CN102842950A - Alternating current and direct current power supply switching device - Google Patents
Alternating current and direct current power supply switching device Download PDFInfo
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- CN102842950A CN102842950A CN2011101722529A CN201110172252A CN102842950A CN 102842950 A CN102842950 A CN 102842950A CN 2011101722529 A CN2011101722529 A CN 2011101722529A CN 201110172252 A CN201110172252 A CN 201110172252A CN 102842950 A CN102842950 A CN 102842950A
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Abstract
The invention provides an alternating current and direct current power supply switching device which comprises an alternating current input end, a direct current input end, a system output end, an alternating current selector switch, a direct current selector switch, and a main control board for controlling the direct current selector switch and the alternating current selector switch to open and close, wherein the direct current input end is electrically connected with the system output end through the direct current selector switch; the alternating current input end is electrically connected with the system output end through the alternating current selector switch; and the direct current selector switch and the alternating current selector switch are both electrically connected with the main control board. With the adoption of the alternating current and direct current power supply switching device, the switching between the alternating current and the high-voltage direct current can be implemented along with a short time, and meanwhile, the arc discharge between contacts of a relay can be avoided; and the alternating current and direct current power supply switching device is simple and reliable in structure, and reduces the cost of manufacture of a product.
Description
Technical field
The present invention relates to the power supply circuits field of intelligent control technology, relate in particular to a kind of supplied by AC/DC electricity switching device shifter.
Background technology
The power commutation circuit that the middle low power backup power system of prior art adopts all is to utilize relay to realize, more than the switching time 10ms, and can only realize the switching of alternating current 220V, below the very low general 100V of the switching dc voltage that can support.Be good under this pattern improved switching time, simultaneously because the reason of withstand voltage arcing has realized not that also interchange and direct current directly switch.
Summary of the invention
The objective of the invention is to design a kind of novel supplied by AC/DC electricity switching device shifter, overcome above-mentioned shortcoming of the prior art, address the above problem.
To achieve these goals, the technical scheme of the present invention's employing is following:
A kind of supplied by AC/DC electricity switching device shifter; Comprise ac input end, direct-flow input end, system's output, exchange diverter switch, direct current diverter switch and control said direct current diverter switch and the said master control borad that exchanges the diverter switch switching; Said direct-flow input end is electrically connected with said system output through said direct current diverter switch; Said ac input end is electrically connected with said system output through said interchange diverter switch, and said direct current diverter switch all is electrically connected with said master control borad with the said diverter switch that exchanges.
Said direct current diverter switch comprises direct current relay and the direct current IGBT that is set up in parallel, and said direct current relay comprises direct current relay coil and DC relay switch, and the current switching of said direct current relay coil is controlled the switching of said DC relay switch; Said direct current IGBT comprises the direct current triode; One end of said DC relay switch is electrically connected with said direct-flow input end; The other end of said DC relay switch is electrically connected with said system output, and said master control borad is controlled the current switching of said direct current relay coil; The emitter of said direct current triode is electrically connected with said dc output end, and the collector electrode of said direct current triode is electrically connected with said system output, and the base stage of said direct current triode is electrically connected with said master control borad.
Said interchange diverter switch comprises the AC relay that is set up in parallel and exchanges IGBT, and said AC relay comprises AC relay coil and AC relay switch, and the current switching of said AC relay coil is controlled the switching of said AC relay switch; Said interchange IGBT comprises the interchange triode; One end of said AC relay switch is electrically connected with said ac input end; The other end of said AC relay switch is electrically connected with said system output, and said master control borad is controlled the current switching of said AC relay coil; The emitter of said interchange triode is electrically connected with said ac output end, and the collector electrode of said interchange triode is electrically connected with said system output, and the base stage of said interchange triode is electrically connected with said master control borad.
The present invention's tandem tap circuit all on alternating current that prepare to switch and galvanic input circuit; Each way switch all is made up of the relay parallel IGBT; When interchange has electricity, exchange and record relay and electric is exported in the full conducting of IGBT, the relay and the IGBT of battery side turn-off.AC side is turn-offed after the civil power power down, the battery side conducting.
Relay of the present invention and IGBT all adopt existing matured product.Master control borad is controlled relay and IGBT switch, detects to provide battery after the civil power power down immediately and insert signal, drives the battery side switch conduction, guarantees less than 5ms, to avoid arcing between relay contact simultaneously switching time.
Beneficial effect of the present invention is following:
1. the invention solves the switching between interchange and the HVDC, switching time is little, can avoid arcing between relay contact simultaneously.
2. system configuration of the present invention is simple and reliable, has reduced cost of goods manufactured.
