CN103248857A - Antenna isolator - Google Patents
Antenna isolator Download PDFInfo
- Publication number
- CN103248857A CN103248857A CN2012104806200A CN201210480620A CN103248857A CN 103248857 A CN103248857 A CN 103248857A CN 2012104806200 A CN2012104806200 A CN 2012104806200A CN 201210480620 A CN201210480620 A CN 201210480620A CN 103248857 A CN103248857 A CN 103248857A
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- pair
- capacitance
- radome
- ground wire
- antenna isolator
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Links
- 238000005476 soldering Methods 0.000 claims abstract description 20
- 239000003990 capacitor Substances 0.000 claims abstract description 13
- 238000003466 welding Methods 0.000 claims abstract description 7
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 10
- 239000006071 cream Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract 4
- 238000010923 batch production Methods 0.000 abstract 2
- 239000012530 fluid Substances 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 8
- 210000005069 ears Anatomy 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
Images
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 invention relates to an antenna isolator which is characterized by comprising a pair of shielding cases forming a shielding cavity, wherein a first shielding layer connector and a second shielding layer connector are arranged on the outside of each shielding case; a first core wire connector and a second core wire connector are fixedly arranged inside the first shielding layer connector and the second shielding layer connector; a plurality of ground wire blocking capacitors and a signal blocking capacitor which is connected with the first core wire connector and the second core wire connector respectively are arranged inside each shielding case; and the ground wire blocking capacitors are leadless or chip capacitors; two poles of each ground wire blocking capacitor are welded with the pair of the shielding cases through fluid welding respectively. According to the antenna isolator, the capacitors are leadless or chip capacitors, the line loss is small, the high frequency characteristic of a transmission signal can be guaranteed, at the same time, reflow soldering is facilitated, manual welding is not needed, and the antenna isolator is suitable for batch production, so that effects of higher batch production efficiency, lower cost and better product consistency are achieved; and shielding cases can adopt stamping parts, A PCB is not required in the whole product, an original plug-in unit and manual welding are not required, and the product consistency can be easily guaranteed.
Description
Technical field
The present invention relates to the additional device of television set, specifically a kind of antenna isolator, the transmission quality for ensuring high-frequency signal.
Background technology
The ground connection of cable TV be usually and power supply be connected together, and cable television system output TV signal ground connection usually set top box metal shell, so when their current potential is unequal（Such as outside TV signal cable is struck by lightning or is short-circuited accident with external power circuit）, electric current will flow to low potential point from high potential point, produce interference even cable TV heating or cable TV spontaneous combustion.To solve this problem, it has been proposed that installing capacitance additional between cable television system signal output terminal and the signal input terminal of cable TV, to isolate both grounds and keep the unimpeded of signal connection, cable television system signal output terminal cored wire (signal wire) and cable TV signal input terminal cored wire (signal wire) between install a 2200pF or 1000pF signal capacitance additional, cable television system signal output terminal the screen layer TV signal ground wire of output (cable television system) and cable TV signal input terminal screen layer (ground wire of cable TV) between install a 2200pF or 1000pF ground wire capacitance additional.
Chinese patent literature CN 202364309U, a kind of television antenna isolator is disclosed, it has housing, circuit board, the first coaxial slicing ear and the second coaxial slicing ear that can be plugged with cable television system signal output terminal can be plugged with the signal input terminal of cable TV；The circuit board is arranged in the housing, and two axle connection terminals are separately mounted on the side wall of the housing；Signal capacitance is serially connected between the cored wire of two coaxial slicing ears on the circuit board；Three ground wire capacitances are parallel with one another on the circuit board and are serially connected between the front side of the screen layer of two coaxial slicing ears；The other three ground wire capacitance is parallel with one another on the circuit board and is serially connected between the rear side of the screen layer of two coaxial slicing ears.
It is in place of above-mentioned the deficiencies in the prior art：The connection of circuit board and each electric capacity uses human weld, and mass production is less efficient and cost is higher, and it is poor that human weld is easily caused homogeneity of product；Small product size is big, is unfavorable for being directly installed in television set.
The content of the invention
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 the preferable antenna isolator of homogeneity of product.
In order to solve the above technical problems, the invention provides a kind of antenna isolator, it includes：Openend is oppositely arranged, a pair of radomes to constitute a shielding cavity, first, second screen layer joint is respectively equipped with the outside of this pair of radome, the signal capacitance being connected respectively with the first, second cored wire joint provided with multiple ground wire capacitances and a two poles of the earth in first, second cored wire joint, this pair of radome is fixed with first, second screen layer joint；The ground wire capacitance is without lead capacitance or patch capacitor；The two poles of the earth of the ground wire capacitance are in its rear and front end, and are weldingly connected respectively with a pair of described radomes by the way of tin cream is through Reflow Soldering.
The signal capacitance is without lead capacitance or patch capacitor；The two poles of the earth of the signal capacitance are in its rear and front end, and medial extremity respectively with the first, second cored wire joint by the way of tin cream is through Reflow Soldering is connected.
The first, second cored wire joint coaxial line distribution, so that the medial extremity of the first, second cored wire joint is welded with the two poles of the earth of signal capacitance using Reflow Soldering.Or, the first, second cored wire joint vertical distribution, the inner metal line of first, second cored wire joint is welded with the two poles of the earth of signal capacitance using Reflow Soldering.
Be arranged with multiple through holes on Reflow Soldering, a pair of described radomes for ease of using；The two poles of the earth of each ground wire capacitance are weldingly connected with the through hole on a pair of described radomes respectively.
Through hole on the large and small radome is located at corresponding pit center, to be further beneficial to, in assembling, two electrodes of each electric capacity be connected with the mounting hole on large and small radome respectively using tin cream, Reflow Soldering is then carried out.
To improve shield effectiveness, assembling respectively, a pair of described radomes are respectively large and small radome；The openend of small radome is stretched into the opening of the big radome.
Be provided between the large and small radome be used for it is fixed described in each ground wire capacitance and signal capacitance, the mounting bracket being made from an insulative material is adopted, so that in assembling, each electric capacity is loaded into mounting bracket, beneficial to improving efficiency of assembling and reliability.
The outer rim of the neighbouring mounting bracket is provided with slot; the edge part grafting of the small radome is fixed in the slot; the big shielding enclosure is located in the outer rim of the mounting bracket; and then secure large and small radome and mounting bracket; and then before Reflow Soldering is implemented; each part is just secured, beneficial to ensuring the reliability of Reflow Soldering, and then beneficial to ensureing homogeneity of product.
In a ring or rectangle, the mounting bracket in the large and small radome doubles as the insulation between large and small radome to the large and small radome, and radome is externally provided with plastic safety cover.
The production method of above-mentioned antenna isolator, it is characterised in that comprise the following steps：
（1）, on two electrodes of each electric capacity or on each through hole of a pair of described radomes tin cream is fixedly installed；
（2）, a pair of described radome levels are oppositely arranged, and each ground wire capacitance is respectively arranged between multigroup relative through hole on the large and small radome, by the signal capacitance on the medial extremity of the screen layer joint；
（3）, feeding reflow soldering apparatus, complete welding；
（4）, on a pair of described radomes insulating protective cover is set respectively.
As preferred embodiment, the step（2）In, before a pair of described radome levels are oppositely arranged, also include：Mounting bracket is set between a pair of described radomes, then each ground wire capacitance and signal capacitance are put into the mounting hole of the mounting bracket, while the edge part grafting of the small radome is fixed in the slot of the mounting bracket.
The technique effect that the present invention has：（1）The electric capacity that the antenna isolator of the present invention is used is all for without lead capacitance or patch capacitor, line loss is few, it can ensure that the high frequency characteristics of transmission signal, simultaneously beneficial to implementation Reflow Soldering, without human weld, suitable for mass production, and then reach that mass production efficiency is higher, cost is relatively low and the preferable effect of homogeneity of product；（2）The large and small radome can use stamping parts, and whole product, without plug-in unit original paper, manual welding, easily ensures homogeneity of product without pcb board；Meanwhile, the cavity of large and small radome formation is smaller, and shield effectiveness is preferable；（3）Product overall volume is smaller, and overall structure is stronger, is hardly damaged and is suitable for place into television set.
