CN203983168U - Direct current supply relay semiconductor power device arc quenching system - Google Patents
Direct current supply relay semiconductor power device arc quenching system Download PDFInfo
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- CN203983168U CN203983168U CN201420302247.4U CN201420302247U CN203983168U CN 203983168 U CN203983168 U CN 203983168U CN 201420302247 U CN201420302247 U CN 201420302247U CN 203983168 U CN203983168 U CN 203983168U
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Abstract
Direct current relay semiconductor power device arc quenching system is specifically related to arc extinguishing technology.Direct current relay semiconductor power device arc quenching system, comprises a relay, also comprises a power device conducting control system; Relay comprises a common port, and a normally opened contact and a normally-closed contact; Common port connects the current input terminal of power device, and normally opened contact connects the current output terminal of power device; The control end of power device, connects normally-closed contact; Between current input terminal and control end, divider resistance is set; Control end connects the electrode contrary with current input terminal polarity of voltage.While leaving compared with strong voltage between common and normally opened contact, i.e. the current input terminal of power device, while existing compared with strong voltage with current output terminal, power device conducting.Because the conducting of power device, the voltage between common port and normally opened contact is almost zero volt, and then avoids electric arc to produce.
Description
Technical field
The utility model relates to field of power electronics, is specifically related to arc extinguishing technology.
Background technology
The basic reason that produces electric arc is to contain the electronics that can be dissociated in a large number in device for switching contact itself and contact medium around, when between the contact of disjunction, there is enough large applied voltage, and circuital current is while also reaching your pupil's arc current, will strongly dissociate and form electric arc.
Electric arc can cause relay contact to damage, and even molten company, can, on affecting equipment control, even can cause equipment to cause damage.
Utility model content
The purpose of this utility model is to provide a kind of direct current supply relay semiconductor power device arc quenching system, to solve the problems of the technologies described above.
The utility model can be realized by the following technical solutions:
Direct current supply relay semiconductor power device arc quenching system, comprises a relay, it is characterized in that, also comprises a power device conducting control system;
Described relay comprises a common port, and a normally opened contact and a normally-closed contact;
Described common port connects the current input terminal of power device, and described normally opened contact connects the current output terminal of power device;
The control end of described power device, connects described normally-closed contact;
Between described current input terminal and control end, divider resistance is set;
Described control end connects the electrode contrary with current input terminal polarity of voltage.
Connect from common port and normally opened contact at relay contact, during to disconnection, because electromagnetism principle can cause between common and normally opened contact and leave compared with strong voltage, and easily cause electric arc.In above-mentioned design, common is connected with the current input terminal of power device, current output terminal is connected with normally opened contact, and controlling the utmost point is connected with current input terminal by divider resistance, and then make, while leaving compared with strong voltage between common and normally opened contact, i.e. the current input terminal of power device, while existing compared with strong voltage with current output terminal, power device conducting.Because the conducting of power device, the voltage between common port and normally opened contact is almost zero volt, and then avoids electric arc to produce.
Disconnect after a period of time from common port and normally opened contact at relay contact, be connected to normally-closed contact.Because the control end of power device connects normally-closed contact, and then makes control end be connected to current input terminal.And then power device is turn-offed.And then cut off via direct current relay semiconductor power device arc quenching system the electric current to power consumption equipment.
As a kind of preferred version, described control end connects by a current-limiting resistance, the electrode contrary with current input terminal polarity of voltage.
Can be, described current input terminal connects positive source, and described current output terminal connects power consumption equipment; Described control end connects power cathode by a current-limiting resistance.
As another kind of preferred version, described control end connects (as voltage stabilization can not connect), the electrode contrary with current input terminal polarity of voltage by a voltage-stabiliser tube.
Described power device can adopt P channel MOS tube.
Described power device can also adopt PNP triode.
Described power device is because adopting kind difference, and the annexation of pin, arranges difference with supply voltage.Set current-limiting resistance and divider resistance are also different.But this is well-known to those skilled in the art, therefore no longer describe in detail.
More than current-limiting resistance can be arranged on 90K Ω.Be preferably between 91K Ω to 150K Ω more preferably 100K Ω.So that ensureing to control under the prerequisite of pole tension coupling, reduce electric energy loss.
As a kind of preferred version, described positive source electromotive force is+60V that described power cathode electromotive force is-60V.
As another kind of preferred version, described positive source electromotive force is+72V that described power cathode electromotive force is-72V.
When described power device is P channel MOS tube, described control end is the grid of P channel MOS tube, and described current input terminal is the source electrode of P channel MOS tube, and described current output terminal is the drain electrode of P channel MOS tube.By the size of Vgs, thereby realize the break-make of P channel MOS tube.
When described power device is PNP triode, described control end is the base stage of PNP triode, and described current input terminal is the emitter of PNP triode, and described current output terminal is the collector electrode of PNP triode.
When described power device is N-channel MOS pipe, described control end is the source electrode of N-channel MOS pipe, and described current input terminal is the grid of N-channel MOS pipe, and described current output terminal is the drain electrode of N-channel MOS pipe.
When described power device is NPN triode, described control end is the base stage of NPN triode, and described current input terminal is the collector electrode of NPN triode, and described current output terminal is the emitter of NPN triode.
