CN109561267A - A kind of dual polarization tuner of the detachable fin of band - Google Patents
A kind of dual polarization tuner of the detachable fin of band Download PDFInfo
- Publication number
- CN109561267A CN109561267A CN201811475414.4A CN201811475414A CN109561267A CN 109561267 A CN109561267 A CN 109561267A CN 201811475414 A CN201811475414 A CN 201811475414A CN 109561267 A CN109561267 A CN 109561267A
- Authority
- CN
- China
- Prior art keywords
- waveguide
- circuit board
- board box
- fin
- bottom case
- 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.)
- Pending
Links
- 230000009977 dual effect Effects 0.000 title claims abstract description 13
- 230000010287 polarization Effects 0.000 title claims abstract description 13
- 210000004534 cecum Anatomy 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 230000008054 signal transmission Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
Abstract
The invention discloses a kind of dual polarization tuners of the detachable fin of band, comprising: waveguide, set on waveguide upper end circuit board box and be removably fixed in the fin plate of circuit board box outer surface；Waveguide lower ending opening, waveguide upper end are cecum；Waveguide is the small gradation type cylindrical structure of the big top caliber of lower part caliber；Circuit board box is made of bottom case, cover board and the circuit board between bottom case and cover board；Four corner locations of circuit board box are respectively arranged with threaded hole, and through-hole corresponding with screw thread hole site is provided on fin plate, and fin plate is each passed through through-hole and threaded hole by screw and is detachably fixed fin plate and circuit board box.The present invention can install or remove fin plate as needed, while using the waveguide structure of gradation type cylindrical body, keep microwave signal transmission effect more preferable, the signal for being more advantageous to high frequency to intermediate frequency is converted, waveguide and bottom case are integrally formed, and increase the leakproofness of circuit board box, enhance service performance.
Description
Technical field
The present invention relates to radio-frequency antenna technical field, the dual polarization tuner of especially a kind of detachable fin of band.
Background technique
Tuner is the circuit in television receiver front end, usually by input circuit, high-frequency amplifier, local oscillator and mixed
Frequency device composition；The effect of tuner is to select required high-frequency TV signal from the electric signal of antenna induction and amplify, by
Mixer stage generates image medium-frequency signal and the first intermediate-freuqncy signal of sound accompaniment, and they are sent in image and puts channel and amplifies.It is high
The local frequency of frequency head is easily acted upon by temperature changes, and the above problem can be overcome by correcting although with AFC circuit, but with
Tuner function is integrated to be continued to develop with volume microminiaturization, and the calorific value of tuner internal circuit unit gradually increases and has
Constantly reduced conducive to the space and surface area of heat dissipation so that tuner range of temperature is larger when in use and rate of change compared with
Fastly, the noise coefficient of tuner is affected significantly.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of dual polarization high frequencies of the detachable fin of band
Head, the application can install or remove fin plate as needed, while using the waveguide structure of gradation type cylindrical body, believe microwave
Number laser propagation effect is more preferable, and the signal for being more advantageous to high frequency to intermediate frequency is converted, and waveguide and bottom case are integrally formed, and increases circuit board
The leakproofness of box enhances service performance.
The purpose of the present invention is achieved through the following technical solutions:
A kind of dual polarization tuner of the detachable fin of band, comprising:
Waveguide, set on waveguide upper end circuit board box and be removably fixed in the fin plate of circuit board box outer surface；Wave
Conduit lower ending opening, waveguide upper end are cecum；Waveguide is the small gradation type cylindrical structure of the big top caliber of lower part caliber；
Circuit board box is made of bottom case, cover board and the circuit board between bottom case and cover board；Bottom case is weldingly connected with cover board；Circuit
Four corner locations of plate box are respectively arranged with threaded hole, and through-hole corresponding with screw thread hole site, wing are provided on fin plate
Sheet is each passed through through-hole and threaded hole by screw and is detachably fixed fin plate and circuit board box；The upper end of circuit board box is also
There are two export the port F for setting.
Preferably, fin plate includes that bottom plate and several strip fins set on the bottom plate, the lower surface of bottom plate are also set up
There is thermally conductive sheet, which is conducive to the heat of order wire circuit plate box, improves the service performance of tuner.
Preferably, waveguide and bottom case are integrally formed, and are provided with the pad being weldingly connected with cover board, bottom case side on bottom case
Edge is provided with embedded groove, and cover board surrounding is provided with baffle, be provided on baffle insertion it is convex stupefied, when cover board and bottom case are buckled into one
When whole, the pad of side edge thereof is just touched with bottom case side edge, this when mutually welds bottom case with cover board, after welding
Circuit board box good airproof performance, outdoor use be not in rain leakage influence circuit board work the problem of.
Preferably, the lower surface of waveguide is additionally provided with scale, which is adjusted when installing convenient for staff.
