A flexible copper clad laminate

By setting mounting holes at the four corners of the copper clad laminate body and combining them with the top and bottom reinforcing frames, the bending problem caused by uneven stress in the copper clad laminate is solved, and the stable support and bending resistance of the copper clad laminate are improved.

CN224319587UActive Publication Date: 2026-06-02ZHUHAI BENQIANG TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHUHAI BENQIANG TECH CO LTD
Filing Date
2025-04-08
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing copper-clad laminates are prone to bending and deformation due to uneven stress under long-term heavy loads, which affects the performance of PCB circuit boards.

Method used

The design employs a bend-resistant copper-clad laminate. By setting mounting holes at the four corners of the copper-clad laminate body, and connecting the top and bottom reinforcing frames with elastic connectors, the frame structure is strengthened. The combination of the top and bottom reinforcing frames provides support and prevents bending deformation.

Benefits of technology

It effectively enhances the structural strength and bending resistance of copper-clad laminates, avoids bending deformation caused by uneven stress, and ensures the stability and structural support of copper-clad laminates.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a bend-resistant copper-clad laminate, including a bend-resistant copper-clad laminate. By incorporating the bend-resistant copper-clad laminate, during assembly, the top and bottom reinforcing frames are first flipped open in opposite directions via an elastic connection. Then, the copper-clad laminate body is placed on the top surface of the bottom reinforcing frame. During this process, the copper-clad laminate body is fitted onto the outside of the connecting post through the assembly hole. Subsequently, the top reinforcing frame is covered and fitted onto the edge of the top surface of the copper-clad laminate body, allowing the top reinforcing frame to be nested into the assembly hole and fitted onto the outside of the connecting post, thus completing the assembly of the bend-resistant copper-clad laminate. The top and bottom reinforcing frames provide good structural support for the copper-clad laminate body, preventing bending deformation caused by uneven stress.
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Description

Technical Field

[0001] This utility model relates to the field of copper clad laminate technology, specifically to a bend-resistant copper clad laminate. Background Technology

[0002] Copper clad laminate is a plate-shaped material made by impregnating electronic fiberglass cloth or other reinforcing materials with resin, covering one or both sides with copper foil, and then hot-pressing it. It is a commonly used electronic substrate and is widely used in the processing and manufacturing of PCB circuit boards.

[0003] Existing patent application number: CN202421583722.X A low warpage single-sided copper clad laminate includes a copper clad laminate body, the copper clad laminate body includes a copper foil layer and an anti-warpage layer coated on one side of the copper foil layer and composed of at least two polyimide layers, the thickness of the anti-warpage layer being 10-75 μm.

[0004] The aforementioned patent describes the functional structure of copper-clad laminates. In actual use, the structural performance of copper-clad laminates is closely related to that of PCB circuit boards. Since PCB circuit boards usually carry a large number of electronic components, their surface stress distribution is complex, and the supporting pressure of copper-clad laminates is relatively large. Furthermore, copper-clad laminates are supported only by the material strength of the resin substrate. Long-term weight loads can easily cause the board to bend, affecting the product's performance. Therefore, we propose a bend-resistant copper-clad laminate to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a bend-resistant copper-clad laminate to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a bend-resistant copper-clad laminate, comprising a copper-clad laminate body, mounting holes, a top reinforcing frame, a bottom reinforcing frame, an elastic connecting part, a connecting sleeve, and a connecting post. Mounting holes are provided through the four corners of the top surface of the copper-clad laminate body. A top reinforcing frame is provided covering the edge of the top surface of the copper-clad laminate body, and a bottom reinforcing frame is provided covering the edge of the bottom surface of the copper-clad laminate body. The leading edge of the top reinforcing frame and the leading edge of the bottom reinforcing frame are integrally connected by the elastic connecting part. A connecting sleeve is integrally provided at each of the four corners of the bottom surface of the top reinforcing frame. The top reinforcing frame is nested into the upper inner side of the mounting hole through the connecting sleeve. A connecting post is integrally provided at each of the four corners of the top surface of the bottom reinforcing frame, and the connecting post passes through the mounting hole and is inserted into the inner side of the connecting sleeve.

