High and low temperature resistant computer flexible cable

Abstract

This utility model discloses a high and low temperature resistant computer flexible cable, including a cable. The cable includes a conductor, a support frame, an insulation layer, a shielding layer, and a protective layer. The conductor, insulation layer, shielding layer, and protective layer adopt a coaxial composite structure from the inside out. The support frame is used to fix the conductor, so that the conductor is located in the central area of ​​the cable. The support frame of this utility model adopts a polyester fiber central reinforcing core combined with polyester fiber fine threads spirally wound at ±15° to form a stable structure of "axial support + circumferential binding". This not only accurately fixes the conductor bundle, but also maintains morphological stability under complex temperature cycles. The insulation layer achieves fusion bonding with the support frame through an extrusion process. Utilizing the dual fixing mechanism of mechanical interlocking and molecular diffusion, the overall structural strength is further enhanced. The multi-layer composite structure and annular interlocking ridges of the protective layer not only provide excellent protection under complex working conditions such as high and low temperatures, humidity, and vibration, but also improve the coefficient of friction.

Description

Technical Field

[0001] This utility model mainly relates to the field of cable technology, specifically a high and low temperature resistant computer flexible cable. Background Technology

[0002] A cable is a composite cable consisting of a conductor, an insulation layer, a shielding layer, and a protective sheath. It is mainly used to transmit electrical energy, electrical signals, or data. Its core function is to establish electrical connections between different devices or systems, ensuring the stable transmission of signals or energy.

[0003] Computer cables are cables specifically designed for use in computer systems. Their core function is to transmit high-frequency digital signals, power, or data between computer components or between a computer and external devices. Existing computer cables have limitations in structural design and protective performance. Most lack supporting structures and use a coaxial composite method to directly cover the conductor. In temperature cycling environments, this can easily lead to conductor bundle displacement and deformation, affecting signal transmission stability. With long-term use, delamination can occur, resulting in decreased conductivity. Furthermore, the protective layer is often a single layer, making it difficult to withstand complex operating conditions such as high and low temperatures, humidity, and vibration. Utility Model Content

[0004] This utility model addresses the problem of overly simplistic solutions in existing technologies by providing a high- and low-temperature resistant computer flexible cable. This solution addresses the technical problems mentioned in the background section, such as the lack of a support structure in existing computer cables, the use of coaxial composite direct conductor covering, and single-layer sheathing, which lead to conductor bundle displacement and deformation, insulation layer delamination, and difficulty in adapting to complex working conditions such as high and low temperatures, humidity, and vibration.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A high and low temperature resistant computer flexible cable includes a cable, which includes a conductor, a support frame, an insulation layer, a shielding layer, and a protective layer. The conductor, insulation layer, shielding layer, and protective layer adopt a coaxial composite structure from the inside to the outside. The support frame is used to fix the conductor so that the conductor is located in the central area of ​​the cable. The conductor is fused and bonded to the insulation layer through the support frame.

[0007] Furthermore, the conductor comprises multiple silver-plated copper alloy strands, which are twisted together in a spiral manner to form a circular conductor bundle.

[0008] Furthermore, the supporting skeleton includes a polyester fiber central reinforcing core and polyester fiber fine threads. The circular conductor bundle is centered on the axis of the polyester fiber central reinforcing core and is distributed at equal angles along its outer wall. The polyester fiber fine threads are spirally wound around the combination of the circular conductor bundle and the polyester fiber central reinforcing core at a winding angle of ±15°.

[0009] Furthermore, the insulating layer is coated onto the outside of the conductor fixed by the supporting skeleton through an extrusion process, and the insulating layer and the polyester fiber filaments are fixedly connected by melting.

[0010] Furthermore, the insulating layer and the shielding layer are fixed together by hot pressing. The shielding layer adopts a metal braided structure, which is composed of tin-plated copper wire with a diameter of 0.1-0.15mm in a twill braiding manner.

