Heat dissipation device of power supply module

Abstract

The utility model discloses a heat dissipation device of a power supply module, which belongs to the technical field of power supply heat dissipation and comprises the power supply module, an upper cover plate is hinged on the upper wall of the power supply module, an air inlet hole is arranged on the upper wall of the upper cover plate, a heat dissipation device is arranged in the air inlet hole, and the heat dissipation device comprises a fan, a fixed grating, a sliding grating, a threaded hole and a screw rod. The fan of the heat dissipation device is arranged on the upper cover plate, when the fan is cleaned, dust on the fan can be conveniently cleaned by opening the upper cover plate, meanwhile, a fixed grid and a sliding grid are further arranged in the heat dissipation device, and through cooperation of the fixed grid and the sliding grid, the heat dissipation device is more convenient to clean. When the fan is cleaned, the heat dissipation device can be closed, so that dust is further prevented from falling into the shell of the power module when the fan is cleaned, electrical elements on the circuit board are prevented from being polluted, and heat dissipation of the electrical elements on the circuit board is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of power supply heat dissipation, in particular to a heat dissipation device for a power supply module. Background Art

[0002] The computer power supply module is responsible for converting ordinary AC power to a voltage that can be used by the computer. It is usually installed inside the computer. The core components of the computer operate at very low voltages, and because the computer operates at a very high frequency, the power supply requirements are relatively high. The computer power supply is a switching circuit that converts ordinary AC power into DC power, and then controls the voltage by chopping, outputting different voltages to computer components such as the motherboard, hard drive, and optical drive.

[0003] Existing computer power modules generally dissipate heat through built-in cooling fans. However, after being used for a long time, a lot of dust will adhere to the blades of the cooling fan, affecting the air intake. At the same time, since the power module has a closed structure, it is inconvenient to remove the cooling fan. As a result, when cleaning the cooling fan, dust easily falls into the interior of the power module, affecting the internal heat dissipation efficiency. Utility Model Content

[0004] The purpose of the present utility model is to provide a heat dissipation device for a power module to solve the problem proposed in the above background technology that the power module has a closed structure and it is inconvenient to remove the cooling fan, resulting in dust easily falling into the interior of the power module when cleaning the cooling fan, thereby affecting the internal heat dissipation efficiency.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a heat dissipation device for a power module, comprising a power module, an upper cover plate hingedly connected to the upper wall of the power module, an air inlet hole being formed on the upper wall of the upper cover plate, and a heat dissipation device being installed in the air inlet hole;

[0006] The heat dissipation device includes a fan, a fixed grille, a sliding grille, a threaded hole, and a screw. The fan is installed in the air inlet and is electrically connected to the power module. The fixed grille is installed on the lower wall of the upper cover and is arranged below the fan. The lower wall of the fixed grille is provided with a threaded hole, and a screw is screwed into the threaded hole. The sliding grille is installed at the end of the screw and is arranged between the fixed grille and the fan.

[0007] The sliding grilles are arranged alternately with the fixed grilles, and the sliding grilles can seal the fixed grilles.

[0008] As a preferred embodiment of the present invention, the power module includes a shell, an air outlet slot, a dustproof net and a circuit board. The side wall of the shell is provided with an air outlet slot, the inner wall of the air outlet slot is installed with a dustproof net, the circuit board is installed on the inner wall of the shell, the circuit board is electrically connected to the external power supply, the sockets of the circuit board all pass through the side wall of the shell, and the upper cover is buckled on the upper wall of the shell.

[0009] As a preferred embodiment of the present invention, a locking bolt is inserted into the upper wall of the upper cover plate, a connecting hole is opened on the upper wall of the shell, an internal thread is provided in the connecting hole, and the locking bolt can be screwed into the connecting hole.

[0010] As a preferred embodiment of the present invention, the side wall of the sliding grille is installed with a connecting sleeve, the side wall of the connecting sleeve is inserted with a pin, the end of the screw is installed with a connecting head, the connecting head can be inserted into the connecting sleeve, and the connecting head can rotate in the connecting sleeve.

[0011] As a preferred embodiment of the present invention, a ash outlet hole is opened on the side wall of the fixed grille, and a rubber plug is inserted into the ash outlet hole to seal the ash outlet hole.

