CN222421429U - A high-flexibility, tear-resistant carriage jumper with a temperature resistance of 180°C for rail transit - Google Patents
A high-flexibility, tear-resistant carriage jumper with a temperature resistance of 180°C for rail transit Download PDFInfo
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- CN222421429U CN222421429U CN202420757786.0U CN202420757786U CN222421429U CN 222421429 U CN222421429 U CN 222421429U CN 202420757786 U CN202420757786 U CN 202420757786U CN 222421429 U CN222421429 U CN 222421429U
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- resistant
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- jumper
- cable
- tear
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- 239000004020 conductor Substances 0.000 claims abstract description 81
- 238000009413 insulation Methods 0.000 claims abstract description 59
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 40
- 229910052802 copper Inorganic materials 0.000 claims abstract description 40
- 239000010949 copper Substances 0.000 claims abstract description 40
- 239000003063 flame retardant Substances 0.000 claims abstract description 10
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000002955 isolation Methods 0.000 claims abstract description 9
- 239000000779 smoke Substances 0.000 claims abstract description 8
- 229920002379 silicone rubber Polymers 0.000 claims description 8
- 239000004945 silicone rubber Substances 0.000 claims description 2
- 230000004224 protection Effects 0.000 abstract description 12
- 230000032683 aging Effects 0.000 abstract description 8
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000010292 electrical insulation Methods 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 description 12
- 230000002035 prolonged effect Effects 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000035515 penetration Effects 0.000 description 2
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 description 2
- 230000006750 UV protection Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
本实用新型涉及一种轨道交通用耐温180℃高柔性抗撕裂车厢跨接跳线，属于电缆技术领域。技术方案是：若干根镀锡铜导体束绞在一起形成线芯，线芯外依次设置隔离绕包带（3）、内层绝缘（4）、加强网状层（5）和外层绝缘（6）；镀锡铜导体由内导体（1）和外导体（2）组成，内导体（1）外设置外导体（2）；内导体（1）采用裸铜导体绞合而成，外导体（2）采用镀锡导体复绞而成。本实用新型保证电缆低烟无卤阻燃性能；在保证良好电气绝缘性能的基础上，提高了跳线的柔软性和耐低高温性能，提高了耐老化性能；增加了电缆的综合防护性能和耐撕裂性能，同时具有防水、耐腐蚀等综合防护性能，提高了电缆的安全防护，提高了电缆的使用寿命。
The utility model relates to a high-flexibility, tear-resistant carriage jumper for rail transit with a temperature resistance of 180°C, and belongs to the field of cable technology. The technical solution is: a plurality of tinned copper conductor bundles are twisted together to form a wire core, and an isolation wrapping tape (3), an inner insulation layer (4), a reinforced mesh layer (5) and an outer insulation layer (6) are sequentially arranged outside the wire core; the tinned copper conductor is composed of an inner conductor (1) and an outer conductor (2), and an outer conductor (2) is arranged outside the inner conductor (1); the inner conductor (1) is formed by twisting bare copper conductors, and the outer conductor (2) is formed by twisting tinned conductors. The utility model ensures the low-smoke, halogen-free and flame-retardant performance of the cable; on the basis of ensuring good electrical insulation performance, the flexibility and low and high temperature resistance of the jumper are improved, and the aging resistance performance is improved; the comprehensive protection performance and tear resistance performance of the cable are increased, and at the same time, it has comprehensive protection performance such as waterproof and corrosion resistance, thereby improving the safety protection of the cable and the service life of the cable.
Description
Technical Field
The utility model relates to a jumper wire for a high-temperature-resistant 180-DEG C high-flexibility tearing-resistant carriage for track traffic, which is a jumper wire special for a high-power high-temperature-resistant high-flexibility rail-connected traffic carriage and belongs to the technical field of cables.
Background
Rail traffic refers to a vehicle that runs on a specific track, and can be classified into subways, trams, light rails, high-speed rails, and the like. With the continuous development of socioeconomic in recent years, national rail transit has developed across, and the jumper wire needs for carriage bridging have also increased greatly. The jumper wire for the carriage is mainly used for providing power transmission between carriages, and because of the use environment and the special use position, the jumper wire has higher requirements on the flexibility, the tear resistance and the voltage resistance of the cable, and when the common cable is used, the common cable is easy to generate fatigue in the long-term jolt of the vehicle and the twisting process of the carriage, so that the insulation performance level is reduced, the insulation is easy to tear, the service life of the cable is not ensured, and the long-term normal operation of the vehicle is influenced. The jumper cable is typically 50mm 2-240mm2 in nominal cross-section. The long-term working temperature range of the jumper wire is generally 90-120 ℃, and the conductor is a tin-plated copper 6-type soft conductor, and is insulated by crosslinked polyolefin or flame-retardant silicone rubber. The cable has low temperature resistance level, poor flexibility, tensile property and ageing resistance, and low comprehensive mechanical protection performance. Because the vehicle jumper cable is frequently moved and used in a special and severe environment, the quality requirement on the cable is high, and the service life of the cable is often short when the cable is operated under special working conditions such as repeated vibration or front-back left-right twisting.
Disclosure of utility model
The utility model aims to provide a 180 ℃ high-flexibility tearing-resistant carriage jumper wire for track traffic, which is stranded by bare copper and tinned copper wires, adopts modified flame-retardant high-temperature-resistant silicon rubber insulation, and a layer of net-shaped low-smoke halogen-free belt is wrapped in the middle of the flame-retardant high-temperature-resistant silicon rubber insulation, so that the flexibility, the conductivity and the service life of a cable are improved, the comprehensive protection performances of aging resistance, high temperature resistance, tearing resistance and the like are good, and the problems in the background technology are solved.
The technical scheme of the utility model is as follows:
A high-flexibility and tearing-resistant carriage jumper wire resistant to 180 ℃ for track traffic comprises a tin-plated copper conductor, an isolating wrapping belt, an inner insulation layer, a reinforcing mesh layer and an outer insulation layer, wherein a plurality of tin-plated copper conductor bundles are twisted together to form a wire core, the isolating wrapping belt, the inner insulation layer, the reinforcing mesh layer and the outer insulation layer are sequentially arranged outside the wire core, the tin-plated copper conductor consists of an inner conductor and an outer conductor, the outer conductor is arranged outside the inner conductor, the inner conductor is formed by twisting bare copper conductors, and the outer conductor is formed by twisting tin-plated conductors.
The inner layer insulation and the outer layer insulation are both flame-retardant high-temperature-resistant silicon rubber insulation.
The plurality of tin-plated copper conductors are bundled together in a concentric stranding mode, the bundling direction is the left direction, and the bundling pitch is 18-20 times of the bundling diameter.
The inner conductor and the outer conductor are twisted in a concentric twisting mode, the twisting direction is the right direction, and the twisting pitch is 12-14 times of the twisting outer diameter.
The number of the isolation wrapping belts is three, and the wrapping directions are opposite.
The reinforced reticular layer is reticular wrapping tape.
The net-shaped wrapping belt adopts a net-shaped low-smoke halogen-free belt.
The beneficial effects of the utility model are as follows:
1. The bare copper and the tinned copper wires are stranded to form the tinned copper conductor, so that the flexibility of the cable is improved, the conductivity is improved, the broken wires of the cable conductor are reduced, and the service life of the cable is prolonged;
2. The three layers of the outer wrapping tape of the tinned copper conductor are isolated, so that the penetration into gaps of the tinned copper conductor during insulation extrusion is avoided, and the low-smoke halogen-free flame retardant performance of the cable is ensured;
3. The inner insulation layer improves the flexibility and low-temperature resistance of the jumper wire and the ageing resistance on the basis of ensuring good electrical insulation performance, the inner insulation layer is wrapped with a special reinforcing reticular layer, the outer insulation layer is extruded out of the reinforcing reticular layer, the inner insulation layer and the outer insulation layer are firmly bonded with the reticular wrapping tape, the insulation layer is not layered, the comprehensive protection performance and the tearing resistance of the cable are improved, meanwhile, the cable has the comprehensive protection performance such as water resistance and corrosion resistance, the safety protection of the cable is improved, and the service life of the cable is prolonged.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
In the figure, an inner conductor 1, an outer conductor 2, an isolation wrapping tape 3, an inner layer insulation 4, a reinforcing mesh layer 5 and an outer layer insulation 6.
