CN102761118B - A kind of lightning protection method and apparatus of exempting from ground connection communicator of equipotential link - Google Patents
A kind of lightning protection method and apparatus of exempting from ground connection communicator of equipotential link Download PDFInfo
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- CN102761118B CN102761118B CN201210286828.9A CN201210286828A CN102761118B CN 102761118 B CN102761118 B CN 102761118B CN 201210286828 A CN201210286828 A CN 201210286828A CN 102761118 B CN102761118 B CN 102761118B
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Abstract
The invention discloses one and exempt from ground connection communicator apparatus for preventing thunderbolt and method, telephone wire protection module is accessed between communicator and holding wire, power source protective module is accessed between communicator and power module, signal end protection module comprises three pole gas discharge tube G2, the two poles of the earth, outside of three pole gas discharge tube G2 are connected on signal end interface respectively, power source protective module comprises piezo-resistance TMOV1, piezo-resistance TMOV2 and gas discharge tube G1, be attempted by power module after piezo-resistance TMOV1 and piezo-resistance TMOV2 series connection, one pin of gas discharge tube G1 is connected between two piezo-resistances, another pin connects three pole gas discharge tube G2 interpoles.The present invention is designed to equipotential link to the power port of communicator, signal port, solves in the situation of no ground of this locality, the common and different mode protection question of communication device signal inlet wire side and power supply.
Description
Technical field
The present invention relates to the lightning protection of the communicator of the Signal transmissions in the Internet, conversion, particularly communicator.
Background technology
The ADSL terminal lightning protection of traditional approach mainly relies on the discharge tube of the ADSL telephone wire inlet wire side arranged in terminal equipment and isolating transformer to carry out differential mode, common mode protection respectively.From ADSL terminal practical using result, after thunderstorm, terminal damage quantity is multiplied, and broken by lightning ratio reaches protects more than 30% of outer maintenance capacity.Economize the maintaining unit incomplete statistics of fixed network operator according to certain, after going out to protect, ADSL terminal in October, 2011 ~ 2012 broken by lightning number in year March is 37563.Now general effective lightning protection measures is direct ground connection, but when user Internet access broadband, for each ADSL terminal goes to carry out special ground connection work, its difficulty and cost are very large.So how the simple and effective lightning protection capability improving ADSL terminal just seems very important.Equally identical Lightning Protection is also existed for the communicator similar with ADSL terminal.
Summary of the invention
the object of the invention is in order to can easy, economical, efficiently solve the problem that numerous broadband users' communicator suffers lightning damage, a kind of lightning protection method and apparatus of exempting from ground connection communicator of equipotential link is provided.
In order to achieve the above object, the present invention is by the following technical solutions:
A kind of equipotential link exempt from ground connection communicator apparatus for preventing thunderbolt, comprise power source protective module and signal end protection module, signal end protection module comprises three pole gas discharge tube G2, the two poles of the earth, outside of three pole gas discharge tube G2 are connected on signal end interface RJ11 respectively, described power source protective module comprises by piezo-resistance TMOV1, the monophase equilibrium circuit that piezo-resistance TMOV2 and gas discharge tube G1 forms, be attempted by between the phase line L of power module and neutral line N after piezo-resistance TMOV1 and piezo-resistance TMOV2 series connection, one pin of gas discharge tube G1 is connected between two piezo-resistances, another pin connects three pole gas discharge tube G2 interpoles.
Described signal end protection module also comprises differential mode protective circuit; differential mode protective circuit is made up of resistance R1, resistance R2 and solid discharging tube SAD; resistance R1, R2 are connected on signal end interface RJ11 respectively; three pole gas discharge tube G2 are attempted by resistance R1, R2 front end, and solid discharging tube SAD is attempted by resistance R1, R2 rear end.
Described communicator is ADSL terminal, and described signal end protection module is telephone wire protection module, and described signal end interface RJ11 is telephone line interface RJ11.
Described power source protective module also comprises the working indicating be made up of resistance R0, diode D1, light-emitting diode L1 and inductance L 0.
