CN203617704U - Equipotential cutoff anti-thunder multifunctional power-source-protecting circuit - Google Patents
Equipotential cutoff anti-thunder multifunctional power-source-protecting circuit Download PDFInfo
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- CN203617704U CN203617704U CN201320673267.8U CN201320673267U CN203617704U CN 203617704 U CN203617704 U CN 203617704U CN 201320673267 U CN201320673267 U CN 201320673267U CN 203617704 U CN203617704 U CN 203617704U
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Abstract
The utility model discloses an equipotential cutoff anti-thunder multifunctional power-source-protecting circuit. The circuit is arranged in a metal box of a piece of equipment and includes a power input terminal and a power output terminal. A relay is connected between the power input terminal and the power output terminal electrically. The circuit also includes an anti-thunder circuit, a device failure detection and automatic release circuit, a temperature control limit circuit, a short circuit protection and automatic restoring circuit, a detection and signal processing circuit, a surge delay action circuit, an overload current limit protection circuit and a transforming and rectifying circuit. The circuit can realize lightening protection quickly and has a design for multi-level lightening protection and comprehensive power source protection with functions of working frequency surge prevention, overload prevention, overload prevention, overvoltage prevention, undervoltage prevention, high temperature protection, short circuit protection and automatic restoration, failure prompt, grounding indication and the like. Problems of afterflow and leak current and subsequent short circuit problems are solved, so that safe power supply of the equipment is guaranteed and service lifetimes of an anti-thunder product and the to-be-protected equipment are prolonged.
Description
Technical field
The utility model relates to a kind of circuit of protection power source of lightning protection, particularly a kind of equipotential multifunction protection power circuit of lightning protection that dams.
Background technology
In recent years, along with various electronic equipments and information equipment, electric equipment products are growing, the quantity of the damage such as the situation of thunderbolt, particularly indirect lightning strike and the various electronic equipments that cause because of problems such as power supply factors and information equipment, electric equipment products also grew with each passing day; It not only affects the normal use of equipment, and therefore various information systems and signal transmission network are usually interrupted, and causes huge direct economic loss and indirect loss to FU and user.
All there is following problem in the lightning protection for power supply using at present:
1, the main lightning protection principle of lightning protection device is by the lightning current the earth of releasing, if lightning protection device and protected equipment do not do ground connection, or earth connection disconnects, and lightning protection device will lose lightning protection function.
2,, because lightning protection device connects the earth by earth connection, in the time that the earth exists high potential in the time being struck by lightning, lightning current easily connects the earth connection of the earth and strikes back lightning protection device and protected electrical equipment and electronic equipment, causes electronic equipment to suffer to strike back the damage of thunder.
3, owing to will making lightning protection line, cause the significantly rising of the installing engineering cost of lightning-protected product, but also be usually subject to that ground excavation, earth connection lay, the restriction of soil earth resistance rate etc. execution conditions.
4, conventional lightning-protected product all only has single function, cannot protect faults such as power frequency surge, overload, power supply short circuits.
Summary of the invention
Goal of the invention of the present utility model is: for the problem of above-mentioned existence, a kind of equipotential lightning protection multifunction protection power circuit that dams is provided, this circuit is arranged in equipment metal cabinet, comprise power input and power output end, between power input and power output end, be electrically connected a relay, the input of described relay and power input are electrically connected, and output and power output end are electrically connected; Also comprise that lightning protection circuit, component failure detect automatic breaking circuit, temperature control limiting circuit, short-circuit protection and automatic restoring circuit, detection and signal processing circuit, the delay voltage circuit of surging, overload current-limiting protection circuit and transformation rectification circuit; The earth terminal of described lightning protection circuit is connected to equipment metal cabinet PE incoming end, and the input that output and component failure detect automatic breaking circuit is electrically connected, and the output of input and temperature control limiting circuit is electrically connected; Component failure detects automatic breaking circuit and is electrically connected with input and the power input of temperature control limiting circuit respectively; The input of short-circuit protection and automatic restoring circuit and power input are electrically connected, and an input port of output and detection and signal processing circuit is electrically connected; Detect and the power input of signal processing circuit and the electric connection of the DC output end of transformation rectification circuit, output is electrically connected with an input of the delay voltage circuit of surging; Another input of delay voltage circuit of surging is electrically connected with the output of overload current-limiting protection circuit, and the control end of output and relay is electrically connected, the DC output end electric connection of power input and transformation rectification circuit; Input and the power output end of overload current-limiting protection circuit are electrically connected; The input of transformation rectification circuit and power input are electrically connected.
Concrete, the most preferred, foregoing circuit also comprises ground connection and phase identification circuit, the input of this ground connection and phase identification circuit and power input are electrically connected, can also comprise ground connection indicating circuit, the output of the input of this ground connection indicating circuit and described ground connection and phase identification circuit is electrically connected.
Concrete, as preferably, the transformation rectification circuit in foregoing circuit comprises transformer, rectification circuit and DC power supply circuit, and the input of transformation rectification circuit is electrically connected with power input, output and rectification circuit electric connection; The input of DC power supply circuit and the input of DC power supply circuit are electrically connected, and output is electrically connected with the power input of detection and signal processing circuit and the power input of the delay voltage circuit of surging respectively.
Further, above-mentioned circuit also comprises a sound light alarming circuit, and another output of the input of this sound light alarming circuit and detection and signal processing circuit is electrically connected.
In sum, owing to having adopted technique scheme, the beneficial effects of the utility model are:
1, broken through the forbidden zone of " the necessary ground connection of lightning protection "; on the basis based on " equipotential " shocking preventing technology principle; " equipotential is dammed " lightning protection new technology is proposed; utilize electronics new material to carry out " moment dam short circuit " to indirect lightning strike electric current; allow the electronic equipment protected by lightning-protected product or power-supply device, electrical equipment in the time of thunderbolt etween the lines, line with publicly between, current potential moment between circuitry and equipment metal shell casing and frame, rack etc. equates; in the situation that each point current potential is equal each other, absorb lightning current decompression naturally.From then on, lightning-protected product can finish to drag the history of " earth connection " plait.
2, product not only can be anti-lightning strike fast, and there is anti-power frequency surge, antioverloading, anti-overvoltage, anti-under-voltage, high temperature protection, short-circuit protection designs with automatically recover, the lost efficacy multistage lightning protection such as prompting, ground connection indication and power supply integrated protection.
3, adopt votage limit type electronic devices and components and switch electronic device grading design; in lightning-protected product when action, is without " afterflow "; making leakage current become " zero " comes true; stop conventional SPD(surge protector) insurmountable " afterflow " and " leakage current " phenomenon and consequent short trouble; not only guarantee the safe power supply of equipment, and extended the useful life of lightning-protected product and protected equipment.
Accompanying drawing explanation
Fig. 1 is the dam circuit theory diagrams of lightning protection multifunction protection power circuit of the utility model equipotential.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The present invention has broken through the forbidden zone of " the necessary ground connection of lightning protection "; adopt " equipotential " principle to be combined layout designs with switching circuit with pressure limiting and becomes " equipotential is dammed " lightning protection new technology, in realizing multistage lightning protection and contain comprehensive Design and the application of the circuit such as surge, high temperature protection.This patent has adopted choosing, connecting and combination of ripe functional module, when realizing multistage lightning protection with comprehensive Design and the application of the circuit such as containment surge, high temperature protection.
As shown in Figure 1; the equipotential lightning protection multifunction protection power circuit that dams; this circuit is arranged in equipment metal cabinet; comprise power input 100 and power output end 101; between power input 100 and power output end 101, be electrically connected a relay 102; the input of described relay 102 and power input 100 are electrically connected, and output and power output end 101 are electrically connected.
