Motor drive controller active heat dissipation structure

Abstract

This utility model belongs to the field of controller heat dissipation technology, specifically relating to an active heat dissipation structure for a motor drive controller. It includes a heat sink body with several heat sink fins at its bottom. A heat dissipation groove is formed between every two adjacent heat sink fins, and several heat dissipation columns are provided within each heat dissipation groove. The center of each heat sink fin is recessed downwards to form a fan mounting space, into which the fan is embedded and fixed to the heat sink body. The advantages of this utility model are: it enables the controller to dissipate heat normally even when installed in a poorly ventilated environment, reduces the controller's operating temperature, improves the controller's reliability, and enhances the controller's durability under heavy load conditions.

Description

Technical Field

[0001] This utility model belongs to the field of controller heat dissipation technology, specifically relating to an active heat dissipation structure for a motor drive controller. Background Technology

[0002] The existing controller uses passive air cooling, which has high environmental requirements and must be installed in a well-ventilated location. When the air is not circulating in the installation location, the controller will have a high temperature during operation, which reduces the reliability and stability of the controller's electrical components. Utility Model Content

[0003] The purpose of this invention is to address the above-mentioned problems by providing an active heat dissipation structure for a motor drive controller.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An active heat dissipation structure for a motor drive controller includes a heat sink body with several heat sinks at the bottom. A heat dissipation groove is formed between every two adjacent heat sinks. Several heat dissipation columns are provided in each heat dissipation groove. The middle of the heat sinks is recessed downward to form a fan mounting space. The fan is embedded in the fan mounting space and fixed to the heat sink body.

[0006] In the above-mentioned active heat dissipation structure of the motor drive controller, the width of the heat dissipation slot gradually increases from the end closest to the fan to the other end.

[0007] In the above-mentioned active cooling structure of the motor drive controller, the heat dissipation columns in each heat dissipation slot are evenly spaced, and the height of the heat dissipation columns in each heat dissipation slot gradually increases from the end closest to the fan to the other end.

[0008] In the above-mentioned active heat dissipation structure for motor drive controller, the heat sink is arc-shaped.

[0009] In the above-mentioned active cooling structure for motor drive controller, when the fan is embedded in the fan mounting space, the height of the top of the fan is not higher than the height of the top of the heat sink.

[0010] In the above-mentioned active cooling structure for the motor drive controller, a fan protective cover is installed on the top of the fan.

[0011] In the above-mentioned active heat dissipation structure of the motor drive controller, a controller connection slot is also provided on the side of the heat sink body opposite to the heat sink.

[0012] In the above-mentioned active cooling structure for motor drive controller, each heat sink is provided with a fan mounting step, and the fan mounting steps of several heat sinks enclose a fan mounting space.

[0013] In the above-mentioned active heat dissipation structure of the motor drive controller, a mounting handle is provided at each end of the heat sink body, and there is a gap between the inner wall of the mounting handle and the end of the adjacent heat sink for air flow.

[0014] In the above-mentioned active heat dissipation structure of the motor drive controller, the heat sink body, heat sink fins and heat sink column are integrally formed and are made of aluminum alloy.

[0015] Compared with existing technologies, the advantages of this invention are: it enables the controller to dissipate heat normally when installed in a poorly ventilated environment, reduces the controller's operating temperature, improves the controller's reliability, and enhances the controller's durability under heavy load conditions. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the structure after removing the fan from the utility model.

[0018] Figure 3 yes Figure 2 A diagram from another direction.

[0019] Figure 4 yes Figure 3 CC section view.

[0020] Figure 5 yes Figure 2 Enlarged view of point A.

[0021] Figure 6 yes Figure 1 A diagram from another direction.

[0022] In the diagram: 1. Heat sink body; 2. Heat sink slot; 3. Heat sink column; 4. Fan mounting space; 5. Fan; 6. Fan protective cover; 7. Controller connection slot; 8. Fan mounting step; 9. Mounting handle; 10. Gap; 11. Threaded post 7a. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1-3 As shown, an active heat dissipation structure for a motor drive controller includes a heat sink body 1. The bottom of the heat sink body 1 is provided with several heat sinks 2. A heat dissipation groove 3 is formed between every two adjacent heat sinks 2. Several heat dissipation columns 4 are provided in each heat dissipation groove 3. The heat dissipation columns 4 are usually cylindrical, but can also be other shapes. The middle of the several heat sinks 2 is recessed downward to form a fan mounting space 5. A fan 6 is embedded in the fan mounting space 5 and fixed to the heat sink body 1.

[0025] It should be noted that the heat sinks 2 here are actually arranged around the fan 6. The heat sinks 2 are arranged in a dense pattern around the fan 6. The specific number of heat sinks 2 is determined according to the size of the fan 6 and the size of the heat sink body 1. Those skilled in the art can make conventional adjustments. Generally speaking, the number of heat sinks 2 is not less than 20.

