Waterproof circuit board
By designing waterproof components and heat-conducting structures on the circuit board, the problems of insufficient waterproofing and poor heat dissipation on the circuit board are solved, achieving rapid heat dissipation and effective waterproofing, thus improving the reliability of outdoor LED screens.
Patent Information
- Application Number
- CN202423152949.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing circuit boards, especially those in outdoor LED screens, lack sufficient waterproofing, making it difficult to dissipate heat and prone to overheating and overload issues.
A waterproof circuit board was designed, including a waterproof part, an arc-shaped strip, side clips, and a transparent plate. The transparent plate is equipped with heat-conducting beads and air channels. The waterproof part is fixed to the board body by a snap-fit structure. The heat-conducting beads and air channels are used to achieve rapid heat dissipation and waterproofing.
It achieves effective waterproofing and rapid heat dissipation of the circuit board, avoiding safety hazards caused by heat accumulation and moisture ingress, and improving the reliability for outdoor use.
Smart Images
Figure CN223772215U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circuit board technology, and specifically to a waterproof circuit board. Background Technology
[0002] A printed circuit board (PCB), also known as a circuit board, is an important electronic component. It consists of copper foil traces formed on a substrate through processes such as etching. Copper has excellent electrical conductivity, allowing current to be transmitted between different electronic components.
[0003] Existing circuit boards, especially those in outdoor LED screens, need to be waterproof. The current method is to isolate the circuit board, which requires a separate structure for the LED mounting mechanism. Moreover, internal heat is not easily dissipated, which can easily lead to overheating and overload problems. Utility Model Content
[0004] To solve the above-mentioned technical problems, this paper proposes a waterproof circuit board.
[0005] The technical solution of this utility model is implemented as follows:
[0006] A waterproof circuit board, comprising:
[0007] plate body;
[0008] Waterproof parts;
[0009] Two bow-shaped strips are provided on the upper and lower sides of one side of the plate, and arc-shaped openings are provided on both the upper and lower sides of the plate.
[0010] Lateral locking strips are fixedly connected to both the front and rear sides of the plate body located on one side of the bow-shaped strip;
[0011] The waterproof part has a groove on one side that fits with the lateral strip and a protrusion that fits with the bow-shaped strip, and the waterproof part is snapped into the plate.
[0012] Furthermore, the waterproof part includes a transparent plate, one side of which is provided with an edge strip, and multiple heat-conducting beads are provided on the transparent plate.
[0013] Furthermore, the top of the edge strip is provided with a plurality of square openings at equal intervals, an inclined plate is provided inside the square opening, an elastic strip is fixedly connected to one side of the inclined plate, the elastic strip is fixedly connected to both sides of the inner wall of the square opening, and a thin film is fixedly connected to one side of the elastic strip.
[0014] Furthermore, the thin film is in the shape of an inward arc, and the top of the thin film is fixed to the bottom of the inclined plate.
[0015] Furthermore, the bottom of the thin film has an air passage that communicates with the internal cavity of the plate.
[0016] Furthermore, the plate body includes a skirt and a circuit board portion embedded in the skirt, the circuit board portion having a fixing hole.
[0017] This utility model has the following beneficial effects:
[0018] 1. The waterproof design isolates the circuitry on the board, preventing moisture from entering and ensuring the board's safety. During operation, the board generates heat, causing the internal air to expand. This expansion can lead to moisture buildup. The design incorporates air ducts with thin films that overlap the duct openings without completely blocking them. This pre-existing opening allows for rapid heat dissipation, preventing heat buildup.
[0019] 2. When rainwater accumulates on the waterproof part, the rainwater can be diverted from the square opening and flow through the inclined plate before passing through the membrane sheet. The membrane sheet is set outward in an arc shape, so it can drain the water and form a water-hanging state on the membrane sheet. The membrane sheet can block the air duct opening, thereby improving the waterproof effect.
[0020] 3. It is equipped with multiple heat-conducting beads, which can quickly dissipate heat and balance the temperature difference between the inside and outside, preventing moisture from forming. Attached Figure Description
[0021] Figure 1 This is a perspective view of the present invention;
[0022] Figure 2 This is a schematic diagram of the present invention;
[0023] Figure 3 This is a side view of the present invention;
[0024] Figure 4 This is a utility model Figure 2 Enlarged view of point A in the middle. Detailed Implementation
[0025] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and 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 protection scope of this utility model.
