CN1731624A - Radio-frequency cable with loop seclusion function - Google Patents
Radio-frequency cable with loop seclusion function Download PDFInfo
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- CN1731624A CN1731624A CN 200510044439 CN200510044439A CN1731624A CN 1731624 A CN1731624 A CN 1731624A CN 200510044439 CN200510044439 CN 200510044439 CN 200510044439 A CN200510044439 A CN 200510044439A CN 1731624 A CN1731624 A CN 1731624A
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- cable
- radio frequency
- frequency cable
- screen
- loop
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Abstract
The invention discloses a RF cable with loop insulating function, which comprises cable coat, shielding layer, core wires and plug. On the shielding layers of cable and core wires are separately connected with a capacitor of proper capacity. With capacitance coupling, useful high frequency signals enter users' television system and direct current component and low frequency interference added on it will be insulated out.
Description
Technical field
The present invention relates to a kind of improvement technology of radio frequency signal transmission line cable, specifically, relate 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 present invention introduces 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 present invention 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.
Compared with prior art, advantage of the present invention with good effect is: the present invention 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, avoided 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 among the present invention.
Embodiment
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
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 invention is simple, and effect is remarkable, and is with low cost.Certainly; above-mentioned explanation is not to be limitation of the present invention; the present invention 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 invention also should belong to protection scope of the present invention.
Claims (4)
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510044439 CN1731624A (en) | 2005-08-17 | 2005-08-17 | Radio-frequency cable with loop seclusion function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510044439 CN1731624A (en) | 2005-08-17 | 2005-08-17 | Radio-frequency cable with loop seclusion function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1731624A true CN1731624A (en) | 2006-02-08 |
Family
ID=35963942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510044439 Pending CN1731624A (en) | 2005-08-17 | 2005-08-17 | Radio-frequency cable with loop seclusion function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1731624A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337681A (en) * | 2012-10-24 | 2013-10-02 | 甘肃省电力公司电力科学研究院 | Ground current isolator for radio frequency signals |
| CN104849606A (en) * | 2015-05-08 | 2015-08-19 | 无锡乐尔科技有限公司 | Leakage current sensor |
| CN106338628A (en) * | 2016-11-16 | 2017-01-18 | 中国电子科技集团公司第四十研究所 | Protection device for power-frequency interference of broadband microwave access |
-
2005
- 2005-08-17 CN CN 200510044439 patent/CN1731624A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337681A (en) * | 2012-10-24 | 2013-10-02 | 甘肃省电力公司电力科学研究院 | Ground current isolator for radio frequency signals |
| CN103337681B (en) * | 2012-10-24 | 2015-07-08 | 甘肃省电力公司电力科学研究院 | Ground current isolator for radio frequency signals |
| CN104849606A (en) * | 2015-05-08 | 2015-08-19 | 无锡乐尔科技有限公司 | Leakage current sensor |
| CN104849606B (en) * | 2015-05-08 | 2018-06-08 | 无锡乐尔科技有限公司 | Leakage current sensor |
| CN106338628A (en) * | 2016-11-16 | 2017-01-18 | 中国电子科技集团公司第四十研究所 | Protection device for power-frequency interference of broadband microwave access |
| CN106338628B (en) * | 2016-11-16 | 2019-03-01 | 中国电子科技集团公司第四十一研究所 | A kind of protective device of wide-band microwave access Hz noise |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |