Flexible circuit board with anti-breaking function

Abstract

The utility model relates to flexible circuit board technical field especially relates to a flexible circuit board with anti -break function. The utility model provides such a flexible circuit board with anti -break function, including circuit board body, metal circuit, reinforcing layer and elastic layer, the circuit board body surface is provided with many metal circuits, the circuit board body top and bottom all are provided with reinforcing layer, and the reinforcing layer surface is provided with elastic layer, still including heat conduction plate and heat conduction piece, and the lower elastic layer bottom is provided with heat conduction plate, and the heat conduction plate front and back both sides all are fixedly connected with many heat conduction pieces. Through heat conduction plate, the heat generated in the working process of flexible circuit board is conducted to outside, and heat conduction piece increases the contact area with air, helps heat conduction plate to dissipate heat quickly, makes heat spread to the surrounding air rapidly, can effectively avoid long time high temperature and lead to flexible circuit board material ageing or performance decline, thereby guarantees normal working state.

Description

Technical Field

[0001] This utility model relates to the field of flexible circuit board technology, and in particular to a flexible circuit board with anti-breakage function. Background Technology

[0002] Flexible printed circuit boards (FPCBs) are circuit boards with flexibility, mainly composed of flexible substrates (such as polyimide, PET, etc.) and metal circuits (such as copper foil). They can be bent, folded, or twisted while maintaining their electrical properties and mechanical stability. FPCBs are widely used in consumer electronics, automotive electronics, medical devices, and other fields, especially in applications that require space saving, dynamic bending, or complex shapes.

[0003] Patent publication number CN213462440U discloses a fracture-resistant flexible circuit board, including an FPC substrate. The FPC substrate has circuit wires on its surface and edging on both sides. The edging has a C-shaped structure and is positioned opposite to each other. The FPC substrate is embedded between the two ends of the edging. The edging is made of flexible rubber, and an adhesive layer is provided between the edging and the FPC substrate. While this patent uses an adhesive layer to bond and fix the edges of the FPC substrate to the edging, preventing further breakage and ensuring the normal use of the flexible circuit board, in actual use, the lack of heat dissipation capability means that the heat on the flexible circuit board cannot be effectively dissipated. Prolonged exposure to high temperatures can lead to material aging or performance degradation, thus affecting its normal operation.

[0004] Therefore, a flexible circuit board with anti-breakage and heat dissipation functions is needed. Summary of the Invention

[0005] In order to overcome the shortcomings of current technology in practical use, where flexible circuit boards lack heat dissipation function and cannot effectively dissipate heat, resulting in material aging or performance degradation due to prolonged exposure to high temperatures, thus affecting their normal operation, this utility model provides a flexible circuit board with anti-breakage and heat dissipation functions.

[0006] The technical solution is: a flexible circuit board with anti-breakage function, including a circuit board body, metal lines, a reinforcing layer and an elastic layer. Multiple metal lines are provided on the surface of the circuit board body. Reinforcing layers are provided at the top and bottom of the circuit board body. An elastic layer is provided on the surface of the reinforcing layer. It also includes a heat-conducting plate and heat-conducting sheets. A heat-conducting plate is provided at the bottom of the lower elastic layer. Multiple heat-conducting sheets are fixedly connected to the front and rear sides of the heat-conducting plate.

[0007] Furthermore, it also includes a limiting plate, a locking block, a guide rod, a limiting seat, and an elastic element. Two limiting plates are fixedly connected to the top of the upper elastic layer. Locking blocks are fixedly connected to both the front and rear sides of the limiting plates. Two guide rods are fixedly connected to both the front and rear sides of the heat-conducting plate. The two guide rods are slidably provided with a limiting seat. A locking groove is opened on the upper part of the limiting seat, and the locking block can be locked into the locking groove. An elastic element is sleeved on the end of the guide rod away from the heat-conducting plate. The two ends of the elastic element are connected to the limiting seat and the guide rod, respectively.

[0008] Furthermore, it also includes reinforcing ribs, with multiple reinforcing ribs provided on the surface of the elastic layer.