[0026] Reference Figures 1 to 4 A waterproof circuit board is shown, comprising:
[0027] Waterproof component 1 includes a transparent plate 11. An edge strip 13 is provided on one side of the transparent plate 11, and multiple heat-conducting beads 12 are disposed on the transparent plate 11. Multiple square openings are evenly spaced at the top of the edge strip 13. An inclined plate 14 is disposed within each square opening. An elastic strip 15 is fixedly connected to one side of the inclined plate 14, and the elastic strip 15 is fixedly connected to both sides of the inner wall of the square opening. A thin film 16 is fixedly connected to one side of the elastic strip 15. The thin film 16 has an inwardly arc shape, and its top is fixed to the bottom of the inclined plate 14. An air passage 17 communicating with the inner cavity of the plate body 2 is opened at the bottom of the thin film 16.
[0028] The waterproof part 1 can isolate the circuit on the board 2, thus preventing water from entering the interior and ensuring the safety of the circuit board. When the circuit board is in use, heat is generated inside, which causes the air inside to expand. As a result, the expanded air accumulates and forms water vapor inside. By setting up the air passage 17, the air passage 17 opening is provided with a thin film 16 that overlaps with the air passage 17 opening and does not completely cover the air passage opening. This reserved opening can ensure that the internal heat is quickly dissipated, thus avoiding the accumulation of internal heat.
[0029] When rainwater accumulates on the waterproof part 1, the rainwater can be diverted from the square opening and flow through the inclined plate 14 before passing through the diaphragm 16. The diaphragm 16 is arc-shaped and set outward, so that the diaphragm 16 can drain the water flow. In the state of water hanging on the diaphragm 16, the diaphragm 16 can block the opening of the air passage 17, thereby improving the waterproof effect.
[0030] It should be noted that, since there will be a temperature difference between the inside and outside of the circuit board during use, which will cause moisture to form, multiple heat-conducting beads 12 are installed to dissipate heat quickly and balance the temperature difference between the inside and outside.
[0031] Two bow-shaped strips 5 are provided, one on the upper and one on the lower side of one side of the plate body 2, and each has an arc-shaped opening 4 on both sides. Lateral retaining strips 6 are fixedly connected to both the front and rear sides of the plate body 2 along the bow-shaped strips 5. The waterproof part 1 has a groove 15A on one side that fits into the lateral retaining strip 6, and a protrusion 131 that engages with the bow-shaped strip 5. The waterproof part 1 is engaged with the plate body 2. The plate body 2 includes a skirt and a circuit board part 22 embedded within the skirt, with fixing holes 21 on the circuit board part 22.
[0032] The purpose of the above structure is to quickly attach the waterproof part 1 to the circuit board.
[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A waterproof wiring board, characterized by, Include: Plate body (2); Waterproof part (1); Arch strip (5), the number of the arch strip (5) is two, two the arch strip (5) is arranged on the upper and lower sides of the plate body (2) one side respectively, and arc mouth (4) is arranged on the upper and lower sides of the plate body (2) both sides; Lateral clamping strip (6), the plate body (2) is fixedly connected with lateral clamping strip (6) on the front and rear sides of the arch strip (5) one side; Wherein, the waterproof part (1) one side is provided with the clamping groove (15A) that is combined with the lateral clamping strip (6), and the convex part (131) that is combined with the arch strip (5), the waterproof part (1) is clamped with the plate body (2).
2. The waterproof circuit board according to claim 1, wherein The waterproof part (1) includes transparent plate (11), one side of the transparent plate (11) is provided with edge strip (13), a plurality of heat-conducting beads (12) are arranged on the transparent plate (11).
3. The waterproof circuit board according to claim 2, wherein The top of the edge strip (13) is provided with a plurality of square openings at equal distances, the inclined plate (14) is arranged in the square opening, the elastic strip (15) is fixedly connected to one side of the inclined plate (14), the elastic strip (15) is fixedly connected to the inner wall of the square opening, the elastic strip (15) is fixedly connected with the film sheet (16) on one side.
4. The waterproof circuit board according to claim 3, wherein The shape of the film sheet (16) is inner arc, the top of the film sheet (16) is fixed with the bottom of the inclined plate (14).
5. The waterproof circuit board according to claim 4, wherein The bottom of the film sheet (16) is provided with air channel (17) that communicates with the inner cavity of the plate body (2).
6. A waterproof wiring board according to claim 5, wherein The plate body (2) includes a skirt edge, and a circuit board portion (22) embedded in the skirt edge, and a fixing hole (21) is formed in the circuit board portion (22).