Heat dissipation structure of power supply module

Abstract

The utility model discloses a heat dissipation structure of a power supply module, which relates to the technical field of power supply modules and comprises an electricity storage cabinet, a rotating mechanism is arranged below the inner wall of the electricity storage cabinet, a power supply module group is inserted above the rotating mechanism, and the outer wall above the power supply module group is rotatably connected with the inner wall above the electricity storage cabinet. Dustproof mechanisms are fixedly connected to the left and right sides in front of the inner wall of the power storage cabinet, and a cooling mechanism is arranged on the rear inner wall of the power storage cabinet. The output end of the motor drives a meshing gear II to be meshed with a meshing gear I to drive a cylinder to rotate, so that a circular seat II is driven to rotate, an inserting block and the circular seat are driven to rotate, a square fixing column drives a power module to rotate, and then air is filtered and sucked through a filter screen II by an air cooler; air is converted into cold air to be output to the spray head to be sprayed out, the cold air is blown to the power module for cooling, efficient and uniform cooling can be achieved, dust and other impurities can be blocked through the filter screen, and the filter screen assembly can be taken out for cleaning.

Description

Technical Field

[0001] This utility model relates to the field of power module technology, and specifically to a heat dissipation structure for a power module. Background Technology

[0002] A power supply module is a power supply unit that can be directly mounted on a printed circuit board. Its key feature is its ability to power application-specific integrated circuits (ASICs), digital signal processors (DSPs), microprocessors, memories, field-programmable gate arrays (FPGAs), and other digital or analog loads. Generally, these modules are called load power supply systems or point-of-use power supply systems. Due to the numerous advantages of their modular structure, modular power supplies are widely used in communication fields such as switching equipment, access equipment, mobile communications, microwave communications, optical transmission, and routers, as well as in automotive electronics and aerospace. However, the heat generated by the internal electronic equipment in the power supply can easily damage electronic components and even cause safety issues such as fires. Therefore, the heat dissipation of power supply modules is becoming increasingly important.

[0003] Current power module cooling structures all use fans fixed in one position for heat dissipation. This results in inefficient, slow, and uneven heat dissipation for the power module. Furthermore, dust and other impurities can enter the cabinet through the ventilation holes, affecting heat dissipation and potentially damaging the power module itself. Utility Model Content

[0004] This utility model provides a heat dissipation structure for a power module, which can effectively solve the problems of the current power module heat dissipation structure, which uses a fan fixed in one position for heat dissipation. This results in the inefficient, fast and uniform heat dissipation of the power module, and dust and other impurities can enter the cabinet through the heat dissipation holes, affecting heat dissipation and even the power module.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A heat dissipation structure for a power module includes a power storage cabinet. A rotating mechanism is provided on the lower part of the inner wall of the power storage cabinet. A power module assembly is inserted into the upper part of the rotating mechanism. The upper outer wall of the power module assembly is rotatably connected to the upper inner wall of the power storage cabinet. Dustproof mechanisms are fixedly connected to the left and right sides of the front of the inner wall of the power storage cabinet. A cooling mechanism is provided on the rear inner wall of the power storage cabinet.

[0007] A further improvement of the present invention is that: the energy storage cabinet includes a square compartment, a cabinet door is rotatably connected to the front right side of the square compartment, several support legs are fixedly connected to the bottom of the square compartment, a circular block is fixedly connected to the bottom of the inner wall of the square compartment, concave fixing blocks are fixedly connected to the rear and left and right sides of the square compartment, a circular hole penetrating the inside and outside is opened in the middle of the top of the square compartment, a handle is rotatably connected to the left and right sides of the top of the square compartment, and several heat dissipation holes penetrating the inside and outside are opened on the front left and right sides of the inner wall of the square compartment.

[0008] A further improvement of the present invention is that the power module group includes a circular block two, a handle two fixedly connected above the circular block two, a square fixing post fixedly connected below the circular block two, a plurality of power modules in a ring array fixedly connected to the outer wall of the square fixing post, a circular seat fixedly connected below the square fixing post, a plurality of plug-in blocks in a ring array fixedly connected below the circular seat, and the outer wall of the circular block two is rotatably connected to the inner wall of the circular hole.

