CN212847814U - High-temperature-resistant cable - Google Patents
High-temperature-resistant cable Download PDFInfo
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- CN212847814U CN212847814U CN202021976299.1U CN202021976299U CN212847814U CN 212847814 U CN212847814 U CN 212847814U CN 202021976299 U CN202021976299 U CN 202021976299U CN 212847814 U CN212847814 U CN 212847814U
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Abstract
The application relates to a high temperature resistant cable, it includes the sheath and sets up a plurality of cable cores in the sheath, is provided with the partition subassembly in the sheath, separates the subassembly and becomes a plurality of wiring districts with the sheath internal partitioning, and the cable core is located the wiring district, and the sheath includes isolation layer, heat-resistant layer and protective layer from inside to outside in proper order. Through setting up heat-resistant layer and isolation layer, improved the heat resistance of cable, reduced the influence of high temperature to the cable to the life of cable has been increased.
Description
Technical Field
The application relates to the field of cable technology, in particular to a high-temperature-resistant cable.
Background
A cable is a power or signal transmission device, and is generally composed of several wires or groups of wires.
Chinese utility model patent with patent publication No. CN201629167U discloses a cable, which comprises a cable core and an insulator coated outside the cable core, wherein the cable core comprises a copper conductor and a plurality of aluminum conductors embedded therein. The insulator further comprises a plurality of sensing fibers which are uniformly distributed on the annular wall.
With the cable, the inventor finds that the service life of the cable is short when the cable works in a high-temperature environment, and needs to be improved.
SUMMERY OF THE UTILITY MODEL
In order to improve the short problem of cable life when working in high temperature environment, this application provides a high temperature resistant cable.
The application provides a high temperature resistant cable adopts following technical scheme:
the utility model provides a high temperature resistant cable, includes the sheath and set up in a plurality of cable cores in the sheath, be provided with the partition subassembly in the sheath, the partition subassembly will the sheath is inside to be separated into a plurality of wiring districts, the cable core is located in the wiring district, the sheath includes isolation layer, heat-resistant layer and protective layer from inside to outside in proper order.
By adopting the technical scheme, when the cable is used in a high-temperature environment, the heat-resistant layer and the isolation layer are coated on the outer side of the cable core, so that the heat resistance of the cable is improved, the influence of high temperature on the cable is reduced, and the service life of the cable is prolonged; the protective layer plays the guard action to cable inner structure, has reduced the wearing and tearing of cable inner structure for the cable is more durable.
Optionally, the partition assembly comprises a reinforcing strip arranged in the sheath and a plurality of elastic strips arranged on the reinforcing strip, the elastic strips are circumferentially distributed along the peripheral wall of the reinforcing strip, each elastic strip is far away from the end part of the reinforcing strip and fixedly connected with the sheath, and the wiring area is formed by splicing the adjacent elastic strips, the sheath and the reinforcing strip.
By adopting the technical scheme, the reinforcing strips are arranged, so that the reinforcing strips can support the cable, the structural strength of the cable is improved, and the cable is not easy to bend and damage; set up the elasticity strip, the elasticity of elasticity strip makes the cable receive the trend that has the reconversion after the extrusion, has increased the compressive capacity of cable.
Optionally, every in the wiring district the cable core all is provided with threely, three the cable core is the triangle-shaped and distributes, every the cable core all includes the conductor, set up in the shielding layer in the conductor outside with set up in the insulating layer in the shielding layer outside.
By adopting the technical scheme, the triangular structure has better stability, the three cable cores are distributed in a triangular shape to enhance the structural stability of the cable, and the cable is not easy to damage when the cable is extruded; the shielding layer is arranged to isolate the electromagnetic field of the conductor from the external electromagnetic field, so that the distribution of the electromagnetic field is equalized, when the conductor is damaged, leaked current can flow into the grounding grid along the shielding layer, and the safety of the cable is improved; the insulating layer is arranged, so that the conductor and the surrounding environment or the adjacent conductor are mutually insulated, the transmitted current is transmitted along the conductor without flowing to the outside, the condition that the human body touches the cable to cause electric shock is reduced, and the safety of the cable is improved.
Optionally, filler strips are disposed in gaps between adjacent cable cores and between the cable cores and the wiring area.
Through adopting above-mentioned technical scheme, fix a position the cable core in the wiring district for cable inner structure's stability is better, and has strengthened the structural strength of cable.
Optionally, the remaining gaps of each of the wiring regions are filled with fillers.
Through adopting above-mentioned technical scheme, fix a position and protect cable core and packing in the wiring district, improved the structural strength of cable, when sheath parcel wiring district for the sheath surface is more complete, has improved the wearability of cable.
Optionally, the filler is a heat-resistant material.
Through adopting above-mentioned technical scheme, improved the heat resistance of cable for the cable is more durable under high temperature environment.
Optionally, the insulating layer is glass fiber.
Through adopting above-mentioned technical scheme, glass fiber has good heat resistance and insulating nature, when insulating the conductor, has improved the heat resistance of cable for the cable is more durable.
Optionally, an adhesive is coated on the outer side of the insulating layer, the adhesive is made of asbestos fibers, and the insulating layer is connected with the filler and the filler strip through the adhesive.
By adopting the technical scheme, the asbestos fiber is heat-resistant, non-combustible, water-resistant, acid-resistant and chemical-resistant, the heat resistance and the corrosion resistance of the cable core are improved, and the cable core is more durable.
Optionally, the heat-resistant layer is made of glass fiber, and polytetrafluoroethylene is coated between the heat-resistant layer and the protective layer.
Through adopting above-mentioned technical scheme, glass fiber heat resistance is better, but the wearability is relatively poor, and polytetrafluoroethylene's coefficient of friction is lower, paints polytetrafluoroethylene between heat-resistant layer and protective layer, has reduced the wearing and tearing between heat-resistant layer and the protective layer for heat-resistant layer and protective layer are more durable.
In summary, the present application includes at least one of the following beneficial technical effects:
by arranging the heat-resistant layer and the isolation layer, the heat resistance of the cable is improved, and the influence of high temperature on the cable is reduced, so that the service life of the cable is prolonged;
by arranging the elastic strip, the elasticity of the elastic strip enables the cable to have the tendency of recovering the original shape after being extruded, and the pressure resistance of the cable is improved;
through setting up the packing, fix a position the cable core in the wiring district for the structural stability of cable is better, and has strengthened the structural strength of cable.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of the present embodiment.
Description of reference numerals: 1. a sheath; 11. an isolation layer; 12. a heat-resistant layer; 13. a protective layer; 2. a cable core; 21. a conductor; 22. a shielding layer; 23. an insulating layer; 3. a partition assembly; 31. a reinforcing strip; 32. an elastic strip; 4. a wiring area; 5. filling the strip; 6. a filler; 7. and (3) an adhesive.
Detailed Description
The present application is described in further detail below with reference to fig. 1.
The embodiment of the application discloses a high temperature resistant cable. Referring to fig. 1, the high temperature resistant cable includes a sheath 1 and several cable cores 2.
Referring to fig. 1, the sheath 1 includes an isolation layer 11, a heat-resistant layer 12, and a protective layer 13 in this order from inside to outside. In this embodiment, the isolation layer 11 is a mica tape. The heat-resistant layer 12 is wrapped on the outer side of the isolation layer 11, and the material of the heat-resistant layer 12 is glass fiber. The protective layer 13 is wrapped on the outer side of the heat-resistant layer 12, and polytetrafluoroethylene is coated between the protective layer 13 and the heat-resistant layer 12.
Referring to fig. 1, a partition component 3 is disposed in a sheath 1, the partition component 3 includes a reinforcing strip 31 and a plurality of elastic strips 32, the reinforcing strip 31 is disposed in the sheath 1, and in this embodiment, the reinforcing strip 31 is a filling rope. A plurality of elastic strips 32 are circumference evenly distributed along the periphery wall of reinforcing strip 31, and every elastic strip 32 is close to the tip of reinforcing strip 31 all with reinforcing strip 31 fixed connection, and every elastic strip 32 keeps away from the tip of reinforcing strip 31 all with sheath 1 fixed connection, and the length size of every elastic strip 32 is equal the same. Two adjacent elasticity strips 32, sheath 1 and reinforcement strip 31 splice and are formed with wiring district 4, and wiring district 4 corresponds and is provided with a plurality of.
Referring to fig. 1, a plurality of cable cores 2 are located each wiring district 4 respectively, and cable core 2 is provided with threely in every wiring district 4, and three cable core 2 is the triangle-shaped distribution, and wherein two cable cores 2 all are close to sheath 1 and set up, and another cable core 2 is close to the setting of strengthening the strip 31.
Referring to fig. 1, each cable core 2 includes a conductor 21, a shielding layer 22 and an insulating layer 23, and in this embodiment, the conductor 21 is a multi-stranded nickel-plated copper wire. The shielding layer 22 is wrapped on the outer side of the conductor 21, and in the embodiment, the shielding layer 22 is woven by nickel-plated copper. The insulating layer 23 is wrapped on the outer side of the shielding layer 22, and the insulating layer 23 is made of glass fiber.
