Waterproof structure of power supply module

Abstract

The utility model provides a waterproof structure of a power supply module, which belongs to the technical field of power supply modules and comprises a circuit board, a waterproof component and a mounting component. A mounting box is arranged on one side of the surface of the circuit board, and a power module is arranged in the mounting box; the top of the mounting box is provided with the mounting strip, the outer side edge of the mounting strip is connected with the first waterproof sealing ring, the inner side edge of the mounting strip is connected with the second waterproof sealing ring, and after the top of the mounting box is covered with the sealing cover, the first waterproof sealing ring and the second waterproof sealing ring are embedded in the two mounting grooves in the bottom of the sealing cover; and through the first waterproof sealing ring and the second waterproof sealing ring, water vapor can be effectively prevented from entering the mounting box to corrode the power module, and it is guaranteed that the power module is in a dry working environment.

Description

Technical Field

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

[0002] Power modules are power supplies that can be directly mounted on printed circuit boards. They are characterized by their ability to provide power to 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. In recent years, due to the rapid development of data services and the continuous promotion of distributed power supply systems, the growth rate of modular power supplies has exceeded that of primary power supplies. Modular power supplies offer isolation, strong anti-interference capabilities, built-in protection functions, and are easy to integrate. With the widespread use of semiconductor processes, packaging technologies, and high-frequency soft switching, the power density and conversion efficiency of modular power supplies are increasing, and their applications are becoming simpler. However, existing modular power supplies, by being directly mounted on circuit boards, lack waterproof protection structures, making them susceptible to corrosion when exposed to moisture or water, affecting normal operation. Utility Model Content

[0003] The purpose of this utility model is to provide a waterproof structure for a power module, so as to solve the problem mentioned in the background art that the existing power modules are directly mounted on the circuit board and the power modules do not have a waterproof protection structure, which causes corrosion when the power modules are exposed to moisture or come into contact with water, thus affecting normal operation.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a waterproof power module structure, comprising a circuit board, waterproof components, and mounting components;

[0005] Wherein: a mounting box is provided on one side of the surface of the circuit board, a power module is provided inside the mounting box, and a sealing cover is provided on the top of the mounting box;

[0006] The waterproof component includes an installation strip mounted on the top of the mounting box. The outer edge of the installation strip is connected to a first waterproof sealing ring, and the inner edge of the installation strip is connected to a second waterproof sealing ring. The bottom of the sealing cover has two mounting grooves, and the first and second waterproof sealing rings are respectively embedded in the two mounting grooves.

[0007] The mounting assembly includes mounting cylinders installed on both sides of the inner wall of the mounting box. A connecting post is inserted inside the mounting cylinder. One end of the connecting post is located inside the mounting cylinder and is fitted with a spring. The other end of the connecting post extends into the mounting box and is connected to a mounting clamp.

[0008] As a preferred embodiment of this utility model: the mounting box has slots on both sides, the sealing cover has spring pieces connected to both sides, the bottom inner side of the spring pieces is connected to a locking block, and the locking block is engaged inside the slot.

[0009] As a preferred embodiment of this utility model: the inner wall of the sealing cover is connected to a placement frame, and a drying sheet is placed inside the placement frame.

[0010] As a preferred embodiment of this utility model, the top of the sealing cover is provided with heat dissipation fins.

[0011] As a preferred embodiment of this utility model: one end of the mounting box is provided with a wiring hole, and a waterproof ring is provided inside the wiring hole.

[0012] As a preferred embodiment of this utility model: the bottom of the mounting box is connected to a mounting plate, and mounting holes are provided around the perimeter of the mounting plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) An installation strip is installed on the top of the installation box. The outer edge of the installation strip is connected to a first waterproof sealing ring, and the inner edge of the installation strip is connected to a second waterproof sealing ring. When the sealing cover is placed on the top of the installation box, the first waterproof sealing ring and the second waterproof sealing ring are embedded in the two installation grooves at the bottom of the sealing cover. The first waterproof sealing ring and the second waterproof sealing ring can effectively prevent water vapor from entering the installation box and causing corrosion to the power module, ensuring that the power module is in a dry working environment.

[0015] (2) With the provided installation components, the inner walls of the installation box are equipped with installation cylinders on both sides. The installation cylinders are connected to the inside of the installation cylinders. One end of the connection cylinder is fitted with a spring, and the other end of the connection cylinder is connected to the installation clamp. When the power module is placed inside the installation box, the power module pushes the installation clamp to move, causing the connection cylinder to slide into the installation cylinder. At this time, the spring is compressed. After the power module is installed inside the installation box, the installation clamp clamps the power module under the reaction force of the spring, so that the power module is fixed inside the installation box. 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 schematic diagram of the waterproof component structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the sealing cap of this utility model;

[0019] Figure 4 This is a schematic diagram of the installation component structure of this utility model.

[0020] In the diagram: 1. Circuit board; 2. Mounting box; 21. Sealing cover; 3. Power module; 4. Waterproof component; 41. Mounting strip; 42. First waterproof sealing ring; 43. Second waterproof sealing ring; 44. Mounting groove; 5. Mounting component; 51. Mounting cylinder; 52. Connecting post; 53. Spring; 54. Mounting clamp; 6. Slot; 7. Spring; 8. Clamp; 9. Placement frame; 10. Drying plate; 11. Heat dissipation fins; 12. Wiring hole; 13. Waterproof ring; 14. Mounting plate; 15. Mounting hole. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Please see Figures 1-4 A waterproof power module structure includes: a circuit board 1, a waterproof component 4, and a mounting component 5; a mounting box 2 is provided on one side of the surface of the circuit board 1, a power module 3 is provided inside the mounting box 2, and a sealing cover 21 is provided on the top of the mounting box 2;

[0023] Please see Figure 1 , Figure 2 The waterproof component 4 includes an installation strip 41 installed on the top of the installation box 2. The outer edge of the installation strip 41 is connected to a first waterproof sealing ring 42, and the inner edge of the installation strip 41 is connected to a second waterproof sealing ring 43. The bottom of the sealing cover 21 has two installation grooves 44, and the first waterproof sealing ring 42 and the second waterproof sealing ring 43 are respectively embedded in the two installation grooves 44.

[0024] In practical use: An installation strip 41 is installed on the top of the installation box 2. The outer edge of the installation strip 41 is connected to a first waterproof sealing ring 42, and the inner edge of the installation strip 41 is connected to a second waterproof sealing ring 43. When the sealing cover 21 is placed on the top of the installation box 2, the first waterproof sealing ring 42 and the second waterproof sealing ring 43 are embedded in the two installation grooves 44 at the bottom of the sealing cover 21. The first waterproof sealing ring 42 and the second waterproof sealing ring 43 can effectively prevent water vapor from entering the interior of the installation box 2 and causing corrosion to the power module 3, ensuring that the power module 3 is in a dry working environment.

[0025] Please see Figure 1 , Figure 4 The mounting component 5 includes mounting cylinders 51 installed on both sides of the inner wall of the mounting box 2. A connecting post 52 is inserted inside the mounting cylinder 51. One end of the connecting post 52 is located inside the mounting cylinder 51 and is fitted with a spring 53. The other end of the connecting post 52 extends into the mounting box 2 and is connected to a mounting clamp 54.

[0026] In practical use: Mounting cylinders 51 are installed on both sides of the inner wall of mounting box 2. A connecting post 52 is inserted inside the mounting cylinder 51. A spring 53 is sleeved on one end of the connecting post 52, and a mounting clamp 54 is connected to the other end of the connecting post 52. When the power module 3 is placed inside the mounting box 2, the power module 3 pushes the mounting clamp 54 to move, causing the connecting post 52 to slide into the mounting cylinder 51. At this time, the spring 53 is compressed. After the power module 3 is installed inside the mounting box 2, the mounting clamp 54 clamps the power module 3 under the reaction force of the spring 53, so that the power module 3 is fixed inside the mounting box 2.

[0027] Please see Figure 2 , Figure 3 The mounting box 2 has slots 6 on both sides, and the sealing cover 21 has spring pieces 7 on both sides. The bottom inner side of the spring piece 7 is connected to a locking block 8, which is engaged inside the slot 6.

[0028] In practical use: The mounting box 2 has slots 6 on both sides, and the sealing cover 21 has spring pieces 7 connected to both sides. The bottom inner side of the spring piece 7 is connected to a locking block 8. When the sealing cover 21 is placed on top of the mounting box 2, the locking block 8 at the bottom of the spring piece 7 engages in the slot 6, so that the sealing cover 21 is tightly connected to the mounting box 2. By pressing the spring piece 7, the locking block 8 at the bottom is disengaged from the slot 6, making it easy to remove the sealing cover 21.

