CN210225539U - Video signal filter and video type filtering system - Google Patents
Video signal filter and video type filtering system Download PDFInfo
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- CN210225539U CN210225539U CN201920969610.0U CN201920969610U CN210225539U CN 210225539 U CN210225539 U CN 210225539U CN 201920969610 U CN201920969610 U CN 201920969610U CN 210225539 U CN210225539 U CN 210225539U
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Abstract
The utility model relates to a video signal wave filter and video type filtering system, this video signal wave filter includes: the device comprises a navigation contact pin, a navigation jack and eight-path signal filtering modules; the aerial pint is connected with the input end of the eight-path signal filtering module, and the aerial pint hole is connected with the output end of the eight-path signal filtering module; after the aviation plug pin is connected with the signal to be filtered, the signal to be filtered is filtered through the eight-path signal filtering module and is output to the receiving equipment through the aviation plug hole; the utility model discloses an it is integrated on eight way signal filtering module with the required eight way signal lines of video signal, adopted the integrated design, can save about 30% volume space, also reduce the weight of a whole set of video signal wave filter simultaneously, can satisfy the actual work demand of user to overcome traditional wave filter and handled the problem that causes bulky, difficult installation alone to every way signal.
Description
Technical Field
The utility model relates to a wave filter field especially relates to a video signal wave filter and video type filtering system.
Background
The traditional filter can process each path of signals independently, on one hand, the installation volume for customer installation needs to be large, installation operation is not easy, on the other hand, the weight of the whole set of equipment of a user is increased, and unnecessary obstruction is caused on the design allowance of the user.
Therefore, it is desirable to develop a new video signal filter and a video-based filtering system to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a video signal wave filter and video type filtering system to overcome the problem that eight way signal lines mutually independent installations of traditional wave filter caused bulky, difficult installation.
In order to solve the above technical problem, the utility model provides a video signal filter, it includes: the device comprises a navigation contact pin, a navigation jack and eight-path signal filtering modules; the aerial pint is connected with the input end of the eight-path signal filtering module, and the aerial pint hole is connected with the output end of the eight-path signal filtering module; after the aviation plug pin is connected with the signal to be filtered, the signal to be filtered is filtered through the eight-path signal filtering module and is output to the receiving equipment through the aviation plug hole.
Further, the eight-path signal filtering module comprises: 8 filter circuits; each filter circuit includes: the differential mode inductor and the differential mode capacitor 2 are respectively connected in series at two ends of the differential mode inductor; namely, the signal to be filtered is filtered by each filter circuit.
Further, the differential mode inductor adopts a differential mode inductor with an inductance value of 10 muH, and the common mode capacitor adopts a common mode capacitor with a capacitance value of 3.3 nF.
In another aspect, the utility model provides a video type filtering system, it includes: a video signal filter, and a stainless steel nickel-plated housing for enclosing the video signal filter.
Further, the video signal filter is adapted to employ the video signal filter as described above.
Further, the common-mode capacitor of the video signal filter adopts a Y2 ceramic capacitor.
Furthermore, the magnetic ring of the common mode inductor of the video signal filter is made of a high-frequency low-pass iron powder core material.
The beneficial effects of the utility model are that, the utility model discloses an it is integrated on eight way signal filtering module with the required eight way signal lines of video signal, adopted the integrated design, can save about 30% volume space, also reduce the weight of a whole set of video signal wave filter simultaneously, can satisfy the actual work demand of user to overcome traditional wave filter and handled the problem that causes bulky, difficult installation to every way signal alone.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a circuit diagram of a video signal filter according to the present invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
Example 1
Fig. 1 is a circuit diagram of a video signal filter according to the present invention.
In the present embodiment, as shown in fig. 1, the present embodiment provides a video signal filter including: the device comprises a navigation contact pin, a navigation jack and eight-path signal filtering modules; the aerial pint is connected with the input end of the eight-path signal filtering module, and the aerial pint hole is connected with the output end of the eight-path signal filtering module; after the aviation plug pin is connected with the signal to be filtered, the signal to be filtered is filtered through the eight-path signal filtering module and is output to the receiving equipment through the aviation plug hole.
In this embodiment, the eight signal lines required by the video signal are integrated on the eight signal filtering modules, and an integrated design is adopted, so that about 30% of volume space can be saved, meanwhile, the weight of the whole set of video signal filter is also reduced, the actual working requirement of a user can be met, and the problems of large volume and difficult installation caused by independent processing of each signal by the traditional filter are solved.
In order to integrate the filter circuits, the eight-path signal filtering module includes: 8 filter circuits; each filter circuit includes: the differential mode inductor and the differential mode capacitor 2 are respectively connected in series at two ends of the differential mode inductor; namely, the signal to be filtered is filtered by each filter circuit.
In this embodiment, as shown in fig. 1, the A, B, C, D, E, F, G, H end of the eight-path signal filtering module is respectively connected to the signals of the video input device through the navigation pin, and is connected to the navigation jack through the a ', B ', C ', D ', ' E ', F ', G ', and H ' ends for output.
Specifically, the differential mode inductor adopts a differential mode inductor with an inductance value of 10 muH, and the common mode capacitor adopts a common mode capacitor with a capacitance value of 3.3 nF.
In the embodiment, the video signal filter is used for video signal input positions, and can effectively inhibit signal interference in a frequency range of 1MHz to 1 Ghz.
In the embodiment, the video signal filter filters signals in a split mode, the rated current is 0.5A, the rated voltage is 100VDC, and the insulation resistance from a wire to the ground is not less than 150M omega.
Example 2
On the basis of the above embodiments, the present embodiment provides a video-type filtering system, which includes: a video signal filter, and a stainless steel nickel-plated housing for enclosing the video signal filter.
In this embodiment, the input/output end of the video signal filter adopts a plug/socket interface, which is convenient for users to install and use and improves the installation efficiency of users.
In this embodiment, the housing is made of a steel plate, and has nickel plating on the surface, so that the housing has good surface gloss, good metal sealing performance, good shielding effectiveness, and the like.
In this embodiment, a high-frequency anti-interference device feed-through capacitor is used in the circuit of the video signal filter, which has a strong effect of suppressing high-frequency interference.
Specifically, the video signal filter is adapted to employ the video signal filter as provided in embodiment 1.
In the present embodiment, the video signal filter has been clearly described in the above embodiments.
Specifically, the common-mode capacitor of the video signal filter is a Y2 ceramic capacitor.
In the embodiment, the Y2 ceramic capacitor has the advantages of excellent electrical property, good reliability, high temperature resistance and small volume.
Specifically, the magnetic ring of the common mode inductor of the video signal filter is made of a high-frequency low-pass iron powder core material.
In this embodiment, the high-frequency electrical characteristics of the high-frequency low-pass ferrite core material have high stability.
In this embodiment, the input and output ends of the video signal filter are completely independent cabins, and the output position is in the form of internal threads, so that the video signal filter can be directly installed by screwing and fixing, the bottom surface of the video signal filter can be completely installed on the surface wall of a darkroom, the contact area is increased, the grounding impedance is reduced, and the high-frequency interference can be effectively inhibited.
In this embodiment, the internal components of the video signal filter are fixed by an epoxy resin potting process, so that the internal components are effectively fixed, and the voltage resistance and the insulating electrical performance of the product are improved.
To sum up, the utility model integrates the eight signal lines required by the video signal on the eight signal filtering modules, and adopts the integrated design, thereby saving about 30% of volume space, simultaneously reducing the weight of the whole set of video signal filter, meeting the actual working requirement of the user, and overcoming the problems of large volume and difficult installation caused by the independent processing of each signal by the traditional filter; the video signal filter can effectively inhibit common-mode and differential-mode interference on a single-phase power line through experimental tests in an anechoic chamber, the shielding efficiency can completely meet the test requirements of GB/T12190-2006, each signal adopts a pure differential mode design principle, filtering of eight signal lines is mutually independent, high-frequency interference on the signal lines is well inhibited, output of effective data signals can be ensured, and interference of the high-frequency signals on the data signals is inhibited.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (7)
1. A video signal filter, comprising:
the device comprises a navigation contact pin, a navigation jack and eight-path signal filtering modules; wherein
The aerial pint is connected with the input end of the eight-path signal filtering module, and the aerial pint hole is connected with the output end of the eight-path signal filtering module;
after the aviation plug pin is connected with the signal to be filtered, the signal to be filtered is filtered through the eight-path signal filtering module and is output to the receiving equipment through the aviation plug hole.
2. The video signal filter of claim 1,
the eight-path signal filtering module comprises: 8 filter circuits;
each filter circuit includes: the differential mode inductor and the differential mode capacitor 2 are respectively connected in series at two ends of the differential mode inductor; namely, it is
The signal to be filtered is filtered through each filter circuit.
3. The video signal filter of claim 2,
the differential mode inductor adopts a differential mode inductor with an inductance value of 10 muH, and the common mode capacitor adopts a common mode capacitor with a capacitance value of 3.3 nF.
4. A video-based filtering system, comprising:
a video signal filter, and a stainless steel nickel-plated housing for enclosing the video signal filter.
5. The video-type filtering system of claim 4,
the video signal filter is adapted to employ the video signal filter of any of claims 1-3.
6. The video-type filtering system of claim 5,
the common-mode capacitor of the video signal filter adopts a Y2 ceramic capacitor.
7. The video-type filtering system of claim 5,
the magnetic ring of the common mode inductor of the video signal filter is made of a high-frequency low-pass iron powder core material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920969610.0U CN210225539U (en) | 2019-06-26 | 2019-06-26 | Video signal filter and video type filtering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920969610.0U CN210225539U (en) | 2019-06-26 | 2019-06-26 | Video signal filter and video type filtering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210225539U true CN210225539U (en) | 2020-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920969610.0U Expired - Fee Related CN210225539U (en) | 2019-06-26 | 2019-06-26 | Video signal filter and video type filtering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210225539U (en) |
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2019
- 2019-06-26 CN CN201920969610.0U patent/CN210225539U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200331 Termination date: 20210626 |
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| CF01 | Termination of patent right due to non-payment of annual fee |