[0009] Furthermore, multiple heat-conducting holes are formed on the elastic layer.

[0010] Furthermore, it also includes reinforcing plates, with reinforcing plates fixedly connected to both sides of the elastic layer.

[0011] Furthermore, the elastic layer is made of graphene material.

[0012] Compared with the prior art, this utility model provides a flexible circuit board with anti-breakage function, which has the following beneficial effects: 1. The heat generated by the flexible circuit board during operation is conducted to the outside through the heat-conducting plate, and the heat-conducting sheet helps the heat-conducting plate to quickly dissipate heat by increasing the contact area with the air, so that the heat can be quickly diffused into the surrounding air, which can effectively avoid the aging or performance degradation of the flexible circuit board material caused by long-term high temperature, thereby ensuring its normal working state.

[0013] 2. The circuit board body is reinforced with top and bottom reinforcing layers to prevent metal circuits from breaking due to bending or impact; an elastic layer covers the surface of the reinforcing layer to provide cushioning and further absorb external stress (such as vibration or deformation), thereby protecting the internal structure.

[0014] 3. By loosening the limit seat, the elastic element returns to its original shape, pushing the limit seat inward. At this time, the card block is inserted into the card slot, thereby reinforcing the entire flexible circuit board and preventing the circuit board body, reinforcement layer, and elastic layer from loosening during long-term use. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the circuit board body, elastic layer, and heat-conducting plate of this utility model.

[0017] Figure 3 This is an exploded view of the circuit board body, reinforcing layer, and heat-conducting plate of this utility model.

[0018] Figure 4This is a three-dimensional sectional view of the elastic layer, limiting plate, and limiting seat of this utility model.

[0019] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle.

[0020] The component names and serial numbers in the figure are as follows: 1. Circuit board body, 2. Metal circuit, 3. Reinforcing layer, 4. Elastic layer, 5. Reinforcing rib, 6. Heat-conducting plate, 7. Heat-conducting sheet, 8. Limiting plate, 9. Locking block, 10. Guide rod, 11. Limiting seat, 12. Locking groove, 13. Elastic component, 14. Heat-conducting hole, 15. Reinforcing plate. Detailed Implementation

[0021] 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.

[0022] Example 1: A flexible circuit board with anti-breakage function, please refer to... Figures 1-5 The circuit board includes a circuit board body 1, metal lines 2, a reinforcing layer 3, and an elastic layer 4. Several metal lines 2 are arranged on the surface of the circuit board body 1. Reinforcing layers 3 are provided at both the top and bottom of the circuit board body 1. An elastic layer 4 is provided on the surface of the reinforcing layer 3. A heat-conducting plate 6 is provided at the bottom of the lower elastic layer 4. Several heat-conducting sheets 7 are fixedly connected to both the front and rear sides of the heat-conducting plate 6. The heat-conducting sheets 7 increase the contact area between the heat-conducting plate 6 and the air, allowing heat to quickly diffuse into the surrounding air. Several reinforcing ribs 5 are provided on the surface of the elastic layer 4 to improve its tensile strength and reduce long-term... To mitigate the risk of deformation during use, the elastic layer 4 has several heat-conducting holes 14 to accelerate heat flow, aid in heat dissipation, and further improve the heat dissipation effect. Reinforcing plates 15 are fixedly connected to both sides of the elastic layer 4 to provide additional support on both sides of the elastic layer 4, preventing edge warping or tearing during the soldering of the flexible circuit board. The elastic layer 4 is made of graphene material, which has extremely high mechanical strength and flexibility, and can withstand repeated bending and folding without easily breaking. This allows the elastic layer 4 to provide reliable buffering when the flexible circuit board deforms, preventing the metal circuit 2 from being damaged due to stress concentration.