Description of drawings
Shown in Figure 1 is the structural representation of the specific embodiment of the invention.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the present invention is solved, below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
A kind of supplied by AC/DC electricity switching device shifter as shown in Figure 1; Comprise ac input end, direct-flow input end, system's output, exchange diverter switch, direct current diverter switch and control said direct current diverter switch and the said master control borad that exchanges the diverter switch switching; Said direct-flow input end is electrically connected with said system output through said direct current diverter switch; Said ac input end is electrically connected with said system output through said interchange diverter switch, and said direct current diverter switch all is electrically connected with said master control borad with the said diverter switch that exchanges;
Said direct current diverter switch comprises direct current relay K2 and the direct current IGBT Q2 that is set up in parallel; Said direct current relay K2 comprises direct current relay coil 3 and DC relay switch 4, and the current switching of said direct current relay coil 3 is controlled the switching of said DC relay switch 4; Said direct current IGBT Q2 comprises direct current triode 6; One end of said DC relay switch 4 is electrically connected with said direct-flow input end; The other end of said DC relay switch 4 is electrically connected with said system output, and said master control borad is controlled the current switching of said direct current relay coil 3; The emitter of said direct current triode 6 is electrically connected with said dc output end, and the collector electrode of said direct current triode 6 is electrically connected with said system output, and the base stage of said direct current triode 6 is electrically connected with said master control borad;
Said interchange diverter switch comprises the AC relay K1 that is set up in parallel and exchanges IGBT Q1; Said AC relay K1 comprises AC relay coil 1 and AC relay switch 2, and the current switching of said AC relay coil 1 is controlled the switching of said AC relay switch 2; Said interchange IGBT Q1 comprises interchange triode 5; One end of said AC relay switch 2 is electrically connected with said ac input end; The other end of said AC relay switch 2 is electrically connected with said system output, and said master control borad is controlled the current switching of said AC relay coil 1; The emitter of said interchange triode 5 is electrically connected with said ac output end, and the collector electrode of said interchange triode 5 is electrically connected with said system output, and the base stage of said interchange triode 5 is electrically connected with said master control borad.
As shown in Figure 1, interchange diverter switch in the present embodiment and direct current diverter switch all be by relay (K1, K2) and IGBT (Q1; Q2) parallel connection realizes, all by master control borad control, when the master control borad plate detects ac input end electricity is arranged; Provide control K1; The signal of Q1 conducting is given K2, Q2 cut-off signals simultaneously; System is output as exchanges output, when exchanging fault, master control borad provides K2, and the Q2 Continuity signal is given K1 simultaneously, and the Q1 cut-off signals makes system be output as direct current output.
Electric main is through exchanging diverter switch to system's output in the present embodiment; The direct current input is passed through the direct current diverter switch to system's output; Master control borad detects alternating voltage, direct voltage, when alternating voltage just often provides the interchange Continuity signal, drives the relay and the IGBT conducting that exchange in the diverter switch; Provide the cell switch cut-off signals simultaneously, guarantee that alternating current-direct current does not have the conducting situation of coincidence.
When municipal power failure, the conducting of master control borad control direct current diverter switch, the interchange diverter switch of turn-offing civil power is simultaneously given system's output power supply by direct current.
More than through the detailed description of concrete and preferred embodiment the present invention; But those skilled in the art should be understood that; The present invention is not limited to the above embodiment; All within spirit of the present invention and principle, any modification of being done, be equal to replacement etc., all should be included within protection scope of the present invention.
Claims (3)
1. supplied by AC/DC electricity switching device shifter; It is characterized in that: comprise ac input end, direct-flow input end, system's output, exchange diverter switch, direct current diverter switch and control said direct current diverter switch and the said master control borad that exchanges the diverter switch switching; Said direct-flow input end is electrically connected with said system output through said direct current diverter switch; Said ac input end is electrically connected with said system output through said interchange diverter switch, and said direct current diverter switch all is electrically connected with said master control borad with the said diverter switch that exchanges.
2. supplied by AC/DC electricity switching device shifter according to claim 1; It is characterized in that: said direct current diverter switch comprises direct current relay and the direct current IGBT that is set up in parallel; Said direct current relay comprises direct current relay coil and DC relay switch, and the current switching of said direct current relay coil is controlled the switching of said DC relay switch; Said direct current IGBT comprises the direct current triode; One end of said DC relay switch is electrically connected with said direct-flow input end; The other end of said DC relay switch is electrically connected with said system output, and said master control borad is controlled the current switching of said direct current relay coil; The emitter of said direct current triode is electrically connected with said dc output end, and the collector electrode of said direct current triode is electrically connected with said system output, and the base stage of said direct current triode is electrically connected with said master control borad.
