CN203288307U - Through ground wire - Google Patents
Through ground wire Download PDFInfo
- Publication number
- CN203288307U CN203288307U CN2013201619895U CN201320161989U CN203288307U CN 203288307 U CN203288307 U CN 203288307U CN 2013201619895 U CN2013201619895 U CN 2013201619895U CN 201320161989 U CN201320161989 U CN 201320161989U CN 203288307 U CN203288307 U CN 203288307U
- Authority
- CN
- China
- Prior art keywords
- metal
- ground wire
- layer
- cable core
- composite bed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
- H01B3/12—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances ceramics
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Insulated Conductors (AREA)
Abstract
The utility model discloses a through ground wire comprising a wire core constituted by a plurality of metal lines. An outer side of the wire core is wrapped by an internal protection layer, an outer surface of which is wrapped by a transition layer. An outer surface of the transition layer is wrapped by an external protection layer. Preferably, the internal protection layer is a metal aluminum alloy layer, and the transition layer is a metal-non-metal composite layer, and the external protection layer is a ceramic layer or a ceramic-metal composite layer. The through ground wire is characterized in that the outer side of the wire core is provided with the three-layer protection layer, which is constituted by the internal protection layer, the transition layer, and the external protection layer, and can be used for protecting the wire core. The through ground wire has advantages of excellent anti-corrosion performance, anti-oxidation performance, and high temperature-resistant performance; high strength, environmental protection, and low costs.
Description
Technical field
The utility model belongs to technical field of electric wires and cables, relates in particular to a kind of railway signal earth cable.
Background technology
High speed development along with railway, railway signal is had higher requirement, signal, towards modernization, digitized future development, has proposed requirements at the higher level for signal system Earthing Reliability and environment friendly, in the urgent need to novel high temperature resistant environment-protective Through ground wire cable.
Through ground wire commonly used is to be twisted into cable core by many copper conductor cores by certain stranded mode at present, then at its cable core outer wrapping one deck conductive plastics, metal or alloy restrictive coating.Conductive plastics generally adds carbon black in high molecular polymer realizes conducting electricity, and they all exist macromolecular material generally to be difficult to the deficiency that overcomes: inflammable, ageing properties is poor, intensity difference etc.And lead sheath commonly used does not meet environmental requirement, and the aluminum alloy sheath life-span that replaces is still inadequate, and other exists from the deficiency such as great, on the high side such as iron, nickel alloy.
The utility model content
Technical problem to be solved in the utility model be to provide a kind of corrosion-resistant, high temperature resistant, anti-oxidant, intensity is good and cost is low and the Through ground wire of environmental protection.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of Through ground wire, comprise the cable core that is formed by many wires, and described cable core outside is coated with interior overcoat, described interior overcoat outer surface is coated with transition zone, and described transition zone outer surface is coated with external protection coating.
As the improvement of a kind of Through ground wire technical scheme of the utility model, described external protection coating is ceramic layer.
Another kind as a kind of Through ground wire technical scheme of the utility model improves, and described external protection coating is the ceramic-metal composite bed.
As improvement of the technical scheme, in described ceramic-metal composite bed, metal is zinc or magnesium or indium.
As improvement of the technical scheme, described interior overcoat is metallic aluminium or aluminium alloy protecting jacket layer.
As improvement of the technical scheme, described transition zone is metal-nonmetal composite bed.
As improvement of the technical scheme, in described metal-nonmetal composite bed, metal is nickel or copper or tungsten or aluminium or chromium or its combination, and nonmetal is phosphorus, boron or metal phosphate.
Another improvement as a kind of Through ground wire technical scheme of the utility model, described interior overcoat is metallic aluminium or aluminium alloy protecting jacket layer, described transition zone is the zinc metal level, described external protection coating is metal-nonmetal composite bed, wherein, metal is nickel or copper or tungsten or aluminium or chromium or its combination, and nonmetal is phosphorus, boron or metal phosphate.
As improvement of the technical scheme, described cable core is comprised of many wires, and parallel being set up in parallel of described metal wire forms described cable core, and be perhaps stranded in integrally formed described cable core.
As improvement of the technical scheme, described metal wire is copper conductor.
Implement the technical solution of the utility model, can obtain following beneficial effect:
The cable core outside is provided with the three-layer protection layer, and interior overcoat, transition zone and external protection coating can be given full play to the protective effect to cable core; Through ground wire of the present utility model; have excellent corrosion-resistant, anti-oxidant, resistance to elevated temperatures, have high strength, environmental protection and cost are lower.
