PCB fire shield

The folded PCB fireproof cover design solves the problems of high development cost and poor flexibility of injection molds, achieving low-cost and high-efficiency fire protection and adapting to the needs of PCB boards of different specifications.

CN224596768UActive Publication Date: 2026-08-04常州市浩天办公设备有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
常州市浩天办公设备有限公司
Filing Date
2025-08-25
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

The existing injection molds for PCB fireproof covers are costly to develop, lack flexibility, and are difficult to adapt to small-batch production and specification changes.

Method used

The cover body adopts a foldable molding design, forming an integrated fixed structure through folding. This eliminates the injection molding process and utilizes the flame retardancy and insulation properties of PVC or PET materials, combined with snap-fit ​​connections and adhesive fixation, to adapt to PCB boards of different specifications.

Benefits of technology

It reduces production and preparation costs, improves production efficiency and flexibility, meets fire protection requirements, and simplifies the assembly process, reducing material costs and weight.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of fireproof cover, specifically speaking, it is a kind of PCB fireproof cover.It includes cover shell body, the cover shell body is the integrated fixed structure of folding forming, hollow chamber is formed in the middle part of the cover shell body after folding, to adapt PCB board to contain therein;The cover shell body is provided with the through-hole compatible with the external component of PCB board.Through the above technical scheme, the utility model solves the problem of high development cost of injection mold, poor flexibility.
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Description

Technical Field

[0001] This utility model relates to the field of fireproof cover technology, specifically a PCB fireproof cover. Background Technology

[0002] In the field of electronic equipment, PCB boards are core components, and the safety of their working environment is particularly important. To prevent PCB boards from catching fire and damaging external components, fireproof covers are usually installed on the outside of the PCB boards.

[0003] In existing technologies, the protective structure of PCB boards is mostly formed by plastic injection molding, which integrates the PCB board and the cover. Although this integrated structure can achieve basic protective functions, it still has the following shortcomings: On the one hand, injection molding requires customized special molds, and the mold development cost is high, which will significantly increase the overall manufacturing cost, especially for products with small batch production; on the other hand, the integrated structure has poor flexibility. When the PCB board specifications change, the mold needs to be redesigned and made, which is not very adaptable. Utility Model Content

[0004] In order to solve the problems in related technologies, this utility model provides a PCB fireproof cover, which solves the problems of high development cost and poor flexibility of injection molds.

[0005] To solve the above problems, the following technical solutions are provided:

[0006] This utility model discloses a PCB fireproof cover, including a cover body, which is a folded integral fixed structure. After folding, the cover body forms a hollow cavity in the middle to accommodate a PCB board. The cover body is provided with through holes that are compatible with external components of the PCB board.

[0007] The above solution utilizes a housing body that can be folded to form a one-piece fixed structure, eliminating the need for injection molding and specialized molds, thus significantly reducing initial production costs. Furthermore, the folding process is simple and quick to adjust, adapting to the protection requirements of different PCB board sizes and reducing production costs. This solves the problems of high development costs and poor flexibility associated with injection molds. The hollow cavity formed by folding stably accommodates the PCB board, and with through-holes compatible with external components, it ensures both protection and normal assembly and use of the PCB board. The overall structure is simple and highly practical.

[0008] Furthermore, the wall thickness of the cover body is 0.1 to 1 mm.

[0009] By adopting the above solution, the wall thickness of the housing body is 0.1 to 1 mm, which can significantly reduce the amount of material used while meeting the basic fire protection strength requirements, thus helping to reduce the cost of raw materials for the product. The thinner wall thickness makes the housing body easier to fold and process, improving the convenience and efficiency of folding and forming, while reducing the overall structural weight and not occupying too much internal space of the equipment, thus enhancing the installation adaptability of the product.