3. supplied by AC/DC electricity switching device shifter according to claim 2; It is characterized in that: said interchange diverter switch comprises the AC relay that is set up in parallel and exchanges IGBT; Said AC relay comprises AC relay coil and AC relay switch, and the current switching of said AC relay coil is controlled the switching of said AC relay switch; Said interchange IGBT comprises the interchange triode; One end of said AC relay switch is electrically connected with said ac input end; The other end of said AC relay switch is electrically connected with said system output, and said master control borad is controlled the current switching of said AC relay coil; The emitter of said interchange triode is electrically connected with said ac output end, and the collector electrode of said interchange triode is electrically connected with said system output, and the base stage of said interchange triode is electrically connected with said master control borad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101722529A CN102842950A (en) | 2011-06-23 | 2011-06-23 | Alternating current and direct current power supply switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101722529A CN102842950A (en) | 2011-06-23 | 2011-06-23 | Alternating current and direct current power supply switching device |
Publications (1)
| Publication Number | Publication Date |
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| CN102842950A true CN102842950A (en) | 2012-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101722529A Pending CN102842950A (en) | 2011-06-23 | 2011-06-23 | Alternating current and direct current power supply switching device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066684A (en) * | 2013-01-06 | 2013-04-24 | 浙江中碳科技有限公司 | High voltage direct current power supply system |
| CN103066691A (en) * | 2013-01-06 | 2013-04-24 | 浙江中碳科技有限公司 | Alternating current-direct current double-input single-output power distribution system with interlocking switchover function |
| CN103166309A (en) * | 2013-04-12 | 2013-06-19 | 上海能巍电气科技有限公司 | Automatic switchover switch device with microsecond-scale switchover time |
| CN103259330A (en) * | 2013-05-28 | 2013-08-21 | 南京海勇电子科技有限公司 | Direct-current double-power switch-over switch |
| CN104410062A (en) * | 2014-12-22 | 2015-03-11 | 中塔新兴通讯技术有限公司 | Communication power supply remote supplying system |
| CN104979851A (en) * | 2015-07-03 | 2015-10-14 | 广东美的厨房电器制造有限公司 | Switching circuit and control method thereof |
| CN105071644A (en) * | 2015-08-10 | 2015-11-18 | 浙江亚特电器有限公司 | Hybrid power driven system and rotary cultivator |
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| CN1790864A (en) * | 2004-12-13 | 2006-06-21 | 新巨企业股份有限公司 | Stand-by power supply with AC-DC power input |
| CN101593999A (en) * | 2008-05-30 | 2009-12-02 | 上海耀华称重系统有限公司 | A kind of civil power and battery powered automatic switch-over circuit |
| CN101720154A (en) * | 2009-12-15 | 2010-06-02 | 海洋王照明科技股份有限公司 | Emergency power supply switching circuit and LED drive circuit thereof |
| CN202111524U (en) * | 2011-06-23 | 2012-01-11 | 北京联动天翼科技有限公司 | Switching apparatus of ac and dc power supply |
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2011
- 2011-06-23 CN CN2011101722529A patent/CN102842950A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1790864A (en) * | 2004-12-13 | 2006-06-21 | 新巨企业股份有限公司 | Stand-by power supply with AC-DC power input |
| CN101593999A (en) * | 2008-05-30 | 2009-12-02 | 上海耀华称重系统有限公司 | A kind of civil power and battery powered automatic switch-over circuit |
| CN101720154A (en) * | 2009-12-15 | 2010-06-02 | 海洋王照明科技股份有限公司 | Emergency power supply switching circuit and LED drive circuit thereof |
| CN202111524U (en) * | 2011-06-23 | 2012-01-11 | 北京联动天翼科技有限公司 | Switching apparatus of ac and dc power supply |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066684A (en) * | 2013-01-06 | 2013-04-24 | 浙江中碳科技有限公司 | High voltage direct current power supply system |
| CN103066691A (en) * | 2013-01-06 | 2013-04-24 | 浙江中碳科技有限公司 | Alternating current-direct current double-input single-output power distribution system with interlocking switchover function |
| CN103166309A (en) * | 2013-04-12 | 2013-06-19 | 上海能巍电气科技有限公司 | Automatic switchover switch device with microsecond-scale switchover time |
| CN103259330A (en) * | 2013-05-28 | 2013-08-21 | 南京海勇电子科技有限公司 | Direct-current double-power switch-over switch |
| CN104410062A (en) * | 2014-12-22 | 2015-03-11 | 中塔新兴通讯技术有限公司 | Communication power supply remote supplying system |
| CN104410062B (en) * | 2014-12-22 | 2017-06-23 | 中塔新兴通讯技术集团有限公司 | A kind of communication power supply remote power feeding system |
| CN104979851A (en) * | 2015-07-03 | 2015-10-14 | 广东美的厨房电器制造有限公司 | Switching circuit and control method thereof |
| CN104979851B (en) * | 2015-07-03 | 2018-03-06 | 广东美的厨房电器制造有限公司 | A kind of on-off circuit and its control method |
| CN105071644A (en) * | 2015-08-10 | 2015-11-18 | 浙江亚特电器有限公司 | Hybrid power driven system and rotary cultivator |
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Application publication date: 20121226 |