A computer power supply capable of precise heat dissipation

Abstract

This utility model discloses a computer power supply capable of precise heat dissipation, including a housing, a main circuit board, and a power supply fan. The housing has a retractable air guide structure. The top of the air guide structure has an air inlet corresponding to the power supply fan. The bottom wall of the air inlet has a first air duct, a second air duct, a third air duct, and a fourth air duct connecting to the bottom of the air guide structure. The first air duct corresponds to the main transformer, the second air duct corresponds to two DC-DC modules, the third air duct corresponds to the two DC-DC modules and the PFC inductor, and the fourth air duct corresponds to the auxiliary transformer. The third and fourth air ducts each correspond to portions of the PFC circuit board. A retractable filter assembly is also mounted on the air guide structure. This design enables precise heat dissipation for the main transformer, the two DC-DC modules, the PFC inductor, the PFC circuit board, the two bridge rectifiers, and the auxiliary transformer. The air guide structure is easily removable from the housing, and the filter assembly prevents dust from entering the main circuit board.

Description

Technical Field

[0001] This utility model relates to the field of computer power supply technology, and in particular to a computer power supply that can achieve precise heat dissipation. Background Technology

[0002] A computer power supply is a component installed inside a computer case. Its function is to supply power to the system board, various adapters and expansion cards, hard drives, optical drives, keyboards, and mice inside the case. Computer power supplies operate at high temperatures, so a cooling device is needed to lower the internal temperature of the power supply and ensure its normal operation.

[0003] In the prior art, a computer power supply is disclosed, which includes a main circuit board and a power supply fan located above the main circuit board. The main circuit board is equipped with a main transformer, two DC-DC modules, a PFC inductor, a PFC circuit board, two bridge rectifiers, and a secondary transformer. Compared with other components such as AC plugs, adapter boards, EMI inductors, EMI capacitors, and PFC inductors located on the main circuit board, these components generate more heat during operation. In this structure, the power supply fan blows directly onto the entire main circuit board, causing the airflow from the power supply fan to be dispersed across the entire main circuit board, resulting in low heat dissipation efficiency. Furthermore, the power supply fan easily blows external dust onto the main circuit board, leading to dust accumulation on the main circuit board. Cleaning requires disassembling the computer power supply casing first, which is a cumbersome process and causes inconvenience for users.

[0004] Therefore, it is necessary to design a new technical solution to solve the above problems. Utility Model Content

[0005] In view of the above, this utility model addresses the deficiencies of the existing technology, and its main objective is to provide a computer power supply that can achieve precise heat dissipation. This is achieved by incorporating a pull-out airflow structure within the housing, which includes a first airflow channel, a second airflow channel, a third airflow channel, and a fourth airflow channel. This allows for precise heat dissipation of the main transformer, two DC-DC modules, the PFC inductor, the PFC circuit board, two bridge rectifiers, and the secondary transformer. Furthermore, the airflow structure is easily removable from the housing for cleaning. Additionally, a pull-out filter assembly is installed on the airflow structure to prevent dust from entering the main circuit board. The filter assembly is also easily removable from the airflow structure for cleaning, making disassembly and assembly convenient.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A computer power supply capable of precise heat dissipation includes a housing and a main circuit board and a power supply fan disposed within the housing. The power supply fan is located above the main circuit board. The top of the main circuit board is electrically connected to an AC plug, an adapter board, a main transformer, two DC-DC modules, a PFC inductor, a PFC circuit board, two bridge rectifiers, and a secondary transformer.

[0008] The housing is retractable and equipped with an air guide structure. The air guide structure is located between the bottom of the power fan and the top of the main circuit board. The top of the air guide structure is provided with an air inlet slot corresponding to the power fan. The bottom wall of the air inlet slot is provided with a first air duct, a second air duct, a third air duct, and a fourth air duct that connect to the bottom of the air guide structure. The first air duct is provided with the main transformer. The second air duct is provided with two DC-DC modules. The third air duct is provided with two DC-DC modules and a PFC inductor. The fourth air duct is provided with the auxiliary transformer. The third and fourth air ducts are respectively provided with parts of the PFC circuit board.