[0011] Furthermore, the protective layer comprises a buffer layer, a waterproof layer, and a wear-resistant layer from the inside out, and the outermost layer of the protective layer is provided with a strip-shaped rib structure made of wear-resistant rubber material. The rib structure is distributed in a ring array, with the ribs on the same ring being equidistant, and the ribs of adjacent rings being staggered along the cable axis.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. The support skeleton is centered on a polyester fiber core and is reinforced with polyester fiber threads wound at ±15° to form an "axial support + circumferential binding" structure. This structure can precisely fix the conductor bundle and resist deformation under complex environmental temperature cycles. At the same time, the insulation layer is fused and bonded to the support skeleton through an extrusion process. The material penetrates through the gaps in the threads into the connection between the core and the conductor, forming a dual fixation of mechanical interlocking and molecular diffusion. This maintains the connection strength between the insulation layer and the support skeleton and avoids the attenuation of conductivity due to structural delamination.

[0014] 2. The cable's protective layer has a multi-layer composite structure, which is more adaptable to complex working conditions such as high and low temperatures, humidity, and vibration than the traditional single-layer sheath. The ring-shaped staggered convex rib structure increases the coefficient of friction, prevents slippage during cable chain movement, and avoids stress concentration, maintaining flexibility and crack resistance.

[0015] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a partial structural schematic diagram of the main view of this utility model;

[0017] Figure 2 This is a top view of the present invention;

[0018] Figure 3This is a partial cross-sectional structural diagram of the present invention;

[0019] Numbering on the map:

[0020] 1. Cable; 2. Conductor; 3. Support frame; 4. Insulation layer; 5. Shielding layer; 6. Protective layer. Detailed Implementation

[0021] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] Please refer to the appendix carefully. Figure 1-3 A high and low temperature resistant computer flexible cable includes a cable 1. The cable 1 includes a conductor 2, a support frame 3, an insulation layer 4, a shielding layer 5, and a protective layer 6. The conductor 2, the insulation layer 4, the shielding layer 5, and the protective layer 6 adopt a coaxial composite structure from the inside to the outside. The support frame 3 is used to fix the conductor 2 so that the conductor 2 is located in the central area of ​​the cable 1. The conductor 2 is fused and bonded to the insulation layer 4 through the support frame 3.

[0024] In this embodiment, as shown in the figure, conductor 2 includes multiple silver-plated copper alloy strands, which are twisted together in a spiral manner to form a circular conductor bundle.

[0025] Through the above structure, multiple silver-plated copper alloy strands are spirally wound and twisted into a circular conductor bundle. The silver plating layer effectively inhibits high-temperature oxidation and reduces contact resistance. The spiral twisting structure enhances the performance of the individual conductor bundle, improves signal transmission stability, and enhances the flexibility of conductor 2, ensuring that no cracks occur when bent in high and low temperature environments, and ensuring reliable conductivity under extreme environments.

[0026] In this embodiment, as shown in the figure, the support frame 3 includes a polyester fiber central reinforcing core and polyester fiber fine threads. The circular conductor bundle is distributed at equal angles along its outer wall with the axis of the polyester fiber central reinforcing core as the center. The polyester fiber fine threads are spirally wound around the combination of the circular conductor bundle and the polyester fiber central reinforcing core at a winding angle of ±15°.

[0027] Through the above structure, the reinforcing core at the center of the supporting skeleton 3, with the excellent tensile strength of polyester fiber, effectively resists axial tensile stress in extreme temperature environments of low or high temperature, and avoids displacement of the conductor bundle due to external force or thermal expansion and contraction. The polyester fiber threads wound at ±15° spirally fix the conductor bundle through circumferential binding force, so that it maintains an equiangular distribution under frequent bending conditions. On the other hand, it provides an ideal substrate for the extrusion process of the insulation layer 4. Its gap structure facilitates the melting and penetration of the insulation material, enhances the interlocking strength with the insulation layer 4, and ensures a comprehensive improvement in the mechanical stability and structural reliability of the cable.