[0012] As a preferred embodiment of the present invention, a rubber pad is fitted on the side wall of the sliding grille, and the rubber pad can fit with the side wall of the fixed grille.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The fan of the heat dissipation device in this device is arranged on the upper cover. When cleaning the fan, the upper cover can be opened to facilitate cleaning of dust on the fan. At the same time, a fixed grille and a sliding grille are also provided in the heat dissipation device. Through the cooperation of the two, the heat dissipation device can be closed, further preventing dust from falling into the housing of the power module when cleaning the fan, avoiding contamination of the electrical components on the circuit board and affecting the heat dissipation of the electrical components on the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of this patent;

[0016] Figure 2 This is a side sectional view of this patent;

[0017] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at point A.

[0018] In the figure: 1 power module, 2 upper cover, 3 air inlet, 4 heat dissipation device, 5 locking bolt, 6 connecting hole, 7 connecting sleeve, 8 latch, 9 connector, 10 dust outlet, 11 shell, 12 air outlet slot, 13 dust screen, 14 circuit board, 15 rubber plug, 16 rubber pad, 41 fan, 42 fixed grille, 43 sliding grille, 44 threaded hole, 45 screw. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-3 , the utility model provides a technical solution:

[0021] In the present technical solution, a heat dissipation device for a power module includes a power module 1, an upper cover plate 2 is hingedly connected to the upper wall of the power module 1, an air inlet 3 is opened on the upper wall of the upper cover plate 2, and a heat dissipation device 4 is installed in the air inlet 3;

[0022] The heat dissipation device 4 includes a fan 41, a fixed grille 42, a sliding grille 43, a threaded hole 44, and a screw 45. The fan 41 is installed in the air inlet 3 and is electrically connected to the power module 1. The fixed grille 42 is installed on the lower wall of the upper cover 2 and is arranged below the fan 41. The lower wall of the fixed grille 42 has a threaded hole 44, and a screw 45 is screwed into the threaded hole 44. The sliding grille 43 is installed at the end of the screw 45 and is arranged between the fixed grille 42 and the fan 41.

[0023] The sliding grilles 43 and the fixed grilles 42 are arranged alternately, and the sliding grilles 43 can close the fixed grilles 42;

[0024] In this technical solution, when the device is operating normally, the fixed grille 42 and the sliding grille 43 are not in contact with each other, so that the airflow channel is unobstructed. At this time, the airflow generated by the fan 41 is blown outward, taking away the heat inside the power module 1, cooling the electrical components on the circuit board 14 inside the power module 1, and ensuring the stability of the operation of the power module 1.

[0025] When the fan 41 in the heat dissipation device 4 needs to be cleaned, the screw 45 can be rotated to lower the sliding grille 43 and fit together with the fixed grille 42. At this time, the sliding grille 43 will close the fixed grille 42, so that it separates the fan 41 from the power module 1, thereby preventing dust on the fan 41 from falling into the inside of the power module 1 when cleaning the fan 41.

[0026] In some technical solutions, the power module 1 includes a shell 11, an air outlet slot 12, a dustproof net 13 and a circuit board 14. The side wall of the shell 11 is provided with an air outlet slot 12, and the inner wall of the air outlet slot 12 is installed with a dustproof net 13. The circuit board 14 is installed on the inner wall of the shell 11. The circuit board 14 is electrically connected to the external power supply. The sockets of the circuit board 14 all pass through the side wall of the shell 11, and the upper cover 2 is buckled on the upper wall of the shell 11.

[0027] In this technical solution, external air will be filtered through the dustproof net 13 before entering the shell 11, and then discharged from the shell 11 through the suction of the fan 41. In this process, the heat inside the power module 1 will be taken away, thereby cooling the power module 1.

[0028] In some technical solutions, a locking bolt 5 is inserted into the upper wall of the upper cover plate 2, and a connecting hole 6 is opened on the upper wall of the shell 11. The connecting hole 6 is provided with an internal thread, and the locking bolt 5 can be screwed into the connecting hole 6.

[0029] In some technical solutions, a connecting sleeve 7 is installed on the side wall of the sliding grille 43, a pin 8 is inserted into the side wall of the connecting sleeve 7, a connecting head 9 is installed at the end of the screw 45, the connecting head 9 can be inserted into the connecting sleeve 7, and the connecting head 9 can rotate in the connecting sleeve 7.

