CN206022585U - Semiconductive jacket sews parallel coaxial-cable - Google Patents
Semiconductive jacket sews parallel coaxial-cable Download PDFInfo
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- CN206022585U CN206022585U CN201620870953.8U CN201620870953U CN206022585U CN 206022585 U CN206022585 U CN 206022585U CN 201620870953 U CN201620870953 U CN 201620870953U CN 206022585 U CN206022585 U CN 206022585U
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Abstract
This utility model is related to semiconductive jacket and sews parallel coaxial-cable.The coaxial cable that purpose is to provide can both carry out signal transmission, and with the function of signal, transmission signal, and two groups of signal simultaneous transmissions, high temperature resistant, low temperature resistant, low cost is received, be easily installed.Technical scheme is：Semiconductive jacket sews parallel coaxial-cable, and the coaxial cable includes that two cables, every cable include inner wire, insulating barrier, outer conductor and the inner sheath for coating successively from inside to outside；The outer conductor is an aluminium foil layer, the aluminium foil layer around surface of insulating layer coat 250 ° 290 ° after form one and be open, the directions of two openings are contrary and mutually back-to-back arrangement；One metal knitted piece is also respectively provided between aluminium foil layer and inner sheath, two metal knitted opposite and axial symmetry arrangement, axis of symmetry is the line of two cable axis on cross section；The inner sheath is semiconductive jacket.Two cables can increase working transmission with simultaneous transmission communication signal.
Description
Technical field
This utility model is related to a kind of coaxial cable, and specifically a kind of semiconductive jacket sews parallel coaxial-cable.
Background technology
With the further development of mobile communication technology, in the region that the signals such as subway, mine, market place builet below the ground compare closing
It is also required to guarantee covering all around for signal of communication；And common radio frequency coaxial-cable, the transfer function of the signal of telecommunication can only be realized,
Requirement can not be met；Therefore, a kind of transmission that can realize the signal of telecommunication is developed, while the transmitting antenna work(but also with the signal of telecommunication
Can, while two groups of communication signals can be transmitted, for the relatively severe coaxial cable of environment, have become urgent reality
Need.
Utility model content
This utility model purpose is to overcome the shortcomings of above-mentioned background technology, there is provided a kind of semiconductive jacket sews parallel coaxial
Cable, the coaxial cable can both carry out signal transmission, and the function with reception signal, transmission signal, and two groups of signals are same
When transmit, high temperature resistant, low temperature resistant, low cost are easily installed.
For achieving the above object, technical solution adopted in the utility model is：
Semiconductive jacket sews parallel coaxial-cable, it is characterised in that：The coaxial cable include being arranged parallel to and by
Two cables that oversheath is connected as a single entity after coating simultaneously, every cable include inner wire, the insulation for coating successively from inside to outside
Layer, outer conductor and inner sheath；The outer conductor is an aluminium foil layer, after the aluminium foil layer coats 250 ° -290 ° around surface of insulating layer
Form one to be open, the directions of two openings are contrary and mutually back-to-back arrangement；One is also respectively provided between aluminium foil layer and inner sheath
Metal knitted, two metal knitted opposite and axial symmetry arrangement, axis of symmetry is the line of two cable axis on cross section；
The inner sheath is semiconductive jacket.Two cables can increase working transmission with simultaneous transmission communication signal.
The aluminium foil layer around insulating barrier outer surface coat 270 ° after formed one be open.
Described metal knitted is made up of anaerobic bare copper wire.
The inner sheath is made using semiconductive polyethylene.
The oversheath is made using high density polyethylene (HDPE).
This utility model beneficial effect is：
Incomplete shielding of this utility model by outer conductor, a part of signal is leaked by outer conductor, and simultaneously
Signal of communication in closed area can be entered inside communication cable by outer conductor, carry out uplink, realize the double of signal
To transmission, by the Parallel Design of two cables, the transmission quantity of common cable twice is can reach, be also equipped with high temperature resistant, low temperature resistant
Characteristic.
Description of the drawings
Fig. 1 is cross-sectional structure schematic diagram of the present utility model.
Specific embodiment
Semiconductive jacket as shown in Figure 1 sews parallel coaxial-cable, is linked as after being coated by oversheath 6 simultaneously including two
One and the cable being arranged parallel to, generally communicate 50 ohm or 75 ohm；Two cable Parallel Designs, can both increase letter
Number transmission quantity, again can material-saving cost, convenient install.
Every cable includes inner wire 1, insulating barrier 2, outer conductor 3 and the inner sheath for coating successively from inside to outside.Outer conductor
For aluminium foil layer, the aluminium foil layer coats 250 ° -290 ° (central angles) around the insulating barrier and forms an opening 7 afterwards, and two are open
Towards outward and opposed；Described opening can be used for the transmitted in both directions of signal (a part of signal of cable transmission be by outer
The opening leaks of conductor, while the signal of communication in closed area is received by inner wire by the opening of outer conductor).As excellent
Choosing, central angle are 270 °.
Outer conductor usage frequency need to be controlled, in rational scope, both to protect in below 100MHz, the coupling loss of outer conductor
The normal transmission of card internal signal, ensures that external signal is normally uploaded again.
One metal knitted 4 is provided between aluminium foil layer and inner sheath, and this metal knitted is located at the side being dorsad open and (compiles
Knit piece to block at aluminium foil opening, in order to avoid affect the reception of external signal), described metal knitted by anaerobic bare copper wire system
Into can both improve the overall flexibility of cable, the transmission attenuation of cable can be optimized again, it is ensured that the stable transmission of internal signal.
As seen from the figure：Two openings, two metal knitted equal axial symmetry arrangements, axis of symmetry is two cables on cross section
The line of axis；In addition, two metal knitted opposite arrangement (arranging face-to-face), two openings be then directed towards contrary (mutually
Back-to-back arrangement).
The inner sheath 5 is semiconductive jacket.Inner sheath is made using semiconductive polyethylene, can both play certain shielding
Effect, can prevent the interference of outside stronger noise again.
The oversheath is made using high density polyethylene (HDPE), have the advantages that resistance to compression, wear-resisting, high temperature resistant, low temperature resistant, bilayer
In overwrap designs, and sheath material, carbon black content increases to 4% by original 2.5% so that the cable can be at -50 DEG C -90 DEG C
Use under environment.
When making, according to the parallel molds for designing, first once-forming production semiconductive inner sheath, then it is outer to put one layer of shield
Sheath, two-layer sheath are required to plasticizing well, smooth, uniform, consistent, and connection neck easily tears, it is impossible to tear sheath.
The utility model is with the conventional advantage for sewing product：
Claims (5)
1. semiconductive jacket sews parallel coaxial-cable, it is characterised in that：The coaxial cable includes being arranged parallel to and by outer
Sheath (6) while two cables being connected as a single entity after cladding, inner wire (1) that every cable includes coating successively from inside to outside,
Insulating barrier (2), outer conductor (3) and inner sheath (5)；The outer conductor is an aluminium foil layer, and the aluminium foil layer is around surface of insulating layer bag
Form an opening (7) after covering 250 ° -290 °, the directions of two openings are contrary and mutually back-to-back arrangement；Aluminium foil layer and inner sheath
Between be also respectively provided with one metal knitted (4), two metal knitted opposite and axial symmetry arrangement, axis of symmetry is on cross section
The line of two cable axis；The inner sheath is semiconductive jacket.
2. semiconductive jacket according to claim 1 sews parallel coaxial-cable, it is characterised in that：The aluminium foil layer is around exhausted
Edge layer outer surface forms one after coating 270 ° and is open.
3. semiconductive jacket according to claim 2 sews parallel coaxial-cable, it is characterised in that：Described metal knitted
It is made up of anaerobic bare copper wire.
4. semiconductive jacket according to claim 3 sews parallel coaxial-cable, it is characterised in that：The inner sheath is adopted
Semiconductive polyethylene is made.
5. semiconductive jacket according to claim 4 sews parallel coaxial-cable, it is characterised in that：The oversheath is adopted
High density polyethylene (HDPE) is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620870953.8U CN206022585U (en) | 2016-08-11 | 2016-08-11 | Semiconductive jacket sews parallel coaxial-cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620870953.8U CN206022585U (en) | 2016-08-11 | 2016-08-11 | Semiconductive jacket sews parallel coaxial-cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206022585U true CN206022585U (en) | 2017-03-15 |
Family
ID=58247907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620870953.8U Active CN206022585U (en) | 2016-08-11 | 2016-08-11 | Semiconductive jacket sews parallel coaxial-cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206022585U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106129566A (en) * | 2016-08-11 | 2016-11-16 | 浙江都美通讯技术股份有限公司 | Semiconductive jacket sews parallel coaxial-cable |
-
2016
- 2016-08-11 CN CN201620870953.8U patent/CN206022585U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106129566A (en) * | 2016-08-11 | 2016-11-16 | 浙江都美通讯技术股份有限公司 | Semiconductive jacket sews parallel coaxial-cable |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |