CN202126462U - Passive thunder collecting connector - Google Patents

Passive thunder collecting connector Download PDF

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Publication number
CN202126462U
CN202126462U CN2011200018702U CN201120001870U CN202126462U CN 202126462 U CN202126462 U CN 202126462U CN 2011200018702 U CN2011200018702 U CN 2011200018702U CN 201120001870 U CN201120001870 U CN 201120001870U CN 202126462 U CN202126462 U CN 202126462U
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CN
China
Prior art keywords
circuit
current
thunder
limiting circuit
lightning
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 - Lifetime
Application number
CN2011200018702U
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Chinese (zh)
Inventor
陈建魁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI LEIXUN LIGHTNING PROTECTION TECHNOLOGY Co Ltd
Original Assignee
SHANGHAI LEIXUN LIGHTNING PROTECTION TECHNOLOGY Co Ltd
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Application filed by SHANGHAI LEIXUN LIGHTNING PROTECTION TECHNOLOGY Co Ltd filed Critical SHANGHAI LEIXUN LIGHTNING PROTECTION TECHNOLOGY Co Ltd
Priority to CN2011200018702U priority Critical patent/CN202126462U/en
Application granted granted Critical
Publication of CN202126462U publication Critical patent/CN202126462U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a passive thunder collecting connector which is accurate in counting, safe and effective, and comprises a current transformer, a voltage limiting circuit, a rectifier circuit, an energy storage circuit, a voltage-stabilization and current-limiting circuit and an optical coupling conversion circuit, wherein the current transformer is used for conducting response acquisition on surge signals; the voltage limiting circuit is used for conducting first-grade limitation on the overhigh surge signals; the rectifier circuit is used for conducting direction of positive and negative polarities on the surge signals; the energy storage circuit is used for converting transformed thunder signals into electric energy to store; the voltage-stabilization and current-limiting circuit is used for filtering the overhigh electric energy of the energy storage circuit; the optical coupling conversion circuit is used for isolating the surge signals; and the current transformer is connected with the voltage limiting circuit in parallel and then is connected into the energy storage circuit by the rectifier circuit, and the energy storage circuit is connected with the voltage-stabilization and current-limiting circuit which is connected with the optical coupling conversion circuit for counting output.

Description

Passive thunder and lightning acquisition interface
Technical field
The utility model relates to a kind of electronic information technology lightning protection and detects the thunderbolt equipment and technology, specifically, relates to a kind of passive thunder and lightning acquisition interface.
Background technology
Widespread use along with electronic technology; And fast development of information technology; Electronic equipment has been deep in people's the every field of life and production, and people almost be unable to do without electric equipment every day, from daily televisor, sound equipment and communication facilities to the equipment of industrial product etc.Because various electric equipments adopt integrated circuit mostly, make that the anti-overvoltage capabilities of electronic equipment is all lower, particularly in the more frequent area of thunder and lightning; Spoilage is very large; For this reason, lightning protection device has obtained using particularly electric system, communication system and television broadcasting system widely." lightning protection " is a comprehensive systems engineering, and must be in all its bearings, comprehensive consideration; Take various effective measures, constantly improvement just can obtain effect, even so; Thunderstruck accident is to increase not have to subtract but country is annual; Lose hundreds of millions ofly, one of important reasons wherein lacks the lightning protection measures that corresponding means assessment is taked exactly.
At present; A lot of lightning protection devices has all increased the counting thunder function, but there is unstable situation in major part, as surge current cross low can not enabling counting, frequency too high can misoperation, high energy thunder amplification can crash or circuit damage etc.; Main cause is that thunder and lightning acquisition interface circuit is unstable; Some directly is connected with the detection display circuit, and some interface circuit is subject to thunderbolt and damages, and also has because the high impulse of thunder and lightning causes miscount.
The utility model content
To above deficiency, the utility model provides a kind of counting accurate, and safe and reliable passive thunder and lightning acquisition interface, and it comprises: to the current transformer that carries out inductive pick-up of surge signal; Too high surge signal is carried out the pressure limiting circuit of one-level restriction; The surge signal is carried out the directed rectification circuit of positive-negative polarity; Transfer the thunder and lightning signal after the conversion to accumulator that electric flux is preserved; The voltage stabilizing current-limiting circuit that the too high electric flux of accumulator is carried out filtering; The optocoupler change-over circuit that the surge signal is isolated.
Said voltage stabilizing current-limiting circuit is made up of lightning protection component TVS1, voltage stabilizing diode DZ1, current-limiting resistance R3, resistance R 4 and resistance R 5.
The utility model is compared with prior art and is had the following advantages: for low excessively surge current also enabling counting in time; The voltage stabilizing current-limiting circuit that has lightning protection component TVS pipe can be to restriction in time of the too high thunder and lightning of frequency and counting; Adopt the light-coupled isolation transmission interface, prevented that effectively the thunder and lightning signal from impacting back level counting treatment circuit.
Description of drawings
Fig. 1 is the circuit theory diagrams of the passive thunder and lightning acquisition interface of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further set forth.
As shown in Figure 1; The passive thunder and lightning acquisition interface of the utility model comprises current transformer 1, pressure limiting circuit 2, rectification circuit 3, accumulator 4, voltage stabilizing current-limiting circuit 5 and optocoupler change-over circuit 6; Current transformer 1 is parallelly connected with pressure limiting circuit 2; Insert accumulator 4 through rectification circuit 3 then, accumulator 4 is connected with voltage stabilizing current-limiting circuit 5, and voltage stabilizing current-limiting circuit 5 is connected with optically-coupled change-over circuit 6 counts output.
Current transformer 1 main negative inductive pick-up to the surge signal is made up of inductance L 1; Pressure limiting circuit 2 can carry out the one-level restriction to too high surge signal, guarantees that late-class circuit is not damaged, and it is made up of resistance M1; The surge signal of 3 pairs of different aspects of rectification circuit carries out the orientation of positive-negative polarity, changes the Rectified alternating current in unified polarity, and it is accomplished by rectifier bridge DB01, is responsible for the positive and negative orientation works of electric current; Thunder and lightning signal after accumulator 4 will be changed transfers electric flux to be preserved, and it is made up of current-limiting resistance R1, R2 and capacitor C 1, accomplishes electric flux preservation work; The too high electric flux of 5 pairs of accumulators of voltage stabilizing current-limiting circuit carries out filtering; Guarantee back level photo-coupler operate as normal; It is made up of lightning protection component TVS1, voltage stabilizing diode DZ1 and current-limiting resistance R3, resistance R 4, resistance R 5, can limit electric current effectively and get into and filter high-frequency impulse; Optocoupler change-over circuit 6 can effectively be isolated surge signal and back level processor circuit effectively, does not disturb mutually, and it is made up of PC817 molded lines property photo-coupler U3 and resistance R 9, realizes that the light of count signal is isolated conversion fast.
The above is merely the preferred embodiments of the utility model; The utility model is not limited to above-mentioned embodiment; In implementation process, possibly there is local small structural modification; If spirit and scope that the various changes or the modification of the utility model do not broken away from the utility model, and belong within the claim and equivalent technologies scope of the utility model, then the utility model also is intended to comprise these changes and modification.

