CN202957075U - Double-shielded coaxial cable - Google Patents
Double-shielded coaxial cable Download PDFInfo
- Publication number
- CN202957075U CN202957075U CN 201220474094 CN201220474094U CN202957075U CN 202957075 U CN202957075 U CN 202957075U CN 201220474094 CN201220474094 CN 201220474094 CN 201220474094 U CN201220474094 U CN 201220474094U CN 202957075 U CN202957075 U CN 202957075U
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- CN
- China
- Prior art keywords
- coaxial cable
- layer
- double
- foil layer
- shielded coaxial
- 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 double-shielded coaxial cable comprising an outer sheath, a braided layer, a polyethylene insulating layer and an inner conductor. The double-shielded coaxial cable also comprises an aluminum foil layer which is located between the braided layer and the polyethylene insulating layer. In the double-shielded coaxial cable, the aluminum foil layer of which the thickness is 0.12 mm is added on the outside of the polyethylene insulating layer, after adding the aluminum foil layer, the shielding effect of the coaxial cable is very good, and the external signal interference caused by long-distance signal transmission and the signal interference caused by that the density of a mesh grid is not enough are avoided. The outer sheath, the braided layer, the aluminum foil layer, the polyethylene insulating layer and the inner conductor are arranged orderly from outside to inside. Compared with the prior art, the double-shielded coaxial cable of the utility model enables the signal propagation stability of the coaxial cable to be increased, and guarantees that the signal transmission instability caused by braiding shielded negligence or accident is eliminated.
Description
Technical field
The utility model relates to video line and manufactures the field, is specifically related to a kind of double shielded coaxial cable.
Background technology
Traditional coaxial cable structure comprises inner wire, polyethylene layer, copper conductor braiding and PVC oversheath, does not have aluminium foil layer, and the signal that external signal disturbs and mesh grid density causes not that causes long range signals to be carried disturbs.
The utility model content
The purpose of this utility model is to overcome the shortcoming and defect of prior art, provides a kind of and can make clearly double shielded coaxial cable of signal stabilization, monitored picture.
A kind of double shielded coaxial cable of the present utility model is achieved through the following technical solutions:
A kind of double shielded coaxial cable comprises oversheath, braid, and polyethylene layer and inner wire, this double shielded coaxial cable also comprises aluminium foil layer, described aluminium foil layer is between braid and polyethylene layer.The polyethylene layer outside increases the aluminium foil layer of 0.12mm thickness in this construction of cable, increase after the aluminium foil layer, the shield effectiveness of coaxial cable is very good, has avoided long range signals to carry the external signal that causes to disturb and because the signal interference that mesh grid density causes not.
As preferably, described oversheath, braid, aluminium foil layer, polyethylene layer and inner wire are arranged in order from outside to inside.
Compared with prior art, the beneficial effect of a kind of double shielded coaxial cable of the present utility model is: can increase the stability that the coaxial cable signal is propagated, guarantee carelessness or unexpected unstable being excluded of causing the signal transmission because of braid shielded.
Description of drawings
Below by embodiment, by reference to the accompanying drawings the utility model is further described.
Fig. 1 is cross-sectional view of the present utility model;
1 is oversheath, and 2 is braid, and 3 is aluminium foil layer, and 4 is polyethylene layer, and 5 is inner wire.
Embodiment
As shown in Figure 1, a kind of double shielded coaxial cable comprises oversheath 1, braid 2, and polyethylene layer 4 and inner wire 5, this double shielded coaxial cable also comprises aluminium foil layer 3, described aluminium foil layer 3 is between braid 2 and polyethylene layer 4.Described oversheath 1, braid 2, aluminium foil layer 3, polyethylene layer 4 and inner wire 5 are arranged in order from outside to inside.
Above-described embodiment; it is an example of the present utility model; be not to limit enforcement of the present utility model and interest field, all or technical schemes of being equal to identical with the described content of the utility model claim all should be included in the utility model protection range.
Claims (2)
1. a double shielded coaxial cable comprises oversheath, braid, and polyethylene layer and inner wire is characterized in that: this double shielded coaxial cable comprises that also thickness is 0.12 millimeter aluminium foil layer, and described aluminium foil layer is between braid and polyethylene layer.
2. a kind of double shielded coaxial cable according to claim 1 is characterized in that: described oversheath, and braid, thickness are 0.12 millimeter aluminium foil layer, polyethylene layer and inner wire are arranged in order from outside to inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220474094 CN202957075U (en) | 2012-09-18 | 2012-09-18 | Double-shielded coaxial cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220474094 CN202957075U (en) | 2012-09-18 | 2012-09-18 | Double-shielded coaxial cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202957075U true CN202957075U (en) | 2013-05-29 |
Family
ID=48462635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220474094 Expired - Fee Related CN202957075U (en) | 2012-09-18 | 2012-09-18 | Double-shielded coaxial cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202957075U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103310887A (en) * | 2013-06-09 | 2013-09-18 | 山东科技大学 | Signal transmission line for gobs of coal mines |
-
2012
- 2012-09-18 CN CN 201220474094 patent/CN202957075U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103310887A (en) * | 2013-06-09 | 2013-09-18 | 山东科技大学 | Signal transmission line for gobs of coal mines |
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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: 20130529 Termination date: 20140918 |
|
| EXPY | Termination of patent right or utility model |