Anti-breaking flexible printed circuit board

Abstract

The utility model relates to the technical field of circuit boards, in particular to an anti-breaking flexible printed circuit board, which comprises a conductive circuit, the conductive circuit is arranged on a circuit board body, the circuit board body comprises a copper foil layer, the conductive circuit is etched on the copper foil layer, the copper foil layer is fixed on a base layer, and a protective film is further mounted on the other side of the copper foil layer. Second supporting frames are arranged on the two sides of the circuit board body, a containing groove is formed in one side of the top of each second supporting frame, the two sides of the circuit board body are located in the corresponding containing grooves, a first supporting frame is arranged on the top of each second supporting frame, and one side of each first supporting frame extends to the position above the circuit board body. The two sides of the circuit board body can be supported through the first supporting frame and the second supporting frame, the circuit board body is prevented from being damaged due to the fact that the bending angle is too large in the using process, and the protection effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to an anti-breakage flexible printed circuit board. Background Art

[0002] Flexible printed circuit boards, also known as "soft boards", are printed circuits made of flexible insulating substrates that can be bent, wound, and folded freely. They can withstand millions of dynamic bends without damaging the wires. They can be arranged arbitrarily according to spatial layout requirements and can be moved and stretched arbitrarily in three-dimensional space, thereby achieving the integration of component assembly and wire connection.

[0003] Currently, flexible circuit boards are soft and lack support mechanisms, making them susceptible to excessive bending during installation or transportation, which can lead to breakage and damage to circuitry. Furthermore, existing flexible circuit boards typically rely solely on the circuit board itself for heat dissipation, resulting in slow heat dissipation that can affect the operation of components mounted on the board and result in poor performance. To address this issue, we propose a break-resistant flexible printed circuit board. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned shortcomings in the prior art and to propose an anti-breaking flexible printed circuit board.

[0005] In order to achieve the above-mentioned object, the utility model adopts the following technical solution: a break-proof flexible printed circuit board is designed, comprising a conductive circuit, which is arranged on a circuit board body, the circuit board body comprising a copper foil layer, the conductive circuit is etched on the copper foil layer, the copper foil layer is fixed on a base layer, and a protective film is also installed on the other side of the copper foil layer;

[0006] A second support frame is provided on both sides of the circuit board body, and a receiving groove is provided on one side of the top of each second support frame. Both sides of the circuit board body are located in the corresponding receiving grooves. A first support frame is provided on the top of each second support frame, and one side of the first support frame extends above the circuit board body.

[0007] An elastic clip is installed on the edge of the bottom of each first support frame away from the circuit board body, and a clip slot is opened on the top edge of each second support frame, and the bottom of the elastic clip extends into the corresponding clip slot;

[0008] A number of heat sinks are evenly spaced at the bottom of the base layer. A thermal conductive adhesive layer is installed on the side of each heat sink close to the base layer, and one side of the thermal conductive adhesive layer contacts the side of the base layer.

[0009] Connecting pieces are installed on both sides of each heat dissipation plate, one side of the connecting piece extends to the side surface of the second supporting frame, and the connecting piece is fixedly connected to the second supporting frame.

[0010] Preferably, the top of the circuit board body is flush with the top of the second supporting frame.

[0011] Preferably, the first supporting frame, the second supporting frame and the elastic clip are all made of elastic rubber material.

[0012] Preferably, a plurality of heat dissipation slots are provided on the side surface of each heat dissipation plate.

[0013] Preferably, the protective film is made of polyimide material.

[0014] Preferably, the protective film covers the surface of the conductive circuit.

[0015] Preferably, a plurality of reinforcing ribs are installed on a side of each second supporting frame that is away from the corresponding first supporting frame.

[0016] The design scheme proposed by the utility model has the following beneficial effects during application:

[0017] 1. The first supporting frame and the second supporting frame can support both sides of the circuit board body, thereby preventing the circuit board body from being damaged by bending at an excessively large angle during use, thereby improving the protection effect.