[0009] The air guide structure is equipped with a retractable filter assembly, which passes through the air inlet slot and covers the first air duct, the second air duct, the third air duct, and the fourth air duct.

[0010] As a preferred embodiment, a first pull-out opening is provided on one side of the housing, which connects to the inside of the housing. The air guide structure is pulled out and installed inside the housing through the first pull-out opening, and the AC plug is exposed below the first pull-out opening.

[0011] As a preferred embodiment, the housing has several heat dissipation holes on the side of the AC plug.

[0012] As a preferred embodiment, the wall of the housing is provided with two guide rails on both sides corresponding to the first pull-out opening. Correspondingly, both sides of the air guide structure are provided with guide grooves that match the guide rails. The air guide structure can be pulled out and installed in the housing through the cooperation of the guide grooves and guide rails. The guide grooves are provided with protruding locking protrusions. Correspondingly, the guide rails are provided with recessed slots for the locking protrusions to be engaged. The locking protrusions are engaged in the slots to fix the air guide structure in the housing.

[0013] As a preferred embodiment, the first, second, third, and fourth air ducts are all arranged in a gradually decreasing manner from the air inlet to the air outlet.

[0014] As a preferred embodiment, the adapter board is located on the front side of the housing, the main transformer is located on the rear side of the adapter board, and both DC-DC modules are located on the left side of the main transformer; the PFC circuit board is located on the right side of the main transformer, and the PFC inductor and the secondary transformer are arranged sequentially and spaced apart, all located on the right side of the PFC circuit board; the AC plug, the two bridge rectifiers, and the PFC inductor are arranged sequentially and spaced apart from left to right, all located in the rear area of ​​the main transformer.

[0015] As a preferred embodiment, the filter assembly includes a frame and a mesh disposed within the area enclosed by the frame. The air guide structure has a pull-out groove that connects to the air inlet slot. The pull-out groove has a second pull-out opening exposed outside the housing. The frame can be pulled out and disposed in the pull-out groove through the second pull-out opening.

[0016] As a preferred embodiment, the air guide structure is provided with a first magnetic element at the end of the pull-out slot away from the second pull-out opening. Correspondingly, the frame is provided with a second magnetic element that matches the first magnetic element. The second magnetic element is attracted to the first magnetic element to fix the filter assembly inside the air guide structure.

[0017] As a preferred embodiment, the air guide structure has a first mounting groove that connects to the pull-out groove. The height dimension of the first mounting groove is greater than the height dimension of the pull-out groove. The first magnetic component is fixed in the first mounting groove by a first cover plate. The bottom of the frame has a second mounting groove that opens upwards. The second magnetic component is fixed in the second mounting groove by a second cover plate.

[0018] As a preferred embodiment, both the air guide structure and the filter assembly are equipped with handles that are easy to pull out.

[0019] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0020] The main feature is that the housing has a removable air guide structure with four ducts, which enables precise heat dissipation for the main transformer, two DC-DC modules, PFC inductor, PFC circuit board, two bridge rectifiers, and auxiliary transformer. The air guide structure is also easily removed from the housing for cleaning. Furthermore, the air guide structure has a removable filter assembly that prevents dust from entering the main circuit board. The filter assembly is also easily removed from the air guide structure for cleaning, making disassembly and assembly convenient.

[0021] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0022] Figure 1 This is a rear view structural diagram of a preferred embodiment of the present utility model;

[0023] Figure 2 This is a cross-sectional view of a preferred embodiment of the present invention;

[0024] Figure 3 This is a top view of the main circuit board of a preferred embodiment of the present invention.

[0025] Figure 4 This is a bottom view of the air guide structure of a preferred embodiment of the present utility model;

[0026] Figure 5 This is a cross-sectional view of the air guide structure of a preferred embodiment of the present utility model;

[0027] Figure 6 This is a schematic diagram of the installation structure of the filter assembly according to a preferred embodiment of the present invention.