[0009] A further improvement of the present invention is that the rotating mechanism includes a circular base two, a plurality of insertion slots arranged in a ring array are provided on the upper part of the circular base two, a cylinder is fixedly connected to the lower part of the circular base two, a gear one is fixedly connected to the outer wall of the cylinder, a gear two is meshed to the left side of the gear one, a motor is fixedly connected to the lower part of the gear two, the outer walls of the cylinder, gear one, and gear two are rotatably connected to the inner wall of the circular block, the outer wall of the motor is fixedly connected to the lower inner wall of the square compartment, the upper part of the cylinder passes through the upper part of the circular block to the outside, and the inner wall of the insertion slot is inserted into the outer wall of the insertion block.

[0010] A further improvement of this utility model is that: the dustproof mechanism includes two concave fixing blocks, each with a square groove on its opposite side; a U-shaped fixing block is fixedly connected to the upper center of each concave fixing block; a button post is slidably connected to the inner wall of the U-shaped fixing block; a button is fixedly connected above the button post; a semi-circular block is fixedly connected below the button post; a filter assembly is slidably connected to the inner wall of the square groove; and an internally and externally penetrating circular hole is provided at the upper center of each concave fixing block corresponding to the position of the semi-circular block; and the opposite sides of each concave fixing block are fixedly connected to the positions of the heat dissipation holes on the left and right sides of the front of the inner wall of the square compartment.

[0011] A further improvement of this utility model is that the filter assembly includes two square frames, a filter screen is fixedly connected to the inner wall of the square frame, a handle is fixedly connected to the front of the square frame, a circular groove corresponding to the position of the circular hole is opened in the middle of the upper part of the square frame, a spring is fixedly connected to the lower part of the inner wall of the circular groove, a semi-cylinder is fixedly connected to the upper part of the spring, the outer wall of the semi-cylinder is slidably connected to the inner wall of the circular groove, and the outer wall of the square frame is slidably connected to the inner wall of the square groove.

[0012] A further improvement of this utility model's technical solution is that: the cooling mechanism includes a cooler fan, an input pipe is fixedly connected to the output end of the cooler fan, a filter screen is fixedly connected to the inner wall of the input pipe, a pipe is fixedly connected to the output end of the cooler fan, a fixing block is fixedly connected to the lower front side of the cooler fan, several L-shaped pipes are fixedly connected to the left and right sides of the pipe, a nozzle is fixedly connected to the other end of the L-shaped pipe, the outer wall of the L-shaped pipe and the pipe is fixedly connected to the inner wall of the concave fixing block, the nozzles on both sides pass through the left and right sides of the square chamber to its interior, the front of the cooler fan is fixedly connected to the lower rear side of the square chamber, and the upper part of the fixing block is fixedly connected to the lower part of the square chamber.

[0013] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0014] 1. First, the motor output drives gear two to mesh with gear one, causing the cylinder to rotate. This rotates the circular seat two, which in turn rotates the plug block and the circular seat. This causes the square fixed column to rotate the power module. Then, the air is drawn in through the air cooler after being filtered by filter screen two. The air is converted into cold air and output to pipe one and the L-shaped pipe, where it is sprayed out from the nozzle. The cold air is blown onto the power module to cool it down. The cold air directly dissipates heat from the power module. According to the basic principle of heat transfer, the greater the temperature difference, the faster the heat transfer rate. When cool air blows across the power module, it can quickly carry away heat because the temperature of the cool air is much lower than the temperature of the power module after it generates heat during operation. The cool air blown from the nozzle makes full contact with the surface of the power module. This convection cooling method is much more efficient than natural heat dissipation. For example, when the power module is working, the heat generated by its internal electronic components is conducted to the surface through the power module's casing. The flow of cool air accelerates the speed at which heat is dissipated from the casing to the surrounding environment. The rotation of the rotating mechanism ensures that the heat is evenly distributed to each power module. This uniform heat dissipation is crucial for the stable operation of the power module. It can also be easily removed by grasping the handle and moving it upwards.

[0015] 2. The filter screen can block dust and other impurities. When too much dust accumulates on the surface of the filter screen, press the button to make the button post and semi-circular block slide down and squeeze the semi-circular post so that it slides with the circular groove. Then squeeze the spring and slide it down again. Then grab the handle and pull it out to make the square frame slide with the square groove and take it out. It can be easily taken out for cleaning. Attached Figure Description

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

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the energy storage cabinet structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the power module assembly structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the rotating mechanism structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the dustproof mechanism of this utility model;

[0022] Figure 7 This is a schematic diagram of the filter assembly structure of this utility model;

[0023] Figure 8 This is a schematic diagram of the cooling mechanism of this utility model.

