High-temperature-resistant flame-retardant fluoroplastic film wrapped cable

Abstract

The utility model discloses a high-temperature-resistant flame-retardant fluoroplastic film wrapped cable which comprises a cable core. The cable core comprises a high-temperature-resistant data line, a high-temperature-resistant radio frequency line and a plurality of high-temperature-resistant insulated wires which are distributed on the same plane side by side. The cable provided by the utility model is excellent in performance, small in thickness and light in weight, and meets use conditions with requirements on installation space and weight.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to a high-temperature resistant, flame-retardant fluoroplastic film-wrapped cable. Background Technology

[0002] Cables are typically round, which is unsuitable for applications such as aerospace, aviation, weaponry, and ground vehicles where there are specific requirements regarding cable shape, installation space, and installation methods. The cable insulation generally uses a solid extruded structure, the shielding uses a braided round copper wire structure, and the sheath uses a solid extruded structure. This design results in excessive weight, which is unacceptable for applications like aerospace, aviation, and weaponry where weight is critical. At lower temperatures, the plastic components of the insulation and sheath may become brittle or even crack; at higher temperatures, the insulation and sheath may soften or even melt, leading to cable failure. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a high-temperature resistant, flame-retardant fluoroplastic film-wrapped cable with excellent performance, small thickness, and light weight, which meets the application conditions where installation space and weight are required.

[0004] This utility model provides a high-temperature resistant and flame-retardant fluoroplastic film-wrapped cable, including a cable core; the cable core includes one high-temperature resistant data line, one high-temperature resistant radio frequency line, and multiple high-temperature resistant insulating lines arranged side by side on the same plane; the cable core is wrapped with a polyimide composite tape inner sheath.

[0005] Furthermore, the high-temperature resistant data cable includes two first cores, each core comprising multiple silver-plated copper wires and a PFA insulation layer disposed on the outside of the multiple silver-plated copper wires. The two first cores are twisted together and then wrapped with a first PTFE tape insulation layer. A silver-plated copper wire shielding layer is woven outside the first PTFE tape insulation layer, and a first PFA sheath is disposed outside the silver-plated copper wire shielding layer.

[0006] Furthermore, the high-temperature resistant radio frequency cable includes a second core, which is composed of multiple silver-plated copper wires. The second core is wrapped with a PTFE microporous tape insulation layer. The PTFE microporous tape insulation layer is wrapped with a silver-plated copper tape inner shielding layer. The silver-plated copper tape inner shielding layer is woven with a silver-plated copper wire outer shielding layer. A second PFA sheath is disposed outside the silver-plated copper wire outer shielding layer.

[0007] Furthermore, the high-temperature resistant insulated wire includes a third core, which is composed of multiple high-nickel content copper alloy wires. The third core is wrapped with a PI composite film insulation layer, and the PI composite film insulation layer is wrapped with a second raw material tape insulation layer. The second raw material tape insulation layer is woven with a glass fiber sheath.

[0008] Furthermore, the inner sheath of the polyimide composite tape is woven with an aramid reinforcing layer; the aramid reinforcing layer is wrapped with a mica tape heat insulation layer; and the mica tape heat insulation layer is woven with a glass fiber outer sheath.

[0009] Furthermore, the high-temperature resistant insulated wires are provided in 10 pieces; five of the high-temperature resistant insulated wires are provided on one side of the high-temperature resistant data line and the high-temperature resistant radio frequency line, and the remaining five of the high-temperature resistant insulated wires are provided on the other side.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] (1) The single wires of the cable core of this utility model are arranged in a parallel distribution structure. The inner sheath of the cable core is wrapped with polyimide composite tape, which makes the cable core structure more stable and the cable thickness smaller, thus meeting the usage conditions that require installation space.

[0012] (2) The high-temperature resistant radio frequency cable is wrapped with a PTFE microporous tape insulation layer. The PTFE microporous tape is an insulation material with excellent electrical properties and a density of only 0.9, making it lightweight. The inner shielding layer is wrapped with silver-plated copper tape, which is thinner, making the cable smaller and lighter. The high-temperature resistant insulated wire is made of high-nickel copper alloy wire, which has excellent conductivity, small outer diameter, and high temperature resistance. The wrapping structure is composed of PI composite film insulation layer and raw material tape insulation layer, which makes the outer diameter of the cable insulation layer smaller and lighter. The overall lightweight material selection of the cable greatly reduces the weight of the cable and meets the usage conditions with weight requirements.

[0013] It should be understood that the description in this utility model description section is not intended to limit the key or essential features of the embodiments of this utility model, nor is it intended to restrict the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 A schematic diagram of the cross-sectional structure of a cable wrapped with a high-temperature resistant and flame-retardant fluoroplastic film.

[0016] Figure 2 A schematic diagram of the cross-sectional structure of a high-temperature resistant data cable;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of a high-temperature resistant radio frequency cable.

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of a high-temperature resistant insulated wire.

[0019] The labels in the diagram are: 1. High-temperature resistant data cable; 2. High-temperature resistant radio frequency cable; 3. High-temperature resistant insulated wire; 4. Polyimide composite tape inner sheath; 5. Aramid reinforcing layer; 6. Mica tape heat insulation layer; 7. Glass fiber outer sheath.

[0020] 11. First wire core; 12. First raw material tape insulation layer; 13. Silver-plated copper wire shielding layer; 14. First PFA sheath.

[0021] 21. Second core wire; 22. PTFE microporous tape insulation layer; 23. Silver-plated copper tape inner shielding layer; 24. Silver-plated copper wire outer shielding layer; 25. Second PFA sheath;

[0022] 31. Third core wire; 32. PI composite film insulation layer; 33. Second raw material tape insulation layer; 34. Glass fiber protective layer. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0024] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] Please refer to Figures 1-4 The present invention provides a high-temperature resistant and flame-retardant fluoroplastic film-wrapped cable, including a cable core; the cable core includes a high-temperature resistant data line 1, a high-temperature resistant radio frequency line 2, and multiple high-temperature resistant insulating lines 3 arranged side by side on the same plane.

[0026] In this embodiment, the high-temperature resistant data line 1, high-temperature resistant radio frequency line 2, and high-temperature resistant insulated line 3 of the cable core are arranged in a side-by-side distribution structure. The inner sheath 4 of polyimide composite tape is wrapped around the outside of the cable core to make the cable core structure more stable and the cable thickness smaller, which meets the usage conditions that require installation space.

[0027] In a preferred embodiment, such as Figure 2 As shown, the high-temperature resistant data cable 1 includes two first cores 11. Each first core 11 includes multiple silver-plated copper wires and a PFA insulation layer disposed on the outside of the multiple silver-plated copper wires. After the two first cores 11 are twisted together, a first raw material tape insulation layer 12 is wrapped around them. A silver-plated copper wire shielding layer 13 is braided outside the first raw material tape insulation layer 12. A first PFA sheath 14 is disposed outside the silver-plated copper wire shielding layer 13.

[0028] In this embodiment, the high-temperature resistant data cable 1 uses silver-plated copper wire as the core, which has excellent conductivity, small outer diameter, and high temperature resistance; it is wrapped with a first raw material tape insulation layer 12, which has a small outer diameter, light weight, and excellent electrical performance.

[0029] In a preferred embodiment, such as Figure 3 As shown, the high-temperature resistant radio frequency cable 2 includes a second core 21, which is composed of multiple silver-plated copper wires. The second core 21 is wrapped with a PTFE microporous tape insulation layer 22. The PTFE microporous tape insulation layer 22 is wrapped with a silver-plated copper tape inner shielding layer 23. The silver-plated copper tape inner shielding layer 23 is braided with a silver-plated copper wire outer shielding layer 24. A second PFA sheath 25 is provided outside the silver-plated copper wire outer shielding layer 24.

[0030] In this embodiment, the high-temperature resistant radio frequency cable 2 uses silver-plated copper wire as the core, which has excellent conductivity, small outer diameter, and high temperature resistance; it is wrapped with a PTFE microporous tape insulation layer 22. The PTFE microporous tape is used as an insulation material, which has excellent electrical properties, a density of only 0.9, and is lightweight; the inner shielding layer 23 wrapped with silver-plated copper tape is even thinner, making the cable smaller and lighter.

[0031] In a preferred embodiment, such as Figure 4 As shown, the high-temperature resistant insulated wire 3 includes a third core 31, which is composed of multiple high-nickel content copper alloy wires. The third core 31 is wrapped with a PI composite film insulation layer 32, the PI composite film insulation layer 32 is wrapped with a second raw material tape insulation layer 33, and the second raw material tape insulation layer 33 is woven with a glass fiber sheath 34.

[0032] In this embodiment, the high-temperature resistant insulated wire 3 uses a high-nickel content copper alloy wire as the core, which has excellent conductivity, small outer diameter, and high temperature resistance; the wrapping structure of the combination of PI composite film insulation layer 32 and second raw material tape insulation layer 33 makes the outer diameter of the cable insulation layer smaller and the weight lighter.

