CN204390782U - A kind of double layer screen insulated cable - Google Patents
A kind of double layer screen insulated cable Download PDFInfo
- Publication number
- CN204390782U CN204390782U CN201520026286.0U CN201520026286U CN204390782U CN 204390782 U CN204390782 U CN 204390782U CN 201520026286 U CN201520026286 U CN 201520026286U CN 204390782 U CN204390782 U CN 204390782U
- Authority
- CN
- China
- Prior art keywords
- screen
- layer
- cable
- cable body
- insulating barrier
- 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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Abstract
The utility model discloses a kind of double layer screen insulated cable, it comprises cable body, and described cable body comprises conductor, insulating barrier, the first screen and oversheath.Described cable body cross section is circular configuration; Described cable body is provided with many conductors; Described conductor closely extrudes a layer insulating outward; One deck first screen is extruded outside described insulating barrier; Described conductor, insulating barrier and the first screen form cable core jointly; Described cable body inside is provided with three cable cores; Secondary shielding layer is extruded outside described first screen; Between described first screen and secondary shielding layer, gap portion is provided with packed layer; Described secondary shielding layer is disposed with plastic-aluminum combined belt and metal sheath layer from inside to outside; One deck oversheath is extruded outside described metal sheath layer.The utility model cable has the advantages such as the good and long service life of reasonable in design, shield effectiveness.
Description
Technical field
The utility model relates to field of cables, particularly relates to a kind of double layer screen insulated cable.
Background technology
At present, along with the development of science and technology, the fields such as industry are also at rapid advances, what bring is the increase of cable consumption thereupon, cable normally has several or several groups of wires often to organize the cable of at least two stranded similar ropes, often organize mutually insulated between wire, and be often twisted into around a center, whole outside is surrounded by the cover layer of high-insulation, the kind of cable has a lot, the environment for use that can be applied in fields different in a lot of field is different, therefore different requirements is also had to cable, but the effect that existing cable can not play shielding because its structural design is unreasonable, outer signals is easy to cause interference to it, make it that situation of information dropout occur.
Utility model content
In order to overcome the defect of above-mentioned prior art, the purpose of this utility model is to provide a kind of double layer screen insulated cable.
The utility model is taked following technical scheme to realize: a kind of double layer screen insulated cable, and it comprises cable body, and described cable body comprises conductor, insulating barrier, the first screen and oversheath, and described cable body cross section is circular configuration; Described cable body is provided with many conductors; Described conductor closely extrudes a layer insulating outward; One deck first screen is extruded outside described insulating barrier; Described conductor, insulating barrier and the first screen form cable core jointly; Described cable body inside is provided with three cable cores; Secondary shielding layer is extruded outside described first screen; Between described first screen and secondary shielding layer, gap portion is provided with packed layer; Described secondary shielding layer is disposed with aluminium-plastic tape layer by layer and metal sheath layer from inside to outside; One deck oversheath is extruded outside described metal sheath layer.
Above-mentioned a kind of double layer screen insulated cable, described conductor adopts real core copper core or multiply to press copper core and makes, and its cross sectional shape is circular or sector structure.
Above-mentioned a kind of double layer screen insulated cable, the packed layer that between described first screen and secondary shielding layer, gap portion is arranged is steel strand wire.
Above-mentioned a kind of double layer screen insulated cable, described insulating barrier is that Ceramic silicon rubber material is made.
Above-mentioned a kind of double layer screen insulated cable, described aluminium-plastic tape is Double-layer aluminum plastic composite strip Rotating fields layer by layer.
Above-mentioned a kind of double layer screen insulated cable, described oversheath adopts butyronitrile material to form.
The utility model has following beneficial effect in sum: a kind of double layer screen of the utility model insulated cable has the advantages such as reasonable in design, high temperature resistant and long service life, and described conductor adopts real core copper core or multiply to press copper core makes, not only substantially increase the operating efficiency of cable, also make its work more stable, and described conductor structure is easy to processing, making length is unrestricted, has certain flexibility and bendability during use, facilitates the laying of workpeople.
Accompanying drawing explanation
Fig. 1 is the utility model cross-sectional structure schematic diagram;
Wherein: 1, cable body; 2, conductor; 3, insulating barrier; 4, the first screen; 5, packed layer; 6, secondary shielding layer; 7, plastic-aluminum combined belt; 8, metal sheath layer; 9, oversheath.
