CN203351248U - Flexible light-duty cable insulated by PTFE and PI composite - Google Patents
Flexible light-duty cable insulated by PTFE and PI composite Download PDFInfo
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- CN203351248U CN203351248U CN2013203333040U CN201320333304U CN203351248U CN 203351248 U CN203351248 U CN 203351248U CN 2013203333040 U CN2013203333040 U CN 2013203333040U CN 201320333304 U CN201320333304 U CN 201320333304U CN 203351248 U CN203351248 U CN 203351248U
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Abstract
The utility model relates to a flexible light-duty cable insulated by PTFE and PI composite, and the flexible light-duty cable is suitable for signal transmission among various apparatuses and instruments of an aeronautic and astronautic control system. The flexible light-duty cable comprises an insulating core wire formed by sequentially winding and coating an inner insulating layer and an outer insulating layer over a conductor, and a shielding layer is winded and coated over one insulating core wire or a bunch of wires twisted by a plurality of insulating core wires. The flexible light-duty cable is characterized in that flexibility is good, the conductor is twisted by a plurality of silver-plated copper filaments with the diameter of 0.08 mm, a winded and coated structure is adopted by the insulating layer and the shielding layer, to enable the cable to have good flexibility; the weight is light, the winded and coated structure is adopted by the insulating layer and the shielding layer, and particularly, the shielding layer is winded and coated by a hot melting polyester-aluminum composite film, the weight of the cable is reduced by more than 70 % compared with that of a cable which has the same specification and a silver-plated copper wire braided shield; and irradiation resistance and wear resistance are achieved, the insulating layer has a double insulating structure which is winded and coated by a PTFE film and a PI composite film, wear resistance of products are raised, and the cable is winded and coated by the PI composite film to enable the cable to have the characteristic of irradiation resistance.
Description
Technical field
The utility model field of cables, particularly a kind of PTFE and PI composite insulated flexible lightweight cable, be applicable to the signal transmission between each instrument and meter of Aero-Space control system.
Background technology
At present the wrapped type insulated wire cable of China all adopts polytetrafluoroethylene film insulation and silver-coated copper wire braid shielded, because the polytetrafluoroethylene film resistance to wear is poor and be subject to radiation, easily decomposes, be only applicable to fixedly to lay and the environment in radiationless source in; Silver-coated copper wire braid shielded structure causes the weight of aerospace flight vehicle to increase.In the particular surroundings of space flight and aviation control system, require electric wire thering is resistant to elevated temperatures also should have more soft, lightweight, resistance to wear, anti-irradiation simultaneously.
Summary of the invention
In view of deficiency and demand for development that prior art exists, the utility model provides a kind of PTFE and PI composite insulated flexible lightweight cable that adopts new construction, new material, the characteristics such as that cable has is more soft, lightweight, resistance to wear, anti-irradiation.
The utility model for achieving the above object, the technical scheme adopted is: a kind of PTFE and PI composite insulated flexible lightweight cable, it is characterized in that: the insulation core wire that is included in the outer wrapped one deck inner insulating layer successively of conductor, one deck external insulation layer formation, wrapped one deck screen or the stranded bunchy of several described insulation core wires outside a described insulation core wire, wrapped one deck screen outside it.
Characteristics of the present utility model are:
(1) more soft: conductor consists of many 0.08mm silver-plated copper filament tow strands, and insulating barrier and screen adopt lapping structure, make cable have good flexibility.
(2) lightweight: insulating barrier and screen adopt lapping structure, particularly screen to adopt wrapped the forming of hot-melt polyester aluminium laminated film, than the product weight of the silver-coated copper wire braid shielded of same size, alleviate more than 70%.
(3) anti-irradiation, resistance to wear: insulating barrier adopts the PTFE(polytetrafluoroethylene) Transposed wind and PI(polyimides) the wrapped two-layer insulation of laminated film, having increased the resistance to wear of product, simultaneously the PI(polyimides) the laminated film lapped insulation guaranteed that cable has Radiation resistance characteristic.
The accompanying drawing explanation
Fig. 1 is the structural representation that the utility model adopts several insulation core wires;
Fig. 2 is the structural representation that the utility model adopts single insulation core wire.
Embodiment
As shown in Figure 1 and Figure 2, PTFE and PI composite insulated flexible lightweight cable are included in the insulation core wire 1 that conductor 1-1 outer wrapped one deck inner insulating layer 1-2, one deck external insulation layer 1-3 successively form, one thoroughly does away with edge heart yearn 1 outer wrapped one deck screen 2 or the stranded bunchy of several insulation core wire 1, wrapped one deck screen 2 outside it.