[0018] 2. The heat generated by the circuit board body can be transferred to the heat sink through the thermal conductive adhesive layer, and then the heat is quickly dissipated through the heat sink, which has a high heat dissipation speed and improves the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the heat dissipation plate structure of the present utility model;

[0022] Figure 4 This is a side view of the heat dissipation plate structure of the present utility model;

[0023] Figure 5 It is a side sectional view of the connecting structure of the first supporting frame and the second supporting frame of the present invention.

[0024] In the figure: 1. Circuit board body; 2. First supporting frame; 3. Second supporting frame; 4. Connecting piece; 5. Heat dissipation slot; 6. Heat dissipation plate; 7. Thermal adhesive layer; 8. Elastic clip; 9. Clip slot; 10. Copper foil layer; 11. Base layer; 12. Protective film; 13. Receiving slot; 14. Conductive line; 15. Reinforcing rib. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Reference Figure 1-Figure 5 A break-proof flexible printed circuit board includes a conductive circuit 14, which is arranged on a circuit board body 1. The circuit board body 1 includes a copper foil layer 10, the conductive circuit 14 is etched on the copper foil layer 10, and the copper foil layer 10 is fixed on a base layer 11.

[0027] like Figure 1 and Figure 5 As shown, a protective film 12 is also installed on the other side of the copper foil layer 10. The protective film 12 is made of polyimide material. The protective film 12 covers the surface of the conductive circuit 14. During actual use, the conductive circuit 14 can be covered by the protective film 12, so that the conductive circuit 14 is separated from the external environment, thereby preventing the conductive circuit 14 from being damaged by the external environment.

[0028] like Figure 1 and Figure 2 As shown, a second support frame 3 is provided on both sides of the circuit board body 1, and a receiving groove 13 is opened on one side of the top of each second support frame 3. Both sides of the circuit board body 1 are located in the corresponding receiving groove 13, and a first support frame 2 is provided on the top of each second support frame 3. One side of the first support frame 2 extends above the circuit board body 1. The first support frame 2 and the second support frame 3 are both made of elastic rubber material. Under the self-elastic force of the first support frame 2 and the second support frame 3, the circuit board body 1 can be clamped in the receiving groove 13, so that the first support frame 2 and the second support frame 3 support both sides of the circuit board body 1, without affecting the bending of the circuit board body 1, and can also prevent the circuit board body 1 from being damaged by excessive bending during use.

[0029] It should be noted that if Figure 5 As shown, the top of the circuit board body 1 is flush with the top of the second support frame 3, so that the bottom of the first support frame 2 can be against the top of the circuit board body 1, and can be fixed to the side of the circuit board body 1 under the elastic force of the first support frame 2 and the second support frame 3 themselves.

[0030] like Figure 5As shown, an elastic clip 8 is installed at the edge of the bottom of each first support frame 2 away from the circuit board body 1, and a slot 9 is opened at the top edge of each second support frame 3. The bottom of the elastic clip 8 extends into the corresponding slot 9. The elastic clip 8 is made of elastic rubber material. In actual use, the first support frame 2 and the second support frame 3 can be fixed together by inserting the elastic clip 8 into the slot 9, which is convenient to fix.

[0031] like Figure 2 、 Figure 3 and Figure 4 As shown, a number of heat sinks 6 are equidistantly provided at the bottom of the base layer 11. A thermally conductive adhesive layer 7 is installed on the side of each heat sink 6 close to the base layer 11. One side of the thermally conductive adhesive layer 7 is in contact with the side of the base layer 11. The heat generated by the circuit board body 1 during operation can be transferred to the heat sink 6 through the thermally conductive adhesive layer 7, and then dissipated through the heat sink 6, which can accelerate the heat dissipation speed of the circuit board body 1 and improve the heat dissipation effect.

[0032] It should be noted that if Figure 4 As shown, a plurality of heat dissipation slots 5 are provided on the side surface of each heat dissipation plate 6, which can increase the contact area between the heat dissipation plate 6 and the air and improve the heat dissipation effect.

