Flexible circuit board

Abstract

According to the technical scheme, the flexible circuit board comprises a flexible circuit board body and flexible protection strips, the two sides of the flexible circuit board body are both provided with buckle strips, the front surfaces and the rear surfaces of the buckle strips on the two sides are both provided with the flexible protection strips through clamping buckles, and the inner tops and the inner bottoms of the flexible protection strips are both provided with flexible steel wires. A substrate is installed in the middle of the interior of the flexible circuit board, film layers are arranged on the upper surface and the lower surface of the substrate in the flexible circuit board, a heat dissipation copper sheet is arranged at the bottom of the flexible circuit board, heat dissipation fins are installed on the lower surface of the heat dissipation copper sheet, and heat conduction silicone grease is arranged at the gap position of the heat dissipation copper sheet and the flexible circuit board. According to the flexible circuit board, the problems that the flexible circuit board is damaged and the service life of the flexible circuit board is affected due to the fact that an existing flexible circuit board is easily damaged due to excessive bending in the using process are solved, the damage probability of the flexible circuit board is reduced, and therefore the service life of the flexible circuit board is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible circuit boards, in particular to a flexible circuit board. Background Art

[0002] Flexible circuit boards are an emerging circuit board technology that can be bent, folded, and curled, making them suitable for electronic devices with limited space. This flexibility gives flexible circuit boards a great deal of design freedom. Their flexibility enables them to withstand a certain degree of bending and deformation without breaking or being damaged. They can be easily interconnected with other electronic components, which is conducive to the integration and miniaturization of electronic products.

[0003] Existing flexible circuit boards are easily damaged by excessive bending during use, which causes damage to the flexible circuit board and affects the service life of the flexible circuit board. Therefore, we propose a flexible circuit board. Utility Model Content

[0004] The purpose of the utility model is to provide a flexible circuit board to achieve the effect of protecting the flexible circuit board, so as to solve the problem that the existing flexible circuit board is easily damaged by excessive bending during use, resulting in damage to the flexible circuit board and affecting the service life of the flexible circuit board.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a flexible circuit board, comprising a flexible circuit board and a flexible protective strip, wherein snap strips are installed on both sides of the flexible circuit board, and flexible protective strips are installed on the front and rear surfaces of the snap strips on both sides through clamping buckles, and flexible steel wires are installed on the top and bottom of the flexible protective strip, a substrate is installed in the middle of the flexible circuit board, and film layers are provided on the upper and lower surfaces of the substrate inside the flexible circuit board.

[0006] Preferably, a card slot is provided inside the flexible protective strip on the outer surface of the flexible circuit board, and adhesive glue A is installed on the top and bottom of the card slot.

[0007] Preferably, a slide groove is provided inside the buckle strip on the outer surface of the flexible circuit board, and adhesive glue B is installed on the top and bottom of the slide groove.

[0008] Preferably, a heat dissipation copper sheet is provided at the bottom of the flexible circuit board, a heat sink is installed on the lower surface of the heat dissipation copper sheet, and thermal conductive silicone grease is provided at the gap between the heat dissipation copper sheet and the flexible circuit board.

[0009] Preferably, the front and rear surfaces of the buckle strip are provided with clamping grooves on the outer surface of the clamping buckle, and the clamping buckle is clamped inside the clamping groove.

[0010] Preferably, positioning screws are installed on the front and rear surfaces of the flexible protective strip, and the ends of the positioning screws are connected to the inside of the buckle strip.

[0011] Preferably, a connection terminal is provided on the top of the flexible circuit board.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. The utility model achieves the effect of protecting the flexible circuit board by setting a flexible protective strip and a flexible steel wire, so as to solve the problem that the existing flexible circuit board is easily damaged by excessive bending during use, resulting in damage to the flexible circuit board and affecting the service life of the flexible circuit board. The damage probability of the flexible circuit board is reduced, thereby improving the service life of the flexible circuit board.

[0014] 2. The utility model achieves the effect of positioning and fixing the flexible protective strip by setting a snap strip, a clamping buckle and a positioning screw, so as to solve the problem that the clamping stability of the existing flexible protective strip is poor, resulting in the separation of the flexible protective strip and affecting the protection probability of the flexible circuit board. The separation probability of the flexible protective strip is reduced, thereby improving the protection effect of the flexible circuit board.

[0015] 3. The utility model achieves the effect of heat conduction and cooling of the flexible circuit board by arranging heat dissipation copper foil, heat sink and thermal conductive silicone grease, so as to solve the problem that the existing flexible circuit board mainly relies on itself for cooling, has low heat conduction and cooling efficiency and poor service life, and increases the operating temperature of the flexible circuit board, thereby increasing the service life of the flexible circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of A;

[0018] Figure 3 This is a schematic diagram of the bottom-up structure of the present invention;

[0019] Figure 4 This is a partial cross-sectional structural diagram of the flexible protective strip and flexible circuit board of the utility model;

[0020] Figure 5 This is a partial cross-sectional structural diagram of the buckle strip and the flexible circuit board of the utility model.