A kind of equipotential link exempt from ground connection communicator lightning protection method, signal end protection module is accessed between communicator and signal input line, power source protective module is accessed between communicator and power module, signal end protection module comprises three pole gas discharge tube G2, the two poles of the earth, outside of three pole gas discharge tube G2 are connected on signal end interface RJ11 respectively, described power source protective module comprises by piezo-resistance TMOV1, the monophase equilibrium circuit that piezo-resistance TMOV2 and gas discharge tube G1 forms, be attempted by between the phase line L of power module and neutral line N after piezo-resistance TMOV1 and piezo-resistance TMOV2 series connection, one pin of gas discharge tube G1 is connected between two piezo-resistances, another pin connects three pole gas discharge tube G2 interpoles.
Described signal end protection module also comprises differential mode protective circuit; differential mode protective circuit is made up of resistance R1, resistance R2 and solid discharging tube SAD; resistance R1, R2 are connected on signal end interface RJ11 respectively; three pole gas discharge tube G2 are attempted by resistance R1, R2 front end, and solid discharging tube SAD is attempted by resistance R1, R2 rear end.
Described communicator is ADSL terminal, and described signal input line is telephone wire, and described signal end protection module is telephone wire protection module, and described signal end interface RJ11 is telephone line interface RJ11.
Described power source protective module also comprises the working indicating be made up of resistance R0, diode D1, light-emitting diode L1 and inductance L 0.
Equipment of the present invention or method can form modular guard to communicator, and power port and signal port are designed to equipotential link.Solve in the situation of no ground of this locality, the common and different mode protection question of signal end inlet wire side and power supply, improves common and different mode protective capacities.The telephone wire side common mode protective capacities of ADSL terminal is promoted to more than 20KV, and through-current capacity is greater than 5KA, and export residual voltage lower than 1.5KV, available protecting ADSL terminal is not damaged.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the embodiment of the present invention 1.
Fig. 2 is the schematic diagram of the embodiment of the present invention 2.
Embodiment
Embodiment 1
As Fig. 1, a kind of equipotential link exempt from ground connection communicator apparatus for preventing thunderbolt, comprise power source protective module and signal end protection module, signal end protection module comprises three pole gas discharge tube G2, the two poles of the earth, outside of three pole gas discharge tube G2 are connected on signal end interface RJ11 respectively, this composition first order differential mode protective circuit, also has second level differential mode protective circuit, by resistance R1, resistance R2 and solid discharging tube SAD forms, resistance R1, R2 is connected on signal end interface RJ11 respectively, three pole gas discharge tube G2 are attempted by resistance R1, R2 front end, solid discharging tube SAD is attempted by resistance R1, R2 rear end.The signal input part voltage of two-stage differential mode protective circuit to communicator carries out clamper, plays a protective role.
Power source protective module comprises the monophase equilibrium circuit be made up of piezo-resistance TMOV1, piezo-resistance TMOV2 and gas discharge tube G1; be attempted by between the phase line L of power module and neutral line N after piezo-resistance TMOV1 and piezo-resistance TMOV2 series connection; one pin of gas discharge tube G1 is connected between two piezo-resistances, and another pin connects three pole gas discharge tube G2 interpoles.Gas discharge tube G1 and three pole gas discharge tube G2 forms common mode protection circuit, the equipotential link between the signal inlet wire realizing power line and communicator.Such common mode thunder-strike current passes through gas discharge tube G1, piezo-resistance TMOV1 or the piezo-resistance TMOV2 of power source protective module, and distally the neutral earthing end of power transformer is released.
A kind of equipotential link exempt from ground connection communicator lightning protection method, signal end protection module is accessed between communicator and signal input line, power source protective module is accessed between communicator and power module, signal end protection module comprises three pole gas discharge tube G2, the two poles of the earth, outside of three pole gas discharge tube G2 are connected on signal end interface RJ11 respectively, power source protective module comprises by piezo-resistance TMOV1, the monophase equilibrium circuit that piezo-resistance TMOV2 and gas discharge tube G1 forms, be attempted by between the phase line L of power module and neutral line N after piezo-resistance TMOV1 and piezo-resistance TMOV2 series connection, one pin of gas discharge tube G1 is connected between two piezo-resistances, another pin connects three pole gas discharge tube G2 interpoles.
When not running into thunderbolt; communicator normally uses; the signal of signal end is equivalent to direct bypass signal end protection module; three pole gas discharge tube G2 and solid discharging tube SAD are in open-circuit condition; signal directly through resistance R1, R2 out; enter in communicator, now three pole gas discharge tube G2 and solid discharging tube SAD play the effect of differential mode protection.
Power end is to skip power source protective module equally, and communicator is directly received on 220V power supply by power supply adaptor.Now gas discharge tube G1 is in open-circuit condition.
When suffering from thunderbolt, thunderbolt voltage is excessive, three pole gas discharge tube G2 and gas discharge tube G1 are punctured, make three pole gas discharge tube G2 and gas discharge tube G1 conducting, thunder-strike current is just by three pole gas discharge tube G2, gas discharge tube G1, piezo-resistance TMOV1 or piezo-resistance TMOV2, and distally the neutral earthing end of power transformer is released.
The present embodiment is in use without the need to carrying out special grounding construction by communicator; but the end of incoming cables of communicator and power end are all coupled together by gas discharge tube; carry out common mode protection; realize the equipotential link between power line and communication device signal inlet wire; and be all connected on the neutral earthing end of far-end power transformer; so no matter that power end or signal end of incoming cables are when producing thunder-strike current; can be released by the earth terminal of far-end power transformer smoothly and drain, thus play effective protective effect.
In addition, power source protective module also comprises the working indicating be made up of resistance R0, diode D1, light-emitting diode L1 and inductance L 0.Under normal circumstances, the light-emitting diode L1 of working indicating is bright, when breaking down, piezo-resistance TMOV1 and piezo-resistance TMOV2 lost efficacy, and electric current is no longer through light-emitting diode L1, and light-emitting diode L1 does not just work, represent that this thunder resisting equipment lost efficacy, need to change.
Embodiment 2
As Fig. 2, communicator is changed into ADSL terminal, signal input line is telephone wire, and signal end protection module is telephone wire protection module, and signal end interface RJ11 is telephone line interface RJ1.All the other whole principles are identical with embodiment 1 with structure.
Telephone wire protection module is accessed between ADSL terminal and telephone wire, power source protective module is accessed between ADSL terminal and power module, telephone wire protection module comprises three pole gas discharge tube G2, the two poles of the earth, outside of three pole gas discharge tube G2 are connected on telephone line interface RJ11 respectively, power source protective module comprises by piezo-resistance TMOV1, the monophase equilibrium circuit that piezo-resistance TMOV2 and gas discharge tube G1 forms, be attempted by between the phase line L of power module and neutral line N after piezo-resistance TMOV1 and piezo-resistance TMOV2 series connection, one pin of gas discharge tube G1 is connected between two piezo-resistances, another pin connects three pole gas discharge tube G2 interpoles.
When not running into thunderbolt; ADSL terminal normally uses; the signal of phone line end is equivalent to directly skip telephone wire protection module; three pole gas discharge tube G2 and solid discharging tube SAD are in open-circuit condition; signal directly through resistance R1, R2 out; enter in ADSL terminal, now three pole gas discharge tube G2 and solid discharging tube SAD play the effect of differential mode protection.
Power end is to skip power source protective module equally, and ADSL terminal is directly received on 220V power supply by power supply adaptor.Now gas discharge tube G1 is in open-circuit condition.
When suffering from thunderbolt, thunderbolt voltage is excessive, three pole gas discharge tube G2 and gas discharge tube G1 are punctured, make three pole gas discharge tube G2 and gas discharge tube G1 conducting, thunder-strike current is just by three pole gas discharge tube G2, gas discharge tube G1, piezo-resistance TMOV1 or piezo-resistance TMOV2, and distally the neutral earthing end of power transformer is released.
Claims (4)
1. an equipotential link exempt from ground connection communicator apparatus for preventing thunderbolt, it is characterized in that, comprise power source protective module and signal end protection module, signal end protection module comprises three pole gas discharge tube G2, the two poles of the earth, outside of three pole gas discharge tube G2 are connected on signal end interface RJ11 respectively, described power source protective module comprises by piezo-resistance TMOV1, the monophase equilibrium circuit that piezo-resistance TMOV2 and gas discharge tube G1 forms, be attempted by between the phase line L of power module and neutral line N after piezo-resistance TMOV1 and piezo-resistance TMOV2 series connection, one pin of gas discharge tube G1 is connected between two piezo-resistances, another pin connects three pole gas discharge tube G2 interpoles, described signal end protection module also comprises differential mode protective circuit, differential mode protective circuit is by resistance R1, resistance R2 and solid discharging tube SAD forms, resistance R1, R2 is connected on signal end interface RJ11 respectively, three pole gas discharge tube G2 are attempted by resistance R1, R2 front end, solid discharging tube SAD is attempted by resistance R1, R2 rear end.
2. a kind of equipotential link according to claim 1 exempt from ground connection communicator apparatus for preventing thunderbolt; it is characterized in that; described communicator is ADSL terminal, and described signal end protection module is telephone wire protection module, and described signal end interface RJ11 is telephone line interface RJ11.
3. an equipotential link exempt from ground connection communicator lightning protection method, it is characterized in that, signal end protection module is accessed between communicator and signal input line, power source protective module is accessed between communicator and power module, signal end protection module comprises three pole gas discharge tube G2, the two poles of the earth, outside of three pole gas discharge tube G2 are connected on signal end interface RJ11 respectively, described power source protective module comprises by piezo-resistance TMOV1, the monophase equilibrium circuit that piezo-resistance TMOV2 and gas discharge tube G1 forms, be attempted by between the phase line L of power module and neutral line N after piezo-resistance TMOV1 and piezo-resistance TMOV2 series connection, one pin of gas discharge tube G1 is connected between two piezo-resistances, another pin connects three pole gas discharge tube G2 interpoles, described signal end protection module also comprises differential mode protective circuit, differential mode protective circuit is by resistance R1, resistance R2 and solid discharging tube SAD forms, resistance R1, R2 is connected on signal end interface RJ11 respectively, three pole gas discharge tube G2 are attempted by resistance R1, R2 front end, solid discharging tube SAD is attempted by resistance R1, R2 rear end.
4. a kind of equipotential link according to claim 3 exempt from ground connection communicator lightning protection method; it is characterized in that; described communicator is ADSL terminal; described signal input line is telephone wire; described signal end protection module is telephone wire protection module, and described signal end interface RJ11 is telephone line interface RJ11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210286828.9A CN102761118B (en) | 2012-07-27 | 2012-08-13 | A kind of lightning protection method and apparatus of exempting from ground connection communicator of equipotential link |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210265027.4 | 2012-07-27 | ||
| CN2012102650274 | 2012-07-27 | ||
| CN201210265027 | 2012-07-27 | ||
| CN201210286828.9A CN102761118B (en) | 2012-07-27 | 2012-08-13 | A kind of lightning protection method and apparatus of exempting from ground connection communicator of equipotential link |
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| CN102761118A CN102761118A (en) | 2012-10-31 |
| CN102761118B true CN102761118B (en) | 2015-09-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103094894B (en) * | 2013-01-25 | 2016-04-27 | 南通天地通网络工程有限公司 | Arrester of high-frequency transmission line |
| CN105048417B (en) * | 2015-08-02 | 2017-10-27 | 来安县新元机电设备设计有限公司 | A kind of voltage protection circuit and device |
| CN105958458A (en) * | 2016-06-07 | 2016-09-21 | 杭州世永电力科技有限公司 | Three-phase power signal sharing surge protector |
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| US6282075B1 (en) * | 1999-03-10 | 2001-08-28 | Tii Industries, Inc. | Surge suppressor with virtual ground |
| CN2569411Y (en) * | 2002-08-14 | 2003-08-27 | 李锦添 | Lightning protector |
| CN2798388Y (en) * | 2005-05-24 | 2006-07-19 | 四川中光高技术研究所有限责任公司 | Electric source signal combined lightning protector |
| CN202797961U (en) * | 2012-07-27 | 2013-03-13 | 中国电信集团浙江省电信公司 | Lightening protection device of grounding-free communication device with equipotential connection |
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2012
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Patent Citations (4)
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|---|---|---|---|---|
| US6282075B1 (en) * | 1999-03-10 | 2001-08-28 | Tii Industries, Inc. | Surge suppressor with virtual ground |
| CN2569411Y (en) * | 2002-08-14 | 2003-08-27 | 李锦添 | Lightning protector |
| CN2798388Y (en) * | 2005-05-24 | 2006-07-19 | 四川中光高技术研究所有限责任公司 | Electric source signal combined lightning protector |
| CN202797961U (en) * | 2012-07-27 | 2013-03-13 | 中国电信集团浙江省电信公司 | Lightening protection device of grounding-free communication device with equipotential connection |
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