CN212724758U - High-temperature-resistant signal transmission cable for automobile - Google Patents
High-temperature-resistant signal transmission cable for automobile Download PDFInfo
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- CN212724758U CN212724758U CN202021395654.6U CN202021395654U CN212724758U CN 212724758 U CN212724758 U CN 212724758U CN 202021395654 U CN202021395654 U CN 202021395654U CN 212724758 U CN212724758 U CN 212724758U
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- cable
- signal transmission
- polyester
- temperature
- transmission cable
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- 230000008054 signal transmission Effects 0.000 title claims abstract description 22
- 238000009413 insulation Methods 0.000 claims abstract description 36
- 229920000728 polyester Polymers 0.000 claims abstract description 32
- 239000004020 conductor Substances 0.000 claims abstract description 13
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 13
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 13
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 13
- 229920000098 polyolefin Polymers 0.000 claims abstract description 5
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 15
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- 239000011888 foil Substances 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 229920002313 fluoropolymer Polymers 0.000 claims description 3
- 238000009941 weaving Methods 0.000 claims description 2
- 239000005030 aluminium foil Substances 0.000 abstract description 6
- 239000011810 insulating material Substances 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 230000006353 environmental stress Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
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- Insulated Conductors (AREA)
- Communication Cables (AREA)
Abstract
The utility model relates to a high temperature resistant signal transmission cable for automobile, including a plurality of cable cores, be provided with one deck polyester band in a plurality of the outside of cable core, one side that the cable core was kept away from in the polyester band parcel has polyester aluminium foil band, one side that polyester aluminium foil band kept away from in the polyester band parcel has the shielding layer, one side that polyester aluminium foil band was kept away from in the shielding layer parcel has the oversheath, the cable core is twisted by a plurality of sinle silks and forms, the sinle silk comprises conductor and insulating layer, the insulating layer includes inlayer insulation and outer insulation, outer insulation high temperature resistance is higher than inlayer insulation; the high-temperature-resistant signal transmission cable for the automobile adopts a double-layer scheme for an insulating material, and the inside of the high-temperature-resistant signal transmission cable adopts crosslinked polyolefin with the temperature resistance level of 125 ℃. The polytetrafluoroethylene with the temperature resistance level of 200 ℃ is adopted outside, so that the long-term use of the wire in the environment of 125 ℃ can be met.
Description
Technical Field
The utility model relates to the technical field of cables, specifically be a high temperature resistant signal transmission cable for car.
Background
Cables are generally rope-like cables made by stranding several or groups of conductors (at least two in each group), each group being insulated from each other and often twisted around a center, the entire outer surface being coated with a highly insulating coating. The cable is installed in air or underground or underwater for telecommunication or power transmission. At present, the cable is widely applied to power transmission, distribution and transmission of various signals, and is suitable for various occasions such as power stations, power grids, industrial and mining enterprises, railway transportation, buildings, subways, telegraph offices and the like.
The cable may encounter the condition of a fire in the process of using, in order to guarantee the safety of surrounding personnel and environment and protect the signal transmission performance of the cable in a continuous high-temperature environment, the cable is required to have better temperature-resistant and fire-resistant performance. At present, polytetrafluoroethylene or crosslinked polyethylene is used as an insulating material on the market, but the price of the polytetrafluoroethylene material is relatively high, and the high temperature resistance degree of the crosslinked polyethylene material is insufficient.
Disclosure of Invention
The utility model aims to solve the technical problem that a high temperature resistant signal transmission cable is provided for car.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme: the utility model provides a high temperature resistant signal transmission cable for car, is including a plurality of cable cores, it is a plurality of the outside of cable core is provided with one deck polyester band one side parcel that the cable core was kept away from in the polyester band has polyester aluminium foil band one side parcel that the polyester band was kept away from in polyester aluminium foil band has the shielding layer one side parcel that the polyester aluminium foil band was kept away from in the shielding layer has the oversheath, the cable core is formed by a plurality of sinle silks transposition, the sinle silk comprises conductor and insulating layer, the insulating layer includes inlayer insulation and outer insulation, outer insulation high temperature resistance is higher than the inlayer insulation.
Further concretely: the inner layer insulation is polyolefin, and the outer layer insulation is fluoroplastic.
