Circuit board flat cable bending-resistant structure

Abstract

The utility model discloses a circuit board flat cable bending-resistant structure, which relates to the technical field of circuit board flat cables, and comprises a cable body, connecting plugs are respectively arranged at two ends of the cable body, a plurality of groups of connecting channels are arranged in the cable body, a plurality of groups of leads are arranged in the connecting channels, the leads are communicated with the two groups of connecting plugs, and the two groups of connecting plugs are communicated with the cable body. The cable body comprises a protection layer and a wear-resistant layer, the protection layer and the wear-resistant layer are sequentially arranged from outside to inside, a heat insulation layer for heat insulation is arranged at a cavity in the wear-resistant layer, and a supporting device is sleeved outside the connecting channel and is used for assisting the connecting channel to restore to the original position. The weight of the cable filler is reduced, the cable filler can be conveniently applied to a circuit board for data transmission and temperature conduction reduction, cable performance reduction caused by temperature rise is avoided, flame retardance is improved, the service life is prolonged, wire breakage caused by an overlarge bending angle is avoided, the wire can be assisted to restore to the original position, and bending deformation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board wiring, in particular to a circuit board wiring anti-bending structure. Background Art

[0002] The circuit board is a very important component that carries various electronic components and ensures their normal operation. The wiring on the circuit board is an important channel for transmitting current and signals. Therefore, the durability and stability of the wiring have a vital impact on the performance of the entire circuit board. FFC cable is a flexible flat cable that is widely used in peripheral communication connections of electronic devices such as computers, scanners, printers, copiers, digital cameras, and LCD monitors. It is particularly suitable for use as a data transmission cable between mobile parts and motherboards, between PCB boards, and in miniaturized electrical equipment.

[0003] In the prior art, a utility model patent with announcement number CN219418545U provides a circuit board cable bending-resistant structure, including a flat bending-resistant cable sleeve and a cable. The cable is arranged at the front and rear ends of the flat bending-resistant cable sleeve. A cable tube is arranged inside the flat bending-resistant cable sleeve. The interior of the flat bending-resistant cable sleeve is sequentially provided with a corrosion-resistant rubber layer, a high-temperature resistant adhesive layer, a rubber rebound layer, and an insulating layer from the outside to the inside, and the cable tube is arranged inside the high-temperature resistant adhesive layer.

[0004] The circuit board cable bending-resistant structure has good temperature conduction of the material, which can easily lead to a decrease in cable performance due to temperature increase, affecting the service life, shortening the service life of the cable sleeve, and poor rebound effect at the auxiliary cable bending point. Therefore, we propose a circuit board cable bending-resistant structure to solve the above problems. Utility Model Content

[0005] The purpose of the present invention is to provide a circuit board cable bending-resistant structure to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a circuit board cable bending-resistant structure, comprising a cable body, with connecting plugs provided at both ends of the cable body, a plurality of connecting channels provided inside the cable body, a plurality of wires provided inside the connecting channels, the wires being connected to the two sets of connecting plugs, the cable body comprising a protective layer and a wear-resistant layer, the protective layer and the wear-resistant layer being arranged in sequence from the outside to the inside, an insulating layer being provided in the cavity inside the wear-resistant layer for heat insulation, a supporting device being provided on the outside of the connecting channel, and the supporting device being used to assist the connecting channel in returning to its original position.

[0007] Preferably, the supporting device comprises a rubber ring sleeved on the connecting channel, and an outer side wall of the rubber ring is connected to an elastic sheet for assisting the rubber ring to return to its original position.

[0008] Preferably, a spring is provided inside the rubber ring, the rubber ring is made of a high-temperature resistant and non-slip material, and the rubber ring is provided in multiple groups.

[0009] Preferably, the elastic sheet is flat, two ends of the elastic sheet are respectively connected to rubber rings, and the thickness of the elastic sheet is less than one quarter of the radius of the rubber ring.

[0010] Preferably, the exterior of the protective layer is coated with a scratch-resistant coating, and both the protective layer and the wear-resistant layer are elliptical structures.

[0011] Preferably, the thermal insulation layer is made of aerogel material.

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

[0013] 1. Aerogel is a form of solid matter and the lowest density solid in the world. It is very strong and durable and can withstand pressure equivalent to thousands of times its own mass. It can withstand temperatures up to degrees Celsius. Its thermal conductivity and refractive index are also very low. Its insulation capacity is times stronger than the best glass fiber. It reduces the weight of cable fillers, facilitates its application in data transmission in circuit boards, reduces temperature conduction, avoids cable performance degradation due to temperature increase, improves flame retardancy, and extends service life.

[0014] 2. When the cable body is bent, the internal components of the cable body will bend along with it, and the connecting channel, thermal insulation layer, wire and elastic sheet will bend along with it. The elastic sheet has a large bending resistance, so that when the bending angle of the cable body increases, a greater force is required, which limits the bending angle of the cable body from being too large, thereby preventing the wire from being bent too much. At the same time, when the force for bending the cable body is removed, the elastic sheet returns to its original shape, pulling the rubber ring back to its original position, and the connecting channel and wire are restored to their original position through the rubber ring, avoiding the wire from breaking due to excessive bending angle, so that the wire can be assisted to return to its original position and avoid bending deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the heat insulation layer in the utility model;

[0017] Figure 3 This is a structural diagram of the support device in the utility model.

[0018] In the figure: 1. Cable body; 11. Protective layer; 12. Wear-resistant layer; 2. Connecting plug; 3. Wire; 4. Heat insulation layer; 5. Connecting channel; 6. Support device; 61. Rubber ring; 62. Elastic sheet. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-3 A circuit board cable bending-resistant structure includes a cable body 1, with connecting plugs 2 provided at both ends of the cable body 1, multiple groups of connecting channels 5 provided inside the cable body 1, multiple groups of wires 3 provided in the connecting channels 5, and the wires 3 are connected to the two groups of connecting plugs 2. The cable body 1 includes a protective layer 11 and a wear-resistant layer 12. The protective layer 11 and the wear-resistant layer 12 are arranged in sequence from the outside to the inside. The outside of the protective layer 11 is coated with a scratch-resistant paint. The protective layer 11 and the wear-resistant layer 12 are both elliptical structures. A thermal insulation layer 4 for heat insulation is provided in the cavity inside the wear-resistant layer 12. The thermal insulation layer 4 is composed of aerogel selectively filled inside an insulating honeycomb rubber layer.

[0021] Aerogel is a form of solid matter and the lowest density solid in the world. It is very strong and durable and can withstand pressure equivalent to thousands of times its own mass. It can withstand temperatures up to 1400 degrees Celsius. Its thermal conductivity and refractive index are also very low. Its insulation capacity is 39 times stronger than the best glass fiber. It reduces the weight of cable fillers, facilitates its use in data transmission in circuit boards, reduces temperature conduction, avoids cable performance degradation due to rising temperature, improves flame retardancy, and extends service life.

[0022] A supporting device 6 is sleeved on the outside of the connecting channel 5. The supporting device 6 is used to assist the connecting channel 5 to return to its original position. The supporting device 6 includes a rubber ring 61 sleeved on the connecting channel 5. The outer wall of the rubber ring 61 is connected to an elastic sheet 62 for assisting the rubber ring 61 to return to its original position. A spring sheet is provided inside the rubber ring 61. The rubber ring 61 is made of high-temperature resistant and non-slip material. There are multiple groups of rubber rings 61. The elastic sheet 62 is flat. The two ends of the elastic sheet 62 are respectively connected to the rubber ring 61. The thickness of the elastic sheet 62 is less than one-quarter of the radius of the rubber ring 61.

