CN2824322Y - RF cable with loop isolation function - Google Patents
RF cable with loop isolation function Download PDFInfo
- Publication number
- CN2824322Y CN2824322Y CN 200520087590 CN200520087590U CN2824322Y CN 2824322 Y CN2824322 Y CN 2824322Y CN 200520087590 CN200520087590 CN 200520087590 CN 200520087590 U CN200520087590 U CN 200520087590U CN 2824322 Y CN2824322 Y CN 2824322Y
- Authority
- CN
- China
- Prior art keywords
- cable
- radio frequency
- loop isolation
- screen
- isolation features
- 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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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model discloses an RF cable with a loop isolation function, which comprises an outer sleeve of a wireway, a shielding layer, a core wire and a plug, and the core wire of the wireway and the shielding layer are respectively connected with capacitance of proper capacity. Through a capacitance coupling, useful high frequency signals are entered users' television systems through the cable, and DC component and low frequency interference added on the DC component are isolated out. Thereby, the cable has a loop isolation function, power frequency noise is prevented from generating, and television programs are ensured to be watched normally.
Description
Technical field
The utility model relates to a kind of improvement technology of radio frequency signal transmission line cable, specifically, relates to a kind of radio frequency cable with loop isolation features.
Background technology
At present, need in the television equipment of ground connection at some, when television set carried out work in the output signal that adopts set-top box, regular meeting had influenced normally watching of user with industrial frequency noise.Wherein, very most of reason be since user's family to have line socket to install unreasonable, cause the ground of wired system and the ground in the user family to be connected together; Be because the socket itself that the user adopts does not just have isolation features what is more, introduced the loop interference of power frequency ground in the television system and make, thereby caused the generation of noise, influenced user's hearing enjoying.
Summary of the invention
The utility model is introduced the loop interference of power frequency ground easily in order to overcome in the television system in the prior art, and influence the deficiency that the user normally watches TV programme, a kind of novel radio frequency signal transmission line cable is provided, by simple line construction, make the radio frequency cable possess the loop isolation features, realize the mutual isolation of wired system and television system, guaranteed normally watching of TV programme.
For solving the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of radio frequency cable with loop isolation features comprises heart yearn and screen, respectively is connected with an electric capacity on described heart yearn and screen.
As the further qualification to technique scheme, the capacitor's capacity on described heart yearn and the screen is 1000pF, and adjacent setting of two electric capacity or separation are provided with.
As the further qualification again to technique scheme, the plug of described cable is straight peen or elbow.
Compared with prior art, advantage of the present utility model with good effect is: the utility model is by being connected the electric capacity of a capacity suitable respectively on the heart yearn of existing radio frequency signal transmission line cable and screen, pass through capacitive coupling, make useful high-frequency signal enter user's television system by cable, and DC component and be attached on low-frequency disturbance isolated, thereby make cable possess the loop isolation features, avoid the generation of industrial frequency noise, guaranteed normally watching of TV programme.
Description of drawings
Fig. 1 is the concrete structure schematic diagram of radio frequency cable in the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Existing radio frequency line cable wrap is drawn together cable jacket 1, screen 2, heart yearn 3 and plug 4, and its structure is referring to shown in Figure 1.For making the radio frequency cable have the loop isolation features, the capacitor C 1, the C2 that on screen 2 and heart yearn 3, respectively are connected a capacity suitable, by capacitor C 1, C2 coupling, make useful high-frequency signal enter user's television system by cable, and DC component and be attached on low-frequency disturbance isolated.According to test, the capacity of choosing is capacitor C 1, the C2 of 1000pF, and its isolation effect is comparatively desirable.Described capacitor C 1, C2 can adjacently be provided with, also separable setting.
For guaranteeing usability, the radio frequency cable can be made suitable length as required, and plug 4 also can be made elbow or straight peen, is connected the isolation that can effectively realize between television set and the set-top box between system, avoid the generation of industrial frequency noise, guarantee normally watching of TV programme.
Radio frequency line cable structure of the present utility model is simple, and effect is remarkable, and is with low cost.Certainly; above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present utility model also should belong to protection range of the present utility model.
Claims (6)
1. the radio frequency cable with loop isolation features comprises heart yearn and screen, it is characterized in that: respectively be connected with an electric capacity on described heart yearn and screen.
2. the radio frequency cable with loop isolation features according to claim 1, it is characterized in that: the capacitor's capacity on described heart yearn and the screen is 1000pF.
3. the radio frequency cable with loop isolation features according to claim 1 and 2 is characterized in that: the adjacent setting of the electric capacity on described heart yearn and the screen.
4. the radio frequency cable with loop isolation features according to claim 1 and 2 is characterized in that: described heart yearn separates setting with electric capacity on the screen.
5. the radio frequency cable with loop isolation features according to claim 1 and 2 is characterized in that: the plug of described cable is a straight peen.
6. the radio frequency cable with loop isolation features according to claim 1 and 2 is characterized in that: the plug of described cable is an elbow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520087590 CN2824322Y (en) | 2005-09-26 | 2005-09-26 | RF cable with loop isolation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520087590 CN2824322Y (en) | 2005-09-26 | 2005-09-26 | RF cable with loop isolation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2824322Y true CN2824322Y (en) | 2006-10-04 |
Family
ID=37033442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520087590 Expired - Fee Related CN2824322Y (en) | 2005-09-26 | 2005-09-26 | RF cable with loop isolation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2824322Y (en) |
-
2005
- 2005-09-26 CN CN 200520087590 patent/CN2824322Y/en not_active Expired - Fee Related
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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: 20061004 Termination date: 20091026 |