[0030] In this technical solution, the connection head 9 is provided to prevent the sliding grille 43 from rotating with the screw 45 . At the same time, the latch 8 on the side wall of the connection sleeve 7 can prevent the connection head 9 from falling out of the connection sleeve 7 .

[0031] In some technical solutions, an ash outlet hole 10 is opened on the side wall of the fixed grid 42 , and a rubber plug 15 is inserted and installed in the ash outlet hole 10 , and the rubber plug 15 can seal the ash outlet hole 10 .

[0032] In this technical solution, the dust falling into the cavity formed by the fixed grille 42 and the sliding grille 43 can be cleaned by providing the dust discharge hole 10 .

[0033] In some technical solutions, a rubber pad 16 is fitted on the side wall of the sliding grille 43 , and the rubber pad 16 can fit on the side wall of the fixed grille 42 .

[0034] Working principle: When the fan 41 needs to be cleaned, the locking bolt 5 can be removed first, and then the upper cover 2 can be turned over to prevent dust from falling into the power module 1 when cleaning the fan 41. Then, the screw 45 can be rotated to lower the sliding grille 43 and fit it together with the fixed grille 42. At this time, the sliding grille 43 will close the fixed grille 42, separating the fan 41 from the power module 1, thereby preventing dust on the fan 41 from falling into the power module 1 when cleaning the fan 41.

[0035] At the same time, after the upper cover 2 is opened, the circuit board 14 in the housing 11 is also exposed, so that it is convenient for staff to clean the dust on the circuit board 14.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0037] While the present invention has been described above with reference to exemplary embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the disclosed embodiments may be combined with one another in any manner. The omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A heat dissipation device for a power module, comprising a power module (1), characterized in that: An upper cover plate (2) is hingedly connected to the upper wall of the power module (1), an air inlet hole (3) is provided on the upper wall of the upper cover plate (2), and a heat dissipation device (4) is installed in the air inlet hole (3); The heat dissipation device (4) comprises a fan (41), a fixed grille (42), a sliding grille (43), a threaded hole (44) and a screw (45); the fan (41) is installed in the air inlet (3); the fan (41) is electrically connected to the power module (1); the lower wall of the upper cover (2) is installed with a fixed grille (42); the fixed grille (42) is arranged below the fan (41); the lower wall of the fixed grille (42) is provided with a threaded hole (44); a screw (45) is screwed into the threaded hole (44); a sliding grille (43) is installed at the end of the screw (45); the sliding grille (43) is arranged between the fixed grille (42) and the fan (41); The sliding grilles (43) and the fixed grilles (42) are arranged in an alternating manner, and the sliding grilles (43) can seal the fixed grilles (42).

2. The heat dissipation device for a power module according to claim 1, wherein: The power module (1) comprises a shell (11), an air outlet slot (12), a dustproof net (13) and a circuit board (14); the side wall of the shell (11) is provided with an air outlet slot (12); the inner wall of the air outlet slot (12) is provided with a dustproof net (13); the circuit board (14) is installed on the inner wall of the shell (11); the circuit board (14) is electrically connected to an external power supply; the sockets of the circuit board (14) all pass through the side wall of the shell (11); and the upper cover (2) is buckled on the upper wall of the shell (11).

3. The heat dissipation device for a power module according to claim 2, wherein: A locking bolt (5) is inserted into the upper wall of the upper cover plate (2), and a connecting hole (6) is opened on the upper wall of the shell (11). An internal thread is provided in the connecting hole (6), and the locking bolt (5) can be screwed into and installed in the connecting hole (6).

4. The heat dissipation device for a power module according to claim 1, wherein: The side wall of the sliding grille (43) is installed with a connecting sleeve (7), the side wall of the connecting sleeve (7) is inserted with a latch (8), and the end of the screw rod (45) is installed with a connecting head (9), which can be inserted into the connecting sleeve (7) and rotated in the connecting sleeve (7).

5. The heat dissipation device for a power module according to claim 1, wherein: An ash outlet hole (10) is provided on the side wall of the fixed grid (42), and a rubber plug (15) is inserted into the ash outlet hole (10), and the rubber plug (15) can seal the ash outlet hole (10).

6. The heat dissipation device for a power module according to claim 4, characterized in that: The side wall of the sliding grille (43) is fitted with a rubber pad (16), and the rubber pad (16) can fit the side wall of the fixed grille (42).

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