[0024] In the diagram: 1. Storage cabinet; 2. Power module group; 3. Rotating mechanism; 4. Dustproof mechanism; 5. Cooling mechanism; 11. Square compartment; 12. Support leg; 13. Cabinet door; 14. Concave fixing block; 15. Circular block; 16. Handle one; 17. Heat dissipation hole; 18. Circular hole; 21. Circular block two; 22. Handle two; 23. Square fixing post; 24. Power module; 25. Circular base; 26. Plug-in block; 31. Circular base two; 32. Plug-in slot; 33. Cylinder; 34. Gear one; 3 5. Gear II; 36. Motor; 41. Concave Fixing Block II; 42. U-shaped Fixing Block; 43. Button Post; 44. Button; 45. Semicircular Block; 46. Square Groove; 47. Filter Assembly; 48. Circular Hole II; 471. Square Frame; 472. Filter; 473. Handle III; 474. Circular Groove; 475. Spring; 476. Semi-cylinder; 51. Air Cooler; 52. Input Pipe; 53. Fixing Block; 54. Pipe I; 55. L-shaped Pipe; 56. Nozzle; 57. Filter II. Detailed Implementation

[0025] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments:

[0026] like Figure 1-2 As shown, this utility model provides a heat dissipation structure for a power module, including a power storage cabinet 1. A rotating mechanism 3 is provided on the lower part of the inner wall of the power storage cabinet 1. A power module group 2 is inserted into the upper part of the rotating mechanism 3. The upper outer wall of the power module group 2 is rotatably connected to the upper inner wall of the power storage cabinet 1. Dustproof mechanisms 4 are fixedly connected to the left and right sides of the front of the inner wall of the power storage cabinet 1. A cooling mechanism 5 is provided on the rear inner wall of the power storage cabinet 1.

[0027] The power module assembly 2, the rotating mechanism 3, and the cooling mechanism 5 work together to enable efficient and uniform heat dissipation of the power module. The dustproof mechanism 4 prevents dust and impurities from entering through the heat dissipation holes and also makes disassembly and cleaning very convenient.

[0028] like Figure 3 The present invention provides a technical solution: the energy storage cabinet 1 includes a square compartment 11, a cabinet door 13 is rotatably connected to the front right side of the square compartment 11, several support legs 12 are fixedly connected to the bottom of the square compartment 11, a circular block 15 is fixedly connected to the bottom of the inner wall of the square compartment 11, a concave fixing block 14 is fixedly connected to the rear side and the left and right sides of the square compartment 11, a circular hole 18 penetrating the inside and outside is opened in the middle of the upper part of the square compartment 11, a handle 16 is rotatably connected to the left and right sides of the upper part of the square compartment 11, and several heat dissipation holes 17 penetrating the inside and outside are opened on the front left and right sides of the inner wall of the square compartment 11.

[0029] like Figure 4 , 5As shown in Figure 8, this utility model provides a technical solution: the power module group 2 includes a circular block 21, a handle 22 fixedly connected to the top of the circular block 21, a square fixing post 23 fixedly connected to the bottom of the circular block 21, a plurality of power modules 24 in a ring array fixedly connected to the outer wall of the square fixing post 23, a circular seat 25 fixedly connected to the bottom of the square fixing post 23, a plurality of plug-in blocks 26 in a ring array fixedly connected to the bottom of the circular seat 25, the outer wall of the circular block 21 is rotatably connected to the inner wall of the circular hole 18, the rotating mechanism 3 includes a circular seat 31, a plurality of plug-in slots 32 in a ring array are opened on the top of the circular seat 31, a cylinder 33 fixedly connected to the bottom of the circular seat 31, a gear 1 34 fixedly connected to the outer wall of the cylinder 33, a gear 2 35 meshing with the left side of the gear 1 34, a motor 36 fixedly connected to the bottom of the gear 2 35, and the cylinder 33, gear 1 34, and gear 2 36 are respectively connected to the rotating mechanism 31. The outer wall of the cylinder 33 is rotatably connected to the inner wall of the circular block 15. The outer wall of the motor 36 is fixedly connected to the lower inner wall of the square chamber 11. The cylinder 33 passes through the upper part of the circular block 15 to the outside. The inner wall of the insertion slot 32 is inserted into the outer wall of the insertion block 26. The cooling mechanism 5 includes a cold air blower 51. The output end of the cold air blower 51 is fixedly connected to the input pipe 52. The inner wall of the input pipe 52 is fixedly connected to the filter screen 27. The output end of the cold air blower 51 is fixedly connected to the pipe 1 54. The lower front side of the cold air blower 51 is fixedly connected to the fixing block 53. Several L-shaped pipes 55 are fixedly connected to the left and right sides of the pipe 1 54. The other end of the L-shaped pipe 55 is fixedly connected to the nozzle 56. The outer walls of the L-shaped pipe 55 and the pipe 1 54 are fixedly connected to the inner wall of the concave fixing block 14. The nozzles 56 on both sides pass through the left and right sides of the square chamber 11 to its interior. The front of the cold air blower 51 is fixedly connected to the lower rear side of the square chamber 11. The upper part of the fixing block 53 is fixedly connected to the lower part of the square chamber 11.

