CN201392694Y - Shielded type coaxial cable - Google Patents
Shielded type coaxial cable Download PDFInfo
- Publication number
- CN201392694Y CN201392694Y CN200920095755U CN200920095755U CN201392694Y CN 201392694 Y CN201392694 Y CN 201392694Y CN 200920095755 U CN200920095755 U CN 200920095755U CN 200920095755 U CN200920095755 U CN 200920095755U CN 201392694 Y CN201392694 Y CN 201392694Y
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- coaxial cable
- type coaxial
- shield type
- layer
- conductor
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Abstract
The utility model relates to a shielded type coaxial cable, belonging to the technical field of communication cables. The shielded coaxial cable comprises a conductor and an insulating layer wrapping the conductor and is characterized in that the insulating layer is provided with a wrapped outer conductor and an outer protective sleeve for wrapping the outer conductor; and the insulating layer is a foam-leather two-layer insulating or leather-foam-leather insulating layer. The shielded type coaxial cable has the advantages of saving copper material and having excellent shielding performance, relatively low cost, low transmission loss, high mechanical strength, clear and stable transmitted signals, small and smart size, simple production, easy connection and the like.
Description
Technical field
The utility model belongs to technical field of communication cables, particularly relates to a kind of shield type coaxial cable.
Background technology
At present, along with the development that telecommunications are advanced by leaps and bounds, the coaxial cable that is applied to the communication apparatus transmission system has also obtained application more and more widely.The structure of known coaxial communication cable is: conductor-insulating barrier-copper wire woven shield-oversheath.The overall dimensions of general this coaxial communication cable is bigger than normal, and especially multicore shielding type coaxial cable is because the outside diameter of cable is bigger, and cost is higher.
Summary of the invention
The utility model provides a kind of novel shield type coaxial cable for solving the problem that prior art exists.
The utility model purpose provides a kind of advantages of good shielding performance, saves copper material, cost is lower, loss is little, mechanical strength is high, transmission signals is steady and audible, and the shield type coaxial cable of characteristics such as the size essence is little, it is simple to make, continue easily.
The utility model shield type coaxial cable adopts following technical scheme:
A kind of shield type coaxial cable comprises it is characterized in that the insulating barrier of conductor, coating conductor: insulating barrier has the outer conductor of coating and coats the oversheath of outer conductor, and insulating barrier is the two-layer insulation of foaming-Pi or skin-foaming-Pi insulating barrier.
The utility model shield type coaxial cable can also adopt following technical measures:
Described shield type coaxial cable is characterized in: the two-layer insulation system of foaming-Pi is that internal layer is foaming layer, and skin is solid polyethylene layer.
Described shield type coaxial cable is characterized in: outer conductor is that aluminum composite belt adds the screen that the copper wire braiding is formed.
Described shield type coaxial cable is characterized in: outer conductor inside places ground wire, and ground wire contacts with the metal covering of screen.
Described shield type coaxial cable, be characterized in: the shield type coaxial cable is a multicore coaxial cable, multicore coaxial cable is coated with polyester belt, polyester belt is coated with metal wire knitted or aluminum composite belt adds the screen that metal wire knitted is formed, place earth connection in the braid, the screen outside coats oversheath.
Described shield type coaxial cable is characterized in: oversheath is PVC, low smoke and zero halogen, polyethylene or other polyolefine material extruding layer.
Advantage that the utlity model has and good effect:
The shield type coaxial cable, owing to adopt the utility model brand-new technology scheme, its cable insulation design foaming skin structure, foaming layer can reduce the dielectric constant of dielectric, thereby reduces the electric capacity and the loss of cable.Crust is a polyethylene, can increase the mechanical strength of insulated wire cores, improves the damp proof insulation performance of insulated wire cores; Coaxial shielding layer selects for use metal compound belt to add the count that metal wire knitted can reduce braid, reduce cost, also improved production efficiency, and when high frequency, the low-density braid can also make " side frequency difference " to reduce, add metal compound belt simultaneously and make coverage rate reach 100%, can improve the shielding properties of cable greatly, make transmission signals more steady and audible.In addition the utility model also have the size essence little, make simple, advantage such as continue easily.
Description of drawings
Fig. 1 is the utility model multicore shielding type coaxial cable structure schematic diagram;
Fig. 2 is the structural representation of single core coaxial cable among Fig. 1.
Among the figure: 1-1, inner wire; 1-2, foaming-Pi insulating barrier; 1-3, single core outer conductor; 1-4, single core sheath; 1, single core coaxial cable; 2, polyester belt; 3, aluminum composite belt; 4, nonwoven fabrics; 5, metal wire knitted screen; 6, oversheath; 7, tear line.
Embodiment
For further understanding technology contents of the present utility model, characteristics and effect, enumerate following example now, and conjunction with figs. is described in detail as follows:
Embodiment
With reference to accompanying drawing 1 and Fig. 2.
A kind of shield type coaxial cable comprises the insulating barrier of conductor, coating conductor.Insulating barrier has the outer conductor of coating and coats the oversheath of outer conductor; Insulating barrier is that internal layer is foaming layer for the two-layer insulation system of the two-layer insulation foaming-Pi of foaming-Pi, and skin is solid polyethylene layer.Outer conductor is the copper wire woven shield.Outer conductor inside can place ground wire, and ground wire contacts with the metal covering of screen.The shield type coaxial cable is a multicore coaxial cable, and multicore coaxial cable is coated with polyester belt, and polyester belt is coated with aluminum composite belt 3 screens, and the screen outside coats oversheath 6.Oversheath 6 is PVC, low smoke and zero halogen, polyethylene or other polyolefine material extruding layer.
The concrete structure of present embodiment:
8 single core coaxial cables 1 are wrapped up by polyester belt 2, polyester belt 2 outer aluminum composite belt 3 screens that coat, and aluminum composite belt 3 screens are outward metal wire knitted screens 5, No. 1 vertical bag of core nonwoven fabrics 4 in the middle of the cable core is so that the cable rounding; Outside the metal wire knitted screen 5 is oversheath 6 and tear line 7.Described total screen is that aluminum composite belt adds metal wire knitted, also can place ground wire between the two, this structure has reduced total braiding density wiry, reduced cable cost, improved production efficiency, add metal compound belt simultaneously and can improve the shielding properties of cable again, make transmission signals more steady and audible.
Fig. 2 is the detailed icon of the single core coaxial cable 1 of Fig. 1, inner wire 1-1 can be naked copper, zinc-plated, silver-plated, copper cover aluminum (steel) etc., outer surface coats the foaming-Pi insulating barrier 1-2 by foaming layer and nonfoamed layer combination form, foaming layer is in the same place with the nonfoamed layer tight adhesion, foaming layer can reduce the dielectric constant of dielectric, thereby reduce the electric capacity and the loss of cable, exodermis can increase the mechanical strength of insulated wire cores, improves the damp proof insulation performance of insulated wire cores; Single core outer conductor 1-3 (also can be aluminum composite belt or aluminum composite belt adds metal wire knitted) that copper wire braiding is arranged outside insulating barrier, outer conductor is coated with single core sheath 1-4, and the multi-core coaxial oversheath 6 among this list core sheath 1-4 and Fig. 1 can be PVC, low smoke and zero halogen, polyethylene or other polyolefine material.
This shield type coaxial cable embodiment is 8 core coaxial cables, and both the center was provided with 1, is provided with 7 on every side.Can also make coaxial cables such as 4 cores, 7 cores, 16 cores, 32 cores, 42 cores as required.
Claims (6)
1. shield type coaxial cable comprises the insulating barrier of conductor, coating conductor, and it is characterized in that: insulating barrier has the outer conductor of coating and coats the oversheath of outer conductor, and insulating barrier is the two-layer insulation of foaming-Pi or skin-foaming-Pi insulating barrier.
2. according to the described shield type coaxial cable of claim 1, it is characterized in that: the two-layer insulation system of foaming-Pi is that internal layer is foaming layer, and skin is solid polyethylene layer.
3. shield type coaxial cable according to claim 1 is characterized in that: outer conductor is that aluminum composite belt adds the screen that the copper wire braiding is formed.
4. shield type coaxial cable according to claim 3 is characterized in that: outer conductor inside places ground wire, and ground wire contacts with the metal covering of screen.
5. shield type coaxial cable according to claim 1, it is characterized in that: the shield type coaxial cable is a multicore coaxial cable, multicore coaxial cable is coated with polyester belt, polyester belt is coated with metal wire knitted or aluminum composite belt adds the screen that metal wire knitted is formed, place earth connection in the braid, the screen outside coats oversheath.
6. shield type coaxial cable according to claim 1 is characterized in that: oversheath is PVC, low smoke and zero halogen, polyethylene or other polyolefine material extruding layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920095755U CN201392694Y (en) | 2009-03-05 | 2009-03-05 | Shielded type coaxial cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920095755U CN201392694Y (en) | 2009-03-05 | 2009-03-05 | Shielded type coaxial cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201392694Y true CN201392694Y (en) | 2010-01-27 |
Family
ID=41599516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920095755U Expired - Fee Related CN201392694Y (en) | 2009-03-05 | 2009-03-05 | Shielded type coaxial cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201392694Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976596A (en) * | 2010-08-03 | 2011-02-16 | 昆山市七浦电刷线有限公司 | Tinned copper alloy braided wire |
| CN102708966A (en) * | 2012-06-15 | 2012-10-03 | 昆山翰辉电子科技有限公司 | Coaxial electric wire |
| CN104575853A (en) * | 2014-12-09 | 2015-04-29 | 东莞市永晟电线科技股份有限公司 | Anti-jamming high-frequency data transmission cable |
| CN105976919A (en) * | 2016-06-20 | 2016-09-28 | 安徽华能电缆集团有限公司 | Cable for aeronautics and astronautics aircraft |
| CN108242583A (en) * | 2017-12-17 | 2018-07-03 | 江苏俊知技术有限公司 | A kind of test method of the internal transmission delay differences of parallel double conducting wire cable and its line of new structure |
-
2009
- 2009-03-05 CN CN200920095755U patent/CN201392694Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976596A (en) * | 2010-08-03 | 2011-02-16 | 昆山市七浦电刷线有限公司 | Tinned copper alloy braided wire |
| CN101976596B (en) * | 2010-08-03 | 2012-10-24 | 昆山市七浦电刷线有限公司 | Tinned copper alloy braided wire |
| CN102708966A (en) * | 2012-06-15 | 2012-10-03 | 昆山翰辉电子科技有限公司 | Coaxial electric wire |
| CN104575853A (en) * | 2014-12-09 | 2015-04-29 | 东莞市永晟电线科技股份有限公司 | Anti-jamming high-frequency data transmission cable |
| CN105976919A (en) * | 2016-06-20 | 2016-09-28 | 安徽华能电缆集团有限公司 | Cable for aeronautics and astronautics aircraft |
| CN108242583A (en) * | 2017-12-17 | 2018-07-03 | 江苏俊知技术有限公司 | A kind of test method of the internal transmission delay differences of parallel double conducting wire cable and its line of new structure |
| CN108242583B (en) * | 2017-12-17 | 2023-08-01 | 江苏俊知技术有限公司 | Parallel double-wire cable with novel structure and method for testing transmission delay difference in wire pair of parallel double-wire cable |
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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: 20100127 Termination date: 20140305 |