CN201838386U - Five-shield sheathed coaxial cable - Google Patents
Five-shield sheathed coaxial cable Download PDFInfo
- Publication number
- CN201838386U CN201838386U CN2010205454949U CN201020545494U CN201838386U CN 201838386 U CN201838386 U CN 201838386U CN 2010205454949 U CN2010205454949 U CN 2010205454949U CN 201020545494 U CN201020545494 U CN 201020545494U CN 201838386 U CN201838386 U CN 201838386U
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- CN
- China
- Prior art keywords
- shield
- layer
- aluminium foil
- coaxial cable
- sheath
- 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 relates to a five-shield sheathed coaxial cable, aiming to solve the technical problem of providing an improved signal transmission cable with fine shielding effect and lower return loss. The technical scheme includes that the five-shield sheathed coaxial cable comprises an inner conductor, an insulating layer, self-adhesive aluminum foil, a first braided layer, crease resistant double-side aluminum foil, a second braided layer and a PVC ( polyvinyl chloride) sheath which are arranged from inside to outside coaxially sequentially. The five-shield sheathed coaxial cable is characterized in that a single-side aluminum foil layer is arranged between the second braided layer and the PVC sheath, and the insulating layer is a skin-foam-skin insulating layer.
Description
Technical field
The utility model relates to a kind of signal-transmitting cable, is specifically related to a kind of five shield sheath formula coaxial cables.
Background technology
Along with the continuous development of the communication technology, each TV network operator has higher requirement to the combination property of CATV (cable TV) connecting system.Telecommunication cable not only wants to adapt to China CATV communication network and the selection needs of user between simulation and the transmission of digital double signal, also will satisfy the advanced synthesis information network requirement of broadband, two-forty.Therefore press for exploitation and have high frequency performance, high echo, low decay, impedance is even, advantages of good shielding performance, protection against the tide, the coaxial cable of characteristics such as cable laying operation is easy.The structure of conventional Four shielding coaxial cable is followed successively by from inside to outside: inner wire, insulating barrier, self-adhesion aluminium foil, ground floor braiding, the two-sided aluminium foil of anti-fold, second layer braiding, PVC sheath.The defective of this type of cable is: described insulating barrier is skin-bubble insulating barrier, and return loss and signal attenuation are bigger; And the shield effectiveness of this type of cable also has much room for improvement.
The utility model content
The purpose of this utility model is to overcome the deficiency that the above-mentioned background technology exists, and a kind of improvement of signal-transmitting cable is provided, and this signal-transmitting cable should have that shield effectiveness is good, the return loss features of smaller.
The utility model proposes following technical scheme:
Five shield sheath formula coaxial cables comprise that from inside to outside inner wire, insulating barrier, self-adhesion aluminium foil, ground floor braiding, the two-sided aluminium foil of anti-fold, the second layer of coaxial setting successively weaves, the PVC sheath; It is characterized in that: be provided with one deck aluminium foil between described second layer braiding and the PVC sheath.
Described aluminium foil is the single face aluminium foil.
Described insulating barrier is skin-bubble-Pi insulating barrier.
The beneficial effects of the utility model are: the utility model is on the basis of conventional Four shielding coaxial cable, increase one deck aluminium foil, improved the shield effectiveness of cable, also strengthen humidity resistance simultaneously, improved the mechanical strength of cable, made the stability of cable obtain better guarantee; In addition, in the utility model, the foam degrees of skin-bubble-Pi insulating barrier that insulating barrier adopts can reach more than 80%, has effectively improved return loss, has reduced the decay index.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with Figure of description, the utility model is described in further detail.
As shown in the figure, five shield sheath formula coaxial cables described in the utility model comprise from inside to outside inner wire 1, insulating barrier 2, self-adhesion aluminium foil 3, ground floor braiding 4, the two-sided aluminium foil 5 of anti-fold, second layer braiding 6, the PVC sheath 8 of coaxial setting successively; Improvement part of the present utility model is: be provided with one deck aluminium foil 7 (can select individual layer aluminium foil or double-layer aluminum-foil for use, specifically determine according to actual conditions) between described second layer braiding and the PVC sheath; Described insulating barrier is skin-bubble-Pi insulating barrier (skin-bubble-Pi insulating material is not described in detail at this for conventional material commonly used in the industry).
Claims (3)
1. five shield sheath formula coaxial cables comprise that from inside to outside inner wire (1), insulating barrier (2), self-adhesion aluminium foil (3), ground floor braiding (4), the two-sided aluminium foil of anti-fold (5), the second layer of coaxial setting successively weaves (6), PVC sheath (8); It is characterized in that: be provided with one deck aluminium foil (7) between described second layer braiding and the PVC sheath.
2. five shield sheath formula coaxial cables according to claim 1 is characterized in that: described aluminium foil (7) is the single face aluminium foil.
3. five shield sheath formula coaxial cables according to claim 2 is characterized in that: described insulating barrier (2) is skin-bubble-Pi insulating barrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205454949U CN201838386U (en) | 2010-09-26 | 2010-09-26 | Five-shield sheathed coaxial cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205454949U CN201838386U (en) | 2010-09-26 | 2010-09-26 | Five-shield sheathed coaxial cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201838386U true CN201838386U (en) | 2011-05-18 |
Family
ID=44008489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205454949U Expired - Fee Related CN201838386U (en) | 2010-09-26 | 2010-09-26 | Five-shield sheathed coaxial cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201838386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103000290A (en) * | 2012-12-25 | 2013-03-27 | 浙江德通科技有限公司 | Braided cable |
-
2010
- 2010-09-26 CN CN2010205454949U patent/CN201838386U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103000290A (en) * | 2012-12-25 | 2013-03-27 | 浙江德通科技有限公司 | Braided cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20130926 |