[0029] Please see Figure 3 The inner wall of the sealing cover 21 is connected to a placement frame 9, and a drying sheet 10 is placed inside the placement frame 9.

[0030] In practical use: The inner wall of the sealing cover 21 is connected to the placement frame 9. The drying sheet 10 placed inside the placement frame 9 absorbs moisture and further ensures the dryness inside the installation box 2.

[0031] Please see Figure 1 , Figure 3 The top of the sealing cover 21 is provided with heat dissipation fins 11.

[0032] In practical use: the heat dissipation fins 11 on the top of the sealing cover 21 allow the heat generated by the power module 3 inside the mounting box 2 to dissipate quickly.

[0033] Please see Figure 2 , Figure 4 One end of the mounting box 2 has a wiring hole 12, and a waterproof ring 13 is provided inside the wiring hole 12.

[0034] In practical use: One end of the mounting box 2 is provided with a wiring hole 12 for connecting to the power supply. The waterproof ring 13 inside the wiring hole 12 can prevent moisture from entering the interior of the mounting box 2 through the wiring hole 12.

[0035] Please see Figure 2 , Figure 4 The bottom of the mounting box 2 is connected to a mounting plate 14, and mounting holes 15 are provided around the mounting plate 14.

[0036] In practical use: The bottom of the mounting box 2 is connected to the mounting plate 14, and the mounting plate 14 has mounting holes 15 around its perimeter, which facilitates the fixing of the mounting box 2.

[0037] An installation strip 41 is installed on the top of the installation box 2. The outer edge of the installation strip 41 is connected to a first waterproof sealing ring 42, and the inner edge of the installation strip 41 is connected to a second waterproof sealing ring 43. When the sealing cover 21 is placed on the top of the installation box 2, the first waterproof sealing ring 42 and the second waterproof sealing ring 43 are embedded in the two installation grooves 44 at the bottom of the sealing cover 21. The first waterproof sealing ring 42 and the second waterproof sealing ring 43 can effectively prevent water vapor from entering the interior of the installation box 2 and causing corrosion to the power module 3, ensuring that the power module 3 is in a dry working environment.

[0038] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A waterproof structure of a power module, characterized by, Include: The surface side of the circuit board (1) is provided with a mounting box (2), the inside of the mounting box (2) is provided with a power module (3), the top of the mounting box (2) is provided with a sealing cover (21); The waterproof assembly (4) includes a mounting strip (41) mounted on the top of the mounting box (2), the outer side edge of the mounting strip (41) is connected with a first waterproof sealing ring (42), the inner side edge of the mounting strip (41) is connected with a second waterproof sealing ring (43), the bottom of the sealing cover (21) is provided with two mounting grooves (44), and the first waterproof sealing ring (42) and the second waterproof sealing ring (43) are respectively embedded in the two mounting grooves (44); The mounting assembly (5) includes mounting cylinders (51) mounted on the inner walls of the mounting box (2), the mounting cylinders (51) are provided with connecting columns (52) inserted therein, one end of the connecting column (52) is sleeved with a spring (53) in the mounting cylinder (51), and the other end of the connecting column (52) extends into the mounting box (2) and is connected with a mounting clamp plate (54).

2. The waterproof structure of the power module according to claim 1, characterized in that: The two sides of the mounting box (2) are provided with clamping grooves (6), the two sides of the sealing cover (21) are connected with elastic sheets (7), the bottom inner side of the elastic sheet (7) is connected with a clamping block (8), and the clamping block (8) is clamped in the clamping groove (6).

3. The waterproof structure of the power module according to claim 1, characterized in that: The inner wall of the sealing cover (21) is connected with a placing frame (9), and the inside of the placing frame (9) is placed with a drying sheet (10).

4. The waterproof structure of a power module according to claim 1, characterized by: The top of the sealing cover (21) is provided with a heat dissipation fin (11).

5. The waterproof structure of a power module according to claim 1, characterized by: One end of the mounting box (2) is provided with a wiring hole (12), and the inside of the wiring hole (12) is provided with a waterproof ring (13).

6. The waterproof structure of a power module according to claim 1, characterized by: The bottom of the mounting box (2) is connected with a mounting plate (14), and the mounting plate (14) is provided with mounting holes (15) around.

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