CN106210595B - For ensuring the antenna isolator of high-frequency signal transmission quality - Google Patents
For ensuring the antenna isolator of high-frequency signal transmission quality Download PDFInfo
- Publication number
- CN106210595B CN106210595B CN201610682982.6A CN201610682982A CN106210595B CN 106210595 B CN106210595 B CN 106210595B CN 201610682982 A CN201610682982 A CN 201610682982A CN 106210595 B CN106210595 B CN 106210595B
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- Prior art keywords
- shielding case
- capacitance
- ground wire
- pair
- connector
- 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
Links
- 230000008054 signal transmission Effects 0.000 title abstract description 4
- 238000005476 soldering Methods 0.000 claims abstract description 19
- 239000003990 capacitor Substances 0.000 claims abstract description 16
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 9
- 239000006071 cream Substances 0.000 claims description 9
- 238000009826 distribution Methods 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000003466 welding Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract 1
- 210000005069 ears Anatomy 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 206010054949 Metaplasia Diseases 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/10—Adaptations for transmission by electrical cable
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Details Of Aerials (AREA)
- Waveguide Aerials (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The present invention relates to a kind of for ensuring the antenna isolator of high-frequency signal transmission quality, it is characterised by comprising: constituting a pair of of shielding case of a shielding cavity, this is to being respectively equipped with the first, second shielded layer connector on the outside of shielding case, the first, second core wire connector is fixed in first, second shielded layer connector, this is to the signal capacitance being connected respectively with the first, second core wire connector in shielding case equipped with multiple ground wire capacitances and one；Ground wire capacitance is no lead or patch capacitor；It is welded respectively with a pair of of shielding case using fluid welding at the two poles of the earth of the ground wire capacitance；Capacitor of the invention is no lead or patch capacitor, line loss is few, it can be ensured that transmits the high frequency characteristics of signal, while being conducive to Reflow Soldering, without human weld, it is suitable for mass production, and then has reached that mass production efficiency is higher, cost is relatively low and the preferable effect of homogeneity of product；Stamping parts can be used in shielding case, and entire product is not necessarily to pcb board, is not necessarily to plug-in unit original part, manual welding, easily guarantee homogeneity of product.
Description
Technical field
The present invention relates to the additional device of television set, specifically a kind of antenna isolator, for ensuring the biography of high-frequency signal
Transmission quality.
Background technique
The ground connection of cable TV is usually and power ground is connected together, and the TV signal of cable television system output connects
Ground is usually the metal shell of set-top box, so when their current potential is unequal (for example external TV signal cable is by thunder
Hit or short circuit accident occur with external power route), electric current will flow to low potential point from high potential point, and generating interference even has
The fever of line television set or cable TV spontaneous combustion.To solve this problem, it is thus proposed that in cable television system signal output end
Capacitance is installed additional between son and the signal input terminal of cable TV, the ground of the two is isolated and signal is kept to connect
What is connect is unimpeded, in the signal input terminal of core wire (signal wire) and cable TV of cable television system signal output terminal
Core wire (signal wire) between install additional a 2200pF or 1000pF signal capacitance, in cable television system signal
Signal input part of the shielded layer (the TV signal ground line of cable television system output) of output terminal with cable TV
Install the ground wire capacitance of a 2200pF or 1000pF between the shielded layer (ground wire of cable TV) of son additional.
Chinese patent literature CN 202364309U, discloses a kind of television antenna isolator, it have shell, circuit board,
The first coaxial slicing ear can be plugged with the signal input terminal of cable TV and can be exported with cable television system signal
The second coaxial slicing ear that terminal plugs；The circuit board is mounted in the shell, and two axis connection terminals are separately mounted to
On the side wall of the shell；Signal capacitance is serially connected between the core wire of two coaxial slicing ears on the circuit board；The circuit
Three ground wire capacitances are parallel with one another on plate and are serially connected between the front side of the shielded layer of two coaxial slicing ears；The circuit
The other three ground wire capacitance is parallel with one another on plate and is serially connected between the rear side of the shielded layer of two coaxial slicing ears.
Be in place of above-mentioned the deficiencies in the prior art: the connection of circuit board and each capacitor is using human weld, batch metaplasia
Produce that efficiency is lower and higher cost, it is poor that human weld easily leads to homogeneity of product；Small product size is big, is unfavorable for being directly installed on
In television set.
Summary of the invention
That the technical problem to be solved in the present invention is to provide a kind of mass production efficiency is higher, cost is relatively low and product is consistent
The preferable antenna isolator of property.