[0010] Furthermore, a first hole is provided on the side wall of the cover body near the edge, and a first bending portion that can be bent and adapted to the first hole is provided on both sides of the rear end face of the cover body; a second hole is provided on the lower end face of the cover body near the edge, and a second bending portion that can be bent and adapted to the second hole is provided at the lower end of the rear end face of the cover body.

[0011] By adopting the above solution, a first hole and a bendable first bending part, and a second hole and a bendable second bending part are provided on the side wall of the cover body, forming a mutually compatible snap-fit ​​connection structure. This design enables the cover body to achieve precise positioning during the folding and forming process, ensuring that the cover body forms a stable and fixed shape after folding, effectively improving the overall structural strength. At the same time, the matching method of the first bending part and the first hole is simple to operate and can be completed without additional auxiliary tools. This not only ensures the reliability of folding and fixing, but also simplifies the production and installation process, further improving production efficiency and reducing assembly costs.

[0012] Furthermore, a first adhesive portion is provided on both sides of the upper and lower end surfaces of the cover body, and a second adhesive portion is provided on the left side wall of the cover body. The first adhesive portion and the second adhesive portion cooperate to achieve the folding and fixing of the cover body.

[0013] The above solution provides a simple and effective connection method for folding and fixing the cover body by setting the first adhesive part and the second adhesive part. It can ensure that the cover body maintains a stable shape after folding and has good sealing performance, which can enhance the protective performance of the fireproof cover. The adhesive fixing method is flexible in operation and can adapt to the needs of different folding angles. It does not require a complex mechanical connection structure, which simplifies the overall design of the cover body, reduces the processing difficulty and material cost, and facilitates later disassembly and maintenance, thus improving the convenience of using the fireproof cover.

[0014] Furthermore, the housing body is a PVC housing body.

[0015] By adopting the above solution, the cover body is made of PVC material. PVC material itself has good flame retardant properties and insulation, which can effectively block the influence of external fire sources and high temperatures on the PCB board, meeting the core protection requirements of the fireproof cover. PVC material is relatively soft and has a certain degree of toughness, making it easy to fold and shape, and can be well adapted to the folding structure design of this utility model. At the same time, PVC material is inexpensive and widely available, which can further reduce the overall manufacturing cost of the product. It also has good chemical stability, which can adapt to the complex environment inside electronic equipment and extend the service life of the fireproof cover.

[0016] Furthermore, the housing body is a PET housing body.

[0017] By adopting the above solution and using PET material to make the shell body, PET material has excellent high temperature resistance, providing reliable fire protection while ensuring good structural stability of the shell body after folding and fixing. PET material has a smooth surface and good dimensional stability, and is not prone to wrinkles or deformation during folding and processing, which helps to ensure product consistency and assembly accuracy. At the same time, PET material has good chemical corrosion resistance and insulation, can adapt to the working environment of electronic equipment, and its environmental performance is better than some traditional materials, providing both protective performance and environmental friendliness.

[0018] The above solution has the following advantages:

[0019] 1. This utility model provides a PCB fireproof cover, comprising a cover body that is a folded, integral fixed structure. The folded cover body forms a hollow cavity in the middle to accommodate a PCB board. The cover body has through holes adapted to external components of the PCB board. Through this design, the cover body can be folded to form an integral fixed structure, eliminating the need for injection molding and specialized molds, significantly reducing initial production costs. Furthermore, the folding process is simple and quick, allowing for rapid adjustments to meet the protection requirements of different PCB board specifications, further reducing production costs and solving the problems of high development costs and poor flexibility associated with injection molds. The folded hollow cavity stably accommodates the PCB board, and the through holes adapted to external components ensure both protection and normal assembly and use of the PCB board. The overall structure is simple and highly practical.