Referring to fig. 1, filler strips 5 are fixed in gaps between adjacent cable cores 2 and between the cable cores 2 and the corresponding wiring areas 4, and in this embodiment, the filler strips 5 are filler ropes. The rest gaps of each wiring region 4 are filled with fillers 6, the fillers 6 are high temperature resistant materials, and in this embodiment, the fillers 6 are high temperature resistant thermosetting elastic silicone gel.
Referring to fig. 1, the outside of the insulating layer 23 is coated with an adhesive 7, the adhesive 7 is made of asbestos fiber, and the insulating layer 23 is fixedly connected with the filler 6 and the filler strip 5 through the adhesive 7.
The implementation principle of the high-temperature-resistant cable in the embodiment of the application is as follows:
the heat-resistant layer 12 and the isolation layer 11 are coated on the outer side of the cable core 2, so that the heat resistance of the cable is improved, the influence of high temperature on the cable is reduced, and the service life of the cable is prolonged.
The filler 6, the adhesive 7 and the insulating layer 23 all have good heat resistance, and further improve the heat resistance of the cable, so that the cable is more durable.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. A high temperature resistant cable characterized in that: including sheath (1) and set up in a plurality of cable core (2) in sheath (1), be provided with in sheath (1) and separate subassembly (3), separate subassembly (3) will sheath (1) internal partitioning becomes a plurality of wiring district (4), cable core (2) are located in wiring district (4), sheath (1) includes isolation layer (11), heat-resistant layer (12) and protective layer (13) from inside to outside in proper order.
2. The high temperature resistant cable of claim 1, wherein: separate subassembly (3) including set up in strengthen strip (31) in sheath (1) with set up in strengthen a plurality of elasticity strip (32) on strip (31), it is a plurality of elasticity strip (32) are followed the periphery wall of strengthening strip (31) is circumference and distributes, every elasticity strip (32) are kept away from strengthen the tip of strip (31) with sheath (1) fixed connection, wiring district (4) are by adjacent elasticity strip (32) sheath (1) and strengthen strip (31) concatenation and form.
3. The high temperature resistant cable of claim 1, wherein: every in wiring district (4) cable core (2) all are provided with threely, three cable core (2) are the triangle-shaped and distribute, every cable core (2) all include conductor (21), set up in shielding layer (22) in the conductor (21) outside with set up in insulating layer (23) in the shielding layer (22) outside.
4. The high temperature resistant cable of claim 3, wherein: and filling strips (5) are arranged between the adjacent cable cores (2) and between the cable cores (2) and the wiring areas (4).
5. The high temperature resistant cable of claim 4, wherein: the rest gaps of each wiring region (4) are filled with fillers (6).
6. The high temperature resistant cable of claim 5, wherein: the filler (6) is a high-temperature resistant material.
7. The high temperature resistant cable of claim 5, wherein: the insulating layer (23) is made of glass fiber.
8. The high temperature resistant cable of claim 7, wherein: the outside of the insulating layer (23) is coated with an adhesive (7), the adhesive (7) is made of asbestos fibers, and the insulating layer (23) is connected with the filler (6) and the filling strip (5) through the adhesive (7).
9. The high temperature resistant cable of claim 1, wherein: the heat-resistant layer (12) is made of glass fiber, and polytetrafluoroethylene is coated between the heat-resistant layer (12) and the protective layer (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021976299.1U CN212847814U (en) | 2020-09-11 | 2020-09-11 | High-temperature-resistant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021976299.1U CN212847814U (en) | 2020-09-11 | 2020-09-11 | High-temperature-resistant cable |
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| Publication Number | Publication Date |
|---|---|
| CN212847814U true CN212847814U (en) | 2021-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021976299.1U Active CN212847814U (en) | 2020-09-11 | 2020-09-11 | High-temperature-resistant cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117270133A (en) * | 2023-11-22 | 2023-12-22 | 江苏中天科技股份有限公司 | Flame-retardant optical unit, flame-retardant optical cable unit and combined flame-retardant optical cable |
-
2020
- 2020-09-11 CN CN202021976299.1U patent/CN212847814U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117270133A (en) * | 2023-11-22 | 2023-12-22 | 江苏中天科技股份有限公司 | Flame-retardant optical unit, flame-retardant optical cable unit and combined flame-retardant optical cable |
| CN117270133B (en) * | 2023-11-22 | 2024-02-20 | 江苏中天科技股份有限公司 | Flame-retardant optical unit, flame-retardant optical cable unit and combined flame-retardant optical cable |
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