Embodiment
As shown in Figure 1, a kind of double layer screen insulated cable, it comprises cable body 1, and described cable body 1 comprises conductor 2, insulating barrier 3, first screen and oversheath 9, and described cable body 1 cross section is circular configuration; Described cable body 1 is provided with many conductors 2; Described conductor 2 is outer closely extrudes a layer insulating 3; One deck first screen 4 is extruded outside described insulating barrier 3; Described conductor 2, insulating barrier 3 and the first screen 4 form cable core jointly; Described cable body 1 inside is provided with three cable cores; Secondary shielding layer 6 is extruded outside described first screen 4; Between described first screen 4 and secondary shielding layer 6, gap portion is provided with packed layer 5; Described secondary shielding layer 6 is disposed with aluminium-plastic tape layer by layer 7 and metal sheath layer 8 from inside to outside; One deck oversheath 9 is extruded outside described metal sheath layer 8.
The conductor 2 arranged in described cable body 1 adopts real core copper core or multiply to press copper core and makes, not only substantially increase the operating efficiency of cable, also make its work more stable, and described conductor 2 structure is easy to processing, making length is unrestricted, there is during use certain flexibility and bendability, facilitate the laying of workpeople; Described insulating barrier 3 is made for Ceramic silicon rubber material, thus greatly can improve the insulation property of cable body 1, makes its work more stable, the conductor 2 of effective protection; The packed layer 5 arranged between described first screen 4 and secondary shielding layer 6 adopts steel strand wire to make, and effectively can prevent moisture in air from entering conductor 2 inner, make it make moist, thus occur the situation of short circuit, substantially increases the stability that cable uses; The effect of electromagnetic shielding had both been played in described first screen 4 and the common cooperation of secondary shielding layer 6, and serve again radial moistureproof effect, especially in transmission signal process, can effectively prevent outer signals from disturbing it, shield effectiveness be obvious; Described aluminium-plastic tape 7 is bilateral structure layer by layer, there is certain elasticity, when cable bends by external force, ensure that cable has bending and indeformable performance to a certain extent, cable can use under the environment of alternating bending, improves the environmental suitability of cable; Described metal sheath layer 8 improves the sealing property of cable body 1, is that cable has certain heat-resisting ability; Described oversheath 9 adopts butyronitrile material to form, thus there is fire-retardant fireproof characteristic, during fire, cable is nonflammable, and can stop burning after flame spread the expansion with disaster, the smog produced during cable fire is also very thin, is conducive to the evacuation of personnel and the carrying out of fire-fighting work.
The above is the utility model embodiment, therefore all equivalences done according to structure, feature and the principle described in the utility model application range change or modify, and are included in the utility model patent claim.
Claims (6)
1. a double layer screen insulated cable, it comprises cable body, and described cable body comprises conductor, insulating barrier, the first screen and oversheath, it is characterized in that: described cable body cross section is circular configuration; Described cable body is provided with many conductors; Described conductor closely extrudes a layer insulating outward; One deck first screen is extruded outside described insulating barrier; Described conductor, insulating barrier and the first screen form cable core jointly; Described cable body inside is provided with three cable cores; Secondary shielding layer is extruded outside described first screen; Between described first screen and secondary shielding layer, gap portion is provided with packed layer; Described secondary shielding layer is disposed with plastic-aluminum combined belt and metal sheath layer from inside to outside; One deck oversheath is extruded outside described metal sheath layer.
2. a kind of double layer screen insulated cable according to claim 1, is characterized in that: described conductor adopts real core copper core or multiply to press copper core and makes, and its cross sectional shape is circular or sector structure.
3. a kind of double layer screen insulated cable according to claim 1, is characterized in that: the packed layer that between described first screen and secondary shielding layer, gap portion is arranged is steel strand wire.
4. a kind of double layer screen insulated cable according to claim 1, is characterized in that: described insulating barrier is that Ceramic silicon rubber material is made.
5. a kind of double layer screen insulated cable according to claim 1, is characterized in that: described plastic-aluminum combined belt is Double-layer aluminum plastic composite strip structure.
6. a kind of double layer screen insulated cable according to claim 1, is characterized in that: described oversheath adopts butyronitrile material to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520026286.0U CN204390782U (en) | 2015-01-14 | 2015-01-14 | A kind of double layer screen insulated cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520026286.0U CN204390782U (en) | 2015-01-14 | 2015-01-14 | A kind of double layer screen insulated cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204390782U true CN204390782U (en) | 2015-06-10 |
Family
ID=53363480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520026286.0U Expired - Fee Related CN204390782U (en) | 2015-01-14 | 2015-01-14 | A kind of double layer screen insulated cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204390782U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107393640A (en) * | 2017-08-21 | 2017-11-24 | 贵州固达电缆有限公司 | A kind of tension plane spring line |
-
2015
- 2015-01-14 CN CN201520026286.0U patent/CN204390782U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107393640A (en) * | 2017-08-21 | 2017-11-24 | 贵州固达电缆有限公司 | A kind of tension plane spring line |
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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 |
Granted publication date: 20150610 Termination date: 20170114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |