Auxiliary heat dissipation structure of motor drive board

Abstract

The utility model provides an auxiliary heat radiation structure of a motor drive board. The auxiliary heat radiation structure comprises a fixed seat, a clamping assembly and a heat radiation assembly. The fixing base is hollow and provided with a containing cavity, and the clamping assembly is used for being matched with the inner wall of the containing cavity to fix the motor driving plate. The heat dissipation assembly is located at the bottom of the fixing base and comprises a heat dissipation box, a heat dissipation fan and a plurality of heat conduction pipes. Heat dissipation holes are respectively formed in two opposite side walls of the heat dissipation box; a plurality of fan mounting holes are formed in the bottom of the heat dissipation box, and a heat dissipation fan is mounted in each fan mounting hole; one end of the heat conduction pipe penetrates through the top surface of the heat dissipation box and is positioned in the fixed seat; according to the auxiliary heat dissipation structure designed by the utility model, the clamping assembly is adjusted, so that the clamping assembly and the top surface of the fixed seat can flexibly fix and detach the motor driving plate, and the motor driving plate is convenient to replace and maintain; and the heat dissipation assembly arranged at the bottom can quickly take away heat dissipated by the motor driving plate.

Description

Technical Field

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

[0002] A motor drive board is a circuit component that works with a motor to ensure its normal operation; it is the circuit control device required for motor operation. Motor drive boards are prone to generating heat in high-power applications, necessitating the design of a heat dissipation structure to prevent overheating during operation and thus extend their lifespan.

[0003] Currently, a Chinese patent with publication number CN218450680U discloses a high-efficiency motor drive heat dissipation structure, including a motor drive board, a thermally conductive pad, and a heat sink. The heat sink is disposed on the back of the motor drive board, and the thermally conductive pad is disposed between the motor drive board and the heat sink. The two sides of the thermally conductive pad are respectively in close contact with the back of the motor drive board and the surface of the heat sink.

[0004] However, the aforementioned motor drive heat dissipation structure only relies on thermally conductive pads to increase thermal conductivity. In actual use, it cannot improve the heat dissipation efficiency of the drive circuit board, nor can it flexibly fix and disassemble the drive circuit board, which greatly reduces the convenience of maintenance and has certain limitations. Utility Model Content

[0005] The purpose of this invention is to solve the problems of low heat dissipation efficiency and inflexible fixing of motor drive boards in the prior art, and to provide an auxiliary heat dissipation structure for motor drive boards.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0007] An auxiliary heat dissipation structure for a motor drive board includes a mounting base, a clamping assembly, and a heat dissipation assembly. The mounting base is hollow and has a receiving cavity. The clamping assembly is used to cooperate with the inner wall of the receiving cavity to fix the motor drive board. The heat dissipation assembly is located at the bottom of the mounting base and includes a heat dissipation box, a cooling fan, and multiple heat pipes. Multiple heat dissipation holes are respectively opened on the opposite side walls of the heat dissipation box. Multiple fan mounting holes are provided at the bottom of the heat dissipation box, and a cooling fan is installed in each fan mounting hole. The heat pipes are hollow tubular structures, with one end of each heat pipe penetrating through the top surface of the heat dissipation box and located inside the mounting base, and the other end located inside the heat dissipation box.

[0008] Furthermore, the clamping assembly includes a first slide rail, a second slide rail, two clamping plates, and a threaded rod; the first and second slide rails are symmetrically arranged on the inner wall of the receiving cavity and perpendicular to the motor drive plate; the first and second slide rails are respectively slidably equipped with sliders, and each clamping plate is connected to the slider on the same side; the bottom surface of the fixing seat located on both sides of the heat dissipation assembly is provided with two threaded holes; each threaded hole is provided with a threaded rod, one end of the threaded rod is connected to the bottom surface of the clamping plate, and the other end extends out of the fixing seat through the threaded hole.

[0009] Furthermore, an operating knob is provided at the other end of the threaded rod.

[0010] Furthermore, the clamping plate is provided with an anti-slip pad on the side facing the motor drive plate; the anti-slip pad is provided with anti-slip texture.

[0011] Furthermore, multiple fan mounting holes are evenly arranged at the bottom of the heat sink, and each fan mounting hole is fitted with a heat sink bracket, through which the cooling fan is mounted in the fan mounting hole.

[0012] Furthermore, multiple heat dissipation holes are symmetrically arranged on the side wall of the heat sink.

[0013] Furthermore, the heat pipe has through holes on its wall.

[0014] Furthermore, ventilation holes are provided on the opposite side walls of the cavity.

[0015] Furthermore, among the multiple heat pipes, at least some of the heat pipes have one end close to the cooling fan and the other end close to the motor drive board.

[0016] The advantages of this utility model are:

[0017] 1. The auxiliary heat dissipation structure designed in this utility model allows for flexible fixing and disassembly of the motor drive board by adjusting the clamping components and the top surface of the fixing base, facilitating the replacement and maintenance of the motor drive board; the heat dissipation components at the bottom can quickly remove the heat emitted by the motor drive board.

[0018] 2. The heat pipe designed in this utility model can conduct the heat dissipated by the motor drive board to the heat sink. The rotation of the cooling fan enables airflow in the heat sink, and the heat flows out of the heat sink through the heat dissipation holes, ultimately improving the heat dissipation efficiency of the motor drive board. Attached Figure Description

[0019] The features and advantages of this invention will become more readily understood from the following description with reference to the accompanying drawings, which are not drawn to scale and some features are enlarged or reduced to show details of specific parts.

[0020] Figure 1This is a schematic diagram of the overall structure of the auxiliary heat dissipation structure in an embodiment of this utility model;

[0021] Figure 2 yes Figure 1 Enlarged view of point A;

[0022] 1-Fixed base; 2-Clamping assembly; 201-First slide rail; 202-Second slide rail; 203-Slider; 204-Clamping plate; 205-Threaded rod; 206-Operating knob; 207-Motor drive board; 3-Heat dissipation box; 4-Heat dissipation assembly; 401-Heat pipe; 402-Heat dissipation hole; 403-Heat dissipation bracket; 404-Heat dissipation fan; 5-Anti-slip pad. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings and exemplary embodiments thereof. It should be noted that the following detailed description of the present invention is for illustrative purposes only and is not intended to limit the scope of the invention.

[0024] like Figure 1 As shown, an auxiliary heat dissipation structure for a motor drive board includes a fixing base 1, a clamping assembly 2, and a heat dissipation assembly 4. The fixing base 1 is hollow inside and has a receiving cavity. The clamping assembly 2 is used to cooperate with the inner wall of the receiving cavity to fix the motor drive board 207.

[0025] like Figure 1 As shown, the heat dissipation assembly 4 is located at the bottom of the mounting base 1, including a heat dissipation box 3, a cooling fan 404, and multiple heat pipes 401. Multiple heat dissipation holes 402 are respectively opened on opposite side walls of the heat dissipation box 3, with two heat dissipation holes 402 arranged symmetrically. Multiple fan mounting holes are provided at the bottom of the heat dissipation box 3, with one cooling fan 404 installed in each fan mounting hole. The heat pipes 401 are hollow tubular structures, with the upper end of each heat pipe 401 penetrating the top surface of the heat dissipation box 3 and located inside the mounting base 1, and the lower end located inside the heat dissipation box 3. Multiple fan mounting holes are evenly arranged at the bottom of the heat dissipation box 3, and each fan mounting hole is fitted with a heat dissipation mounting bracket 403, through which the cooling fan 404 is mounted in the fan mounting hole.

[0026] like Figure 1 , 2 As shown, the clamping assembly 2 includes a first slide rail 201, a second slide rail 202, two clamping plates 204, and a threaded rod 205.

[0027] like Figure 1 As shown, the first slide rail 201 and the second slide rail 202 are symmetrically opened on the inner wall of the receiving cavity and are perpendicular to the motor drive plate 207; the first slide rail 201 and the second slide rail 202 are respectively slidably provided with sliders 203, and each clamping plate 204 is connected to the slider 203 on the same side.

[0028] like Figure 1 , 2 As shown, the bottom surface of the mounting base 1 located on both sides of the heat dissipation assembly 4 has two threaded holes; each threaded hole contains a threaded rod 205, one end of which is rotatably connected to the bottom surface of the clamping plate 204, and the other end extends out of the mounting base 1 through the threaded hole. The other end of the threaded rod 205 has an operating knob 206. The clamping plate 204 has an anti-slip pad 5 on the side facing the motor drive plate 207. The anti-slip pad 5 has anti-slip textures.

[0029] When the equipment is working, the motor drive plate 207 is first fixed. First, turn the operating knob 206 clockwise. The operating knob 206 drives the threaded rod 205 connected to it to rotate. The threaded rod 205 engages with the threaded hole, so that the upper end of the threaded rod 205 moves toward the motor drive plate 207, and drives the clamping plate 204 to move upward to contact the motor drive plate 207 and press it tightly. This can flexibly fix the motor drive plate 207. When disassembling the motor drive plate 207, simply turn the operating knob 206 counterclockwise. The clamping assembly 2 makes it easy to replace and maintain the motor drive plate 207.

[0030] During heat dissipation, the heat pipe 401 conducts the heat emitted by the motor drive board 207 in the cavity to the heat sink 3. The rotation of the cooling fan 404 enables airflow in the heat sink 3, thereby carrying away the heat and achieving heat dissipation for the motor drive board 207. The heat dissipation component 4 at the bottom can quickly remove the heat emitted by the motor drive board 207.

[0031] In one embodiment, the heat pipe 401 has through holes in its wall. Air can flow through the heat pipe 401 in both horizontal and vertical directions, which can improve the airflow rate within the receiving cavity and the heat sink 3.