[0033] like Figure 2 As shown, connecting plates 4 are installed on both sides of each heat sink 6, one side of the connecting plate 4 extends to the side of the second support frame 3, and the connecting plate 4 is fixedly connected to the second support frame 3, which can fix the heat sink 6 and the second support frame 3 together, thereby increasing the installation stability of the second support frame 3 and the heat sink 6.

[0034] Specifically, when the present invention is in use, the staff can place both sides of the circuit board body 1 in the accommodating groove 13 opened on the second support frame 3, and then cover the surface of the second support frame 3 with the first support frame 2. When the first support frame 2 contacts the second support frame 3, the elastic clip 8 is inserted into the clip groove 9 to fix the first support frame 2 and the second support frame 3 together, thereby fixing the first support frame 2 and the second support frame 3 on both sides of the circuit board body 1, which can support and protect the circuit board body 1. Then, the heat sink 6 is fixed on the base layer 11 in the circuit board body 1 through the thermal conductive adhesive layer 7. The heat generated by the circuit board body 1 during operation can be transferred to the heat sink 6 through the thermal conductive adhesive layer 7, and quickly dissipated through the heat sink 6, and the heat dissipation speed is fast.

[0035] Furthermore, if Figure 1 and Figure 2As shown, each second support frame 3 is installed with a plurality of reinforcing ribs 15 on the side away from the corresponding first support frame 2. The reinforcing ribs 15 can increase the structural strength of the first support frame 2 and the second support frame 3, thereby preventing the first support frame 2 and the second support frame 3 from bending and deforming at the contact parts with the circuit board body 1 and falling off the circuit board body 1.

[0036] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A break-resistant flexible printed circuit board, comprising a conductive circuit (14), characterized in that: The conductive circuit (14) is arranged on the circuit board body (1), the circuit board body (1) includes a copper foil layer (10), the conductive circuit (14) is etched on the copper foil layer (10), the copper foil layer (10) is fixed on the base layer (11), and a protective film (12) is also installed on the other side of the copper foil layer (10); Second support frames (3) are provided on both sides of the circuit board body (1), a receiving groove (13) is provided on one side of the top of each second support frame (3), both sides of the circuit board body (1) are located in the corresponding receiving groove (13), and a first support frame (2) is provided on the top of each second support frame (3), and one side of the first support frame (2) extends above the circuit board body (1); An elastic clip (8) is installed at the edge of the bottom of each first supporting frame (2) away from the circuit board body (1), and a clip slot (9) is provided at the top edge of each second supporting frame (3), and the bottom of the elastic clip (8) extends into the corresponding clip slot (9); A plurality of heat dissipation plates (6) are equidistantly provided at the bottom of the base layer (11), and a heat conductive adhesive layer (7) is installed on a side of each heat dissipation plate (6) close to the base layer (11), and one side of the heat conductive adhesive layer (7) is in contact with a side surface of the base layer (11); Connecting pieces (4) are installed on both sides of each heat dissipation plate (6), one side of the connecting piece (4) extends to the side of the second supporting frame (3), and the connecting piece (4) is fixedly connected to the second supporting frame (3).

2. The anti-breakage flexible printed circuit board according to claim 1, characterized in that: The top of the circuit board body (1) is flush with the top of the second supporting frame (3).

3. The anti-breakage flexible printed circuit board according to claim 1, characterized in that: The first supporting frame (2), the second supporting frame (3) and the elastic clip (8) are all made of elastic rubber material.

4. The anti-breakage flexible printed circuit board according to claim 1, characterized in that: A plurality of heat dissipation slots (5) are provided on the side surface of each heat dissipation plate (6).

5. The anti-breakage flexible printed circuit board according to claim 1, characterized in that: The protective film (12) is made of polyimide material.

6. The anti-breakage flexible printed circuit board according to claim 5, characterized in that: The protective film (12) covers the surface of the conductive circuit (14).

7. The anti-breakage flexible printed circuit board according to claim 1, characterized in that: A plurality of reinforcing ribs (15) are installed on the side of each second supporting frame (3) that is away from the corresponding first supporting frame (2).

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