Motion flexible high-temperature-resistant cable
By employing a polyimide interlayer and a copper wire winding shielding layer in the cable, the durability problem of the cable under high temperature and motion environments is solved, achieving high-temperature flexibility and stable data transmission.
Patent Information
- Application Number
- CN202423245336.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Existing cables have limited high-temperature resistance in harsh environments, are prone to aging, and are not adaptable to dynamic environments.
It adopts a three-layer structure design with a polyimide layer sandwiched between inner and outer flame-retardant layers, combined with a copper wire winding shielding layer and PTFE material to enhance high temperature resistance and flexibility, and uses a Teflon insulation layer and glass fiber tensile rope to improve insulation and tensile strength.
It achieves flexibility and durability in high-temperature environments up to 400℃, reduces cable bending resistance, is suitable for motion environments, and improves data transmission performance.
Smart Images
Figure CN223797183U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a cable, specifically a flexible, high-temperature resistant cable for motion applications. Background Technology
[0002] Cables are typically rope-like cables made up of several or groups of conductors twisted together. Each group of conductors is insulated from each other and is often twisted around a central core. The entire cable is covered with a highly insulating outer layer and is widely used in society.
[0003] Furthermore, many cable applications currently operate in harsh environments (such as vacuum motion environments above 350°C). Existing cables exhibit limited high-temperature resistance, typically only able to withstand temperatures above 200°C, and their adaptability to motion environments is also limited, making them prone to aging. Therefore, a flexible, high-temperature resistant cable for motion applications was designed to address these issues.
[0004] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this utility model and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this utility model. Utility Model Content
[0005] To overcome the shortcomings of the prior art, the purpose of this utility model is to provide a flexible, high-temperature resistant cable for motion.
[0006] To achieve the above and other related objectives, the technical solution provided by this utility model is: a flexible, high-temperature resistant cable for motion, comprising a data transmission unit, a shielding layer, and a protective layer arranged sequentially from the inside out; the data transmission unit comprises a plurality of core wires, each core wire consisting of at least one conductor with an outer insulating layer; a filler is provided between the data transmission unit and the shielding layer; the protective layer comprises, from the inside out, an inner flame-retardant layer, a polyimide layer, and an outer flame-retardant layer. In this solution, polyimide is used as an interlayer between the three layers of the cable protective layer, which can withstand high temperatures of 400℃, improving temperature resistance. The polyimide layer, sandwiched between the two flame-retardant layers, can control the temperature, ensuring that the internal core wires are not affected by temperatures above 200℃, thus providing insulation.
[0007] Furthermore, both the inner and outer flame-retardant layers are made of PTFE. In this design, the PTFE material used for the flame-retardant layer provides good flame-retardant performance and is not prone to aging.
[0008] Furthermore, the shielding layer is made of copper wire wound together. In this solution, the shielding layer adopts a copper wire wound structure, which can achieve better shielding effect and relieve shielding stress. It is also more flexible than a braided structure, which can reduce the resistance and height when the cable is bent, making it more suitable for sports environments.
[0009] Furthermore, the shielding layer has a shielding rate of ≥80%. In this solution, a shielding rate of over 80% can guarantee the shielding effect.
[0010] Furthermore, an isolation layer is also provided on the inner side of the shielding layer. In this design, providing an isolation layer on the inner side of the shielding layer can provide better heat insulation and protection, achieving both internal and external protection.
[0011] Furthermore, the insulating layer is made of PTFE. In this design, PTFE can be applied to the outside of the data transmission unit using a reverse winding method, and PTFE also serves as a flame retardant.
[0012] Furthermore, the insulation layer is made of Teflon, and its thickness is 0.22mm~0.28mm. In this design, Teflon has good tensile strength, excellent insulation performance, and can ensure that the cable can reach a vacuum environment. Compared with traditional PE materials, the insulation layer can be made relatively thinner, while the strength and elongation are improved. The strength can reach more than 30MPa, and the bending performance is also relatively better.
[0013] Furthermore, the filler is a tensile rope, and the tensile rope is made of glass fiber or bulletproof wire. In this solution, the tensile rope is used as the filler, which can both fill and increase tensile strength; using glass fiber or bulletproof wire as the material of the tensile rope can achieve polar tensile strength, which is more suitable for high and low temperature semiconductor environments and less prone to shedding compared to traditional cotton rope.
[0014] Furthermore, the core wire comprises two conductors covered by the aforementioned insulating layer. In this design, a dual-conductor structure is used as the core wire, resulting in better data transmission performance.
[0015] Furthermore, the number of core wires is 2 to 20. In this solution, ensuring the number of core wires guarantees data transmission performance.
[0016] Due to the application of the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows:
[0017] This utility model designs a flexible, high-temperature resistant cable for sports. It uses polyimide as an interlayer between the three layers of the cable protection layer, which can withstand temperatures up to 400℃, improving temperature resistance. The polyimide layer, sandwiched between two flame-retardant layers, controls the temperature, ensuring that the internal core wires are not affected by temperatures above 200℃, thus providing insulation. The shielding layer uses a copper wire winding structure, which provides better shielding and relieves shielding stress. It is also more flexible than a braided structure, reducing resistance and height when the cable bends, making it more suitable for sports environments. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the cross-sectional structure of the cable of this utility model. Figure 1 ;
[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the cable of this utility model. Figure 2 ;
[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the cable of this utility model. Figure 3 ;
[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the cable of this utility model. Figure 4 ;
[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the cable of this utility model. Figure 5 ;
[0023] In the above figures, 1 is the conductor; 2 is the insulating layer; 3 is the filler; 4 is the shielding layer; 5 is the isolation layer; 6 is the inner flame retardant layer; 7 is the polyimide layer; and 8 is the outer flame retardant layer. Detailed Implementation
[0024] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0025] It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0028] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.
[0029] Example:
[0030] See appendix Figure 1 and attached Figure 2As shown, this embodiment provides a flexible, high-temperature resistant cable, comprising a data transmission unit, a shielding layer 4, and a protective layer arranged sequentially from the inside out. The data transmission unit includes several core wires, each core wire consisting of at least one conductor 1 with an outer insulation layer 2. A filler 3 is provided between the data transmission unit and the shielding layer 4. The protective layer, from the inside out, includes an inner flame-retardant layer 6, a polyimide layer 7, and an outer flame-retardant layer 8. Polyimide is used as an interlayer between the three layers of the cable's protective layer, which can withstand temperatures up to 400℃, improving temperature resistance. The polyimide layer 7, sandwiched between the two flame-retardant layers, controls the temperature, ensuring that the internal core wires are not affected by temperatures above 200℃, thus providing insulation. Both the inner flame-retardant layer 6 and the outer flame-retardant layer 8 are made of PTFE. The flame-retardant layer made of PTFE has good flame-retardant properties and is not prone to aging. The shielding layer 4 is made of wound copper wire. Shielding layer 4 employs a copper wire winding structure, which provides better shielding and relieves shielding stress. This reduces the cable's bending radius, making the cable more flexible than braided structures, reducing resistance and height during bending, and making it more suitable for sports environments. Shielding layer 4 has a shielding rate of ≥80%. A shielding rate of over 80% ensures effective shielding.
[0031] See appendix Figure 1 and attached Figure 2 As shown, an isolation layer 5 is also provided inside the shielding layer 4. The isolation layer 5 inside the shielding layer 4 provides better heat insulation and protection, achieving both internal and external protection. The isolation layer 5 is made of PTFE. PTFE can be applied to the outside of the data transmission unit using a reverse winding method, and PTFE also has flame-retardant properties.
[0032] In some embodiments, the insulation layer 2 is made of Teflon, and its thickness is 0.22mm to 0.28mm. The thickness of the insulation layer 2 can be 0.22mm, 0.24mm, 0.25mm, 0.26mm, or 0.28mm. In this embodiment, Teflon has good tensile strength, excellent insulation performance, and can ensure that the cable can reach a vacuum environment. Compared with traditional PE materials, the insulation layer 2 can be made relatively thinner, while its strength and elongation are improved, with a strength reaching over 30MPa, and its bending flexibility is also relatively better.
