Stretch-resistant flexible flat cable

Abstract

The utility model relates to the technical field of flexible flat cables, and discloses a tensile flexible flat cable, which comprises a plurality of leads distributed side by side, the plurality of leads are distributed inside a strip-shaped wrapping layer arranged on the outer side, a longitudinal tensile layer is wrapped on the outer side of the wrapping layer, and a transverse tensile layer is wrapped on the outer side of the longitudinal tensile layer. The tensile flexible flat cable is combined with the innovative design of the longitudinal tensile layer and the transverse tensile layer, so that the tensile flexible flat cable can keep excellent tensile performance in a complex working environment, and particularly, the tensile flexible flat cable shows extremely high structural stability and durability when bearing longitudinal tensile force and transverse tensile force. The steel wire longitudinal tensile ribs are matched with the copper strip transverse tensile sleeves, so that the mechanical strength of the material is fully exerted, the flat cable can always keep good flexibility and reliability under the condition of multi-directional stress, and the flat cable is suitable for various complicated application scenes and meets the requirements of high-strength load and long-term use.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of soft flat cable, specifically to a tensile soft flat cable. BACKGROUND

[0002] Flexible Flat Cable (FFC) is a kind of connecting component widely used in electronic devices, which is mainly used for transmitting current or signal between different electronic components or circuit boards. Due to the compact internal space and complex layout of electronic devices, the flat cable needs to be bent and twisted in a narrow space to realize the connection function, so the flexible flat cable must have good flexibility.

[0003] (1) Poor tensile resistance

[0004] Longitudinal tensile resistance

[0005] In many existing flexible flat cable designs, there is a lack of effective reinforcement structure specifically for longitudinal stretching. When the device is subjected to longitudinal tension during operation, such as in some devices that require plugging and unplugging of the flat cable, or in the case of accidental pulling of the device, the internal wires of the flat cable are prone to excessive elongation or even breakage. This is because the ordinary flat cable structure mainly focuses on ensuring flexibility and basic electrical performance, without fully considering the impact of longitudinal tension on the flat cable structure.

[0006] Even if some flat cables use a simple wrapping layer to provide some protection, this protection is far from enough under a large longitudinal tension, and cannot effectively prevent the deformation of the flat cable and the damage to the internal wires, thereby affecting the service life of the flat cable and the normal operation of the device.

[0007] Transverse tensile resistance

[0008] The ability to resist transverse tension is also a weak link in existing flexible flat cables. In the actual use of electronic devices, the flat cable may be subjected to transverse forces such as lateral extrusion and pulling. The existing flexible flat cable often lacks a special transverse tensile structure, and is prone to damage and deformation when subjected to transverse tension.

[0009] For example, when the device is subjected to vibration or slight collision with other components in a narrow space, transverse forces will act on the flat cable, and the structure of the ordinary flat cable is difficult to disperse such transverse forces, resulting in a decrease in the mechanical properties of the flat cable, and further affecting the stability of the electrical connection.

[0010] (2) Lack of comprehensive tensile resistance design

[0011] Most of the existing flexible flat cables do not have the design of considering the longitudinal and transverse tensile resistance at the same time. In actual application scenarios, the flat cable may be subjected to tensile force from multiple directions, and the tensile structure in a single direction cannot meet the demand of complex stress environment.

[0012] Due to the lack of such comprehensive tensile resistance design, the flat cable is prone to local stress concentration under complex mechanical stress environment. Once stress concentration occurs, it will accelerate the damage of the flat cable, reduce the reliability of the flat cable, and increase the maintenance cost and failure rate of the equipment. Practical new type content

[0013] (I) technical problems solved

[0014] In view of the shortcomings of the prior art, the utility model provides a tensile resistant flexible flat cable to solve the above problems.

[0015] (II) technical scheme

[0016] In order to achieve the above purpose, the utility model provides the following technical scheme: a tensile resistant flexible flat cable, comprising a plurality of parallel flat cables, a plurality of flat cables are distributed in the inside of the wrapping layer in the form of belt arranged on the outside, the outside of the wrapping layer is wrapped with a longitudinal tensile layer, the outside of the longitudinal tensile layer is wrapped with a transverse tensile layer;

[0017] The inside of the longitudinal tensile layer is provided with a plurality of parallel longitudinal tensile ribs equidistantly arranged along the direction of the flat cable.

[0018] The inside of the transverse tensile layer is embedded with a plurality of transverse tensile sleeves equidistantly, and each transverse tensile sleeve is sleeved on the outside of the longitudinal tensile layer.

[0019] As a preferred technical scheme of the utility model, the wrapping layer is made of silica gel material.

[0020] As a preferred technical scheme of the utility model, the longitudinal tensile layer is made of pet material.

[0021] As a preferred technical scheme of the utility model, the transverse tensile layer is made of pet material.

[0022] As a preferred technical scheme of the utility model, the longitudinal tensile rib is made of steel wire material.

[0023] As a preferred technical scheme of the utility model, the transverse tensile sleeve is made of copper belt material.

[0024] Compared with the prior art, the utility model provides a tensile resistant flexible flat cable, which has the following beneficial effects:

[0025] Longitudinal tensile performance: The longitudinal tensile layer of the flat cable is greatly enhanced in tensile strength under longitudinal stress through the cooperation of the high-strength molecular structure of PET material and the steel wire longitudinal tensile rib. The steel wire longitudinal tensile rib can effectively share the tensile force and prevent the flat cable from excessive elongation or rupture when subjected to longitudinal tension, ensuring the stability and durability of the flat cable during long-term use.

[0026] Transverse tensile performance: The transverse tensile layer outside the flat cable, together with the embedded transverse tensile sleeve, enhances the tensile strength of the flat cable in the transverse tension direction. The transverse tensile sleeve is made of copper material, and the high strength and corrosion resistance of copper enable the flat cable to resist external environmental influences during long-term use, ensuring that it does not easily break when subjected to transverse tension and maintaining good mechanical strength.

[0027] Comprehensive performance: The double protection of longitudinal and transverse tensile layers not only enhances the tensile resistance of the flat cable, but also maintains its flexibility. The flat cable can effectively withstand tensile force from different directions, preventing damage or deformation due to local stress concentration. In addition, the wrapping layer is made of high-flexibility silicone material, which can effectively resist wear and aging even in an environment of frequent bending and stretching, prolonging the service life of the flat cable.

[0028] The anti-tensile flexible flat cable combines the innovative design of longitudinal and transverse tensile layers, ensuring excellent tensile resistance in complex working environments, especially when subjected to longitudinal and transverse tension, exhibiting excellent structural stability and durability. The combination of steel wire longitudinal tensile ribs and copper transverse tensile sleeves fully utilizes the mechanical strength of the materials, enabling the flat cable to maintain good flexibility and reliability under multi-directional stress, adapting to various complex application scenarios and meeting the needs of high-strength load and long-term use. In addition, the high elasticity and anti-aging properties of the wrapping layer further enhance the overall durability of the flat cable, ensuring its stable operation in harsh environments for a long time, greatly extending the product's service life. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a structural schematic diagram of the utility model;

[0030] Figure 2 is a structural schematic diagram of the utility model front-end layered section;

[0031] Figure 3 is a structural schematic diagram of the utility model longitudinal tensile layer half-section;

[0032] Figure 4 is a structural schematic diagram of the utility model transverse tensile layer half-section.

[0033] Wherein: 1, wire; 2, wrapping layer; 3, longitudinal tensile layer; 4, transverse tensile layer;

[0034] 31. longitudinal tensile strength rib;

[0035] 41. transverse tensile strength sleeve. DETAILED DESCRIPTION

[0036] The utility model will be made further detailed explanation in combination with the drawings and examples, obviously, the described example is only a part of the utility model example, rather than all the examples. In the case of no conflict, the example and the feature in the example in this application can be combined mutually. Based on the example in the utility model, all other examples obtained by the ordinary skill in the art without making creative labor, all belong to the scope of the utility model protection.

[0037] It should be noted that if the utility model example has involved directionality indication (such as up, down, left, right, front, back......), the directionality indication is only used to explain the relative position relationship, movement condition etc. between the components in a certain specific posture (as shown in the drawings), if the specific posture changes, then the directionality indication also changes accordingly.

[0038] In addition, "a plurality of" refers to two or more. In addition, the technical solutions of each example can be combined with each other, but it must be based on that the ordinary skill in the art can be realized, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not in the protection scope of the utility model required.

[0039] Please refer to Figures 1-4 A tensile soft flat cable, comprising a plurality of parallelly distributed conductors 1, a plurality of conductors 1 are distributed in the inside of the outerly arranged band-shaped wrapping layer 2, the outside of the wrapping layer 2 is wrapped with longitudinal tensile layer 3, the outside of the longitudinal tensile layer 3 is wrapped with transverse tensile layer 4.

[0040] A plurality of parallelly distributed longitudinal tensile strength ribs 31 are equidistantly arranged in the inside of the longitudinal tensile layer 3 along the direction of the flat cable.

[0041] A plurality of transverse tensile strength sleeves 41 are equidistantly embedded in the inside of the transverse tensile layer 4, and each transverse tensile strength sleeve 41 is sleeved to the outside of the longitudinal tensile layer 3.

[0042] The conductive wire 1 is the core part of the flat cable, usually made of conductive materials such as copper or aluminum. Each conductive wire 1 is arranged side by side inside the flat cable, and is responsible for transmitting current or signals. In order to ensure good conductivity, the surface of the conductive wire 1 is usually plated with a layer of metal, such as tin-plated copper or silver-plated copper, to reduce oxidation and improve conductivity. In addition, the surface of the conductive wire 1 can be coated with an insulating coating to prevent short circuits with other conductive wires or the external environment. Through the uniform distribution of the conductive wire 1, the flat cable can effectively transmit current while maintaining good flexibility.

[0043] The wrapping layer 2 is the outer protective layer of the flat cable, mainly to protect the internal conductive wire 1 from external environmental factors such as moisture, dust and mechanical friction. The wrapping layer 2 is made of high-flexibility silicone material, which has excellent weather resistance and anti-aging performance, and good insulation performance to prevent current leakage or short circuit of the conductive wire. The high elasticity of the silicone makes the flat cable less likely to be damaged when bent or stretched, thereby prolonging the service life of the flat cable. The wrapping layer 2 can effectively reduce the stress concentration of the internal conductive wire when the flat cable is bent, providing a certain buffering effect to prevent the conductive wire from breaking or being damaged.

[0044] The longitudinal tensile layer 3 is the main tensile structure of the flat cable, which bears the support function of the flat cable when stretched in the longitudinal direction. This layer is made of PET material, which has excellent tensile strength, wear resistance and chemical stability, and can effectively enhance the tensile performance of the flat cable to ensure that the flat cable is not easily broken or deformed when subjected to longitudinal tension. The longitudinal tensile layer 3 provides high-strength support through its dense molecular structure, while the combination between it and the wrapping layer 2 ensures the flexibility of the flat cable.

[0045] The longitudinal tensile layer 3 is internally provided with a plurality of longitudinally arranged longitudinal tensile ribs 31, which are mainly made of steel wire material. Steel wire has very high tensile strength, which effectively shares the tension in the longitudinal direction, thereby preventing the flat cable from being excessively elongated or broken during stretching. The longitudinal tensile rib 31, through the close combination of steel wire and PET longitudinal tensile layer 3, forms a powerful longitudinal tensile grid structure together, enhancing the longitudinal tensile strength of the flat cable while maintaining the flexibility of the flat cable.

[0046] The transverse tensile layer 4 is located outside the longitudinal tensile layer 3, mainly used to enhance the tensile capacity of the flat cable in the transverse direction. This layer is made of PET material, which has good physical properties that make it have a certain tensile strength in the transverse direction, effectively preventing damage to the flat cable when subjected to transverse tension. The transverse tensile layer 4 increases the longitudinal tensile strength of the flat cable.

[0047] The inner part of the transverse tensile layer 4 is embedded with a plurality of transverse tensile sleeves 41. Each transverse tensile sleeve 41 is made of copper band material, so that they not only provide additional mechanical support force, but also effectively disperse the tensile force during the use of the wire, preventing the wire from being broken due to excessive pressure. The material of the copper band ensures that the strength of the tensile sleeve matches the overall tensile properties of the wire, ensuring that the wire maintains good structural stability under multi-directional stress.

[0048] The longitudinal tensile rib 31 is a key component for enhancing the tensile strength of the wire in the longitudinal direction. These tensile ribs are made of high-strength steel wire material, which has very high tensile strength, allowing the wire to maintain its shape and not break under high tension. The longitudinal tensile rib 31 is usually arranged in the longitudinal tensile layer 3 and is evenly distributed along the direction of the wire, ensuring that each section of the wire receives uniform tensile support during longitudinal stretching.

[0049] These steel wire longitudinal tensile ribs 31 also play a role in reducing stress concentration during wire stretching, evenly distributing the tension throughout the wire structure and preventing damage from excessive stress on a particular part.

[0050] The transverse tensile sleeve 41 plays a supporting and reinforcing role in the wire, especially in the transverse direction. The transverse tensile sleeve 41 is made of copper band material, which has good electrical conductivity and corrosion resistance, so it will not lose its tensile ability due to oxidation or corrosion during long-term use. The use of copper band ensures that the wire is effectively supported in the transverse direction and increases the mechanical strength of the wire, preventing deformation or breakage of the wire under mechanical impact.

[0051] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

[0052] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered exemplary and non-limiting, and the scope of the present application is defined by the appended claims, not the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims.

[0053] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.

Claims

1. A stretch-resistant flexible flat cable comprising a plurality of conductors (1) arranged side by side, characterized in that: Several of the conductive wires (1) are distributed inside a band-shaped wrapping layer (2) arranged on the outside, the outside of the wrapping layer (2) is wrapped with a longitudinal tensile layer (3), the outside of the longitudinal tensile layer (3) is wrapped with a transverse tensile layer (4); A plurality of longitudinal tensile ribs (31) are arranged equidistantly inside the longitudinal tensile layer (3) along the direction of the flat cable; A plurality of transverse tensile sleeves (41) are embedded equidistantly inside the transverse tensile layer (4), each of the transverse tensile sleeves (41) is sleeved on the outside of the longitudinal tensile layer (3).

2. The stretch-resistant, flexible flat cable of claim 1, wherein: The wrapping layer (2) is made of silica gel material.

3. The stretch-resistant, flexible flat cable of claim 1, wherein: The longitudinal tensile layer (3) is made of pet material.

4. The stretch-resistant, flexible flat cable of claim 1, wherein: The transverse tensile layer (4) is made of pet material.

5. The stretch-resistant, flexible flat cable of claim 1, wherein: The longitudinal tensile rib (31) is made of steel wire material.

6. The stretch-resistant, flexible flat cable of claim 1, wherein: The transverse tensile sleeve (41) is made of copper band material.

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