Claims (2)

1. passive thunder and lightning acquisition interface is characterized in that it comprises:
The current transformer that carries out inductive pick-up (1) to the surge signal;
Too high surge signal is carried out the pressure limiting circuit (2) of one-level restriction;
The surge signal is carried out the directed rectification circuit (3) of positive-negative polarity;
Transfer the thunder and lightning signal after the conversion to accumulator (4) that electric flux is preserved;
The too high electric flux of accumulator is carried out the voltage stabilizing current-limiting circuit (5) of filtering;
The optocoupler change-over circuit (6) that the surge signal is isolated.
2. passive thunder and lightning acquisition interface according to claim 1 is characterized in that said voltage stabilizing current-limiting circuit (5) is made up of lightning protection component TVS1, voltage stabilizing diode DZ1, current-limiting resistance R3, resistance R 4 and resistance R 5.
CN2011200018702U 2011-01-06 2011-01-06 Passive thunder collecting connector Expired - Lifetime CN202126462U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200018702U CN202126462U (en) 2011-01-06 2011-01-06 Passive thunder collecting connector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200018702U CN202126462U (en) 2011-01-06 2011-01-06 Passive thunder collecting connector

Publications (1)

Publication Number Publication Date
CN202126462U true CN202126462U (en) 2012-01-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011200018702U Expired - Lifetime CN202126462U (en) 2011-01-06 2011-01-06 Passive thunder collecting connector

Country Status (1)

Country Link
CN (1) CN202126462U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102830262A (en) * 2012-08-27 2012-12-19 无锡安邦电气有限公司 Alternating current detection circuit based on bidirectional optocoupler
CN107872051A (en) * 2016-09-27 2018-04-03 深圳康普盾科技股份有限公司 Possess remote signalling and export pluggable 10/350us lightning protection for power supply

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102830262A (en) * 2012-08-27 2012-12-19 无锡安邦电气有限公司 Alternating current detection circuit based on bidirectional optocoupler
CN102830262B (en) * 2012-08-27 2015-04-22 无锡安邦电气有限公司 Alternating current detection circuit based on bidirectional optocoupler
CN107872051A (en) * 2016-09-27 2018-04-03 深圳康普盾科技股份有限公司 Possess remote signalling and export pluggable 10/350us lightning protection for power supply
CN107872051B (en) * 2016-09-27 2019-05-24 深圳康普盾科技股份有限公司 Have remote signalling and exports pluggable 10/350us lightning protection for power supply

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GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20120125

CX01 Expiry of patent term