[0030] The existing technology of the evaporative air cooler 51 compresses the refrigerant into a high-temperature, high-pressure gas through a built-in compressor. After being cooled by the condenser, it becomes a high-pressure liquid. The high-pressure liquid is depressurized through the expansion valve and enters the evaporator. In the evaporator, the refrigerant evaporates rapidly and absorbs heat, which lowers the temperature of the surrounding air. Finally, the fan blows out the cold air. This will not be elaborated on further here.

[0031] The power module assembly 2, the rotating mechanism 3, and the cooling mechanism 5 enable efficient cooling of the power module. In use, the output end of the motor 36 first drives the meshing gear 2 35 and the meshing gear 1 34 to rotate the cylinder 33, which in turn drives the circular seat 2 31 to rotate, which in turn drives the plug block 26 and the circular seat 25 to rotate, causing the square fixed column 23 to rotate the power module 24. Then, the air is drawn in by the air cooler 51 after being filtered through the filter screen 2 57, and the air is converted into cold air and output to the pipe 1 54 and the L-shaped pipe 55 and sprayed out from the nozzle 56, blowing the cold air onto the power module 24 for cooling. The cold air directly dissipates heat from the power module. According to the basic principle of heat transfer, the greater the temperature difference, the faster the heat transfer rate. When the cold air blows over the power module, it can quickly carry away the heat because the temperature of the cold air is much lower than the temperature of the power module after it generates heat during operation. The cold air blown out by the nozzle makes full contact with the surface of the power module. This convection cooling method is much more efficient than natural cooling. For example, when the power module is working, the heat generated by its internal electronic components is conducted to the surface through the power module's casing. The flow of cold air accelerates the speed at which heat is dissipated from the casing to the surrounding environment. The rotation of the rotating mechanism 3 ensures that the heat can be evenly distributed to each power module. This uniform heat dissipation is crucial for the stable operation of the power module. It can also be easily removed by grabbing the handle 22 and moving it upwards.

[0032] like Figure 6-7 This utility model provides a technical solution: a dustproof mechanism 4 includes two concave fixing blocks 41. Each of the two concave fixing blocks 41 has a square groove 46 on its opposite side. A U-shaped fixing block 42 is fixedly connected to the upper center of the concave fixing block 41. A button post 43 is slidably connected to the inner wall of the middle of the U-shaped fixing block 42. A button 44 is fixedly connected above the button post 43. A semi-circular block 45 is fixedly connected below the button post 43. A filter assembly 47 is slidably connected to the inner wall of the square groove 46. A through-hole 48 is provided in the upper center of the concave fixing block 41 corresponding to the position of the semi-circular block 45. The two concave fixing blocks 41... The opposite sides are fixedly connected to the positions of the heat dissipation holes 17 on the left and right sides of the front of the inner wall of the square compartment 11. The filter assembly 47 includes two square frames 471. A filter 472 is fixedly connected to the inner wall of the square frame 471. A handle 473 is fixedly connected to the front of the square frame 471. A circular groove 474 corresponding to the position of the circular hole 48 is opened in the middle of the upper part of the square frame 471. A spring 475 is fixedly connected to the lower part of the inner wall of the circular groove 474. A semi-cylinder 476 is fixedly connected to the upper part of the spring 475. The outer wall of the semi-cylinder 476 is slidably connected to the inner wall of the circular groove 474. The outer wall of the square frame 471 is slidably connected to the inner wall of the square groove 46.