[0028] In this embodiment, as shown in the figure, the insulating layer 4 is wrapped around the conductor 2 fixed by the support frame 3 by an extrusion process, and the insulating layer 4 and the polyester fiber filaments are fixedly connected by melting.

[0029] Through the above structure, the insulation layer 4 is wrapped around the conductor 2 fixed by the support skeleton 3 by an extrusion process. In the high temperature molten state, the FEP and nano silica composite insulation material not only bond tightly with the polyester fiber fine wires, but also penetrate into the connection between the reinforcing core and the conductor bundle through the gap formed by the ±15° spiral winding between the fine wires. After cooling and solidification, a dual fixing structure of mechanical interlocking and molecular diffusion is formed. On the one hand, it improves the bonding strength between the insulation layer 4 and the support skeleton 3, and on the other hand, it forms a continuous sealing layer to prevent moisture or corrosive gases from entering, so that the cable can maintain structural stability and reliable electrical performance under high temperature and low temperature cycling conditions.

[0030] In this embodiment, as shown in the figure, the insulating layer 4 and the shielding layer 5 are fixed together by hot pressing. The shielding layer 5 adopts a metal braided structure, which is composed of tin-plated copper wires with a diameter of 0.1-0.15mm in a twill braiding manner.

[0031] Through the above structure, the insulation layer 4 (FEP / nano silica) and the shielding layer 5 (tinned copper wire twill braid) are fixed together by hot pressing to achieve integrated "insulation-shielding". The temperature resistance of FEP is used to ensure electrical insulation, and the flexibility and electromagnetic shielding effectiveness of the tinned copper wire mesh are used to maintain stable signal transmission and structural reliability in low temperature and high temperature environments.

[0032] In this embodiment, as shown in the figure, the protective layer 6 includes a buffer layer, a waterproof layer and a wear-resistant layer from the inside out. The outermost layer of the protective layer 6 is provided with a strip-shaped rib structure made of wear-resistant rubber material. The rib structure is distributed in a ring array. The ribs on the same ring are equidistant, and the ribs of adjacent rings are staggered along the axial direction of the cable 1.

[0033] Through the above structure, the buffer layer, waterproof layer and wear-resistant layer are constructed by the foamed polypropylene buffer layer, the thermoplastic elastomer waterproof layer and the aramid fiber wear-resistant layer to form a multi-protection system. With the external convex structure, multiple synergistic protection can be achieved, which can suppress the deformation and brittle damage of the cable in low temperature and high temperature environments and improve the environmental adaptability of the cable.

[0034] The specific operating procedure of this utility model is as follows: It should be noted that this manual focuses on the structure of a single cable 1 of the high and low temperature resistant computer flexible cable. The illustration only shows the structure of a single cable 1 and does not involve the end part that connects to the computer. In actual use, the cable can be electrically connected to the corresponding connection end according to the computer device interface type, such as USB, HDMI, network cable interface, etc. The layers of this high and low temperature resistant computer flexible cable work together through specific materials and structures to achieve high and low temperature resistance and ensure functional stability. The following describes the functional performance of each layer from the perspective of specific scenarios and material characteristics.

[0035] First, in industrial automation equipment, the silver plating layer of conductor 2 can effectively suppress the oxidation rate of copper at high temperatures, maintain low contact resistance, and avoid additional heat generation due to oxide film thickening. At the same time, the copper alloy still maintains good ductility at -40℃, and the flexibility of the silver plating layer further prevents conductor 2 from cracking when bent, ensuring signal transmission stability at extreme low temperatures.

[0036] The polyester fiber central reinforcing core and the polyester fiber fine thread wound around the outside of the conductor 2 are used to fix the supporting skeleton 3 inside the conductor 2. The polyester fiber central reinforcing core and the polyester fiber fine thread wound at ±15° work together to effectively suppress the risk of structural softening at high temperature and embrittlement at low temperature, thus preventing the conductor 2 from loosening.

[0037] The insulation layer 4 is made of polytetrafluoroethylene propylene and nano-silica composite. It is melt-bonded and intercalated with polyester fiber filaments through an extruder. The temperature resistance range of polytetrafluoroethylene propylene is -200℃ to 260℃, which prevents the insulation layer 4 from softening and sticking at high temperatures. The nano-silica filler inhibits the thermal expansion of polytetrafluoroethylene propylene and matches with the polyester fiber supporting the skeleton 3, reducing cracking or delamination caused by thermal stress or low temperature.

[0038] The 5-layer twill weave of the shielding layer can form a honeycomb shielding structure, and the tin-plated layer still maintains good ductility at high and low temperatures, avoiding the shielding failure caused by the breakage of the braided mesh.

[0039] The foamed polypropylene of protective layer 6 maintains a high compression resilience in an environment of -40℃ and absorbs mechanical vibration energy; the thermoplastic elastomer can prevent moisture, and the aramid fiber braided layer improves high temperature wear resistance through a surface silicone rubber coating, ensuring the long-term reliability of the cable under complex working conditions.

[0040] The raised rib structure on its outer wall not only avoids stress concentration caused by sharp edges, but also increases the coefficient of friction by increasing the surface contact area, effectively preventing the cable from slipping when it is being dragged by a cable chain or metal rail. In addition, the staggered arrangement of the raised ribs can also guide water droplets to slide off its surface, effectively resisting the adhesion of oil and dust in the environment.

[0041] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A high and low temperature resistant computer flexible cable, comprising cable (1), characterized in that: The cable (1) includes a conductor (2), a support frame (3), an insulation layer (4), a shielding layer (5), and a protective layer (6). The conductor (2), insulation layer (4), shielding layer (5), and protective layer (6) adopt a coaxial composite structure from the inside to the outside. The support frame (3) is used to fix the conductor (2) so that the conductor (2) is located in the central area of ​​the cable (1). The conductor (2) is fused and bonded to the insulation layer (4) through the support frame (3).

2. The high and low temperature resistant computer flexible cable of claim 1, wherein: The conductor (2) comprises multiple silver-plated copper alloy strands, which are twisted together in a spiral manner to form a circular conductor bundle.

3. The high and low temperature resistant computer flexible cable of claim 2, wherein: The supporting skeleton (3) includes a polyester fiber central reinforcing core and polyester fiber fine threads. The circular conductor bundle is centered on the axis of the polyester fiber central reinforcing core and is distributed at equal angles along its outer wall. The polyester fiber fine threads are spirally wound around the combination of the circular conductor bundle and the polyester fiber central reinforcing core at a winding angle of ±15°.

4. The high and low temperature resistant computer flexible cable of claim 3, wherein: The insulating layer (4) is coated on the outside of the conductor (2) fixed by the support skeleton (3) by an extrusion process, and the insulating layer (4) and the polyester fiber filament are fixedly connected by melting.

5. The high and low temperature resistant computer flexible cable of claim 1, wherein: The insulating layer (4) and the shielding layer (5) are fixed together by hot pressing. The shielding layer (5) adopts a metal braided structure and is composed of tin-plated copper wire with a diameter of 0.1-0.15mm in a twill braiding manner.

6. The high and low temperature resistant computer flexible cable of claim 1, wherein: The protective layer (6) includes a buffer layer, a waterproof layer and a wear-resistant layer from the inside to the outside. The outermost layer of the protective layer (6) is provided with a strip-shaped rib structure made of wear-resistant rubber material. The rib structure is distributed in a ring array. The ribs on the same ring are equidistant, and the ribs of adjacent rings are staggered along the axial direction of the cable (1).

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