In order to solve the above technical problems, the present invention provides a kind of antenna isolators comprising: open end is oppositely arranged,
To constitute a pair of of shielding case of a shielding cavity, this is to being respectively equipped with the first, second shielded layer connector on the outside of shielding case, and the
One, the first, second core wire connector is fixed in secondary shielding layer connector, this in shielding case be equipped with multiple ground wire capacitances
The signal capacitance being connected respectively with the first, second core wire connector with a two poles of the earth；The ground wire capacitance is nothing
Lead capacitance or patch capacitor；The two poles of the earth of the ground wire capacitance are in its rear and front end, and use side of the tin cream through Reflow Soldering
Formula is weldingly connected with a pair of of shielding case respectively.
The signal capacitance is no lead capacitance or patch capacitor；Before the two poles of the earth of the signal capacitance are in it
Both ends afterwards, and be connected respectively with the inner end of the first, second core wire connector in such a way that tin cream is through Reflow Soldering.
First, second core wire connector coaxial line distribution, in favor of the first, second core wire connector inner end with
It is welded using Reflow Soldering at the two poles of the earth of signal capacitance.Or, the first, second core wire connector vertical distribution, the first, second core
The inner metal line of wire terminal and the two poles of the earth of signal capacitance are welded using Reflow Soldering.
To be symmetrically arranged with multiple through-holes on a pair of of shielding case convenient for using Reflow Soldering；Each ground wire capacitance
The two poles of the earth are weldingly connected with the through-hole on a pair of of shielding case respectively.
Through-hole on the large and small shielding case is set to corresponding pit center, to be further conducive in assembly, using tin
Two electrodes of each capacitor are connected with the mounting hole on large and small shielding case by cream respectively, then carry out Reflow Soldering.
To improve shield effectiveness, assembling respectively, a pair of of shielding case is respectively large and small shielding case；Small shielding case
Open end is protruded into the opening of the big shielding case.
Be equipped between the large and small shielding case it is for each ground wire capacitance and signal capacitance,
Using mounting rack made of insulating materials, when assembling, each capacitor is packed into mounting rack, conducive to raising assembly efficiency and reliably
Property.
The outer rim of the neighbouring mounting rack is equipped with slot, and the edge part of the small shielding case is plugged and fixed in the slot,
The big shielding enclosure is located in the outer rim of the mounting rack, and then secures large and small shielding case and mounting rack, and then implementing
Before Reflow Soldering, each component is just secured, conducive to the reliability for ensuring Reflow Soldering, and then is conducive to ensure homogeneity of product.
The large and small shielding case in a ring or rectangle, mounting rack in the large and small shielding case as large and small shielding case it
Between insulation, shielding case is externally provided with plastic safety cover.
The production method of above-mentioned antenna isolator, it is characterised in that include the following steps:
(1), tin cream is fixedly installed on two electrodes of each capacitor or on each through-hole of a pair of of shielding case；
(2), a pair of of shielding case level is oppositely arranged, and by each ground wire capacitance be respectively arranged on it is described it is big,
Between the opposite through-hole of multiple groups on small shielding case, the signal capacitance is set to the inner end of the shielded layer connector
On；
(3), it is sent into reflow soldering apparatus, completes welding；
(4), insulating protective cover is respectively set on a pair of of shielding case.
As preferred embodiment, in the step (2), a pair of of shielding case level is being oppositely arranged it
Before, further includes: mounting rack is set between a pair of of shielding case, then by each ground wire capacitance and signal capacitance
It is put into the mounting hole of the mounting rack, while the edge part of the small shielding case being plugged and fixed in the slot of the mounting rack.
The technical effect that the present invention has: (1) capacitor that antenna isolator of the invention uses all for no lead capacitance or
Patch capacitor, line loss are few, it can be ensured that transmit the high frequency characteristics of signal, while being conducive to implement Reflow Soldering, without human weld, are suitable for
Mass production, and then reached that mass production efficiency is higher, cost is relatively low and the preferable effect of homogeneity of product；(2) institute
Stating large and small shielding case can be used stamping parts, and entire product is not necessarily to pcb board, be not necessarily to plug-in unit original part, manual welding, easily guarantee product
Consistency；Meanwhile the cavity that large and small shielding case is formed is smaller, shield effectiveness is preferable；(3) product overall volume is smaller, whole to tie
Structure is stronger, is hardly damaged and is suitable for placing into television set.
Detailed description of the invention
In order to make the content of the present invention more clearly understood, below according to specific embodiment and in conjunction with attached drawing,
The present invention is described in further detail, wherein
Fig. 1 is the sectional structure chart of I type antenna isolator of the invention；
Fig. 2 is the longitudinal sectional structure chart in center of the I type antenna isolator of Fig. 1；
Fig. 3 is the right view of the I type antenna isolator in Fig. 1；
Fig. 4 is the sectional structure chart of inverted-L antenna isolator of the invention；
Fig. 5 is the A-A sectional structure chart of Fig. 4；
Fig. 6 is the top view of Fig. 4；
Fig. 7 is the left view of Fig. 5.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and embodiments:
Embodiment 1:
Such as Fig. 1 to 3, the antenna isolator of the present embodiment is I type comprising: the large and small shielding that open end is oppositely arranged
Cover, the open end of small shielding case 5 is protruded into the opening of the big shielding case 3；The first screen is respectively equipped on the outside of large and small shielding case
Layer connector 9, secondary shielding layer connector 10 are covered, the first core wire of coaxial line distribution is fixed in the first, second shielded layer connector
Connector 6, the second core wire connector 2, large and small shielding case is interior to be equipped with multiple ground wire capacitances 8 and a signal capacitance 1；Greatly,
Multiple through-holes are symmetrically arranged on small shielding case.Each through-hole is set to corresponding pit center.
The ground wire capacitance 8 and signal capacitance 1 are no lead capacitance or patch capacitor；The ground wire capacitance
8 the two poles of the earth are in its rear and front end, and in such a way that tin cream 14 is through Reflow Soldering respectively with the through-hole on the large and small shielding case
It is weldingly connected.
The two poles of the earth of the signal capacitance 1 are in its rear and front end, and in such a way that tin cream is through Reflow Soldering respectively with
The inner end of the first, second core wire connector is connected.
The large and small shielding case in a ring, is respectively equipped with plastic safety cover on the large and small shielding case.
As a preferred embodiment, be equipped between the large and small shielding case for each ground wire every
The mounting rack 7 of straight capacitor and signal capacitance.The outer rim of the neighbouring mounting rack 7 is equipped with slot, the side of the small shielding case 5
Edge is plugged and fixed in the slot, is conducive to fixed small shielding case 5.Meanwhile the fixation of big shielding case 3 is set in the installation
In the outer rim of frame 7, and then large and small shielding case and mounting rack 7 are secured, and then before implementing Reflow Soldering, just secures each portion
Part conducive to the reliability for ensuring Reflow Soldering, and then is conducive to ensure homogeneity of product.
Embodiment 2:
The production method of the I type antenna isolator of above-described embodiment 1 comprising following steps:
A, on the mounting hole of two electrodes of each capacitor or large and small shielding case, or the multiple groups on the large and small shielding case
Tin cream is set on opposite through-hole；
B, the first, second core wire connector passes through collets 12 respectively and is fixed in the first, second shielded layer connector, together
When, by the inner end difference secure fit of the first, second shielded layer connector in the mounting hole of the large and small shielding case；
C, the large and small shielding case level is oppositely arranged, and each ground wire capacitance is respectively arranged on the large and small screen
It covers between the opposite through-hole of multiple groups on cover, the signal capacitance is set in the first, second shielded layer connector
Between side；
D, it is sent into reflow soldering apparatus, completes welding；
E, plastic insulation protective cover 4 is respectively set on large and small shielding case.
Embodiment 3:
On the basis of the antenna isolator of above-described embodiment 1 or 2, such as Fig. 4-7, the antenna isolator of the present embodiment is L-type,
The i.e. described first, second core wire connector vertical distribution, the inner end of the first, second core wire connector passes through metal wire and signal respectively
It is welded using Reflow Soldering at the two poles of the earth of capacitance.
Embodiment 4:
The antenna isolator of one of above-described embodiment 1 to 3, the application on television set tuner, or in network cable
Application on isolator, or the application on RJ45 interface or RJ45 type network card interface.
The present embodiment it is obvious, the above embodiment is merely an example for clearly illustrating the present invention, and not be
Restriction to embodiments of the present invention.For those of ordinary skill in the art, on the basis of the above description also
It can make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.And this
Belong to the obvious changes or variations that spirit of the invention is extended out a bit to be still in the protection scope of this invention.
Claims (5)
1. a kind of antenna isolator, characterized by comprising: open end is oppositely arranged, is shielded with constituting a pair of of a shielding cavity
Cover, this is fixed in the first, second shielded layer connector to the first, second shielded layer connector is respectively equipped on the outside of shielding case
First, second core wire connector, this to be equipped in shielding case multiple ground wire capacitances and a two poles of the earth respectively with described first, the
The connected signal capacitance of two core wire connectors；
The ground wire capacitance is no lead capacitance or patch capacitor；
The two poles of the earth of the ground wire capacitance are in its rear and front end, and respectively with described one in such a way that tin cream is through Reflow Soldering
It is weldingly connected to shielding case；
Multiple through-holes are symmetrically arranged on a pair of of shielding case；A pair of of shielding case is respectively large and small shielding case；Smaller screen
The open end for covering cover is protruded into the opening of the big shielding case；
The signal capacitance is no lead capacitance or patch capacitor；
The two poles of the earth of the signal capacitance are in its rear and front end, and respectively with described in such a way that tin cream is through Reflow Soldering
One, the inner end of the second core wire connector is connected；
The two poles of the earth of each ground wire capacitance are weldingly connected with the through-hole on a pair of of shielding case respectively.
2. antenna isolator according to claim 1, it is characterised in that: the first, second core wire connector coaxial line point
Cloth or vertical distribution.
3. antenna isolator according to claim 1, it is characterised in that: the through-hole on a pair of of shielding case is set to phase
The pit center answered.
4. antenna isolator according to claim 1, it is characterised in that: be equipped between the large and small shielding case for solid
Each ground wire capacitance and signal capacitance, using mounting rack made of insulating materials.
5. antenna isolator according to claim 4, it is characterised in that: the outer rim of the neighbouring mounting rack is equipped with slot,
The edge part of the small shielding case is plugged and fixed in the slot；The big shielding enclosure is located in the outer rim of the mounting rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610682982.6A CN106210595B (en) | 2012-11-22 | 2012-11-22 | For ensuring the antenna isolator of high-frequency signal transmission quality |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210480620.0A CN103248857B (en) | 2012-11-22 | 2012-11-22 | antenna isolator |
| CN201610682982.6A CN106210595B (en) | 2012-11-22 | 2012-11-22 | For ensuring the antenna isolator of high-frequency signal transmission quality |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210480620.0A Division CN103248857B (en) | 2012-11-22 | 2012-11-22 | antenna isolator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106210595A CN106210595A (en) | 2016-12-07 |
| CN106210595B true CN106210595B (en) | 2018-12-07 |
Family
ID=48928049
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610682982.6A Expired - Fee Related CN106210595B (en) | 2012-11-22 | 2012-11-22 | For ensuring the antenna isolator of high-frequency signal transmission quality |
| CN201210480620.0A Expired - Fee Related CN103248857B (en) | 2012-11-22 | 2012-11-22 | antenna isolator |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210480620.0A Expired - Fee Related CN103248857B (en) | 2012-11-22 | 2012-11-22 | antenna isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN106210595B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109561616B (en) * | 2019-01-17 | 2024-02-06 | 珠海迈科智能科技股份有限公司 | RF head configuration method and RF head |
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| CN1090951A (en) * | 1992-11-25 | 1994-08-17 | 汤姆森消费电子有限公司 | The antenna isolation assembly of hot chassis receiver |
| CN2257425Y (en) * | 1995-06-22 | 1997-07-02 | 陈艺通 | Anti-lightning stroke protector for wire television |
| JP2003224930A (en) * | 2002-01-25 | 2003-08-08 | Maspro Denkoh Corp | Protector |
| CN2896749Y (en) * | 2006-03-20 | 2007-05-02 | 邱舒溢 | TV-set anti-interference circuit |
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| EP1148602B1 (en) * | 2000-04-20 | 2003-11-26 | Siemens Aktiengesellschaft | Overvoltage arrester device |
| JP2009218635A (en) * | 2008-03-06 | 2009-09-24 | Dx Antenna Co Ltd | Relay amplifier for cooperative reception system, and input adjustment unit thereof |
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- 2012-11-22 CN CN201610682982.6A patent/CN106210595B/en not_active Expired - Fee Related
- 2012-11-22 CN CN201210480620.0A patent/CN103248857B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1090951A (en) * | 1992-11-25 | 1994-08-17 | 汤姆森消费电子有限公司 | The antenna isolation assembly of hot chassis receiver |
| CN2257425Y (en) * | 1995-06-22 | 1997-07-02 | 陈艺通 | Anti-lightning stroke protector for wire television |
| JP2003224930A (en) * | 2002-01-25 | 2003-08-08 | Maspro Denkoh Corp | Protector |
| CN2896749Y (en) * | 2006-03-20 | 2007-05-02 | 邱舒溢 | TV-set anti-interference circuit |
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| CN201142718Y (en) * | 2007-12-21 | 2008-10-29 | 康佳集团股份有限公司 | Feeder line isolating circuit |
| CN101340543A (en) * | 2008-08-08 | 2009-01-07 | 上海广电电器有限公司 | Anti-flame separation coupler special for television having 3 core electric power plug |
| CN201278411Y (en) * | 2008-08-13 | 2009-07-22 | 中兴通讯股份有限公司 | Ethernet connector with lightning protection function |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN103248857B (en) | 2016-09-07 |
| CN106210595A (en) | 2016-12-07 |
| CN103248857A (en) | 2013-08-14 |
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Granted publication date: 20181207 |