Several insulation core wires 1 are 19.
Conductor 1-1 is that many 0.08mm silver-plated copper filament tow strands form.
Inner insulating layer 1-2 is the PTFE thin-film material.
External insulation layer 1-3 is the PI composite film material.
Its manufacture method comprises the following steps:
1, the processing of conductor: use the silver-plated copper monofilament that the electric wire bunching machine is 0.08mm using 7～105 diameters to twist together as conductor 1-1, adopt the stranded form of multiply silver-plated copper monofilament to increase its flexibility.By at bunching machine actinobacillus device place, increasing the oscillating rod type tension regulator, regulate the laying tension of each root silver-plated copper monofilament, avoid silver-plated copper monofilament broken string or the inhomogeneous phenomenon of tension force thereby reach in the bunch process.
2, the processing of insulation: use the electric wire lapping equipment by the wrapped formation insulated wire 1 of external insulation layer 1-3 of the inner insulating layer 1-2 of one deck PTFE film and one deck PI laminated film, guaranteed the characteristics such as the outside diameter of cable is little, radiation hardness.By at the taping head place, increasing the adjusting holddown spring, reduce the tension force of winding machine traction, reduce the mechanical damage to PTFE film, PI laminated film thereby reach in wrapped process.
3, screen processing: use the electric wire lapping equipment by the wrapped formation screen 2 of one deck hot-melt polyester aluminium laminated film, adopt this kind of material and structure to guarantee the lightweight characteristics of cable.By at the taping head place, increasing the adjusting holddown spring, reduce the tension force of winding machine traction, thereby reach in wrapped process, reduce the wrapped mechanical damage of hot-melt polyester aluminium laminated film.
Claims (6)
1. a PTFE and PI composite insulated flexible lightweight cable, it is characterized in that: the insulation core wire (1) that is included in the outer wrapped one deck inner insulating layer (1-2) successively of conductor (1-1), one deck external insulation layer (1-3) formation, the outer wrapped one deck screen (2) of a described insulation core wire (1) or the stranded bunchy of several described insulation core wire (1), wrapped one deck screen (2) outside it.
2. PTFE according to claim 1 and PI composite insulated flexible lightweight cable, it is characterized in that: described several insulation core wires (1) are 19.
3. PTFE according to claim 1 and PI composite insulated flexible lightweight cable is characterized in that: described conductor (1-1) forms for many 0.08mm silver-plated copper filament tows strands.
4. PTFE according to claim 1 and PI composite insulated flexible lightweight cable, it is characterized in that: described inner insulating layer (1-2) is the PTFE thin-film material.
5. PTFE according to claim 1 and PI composite insulated flexible lightweight cable, it is characterized in that: described external insulation layer (1-3) is the PI composite film material.
6. PTFE according to claim 1 and PI composite insulated flexible lightweight cable, it is characterized in that: described screen (2) is hot-melt polyester aluminium laminated film screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203333040U CN203351248U (en) | 2013-06-09 | 2013-06-09 | Flexible light-duty cable insulated by PTFE and PI composite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203333040U CN203351248U (en) | 2013-06-09 | 2013-06-09 | Flexible light-duty cable insulated by PTFE and PI composite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203351248U true CN203351248U (en) | 2013-12-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203333040U Expired - Lifetime CN203351248U (en) | 2013-06-09 | 2013-06-09 | Flexible light-duty cable insulated by PTFE and PI composite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203351248U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261415A (en) * | 2015-11-16 | 2016-01-20 | 安徽光复电缆有限公司 | High-temperature refractory cable in aero-engine region |
| CN106128567A (en) * | 2016-06-18 | 2016-11-16 | 合肥浦尔菲电线科技有限公司 | A kind of high temperature resistant radioprotective electric wire and preparation method thereof |
| CN107987303A (en) * | 2017-12-28 | 2018-05-04 | 江苏科麦特科技发展有限公司 | A kind of fluoro-containing plastic and its preparation method and application |
-
2013
- 2013-06-09 CN CN2013203333040U patent/CN203351248U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261415A (en) * | 2015-11-16 | 2016-01-20 | 安徽光复电缆有限公司 | High-temperature refractory cable in aero-engine region |
| CN106128567A (en) * | 2016-06-18 | 2016-11-16 | 合肥浦尔菲电线科技有限公司 | A kind of high temperature resistant radioprotective electric wire and preparation method thereof |
| CN107987303A (en) * | 2017-12-28 | 2018-05-04 | 江苏科麦特科技发展有限公司 | A kind of fluoro-containing plastic and its preparation method and application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131218 |