[0007] Preferably, both the top reinforcing frame and the bottom reinforcing frame are made of insulating material.

[0008] Preferably, a crease is formed in the middle of the outer side of the elastic connecting part.

[0009] Preferably, the top reinforcing frame has an integrally formed reinforcing rib along its top edge, and the reinforcing rib is made of the same material as the top reinforcing frame.

[0010] Preferably, a rubber pad strip is laid along the top edge of the bottom reinforcing frame.

[0011] Preferably, the connecting column has a through mounting hole at its center.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention utilizes an anti-bending copper-clad laminate. During assembly, the top and bottom reinforcing frames are first flipped open in opposite directions via an elastic connection. Then, the copper-clad laminate body is placed on top of the bottom reinforcing frame. During this process, the copper-clad laminate body is fitted onto the outside of the connecting post through the assembly hole. Subsequently, the top reinforcing frame is covered and fitted onto the top edge of the copper-clad laminate body, allowing the top reinforcing frame to be nested into the assembly hole and fitted onto the outside of the connecting post through the connecting sleeve. This completes the assembly of the anti-bending copper-clad laminate. The top and bottom reinforcing frames provide good structural support for the copper-clad laminate body, preventing bending deformation caused by uneven stress.

[0014] This invention incorporates reinforcing ribs along the top edge of the top reinforcing frame. These ribs enhance the rigidity and bending strength of the top reinforcing frame, providing excellent structural support for the copper-clad laminate and improving its bending resistance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the copper-clad laminate with bending resistance in this utility model;

[0016] Figure 2 This is a schematic diagram of the main structure of the copper-clad laminate in this utility model;

[0017] Figure 3 This utility model Figure 1 A schematic diagram of the structure after the main body of the copper clad laminate has been removed;

[0018] Figure 4 This is a bottom view of the top reinforcing frame in this utility model.

[0019] Figure 5 This is a schematic diagram of the bottom reinforcing frame in this utility model.

[0020] In the figure: anti-bending copper clad laminate-1, copper clad laminate body-11, assembly hole-12, top reinforcing frame-13, reinforcing rib-13a, bottom reinforcing frame-14, rubber pad strip-14a, elastic connection part-15, connecting sleeve-16, connecting post-17, mounting hole-17a. Detailed Implementation

[0021] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0022] Please see Figure 1-5 This utility model provides a bending-resistant copper-clad laminate, including a bending-resistant copper-clad laminate 1. The bending-resistant copper-clad laminate 1 includes a copper-clad laminate body 11, mounting holes 12, a top reinforcing frame 13, a bottom reinforcing frame 14, an elastic connecting part 15, a connecting sleeve 16, and a connecting post 17. Mounting holes 12 are provided through to all four corners of the top surface of the copper-clad laminate body 11. The top reinforcing frame 13 is provided covering the edge of the top surface of the copper-clad laminate body 11, and the bottom reinforcing frame 14 is provided covering the edge of the bottom surface of the copper-clad laminate body 11. The leading edge of the top reinforcing frame 13 and the leading edge of the bottom reinforcing frame 14 are connected by a cross-section. The elastic connecting parts 15 are integrally connected. The top reinforcing frame 13 has a connecting sleeve 16 integrally provided at each of the four corners of its bottom surface. The top reinforcing frame 13 is nested into the upper part of the inner side of the mounting hole 12 through the connecting sleeve 16. The bottom reinforcing frame 14 has a connecting post 17 integrally provided at each of the four corners of its top surface. The connecting post 17 passes through the mounting hole 12 and is inserted into the inner side of the connecting sleeve 16, thereby fixing the top reinforcing frame 13 and the bottom reinforcing frame 14 to the upper and lower edges of the copper clad laminate body 11, so as to improve the structural strength of the copper clad laminate body 11 and enhance its bending resistance.