[0028] Explanation of reference numerals in the attached diagram:

[0029] 10. Housing; 101. First pull-out opening;

[0030] 102. Heat dissipation holes; 103. Guide rail;

[0031] 20. Main circuit board; 21. AC plug;

[0032] 22. Adapter board; 23. Main transformer;

[0033] 24. DC-DC module; 25. PFC inductor;

[0034] 26. PFC circuit board; 27. Bridge rectifier;

[0035] 28. Secondary transformer; 201. Annular heat dissipation space;

[0036] 30. Power supply fan; 40. Air guide structure;

[0037] 41. Guide groove; 42. Engraving;

[0038] 401. Air inlet duct; 402. First air duct;

[0039] 403. Second air duct; 404. Third air duct;

[0040] 405. Fourth air duct; 406. Pull-out slot;

[0041] 407. Second pull-out opening; 408. First mounting slot;

[0042] 409. First cover plate; 50. Filter assembly;

[0043] 51. Frame; 52. Mesh;

[0044] 501. Second mounting slot; 502. Second cover plate;

[0045] 60. First magnetic component; 70. Second magnetic component;

[0046] 80. Handle. Detailed Implementation

[0047] First, it should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0048] Please refer to Figures 1 to 6 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including a housing 10 and a main circuit board 20 and a power fan 30 disposed within the housing 10.

[0049] The power supply fan 30 is located above the main circuit board 20. The top of the main circuit board 20 is electrically connected to an AC plug 21, an adapter board 22, a main transformer 23, two DC-DC modules 24, a PFC inductor 25, a PFC circuit board 26, two bridge rectifiers 27, and a secondary transformer 28.

[0050] Specifically, see Figure 3 As shown, the adapter plate 22 is located on the front side inside the housing 10, the main transformer 23 is located on the rear side of the adapter plate 22, and both DC-DC modules 24 are located on the left side of the main transformer 23; the PFC circuit board 26 is located on the right side of the main transformer 23, and the PFC inductor 25 and the auxiliary transformer 28 are arranged sequentially and spaced apart, all located on the right side of the PFC circuit board 26; the AC plug 21, the two bridge rectifiers 27, and the PFC inductor 25 are arranged sequentially and spaced apart from left to right, all located in the rear area of ​​the main transformer 23; wherein, the outer periphery of the main transformer 23 has an annular heat dissipation space 201, the setting of the annular heat dissipation space 201 can prevent the heat of the main transformer 23 from damaging the components near the main transformer 23; other components on the main circuit board 20 are not described in detail here.

[0051] See Figure 1 and Figure 2As shown, the housing 10 is equipped with a retractable air guide structure 40, which is located between the bottom of the power fan 30 and the top of the main circuit board 20; specifically, see [reference needed]. Figure 4 and Figure 5 As shown, the top of the air guide structure 40 is provided with an air inlet slot 401 corresponding to the power fan 30. The bottom wall of the air inlet slot 401 is provided with a first air duct 402, a second air duct 403, a third air duct 404, and a fourth air duct 405 that connect to the bottom of the air guide structure 40. The first air duct 402 is provided with the main transformer 23, the second air duct 403 is provided with two DC-DC modules 24, the third air duct 404 is provided with two DC-DC modules 24 and a PFC inductor 25, and the fourth air duct 405 is provided with the auxiliary transformer 28. The third air duct 404 and the fourth air duct 405 are respectively provided with parts of the PFC circuit board 26. The third air duct 404 and the fourth air duct 405 can work together to dissipate heat from the PFC circuit board 26 without the need for an additional air duct, making the air guide structure 40 easier to manufacture.

[0052] Furthermore, a first pull-out port 101 communicating with the interior of the housing 10 is provided on one side of the housing 10. The air guide structure 40 is pull-out and installed inside the housing 10 through the first pull-out port 101. The AC plug 21 is exposed below the first pull-out port 101. Several heat dissipation holes 102 are provided on the side of the AC plug 21. The first pull-out port 101 and the AC plug 21 are set on the same side, so that the first pull-out port 101 can be exposed outside the computer case when assembled with the computer case, which facilitates the disassembly and assembly of the air guide structure 40. Preferably, the first air duct 402, the second air duct 403, the third air duct 404, and the fourth air duct 405 are all arranged in a gradually decreasing shape from the air inlet to the air outlet, so that the air duct can more comprehensively cover the corresponding components. The gradually decreasing shape is a structure that is larger at the top and smaller at the bottom, so that the airflow is slower when it enters from the large diameter (reducing the air intake resistance) and faster at the small diameter outlet, improving ventilation efficiency and thus improving the heat dissipation efficiency of the components.

[0053] In this embodiment, two guide rails 103 are provided on the walls of the housing 10 corresponding to the two sides of the first pull-out port 101. Correspondingly, guide grooves 41 matching the guide rails 103 are provided on both sides of the air guide structure 40. The air guide structure 40 can be pulled out and installed in the housing 10 through the cooperation of the guide grooves 41 and the guide rails 103. A locking protrusion 42 is provided in the guide groove 41. Correspondingly, a locking groove (not shown in the figure) is provided in the guide rail 103 for the locking protrusion 42 to be locked. The locking protrusion 42 is locked in the locking groove to fix the air guide structure 40 in the housing 10. The setting of the locking protrusion 42 and the locking groove can fix the air guide structure 40 after it is assembled in the housing 10, preventing the air guide structure 40 from easily falling out of the housing 10.

[0054] The air guiding structure 40 is equipped with a retractable filter assembly 50. The filter assembly 50 passes through the air inlet slot 401 and covers the first air duct 402, the second air duct 403, the third air duct 404, and the fourth air duct 405. Specifically, the filter assembly 50 includes a frame 51 and a mesh 52 disposed within the area enclosed by the frame 51. The air guiding structure 40 has a pull-out slot 406 that communicates with the air inlet slot 401. The pull-out slot 406 has a second pull-out opening 407 exposed outside the housing 10. The frame 51 is retractably disposed in the pull-out slot 406 through the second pull-out opening 407.

[0055] See Figure 5 and Figure 6 As shown, the air guide structure 40 has a first magnetic component 60 at the end of the pull-out slot 406 away from the second pull-out port 407. Correspondingly, the frame 51 has a second magnetic component 70 that matches the first magnetic component 60. The second magnetic component 70 is attracted to the first magnetic component 60 to fix the filter assembly 50 in the air guide structure 40. The first magnetic component 60 and the second magnetic component 70 can be magnets that magnetically attract each other, achieving quick assembly and fixation through magnetic attraction, thereby facilitating the disassembly and assembly of the filter assembly 50. The air guide structure 40 has a connecting... The first mounting groove 408 of the pull-out groove 406 has a height dimension greater than that of the pull-out groove 406. The first magnetic component 60 is fixed in the first mounting groove 408 by the first cover plate 409. The bottom of the frame 51 is provided with a second mounting groove 501 facing upward. The second magnetic component 70 is fixed in the second mounting groove 501 by the second cover plate 502. The arrangement of the first mounting groove 408 and the second mounting groove 501 allows the first magnetic component 60 and the second magnetic component 70 to be fixed in the corresponding air guide structure 40 and frame 51.

[0056] In this embodiment, both the air guide structure 40 and the filter assembly 50 are provided with handles 80 for easy pulling. The handles 80 facilitate the removal of the filter assembly 50 from the air guide structure 40 and the removal of the air guide structure 40 from the housing 10.

[0057] The key design feature of this utility model is:

[0058] The main feature is that the housing has a removable air guide structure with four ducts, which enables precise heat dissipation for the main transformer, two DC-DC modules, PFC inductor, PFC circuit board, two bridge rectifiers, and auxiliary transformer. The air guide structure is also easily removed from the housing for cleaning. Furthermore, the air guide structure has a removable filter assembly that prevents dust from entering the main circuit board. The filter assembly is also easily removed from the air guide structure for cleaning, making disassembly and assembly convenient.

[0059] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A computer power supply capable of precise heat dissipation, comprising a housing and a main circuit board and a power supply fan disposed within the housing, wherein the power supply fan is located above the main circuit board, and the top of the main circuit board is electrically connected to an AC plug, an adapter board, a main transformer, two DC-DC modules, a PFC inductor, a PFC circuit board, two bridge rectifiers, and a secondary transformer; characterized in that: The housing is retractable and equipped with an air guide structure. The air guide structure is located between the bottom of the power fan and the top of the main circuit board. The top of the air guide structure is provided with an air inlet slot corresponding to the power fan. The bottom wall of the air inlet slot is provided with a first air duct, a second air duct, a third air duct, and a fourth air duct that connect to the bottom of the air guide structure. The first air duct is provided with the main transformer. The second air duct is provided with two DC-DC modules. The third air duct is provided with two DC-DC modules and a PFC inductor. The fourth air duct is provided with the auxiliary transformer. The third and fourth air ducts are respectively provided with parts of the PFC circuit board. The air guide structure is equipped with a retractable filter assembly, which passes through the air inlet slot and covers the first air duct, the second air duct, the third air duct, and the fourth air duct.

2. The computer power supply capable of precise heat dissipation according to claim 1, characterized in that: The housing has a first pull-out opening on one side that connects to the inside of the housing. The air guide structure is pulled out and installed inside the housing through the first pull-out opening. The AC plug is exposed below the first pull-out opening.

3. A computer power supply capable of precise heat dissipation according to claim 2, characterized in that: The housing has several heat dissipation holes on the side of the AC plug.

4. A computer power supply capable of precise heat dissipation according to claim 2, characterized in that: The wall of the housing is provided with two guide rails on both sides corresponding to the first pull-out opening. Correspondingly, both sides of the air guide structure are provided with guide grooves that match the guide rails. The air guide structure can be pulled out and installed in the housing through the cooperation of the guide grooves and guide rails. The guide grooves are provided with protruding locking protrusions. Correspondingly, the guide rails are provided with recessed locking grooves for the locking protrusions to be engaged. The locking protrusions are engaged in the locking grooves to fix the air guide structure in the housing.

5. A computer power supply capable of precise heat dissipation according to claim 1, characterized in that: The first, second, third, and fourth air ducts are all arranged in a gradually decreasing manner from the air inlet to the air outlet.

6. A computer power supply capable of precise heat dissipation according to claim 1, characterized in that: The adapter plate is located on the front side inside the housing, the main transformer is located on the rear side of the adapter plate, and both DC-DC modules are located on the left side of the main transformer; the PFC circuit board is located on the right side of the main transformer, and the PFC inductor and the secondary transformer are arranged sequentially and spaced apart, all located on the right side of the PFC circuit board; the AC plug, the two bridge rectifiers, and the PFC inductor are arranged sequentially and spaced apart from left to right, all located in the rear area of ​​the main transformer.

7. A computer power supply capable of precise heat dissipation according to claim 1, characterized in that: The filter assembly includes a frame and a mesh disposed within the area enclosed by the frame. The air guide structure has a pull-out groove that connects to the air inlet slot. The pull-out groove has a second pull-out opening exposed outside the housing. The frame can be pulled out and disposed in the pull-out groove through the second pull-out opening.

8. A computer power supply capable of precise heat dissipation according to claim 7, characterized in that: The air guide structure is provided with a first magnetic component at the end of the pull-out slot away from the second pull-out opening. Correspondingly, the frame is provided with a second magnetic component that matches the first magnetic component. The second magnetic component is attracted to the first magnetic component to fix the filter assembly inside the air guide structure.

9. A computer power supply capable of precise heat dissipation according to claim 8, characterized in that: The air guide structure has a first mounting groove that connects to the pull-out groove. The height dimension of the first mounting groove is greater than the height dimension of the pull-out groove. The first magnetic component is fixed in the first mounting groove by a first cover plate. The bottom of the frame has a second mounting groove that opens upwards. The second magnetic component is fixed in the second mounting groove by a second cover plate.

10. A computer power supply capable of precise heat dissipation according to claim 1, characterized in that: Both the air guide structure and the filter assembly are equipped with handles for easy pulling.

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