CN103633991A - Circuit for performing direct current voltage insulation and isolation on wired network antenna coaxial socket - Google Patents
Circuit for performing direct current voltage insulation and isolation on wired network antenna coaxial socket Download PDFInfo
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- CN103633991A CN103633991A CN201310589652.9A CN201310589652A CN103633991A CN 103633991 A CN103633991 A CN 103633991A CN 201310589652 A CN201310589652 A CN 201310589652A CN 103633991 A CN103633991 A CN 103633991A
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- radome
- receiving equipment
- coaxial socket
- network antenna
- cable network
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Abstract
The invention discloses a circuit for performing direct current voltage insulation and isolation on a wired network antenna coaxial socket. The circuit comprises the coaxial socket and a wired network antenna core wire; one end of the wired network antenna core wire is connected into the coaxial socket; a shielding cover is connected with a ground wire of the coaxial socket; the antenna core wire of receiving equipment is connected into a ground wire of first receiving equipment and is connected with the other end of the wired network antenna core wire by a first capacitor; a ground wire of the first receiving equipment and the shielding cover are connected by a second capacitor; the shielding cover and a ground wire of second receiving equipment are connected by a third capacitor. By the scheme of the invention, firstly, the core wire and ground wire of a wired network antenna are effectively isolated from those of the receiving equipment; secondly, the circuit is simple, effective and low in cost.
Description
Technical field
The present invention relates to a kind of circuit that carries out direct voltage insulation isolation to thering is the equipment of cable network antenna coaxial socket.
Background technology
Due to the particularity of China's condition of power supply, ground connection facility is perfect not, therefore requires should there be quarantine measures between cable network antenna coaxial socket and protective earthing circuit.GB8898-2011 the latest specification requires: the insulation resistance requirement of answering satisfying basic insulation between cable network antenna coaxial socket and protective earthing circuit.Traditional solution is an external antenna isolator on the antenna coaxial socket of receiving equipment, by the ground wire of cable network antenna and heart yearn and receiving equipment isolation, satisfies the demands like this, but can increase cost, is also unfavorable for the integrated of equipment.
Summary of the invention
The present invention has overcome the deficiencies in the prior art, and a kind of circuit that carries out direct voltage insulation isolation to having cable network antenna coaxial socket is provided, high for solving spacer assembly cost of the prior art, is also unfavorable for the technical problem of integration of equipments.
Consider the problems referred to above of prior art, according to an aspect disclosed by the invention, the present invention by the following technical solutions:
A circuit that cable network antenna coaxial socket is carried out to direct voltage insulation isolation, comprising:
Coaxial socket;
Cable network antenna heart yearn, described cable network antenna heart yearn one end is accessed in described coaxial socket;
Also comprise:
Radome, this radome is metal and with leg, radome is connected with coaxial socket ground; In this radome, be provided with:
The first receiving equipment ground;
Antenna of receiving device heart yearn, described antenna of receiving device heart yearn is connected with described the first receiving equipment ground, and described antenna of receiving device heart yearn passes through
The first electric capacity is connected with the described cable network antenna heart yearn other end; Described the first receiving equipment ground passes through with described radome
The second electric capacity connects;
Described radome arranged outside has:
The second receiving equipment ground, described radome and described the second receiving equipment ground pass through
The 3rd electric capacity connects.
In order to realize better the present invention, further technical scheme is:
According to one embodiment of the invention, between described radome and described the first at least unidirectional two sides, receiving equipment ground, there is at least safe separation distance of 1mm.
According to one embodiment of the invention, between described radome and described the second at least unidirectional two sides, receiving equipment ground, there is at least safe separation distance of 1mm.
According to one embodiment of the invention, in each orientation on described radome and the second receiving equipment ground, be provided with at least one electric capacity.
According to one embodiment of the invention, in described the second receiving equipment ground, comprise a cavity that holds described radome.
According to one embodiment of the invention, described radome is square, holds the cavity of described radome also for square.
According to one embodiment of the invention, between face of described cavity and a corresponding face that holds the radome in it, be provided with at least one electric capacity.
The present invention can also be:
According to one embodiment of the invention, a side of a side of described cavity and corresponding radome is provided with an electric capacity, another side of described cavity and another side of corresponding radome are provided with two electric capacity, are provided with two electric capacity between the bottom surface of described cavity and the bottom surface of described radome.
Compared with prior art, one of beneficial effect of the present invention is:
The circuit that carries out direct voltage insulation isolation to thering is the equipment of cable network antenna coaxial socket of the present invention, coaxial socket has access to spider lines antenna coaxial cable, and described radome and described coaxial socket link together; Described cable network ground wire is connected with described receiving equipment ground by high-voltage capacitance C2-C7; Described cable network antenna heart yearn is connected with antenna of receiving device heart yearn by high-voltage capacitance C1; The useful signal of cable network antenna transmission is all high-frequency signal, can effectively pass through isolation capacitance, and direct current or low frequency signal is all unwanted signal, and isolation capacitance can effectively be isolated.So just realize the transmission of cable network aerial signal, direct current and low frequency signal have been carried out to effective isolation simultaneously, protected receiving equipment;
Particularly, one has been realized effective isolation of the ground wire of cable network antenna and the ground wire of heart yearn and receiving equipment and heart yearn; Its two this circuit is simple, effective, cost is low.
Accompanying drawing explanation
For clearer explanation present specification embodiment or technical scheme of the prior art, to the accompanying drawing of required use in the description of embodiment or prior art be briefly described below, apparently, the accompanying drawing the following describes is only the reference to some embodiment in present specification, for those skilled in the art, in the situation that not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is for carrying out according to an embodiment of the invention the structural representation of the circuit of direct voltage insulation isolation to cable network antenna coaxial socket.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Fig. 1 is for carrying out according to an embodiment of the invention the structural representation of the circuit of direct voltage insulation isolation to cable network antenna coaxial socket.A kind of circuit that cable network antenna coaxial socket is carried out to direct voltage insulation isolation as shown in Figure 1, in figure, right-oblique interstitial wire region 1 represents that receiving equipment ground, left-oblique interstitial wire region 2 represent cable network antenna ground; Structure in figure comprises coaxial socket 4, cable network antenna heart yearn 3, radome 5, and cable network antenna heart yearn 3 one end are accessed in described coaxial socket 4, are attached thereto; Described radome 5 is connected with coaxial socket ground, is cable network antenna ground; In this radome 5, be provided with first receiving equipment ground the 6, first capacitor C 1, the second capacitor C 2; Described antenna of receiving device heart yearn 7 is positioned at described the first receiving equipment ground 6, and described antenna of receiving device heart yearn 7 is connected with described cable network antenna heart yearn 3 other ends by the first capacitor C 1; Between described the first receiving equipment ground 6 and described radome 5, by the second capacitor C 2, be connected.
Described radome 5 arranged outside have the second receiving equipment ground the 8, the 3rd capacitor C 3; Between described radome 5 and described the second receiving equipment ground 8, by least one the 3rd capacitor C 3, be connected.
Between described radome 5 and 6 at least unidirectional two sides, described the first receiving equipment ground, there is at least safe separation distance of 1mm, mark as shown in Figure 1 at least 1mm of 9 length radome 5 and the first receiving equipment between 6 left surfaces.
Between described radome 5 and 8 at least unidirectional two sides, described the second receiving equipment ground, there is at least safe separation distance of 1mm, mark as shown in Figure 1 at least 1mm of 10 length radome 5 and the second receiving equipment between 8 left surfaces.
In described the second receiving equipment ground 8, comprise a cavity that holds described radome 2.In each orientation on radome 5 and the second receiving equipment ground 8, be provided with at least one electric capacity.
