Heat dissipation structure of power supply module

Abstract

According to the technical scheme, the heat dissipation structure is characterized in that the heat dissipation structure comprises a shell, a cover plate is fixedly installed on the top face of the shell, a power module body is arranged in the shell, the two sides of the shell are each provided with two installation holes, and heat dissipation fans are arranged in the installation holes; the air guide assemblies are arranged on the two sides of the interior of the shell and used for increasing the air speed, by arranging the air guide pipes, when the air guide pipes serve as a cooling fan, air enters the air guide frames and is blown into the shell through the air guide pipes, when the air passes through the air guide pipes, the pipe openings of the air guide pipes become small gradually, the air speed of the blowing position is increased, and therefore the cooling efficiency is improved, and the service life of the air guide pipes is prolonged. By arranging the filter frame, natural wind blown by the cooling fan is filtered through the first filter screen in the filter frame, and after the first filter screen is used for a long time and a cover plate is opened by a worker, the filter frame is conveniently taken out, and the first filter screen is cleaned.

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 that can be directly mounted on a printed circuit board. Its features include the ability to provide power to application-specific integrated circuits, digital signal processors, microprocessors, memories, field-programmable gate arrays, and other digital or analog loads.

[0003] According to Chinese Patent Application No. CN202320957806.4, a heat dissipation structure and a power module are disclosed, including a power module housing. Slots are provided on the lower sides of both outer walls of the power module housing. A power circuit board is installed inside the power module housing. The structure is reasonable. This utility model incorporates a heat dissipation mechanism, with two sets of heat dissipation mechanisms installed on both sides of the inside of the power module housing, and the power circuit board placed between the two sets of heat dissipation mechanisms. Utilizing the installation and heat dissipation effects of the heat dissipation mechanism, combined with multiple ventilation slots on the power module housing, the heat generated by the power circuit board during use can be promptly dissipated by the heat dissipation mechanism and ventilation slots, preventing excessive heat from the power circuit board from causing damage or malfunction. This effectively achieves heat dissipation for the power module.

[0004] Currently, there are still some shortcomings in the heat dissipation structure and power modules of a certain type. For example, opening heat dissipation holes at the installation location of the power module and relying on the natural air circulation to remove the heat inside the power module to achieve the effect of heat dissipation and cooling is slow and ineffective. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a heat dissipation structure for a power module, which solves the problem that opening heat dissipation holes at the installation location of the power module and relying on natural air circulation to remove heat from the power module to achieve a cooling effect is slow and ineffective.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A heat dissipation structure for a power module includes: a housing, a cover plate fixedly installed on the top surface of the housing, a power module body disposed inside the housing, two mounting holes on each side of the housing, and a cooling fan disposed inside the mounting holes; and an air guide assembly disposed on both sides inside the housing to accelerate the airflow.

[0008] By adopting the above technical solution and setting up cooling fans, after the power module body is installed inside the housing, the cooling fans on both sides dissipate heat from the power module body inside the housing, preventing the power module body from overheating and affecting the power supply function.

[0009] Preferably, the air guide assembly includes: two air guide frames, which are respectively fixedly installed on the inner sides of the housing. A plurality of air guide holes are opened on one side of each air guide frame, and an air guide pipe is fixedly sleeved inside each air guide hole.

[0010] By adopting the above technical solution and setting up air ducts, when the cooling fan is turned on, natural air enters the air guide frame and is blown into the interior of the air guide housing through the air ducts. When the air passes through the air ducts, the opening of the air ducts narrows, increasing the outflow speed and thus improving the heat dissipation efficiency.

[0011] Preferably, a mounting bracket is fixedly installed on one side of the air guide frame, and several heat dissipation holes are provided on both sides of the housing.

[0012] By adopting the above technical solution and setting heat dissipation holes, when the power module body is placed on the mounting bracket, a cavity is formed between the power module body and the bottom of the housing, and the heat dissipation holes facilitate heat dissipation from the bottom of the power module body.

[0013] Preferably, the top surface of the cover plate has several heat dissipation vents.

[0014] By adopting the above technical solution and setting heat dissipation vents, when the outside natural wind enters the shell, the hot air inside the shell is squeezed upward and discharged through the heat dissipation vents.

[0015] Preferably, the top surface of the air guide frame is provided with an installation port, and a filter frame is movably engaged inside the installation port, with a first filter screen disposed inside the filter frame.

[0016] By adopting the above technical solution, and by setting a filter frame, the natural air blown in by the cooling fan is filtered through the first filter screen in the filter frame. After the first filter screen has been used for a long time, the staff can open the cover to easily remove the filter frame and clean the first filter screen.

[0017] Preferably, a second filter screen is provided inside the heat dissipation vent and heat dissipation hole.

[0018] By adopting the above technical solution and setting a second filter, dust is prevented from entering the housing from the heat dissipation vents and holes, and from falling onto the power module body, thus affecting the heat dissipation effect of the power module body.

[0019] In summary, the present invention has the following main advantages:

[0020] By setting up air ducts, when the cooling fan is activated, the air enters the air guide frame and is blown into the interior of the air guide housing through the air ducts. As the air passes through the air ducts, the opening of the air duct gradually narrows, increasing the airflow speed and thus improving the heat dissipation efficiency.

[0021] By setting up a filter frame, the natural air blown in by the cooling fan is filtered through the first filter screen in the filter frame. After the first filter screen has been used for a long time, the staff can open the cover to easily remove the filter frame and clean the first filter screen. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the disassembled cover plate structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the mounting bracket structure of this utility model.

[0025] Reference numerals in the attached drawings: 1. Housing; 2. Cover plate; 3. Power module body; 4. Mounting hole; 5. Cooling fan; 6. Air guide frame; 7. Air guide hole; 8. Air guide pipe; 9. Mounting bracket; 10. Heat dissipation hole; 11. Heat dissipation vent; 12. Mounting port; 13. Filter frame; 14. First filter screen; 15. Second filter screen. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] refer to Figure 1 , Figure 2 and Figure 3A heat dissipation structure for a power module includes: a housing 1, a cover plate 2 fixedly installed on the top surface of the housing 1, a power module body 3 disposed inside the housing 1, two mounting holes 4 on both sides of the housing 1, and a cooling fan 5 disposed inside the mounting holes 4; and an air guide assembly disposed on both sides inside the housing 1 to increase the airflow. By setting the cooling fans 5, when the power module body 3 is installed inside the housing 1, the cooling fans 5 on both sides dissipate heat from the power module body 3 inside the housing 1, preventing the power module body 3 from overheating and affecting the power supply function. The air guide assembly includes: two air guide frames 6, which are fixedly installed on both sides inside the housing 1 respectively. Several air guide holes 7 are opened on one side of the air guide frame 6, and an air guide pipe 8 is fixedly sleeved inside the air guide hole 7. By setting the air guide pipe 8, when the cooling fan 5 is turned on, natural air enters the air guide frame 6 and is blown into the interior of the housing 1 through the air guide pipe 8. When the air passes through the air guide pipe 8, the opening of the air guide pipe 8 decreases from large to small, increasing the outflow speed and thus improving the heat dissipation efficiency.

[0028] refer to Figure 1 , Figure 2 A mounting bracket 9 is fixedly installed on one side of the air guide frame 6. Several heat dissipation holes 10 are provided on both sides of the housing 1. By setting the heat dissipation holes 10, when the power module body 3 is placed on the mounting bracket 9, a cavity is formed between the power module body 3 and the bottom of the housing 1. The heat dissipation holes 10 facilitate heat dissipation at the bottom of the power module body 3. Several heat dissipation vents 11 are provided on the top surface of the cover plate 2. By setting the heat dissipation vents 11, when the outside natural wind enters the interior of the housing 1, the hot air inside the housing 1 is squeezed upward and discharged through the heat dissipation vents 11.

[0029] refer to Figure 2 , Figure 3 The top surface of the air guide frame 6 has an installation port 12. A filter frame 13 is movably connected inside the installation port 12. A first filter screen 14 is installed inside the filter frame 13. By setting the filter frame 13, the natural air blown in by the cooling fan 5 is filtered by the first filter screen 14 in the filter frame 13. After the first filter screen 14 has been used for a long time, the staff can open the cover plate 2 to easily remove the filter frame 13 and clean the first filter screen 14. A second filter screen 15 is set inside the heat dissipation port 11 and the heat dissipation hole 10. By setting the second filter screen 15, dust is prevented from entering the inside of the housing 1 from the heat dissipation port 11 and the heat dissipation hole 10 and falling on the power module body 3, which would affect the heat dissipation effect of the power module body 3.

[0030] Working principle: Please refer to Figures 1-3As shown, during use, the operator installs the power module body 3 on the mounting bracket 9 inside the housing 1. When the power module body 3 is in operation, the cooling fan 5 is activated. The cooling fan 5 draws natural air into the air guide frame 6. The natural air is filtered through the first filter screen 14 in the filter frame 13, and then blown into the interior of the housing 1 through the air guide pipe 8. When the air passes through the air guide pipe 8, the opening of the air guide pipe 8 decreases from large to small, increasing the blowing speed. After the outside natural air enters the interior of the housing 1, the hot air inside the housing 1 is squeezed upward and discharged through the heat dissipation port 11.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 heat dissipating structure of a power module, characterized by comprising: Include: The top surface of the shell (1) is fixedly installed with a cover plate (2), the inside of the shell (1) is provided with a power module body (3), both sides of the shell (1) are provided with two mounting holes (4), the inside of the mounting hole (4) is provided with a cooling fan (5); Air guide assembly, the air guide assembly is arranged in the inside of the shell (1) two sides, for accelerating the wind speed.

2. The heat dissipation structure of a power module according to claim 1, wherein The air guide assembly includes: Two air guide frames (6) are respectively fixedly installed on both sides of the inside of the shell (1), one side of the air guide frame (6) is provided with a plurality of air guide holes (7), the inside of the air guide hole (7) is fixedly sleeved with an air guide pipe (8).

3. The heat dissipating structure of a power module according to claim 2, wherein One side of the air guide frame (6) is fixedly installed with a mounting bracket (9), both sides of the shell (1) are provided with a plurality of heat dissipation holes (10).

4. The heat dissipating structure of a power module according to claim 3, wherein The top surface of the cover plate (2) is provided with a plurality of heat dissipation openings (11).

5. The heat dissipating structure of a power module according to claim 2, wherein The top surface of the air guide frame (6) is provided with a mounting opening (12), the inside of the mounting opening (12) is movably connected with a filter frame (13), the inside of the filter frame (13) is provided with a first filter screen (14).

6. The heat dissipating structure of a power module according to claim 4, wherein The inside of the heat dissipation opening (11) and the heat dissipation hole (10) is provided with a second filter screen (15).

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