[0033] The dustproof mechanism 4 prevents dust from entering through the heat dissipation holes. During use, the filter screen 472 can block dust and other impurities. When too much dust accumulates on the surface of the filter screen 472, pressing the button 44 causes the button post 43 and the semi-circular block 45 to slide downwards, pressing the semi-circular post 476 so that it slides into the circular groove 474. Then, the spring 475 is squeezed and slid downwards. Finally, the handle 3 473 is grasped and pulled out, causing the square frame 471 to slide into the square groove 46 and be removed. It can be easily removed for cleaning. The detachable design allows maintenance personnel to periodically remove the filter screen for cleaning or replacement. For example, a reasonable maintenance cycle can be formulated according to the dust conditions of the usage environment to ensure that the filter screen always maintains good filtration performance, thereby ensuring the normal operation of the heat dissipation system and reducing the problem of power module overheating caused by dust blockage.

[0034] The working principle of the heat dissipation structure of this power module is explained in detail below: The power module assembly 2, the rotating mechanism 3, and the cooling mechanism 5 can efficiently cool the power module. In use, the output end of the motor 36 first drives the meshing gear 2 35 and the meshing gear 1 34 to rotate the cylinder 33, which in turn drives the circular seat 2 31 to rotate, which in turn drives the plug block 26 and the circular seat 25 to rotate, so that the square fixed column 23 drives the power module 24 to rotate. Then, the air is drawn in by the cold air fan 51 after being filtered through the filter screen 2 57, and the air is converted into cold air and output to the pipe 1 54 and the L-shaped pipe 55 and sprayed out from the nozzle 56, which blows the cold air onto the power module 24 for cooling. The cold air directly dissipates heat from the power module. According to the basic principle of heat transfer, the greater the temperature difference, the faster the heat transfer rate. When the cold air blows over the power module, it can quickly carry away the heat because the temperature of the cold air is much lower than the temperature of the power module after it generates heat during operation. The cold air blown out by the nozzle makes full contact with the surface of the power module. This convection cooling method is much more efficient than natural cooling. For example, when the power module is working, the heat generated by its internal electronic components is conducted to the surface through the power module's casing. The flow of cold air accelerates the speed at which heat is dissipated from the casing to the surrounding environment. The rotation of the rotating mechanism 3 ensures that the heat can be evenly distributed to each power module. This uniform heat dissipation is crucial for the stable operation of the power module. It can also be easily removed by grabbing the handle 22 and moving it upwards.

[0035] The dustproof mechanism 4 prevents dust from entering through the heat dissipation holes. During use, the filter screen 472 can block dust and other impurities. When too much dust accumulates on the surface of the filter screen 472, pressing the button 44 causes the button post 43 and the semi-circular block 45 to slide downwards, pressing the semi-circular post 476 so that it slides into the circular groove 474. Then, the spring 475 is squeezed and slid downwards. Finally, the handle 3 473 is grasped and pulled out, causing the square frame 471 to slide into the square groove 46 and be removed. It can be easily removed for cleaning. The detachable design allows maintenance personnel to periodically remove the filter screen for cleaning or replacement. For example, a reasonable maintenance cycle can be formulated according to the dust conditions of the usage environment to ensure that the filter screen always maintains good filtration performance, thereby ensuring the normal operation of the heat dissipation system and reducing the problem of power module overheating caused by dust blockage.

[0036] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A heat dissipation structure for a power module, comprising a power storage cabinet (1), characterized in that: A rotating mechanism (3) is provided on the lower inner wall of the energy storage cabinet (1). A power module group (2) is inserted above the rotating mechanism (3). The upper outer wall of the power module group (2) is rotatably connected to the upper inner wall of the energy storage cabinet (1). Dustproof mechanisms (4) are fixedly connected to the left and right sides of the front of the inner wall of the energy storage cabinet (1). A cooling mechanism (5) is provided on the rear inner wall of the energy storage cabinet (1).

