PCBA circuit board with multiple sealing paint layers

Abstract

The utility model discloses a PCBA circuit board with multiple sealing paint layers, which comprises a circuit board body, a protective cover is arranged on the circuit board body, and a plurality of heat dissipation holes distributed in a linear array are formed in two ends of the protective cover; the protective cover and the convex hull structure are arranged, the circuit board body is installed in the protective cover and fixed through the screws, it can be ensured that the circuit board body is stably placed in the protective cover, the position of the circuit board body is fixed through the design of the limiting rod and the supporting sleeve, and the circuit board body is not prone to moving or shaking; the circuit board is effectively protected from being influenced and damaged by the external environment, and the heat dissipation holes are designed in the protective cover, so that air can flow through the interior of the protective cover, heat is effectively dissipated, the temperature of the circuit board body can be kept within an acceptable range, damage to circuit board elements caused by overheating is avoided, and the service life of the circuit board is prolonged. And through the design of the convex hull structure, the attachment surface of the painting layer can be increased, and the protection effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of PCBA circuit boards, in particular to a PCBA circuit board with multiple sealing paint layers. Background Art

[0002] PCBA refers to a product that fixes electronic components (such as resistors, capacitors, inductors, ICs, etc.) on a PCB (printed circuit board) by welding or plugging. PCB is the basis of PCBA. It is an insulating substrate used for electrical connections between electronic components. Through pre-designed circuit patterns and hole positions, the connection between components becomes simple and convenient.

[0003] Upon investigation, it was found that the Chinese utility model patent with publication number CN216626153U discloses a PCBA circuit board with multiple sealing paint layers, including a PCBA circuit board body, a connecting component is provided on one side of the PCBA circuit board body, a protective group layer is provided on the surface of the PCBA circuit board body, and a card slot is provided at a position different from the side of the connecting component on the PCBA circuit board body.

[0004] The PCBA circuit board is provided with a card block on one side of the PCBA circuit board body and a card slot corresponding to the card block on the other side of the PCBA circuit board body, so that when multiple PCBA circuit board bodies are installed, the card block on one PCBA circuit board body can be plugged into the card slot on another PCBA circuit board body, and the PCBA circuit board body and the docking side of the PCBA circuit board body can be stably connected together with the telescopic effect of the positioning rod and the plug-in setting at the positioning slot, so that multiple PCBA circuit board bodies are connected and firmly connected together; however, the circuit board may be impacted and collided during use, and the circuit board itself is relatively fragile and may break, which poses certain risks.

[0005] Therefore, it is necessary to design a PCBA circuit board with multiple sealing paint layers to solve the above problems. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and proposes a PCBA circuit board with multiple sealing paint layers.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A PCBA circuit board with multiple sealing paint layers comprises a circuit board body, a protective cover is arranged on the circuit board body, a plurality of heat dissipation holes distributed in a linear array are opened at both ends of the protective cover, limiting rods are fixedly installed at the four corners of the protective cover, and through holes adapted to the limiting rods are opened at the four corners of the circuit board body.

[0009] Preferably, a support sleeve is threadedly sleeved on the limiting rod, and the support sleeve is made of rubber material.

[0010] Preferably, the diameter of the heat dissipation hole at one end of the inner side of the protective cover is at least smaller than the diameter of the hole at the other end.

[0011] Preferably, a base layer is provided on the circuit board body, a side of the base layer away from the circuit board body is provided with a plurality of evenly distributed convex structures, and a side of the base layer located at the convex structures is provided with a paint layer.

[0012] Preferably, the limiting rod fits the through hole.

[0013] Preferably, both ends of the protective cover are symmetrically provided with lifting ears, and the lifting ears are provided with mounting openings.

[0014] The utility model has the following beneficial effects:

[0015] By providing a protective cover and a convex hull structure, and by installing the circuit board body in the protective cover and fixing it with screws, it is possible to ensure that the circuit board body is firmly placed inside the protective cover. The design of the limit rod and the support sleeve fixes the position of the circuit board body and makes it less likely to move or shake, thereby effectively protecting the circuit board from the influence and damage of the external environment. Heat dissipation holes are designed on the protective cover to allow air to flow through the inside of the protective cover, thereby effectively dissipating heat and helping to keep the temperature of the circuit board body within an acceptable range, avoiding damage to the circuit board components due to overheating. In addition, the design of the convex hull structure can increase the adhesion surface of the paint layer, thereby providing better protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall decomposition structure of a PCBA circuit board with multiple sealing paint layers proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the overall multi-angle structure of a PCBA circuit board with multiple sealing paint layers proposed by the utility model;

[0018] Figure 3 for Figure 1 A schematic diagram of the structure at A;

[0019] Figure 4This is a schematic diagram of the front view structure of a circuit board body of a PCBA circuit board with multiple sealing paint layers proposed by the utility model;

[0020] In the figure: 1. circuit board body; 11. perforation; 2. protective cover; 21. heat dissipation hole; 22. limit rod; 23. support sleeve; 24. lifting ear; 241. installation port; 3. base layer; 31. convex hull structure; 4. paint layer. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-4 A PCBA circuit board with multiple sealing paint layers includes a circuit board body 1, a protective cover 2 is arranged on the circuit board body 1, a plurality of heat dissipation holes 21 distributed in a linear array are opened at both ends of the protective cover 2, and a limit rod 22 is fixedly installed at the four corners of the protective cover 2, and a through hole 11 adapted to the limit rod 22 is opened at the four corners of the circuit board body 1. Through the use of the protective cover 2, the circuit board body 1 can be protected during use to avoid collision, ensuring safer use.

[0023] Reference Figure 3 A support sleeve 23 is threadedly sleeved on the limiting rod 22, and the support sleeve 23 is made of rubber material. The support sleeve 23 can limit the circuit board body 1 inside the protective cover 2, ensuring that the circuit board body 1 can be used stably.

[0024] Reference Figure 3 The diameter of the heat dissipation hole 21 at one end of the inner side of the protective cover 2 is at least smaller than that at the other end. The diameter of one end of the heat dissipation hole 21 is smaller than that at the other end, so that when air flows from the large aperture to the small aperture, it is accelerated, thereby improving the heat dissipation efficiency inside the protective cover 2.

[0025] Reference Figure 4 A base layer 3 is provided on the circuit board body 1, a side of the base layer 3 away from the circuit board body 1 is provided with a plurality of evenly distributed convex structures 31, and a side of the base layer 3 located at the convex structure 31 is provided with a paint layer 4. The convex structure 31 can increase the surface area, ensure that the adhesion surface of the paint layer 4 is larger, and the protective effect is better.

[0026] Reference Figure 1 The limiting rod 22 fits with the through hole 11, which ensures that the circuit board body 1 is more firmly fixed.

[0027] Reference Figure 2The two ends of the protective cover 2 are symmetrically provided with lifting ears 24, and the lifting ears 24 are provided with mounting openings 241. The protective cover 2 can be fixed by screws through the lifting ears 24 and the mounting openings 241.

[0028] The specific working principle of the utility model is as follows:

[0029] First, the circuit board body 1 can be installed in the protective cover 2. During installation, the circuit board body 1 can be placed in the protective cover 2, and the through hole 11 on the circuit board body 1 can pass through the limiting rod 22, and then the protective cover 2 can be placed in the position where the circuit board body 1 is used. The protective cover 2 can be fixed by screwing through the mounting port 241 on the ear 24. At this time, the circuit board body 1 can be located between the supporting sleeve 23 on the limiting rod 22 and the fixing surface to achieve stable use. During use, air can flow through the inside of the protective cover 2 through the heat dissipation hole 21 to achieve heat dissipation of the circuit board body 1.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A PCBA circuit board with multiple sealing paint layers, comprising a circuit board body (1), characterized in that: A protective cover (2) is provided on the circuit board body (1), a plurality of heat dissipation holes (21) distributed in a linear array are provided at both ends of the protective cover (2), limiting rods (22) are fixedly installed at the four corners inside the protective cover (2), and through holes (11) adapted to the limiting rods (22) are provided at the four corners of the circuit board body (1).

2. A PCBA circuit board with multiple sealing paint layers according to claim 1, characterized in that: A support sleeve (23) is threadedly sleeved on the limiting rod (22), and the support sleeve (23) is made of rubber material.

3. A PCBA circuit board with multiple sealing paint layers according to claim 1, characterized in that: The diameter of the heat dissipation hole (21) at one end inside the protective cover (2) is at least smaller than the diameter of the hole at the other end.

4. A PCBA circuit board with multiple sealing paint layers according to claim 1, characterized in that: A base layer (3) is provided on the circuit board body (1); a surface of the base layer (3) away from the circuit board body (1) is provided with a plurality of evenly distributed convex structures (31); and a paint layer (4) is provided on a surface of the base layer (3) located on the convex structures (31).

5. A PCBA circuit board with multiple sealing paint layers according to claim 1, characterized in that: The limiting rod (22) fits in with the through hole (11).

6. A PCBA circuit board with multiple sealing paint layers according to claim 1, characterized in that: Both ends of the protective cover (2) are symmetrically provided with lifting ears (24), and the lifting ears (24) are provided with mounting openings (241).

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