second heat dissipation fin can be inserted into the snap-fit ​​strip, which greatly increases the heat dissipation area and can control the installation position of the second heat dissipation fin. The second heat dissipation fin is inserted into the controller and other areas with large heat, ensuring the heat dissipation effect and enabling the brushless motor to have a good heat dissipation effect in hot areas. Attached Figure Description

[0014] Figure 1 This is a schematic diagram showing the connection between the first and second heat dissipation fins.

[0015] Figure 2 This is a three-dimensional diagram showing the connection between the first heat dissipation fin and the connecting strip.

[0016] Figure 3 This is a schematic diagram of the three-dimensional connection of the limiting plate.

[0017] Figure 4 This is an enlarged view of point A.

[0018] In the figure: 1 Motor housing, 101 Controller body, 2 First heat dissipation fin, 3 Second heat dissipation fin, 4 Connecting strip, 5 Mounting slot, 6 Fixing slot, 7 Limiting plate, 8 Handle, 9 Guide plate, 10 Limiting protrusion, 11 Fixing piece, 12 Limiting groove, 13 Mounting strip. Detailed Implementation

[0019] To enhance understanding of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described and introduced below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this utility model, not all embodiments, and are not intended to limit the embodiments in any way. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a high-efficiency heat dissipation fin structure for a brushless motor controller, including a motor housing 1, a controller body 101 on the upper inner wall of the motor housing 1, and multiple first heat dissipation fins 2 fixedly connected to the outer outer wall of the motor housing 1. A snap-fit ​​strip 4 for positioning and installation auxiliary structure is fixedly connected to the upper end of the first heat dissipation fins 2. An installation groove 5 is provided at the upper end of the snap-fit ​​strip 4. An installation strip 13 is inserted into the installation groove 5. A second heat dissipation fin 3 for increasing the heat dissipation area is fixedly connected to the upper end of the installation strip 13. Limiting plates 7 are provided on both sides of the second heat dissipation fin 3. The limiting plates 7 are used to limit and fix the snap-fit ​​strip 4 and the installation strip 13. A guide plate 9 is fixedly connected to the lower end of the limiting plate 7, and a handle 8 is fixedly connected to the upper end of the limiting plate 7.

[0021] The two openings of the mounting groove 5 are arc-shaped to facilitate the insertion of the mounting strip 13 into the mounting groove 5. The lower inner walls of the two sides of the mounting groove 5 are vertical to limit the mounting strip 13. The bottom of the mounting groove 5 is arc-shaped. The mounting strip 13 and the second heat dissipation fin 3 form a T-shaped structure. The limiting plate 7 is a U-shaped structure. Limiting plates 7 are provided on both sides of the mounting strip 13. The limiting plates 7 limit and fix the mounting strip 13 and the snap-fit ​​strip 4.

[0022] Both sides of the snap-fit ​​strip 4 are vertical structures, which restrict the limiting plate 7. The two sides of the limiting plate 7 abut against the vertical surfaces of the two sides of the snap-fit ​​strip 4. The lower ends of the two sides of the limiting plate 7 are fixedly connected to the guide plate 9. The guide plate 9 has an arc-shaped structure. When the limiting plate 7 is inserted into the snap-fit ​​strip 4, the guide plate 9 can guide the insertion of the limiting plate 7.

[0023] The upper end of the snap-fit ​​strip 4 is provided with fixing grooves 6 on both sides. The inner wall of the limiting plate 7 is fixedly connected with a fixing piece 11. The fixing piece 11 has an arc-shaped structure and is an elastic iron piece. The fixing piece 11 is snapped into the fixing groove 6. When the limiting plate 7 is inserted into the snap-fit ​​strip 4, the fixing piece 11 can deform and thus snap into the fixing groove 6, fixing the limiting plate 7 onto the snap-fit ​​strip 4.

[0024] A limiting protrusion 10 is fixedly connected to the lower middle end face of the limiting plate 7, and a limiting groove 12 is provided at the upper end of the mounting strip 13. The limiting protrusion 10 is inserted into the limiting groove 12 to limit the installation of the limiting plate 7 and the mounting strip 13, thereby preventing the second heat dissipation fin 3 from shifting.

[0025] When the brushless motor is located in a hot area, the second heat dissipation fin 3 is inserted into the snap-fit ​​strip 4 at the upper end of the first heat dissipation fin 2. Then, the limiting plate 7 is inserted into both sides of the mounting strip 13 to limit and fix the mounting strip 13 and the snap-fit ​​strip 4. The position for inserting the second heat dissipation fin 3 can be selected, and the second heat dissipation fin 3 can be inserted into a location with high heat, such as the controller body 101.

[0026] Although embodiments of the present invention have been shown and described, it should be emphasized that the above description is merely an introduction and description of the usage of the embodiments of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art will understand that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency heat dissipation fin structure for a brushless motor controller, comprising a motor housing (1), characterized in that: The upper inner wall of the motor housing (1) is provided with a controller body (101), and a plurality of first heat dissipation fins (2) are fixedly connected to the outer wall of the motor housing (1). The upper end of the first heat dissipation fins (2) is fixedly connected with a snap-fit ​​strip (4) for positioning and installing auxiliary structures. The upper end of the snap-fit ​​strip (4) is provided with a mounting groove (5), and a mounting strip (13) is inserted into the mounting groove (5). The upper end of the mounting strip (13) is fixedly connected with a second heat dissipation fin (3) to increase the heat dissipation area. The second heat dissipation fin (3) is provided with limiting plates (7) on both sides. The limiting plates (7) are used to limit and fix the snap-fit ​​strip (4) and the mounting strip (13). The lower end of the limiting plate (7) is fixedly connected to a guide plate (9), and the upper end of the limiting plate (7) is fixedly connected to a handle (8).

2. The high-efficiency heat dissipation fin structure for a brushless motor controller according to claim 1, characterized in that: The two openings of the mounting groove (5) are arc-shaped, the lower inner walls of the two sides of the mounting groove (5) are vertical, and the bottom of the mounting groove (5) is arc-shaped.

3. The high-efficiency heat dissipation fin structure for a brushless motor controller according to claim 1, characterized in that: The mounting strip (13) and the second heat dissipation fin (3) form a T-shaped structure, the limiting plate (7) is a U-shaped structure, and the mounting strip (13) is provided with limiting plates (7) on both sides.

4. The high-efficiency heat dissipation fin structure for a brushless motor controller according to claim 1, characterized in that: Both sides of the snap-fit ​​strip (4) are vertical structures. The two sides of the limiting plate (7) abut against the vertical surfaces of the snap-fit ​​strip (4). The lower ends of the two sides of the limiting plate (7) are fixedly connected to the guide plate (9), which is an arc-shaped structure.

5. The high-efficiency heat dissipation fin structure for a brushless motor controller according to claim 1, characterized in that: The upper ends of the snap-fit ​​strip (4) are provided with fixing grooves (6) on both sides. The inner wall of the limiting plate (7) is fixedly connected with a fixing piece (11). The fixing piece (11) is an arc-shaped structure and is an elastic iron piece. The fixing piece (11) is snapped into the fixing groove (6).

6. The high-efficiency heat dissipation fin structure for a brushless motor controller according to claim 1, characterized in that: The lower middle end face of the limiting plate (7) is fixedly connected to a limiting protrusion (10), and the upper end of the mounting strip (13) is provided with a limiting groove (12), and the limiting protrusion (10) is inserted into the limiting groove (12).

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