[0023] When assembling the anti-bending copper clad laminate 1, the top reinforcing frame 13 and the bottom reinforcing frame 14 are first flipped open in opposite directions through the elastic connecting part 15. Then, the copper clad laminate body 11 is placed on the top surface of the bottom reinforcing frame 14. During this process, the copper clad laminate body 11 is fitted onto the outside of the connecting post 17 through the assembly hole 12. Then, the top reinforcing frame 13 is covered and attached to the top edge of the copper clad laminate body 11, so that the top reinforcing frame 13 is nested into the inside of the assembly hole 12 through the connecting sleeve 16 and fitted onto the outside of the connecting post 17, thereby completing the assembly of the anti-bending copper clad laminate 1. The top reinforcing frame 13 and the bottom reinforcing frame 14 can provide good structural support for the copper clad laminate body 11 and avoid bending deformation of the copper clad laminate body 11 due to uneven stress.

[0024] To further explain, both the top reinforcing frame 13 and the bottom reinforcing frame 14 are made of insulating material to avoid short circuits on the circuit board.

[0025] To further explain, a crease is provided in the middle of the outer side of the elastic connecting part 15, so that the elastic connecting part 15 can bend along the crease better, in order to control the opening and closing of the top reinforcing frame 13 and the bottom reinforcing frame 14.

[0026] To further explain, a reinforcing rib 13a is integrally provided on the top edge of the top reinforcing frame 13. The reinforcing rib 13a is made of the same material as the top reinforcing frame 13. The reinforcing rib 13a can further enhance the rigidity and bending strength of the top reinforcing frame 13, and can provide good structural support for the copper clad laminate body 11, avoiding bending deformation of the copper clad laminate body 11 due to uneven stress.

[0027] To further explain, a rubber pad 14a is laid along the top edge of the bottom reinforcing frame 14. The rubber pad 14a can fill the gap between the bottom reinforcing frame 14 and the copper clad laminate body 11, making the installation of the copper clad laminate body 11 and the equipment more stable and preventing the copper clad laminate body 11 from loosening during equipment operation.

[0028] To further explain, the connecting post 17 has a through mounting hole 17a in its center. The mounting hole 17a is used to install screws, so that the copper-clad laminate body 11 can still be installed with screws through the assembly hole 12 without changing the original installation method.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 bend-resistant copper-clad laminate, characterized in that: The invention includes a bend-resistant copper-clad laminate (1), which comprises a copper-clad laminate body (11), mounting holes (12), a top reinforcing frame (13), a bottom reinforcing frame (14), an elastic connecting part (15), a connecting sleeve (16), and a connecting post (17). The copper-clad laminate body (11) has mounting holes (12) through to all four corners of its top surface. The top edge of the copper-clad laminate body (11) is covered by a top reinforcing frame (13), and the bottom edge of the copper-clad laminate body (11) is covered by a bottom reinforcing frame (14). The top reinforcing frame (13) and the bottom reinforcing frame (14) are integrally connected by an elastic connecting part (15). The top reinforcing frame (13) has a connecting sleeve (16) integrally provided at each of the four corners of its bottom surface. The top reinforcing frame (13) is nested into the upper part of the inner side of the assembly hole (12) through the connecting sleeve (16). The bottom reinforcing frame (14) has a connecting post (17) integrally provided at each of the four corners of its top surface. The connecting post (17) passes through the assembly hole (12) and is inserted into the inner side of the connecting sleeve (16).

2. The copper-clad laminate with bending resistance according to claim 1, characterized in that: Both the top reinforcing frame (13) and the bottom reinforcing frame (14) are made of insulating material.

3. The copper-clad laminate with bending resistance according to claim 1, characterized in that: A crease is provided on the middle of the outer side of the elastic connecting part (15).

4. The copper-clad laminate with bending resistance according to claim 1, characterized in that: The top reinforcing frame (13) has an integral reinforcing rib (13a) along its top edge, and the reinforcing rib (13a) is made of the same material as the top reinforcing frame (13).

5. The copper-clad laminate with bending resistance according to claim 1, characterized in that: The bottom reinforcing frame (14) has a rubber pad strip (14a) laid on the top edge.

6. The copper-clad laminate with bending resistance according to claim 1, characterized in that: The connecting column (17) has a through mounting hole (17a) at its center.