2. The heat dissipation structure of a power module according to claim 1, characterized in that: The energy storage cabinet (1) includes a square compartment (11), a cabinet door (13) is rotatably connected to the front right side of the square compartment (11), several support legs (12) are fixedly connected to the bottom of the square compartment (11), a circular block (15) is fixedly connected to the bottom of the inner wall of the square compartment (11), a concave fixing block (14) is fixedly connected to the rear side and left and right sides of the square compartment (11), a circular hole (18) penetrating inside and outside is opened in the middle of the top of the square compartment (11), a handle (16) is rotatably connected to the left and right sides of the top of the square compartment (11), and several heat dissipation holes (17) penetrating inside and outside are opened on the front left and right sides of the inner wall of the square compartment (11).

3. The heat dissipation structure of a power module according to claim 2, characterized in that: The power module group (2) includes a circular block two (21), a handle two (22) is fixedly connected above the circular block two (21), a square fixing post (23) is fixedly connected below the circular block two (21), a number of power modules (24) in a ring array are fixedly connected to the outer wall of the square fixing post (23), a circular seat (25) is fixedly connected below the square fixing post (23), a number of plug-in blocks (26) in a ring array are fixedly connected below the circular seat (25), and the outer wall of the circular block two (21) is rotatably connected to the inner wall of the circular hole (18).

4. The heat dissipation structure of a power module according to claim 3, characterized in that: The rotating mechanism (3) includes a circular seat (31), with a plurality of insertion slots (32) arranged in a ring array above the circular seat (31). A cylinder (33) is fixedly connected below the circular seat (31). A gear (34) is fixedly connected to the outer wall of the cylinder (33). A gear (35) is meshed to the left side of the gear (34). A motor (36) is fixedly connected below the gear (35). The outer walls of the cylinder (33), gear (34), and gear (35) are rotatably connected to the inner wall of the circular block (15). The outer wall of the motor (36) is fixedly connected to the lower inner wall of the square compartment (11). The cylinder (33) passes through the upper part of the circular block (15) to the outside. The inner wall of the insertion slot (32) is inserted into the outer wall of the insertion block (26).

5. The heat dissipation structure of a power module according to claim 2, characterized in that: The dustproof mechanism (4) includes two concave fixing blocks (41). The two concave fixing blocks (41) have square grooves (46) on their opposite sides. A U-shaped fixing block (42) is fixedly connected to the upper center of the concave fixing block (41). A button post (43) is slidably connected to the inner wall of the middle of the U-shaped fixing block (42). A button (44) is fixedly connected above the button post (43). A semi-circular block (45) is fixedly connected below the button post (43). A filter assembly (47) is slidably connected to the inner wall of the square groove (46). A through-hole (48) is opened in the upper center of the concave fixing block (41) corresponding to the position of the semi-circular block (45). The opposite sides of the two concave fixing blocks (41) are fixedly connected to the positions of the heat dissipation holes (17) on the left and right sides of the front of the inner wall of the square compartment (11).

6. The heat dissipation structure of a power module according to claim 5, characterized in that: The filter assembly (47) includes two square frames (471). A filter screen (472) is fixedly connected to the inner wall of the square frame (471). A handle (473) is fixedly connected to the front of the square frame (471). A circular groove (474) corresponding to the position of the circular hole (48) is opened in the middle of the upper part of the square frame (471). A spring (475) is fixedly connected to the lower part of the inner wall of the circular groove (474). A semi-cylinder (476) is fixedly connected to the upper part of the spring (475). The outer wall of the semi-cylinder (476) is slidably connected to the inner wall of the circular groove (474). The outer wall of the square frame (471) is slidably connected to the inner wall of the square groove (46).

7. The heat dissipation structure of a power module according to claim 2, characterized in that: The cooling mechanism (5) includes a cooler (51), an input pipe (52) is fixedly connected to the output end of the cooler (51), a filter screen (57) is fixedly connected to the inner wall of the input pipe (52), a pipe (54) is fixedly connected to the output end of the cooler (51), a fixing block (53) is fixedly connected to the lower front side of the cooler (51), several L-shaped pipes (55) are fixedly connected to the left and right sides of the pipe (54), a nozzle (56) is fixedly connected to the other end of the L-shaped pipe (55), the outer wall of the L-shaped pipe (55) and the pipe (54) is fixedly connected to the inner wall of the concave fixing block (14), the nozzles (56) on both sides pass through the left and right sides of the square chamber (11) to its interior, the front of the cooler (51) is fixedly connected to the lower rear side of the square chamber (11), and the upper part of the fixing block (53) is fixedly connected to the lower part of the square chamber (11).

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