[0032] In this embodiment, the upper end of the heat pipe 401 is close to the motor drive plate 207, closer to the heat source, resulting in faster heat conduction. The lower end is close to the cooling fan 404. The significant temperature difference between the two ends of the heat pipe 401 further accelerates heat conduction. Together with the cooling fan 404, it dissipates heat from the motor drive plate 207. Since the lower end of the heat pipe 401 is inside the heat sink 3, when external air enters the heat sink 3 from the cooling fan 404, it blows across the lower end of the heat pipe 401, carrying away heat and thus improving the heat dissipation effect.

[0033] In one embodiment, the heat pipe 401 is made of a material with high thermal conductivity, such as graphite or aluminum sheet. The base is made of a material with lower thermal conductivity than the heat pipe 401, but with higher rigidity, such as steel.

[0034] In one embodiment, the heat pipe 401 and the mounting base 1 are made of the same material, such as steel.

[0035] In one embodiment, ventilation holes are provided on the opposite side walls of the receiving cavity. When the cooling fan 404 is started, the air pressure inside the heat sink 3 decreases. Since the heat sink 3 is connected to the receiving cavity, external air can enter the receiving cavity through the ventilation holes on the side wall of the receiving cavity, enter the heat sink 3, and then be discharged from the heat sink 3, thereby carrying away the hot air inside the receiving cavity.

[0036] In one embodiment, among the plurality of heat pipes 401, some heat pipes 401 close to the heating element on the motor drive board 207 have one end close to the cooling fan 404 and the other end close to the heating element on the motor drive board 207. This allows for faster and more effective heat exchange, thereby cooling the motor drive board 207.

[0037] Finally, it should be noted that the features mentioned and / or shown in the above description of exemplary embodiments of the present invention can be combined in the same or similar manner with one or more other embodiments, combined with features in other embodiments, or substituted for corresponding features in other embodiments. These combined or substituted technical solutions should also be considered as included within the protection scope of the present invention.

Claims

1. An auxiliary heat dissipation structure for a motor drive board, characterized in that, It includes a mounting base (1), a clamping assembly (2), and a heat dissipation assembly (4); The fixed base (1) is hollow inside and has a receiving cavity. The clamping assembly (2) is used to cooperate with the inner wall of the receiving cavity to fix the motor drive plate (207). The heat dissipation assembly (4) is located at the bottom of the fixed base (1) and includes a heat dissipation box (3), a heat dissipation fan (404), and multiple heat pipes (401). Multiple heat dissipation holes (402) are respectively opened on the opposite side walls of the heat dissipation box (3). Multiple fan mounting holes are provided at the bottom of the heat dissipation box (3), and a heat dissipation fan (404) is installed in each fan mounting hole. The heat pipe (401) is a hollow tubular structure. One end of each heat pipe (401) penetrates the top surface of the heat dissipation box (3) and is located inside the fixed base (1), and the other end is located inside the heat dissipation box (3).

2. The auxiliary heat dissipation structure according to claim 1, characterized in that, The clamping assembly (2) includes a first slide rail (201), a second slide rail (202), two clamping plates (204), and a threaded rod (205); The first slide rail (201) and the second slide rail (202) are symmetrically arranged on the inner wall of the receiving cavity and are perpendicular to the motor drive plate (207); The first slide rail (201) and the second slide rail (202) are respectively slidably provided with sliders (203), and each of the clamping plates (204) is connected to the slider (203) on the same side; The bottom surface of the fixing seat (1) located on both sides of the heat dissipation component (4) is provided with two threaded holes; each threaded hole is provided with a threaded rod (205), one end of the threaded rod (205) is connected to the bottom surface of the clamping plate (204), and the other end extends out of the fixing seat (1) through the threaded hole.

3. The auxiliary heat dissipation structure according to claim 2, characterized in that, The other end of the threaded rod (205) is provided with an operating knob (206).

4. The auxiliary heat dissipation structure according to claim 2, characterized in that, The clamping plate (204) is provided with an anti-slip pad (5) on the side facing the motor drive plate (207); the anti-slip pad (5) is provided with anti-slip texture.

5. The auxiliary heat dissipation structure according to claim 1, characterized in that, Multiple fan mounting holes are evenly arranged at the bottom of the heat sink (3), and each fan mounting hole is equipped with a heat sink bracket (403). The heat sink fan (404) is installed in the fan mounting hole through the heat sink bracket (403).

6. The auxiliary heat dissipation structure according to claim 1, characterized in that, Multiple heat dissipation holes (402) are symmetrically arranged on the side wall of the heat dissipation box (3).

7. The auxiliary heat dissipation structure according to claim 1, characterized in that, The heat pipe (401) has through holes on its wall.

8. The auxiliary heat dissipation structure according to claim 1, characterized in that, Ventilation holes are provided on the opposite side walls of the cavity.

9. The auxiliary heat dissipation structure according to claim 1, characterized in that, Of the plurality of heat pipes (401), at least some of the heat pipes (401) have one end close to the cooling fan (404) and the other end close to the motor drive plate (207).

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