Also comprise that lightning protection circuit, component failure detect automatic breaking circuit, temperature control limiting circuit, short-circuit protection and automatic restoring circuit 103, detection and signal processing circuit 108, the delay voltage circuit 109 of surging, overload current-limiting protection circuit 110 and transformation rectification circuit; The earth terminal of described lightning protection circuit 103 is connected to equipment metal cabinet PE incoming end 104, the input that output and component failure detect automatic breaking circuit 105 is electrically connected, the output of input and temperature control limiting circuit is electrically connected, three ends of lightning protection circuit connect to guarantee in the time that any point connecting circuit is struck by lightning like this, make equating of each point current potential by instantaneous short circuit, reach the dam object of lightning protection and pressure limiting of equipotential; Output and component failure detect the situation of automatic breaking circuit 105 for detection of the component failure of lightning protection circuit 103, after component failure, can allow lightning protection circuit carry out automatic trip from; Component failure detects automatic breaking circuit 105 and is electrically connected with input and the power input of temperature control limiting circuit 106 respectively, after temperature limiting circuit exceedes for raising in power lightning protection device short circuit temperature the maximum temperature limits value setting in advance, automatically cut off the connection between lightning protection circuit 103 and power circuit, the electrical fire of avoiding generation to cause because of lightning protection device; The input of short-circuit protection and automatic restoring circuit 107 and power input 100 are electrically connected, and an input port of output and detection and signal processing circuit 108 is electrically connected; Detect and the power input of signal processing circuit 108 and the electric connection of the DC output end of transformation rectification circuit, output is electrically connected with an input of the delay voltage circuit 109 of surging; Another input of delay voltage circuit 109 of surging is electrically connected with the output of overload current-limiting protection circuit 110, and the control end of output and relay 102 is electrically connected, the DC output end electric connection of power input 100 and transformation rectification circuit; Input and the power output end 101 of overload current-limiting protection circuit 110 are electrically connected; The input of transformation rectification circuit and power input 100 are electrically connected; In the time detecting power circuit and have short circuit current to occur, or instantaneous power failure and when energising occur suddenly, signal processing circuit will start surge delay circuit and the actuating of relay, and the output 101 of power circuit is cut off or conducting; Meanwhile, start buzzer and LED light warning by the sound light alarming circuit connecting.
In above-mentioned circuit, also comprise ground connection and phase identification circuit 112, the input of this ground connection and phase identification circuit and power input 100 are electrically connected; Concrete can also comprise ground connection indication electricity 113 road, and the output 112 of the input of this ground connection indicating circuit 113 and described ground connection and phase identification circuit is electrically connected, for showing the state of ground connection.
In above-mentioned circuit, transformation rectification circuit comprises transformer 114, rectification circuit 115 and DC power supply circuit 116, and the input of transformation rectification circuit and power input 100 are electrically connected, and output and rectification circuit 115 are electrically connected; The input of the input of DC power supply circuit 116 and DC power supply circuit 115 is electrically connected, and output is electrically connected with the power input of detection and signal processing circuit 108 and the power input of the delay voltage circuit 109 of surging respectively.Also comprise a sound light alarming circuit 111, another output of the input of this sound light alarming circuit 111 and detection and signal processing circuit is electrically connected.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (6)
1. the equipotential lightning protection multifunction protection power circuit that dams; this circuit is arranged in equipment metal cabinet; comprise power input and power output end; between power input and power output end, be electrically connected a relay; the input of described relay and power input are electrically connected; output and power output end are electrically connected, and it is characterized in that:
Also comprise that lightning protection circuit, component failure detect automatic breaking circuit, temperature control limiting circuit, short-circuit protection and automatic restoring circuit, detection and signal processing circuit, the delay voltage circuit of surging, overload current-limiting protection circuit and transformation rectification circuit; The earth terminal of described lightning protection circuit is connected to equipment metal cabinet PE incoming end, and the input that output and component failure detect automatic breaking circuit is electrically connected, and the output of input and temperature control limiting circuit is electrically connected; Component failure detects automatic breaking circuit and is electrically connected with input and the power input of temperature control limiting circuit respectively; The input of short-circuit protection and automatic restoring circuit and power input are electrically connected, and an input port of output and detection and signal processing circuit is electrically connected; Detect and the power input of signal processing circuit and the electric connection of the DC output end of transformation rectification circuit, output is electrically connected with an input of the delay voltage circuit of surging; Another input of delay voltage circuit of surging is electrically connected with the output of overload current-limiting protection circuit, and the control end of output and relay is electrically connected, the DC output end electric connection of power input and transformation rectification circuit; Input and the power output end of overload current-limiting protection circuit are electrically connected; The input of transformation rectification circuit and power input are electrically connected.
2. the equipotential according to claim 1 lightning protection multifunction protection power circuit that dams, is characterized in that, also comprises ground connection and phase identification circuit, and the input of this ground connection and phase identification circuit and power input are electrically connected.
3. the equipotential according to claim 2 lightning protection multifunction protection power circuit that dams, is characterized in that, also comprises ground connection indicating circuit, and the output of the input of this ground connection indicating circuit and described ground connection and phase identification circuit is electrically connected.
4. according to the lightning protection multifunction protection power circuit that dams of the equipotential described in claim 1,2 or 3, it is characterized in that, transformation rectification circuit comprises transformer, rectification circuit and DC power supply circuit, the input of transformation rectification circuit and power input are electrically connected, and output and rectification circuit are electrically connected; The input of DC power supply circuit and the input of DC power supply circuit are electrically connected, and output is electrically connected with the power input of detection and signal processing circuit and the power input of the delay voltage circuit of surging respectively.
5. according to the lightning protection multifunction protection power circuit that dams of the equipotential described in claim 1,2 or 3, it is characterized in that, also comprise a sound light alarming circuit, another output of the input of this sound light alarming circuit and detection and signal processing circuit is electrically connected.
6. the equipotential according to claim 4 lightning protection multifunction protection power circuit that dams, is characterized in that, also comprises a sound light alarming circuit, and another output of the input of this sound light alarming circuit and detection and signal processing circuit is electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320673267.8U CN203617704U (en) | 2013-10-30 | 2013-10-30 | Equipotential cutoff anti-thunder multifunctional power-source-protecting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320673267.8U CN203617704U (en) | 2013-10-30 | 2013-10-30 | Equipotential cutoff anti-thunder multifunctional power-source-protecting circuit |
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| Publication Number | Publication Date |
|---|---|
| CN203617704U true CN203617704U (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320673267.8U Expired - Fee Related CN203617704U (en) | 2013-10-30 | 2013-10-30 | Equipotential cutoff anti-thunder multifunctional power-source-protecting circuit |
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| CN (1) | CN203617704U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201640A (en) * | 2014-09-12 | 2014-12-10 | 浙江久天电力科技有限公司 | Multifunctional self-resetting lightning-proof breaker |
| CN111226366A (en) * | 2017-10-20 | 2020-06-02 | 伊利诺斯工具制品有限公司 | Method and apparatus for adaptive AC/DC surge protection |
| CN111934298A (en) * | 2020-07-16 | 2020-11-13 | 深圳市雷蓝电气科技有限公司 | Electric shock protection device |
-
2013
- 2013-10-30 CN CN201320673267.8U patent/CN203617704U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201640A (en) * | 2014-09-12 | 2014-12-10 | 浙江久天电力科技有限公司 | Multifunctional self-resetting lightning-proof breaker |
| CN104201640B (en) * | 2014-09-12 | 2017-07-25 | 浙江久天电力科技有限公司 | Self-resetting multifunctional lightning protection breaker |
| CN111226366A (en) * | 2017-10-20 | 2020-06-02 | 伊利诺斯工具制品有限公司 | Method and apparatus for adaptive AC/DC surge protection |
| CN111934298A (en) * | 2020-07-16 | 2020-11-13 | 深圳市雷蓝电气科技有限公司 | Electric shock protection device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140528 Termination date: 20161030 |
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| CF01 | Termination of patent right due to non-payment of annual fee |