Detailed Description
The utility model will be further illustrated by way of example with reference to the accompanying drawings.
A high-flexibility tearing-resistant carriage jumper wire resistant to 180 ℃ for rail transit comprises a tinned copper conductor, an isolation wrapping tape 3, an inner layer insulation 4, a reinforcing mesh layer 5 and an outer layer insulation 6, wherein a plurality of tinned copper conductor bundles are twisted together to form a wire core, the isolation wrapping tape 3, the inner layer insulation 4, the reinforcing mesh layer 5 and the outer layer insulation 6 are sequentially arranged outside the wire core, the tinned copper conductor consists of an inner conductor 1 and an outer conductor 2, the outer conductor 2 is arranged outside the inner conductor 1, the inner conductor 1 is formed by twisting bare copper conductors, and the outer conductor 2 is formed by twisting tinned conductors.
The inner layer insulation 4 and the outer layer insulation 6 are both flame-retardant and high-temperature-resistant silicon rubber insulation.
The plurality of tin-plated copper conductors are bundled together in a concentric stranding mode, the bundling direction is the left direction, and the bundling pitch is 18-20 times of the bundling diameter.
The inner conductor 1 and the outer conductor 2 are twisted in a concentric twisting mode, the twisting direction is the right direction, and the twisting pitch is 12-14 times of the twisting outer diameter.
The number of the isolation wrapping belts 3 is three, and the wrapping directions are opposite.
The reinforcing reticular layer is a reticular wrapping belt, and the reticular wrapping belt adopts a reticular low-smoke halogen-free belt.
The tin-plated copper conductor resistor is a 6-class tin-plated soft copper conductor which accords with the GB/T3956 standard, and is formed by adopting a 0.2mm monofilament body to be bundled and twisted, wherein the monofilament outer diameter is thinner than that of the GB/T3956 standard by 0.3 mm. The specific process comprises the steps of firstly binding a plurality of tin-plated copper conductors together in a concentric twisting mode, wherein the binding direction is the left direction, the binding pitch is 18-20 times of the binding diameter, then carrying out double twisting in a concentric twisting mode in a 1+6+ (12+18) normal twisting mode, the double twisting direction is the right direction, and the double twisting pitch is 12-14 times of the double twisting outer diameter. The 1+6 layers are formed by twisting bare copper conductors, the monofilaments are kept the same as the outer layers, the 12+18 layers are formed by twisting tinned conductors, the cost of the bare copper conductors is reduced compared with that of the tinned conductors, the conductor resistance is correspondingly reduced, and the conductive performance of the cable is enhanced. Compared with the traditional 6-type flexible conductor, the copper conductor monofilament has smaller diameter, small twisting pitch, soft cable conductor and no broken wire, and the service life of the cable is prolonged.
The three layers of the outer wrapping layers of the tinned copper conductor are isolated and wrapped by the wrapping tape 3, the wrapping directions are opposite, the surface of the tinned copper conductor is guaranteed to be round, the insulation extrusion thickness is uniform and consistent, and the situation that the insulation is extruded to penetrate into gaps of the tinned copper conductor is avoided.
The isolation wrapping tape 3 is externally extruded with a layer of flame-retardant high-temperature-resistant silicon rubber insulation (inner insulation), so that the flexibility and the low-high-temperature-resistant performance of the jumper wire are improved and the ageing-resistant performance is improved on the basis of ensuring good electrical insulation performance.