Description of drawings
Fig. 1 is the structural representation of a kind of Through ground wire embodiment of the utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
See Fig. 1, a kind of Through ground wire embodiment of the utility model comprises the cable core 1 that is comprised of many wires, and cable core 1 outside is coated with interior overcoat 2, and interior overcoat 2 outer surfaces are coated with transition zone 3, and transition zone 3 outer surfaces are coated with external protection coating 4.
The general copper conductor that adopts of cable core 1, certainly do not get rid of and use other conducting metal cables, adopts other metal cables,, as long as it has adopted as structure of the present utility model, should fall into protection range of the present utility model yet.Usually parallel or stranded in the integrally formed cable core 1 that is positioned at center by seven wires, can certainly be the metal wire of other numbers.
Preferably, interior overcoat 2 is metallic aluminium or aluminium alloy protecting jacket layer, certainly,, except metallic aluminium and alloy thereof, also can select as other environment protection metals or alloys such as tin, magnesium, nickel, also can avoid environment when to cable core, providing protection.But tin and nickel on the high side, replace aluminium unlikely fully, and magnesium intensity is too little, but it all can be used as alloying component.
Preferably, the transition zone 3 that is coated on interior overcoat 2 is metal-nonmetal composite bed, in this layer, metal is that the one or more combination in nickel, copper, tungsten, aluminium, chromium is used, nonmetal can be phosphorus (P), boron (B) or metal phosphate, this layer has the advantages such as corrosion-resistant, anti-oxidant, high temperature resistant, that mechanical performance is adjustable, conduct electricity very well, and can bring into play the buffering transitional function between aluminium sheath layer and ceramic layer, is conducive to simultaneously adhering to of rear step ceramic layer.This metal-nonmetal composite bed adopts chemical plating process to be plated on interior overcoat 2 outer surfaces.
Preferably, the external protection coating 4 that is coated on transition zone 3 outer surfaces is ceramic layer, and wherein, pottery is preferably the conductor oxidates such as doped tin oxide, zinc oxide, indium oxide, cuprous oxide, bismuth oxide, can certainly be other composition potteries.This layer has excellent corrosion-resistant, anti-oxidant, resistance to elevated temperatures.This ceramic layer can adopt physical vapor method or chemical gas-phase method that it is coated on transition zone 3 outer surfaces.
In the another kind of embodiment of a kind of Through ground wire of the utility model, the difference of itself and above-mentioned the first embodiment only is the improvement to external protection coating 4, for external protection coating 4,, for improving the thermophysical property of ceramic layer pottery, thereby can add as required the metals such as zinc, magnesium, indium in ceramic layer, form the ceramic-metal composite bed.This ceramic layer or ceramic-metal composite bed adopt the supersonic spray coating technology that it is coated on transition zone 3 outer surfaces.
In another embodiment of a kind of Through ground wire of the utility model, interior overcoat 2 is still metallic aluminium alloy protective jacket layer, transition zone 3 is the zinc metal level that forms in metallic aluminium alloy protective jacket layer outer surface chemical plating, the transition zone 3 that consists of the zinc metal level when for cable core 1, providing further protection, also is conducive to adhering to of external protection coating 4.4 of external protection coatings are plated on the metal of zinc metal level outer surface-nonmetal composite bed for chemistry, wherein, metal is nickel, copper, tungsten, aluminium, one or more combination in chromium is used, nonmetal can be phosphorus (P), boron (B) or metal phosphate, itself and the first embodiment, the difference of the second embodiment is, do not adopt ceramic layer or ceramic-metal composite bed as external protection coating, this embodiment still has corrosion-resistant, anti-oxidant, high temperature resistant, mechanical performance is adjustable, the advantage such as conduct electricity very well, its corrosion resistance and intensity can be a little less than first, the second embodiment, but cost is corresponding also lower than first, the second embodiment.
Implement the technical solution of the utility model, the cable core outside is provided with the three-layer protection layer, and interior overcoat, transition zone and external protection coating can be given full play to the protective effect to cable core.Use aluminum metal or aluminium alloy as interior overcoat, can provide good protective effect to cable core, and environmental protection; At interior overcoat outer cladding metal-nonmetal overcoat, have outside the advantage such as corrosion-resistant, anti-oxidant, high temperature resistant, that mechanical performance is adjustable, conduct electricity very well, can bring into play the buffering transitional function between interior overcoat and external protection coating, after being conducive to simultaneously, a step ceramic layer adheres to.At transition zone outer cladding external protection coating, especially adopt ceramic layer or add metal in pottery and form the ceramic-metal composite bed, greatly improved the corrosion resistance of Through ground wire, make Through ground wire of the present utility model have excellent corrosion-resistant, anti-oxidant, resistance to elevated temperatures, have high strength.The technical solution of the utility model, do not need to use the precious metal from great, that price is high, thereby provide cost savings yet.
Above disclosed is only preferred embodiment of the present utility model, certainly can not limit with this interest field of the utility model, and the equivalent variations of therefore according to the utility model claim, doing, still belong to the scope that the utility model is contained.
Claims (10)
1. Through ground wire, it is characterized in that: comprise the cable core that is comprised of many wires, described cable core outside is coated with interior overcoat, and described interior overcoat outer surface is coated with transition zone, and described transition zone outer surface is coated with external protection coating.
2. Through ground wire as claimed in claim 1, it is characterized in that: described external protection coating is ceramic layer.
3. Through ground wire as claimed in claim 1, it is characterized in that: described external protection coating is the ceramic-metal composite bed.
4. Through ground wire as claimed in claim 3, it is characterized in that: in described ceramic-metal composite bed, metal is zinc or magnesium or indium.
5. Through ground wire as described in claim 1 to 4 any one, it is characterized in that: described interior overcoat is metallic aluminium or aluminium alloy protecting jacket layer.
6. Through ground wire as described in claim 1 to 4 any one, it is characterized in that: described transition zone is metal-nonmetal composite bed.
7. Through ground wire as claimed in claim 6, it is characterized in that: in described metal-nonmetal composite bed, metal is nickel or copper or tungsten or aluminium or chromium, and nonmetal is phosphorus, boron or metal phosphate.
8. Through ground wire as claimed in claim 1, it is characterized in that: described interior overcoat is metallic aluminium or aluminium alloy protecting jacket layer, described transition zone is the zinc metal level, described external protection coating is metal-nonmetal composite bed, wherein, metal in metal-nonmetal composite bed is nickel or copper or tungsten or aluminium or chromium, and nonmetal is phosphorus, boron or metal phosphate.
9. as claim 1 to 4 any one or 8 described Through ground wires, it is characterized in that: described cable core is comprised of many wires, and parallel being set up in parallel of described metal wire forms described cable core, and be perhaps stranded in integrally formed described cable core.
10. Through ground wire as claimed in claim 9, it is characterized in that: described metal wire is copper conductor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201619895U CN203288307U (en) | 2013-04-03 | 2013-04-03 | Through ground wire |
| PCT/CN2013/073774 WO2014161202A1 (en) | 2013-04-03 | 2013-04-07 | Through ground cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201619895U CN203288307U (en) | 2013-04-03 | 2013-04-03 | Through ground wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203288307U true CN203288307U (en) | 2013-11-13 |
Family
ID=49544660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201619895U Expired - Fee Related CN203288307U (en) | 2013-04-03 | 2013-04-03 | Through ground wire |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203288307U (en) |
| WO (1) | WO2014161202A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106158119A (en) * | 2016-07-14 | 2016-11-23 | 东莞市成天泰电线电缆有限公司 | A kind of high-temperature phase-change pottery cable |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895229A (en) * | 2016-07-04 | 2016-08-24 | 苏州宝兴电线电缆有限公司 | Large-cross-section copper-clad aluminum EV vehicle-mounted high-voltage cable |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2862270Y (en) * | 2005-10-13 | 2007-01-24 | 西安西电光电缆有限责任公司 | Environment protective through earth wire |
| FR2897194B1 (en) * | 2006-02-03 | 2009-04-17 | Nexans Sa | ELECTRIC CABLE PROTECTED AGAINST CORROSION |
| CN201004351Y (en) * | 2007-01-14 | 2008-01-09 | 吴江市光电通信线缆总厂 | Railway signal soft cable |
| CN201068154Y (en) * | 2007-08-06 | 2008-06-04 | 中利科技集团股份有限公司 | Environmental protection through ground wire with modified structure |
| CN201153051Y (en) * | 2008-01-10 | 2008-11-19 | 江苏东强股份有限公司 | Environment friendly through ground wire for railway |
| CN201984866U (en) * | 2011-04-08 | 2011-09-21 | 宝胜科技创新股份有限公司 | Flexible cable for medium voltage reel |
-
2013
- 2013-04-03 CN CN2013201619895U patent/CN203288307U/en not_active Expired - Fee Related
- 2013-04-07 WO PCT/CN2013/073774 patent/WO2014161202A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106158119A (en) * | 2016-07-14 | 2016-11-23 | 东莞市成天泰电线电缆有限公司 | A kind of high-temperature phase-change pottery cable |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014161202A1 (en) | 2014-10-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20160403 |