[0023] The flexible circuit board has a body 1 reinforced with top and bottom reinforcing layers 3 to enhance its mechanical strength and prevent the metal circuits 2 from breaking due to bending or impact. An elastic layer 4 covers the surface of the reinforcing layer 3 to provide cushioning and further absorb external stress (such as vibration or deformation), thereby protecting the internal structure. When using the flexible circuit board, the heat-conducting plate 6 is responsible for conducting the heat generated by the flexible circuit board during operation to the outside. The heat-conducting sheet 7 increases the contact area with the air, helping the heat-conducting plate 6 to quickly dissipate heat and spread the heat rapidly into the surrounding air. This effectively avoids the aging or performance degradation of the flexible circuit board material caused by prolonged high temperatures, thus ensuring its normal working condition.

[0024] Example 2: Based on Example 1, please refer to... Figure 1 , Figure 4 and Figure 5 Two limiting plates 8 are fixedly connected to the top of the upper elastic layer 4. The limiting plates 8 are fixedly connected to the front and rear sides of the front and rear sides of the front and rear sides of the heat-conducting plate 6. Two guide rods 10 are fixedly connected to the front and rear sides of the heat-conducting plate 6. The two guide rods 10 are slidably provided with a limiting seat 11. The limiting seat 11 has a slot 12 on its upper part. The slot 9 can be inserted into the slot 12. An elastic element 13 is sleeved on the end of the guide rod 10 away from the heat-conducting plate 6. The two ends of the elastic element 13 are connected to the limiting seat 11 and the guide rod 10 respectively.

[0025] When installing a flexible circuit board, first pull the limiting seat 11 outward, stretching the elastic element 13. Then fix the limiting plate 8 on top of the upper reinforcing layer 3. After fixing, release the limiting seat 11, and the elastic element 13 returns to its original state. Push the limiting seat 11 inward, and the locking block 9 will be inserted into the locking slot 12, thereby reinforcing the entire flexible circuit board and preventing the circuit board body 1, reinforcing layer 3, and elastic layer 4 from loosening during long-term use.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flexible circuit board with anti-fracture function, comprising a circuit board body (1), metal circuits (2), a reinforcing layer (3) and an elastic layer (4), the surface of the circuit board body (1) is provided with a plurality of metal circuits (2), the top and bottom of the circuit board body (1) are provided with a reinforcing layer (3), and the surface of the reinforcing layer (3) is provided with an elastic layer (4), characterized in that, The heat-conducting plate (6) and the heat-conducting sheets (7) are further included, the bottom of the lower elastic layer (4) is provided with the heat-conducting plate (6), and the heat-conducting plate (6) is fixedly connected with a plurality of heat-conducting sheets (7) on the front and back sides.

2. The flexible wiring board having a breakage prevention function according to claim 1, wherein The limiting plates (8), the clamping blocks (9), the guide rods (10), the limiting seats (11) and the elastic members (13) are further included, the top of the upper elastic layer (4) is fixedly connected with two limiting plates (8), the limiting plates (8) are fixedly connected with the clamping blocks (9) on the front and back sides, the heat-conducting plate (6) is fixedly connected with two guide rods (10) on the front and back sides, the two guide rods (10) are slidably provided with the limiting seats (11) in common, the limiting seats (11) are provided with the clamping grooves (12) on the top, the clamping blocks (9) can be clamped into the clamping grooves (12), the guide rods (10) are provided with the elastic members (13) on the ends away from the heat-conducting plate (6), and the two ends of the elastic members (13) are connected with the limiting seats (11) and the guide rods (10) respectively.

3. The flexible wiring board having a breakage prevention function according to claim 2, wherein The reinforcing ribs (5) are further included, and the surface of the elastic layer (4) is provided with a plurality of reinforcing ribs (5).

4. The flexible wiring board having a breakage prevention function according to claim 3, wherein A plurality of heat-conducting holes (14) are formed in the elastic layer (4).

5. The flexible wiring board having a breakage prevention function according to claim 4, wherein The reinforcing plates (15) are further included, and the left and right sides of the elastic layer (4) are fixedly connected with the reinforcing plates (15).

6. The flexible wiring board having a breakage prevention function according to claim 5, wherein The elastic layer (4) is made of graphene material.

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