CN105093922A - High-power no-arc dual-power switching device - Google Patents
High-power no-arc dual-power switching device Download PDFInfo
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- CN105093922A CN105093922A CN201510602450.2A CN201510602450A CN105093922A CN 105093922 A CN105093922 A CN 105093922A CN 201510602450 A CN201510602450 A CN 201510602450A CN 105093922 A CN105093922 A CN 105093922A
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Abstract
The invention provides a high-power no-arc dual-power switching device comprising a control module and two performance modules. Each performance module comprises a signal acquisition unit and a high-power no-arc switch. An access power supply port for an external power supply is reserved on the high-power no-arc switch. The signal acquisition unit comprises a linear optocoupler. The input end of the linear optocoupler is connected with the processor of the control module. The output end of the linear optocoupler is connected with the high-power no-arc switch. The safe and no-arc effect can be realized, changeover speed is high and stability is greatly enhanced so that the requirement of a high-power load for power supply quality can be met, and 800v AC work and 4000A current operation can be realized.
Description
Technical field
The invention belongs to dual power supply switching circuit technical field, especially relate to a kind of high-power without arc twin-power switch device.
Background technology
In the large enterprise that oil, chemical industry, metallurgy, electric power equicontinuity are produced; for avoiding because electric power system fault causes shutdown; its important rotary machine all adopts dual power supply mode; when arbitrary road power fail power-off; can automatically switch on the power supply of another road normal power supply, to guarantee the continuous running of important rotary machine.
In prior art, dual power supply adopts Electric device with a contact mode to connect and point deenergizing, to realize the object of commutation circuit, therefore can produce larger electric arc when electrical equipment point deenergizing.Electric arc can produce serious or even fatal burning to human body, and the electric arc in device for switching can cause short circuit, and moment, huge ability may burning apparatus, and be extinguish arcs can produce larger cost and switching time generally at 1 second.Adopt mutual inductor, signal analysis is unstable simultaneously, to the signal analysis out of true gathered; Lower on power stage, the requirement of high power load to power quality can not be met.
Summary of the invention
In view of this, it is high-power without arc twin-power switch device that the present invention is intended to propose one, realizes without arc safety, and switch speed is fast, meets the requirement of high power load to power quality.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of high-power without arc twin-power switch device, comprise control module and two execution modules, described execution module comprises signal gathering unit and high-power Switch without electric arc, and described high-power Switch without electric arc leaves the access power port of external power; Described signal gathering unit comprises linear optical coupling, the processor of the input end link control module of described linear optical coupling, and the output terminal of linear optical coupling connects high-power Switch without electric arc.
Further, described high-power Switch without electric arc comprises the first triode, NMOS tube, second triode, 3rd triode, the base stage of described first triode passes through the output terminal of a resistance connecting linear optocoupler, its collector connects the grid of NMOS tube by a resistance, the drain electrode of described NMOS tube connects the emitter of the second triode and the base stage of the 3rd triode simultaneously, the source electrode of described NMOS tube connects the collector of the second triode, and connected the emitter of the 3rd triode by a resistance simultaneously, the base stage of described second triode connects the emitter of the 3rd triode.
Further, the grid of described NMOS tube is by two relative stabilivolt ground connection connected.
Relative to prior art, the present invention has following advantage:
(1) realize safety without arc, switch speed is fast, and stability improves greatly, can meet the requirement of high power load to power quality, realizes 800v alternate current operation and the operation of 4000A electric current.
(2) by adopting linear optical coupling, replace mutual inductor, signal analysis is stablized, and not only can distinguish disconnected item signal, and can according to the under-voltage signal of customization and overvoltage signal;
(3) whole circuit design is reasonable, easily realizes, and is easy to promote.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
The one-piece construction block diagram of automatic change over of Fig. 1 for switching fast without electric arc described in the embodiment of the present invention;
Fig. 2 is for stating the circuit theory diagrams of execution module described in the embodiment of the present invention.
Embodiment
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
A kind of high-power without arc twin-power switch device, as shown in Figure 1, 2, comprise control module and two execution modules, described execution module comprises the signal gathering unit and high-power Switch without electric arc that connect successively, and described high-power Switch without electric arc leaves the access power port of external power; Described signal gathering unit comprises linear optical coupling.
The input end of described linear optical coupling passes through the processor of a resistance link control module, the output terminal of linear optical coupling connects high-power Switch without electric arc, described high-power Switch without electric arc comprises the first triode, NMOS tube, second triode, 3rd triode, the base stage of described first triode passes through the output terminal of a resistance connecting linear optocoupler, its collector connects the grid of NMOS tube by a resistance, the stabilivolt ground connection that the grid connecing NMOS tube is connected relatively by two, the drain electrode of described NMOS tube connects the emitter of the second triode and the base stage of the 3rd triode simultaneously, the source electrode of described NMOS tube connects the collector of the second triode, and connected the emitter of the 3rd triode by a resistance simultaneously, the base stage of described second triode connects the emitter of the 3rd triode.
Control module of the present invention realizes the collection of power supply signal, and carry out analysis judgement, if current power supply generation problem detected, carry out electrical source exchange by execution module, two described execution modules connect load simultaneously, realize connection and the disjunction of load and power supply.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. high-power without an arc twin-power switch device, it is characterized in that: comprise control module and two execution modules, described execution module comprises signal gathering unit and high-power Switch without electric arc, and described high-power Switch without electric arc leaves the access power port of external power; Described signal gathering unit comprises linear optical coupling, the processor of the input end link control module of described linear optical coupling, and the output terminal of linear optical coupling connects high-power Switch without electric arc.
2. according to claim 1 high-power without arc twin-power switch device, it is characterized in that: described high-power Switch without electric arc comprises the first triode, NMOS tube, second triode, 3rd triode, the base stage of described first triode passes through the output terminal of a resistance connecting linear optocoupler, its collector connects the grid of NMOS tube by a resistance, the drain electrode of described NMOS tube connects the emitter of the second triode and the base stage of the 3rd triode simultaneously, the source electrode of described NMOS tube connects the collector of the second triode, and connected the emitter of the 3rd triode by a resistance simultaneously, the base stage of described second triode connects the emitter of the 3rd triode.
3. according to claim 2 high-power without arc twin-power switch device, it is characterized in that: the grid of described NMOS tube is by two relative stabilivolt ground connection connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510602450.2A CN105093922A (en) | 2015-09-18 | 2015-09-18 | High-power no-arc dual-power switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510602450.2A CN105093922A (en) | 2015-09-18 | 2015-09-18 | High-power no-arc dual-power switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105093922A true CN105093922A (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510602450.2A Pending CN105093922A (en) | 2015-09-18 | 2015-09-18 | High-power no-arc dual-power switching device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2098727U (en) * | 1991-03-05 | 1992-03-11 | 北京市农业机械研究所 | Switch without electric arc |
| CN101645370A (en) * | 2009-09-04 | 2010-02-10 | 福州大学 | Passive switch drive controller for hybrid AC contactor based on opto-coupler |
| CN203225579U (en) * | 2013-04-08 | 2013-10-02 | 陈军 | Switching device for automatic switchover of power supplies |
| CN203562959U (en) * | 2013-11-13 | 2014-04-23 | 广东易事特电源股份有限公司 | Double-input switch power supply |
| CN103872760A (en) * | 2013-12-31 | 2014-06-18 | 石家庄博发科技有限公司 | Automatic power supply switching control device of transformer |
| CN204290469U (en) * | 2014-12-31 | 2015-04-22 | 郑州众智科技股份有限公司 | High-power duplicate supply switches and protective device |
| CN205028057U (en) * | 2015-09-18 | 2016-02-10 | 施耐德万高（天津）电气设备有限公司 | Two switch devices of high -power no arc |
-
2015
- 2015-09-18 CN CN201510602450.2A patent/CN105093922A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2098727U (en) * | 1991-03-05 | 1992-03-11 | 北京市农业机械研究所 | Switch without electric arc |
| CN101645370A (en) * | 2009-09-04 | 2010-02-10 | 福州大学 | Passive switch drive controller for hybrid AC contactor based on opto-coupler |
| CN203225579U (en) * | 2013-04-08 | 2013-10-02 | 陈军 | Switching device for automatic switchover of power supplies |
| CN203562959U (en) * | 2013-11-13 | 2014-04-23 | 广东易事特电源股份有限公司 | Double-input switch power supply |
| CN103872760A (en) * | 2013-12-31 | 2014-06-18 | 石家庄博发科技有限公司 | Automatic power supply switching control device of transformer |
| CN204290469U (en) * | 2014-12-31 | 2015-04-22 | 郑州众智科技股份有限公司 | High-power duplicate supply switches and protective device |
| CN205028057U (en) * | 2015-09-18 | 2016-02-10 | 施耐德万高（天津）电气设备有限公司 | Two switch devices of high -power no arc |
Non-Patent Citations (1)
| Title |
|---|
| 黄淑珍: "《数字电子技术》", 28 February 2015 * |
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Application publication date: 20151125 |