CN203151659U - Anti-interference isolation device for transmission signal of cable television - Google Patents
Anti-interference isolation device for transmission signal of cable television Download PDFInfo
- Publication number
- CN203151659U CN203151659U CN 201320161917 CN201320161917U CN203151659U CN 203151659 U CN203151659 U CN 203151659U CN 201320161917 CN201320161917 CN 201320161917 CN 201320161917 U CN201320161917 U CN 201320161917U CN 203151659 U CN203151659 U CN 203151659U
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- CN
- China
- Prior art keywords
- cable connection
- signal
- signal cable
- connection seat
- shell
- 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 an anti-interference isolation device for the transmission signal of a cable television. The anti-interference isolation device comprises a shell, wherein an input signal cable connection seat is fixedly installed at one end of the shell; an output signal cable connection seat is fixedly installed at the other end of the shell; a low-frequency filter capacitor is connected between a signal transmission end and a signal shielding end of each of the input signal cable connection seat and the output signal cable connection seat; high-voltage isolation rings are arranged in the shell; and each high-voltage isolation ring penetrates between the signal transmission end and the signal shielding end of each of the input signal cable connection seat and the output signal cable connection seat. According to the anti-interference isolation device disclosed by the utility model, low-frequency signals can be effectively blocked by virtue of the low-frequency filter capacitors installed at the signal transmission ends and the signal shielding ends in a wired signal transmission circuit, so that the low-frequency interference signals are isolated outside the television before radiofrequency signals enter in the television; and the high-voltage isolation rings in the shell have a great anti-inductive thunder effect, thus co-ensuring the quality of television images and sounds.
Description
Technical field
The utility model relates to the cable TV signal transmission technique field, relates in particular to the anti-interference spacer assembly of a kind of CATV transmission signal.
Background technology
Very easily be subjected to the interference of low frequency signal when television set is accepted radiofrequency signal, especially especially serious to LCD TV and plasm TV image fast-selling on the present market, though user's family has user terminal, isolation effect is not very desirable.General television transmission cable can produce a large amount of low-frequency disturbance, and its shielding conductor and main line all exist, and can have influence on sound and the quality of television image.
Summary of the invention
At the problem that above-mentioned prior art exists, the utility model provides a kind of CATV transmission signal anti-interference spacer assembly.
To achieve these goals, the technical solution adopted in the utility model is: the anti-interference spacer assembly of a kind of CATV transmission signal, comprise housing, one end of housing is installed with input signal cable Connection Block, the other end of housing is installed with the output signal cable Connection Block, all be connected with low frequency filtering electric capacity between signal transmission ends between input signal cable Connection Block and the output signal cable Connection Block and the signal shielding end, be provided with the high pressure shading ring in the housing, pass the high pressure shading ring between the signal transmission ends between input signal cable Connection Block and the output signal cable Connection Block and the signal shielding end.
As preferably, housing is made by insulating material, and insulating material is plastics, rubber or polymethyl methacrylate.
Compared with prior art, advantage of the present utility model is: utilize the signal transmission ends be installed in the wire signal transmission line and the low frequency filtering electric capacity of signal shielding end, can effectively intercept low frequency signal, radiofrequency signal is entered before the television set, low-frequency interference signal is isolated in outside the television set; High pressure shading ring in the housing has good anti-induction thunder effect, thus common guarantee the quality of television image and sound.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Among the figure: 1, housing; 2, input signal cable Connection Block; 3, output signal cable Connection Block; 4, signal transmission ends; 5, signal shielding end; 6, low frequency filtering electric capacity; 7, high pressure shading ring.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As a kind of execution mode of the present utility model, consult Fig. 1, the utility model comprises housing 1, one end of housing 1 is installed with input signal cable Connection Block 2, the other end of housing 1 is installed with output signal cable Connection Block 3, all be connected with low frequency filtering electric capacity 6 between signal transmission ends 4 between input signal cable Connection Block 2 and the output signal cable Connection Block 3 and the signal shielding end 5, be provided with high pressure shading ring 7 in the housing 1, pass high pressure shading ring 7 between the signal transmission ends 4 between input signal cable Connection Block 2 and the output signal cable Connection Block and the signal shielding end 5.
Housing 1 is made by insulating material, and insulating material is plastics, rubber or polymethyl methacrylate.
The utility model utilization is installed in signal transmission ends 4 in the wire signal transmission line and the low frequency filtering electric capacity 6 of signal shielding end 5, can effectively intercept low frequency signal, radiofrequency signal is entered before the television set, low-frequency interference signal is isolated in outside the television set; High pressure shading ring 7 in the housing 1 has good anti-induction thunder effect, thus common guarantee the quality of television image and sound.
Although be that a most practical and preferred embodiment has been described the utility model in conjunction with current taking as, but be to be understood that, the utility model is not limited to the disclosed embodiments, and is intended to contain multiple modification and equivalent arrangements included in the spirit and scope of the appended claims on the contrary.
Claims (2)
1. anti-interference spacer assembly of CATV transmission signal, comprise housing, it is characterized in that: an end of described housing is installed with input signal cable Connection Block, the other end of described housing is installed with the output signal cable Connection Block, all is connected with low frequency filtering electric capacity between the signal transmission ends between described input signal cable Connection Block and the output signal cable Connection Block and the signal shielding end; Be provided with the high pressure shading ring in the described housing, pass the high pressure shading ring between the signal transmission ends between described input signal cable Connection Block and the output signal cable Connection Block and the signal shielding end.
2. the anti-interference spacer assembly of CATV transmission signal according to claim 1, it is characterized in that: described housing is made by insulating material, and insulating material is plastics, rubber or polymethyl methacrylate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320161917 CN203151659U (en) | 2013-04-03 | 2013-04-03 | Anti-interference isolation device for transmission signal of cable television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320161917 CN203151659U (en) | 2013-04-03 | 2013-04-03 | Anti-interference isolation device for transmission signal of cable television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203151659U true CN203151659U (en) | 2013-08-21 |
Family
ID=48979149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320161917 Expired - Fee Related CN203151659U (en) | 2013-04-03 | 2013-04-03 | Anti-interference isolation device for transmission signal of cable television |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203151659U (en) |
-
2013
- 2013-04-03 CN CN 201320161917 patent/CN203151659U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20150403 |
|
| EXPY | Termination of patent right or utility model |