Brief description of the drawings
In order that present disclosure is more likely to be clearly understood, below according to specific embodiment and with reference to accompanying drawing, the present invention is further detailed explanation, wherein
Fig. 1 is the sectional structure chart of the I type antenna isolators of the present invention；
Fig. 2 is the longitudinal sectional structure chart in center of Fig. 1 I type antenna isolators；
Fig. 3 be Fig. 1 in I type antenna isolators right view；
Fig. 4 is the sectional structure chart of the inverted-L antenna isolator of the present invention；
Fig. 5 is Fig. 4 A-A sectional structure charts；
Fig. 6 is Fig. 4 top view；
Fig. 7 is Fig. 5 left view.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the present invention is described in detail：
Embodiment 1：
Such as Fig. 1 to 3, the antenna isolator of the present embodiment is I types, and it includes：The large and small radome that openend is oppositely arranged, the openend of small radome 5 is stretched into the opening of the big radome 3；First screen layer joint 9, secondary shielding layer joint 10 are respectively equipped with the outside of large and small radome, it is fixed with first, second screen layer joint in the first cored wire joint 6, the second cored wire joint 2 of coaxial line distribution, large and small radome and is provided with multiple ground wire capacitances 8 and a signal capacitance 1；Multiple through holes are arranged with large and small radome.Each through hole is located at corresponding pit center.
The ground wire capacitance 8 and signal capacitance 1 are without lead capacitance or patch capacitor；The two poles of the earth of the ground wire capacitance 8 are in its rear and front end, and are weldingly connected respectively with the through hole on the large and small radome by the way of tin cream 14 is through Reflow Soldering.
The two poles of the earth of the signal capacitance 1 are in its rear and front end, and medial extremity respectively with the first, second cored wire joint by the way of tin cream is through Reflow Soldering is connected.
The large and small radome in a ring, plastic safety cover is respectively equipped with the large and small radome.
It is used for the mounting bracket 7 of each ground wire capacitance and signal capacitance described in fixation as a kind of preferred embodiment, between the large and small radome be provided with.The outer rim of the neighbouring mounting bracket 7 is provided with slot, and the edge part grafting of the small radome 5 is fixed in the slot, beneficial to fixed small radome 5.Meanwhile, the big radome 3, which is fixed, to be set in the outer rim of the mounting bracket 7, and then secures large and small radome and mounting bracket 7; and then before Reflow Soldering is implemented; each part is just secured, beneficial to ensuring the reliability of Reflow Soldering, and then beneficial to ensureing homogeneity of product.
Embodiment 2：
The production method of the I type antenna isolators of above-described embodiment 1, it comprises the following steps：
A, on two electrodes of each electric capacity or the mounting hole of large and small radome, or on multigroup relative through hole on the large and small radome tin cream is set；
B, the first, second cored wire joint are fixed in first, second screen layer joint by collets 12 respectively, meanwhile, the medial extremity of first, second screen layer joint is distinguished into secure fit in the mounting hole of the large and small radome；
C, the large and small radome level is oppositely arranged, and each ground wire capacitance is respectively arranged between multigroup relative through hole on the large and small radome, by the signal capacitance between the medial extremity of the first, second screen layer joint；
D, feeding reflow soldering apparatus, complete welding；
E, plastic insulation protective cover 4 is set respectively on large and small radome.
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, i.e., described first, second cored wire joint vertical distribution, the medial extremity of first, second cored wire joint is welded by the two poles of the earth of metal wire and signal capacitance using Reflow Soldering respectively.
Embodiment 4：
The antenna isolator of one of above-described embodiment 1 to 3, the application on used as television tuner, or the application on network cable isolator, or the application on RJ45 interfaces or RJ45 type network card interfaces.
The present embodiment it is obvious, above-described embodiment is only intended to clearly illustrate example of the present invention, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, it can also make other changes in different forms on the basis of the above description.There is no necessity and possibility to exhaust all the enbodiments.And among the obvious change or variation that these spirit for belonging to the present invention are extended out are still in protection scope of the present invention.
Claims (10)
1. a kind of antenna isolator, it is characterised in that including：Openend is oppositely arranged, a pair of radomes to constitute a shielding cavity, first, second screen layer joint is respectively equipped with the outside of this pair of radome, the signal capacitance being connected respectively with the first, second cored wire joint provided with multiple ground wire capacitances and a two poles of the earth in first, second cored wire joint, this pair of radome is fixed with first, second screen layer joint；
The ground wire capacitance is without lead capacitance or patch capacitor；
The two poles of the earth of the ground wire capacitance are in its rear and front end, and are weldingly connected respectively with a pair of described radomes by the way of tin cream is through Reflow Soldering.
2. antenna isolator according to claim 1, it is characterised in that：The signal capacitance is without lead capacitance or patch capacitor；
The two poles of the earth of the signal capacitance are in its rear and front end, and medial extremity respectively with the first, second cored wire joint by the way of tin cream is through Reflow Soldering is connected.
3. antenna isolator according to claim 2, it is characterised in that：The first, second cored wire joint coaxial line distribution, or vertical distribution.
4. antenna isolator according to claim 1, it is characterised in that：Multiple through holes are arranged with a pair of described radomes；The two poles of the earth of each ground wire capacitance are weldingly connected with the through hole on a pair of described radomes respectively.
5. antenna isolator according to claim 4, it is characterised in that：Through hole on a pair of described radomes is located at corresponding pit center.
6. tuner component according to claim 1, it is characterised in that：A pair of described radomes are respectively large and small radome；The openend of small radome is stretched into the opening of the big radome.
7. the antenna isolator according to one of claim 1-6, it is characterised in that：Be provided between the large and small radome be used for it is fixed described in each ground wire capacitance and signal capacitance, adopt the mounting bracket being made from an insulative material.
8. antenna isolator according to claim 7, it is characterised in that：The outer rim of the neighbouring mounting bracket is provided with slot, and the edge part grafting of the small radome is fixed in the slot；The big shielding enclosure is located in the outer rim of the mounting bracket.
9. the production method of a kind of antenna isolator according to one of claim 1-6, it is characterised in that comprise the following steps：
（1）, on two electrodes of each electric capacity or on each through hole of a pair of described radomes tin cream is fixedly installed；
（2）, a pair of described radome levels are oppositely arranged, and each ground wire capacitance is respectively arranged between multigroup relative through hole on the large and small radome, by the signal capacitance on the medial extremity of the screen layer joint；
（3）, feeding reflow soldering apparatus, complete welding；
（4）, on a pair of described radomes insulating protective cover is set respectively.
10. the production method of antenna isolator according to claim 9, it is characterised in that：The step（2）In, before a pair of described radome levels are oppositely arranged, also include：Mounting bracket is set between a pair of described radomes, then each ground wire capacitance and signal capacitance are put into the mounting hole of the mounting bracket.
Priority Applications (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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210480620.0A CN103248857B (en) | 2012-11-22 | 2012-11-22 | antenna isolator |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610682982.6A Division CN106210595B (en) | 2012-11-22 | 2012-11-22 | For ensuring the antenna isolator of high-frequency signal transmission quality |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103248857A true CN103248857A (en) | 2013-08-14 |
| CN103248857B CN103248857B (en) | 2016-09-07 |
Family
ID=48928049
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210480620.0A Expired - Fee Related CN103248857B (en) | 2012-11-22 | 2012-11-22 | antenna isolator |
| CN201610682982.6A Expired - Fee Related CN106210595B (en) | 2012-11-22 | 2012-11-22 | For ensuring the antenna isolator of high-frequency signal transmission quality |
Family Applications After (1)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN103248857B (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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201142718Y (en) * | 2007-12-21 | 2008-10-29 | 康佳集团股份有限公司 | Feeder line isolating circuit |
| JP2009218635A (en) * | 2008-03-06 | 2009-09-24 | Dx Antenna Co Ltd | Relay amplifier for cooperative reception system, and input adjustment unit thereof |
| WO2010094176A1 (en) * | 2009-02-20 | 2010-08-26 | Ye Faliang | A safety televiewing method for catv |
| CN202135244U (en) * | 2011-06-08 | 2012-02-01 | 丁兆卿 | Noise-proof and lightning-proof cable television signal distribution isolator |
| CN202918414U (en) * | 2012-11-22 | 2013-05-01 | 李明锁 | Antenna isolator |
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| US5351018A (en) * | 1992-11-25 | 1994-09-27 | Thomson Consumer Electronics, Inc. | Antenna isolation assembly for hot chassis receiver |
| CN2257425Y (en) * | 1995-06-22 | 1997-07-02 | 陈艺通 | Anti-lightning stroke protector for wire television |
| EP1148602B1 (en) * | 2000-04-20 | 2003-11-26 | Siemens Aktiengesellschaft | Overvoltage arrester device |
| 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 |
| CN100536557C (en) * | 2007-02-08 | 2009-09-02 | 莫胜林 | Anti-interference television system bidirectional user port capable of preventing creepage |
| 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 |
| CN201365304Y (en) * | 2009-03-06 | 2009-12-16 | 深圳Tcl新技术有限公司 | Isolating tuner |
| CN101764399A (en) * | 2009-12-21 | 2010-06-30 | 浙江恒丰光电技术有限公司 | Cable television signal lightning arrester |
| CN102176744A (en) * | 2011-03-25 | 2011-09-07 | 深圳市同洲电子股份有限公司 | Wired signal access circuit of digital television receiving terminal |
| CN202353701U (en) * | 2011-12-07 | 2012-07-25 | 江苏西贝电子网络有限公司 | Television socket |
| CN202364309U (en) * | 2011-12-08 | 2012-08-01 | 厦门森晖电子有限公司 | Television antenna isolator |
| CN202340290U (en) * | 2011-12-19 | 2012-07-18 | 惠州市伟乐科技有限公司 | Set top box with isolation function for digital television |
-
2012
- 2012-11-22 CN CN201210480620.0A patent/CN103248857B/en not_active Expired - Fee Related
- 2012-11-22 CN CN201610682982.6A patent/CN106210595B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201142718Y (en) * | 2007-12-21 | 2008-10-29 | 康佳集团股份有限公司 | Feeder line isolating circuit |
| JP2009218635A (en) * | 2008-03-06 | 2009-09-24 | Dx Antenna Co Ltd | Relay amplifier for cooperative reception system, and input adjustment unit thereof |
| WO2010094176A1 (en) * | 2009-02-20 | 2010-08-26 | Ye Faliang | A safety televiewing method for catv |
| CN202135244U (en) * | 2011-06-08 | 2012-02-01 | 丁兆卿 | Noise-proof and lightning-proof cable television signal distribution isolator |
| CN202918414U (en) * | 2012-11-22 | 2013-05-01 | 李明锁 | Antenna isolator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103248857B (en) | 2016-09-07 |
| CN106210595A (en) | 2016-12-07 |
| CN106210595B (en) | 2018-12-07 |
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Effective date of registration: 20160815 Address after: 213022 software park, 9 East Taihu Road, Xinbei District, Jiangsu, Changzhou A408 Applicant after: JIANGSU HUAXING ELECTRONICS CO.,LTD. Address before: 213022 software park, 9 East Taihu Road, Xinbei District, Jiangsu, Changzhou A408 Applicant before: Li Mingsuo Applicant before: Xu Zhiming |
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Address after: No.1 Workshop, private industrial park, Xuzhuang street, Gaogang District, Taizhou City, Jiangsu Province Patentee after: JIANGSU HUAXING ELECTRONICS Co.,Ltd. Address before: 213022 software park, 9 East Taihu Road, Xinbei District, Jiangsu, Changzhou A408 Patentee before: JIANGSU HUAXING ELECTRONICS Co.,Ltd. |
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Address after: 1358 Jinsha Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee after: JIANGSU HUAXING ELECTRONICS Co.,Ltd. Address before: No.1 Workshop, private industrial park, Xuzhuang street, Gaogang District, Taizhou City, Jiangsu Province Patentee before: JIANGSU HUAXING ELECTRONICS Co.,Ltd. |
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Granted publication date: 20160907 |