The surface of the inner insulation layer 4 is wrapped with a layer of special net-shaped wrapping tape, and when the outer insulation layer 6 is extruded, the inner insulation layer and the outer insulation layer are firmly bonded with the net-shaped wrapping tape, the insulation layers are not layered, and the comprehensive protection performance and the tearing resistance performance of the cable are improved.
The outer insulation 6 has good mechanical properties and comprehensive protective properties. The bridge jumper wire is provided with a reinforcing layer for protection, so that the bridge jumper wire for the carriage is suitable for various severe environments, the reinforced insulating layer has excellent characteristics of high tension, toughness and aging resistance, has the characteristics of high flexibility, wear resistance, cold resistance, oil resistance, water resistance, aging resistance, weather resistance and the like which are incomparable with other materials, and has a plurality of excellent functions of high water resistance, ultraviolet resistance and the like. Compared with the common jumper wire, the temperature resistance level of the cable is increased, the insulation protection is enhanced, the safety protection of the cable is improved, and the service life of the cable is prolonged.
The utility model comprises a tin-plated copper conductor, three layers of isolation wrapping belts 3, an inner layer of insulation 4, a reinforcing reticular layer 5 and an outer layer of insulation 6 from inside to outside. The center of the tin-plated copper conductor is formed by a process of firstly binding and then twisting tin-plated 6 copper conductors, the inner layer is formed by twisting bare copper conductors, the outer layer is formed by twisting tin-plated conductors in a multi-twisting mode, the electric conductivity of the cable is improved, the flexibility of the cable is also improved, broken wires possibly generated when the cable conductors are applied are reduced, the service life of the cable is prolonged, the three layers of wire core wrapping are isolated by wrapping tape 3, penetration into gaps of the tin-plated copper conductors during insulation extrusion is avoided, the surface is round, the insulation extrusion thickness is guaranteed to be uniform and consistent, the low-smoke halogen-free flame retardant performance and other mechanical properties of the cable can be guaranteed, the flexibility of the cable is improved by inner layer insulation 4, the broken wires of the cable are reduced, the high-temperature resistance performance is improved, the flexibility of the cable is improved by reinforcing mesh layer 5, the anti-tearing performance of the insulation is improved, the whole insulation performance is improved, extremely low smoke is generated when the mesh wrapping tape burns, the light transmittance of the cable is enhanced by burning test, the outer layer is extruded by reinforcing mesh layer insulation 6, the inner layer insulation 4 and the outer layer insulation 6 are both made of flame-retardant high-temperature resistant silicon rubber insulation of a Wake company, the double-layer insulation and the mesh wrapping tape of the middle wrapping tape are tightly bonded together, so that the comprehensive cable is formed, and has better wear resistance, low-temperature resistance, low-resistance performance, waterproof performance, high safety performance, and corrosion resistance performance and safety performance are improved.
The utility model is suitable for the severe environment between the carriages of the vehicle, improves the temperature resistance level of the cable, can improve the current-carrying capacity of the cable, improves the ageing resistance of the cable and prolongs the service life of the cable. The method is an important electrical safety technical measure, is an effective measure for ensuring the normal operation of a key electrical system, and greatly prolongs the service life of the cable and the service life of a vehicle.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420757786.0U CN222421429U (en) | 2024-04-12 | 2024-04-12 | A high-flexibility, tear-resistant carriage jumper with a temperature resistance of 180°C for rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420757786.0U CN222421429U (en) | 2024-04-12 | 2024-04-12 | A high-flexibility, tear-resistant carriage jumper with a temperature resistance of 180°C for rail transit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222421429U true CN222421429U (en) | 2025-01-28 |
Family
ID=94348004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420757786.0U Active CN222421429U (en) | 2024-04-12 | 2024-04-12 | A high-flexibility, tear-resistant carriage jumper with a temperature resistance of 180°C for rail transit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222421429U (en) |
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2024
- 2024-04-12 CN CN202420757786.0U patent/CN222421429U/en active Active
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