Further concretely: the inner layer insulation is cross-linked polyethylene, and the outer layer insulation is polytetrafluoroethylene.
Further concretely: the conductor is a sixth ultra-soft copper conductor stranded in an ultra-fine mode.
Further concretely: the stranding directions of the wire cores are consistent, and the stranding pitch-diameter ratio is 4-15 times.
Further concretely: the shielding layer is formed by weaving tinned copper.
Further concretely: the outer sheath is cross-linked polyethylene.
Further concretely: the number of the cable cores is four.
Compared with the prior art, the utility model discloses an useful part is: the high-temperature-resistant signal transmission cable for the automobile adopts a double-layer scheme for an insulating material, and the inside of the high-temperature-resistant signal transmission cable adopts crosslinked polyolefin with the temperature resistance level of 125 ℃. The polytetrafluoroethylene with the temperature resistance level of 200 ℃ is adopted outside, so that the long-term use of the wire in the environment of 125 ℃ can be met.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
Fig. 1 is the utility model relates to a high temperature resistant signal transmission cable section structure schematic diagram for car.
In the figure: 1. a conductor; 2. the inner layer is insulated; 3. insulating the outer layer; 4. polyester wrapping tape; 5. polyester aluminum foil wrapping tapes; 6. a shielding layer; 7. an outer sheath.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments:
a high-temperature-resistant signal transmission cable for an automobile is shown in figure 1 and comprises a plurality of cable cores, wherein a polyester wrapping belt 4 is arranged outside the cable cores, a polyester aluminum foil wrapping belt 5 wraps one side, away from the cable cores, of the polyester wrapping belt 4, a shielding layer 6 wraps one side, away from the polyester wrapping belt 4, of the polyester aluminum foil wrapping belt 5, an outer sheath 7 wraps one side, away from the polyester aluminum foil wrapping belt 5, of the shielding layer 6, the cable cores are formed by stranding a plurality of wire cores, each wire core is composed of a conductor 1 and an insulating layer, each insulating layer comprises an inner layer insulation layer 2 and an outer layer insulation layer 3, and the high temperature resistance of the outer layer insulation layer 3 is higher than that of the inner layer.
The conductor 1 is a sixth-generation ultra-soft copper conductor, so that the cable has good flexibility and can stably work when being wound; the insulating layer divide into inlayer insulation 2 and outer insulation 3, inlayer insulation 2 adopts the polyolefin material, outer insulation 3 adopts fluoroplastics, in the embodiment of the utility model, inlayer insulation 2 is crosslinked polyethylene, outer insulation 3 is polytetrafluoroethylene, crosslinked polyethylene's high temperature resistant grade is 125 ℃, polytetrafluoroethylene's high temperature resistant grade is 200 ℃, crosslinked polyethylene's high temperature resistant grade is not like polytetrafluoroethylene's high temperature resistant grade, but polytetrafluoroethylene's price is ten times of crosslinked polyethylene's price, use the scheme that inlayer insulation 2 and outer insulation 3 combine, can make the performance satisfy the requirement completely, also can reduce cost simultaneously; if the insulating layer is made of crosslinked polyethylene material, the insulation can be fused together when the insulating layer is used in a high-temperature environment (more than 100 ℃) for a long time. The characteristic impedance and attenuation performance of the wire are unqualified, and the transmission performance is seriously influenced; if the insulating layer is made of polytetrafluoroethylene materials, the production and manufacturing cost of the insulating layer is greatly increased; the scheme that the inner layer insulation 2 is cross-linked polyethylene and the outer layer insulation 3 is polytetrafluoroethylene is an ideal scheme for resisting high temperature and reducing cost; the cable core is formed by the conductor 1 and the insulating layer, and the cable core is formed by twisting the cable cores, in the embodiment of the utility model, four cable cores are arranged and are symmetrical about the center of the cable circle; the binding pitch diameter ratio of the wire core is not more than 20 times, in the embodiment of the utility model, the stranding direction of the wire core is the same, and the stranding pitch diameter ratio is 4-15 times; the four cable cores are an integral body, and a belting layer is arranged outside the integral body; the wrapping tape layer comprises the polyester wrapping tape 4 and the polyester aluminum foil wrapping tape 5, and the polyester wrapping tape 4 and the polyester aluminum foil wrapping tape 5 are arranged, so that the cable is ensured to have good flexibility, strong tensile resistance, good extensibility and difficult fracture; the shielding layer 6 is a tinned copper braided shielding layer, so that the cable is ensured to have good shielding performance, excellent external electromagnetic field anti-interference performance is realized, and meanwhile, the interference to an external electric field is avoided; the outer sheath 7 is made of cross-linked polyethylene, so that the cable is small in outer diameter, light in weight, excellent in mechanical and physical properties and good in environmental stress cracking resistance.
The utility model has the advantages that the insulating layer of the high temperature resistant signal transmission cable for the automobile adopts double-layer insulation, the inner layer insulation 2 adopts the cross-linked polyethylene outer layer insulation 3 and adopts the mode of combining polytetrafluoroethylene, thereby not only ensuring the grade of high temperature resistance, but also reducing the production cost to the utmost extent; the polyester wrapping tape 4 and the polyester aluminum foil wrapping tape 5 ensure that the cable has good flexibility and is not easy to break; the shielding layer 6 is a tinned copper braided shielding layer, so that the cable is ensured to have good shielding performance; the outer sheath 7 is made of cross-linked polyethylene, so that the cable is small in outer diameter, excellent in mechanical and physical properties and good in environmental stress cracking resistance.
It is to be emphasized that: the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form, and any simple modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (8)
1. The utility model provides a high temperature resistant signal transmission cable for car, is including a plurality of cable cores, its characterized in that: the cable comprises a plurality of cable cores and is characterized in that a polyester wrapping belt (4) is arranged outside the cable cores, one side, far away from the cable cores, of the polyester wrapping belt (4) is wrapped with a polyester aluminum foil wrapping belt (5), one side, far away from the polyester wrapping belt (4), of the polyester aluminum foil wrapping belt (5) is wrapped with a shielding layer (6), one side, far away from the polyester aluminum foil wrapping belt (5), of the shielding layer (6) is wrapped with an outer sheath (7), the cable cores are formed by stranding a plurality of wire cores, the wire cores are composed of conductors (1) and insulating layers, the insulating layers comprise inner layer insulation (2) and outer layer insulation (3), and the high temperature resistance of the outer layer insulation (3) is.
2. The high-temperature-resistant signal transmission cable for the automobile according to claim 1, characterized in that: the inner layer insulation (2) is polyolefin, and the outer layer insulation (3) is fluoroplastic.
3. The high-temperature-resistant signal transmission cable for the automobile according to claim 2, characterized in that: the inner layer insulation (2) is cross-linked polyethylene, and the outer layer insulation (3) is polytetrafluoroethylene.
4. The high-temperature-resistant signal transmission cable for the automobile according to claim 1, characterized in that: the conductor (1) is a sixth ultra-soft copper conductor stranded in an ultra-fine mode.
5. The high-temperature-resistant signal transmission cable for the automobile according to claim 1, characterized in that: the stranding directions of the wire cores are consistent, and the stranding pitch-diameter ratio is 4-15 times.
6. The high-temperature-resistant signal transmission cable for the automobile according to claim 1, characterized in that: the shielding layer (6) is formed by weaving tinned copper.
7. The high-temperature-resistant signal transmission cable for the automobile according to claim 1, characterized in that: the outer sheath (7) is cross-linked polyethylene.
8. The high-temperature-resistant signal transmission cable for the automobile according to claim 1, characterized in that: the number of the cable cores is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021395654.6U CN212724758U (en) | 2020-07-15 | 2020-07-15 | High-temperature-resistant signal transmission cable for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021395654.6U CN212724758U (en) | 2020-07-15 | 2020-07-15 | High-temperature-resistant signal transmission cable for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212724758U true CN212724758U (en) | 2021-03-16 |
Family
ID=74906131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021395654.6U Active CN212724758U (en) | 2020-07-15 | 2020-07-15 | High-temperature-resistant signal transmission cable for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212724758U (en) |
-
2020
- 2020-07-15 CN CN202021395654.6U patent/CN212724758U/en active Active
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