Waterproof breathable membrane assembly for PCBA (Printed Circuit Board Assembly)

By designing a protective cover structure and a waterproof and breathable membrane for the waterproof and breathable membrane assembly, the problems of PCB boards being susceptible to moisture and static interference were solved, achieving stable operation and safe protection of the PCB boards.

CN223809984UActive Publication Date: 2026-01-16CHANGCHUN HUF AUTOMOTIVE LOCK CO LTD
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Patent Information

Application Number
CN202422669084.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-04
Publication Date
2026-01-16
Estimated Expiration
2034-11-04

AI Technical Summary

Technical Problem

Existing PCB circuit boards are susceptible to moisture and static electricity in automobiles, which can lead to loss of vehicle control and pose a safety hazard.

Method used

A waterproof and breathable membrane assembly for PCBA was designed, including a protective cover structure and a waterproof and breathable membrane. The waterproof membrane body isolates moisture, the insulating layer prevents static electricity from affecting the circuit and isolates current in case of failure, and the anti-static layer and connection structure protect the PCB board.

Benefits of technology

It effectively prevents moisture infiltration and static interference, ensuring stable operation of the PCB board, reducing the risk of failure, and improving safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223809984U_ABST
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Abstract

The utility model relates to the technical field of automobile components, in particular to a waterproof breathable film component for a PCBA (printed circuit board assembly), which comprises a mounting structure and a protective cover structure, and the protective cover structure is mounted at the top of the mounting structure; the protective cover structure is composed of a protective cover body and a waterproof film body, the waterproof film body is installed at the top of the protective cover body and composed of a waterproof breathable film and an insulating layer, bonding pads are installed on the two sides of the bottom of the waterproof breathable film, and damp-proof layers are installed at the bottoms of the bonding pads. The bottom of the damp-proof layer is provided with an insulating layer, the two sides of the protection cover body are provided with grooves, the front side and the rear side of the protection cover body are provided with non-slip mats, the periphery of the bottom of the protection cover body is provided with connecting rods, and the device is simple in structure, convenient to use and high in practicability.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile assembly, specifically is a waterproof and breathable membrane assembly for PCBA. BACKGROUND

[0002] PCBA, also known as printed circuit board, printed wiring board, is an important electronic component, is the support body of electronic components, is the provider of electronic component circuit connection.

[0003] With the continuous development of science and technology, the automobile has evolved from a simple means of transportation into a highly complex electronic device. In this evolution, the PCB circuit board has played a crucial role. Automobile PCB circuit boards are an indispensable part of modern cars, and they carry various electronic components and circuits to provide stable power supply and signal transmission for cars. PCBs are widely used in cars, covering many aspects from battery management to intelligent driving. As the carrier of electronic components, automobile PCB circuit boards play a crucial role in the automotive electronic system. It not only improves the performance of the car, reduces the failure rate, but also promotes the intelligent development of the car. Automobile PCB circuit boards, as the nerve center of modern cars, are of great significance to improving car performance, reducing failure rate and promoting intelligent development, but the pcb board itself is relatively fragile, not only vulnerable to moisture, but also easily disturbed by static electricity, leading to vehicle loss of control, accidents, and greater threat to personal health. UTILITY MODEL CONTENT

[0004] In view of the deficiency of prior art, the utility model aims at providing a waterproof and breathable membrane assembly for PCBA, which aims at solving the problem that the existing technology pcb board itself is relatively fragile, not only vulnerable to moisture, but also easily disturbed by static electricity, leading to vehicle loss of control, accidents, and greater threat to personal health.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A waterproof and breathable membrane assembly for PCBA, comprising a mounting structure and a protective cover structure, the top of the mounting structure is provided with the protective cover structure;

[0007] The protective cover structure is composed of a protective cover body and a waterproof film body, the waterproof film body is installed on the top of the protective cover body, the waterproof film body is composed of a waterproof breathable film and an insulating layer, adhesive pads are installed on the both sides of the bottom of the waterproof breathable film, a moisture-proof layer is installed on the bottom of the adhesive pad, the insulating layer is installed on the bottom of the moisture-proof layer, grooves are installed on the both sides of the protective cover body, anti-skid pads are installed on the front and back sides of the protective cover body, and connecting rods are installed on the bottom of the protective cover body.

[0008] Preferably, the mounting structure is composed of a base and an anti-static layer, the top of the base is provided with a mounting groove, the anti-static layer is installed in the mounting groove, and connecting grooves are formed in the periphery of the top of the base.

[0009] Preferably, the waterproof film body is composed of a waterproof breathable film, an adhesive pad, a moisture-proof layer and an insulating layer and is integrally formed, and the waterproof film body is embedded on the top of the protective cover body.

[0010] Preferably, the protective cover body is inserted into the connecting grooves on the top of the base through the connecting rods, so that the protective cover body and the base are mounted together.

[0011] Preferably, the anti-static layer is inserted into the mounting groove and is detachable.

[0012] Preferably, the outer side of the anti-skid pad is provided with a plurality of convex pads, and the convex pads and the anti-skid pad are made of rubber material.

[0013] Preferably, a plurality of one-way air holes are formed in the grooves, and the one-way air holes are connected with the inside of the protective cover body.

[0014] Compared with the prior art, the protective cover structure has the advantages that:

[0015] The protective cover structure can protect the PCB inside the protective cover structure, the waterproof film body can effectively prevent water from penetrating into the inside of the protective cover body, the insulating layer on the waterproof film body can prevent static electricity from affecting the PCB and can isolate the current when the PCB fails to leak electricity, so that the maintenance personnel will not be electrocuted. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of the overall structure of the utility model;

[0017] Figure 2 It is a schematic view of the back side structure of the face protective cover body of the utility model;

[0018] Figure 3 It is the overall structure schematic view of the base of the utility model;

[0019] Figure 4 It is the overall structure expansion view of the waterproof membrane body of the utility model.

[0020] In the drawing: 1. mounting structure, 11. base, 111. connecting groove, 112. mounting groove, 12. anti-static barrier layer, 2. protective cover structure, 21. protective cover body, 211. groove, 212. connecting rod, 22. waterproof membrane body, 221. waterproof and breathable membrane, 222. adhesive pad, 223. moisture-proof layer, 224. insulation layer, 23. non-slip pad, 231. convex pad. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Embodiment:

[0023] Please refer to Figures 1-4 A waterproof and breathable membrane assembly for PCBA, comprising a mounting structure 1 and a protective cover structure 2, the mounting structure 1 is provided with the protective cover structure 2 on the top, the protective cover structure 2 is composed of a protective cover body 21 and a waterproof membrane body 22, the waterproof membrane body 22 is installed on the top of the protective cover body 21, the waterproof membrane body 22 is composed of a waterproof and breathable membrane 221 and an insulation layer 224, the waterproof and breathable membrane 221 is provided with adhesive pads 222 on both sides of the bottom, the adhesive pads 222 are provided with a moisture-proof layer 223 on the bottom, the moisture-proof layer 223 is provided with the insulation layer 224 on the bottom, the protective cover body 21 is provided with grooves 211 on both sides, the protective cover body 21 is provided with non-slip pads 23 on the front and back sides, the protective cover body 21 is provided with connecting rods 212 around the bottom, the connecting rods 212 can protect the pcb board in the protective cover structure 2, the waterproof membrane body 22 can effectively isolate water and prevent water from seeping into the interior of the protective cover body 21, the insulation layer 224 on the waterproof membrane body 22 can not only prevent static electricity from affecting the pcb board, but also can isolate the current when the pcb board fails to leak electricity, thereby preventing the protective cover body 21 from carrying current and causing electric shock to the maintenance personnel.

[0024] Please refer to Figure 1 and Figure 3The mounting structure 1 is composed of the base 11 and the anti-static layer 12, the top of the base 11 is provided with the mounting groove 112, the anti-static layer 12 is mounted in the mounting groove 112, the top of the base 11 is provided with the connecting groove 111 around the mounting groove 112, the pcb board can be placed in the anti-static layer 12 and the anti-static layer 12 is mounted in the mounting groove 112, the base 11 and the protective cover body 21 are connected together through the connecting groove 111, so as to protect the pcb board.

[0025] Please refer to Figure 1 and Figure 4 The waterproof film body 22 is composed of the waterproof and breathable film 221, the adhesive pad 222, the moisture-proof layer 223 and the insulation layer 224 and is integrally formed, the waterproof film body 22 is embedded on the top of the protective cover body 21, the waterproof film body 22 can effectively isolate water and prevent water from penetrating into the inside of the protective cover body 21, the insulation layer 224 on the waterproof film body 22 can not only prevent static electricity from affecting the pcb board, but also isolate the electric current when the pcb board fails to leak electricity.

[0026] Please refer to Figures 1-3 The protective cover body 21 is inserted into the connecting groove 111 on the top of the base 11 through the connecting rod 212, so that the protective cover body 21 and the base 11 are mounted together, the pcb board is mounted in the base 11, and the pcb board is protected by mounting the protective cover body 21 and the base 11 together.