[0033] In some embodiments, the filler 3 is a tensile rope, and the tensile rope is made of glass fiber or bulletproof wire. In this embodiment, the filler 3 is a tensile rope, which can serve both as a filler and as an increase in tensile strength; using glass fiber or bulletproof wire as the material of the tensile rope can achieve polar tensile strength, which is more suitable for high and low temperature semiconductor 1 environments than traditional cotton rope, and is less prone to shedding.
[0034] See appendix Figure 3 Appendix Figure 4and attached Figure 5 As shown, the core wire consists of two conductors 1, each covered by an insulation layer 2. Using a double-conductor 1 structure as the core wire results in better data transmission performance.
[0035] See appendix Figure 1 To be continued Figure 5 As shown, the number of core wires ranges from 2 to 20. Specifically, the number of core wires can be 2, 4, 5, 6, 10, or 20. Ensuring the correct number of core wires guarantees effective data transmission.
[0036] In some implementations, see Appendix Figure 3 As shown, the core wire consists of two conductors 1 with an outer insulating layer 2, and the number of core wires is 4.
[0037] In some implementations, see Appendix Figure 4 As shown, the core wire consists of two conductors 1 with an outer insulating layer 2, and the number of core wires is 5.
[0038] In some implementations, see Appendix Figure 5 As shown, the core wire consists of two conductors 1 with an outer insulating layer 2, and the number of core wires is 10.
[0039] This utility model designs a flexible, high-temperature resistant cable for sports. It uses polyimide as an interlayer between the three layers of the cable protection layer, which can withstand temperatures up to 400℃, improving temperature resistance. The polyimide layer 7, sandwiched between two flame-retardant layers, controls the temperature, ensuring that the internal core wires are not affected by temperatures above 200℃, thus providing insulation. The shielding layer 4 uses a copper wire winding structure, which provides better shielding and relieves shielding stress. It is more flexible than a braided structure, reducing resistance and height when the cable bends, making it more suitable for sports environments.
[0040] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.
Claims
1. A motion-flexible high temperature resistant cable, characterized by: It comprises a data transmission unit, a shielding layer (4) and a protective layer arranged from inside to outside in sequence. The data transmission unit comprises a plurality of core wires, and each core wire is composed of a conductor (1) wrapped with an insulating layer (2). A filler (3) is arranged between the data transmission unit and the shielding layer (4). The protective layer comprises an inner flame-retardant layer (6), a polyimide layer (7) and an outer flame-retardant layer (8) arranged from inside to outside in sequence.
2. A flexible high temperature resistant cable for motion according to claim 1, characterized in that: The inner flame-retardant layer (6) and the outer flame-retardant layer (8) are both made of PTFE.
3. A flexible high temperature resistant cable for motion according to claim 1, characterized in that: The shielding layer (4) is made of copper wire.
4. A flexible high temperature resistant cable for motion according to claim 3, characterized in that: The shielding rate of the shielding layer (4) is greater than or equal to 80%.
5. A flexible high temperature resistant cable for motion according to claim 1, characterized in that: An isolation layer (5) is further arranged on the inner side of the shielding layer (4).
6. A flexible high temperature resistant cable for motion according to claim 5, characterized in that: The isolation layer (5) is made of PTFE.
7. A flexible high temperature resistant cable for motion applications according to claim 1, characterized in that: The insulating layer (2) is made of Teflon, and the thickness of the insulating layer (2) is 0.22mm-0.28mm.
8. A flexible high temperature resistant cable for motion applications according to claim 1, characterized in that: The filler (3) is a tensile rope, and the material of the tensile rope is glass fiber or bulletproof silk.
9. A flexible high temperature resistant cable for motion applications according to claim 1, characterized in that: The core wire comprises two conductors (1) wrapped with the insulating layer (2).
10. The flexible high temperature resistant cable of claim 1, wherein: The number of the core wires is 2-20.