[0020] 2. The wall thickness of the cover body is 0.1 to 1 mm, which can significantly reduce the amount of material used while meeting the basic fire protection strength requirements, thus helping to reduce the cost of raw materials. The thinner wall thickness makes the cover body easier to fold and process, improving the convenience and efficiency of folding and forming, while reducing the overall structural weight and not taking up too much internal space of the equipment, thus enhancing the installation adaptability of the product. Attached Figure Description

[0021] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0022] Figure 1 This is a structural schematic diagram of a PCB fireproof cover;

[0023] Figure 2 This is a structural schematic diagram of a PCB fireproof cover from another perspective.

[0024] Figure 3 This is a planar unfolded view of a PCB fireproof cover;

[0025] Figure 4 This is a schematic diagram of the installation of a PCB fireproof cover and a PCB board;

[0026] Figure 5 for Figure 3 Enlarged diagram of section A in the middle;

[0027] Explanation of reference numerals in the attached drawings: 1. Cover body; 2. PCB board; 3. Through hole; 4. First hole; 5. First bend; 6. Second hole; 7. Second bend; 8. First adhesive part; 9. Second adhesive part. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In specific embodiment 1, such as Figures 1-5As shown, this utility model discloses a PCB fireproof cover comprising a cover body 1, which is a folded, integral fixed structure. The folded cover body 1 forms a hollow cavity in the middle to accommodate a PCB board 2. The cover body 1 has through holes 3 that mate with external components of the PCB board 2. This cover body 1 can be folded to form an integral fixed structure, eliminating the need for injection molding and specialized molds, significantly reducing initial production costs. Furthermore, the folding process is simple and allows for quick adjustments to accommodate the protection requirements of different PCB board specifications, further reducing production costs and solving the problems of high development costs and poor flexibility associated with injection molds. The folded hollow cavity stably accommodates the PCB board 2, and the through holes 3, mate with external components, ensuring both protection and normal assembly and use of the PCB board 2. The overall structure is simple and highly practical.

[0030] The wall thickness of the housing body 1 is 0.1 to 1 mm, which can significantly reduce the amount of material used while meeting the basic fire protection strength requirements, thus helping to reduce the cost of raw materials. The thinner wall thickness makes the housing body 1 easier to fold and process, improving the convenience and efficiency of folding and forming, while reducing the overall structural weight and not taking up too much internal space of the equipment, thus enhancing the installation adaptability of the product.

[0031] like Figure 3 , 5 As shown, a first hole 4 is provided near the edge of the side wall of the cover body 1, and a first bending part 5 that can be bent and adapted to the first hole 4 is provided on both sides of the rear end face of the cover body 1; a second hole 6 is provided near the edge of the lower end face of the cover body 1, and a second bending part 7 that can be bent and adapted to the second hole 6 is provided at the lower end of the rear end face of the cover body 1. The first hole 4 and the bendable first bending part 5, and the second hole 6 and the bendable second bending part 7 provided on the side wall of the cover body 1 form a mutually adaptable snap-fit ​​connection structure. This design enables the cover body 1 to achieve precise positioning during the folding and forming process, ensuring that the cover body 1 forms a stable fixed shape after folding, effectively improving the overall structural strength; at the same time, the cooperation between the first bending part 5 and the first hole 4 is simple to operate and can be completed without additional auxiliary tools, which not only ensures the reliability of folding and fixing, but also simplifies the production and installation process, further improving production efficiency and reducing assembly costs.

[0032] like Figure 3As shown, the upper and lower ends of the cover body 1 are provided with first adhesive portions 8 on both sides, and the left side wall of the cover body 1 is provided with a second adhesive portion 9. The first adhesive portions 8 and the second adhesive portions 9 cooperate to achieve the folding and fixing of the cover body 1. The first adhesive portions 8 and the second adhesive portions 9 provide a simple and effective connection method for folding and fixing the cover body 1, which ensures that the cover body 1 maintains a stable shape after folding and has good sealing performance, thereby enhancing the protective performance of the fireproof cover. The adhesive fixing method is flexible in operation and can adapt to the needs of different folding angles. It does not require a complex mechanical connection structure, which simplifies the overall design of the cover body 1, reduces the processing difficulty and material cost, and facilitates later disassembly and maintenance, thereby improving the convenience of using the fireproof cover.