If radome 5 is square, hold the cavity of described radome 5 also for square.Between face of described cavity and a corresponding face that holds the radome 5 in it, be provided with at least one electric capacity.Particularly, side of described cavity and a side of corresponding radome 5 are provided with an electric capacity (the 3rd capacitor C 3 of left side as shown in Figure 1), another side of described cavity and another side of corresponding radome 5 are provided with two electric capacity (the 6th capacitor C 6 of right side as shown in Figure 1, the 7th capacitor C 7), are provided with two electric capacity (the 4th capacitor C 4 as shown in Figure 1, the 5th capacitor C 5) between the bottom surface of described cavity and the bottom surface of described radome 5.
Above-mentioned electric capacity type selecting can be 10OOPF, and withstand voltage is that 2KV(capacitance can mate according to actual signal frequency), high-frequency signal is to Low ESR, and direct current and low frequency signal are to high impedance.
It should be noted that, between the 6 and second receiving equipment ground 8, above-mentioned the first receiving equipment ground, do not represent distinct, as shown in Figure 1,6 bottoms, the first receiving equipment ground and the second receiving equipment 8 tops be connected.
In addition, the electric capacity more than relating to can be arranged in PCB top layer and mask frame, equipment and be connected, and can be to be also positioned at PCB bottom.
For the scheme relating to above, with regard to part principle, further illustrate below:
1, cable network antenna is connected on the coaxial socket of receiving equipment, and the heart yearn of coaxial socket is connected to receiving equipment by capacitor C 1, and this electric capacity needs near coaxial socket.
2, the ground wire of coaxial socket and radome link together, and radome is inserted on receiving equipment, and radome is connected to the ground of receiving equipment by capacitor C 2-C7, need to have the safe spacing of 1mm.Selection about electric capacity quantity, The more the better in theory, but in fact need layout, space and product cost according to circuit board to consider, guaranteeing electrical appliance performance and safe in the situation that, generally we can select six electric capacity, and guarantee that four orientation and signal input have every earth capacitance radome up and down as far as possible.Safe spacing between two ground keeps 1mm, and object is not interfere with each other between guaranteeing differently.
In sum; the disclosed a kind of circuit that carries out D.C. isolation isolation to thering is the equipment of cable network antenna coaxial socket of above embodiment; ground wire, the heart yearn of cable network antenna coaxial socket ground wire, heart yearn and receiving equipment pass through high voltage capacitor coupling; direct current and low frequency signal are to high impedance, receiving equipment is carried out to safeguard protection.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, identical similar part cross-references between each embodiment.
" embodiment " that spoken of in this manual, " another embodiment ", " embodiment ", etc., refer to specific features, structure or the feature in conjunction with this embodiment, described and be included at least one embodiment that the application's generality describes.In specification, a plurality of local appearance statement of the same race is not necessarily to refer to same embodiment.Furthermore, while describing a specific features, structure or feature in conjunction with arbitrary embodiment, what advocate is in conjunction with other embodiment, to realize this feature, structure or feature also to fall within the scope of the invention.
Although with reference to a plurality of explanatory embodiment of the present invention, invention has been described here, but, should be appreciated that, those skilled in the art can design a lot of other modification and execution modes, and these are revised and within execution mode will drop on the disclosed principle scope and spirit of the application.More particularly, in the scope of, accompanying drawing open in the application and claim, can carry out multiple modification and improvement to the building block of subject combination layout and/or layout.Except modification that building block and/or layout are carried out with improving, to those skilled in the art, other purposes will be also obvious.
Claims (8)
1. cable network antenna coaxial socket is carried out to a circuit for direct voltage insulation isolation, comprising:
Coaxial socket;
Cable network antenna heart yearn, described cable network antenna heart yearn one end is accessed in described coaxial socket;
It is characterized in that, also comprise:
Radome, this radome is metal and with leg, radome is connected with coaxial socket ground; In this radome, be provided with:
The first receiving equipment ground;
Antenna of receiving device heart yearn, described antenna of receiving device heart yearn is connected with described the first receiving equipment ground, and described antenna of receiving device heart yearn passes through
The first electric capacity is connected with the described cable network antenna heart yearn other end; Described the first receiving equipment ground passes through with described radome
The second electric capacity connects;
Described radome arranged outside has:
The second receiving equipment ground, described radome and described the second receiving equipment ground pass through
The 3rd electric capacity connects.
2. the circuit that cable network antenna coaxial socket is carried out to direct voltage insulation isolation according to claim 1, it is characterized in that, between described radome and described the first at least unidirectional two sides, receiving equipment ground, have at least safe separation distance of 1mm.
3. the circuit that cable network antenna coaxial socket is carried out to direct voltage insulation isolation according to claim 1, it is characterized in that, between described radome and described the second at least unidirectional two sides, receiving equipment ground, have at least safe separation distance of 1mm.
4. the circuit that cable network antenna coaxial socket is carried out to direct voltage insulation isolation according to claim 1, is characterized in that, in each orientation on described radome and the second receiving equipment ground, is provided with at least one electric capacity.
5. the circuit that cable network antenna coaxial socket is carried out to direct voltage insulation isolation according to claim 1, is characterized in that, in described the second receiving equipment ground, comprises a cavity that holds described radome.
6. the circuit that cable network antenna coaxial socket is carried out to direct voltage insulation isolation according to claim 5, is characterized in that, described radome is square, holds the cavity of described radome also for square.
7. the circuit that cable network antenna coaxial socket is carried out to direct voltage insulation isolation according to claim 6, is characterized in that, between face of described cavity and a corresponding face that holds its interior radome, is provided with at least one electric capacity.
8. the circuit that cable network antenna coaxial socket is carried out to direct voltage insulation isolation according to claim 7, it is characterized in that, a side of a side of described cavity and corresponding radome is provided with an electric capacity, another side of described cavity and another side of corresponding radome are provided with two electric capacity, are provided with two electric capacity between the bottom surface of described cavity and the bottom surface of described radome.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310589652.9A CN103633991B (en) | 2013-11-20 | 2013-11-20 | Cable network antenna coaxial socket is carried out the circuit of direct current voltage insulation isolation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310589652.9A CN103633991B (en) | 2013-11-20 | 2013-11-20 | Cable network antenna coaxial socket is carried out the circuit of direct current voltage insulation isolation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103633991A true CN103633991A (en) | 2014-03-12 |
| CN103633991B CN103633991B (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310589652.9A Active CN103633991B (en) | 2013-11-20 | 2013-11-20 | Cable network antenna coaxial socket is carried out the circuit of direct current voltage insulation isolation |
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| CN (1) | CN103633991B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070238495A1 (en) * | 2005-06-28 | 2007-10-11 | Research In Motion Limited | Microphone coupler for a communication device |
| 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 |
| CN202333335U (en) * | 2011-11-23 | 2012-07-11 | 惠州市怡佳电线电缆材料有限公司 | Video socket |
| 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 |
| CN103354316A (en) * | 2012-10-24 | 2013-10-16 | 杭州祺来电子有限公司 | Tuner isolation input socket |
-
2013
- 2013-11-20 CN CN201310589652.9A patent/CN103633991B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070238495A1 (en) * | 2005-06-28 | 2007-10-11 | Research In Motion Limited | Microphone coupler for a communication device |
| 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 |
| CN202333335U (en) * | 2011-11-23 | 2012-07-11 | 惠州市怡佳电线电缆材料有限公司 | Video socket |
| 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 |
| CN103354316A (en) * | 2012-10-24 | 2013-10-16 | 杭州祺来电子有限公司 | Tuner isolation input socket |
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| Publication number | Publication date |
|---|---|
| CN103633991B (en) | 2016-09-28 |
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