Preferably, feed ring flange is additionally provided with below waveguide, feed ring flange center is provided with circular open, circle
The blend stop that shape open edge extends straight up, the blend stop are blinded by the connection gap of waveguide Yu feed ring flange, avoid
Influence of the gap to microwave transmission, while aesthetics is strong.
Preferably, it is arranged at intervals with multiple fixing threaded holes on blend stop, fixed screw can be passed through by waveguide and feed flange
Disk is mutually fixed.
The beneficial effects of the present invention are:
The present invention can install or remove fin plate as needed, while using the waveguide structure of gradation type cylindrical body, make microwave
Signal transmission effect is more preferable, and the signal for being more advantageous to high frequency to intermediate frequency is converted, and waveguide and bottom case are integrally formed, and increases circuit
The leakproofness of plate box enhances service performance.
Detailed description of the invention
Fig. 1 is the schematic diagram after fin plate of the present invention and tuner disassembly；
Fig. 2 is that the present invention is the structural schematic diagram that fin plate is mounted on circuit board box；
Fig. 3 is the simple floor map in back of fin plate of the present invention；
In figure, 101- waveguide, 102- circuit board box, 103- fin plate, 104- exports the port F, 105- threaded hole, and 106- is logical
Hole, 107- feed ring flange, 108- blend stop, 109- fixing threaded hole, 110- scale, 111- thermally conductive sheet.
Specific embodiment
Technical solution of the present invention is described in further detail with reference to the accompanying drawing, but protection scope of the present invention is not limited to
It is as described below.
A kind of dual polarization tuner of the detachable fin of band, please refers to shown in attached drawing 1- attached drawing 3, comprising:
Waveguide 101, set on 101 upper end of waveguide circuit board box 102 and be removably fixed in 102 outer surface of circuit board box
Fin plate 103；101 lower ending opening of waveguide, 101 upper end of waveguide are cecum；Waveguide 101 is the big upper tube of lower part caliber
The small gradation type cylindrical structure of diameter；Circuit board box 102 is by bottom case, cover board and the circuit board structure between bottom case and cover board
At；Bottom case is weldingly connected with cover board；Four corner locations of circuit board box 102 are respectively arranged with threaded hole 105, fin plate 103
On be provided with through-hole 106 corresponding with 105 position of threaded hole, fin plate 103 is each passed through through-hole 106 and screw thread by screw
Fin plate 103 and circuit board box 102 are detachably fixed by hole 105；The upper end of circuit board box 102 exports the end F there are two also setting up
Mouth 104.
As preferred one embodiment, fin plate 103 includes bottom plate and several strip fins set on the bottom plate, bottom
The lower surface of plate is additionally provided with thermally conductive sheet 111, which is conducive to the heat of order wire circuit plate box 102, improves tuner
Service performance.
Further, when fin plate 103 and circuit board box 102 are fixed as one, when being worked due to circuit board box 102
A large amount of heat can be distributed, is easy to appear the phenomenon in gap or injustice between fin plate 103 and circuit board box 102 during installation,
And a thermally conductive sheet 111 is arranged at the back of fin plate 103 in the application, when fixed by screw, thermally conductive sheet 111 is just tightly pasted
Between circuit board box 102 and fin plate 103, fin plate 103 is transferred heat to, since the heat dissipation area of fin plate 103 is big,
The heat that tuner work generates can quickly be dissipated.
As preferred one embodiment, waveguide 101 and bottom case are integrally formed, and are provided on bottom case and are welded phase with cover board
Pad even, bottom case edge is provided with embedded groove, and cover board surrounding is provided with baffle, and it is convex stupefied to be provided with insertion on baffle, works as lid
As soon as plate and bottom case are buckled into entirety, pad and the bottom case side edge of side edge thereof are touched, this when is by bottom case
It is mutually welded with cover board, 102 good airproof performance of circuit board box after welding, is not in that rain leakage influences circuit board in outdoor use
The problem of work.
As preferred one embodiment, the lower surface of waveguide 101 is additionally provided with scale 110, which is convenient for
Staff is adjusted when installing.
As preferred one embodiment, the lower section of waveguide 101 is additionally provided with feed ring flange 107, feed ring flange
107 centers are provided with circular open, the blend stop 108 that rounded opening edge extends straight up, which is blinded by waveguide
101 with the connection gap of feed ring flange 107, avoid influence of the gap to microwave transmission, while aesthetics is strong.Further
, it is arranged at intervals with multiple fixing threaded holes 109 on blend stop 108, fixed screw 109 can be passed through by waveguide 101 and feed flange
107 phase of disk is fixed.
It should be noted that the present invention can install or remove fin plate 103 as needed, while using gradation type cylindrical body
101 structure of waveguide, keep microwave signal transmission effect more preferable, be more advantageous to high frequency to intermediate frequency signal convert, waveguide 101
It is integrally formed with bottom case, increases the leakproofness of circuit board box 102, enhance service performance.
A specific embodiment of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.
Claims (6)
1. a kind of dual polarization tuner of the detachable fin of band characterized by comprising
Waveguide, set on waveguide upper end circuit board box and be removably fixed in the fin plate of circuit board box outer surface；Wave
Conduit lower ending opening, waveguide upper end are cecum；Waveguide is the small gradation type cylindrical structure of the big top caliber of lower part caliber；
Circuit board box is made of bottom case, cover board and the circuit board between bottom case and cover board；Bottom case is weldingly connected with cover board；Circuit
Four corner locations of plate box are respectively arranged with threaded hole, and through-hole corresponding with screw thread hole site, wing are provided on fin plate
Sheet is each passed through through-hole and threaded hole by screw and is detachably fixed fin plate and circuit board box；The upper end of circuit board box is also
There are two export the port F for setting.
2. the dual polarization tuner of the detachable fin of a kind of band according to claim 1, which is characterized in that fin plate includes bottom
Plate and several strip fins set on the bottom plate, the lower surface of bottom plate are additionally provided with thermally conductive sheet.
3. the dual polarization tuner of the detachable fin of a kind of band according to claim 1, which is characterized in that waveguide and bottom case
It is integrally formed, is provided with the pad being weldingly connected with cover board on bottom case.
4. the dual polarization tuner of the detachable fin of a kind of band according to claim 1, which is characterized in that the lower part of waveguide
Surface is additionally provided with scale.
5. the dual polarization tuner of the detachable fin of a kind of band according to claim 1, which is characterized in that the lower section of waveguide
It is additionally provided with feed ring flange, feed ring flange center is provided with circular open, the gear that rounded opening edge extends straight up
Item.
6. the dual polarization tuner of the detachable fin of a kind of band according to claim 5, which is characterized in that interval is set on blend stop
It is equipped with multiple fixing threaded holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811475414.4A CN109561267A (en) | 2018-12-04 | 2018-12-04 | A kind of dual polarization tuner of the detachable fin of band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811475414.4A CN109561267A (en) | 2018-12-04 | 2018-12-04 | A kind of dual polarization tuner of the detachable fin of band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109561267A true CN109561267A (en) | 2019-04-02 |
Family
ID=65868891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811475414.4A Pending CN109561267A (en) | 2018-12-04 | 2018-12-04 | A kind of dual polarization tuner of the detachable fin of band |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109561267A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022062260A1 (en) * | 2020-09-28 | 2022-03-31 | 京信通信技术(广州)有限公司 | Low-noise block having filter |
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| CN104752826A (en) * | 2015-03-06 | 2015-07-01 | 江苏麦科讯通信科技有限公司 | Satellite feed source assembly |
| CN205754602U (en) * | 2016-06-15 | 2016-11-30 | 深圳市平方兆赫科技有限公司 | A kind of anti-interference tuner |
| CN206060958U (en) * | 2016-08-30 | 2017-03-29 | 中山市瀚扬电子科技有限公司 | KU band duals local oscillator four exports the improved structure of frequency demultiplier and frequency demultiplier waveguide cylinder |
| CN206060692U (en) * | 2016-08-30 | 2017-03-29 | 中山市瀚扬电子科技有限公司 | Integrated frequency demultiplier |
| CN206194965U (en) * | 2016-11-24 | 2017-05-24 | 国家新闻出版广电总局五七二台 | Receiving antenna |
| CN108550970A (en) * | 2018-06-20 | 2018-09-18 | 成都宝通天宇电子科技有限公司 | A kind of coaxial waveguide radial combiner |
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2018
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|---|---|---|---|---|
| CN1098562A (en) * | 1994-06-24 | 1995-02-08 | 张天林 | The single parabolic C wave band antenna deflection focusing receiving special-purpose feed |
| US6075497A (en) * | 1997-06-30 | 2000-06-13 | Acer Neweb Corp. | Multiple-feed electromagnetic signal receiving apparatus |
| JPH1141001A (en) * | 1997-07-18 | 1999-02-12 | Fujitsu General Ltd | Primary radiator |
| WO2003096116A1 (en) * | 2002-05-10 | 2003-11-20 | Rheinische Friedrich-Wilhelms- Universität Bonn | Optical parametric oscillator and amplifier |
| CN201066847Y (en) * | 2006-09-06 | 2008-05-28 | 郑振诚 | Phase lock ring high-frequency header for omnidirectional frequency modulation free satellite receiver |
| US20080123296A1 (en) * | 2006-11-29 | 2008-05-29 | Foxconn Technology Co., Ltd. | Heat dissipation system |
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| CN104469217A (en) * | 2015-01-04 | 2015-03-25 | 安徽波维电子科技有限公司 | C-waveband fin type high-frequency head |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022062260A1 (en) * | 2020-09-28 | 2022-03-31 | 京信通信技术(广州)有限公司 | Low-noise block having filter |
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