[0033] In specific embodiment 2, the difference between this embodiment and embodiment 1 is that the cover body 1 in this embodiment is a PVC cover body 1, a PET cover body 1, or any bendable cover body 1 with fireproof and insulating properties in the prior art.

[0034] The cover body 1 is made of PVC material. PVC material itself has good flame retardant properties and insulation, which can effectively block the influence of external fire sources and high temperatures on the PCB board 2, meeting the core protection requirements of the fireproof cover. PVC material is relatively soft and has a certain degree of toughness, making it easy to fold and shape, and can be well adapted to the folding structure design of this utility model. At the same time, PVC material is inexpensive and widely available, which can further reduce the overall manufacturing cost of the product. It also has good chemical stability, which can adapt to the complex environment inside electronic equipment and extend the service life of the fireproof cover.

[0035] The housing body 1 is made of PET material. PET material has excellent high temperature resistance, which provides reliable fire protection while ensuring that the housing body 1 maintains good structural stability after being folded and fixed. PET material has a smooth surface and good dimensional stability, and it is not easy to produce wrinkles or deformation during folding and processing, which helps to ensure product consistency and assembly accuracy. At the same time, PET material has good chemical corrosion resistance and insulation, which can adapt to the working environment of electronic equipment. Moreover, its environmental performance is better than some traditional materials, and it has protective performance and environmental friendliness.

[0036] In specific embodiment 3, the difference between this embodiment and embodiments 1 and 2 is that the shape of the cover body 1 in this embodiment is not limited and can be any shape in the prior art such as square or round, as long as it can be adapted to PCB boards of different specifications. That is, the specific shape of the cover body 1 does not affect the core function and can be flexibly selected according to the actual PCB board to be adapted.

[0037] During installation, first place the PCB board 2 inside the rear end face of the housing body 1; then bend the flat housing body 1 so that the first adhesive part 8 and the second adhesive part 9 are respectively attached to the inner wall of the housing body 1 and fixed by adhesive; finally bend the first bending part 5 and the second bending part 7, bending the first bending part 5 into the first hole 4 and the second bending part 7 into the second hole 6, thus completing the assembly of the PCB board 2 and the housing body 1.

[0038] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components, and can be direct connections or indirect connections through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0039] Obviously, the above embodiments are merely examples for clear illustration and are not intended to limit the implementation. For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all implementation methods here, and any obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. A PCB fireproof cover, comprising a cover body (1), characterized in that, The cover body (1) is a folded integral fixed structure. After folding, the cover body (1) forms a hollow cavity in the middle to accommodate the PCB board (2). The housing body (1) is provided with through holes (3) that are compatible with the external components of the PCB board (2).

2. A PCB fireproof cover as described in claim 1, characterized in that, The wall thickness of the cover body (1) is 0.1 to 1 mm.

3. A PCB fireproof cover as described in claim 1, characterized in that, The cover body (1) has a first hole (4) near the edge of its side wall, and the cover body (1) has a first bending part (5) on both sides of its rear end face that can be bent and adapted to the first hole (4); the cover body (1) has a second hole (6) near the edge of its lower end face, and the cover body (1) has a second bending part (7) at the lower end of its rear end face that can be bent and adapted to the second hole (6).

4. A PCB fireproof cover as described in claim 1, characterized in that, The upper and lower ends of the cover body (1) are provided with a first adhesive part (8) on both sides, and the left side wall of the cover body (1) is provided with a second adhesive part (9). The first adhesive part (8) and the second adhesive part (9) cooperate to realize the folding and fixing of the cover body (1).

5. A PCB fireproof cover as described in claim 1, characterized in that, The cover body (1) is a PVC cover body (1).

6. A PCB fireproof cover as described in claim 1, characterized in that, The cover body (1) is a PET cover body (1).