[0027] Please refer to Figure 3 The anti-static layer 12 is inserted into the inside of the mounting groove 112 and can be detached, the anti-static isolation layer can be detached from the mounting groove 112, so that the pcb board is mounted or detached from the anti-static isolation layer.

[0028] Please refer to Figure 1 The outer side of the anti-skid pad 23 is provided with a plurality of convex pads 231, the convex pads 231 and the anti-skid pad 23 are made of rubber material, the convex pads 231 on the anti-skid pad 23 can increase friction, prevent the pcb board from falling and causing damage to the electronic components on the pcb board during installation.

[0029] Please refer to Figure 1 A plurality of one-way air holes are arranged in the recess 211 and communicate with the inside of the protective cover body 21, which can provide heat dissipation for the operation of the pcb board and effectively isolate dust.

[0030] Working principle: the pcb board is placed in the anti-static layer 12, and the anti-static layer 12 is installed in the mounting groove 112, the base 11 is connected with the protective cover body 21 through the connecting groove 111, so as to protect the pcb board, the pcb board is protected in the inside of the protective cover structure 2, through the waterproof film body 22, water can be effectively isolated, water is avoided to infiltrate into the inside of the protective cover body 21, the insulating layer 224 on the waterproof film body 22 not only can prevent static electricity from influencing the pcb board, and can isolate the current when the pcb board fails and leaks, avoid carrying current on the protective cover body 21, so that the maintenance personnel is electrocuted, the device is simple in structure, convenient to use and high in practicality.

[0031] All the technical features in the embodiment can be freely combined according to actual needs.

[0032] The above embodiment is a preferred implementation scheme of the utility model, in addition, the utility model can be realized in other ways, and any obvious replacement without departing from the technical scheme concept is within the protection scope of the utility model.

Claims

1. A waterproof and breathable membrane assembly for PCBA comprising a mounting structure (1) and a protective cover structure (2), characterized in that: The top of the mounting structure (1) is provided with a protective cover structure (2); The protective cover structure (2) is composed of a protective cover body (21) and a waterproof film body (22), the waterproof film body (22) is composed of a waterproof breathable film (221) and an insulation layer (224), the waterproof breathable film (221) is provided with an adhesive pad (222) on both sides of the bottom, the adhesive pad (222) is provided with a moisture-proof layer (223) on the bottom, the moisture-proof layer (223) is provided with an insulation layer (224) on the bottom, the protective cover body (21) is provided with a groove (211) on both sides, the protective cover body (21) is provided with a non-slip pad (23) on the front and back sides, and the protective cover body (21) is provided with a connecting rod (212) around the bottom.

2. A waterproof and breathable membrane (221) assembly for a PCBA according to claim 1, characterized in that: The mounting structure (1) is composed of a base (11) and an anti-static barrier layer (12), the top of the base (11) is provided with a mounting groove (112), the mounting groove (112) is provided with an anti-static barrier layer (12) inside, and the top of the base (11) is provided with a connecting groove (111) around the mounting groove (112).

3. A waterproof and breathable membrane (221) assembly for a PCBA according to claim 1, characterized in that: The waterproof film body (22) is composed of a waterproof breathable film (221), an adhesive pad (222), a moisture-proof layer (223) and an insulation layer (224) and is integrally formed, and the waterproof film body (22) is embedded on the top of the protective cover body (21).

4. A waterproof and breathable membrane (221) assembly for a PCBA according to claim 2, characterized in that: The protective cover body (21) is inserted into the connecting groove (111) on the top of the base (11) through the connecting rod (212), so that the protective cover body (21) and the base (11) are mounted together.

5. A waterproof and breathable membrane (221) assembly for a PCBA according to claim 2, characterized in that: The anti-static barrier layer (12) is inserted into the inside of the mounting groove (112), and the anti-static barrier layer (12) is detachable.

6. A waterproof and breathable membrane (221) assembly for a PCBA according to claim 2, characterized in that: The outer side of the non-slip pad (23) is provided with a plurality of convex pads (231), and the convex pads (231) and the non-slip pad (23) are made of rubber material.

7. A waterproof and breathable membrane (221) assembly for a PCBA according to claim 2, characterized in that: The inside of the groove (211) is provided with a plurality of one-way air holes, and the one-way air holes are connected with the inside of the protective cover body (21). The inside of the groove (211) is provided with a plurality of one-way air holes, and the one-way air holes are connected with the inside of the protective cover body (21).