[0023] When the cable body 1 is bent, the internal components of the cable body 1 follow the bending, and the connecting channel 5, the insulation layer 4, the wire 3 and the elastic sheet 62 follow the bending. The elastic sheet 62 has a large bending resistance, so that when the bending angle of the cable body 1 increases, a greater force is required, which limits the bending angle of the cable body 1 from being too large, thereby preventing the wire 3 from bending too large. At the same time, when the force of bending the cable body 1 is removed, the elastic sheet 62 returns to its original shape, pulling the rubber ring 61 back to its original position, and the connecting channel 5 and the wire 3 follow and return to their original position through the rubber ring 61, avoiding the wire 3 from breaking due to excessive bending angle, so that the wire 3 can be assisted to return to its original position and avoid bending deformation.

[0024] Working principle: The aerogel of this utility model is a solid material form, the solid with the lowest density in the world. It is very strong and durable and can withstand pressure equivalent to thousands of times its own mass. It can withstand high temperature of up to 1400 degrees Celsius. Its thermal conductivity and refractive index are also very low. Its insulation capacity is 39 times stronger than the best glass fiber. It reduces the weight of cable fillers, is convenient for use in data transmission in circuit boards, reduces temperature conduction, avoids the degradation of cable performance due to temperature increase, improves flame retardancy, and prolongs service life. When the cable body 1 bends, the internal components of the cable body 1 follow. When the cable body 1 is bent, the connecting channel 5, the insulation layer 4, the conductor 3 and the elastic sheet 62 follow the bending. The elastic sheet 62 has a large bending resistance, so that when the bending angle of the cable body 1 is increased, a greater force is required, which limits the bending angle of the cable body 1 from being too large, thereby preventing the conductor 3 from bending too large. At the same time, when the force for bending the cable body 1 is removed, the elastic sheet 62 returns to its original shape, pulling the rubber ring 61 back to its original position, and the connecting channel 5 and the conductor 3 follow and return to their original position through the rubber ring 61, avoiding the conductor 3 from breaking due to excessive bending angle, so that the conductor 3 can be assisted in returning to its original position and avoiding bending deformation.

[0025] The connection channel 5 is a prior art and will not be described in detail here.

[0026] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circuit board cable bending-resistant structure, comprising a cable body (1), with connecting plugs (2) provided at both ends of the cable body (1), characterized in that: The cable body (1) is provided with a plurality of connection channels (5) inside, and a plurality of wires (3) are provided inside the connection channels (5). The wires (3) are connected to two groups of connection plugs (2). The cable body (1) comprises a protective layer (11) and a wear-resistant layer (12). The protective layer (11) and the wear-resistant layer (12) are arranged in sequence from the outside to the inside. A heat insulation layer (4) for heat insulation is provided in the cavity inside the wear-resistant layer (12). The connection channels (5) are covered with a support device (6) outside, and the support device (6) is used to assist the connection channels (5) to return to their original position.

2. The circuit board cable bending-resistant structure according to claim 1, characterized in that: The supporting device (6) comprises a rubber ring (61) sleeved on the connecting channel (5), and an outer side wall of the rubber ring (61) is connected to an elastic sheet (62) for assisting the rubber ring (61) to return to its original position.

3. The circuit board cable bending-resistant structure according to claim 2, characterized in that: A spring piece is provided inside the rubber ring (61). The rubber ring (61) is made of a high-temperature resistant and non-slip material. There are multiple groups of rubber rings (61).

4. The circuit board cable bending-resistant structure according to claim 2, characterized in that: The elastic sheet (62) is flat, and both ends of the elastic sheet (62) are respectively connected to the rubber ring (61). The thickness of the elastic sheet (62) is less than one quarter of the radius of the rubber ring (61).

5. The circuit board cable bending-resistant structure according to claim 1, characterized in that: The protective layer (11) is coated with a scratch-resistant coating on the outside, and both the protective layer (11) and the wear-resistant layer (12) are elliptical structures.

6. The circuit board cable bending-resistant structure according to claim 1, characterized in that: The heat insulation layer (4) is made of aerogel material.

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