[0021] Figure numerals: 1. flexible circuit board; 2. flexible protective strip; 3. connecting terminal; 4. snap strip; 5. clamping buckle; 6. positioning screw; 7. clamping groove; 8. heat dissipation copper sheet; 9. heat sink; 10. film layer; 11. adhesive A; 12. flexible steel wire; 13. slot; 14. substrate; 15. slide groove; 16. adhesive B; 17. thermal grease. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0023] Example 1

[0024] like Figure 1-4 As shown, in order to achieve the above purpose, the utility model provides the following technical solutions: a flexible circuit board, including a flexible circuit board 1 and a flexible protective strip 2, a snap strip 4 is installed on both sides of the flexible circuit board 1, and the front and rear surfaces of the snap strips 4 on both sides are installed with flexible protective strips 2 through clamping buckles 5, and flexible steel wires 12 are installed on the top and bottom of the flexible protective strip 2, a substrate 14 is installed in the middle of the flexible circuit board 1, and a film layer 10 is provided on the upper and lower surfaces of the substrate 14 inside the flexible circuit board 1, and a card slot 13 is provided on the outer surface of the flexible circuit board 1 inside the flexible protective strip 2, and the top and bottom of the card slot 13 are installed. They are all installed with adhesive glue A11, and the inside of the snap strip 4 is located on the outer surface of the flexible circuit board 1 with a slide groove 15, and the top and bottom of the slide groove 15 are installed with adhesive glue B16. The flexible circuit board 1 is positioned by the set adhesive glue A11 and adhesive glue B16. The front and rear surfaces of the snap strip 4 are located on the outer surface of the clamping buckle 5 with a clamping groove 7, and the clamping buckle 5 is clamped in the clamping groove 7. The front and rear surfaces of the flexible protective strip 2 are both installed with positioning screws 6, and the flexible protective strip 2 is positioned and fixed by the positioning screws 6. The end of the positioning screw 6 is connected to the inside of the snap strip 4, and a connecting terminal 3 is provided on the top of the flexible circuit board 1.

[0025] The working principle of a flexible circuit board based on Example 1 is: after the utility model is installed, when in use, the flexible circuit board 1 is connected to the place of use through the connecting terminal 3, and the flexible circuit board 1 is protected by the flexible steel wire 12 inside the flexible protective strip 2 to prevent the flexible circuit board 1 from bending too much during use, causing damage to the flexible circuit board 1. At this point, the working process of this device is completed.

[0026] Example 2

[0027] like Figure 3 and Figure 5 As shown, the flexible circuit board proposed by the present invention, compared with the first embodiment, this embodiment further includes: a heat dissipation copper sheet 8 is provided at the bottom of the flexible circuit board 1, a heat dissipation fin 9 is installed on the lower surface of the heat dissipation copper sheet 8, and a thermal conductive silicone grease 17 is provided at the gap between the heat dissipation copper sheet 8 and the flexible circuit board 1. The heat is conducted to the heat dissipation copper sheet 8 by the provided thermal conductive silicone grease 17, and the heat is dissipated through the heat dissipation copper sheet 8 and the heat dissipation fin 9.

[0028] In this embodiment, when in use, the heat is conducted to the heat dissipation copper sheet 8 through the thermal grease 17, and then the heat is transferred to the heat sink 9 through the heat dissipation copper sheet 8. The flexible circuit board 1 is cooled by the heat sink 9 and the heat dissipation copper sheet 8.

[0029] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A flexible circuit board, comprising a flexible circuit board (1) and a flexible protective strip (2), characterized in that: Buckle strips (4) are installed on both sides of the flexible circuit board (1), and flexible protective strips (2) are installed on the front and rear surfaces of the buckle strips (4) on both sides through clamping buckles (5), and flexible steel wires (12) are installed on the top and bottom of the flexible protective strips (2). A base plate (14) is installed in the middle of the flexible circuit board (1), and film layers (10) are provided on the upper and lower surfaces of the base plate (14) inside the flexible circuit board (1).

2. The flexible circuit board according to claim 1, wherein: A card slot (13) is provided inside the flexible protective strip (2) on the outer surface of the flexible circuit board (1), and adhesive glue A (11) is installed on the top and bottom of the card slot (13).

3. The flexible circuit board according to claim 1, wherein: A slide groove (15) is provided inside the buckle strip (4) and located on the outer surface of the flexible circuit board (1), and adhesive glue B (16) is installed on the top and bottom of the slide groove (15).

4. The flexible circuit board according to claim 1, wherein: A heat dissipation copper sheet (8) is provided at the bottom of the flexible circuit board (1), a heat sink (9) is mounted on the lower surface of the heat dissipation copper sheet (8), and thermal conductive silicone grease (17) is provided at the gap between the heat dissipation copper sheet (8) and the flexible circuit board (1).

5. The flexible circuit board according to claim 1, wherein: The front and rear surfaces of the buckle strip (4) are provided with a clamping groove (7) on the outer surface of the clamping buckle (5), and the clamping buckle (5) is clamped inside the clamping groove (7).

6. The flexible circuit board according to claim 1, wherein: Positioning screws (6) are installed on the front and rear surfaces of the flexible protection strip (2), and the ends of the positioning screws (6) are connected to the inside of the buckle strip (4).

7. The flexible circuit board according to claim 1, wherein: A connecting terminal (3) is provided on the top of the flexible circuit board (1).

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