Waterproof device of circuit board patch

Abstract

The utility model discloses a waterproof device for a circuit board patch, which comprises a lower waterproof plate, an upper waterproof plate and a circuit board body, a plurality of groups of heat dissipation support columns are fixedly mounted at the bottom in the lower waterproof plate, and the circuit board body is positioned on the upper surfaces of the plurality of groups of heat dissipation support columns. The side face of the lower waterproof plate is provided with a blowing assembly used for blowing and draining water into the lower waterproof plate. A drainage assembly used for one-way drainage is arranged in the lower waterproof plate. The drainage assembly comprises a drainage flow guide frame, a drainage taper pipe and a floating ball, the air blower is started to blow air into the ventilation pipe, the ventilation pipe blows air to the circuit board body through the ventilation box, the air blower blows water on the upper surface and the lower surface of the circuit board body to the drainage flow guide frame, and water flows into the drainage taper pipe through the drainage flow guide frame and flows to the outside. And when water flow exists outside, the floating ball floats upwards under the action of the water flow to block the drainage taper pipe, so that water is prevented from entering the device again, and the circuit board body is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board patches, in particular to a waterproof device for circuit board patches. Background Art

[0002] Circuit boards make circuits miniaturized and intuitive, and play an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. PCBs have at least one conductive pattern attached to them, and are provided with holes and slots to achieve interconnection between electronic components. They are the basis of almost all electronic products. Generally speaking, if there are electronic components in a certain device, they are also integrated on PCB boards of various sizes. In addition to fixing various components, the main function of PCB boards is to provide connection circuits between various components. Existing circuit board patches cannot remove moisture after being covered with water, resulting in damage to the circuit board due to blisters.

[0003] After searching, in the prior art, the authorization announcement number is: CN220693515U, which discloses a waterproof device for a circuit board patch, which relates to the technical field of circuit boards, including: a waterproof mechanism, the waterproof mechanism includes a waterproof shell, a bolt 2 is slidably installed on the inner side of the threaded ring, a waterproof ring 3 is fixedly installed on the end of the adapter away from the waterproof shell, a waterproof base is slidably installed on the lower side of the waterproof shell, and threaded fixing columns are fixedly installed on the four corners of the upper side of the waterproof base, and a mainboard body is slidably installed on the upper side of the waterproof base. The utility model adopts a designed waterproof structure, and the limiting holes at the four corners of the mainboard body are slidably installed on the threaded fixing columns fixedly installed on the upper side of the waterproof base, the groove on the lower side of the waterproof shell is aligned with the convex block of the waterproof base, and a waterproof ring 4 is fixedly installed at the connection, and the four corners of the upper side of the waterproof shell are threadedly installed on the inner side of the threaded fixing column by bolt 2, so that the waterproof shell is fixedly connected to the waterproof base, thereby achieving the effect of waterproofing the mainboard body;

[0004] The above patent still has some problems when in use. For example, when the waterproof device is bumped and water enters the inside, the moisture inside the waterproof device cannot be removed, causing the circuit board patch to be blistered for a long time, thereby causing damage to the circuit board; therefore, we need to propose a waterproof device for the circuit board patch. Utility Model Content

[0005] The purpose of the utility model is to provide a waterproof device for a circuit board patch. By starting the blower to blow air into the ventilation pipe, the ventilation pipe blows air to the circuit board body through the ventilation box. The blower blows water on the upper and lower surfaces of the circuit board body toward the drainage guide frame. The water flows into the drainage cone pipe through the drainage guide frame and flows to the outside to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waterproof device for a circuit board patch, comprising a lower waterproof plate, an upper waterproof plate and a circuit board body, wherein a plurality of groups of heat dissipation support columns are fixedly installed on the bottom of the lower waterproof plate, and the circuit board body is located on the upper surface of the plurality of groups of heat dissipation support columns, and a blowing assembly for blowing and draining the interior of the lower waterproof plate is arranged on the side of the lower waterproof plate;

[0007] A drainage component for one-way drainage is arranged inside the lower waterproof plate;

[0008] The drainage assembly includes a drainage guide frame, a drainage cone pipe and a float. The drainage guide frame is bolted to the side of the circuit board body, the drainage cone pipe is sealed and connected to the lower surface of the drainage guide frame, and the float is slidably arranged inside the drainage cone pipe.

[0009] Preferably, the drainage assembly also includes a drainage baffle, which is fixedly mounted on the lower surface of the drainage cone pipe, and a plurality of drainage holes are formed on the upper surface of the drainage baffle, and the drainage guide frame is located on the corresponding surfaces of the lower waterproof plate and the upper waterproof plate.

[0010] Preferably, the blowing assembly includes a ventilation box, a ventilation pipe, a blower and a mounting block, the blower is bolted to the upper surface of the mounting block, the ventilation pipe is sealedly connected to the blower, the ventilation box is sealedly connected to the other end of the ventilation pipe, and the ventilation box is arranged on a side of the circuit board body away from the drainage diversion frame.

[0011] Preferably, the ventilation box is bolted to the side of the lower waterproof plate, and the ventilation box is located on the corresponding surfaces of the lower waterproof plate and the upper waterproof plate, and the sides of the lower waterproof plate and the upper waterproof plate are provided with connecting grooves corresponding to the ventilation box.

[0012] Preferably, a plurality of groups of sealing installation columns are fixedly installed on the upper surface of the lower waterproof plate, and a plurality of groups of fixing bolts corresponding to the sealing installation columns are threadedly arranged on the upper surface of the upper waterproof plate.

[0013] Preferably, a heat dissipation copper sheet is sealed on the upper surface of the upper waterproof plate, and mounting grooves corresponding to the drainage guide frame are provided inside the lower waterproof plate and the upper waterproof plate.

[0014] Preferably, a plurality of groups of supporting legs are fixedly mounted on the lower surface of the lower waterproof plate, and the lower waterproof plate and the upper waterproof plate are sealed and connected together with wiring ports on their sides.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model starts the blower to blow air into the ventilation pipe, and the ventilation pipe blows air to the circuit board body through the ventilation box, and the blower blows water on the upper and lower surfaces of the circuit board body to the drainage guide frame, and the water flows into the drainage cone pipe through the drainage guide frame and flows to the outside, and when there is water flow in the outside, the float will float up under the action of the water flow to block the drainage cone pipe, thereby preventing water from entering the device again, and further preventing the moisture on the surface of the circuit board body from being unable to be removed, causing the circuit board body to be blistered for a long time, thereby protecting the circuit board body.

[0017] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the invention. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is an exploded view of the overall structure of the utility model;

[0020] Figure 3 This is a cross-sectional view of the drainage guide frame of the utility model;

[0021] Figure 4 For this utility model Figure 2 Enlarged view of point A in the middle.

[0022] In the figure: 1. Lower waterproof plate; 2. Support legs; 3. Drainage assembly; 4. Upper waterproof plate; 5. Heat dissipation copper sheet; 6. Fixing bolt; 7. Ventilation box; 8. Ventilation pipe; 9. Blower; 10. Mounting block; 11. Wiring port; 12. Circuit board body; 13. Heat dissipation support column; 14. Drainage guide frame; 15. Drainage cone pipe; 16. Float; 17. Drainage baffle; 18. Sealing mounting column; 19. Mounting groove; 20. Connection groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model provides: a waterproof device for a circuit board patch, such as Figure 1-4As shown, it includes a lower waterproof plate 1, an upper waterproof plate 4 and a circuit board body 12, a plurality of groups of heat dissipation support columns 13 are fixedly installed at the bottom of the lower waterproof plate 1, and the circuit board body 12 is located on the upper surface of the plurality of groups of heat dissipation support columns 13, and a blowing component for blowing and draining the interior of the lower waterproof plate 1 is provided on the side of the lower waterproof plate 1;

[0025] A drainage assembly 3 for one-way drainage is provided inside the lower waterproof plate 1;

[0026] The drainage assembly 3 includes a drainage guide frame 14, a drainage cone pipe 15 and a float 16. The drainage guide frame 14 is bolted to the side of the circuit board body 12, the drainage cone pipe 15 is sealed and connected to the lower surface of the drainage guide frame 14, and the float 16 is slidably arranged inside the drainage cone pipe 15. By starting the blower 9 to blow air into the ventilation pipe 8, the ventilation pipe 8 blows air to the circuit board body 12 through the ventilation box 7. The blower 9 blows water on the upper and lower surfaces of the circuit board body 12 toward the drainage guide frame 14, and the water flows into the drainage cone pipe 15 through the drainage guide frame 14 and flows to the outside. When there is water flow outside, the float 16 will float up under the action of the water flow to block the drainage cone pipe 15, thereby preventing water from entering the device again, and further preventing the moisture on the surface of the circuit board body 12 from being unable to be removed, causing the circuit board body 12 to be blistered for a long time, thereby protecting the circuit board body 12.

[0027] Preferably, the drainage component 3 also includes a drainage baffle 17, which is fixedly mounted on the lower surface of the drainage cone pipe 15, and a plurality of drainage holes are formed on the upper surface of the drainage baffle 17. The drainage guide frame 14 is located on the corresponding surfaces of the lower waterproof plate 1 and the upper waterproof plate 4. The diameter of the float 16 is larger than the top diameter of the drainage cone pipe 15 and smaller than the bottom diameter of the drainage cone pipe 15. When there is water flow in the outside, the float 16 floats up under the action of the water flow and blocks the top of the drainage cone pipe 15 to prevent water from flowing into the device through the drainage cone pipe 15. When there is water on the surface of the circuit board body 12, the blowing component blows the water into the drainage guide frame 14, and the water flows into the drainage cone pipe 15 and is retained to the outside through the drainage baffle 17.

[0028] Furthermore, the blowing assembly includes a ventilation box 7, a ventilation pipe 8, a blower 9 and a mounting block 10. The blower 9 is bolted to the upper surface of the mounting block 10. The ventilation pipe 8 is sealed to the blower 9. The ventilation box 7 is sealed to the other end of the ventilation pipe 8. The ventilation box 7 is arranged on the side of the circuit board body 12 away from the drainage guide frame 14. The blower 9 is supported by the mounting block 10. The blower 9 is started to blow air into the ventilation pipe 8. The ventilation pipe 8 blows air into the ventilation box 7, thereby blowing air into the device through the ventilation box 7, thereby blowing moisture on the surface of the circuit board body 12 toward the drainage guide frame 14 and discharged to the outside. At the same time, blowing air can enhance the ventilation effect inside the overall device and further reduce the temperature of the circuit board body 12.

[0029] Furthermore, the ventilation box 7 is bolted to the side of the lower waterproof plate 1, and the ventilation box 7 is located on the corresponding surfaces of the lower waterproof plate 1 and the upper waterproof plate 4. The sides of the lower waterproof plate 1 and the upper waterproof plate 4 are provided with connecting grooves 20 corresponding to the ventilation box 7. The ventilation box 7 is fixedly installed with the lower waterproof plate 1, and the ventilation box 7 and the lower waterproof plate 1 and the upper waterproof plate 4 are sealed with sealing rubber rings to prevent moisture from entering the interior of the device from the edge of the ventilation box 7, and the circuit board body 12 is located at the center of the ventilation box 7, thereby ensuring that wind can blow to the upper and lower surfaces of the circuit board body 12.

[0030] It is worth mentioning that a plurality of groups of sealing mounting columns 18 are fixedly installed on the upper surface of the lower waterproof plate 1, and a plurality of groups of fixing bolts 6 corresponding to the sealing mounting columns 18 are threadedly arranged on the upper surface of the upper waterproof plate 4. By arranging the sealing mounting columns 18 and inserting the fixing bolts 6 into the sealing mounting columns 18, water flow is prevented from entering the interior of the device through the fixing bolts 6.

[0031] Specifically, a heat dissipation copper sheet 5 is sealed on the upper surface of the upper waterproof plate 4, and installation grooves 19 corresponding to the drainage guide frame 14 are opened inside the lower waterproof plate 1 and the upper waterproof plate 4. The heat dissipation copper sheet 5 is provided to enhance the heat dissipation effect of the circuit board body 12, and the installation grooves 19 are provided to ensure the stability of the installation of the drainage guide frame 14 to prevent the drainage guide frame 14 from shaking.

[0032] In addition, several groups of supporting legs 2 are fixedly installed on the lower surface of the lower waterproof plate 1, and the lower waterproof plate 1 and the upper waterproof plate 4 are sealed and connected with a wiring port 11 on the side. By setting the supporting legs 2, the entire device is raised to avoid the drainage baffle 17 touching the bottom and being unable to drain water. At the same time, the wiring port 11 is set to facilitate wiring of the circuit board body 12.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waterproof device for a circuit board patch, characterized in that: The invention comprises: a lower waterproof plate (1), an upper waterproof plate (4) and a circuit board body (12); a plurality of groups of heat dissipation support columns (13) are fixedly installed on the bottom of the lower waterproof plate (1), and the circuit board body (12) is located on the upper surface of the plurality of groups of heat dissipation support columns (13); and a blowing assembly for blowing air and draining water inside the lower waterproof plate (1) is arranged on the side surface of the lower waterproof plate (1); A drainage assembly (3) for one-way drainage is arranged inside the lower waterproof plate (1); The drainage assembly (3) comprises a drainage guide frame (14), a drainage cone pipe (15) and a floating ball (16); the drainage guide frame (14) is bolted to the side of the circuit board body (12); the drainage cone pipe (15) is sealed to the lower surface of the drainage guide frame (14); and the floating ball (16) is slidably arranged inside the drainage cone pipe (15).

2. A waterproof device for a circuit board patch according to claim 1, characterized in that: The drainage assembly (3) further comprises a drainage baffle (17), wherein the drainage baffle (17) is fixedly mounted on the lower surface of the drainage cone (15), and a plurality of groups of drainage holes are formed through the upper surface of the drainage baffle (17), and the drainage guide frame (14) is located on the corresponding surfaces of the lower waterproof plate (1) and the upper waterproof plate (4).

3. A waterproof device for a circuit board patch according to claim 2, characterized in that: The blowing assembly comprises a ventilation box (7), a ventilation pipe (8), a blower (9) and a mounting block (10); the blower (9) is bolted to the upper surface of the mounting block (10); the ventilation pipe (8) is sealedly connected to the blower (9); the ventilation box (7) is sealedly connected to the other end of the ventilation pipe (8); and the ventilation box (7) is arranged on a side of the circuit board body (12) away from the drainage guide frame (14).

4. A waterproof device for a circuit board patch according to claim 3, characterized in that: The ventilation box (7) is bolted to the side of the lower waterproof plate (1), and the ventilation box (7) is located on the corresponding surfaces of the lower waterproof plate (1) and the upper waterproof plate (4), and the sides of the lower waterproof plate (1) and the upper waterproof plate (4) are provided with connection grooves (20) corresponding to the ventilation box (7).

5. The waterproof device for a circuit board patch according to claim 1, characterized in that: A plurality of groups of sealing installation columns (18) are fixedly installed on the upper surface of the lower waterproof plate (1), and a plurality of groups of fixing bolts (6) corresponding to the sealing installation columns (18) are threadedly arranged on the upper surface of the upper waterproof plate (4).

6. A waterproof device for a circuit board patch according to claim 3, characterized in that: A heat dissipation copper sheet (5) is sealed on the upper surface of the upper waterproof plate (4), and mounting grooves (19) corresponding to the drainage guide frame (14) are provided inside the lower waterproof plate (1) and the upper waterproof plate (4).

7. The waterproof device for a circuit board patch according to claim 1, characterized in that: A plurality of groups of supporting legs (2) are fixedly mounted on the lower surface of the lower waterproof plate (1), and a wiring port (11) is sealed and connected to the side surfaces of the lower waterproof plate (1) and the upper waterproof plate (4).

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