[0033] In a preferred embodiment, such as Figure 1 As shown, the inner protective layer 4 of the polyimide composite tape is woven with an aramid reinforcing layer 5; the aramid reinforcing layer 5 is wrapped with a mica tape heat insulation layer 6; and the mica tape heat insulation layer 6 is woven with a glass fiber outer protective layer 7.

[0034] In this embodiment, the cable core is sequentially provided with an inner sheath of polyimide composite tape 4, an aramid reinforcing layer 5, a mica tape heat insulation layer 6, and a glass fiber outer sheath 7, ensuring that the cable can be used for a long time in low-temperature or high-temperature environments; the mica tape heat insulation layer 6 and the glass fiber outer sheath 7 ensure that the cable can still be used for a period of time under flame burning conditions, thus improving the fire resistance of the cable.

[0035] In a preferred embodiment, such as Figure 1As shown, there are 10 high-temperature resistant insulated wires 3; 5 high-temperature resistant insulated wires 3 are provided on one side of the high-temperature resistant data line 1 and the other 5 high-temperature resistant insulated wires 3 are provided on the other side. The structure is reasonably designed to meet the needs of cable data transmission.

[0036] In the selection of materials and structural design of the cable core, insulation layer, shielding layer, inner sheath, heat insulation layer, and outer sheath, this application fully considers the miniaturization of the cable's external dimensions and the overall lightweighting of the cable. It abandons the traditional stranded cable processing method and adopts a parallel arrangement of cable cores, with a polyimide composite tape inner sheath 4 wrapped around the cable core, making the cable core structure more stable and the cable thickness smaller. The design of the mica tape heat insulation layer 6 and the glass fiber outer sheath 7 ensures that the insulation will not immediately melt when the cable is subjected to flame burning, guaranteeing short-term use of the cable under flame burning conditions and resulting in excellent cable performance.

[0037] In the description of this specification, the terms "one embodiment," "some embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A high-temperature resistant, flame-retardant fluoroplastic film-wrapped cable, characterized in that, The cable core includes a high-temperature resistant data line (1), a high-temperature resistant radio frequency line (2), and multiple high-temperature resistant insulated lines (3) arranged side by side on the same plane; the cable core is wrapped with a polyimide composite tape inner sheath (4).

2. The high-temperature resistant, flame-retardant fluoroplastic film-wrapped cable according to claim 1, characterized in that, The high-temperature resistant data cable (1) includes two first cores (11). Each first core (11) includes multiple silver-plated copper wires and a PFA insulation layer disposed on the outside of the multiple silver-plated copper wires. The two first cores (11) are twisted together and then wrapped with a first raw material tape insulation layer (12). A silver-plated copper wire shielding layer (13) is woven outside the first raw material tape insulation layer (12). A first PFA sheath (14) is disposed outside the silver-plated copper wire shielding layer (13).

3. The high-temperature resistant, flame-retardant fluoroplastic film-wrapped cable according to claim 1, characterized in that, The high-temperature resistant radio frequency cable (2) includes a second core (21), which is composed of multiple silver-plated copper wires. The second core (21) is wrapped with a PTFE microporous tape insulation layer (22). The PTFE microporous tape insulation layer (22) is wrapped with a silver-plated copper tape inner shielding layer (23). The silver-plated copper tape inner shielding layer (23) is woven with a silver-plated copper wire outer shielding layer (24). The silver-plated copper wire outer shielding layer (24) is provided with a second PFA sheath (25).

4. The high-temperature resistant, flame-retardant fluoroplastic film-wrapped cable according to claim 1, characterized in that, The high-temperature resistant insulated wire (3) includes a third core (31), which is composed of multiple high-nickel content copper alloy wires. The third core (31) is wrapped with a PI composite film insulation layer (32), and the PI composite film insulation layer (32) is wrapped with a second raw material tape insulation layer (33). The second raw material tape insulation layer (33) is woven with a glass fiber protective layer (34).

5. The high-temperature resistant, flame-retardant fluoroplastic film-wrapped cable according to claim 1, characterized in that, The inner protective layer (4) of the polyimide composite tape is woven with an aramid reinforcing layer (5); the aramid reinforcing layer (5) is wrapped with a mica tape heat insulation layer (6); and the mica tape heat insulation layer (6) is woven with a glass fiber outer protective layer (7).

6. The high-temperature resistant, flame-retardant fluoroplastic film-wrapped cable according to claim 1, characterized in that, The high-temperature resistant insulated wire (3) is provided with 10 wires; the high-temperature resistant data line (1) and the high-temperature resistant radio frequency line (2) are provided with 5 high-temperature resistant insulated wires (3) on one side and the other side is provided with the remaining 5 high-temperature resistant insulated wires (3).

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