[0026] In a preferred embodiment, the width of the heat sink 3 gradually increases from one end near the fan 6 to the other. More preferably, it combines... Figure 4-5 As shown, the heat dissipation columns 4 in each heat dissipation slot 3 are evenly spaced, and the height of the heat dissipation columns 4 in each heat dissipation slot 3 gradually increases from the end closest to the fan 6 to the other end. This is because the closer the heat dissipation slot 3 is to the fan 6, the narrower the heat dissipation slot 3 becomes, the greater the air velocity in the heat dissipation slot 3, and the faster the heat dissipation columns 4 come into contact with the air, resulting in faster heat transfer. The further away from the fan 6 the heat dissipation slot 3 becomes, the wider it becomes, and the air velocity gradually decreases. To compensate for the decrease in the contact velocity between the air and the heat dissipation columns 4, the height of the heat dissipation columns 4 is gradually increased to increase the contact area between the air and the heat dissipation columns, so that the heat dissipation process in different parts of the heat dissipation plate body 1 can be carried out evenly.

[0027] The heat sink can be straight, but as a preferred option, heat sink 2 is arc-shaped, which is more conducive to airflow and improves heat dissipation.

[0028] When fan 6 is embedded in fan mounting space 5, the height of the top of fan 6 is no higher than the height of the top of heat sink 2. That is, the airflow generated by fan 6 can fully circulate in heat sink 3, thereby forming contact heat exchange with heat sink 4 and heat sink 2, improving heat dissipation effect. On the other hand, the space occupied by fan 6 can be reduced, making the structure more compact.

[0029] A fan guard 7 is installed on top of the fan 6 to protect the fan 6. The heat sink body 1 can be equipped with several threaded posts 7a for fixing the fan guard 7.

[0030] like Figure 6 As shown, the heat sink body 1 is also provided with a controller connection slot 8 on the side opposite to the heat sink 2, which is used to install and connect the controller so that the controller can transfer heat through the heat sink body 1.

[0031] Each heat sink 2 is provided with a fan mounting step 9. This fan mounting step 9 is actually formed by a portion of the heat sink 2 being sunk. The depth of the sunk heat sink 2 is matched with the height of the fan 6, that is, the fan 6 cannot be higher than the fan mounting step 9. The fan mounting steps 9 of several heat sinks 2 enclose and form a fan mounting space 5.

[0032] The heat sink body 1 has a mounting handle 10 at each end. The inner wall of the mounting handle 10 and the end of the adjacent heat sink 2 have a gap 11 for air flow. The gap 11 allows air to enter and exit fully, thereby dissipating heat.

[0033] The heat sink body 1, heat sink 2 and heat sink column 4 are integrally formed and are made of aluminum alloy.

[0034] The working principle of this utility model is as follows:

[0035] When the fan 6 rotates, the airflow is directed downwards and diffuses the air to the surroundings through the heat sink 3. The air flows over the surface of the heat sink 4, which is arranged from low to high, and exchanges heat with the airflow. In addition, the heat sink 2 also has a heat dissipation effect. Together, they can effectively speed up the heat dissipation.

[0036] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model.

Claims

1. An active heat dissipation structure for a motor drive controller, comprising a heat sink body (1), characterized in that, The bottom of the heat sink body (1) is provided with several heat sinks (2), and a heat sink groove (3) is formed between every two adjacent heat sinks (2). Several heat sink columns (4) are provided in each heat sink groove (3). The middle part of several heat sinks (2) is recessed downward to form a fan mounting space (5). The fan (6) is embedded in the fan mounting space (5) and fixed to the heat sink body (1).

2. The active heat dissipation structure for the motor drive controller according to claim 1, characterized in that, The width of the heat dissipation groove (3) gradually increases from one end near the fan (6) to the other end.

3. The active heat dissipation structure for the motor drive controller according to claim 1 or 2, characterized in that, The heat dissipation columns (4) in each heat dissipation slot (3) are evenly spaced, and the height of the heat dissipation columns (4) in each heat dissipation slot (3) gradually increases from the end closest to the fan (6) to the other end.

4. The active heat dissipation structure for the motor drive controller according to claim 1, characterized in that, The heat sink (2) is arc-shaped.

5. The active heat dissipation structure for the motor drive controller according to claim 1, characterized in that, When the fan (6) is embedded in the fan mounting space (5), the height of the top of the fan (6) is not higher than the height of the top of the heat sink (2).

6. The active heat dissipation structure for the motor drive controller according to claim 1, characterized in that, A fan guard (7) is installed on top of the fan (6).

7. The active heat dissipation structure for the motor drive controller according to claim 1, characterized in that, The heat sink body (1) is also provided with a controller connection slot (8) on the side opposite to the heat sink (2).

8. The active heat dissipation structure for the motor drive controller according to claim 1, characterized in that, Each heat sink (2) is provided with a fan mounting step (9), and the fan mounting steps (9) of several heat sinks (2) enclose a fan mounting space (5).

9. The active heat dissipation structure for the motor drive controller according to claim 1, characterized in that, The heat sink body (1) has a mounting handle (10) at each end, and there is a gap (11) between the inner wall of the mounting handle (10) and the end of the adjacent heat sink (2) for air flow.

10. The active heat dissipation structure for the motor drive controller according to claim 1, characterized in that, The heat sink body (1), heat sink (2) and heat sink column (4) are integrally formed and are made of aluminum alloy.

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