When described power device is IGBT, described control end is the grid of IGBT, and described current input terminal and described current output terminal are respectively emitter, the collector electrode of IGBT.
Described DC power supply voltage is greater than in the control relay circuit of 60V.
Brief description of the drawings
Fig. 1 is a kind of circuit diagram that the utility model power device adopts P channel MOS tube;
Fig. 2 is the another kind of circuit diagram that the utility model power device adopts N-channel MOS pipe.
Embodiment
Technological means, the creation characteristic realized for the utility model, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
With reference to Fig. 1, Fig. 2, direct current relay semiconductor power device arc quenching system, comprises a relay, also comprises a power device conducting control system; Relay comprises a common, and a normally opened contact and a normally-closed contact; Common connects the current input terminal of power device, and normally opened contact connects the current output terminal of power device; The control end of power device, connects normally-closed contact; Divider resistance R1 is set between current input terminal and control end; Control end connects the electrode contrary with current input terminal polarity of voltage.Connect from common and normally opened contact at relay contact, during to disconnection, because electromagnetism principle can cause between common and normally opened contact and leave compared with strong voltage, and easily cause electric arc.In above-mentioned design, common is connected with the current input terminal of power device, current output terminal is connected with normally opened contact, and controlling the utmost point is connected with current input terminal by divider resistance R1, and then make, while leaving compared with strong voltage between common and normally opened contact, i.e. the current input terminal of power device, while existing compared with strong voltage with current output terminal, power device conducting.Because the conducting of power device, the voltage between common and normally opened contact reduces rapidly thereupon, and then avoids electric arc to produce.
Disconnect after a period of time from common and normally opened contact at relay contact, be connected to normally-closed contact.Because the control end of power device connects normally-closed contact, and then makes control end be connected to current input terminal.And then power device is turn-offed.And then cut off via direct current relay semiconductor power device arc quenching system the electric current to power consumption equipment.
Can be that control end connects (as voltage stabilization can not connect), the electrode contrary with current input terminal polarity of voltage by a voltage-stabiliser tube.Also can be that control end connects (as voltage stabilization can not connect) current input terminal by a voltage-stabiliser tube.Concrete voltage-stabiliser tube is determined according to actual conditions.As power consumption equipment connects current input terminal, control end connects the electrode contrary with current input terminal polarity of voltage by voltage-stabiliser tube.As power consumption equipment connects the electrode contrary with current input terminal polarity of voltage, control end connects current input terminal by voltage-stabiliser tube.
Also can be that control end connects by a current-limiting resistance, the electrode contrary with current input terminal polarity of voltage.Can be, current input terminal connects positive source, and current output terminal connects power consumption equipment; Control end connects power cathode by a current-limiting resistance R2.
Power device can adopt P channel MOS tube or IGBT.Power device can also adopt PNP triode.Power device is because adopting kind difference, and the annexation of pin, arranges difference with supply voltage.Set current-limiting resistance and divider resistance are also different.But this is well-known to those skilled in the art, therefore no longer describe in detail.
More than current-limiting resistance R2 can be arranged on 90K Ω.Be preferably between 91K Ω to 150K Ω more preferably 100K Ω.So that ensureing to control under the prerequisite of pole tension coupling, reduce electric energy loss.
As a kind of preferred version, positive source electromotive force is+60V that power cathode electromotive force is-60V.
As another kind of preferred version, positive source electromotive force is+72V that power cathode electromotive force is-72V.
Concrete enforcement 1, referring to Fig. 1, when power device is P channel MOS tube, control end is connected with current input terminal by divider resistance R1, voltage-stabiliser tube, and current output terminal connects power consumption equipment; Control end connects power cathode by a current-limiting resistance R2.Control end is the grid of P channel MOS tube, and current input terminal is the source electrode of P channel MOS tube, and current output terminal is the drain electrode of P channel MOS tube.By the size of Vgs, thereby realize the break-make of P channel MOS tube.
More than divider resistance R1 can be arranged on 10K Ω.Be preferably between 15K Ω to 25K Ω more preferably 20K Ω.
When power device is PNP triode, control end is the base stage of PNP triode, and current input terminal is the emitter of PNP triode, and current output terminal is the collector electrode of PNP triode.
When power device is N-channel MOS pipe, control end is the source electrode of N-channel MOS pipe, and current input terminal is the grid of N-channel MOS pipe, and current output terminal is the drain electrode of N-channel MOS pipe.
When power device is NPN triode, control end is the base stage of NPN triode, and current input terminal is the collector electrode of NPN triode, and current output terminal is the emitter of NPN triode.
When power device is IGBT, control end is the grid of IGBT, and current input terminal and current output terminal are respectively emitter, the collector electrode of IGBT.
DC power supply voltage is greater than in the control relay circuit of 60V.
More than show and describe general principle of the present utility model and principal character advantage of the present utility model.The technical staff of the industry should understand the utility model and not be subject to the restriction of above-mentioned using method; that in above-mentioned using method and specification, describes just says principle of the present utility model; under the prerequisite that does not depart from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall into the claimed scope of the utility model within the scope of claimed the utility model and defined by appending claims and equivalent thereof.
Claims (10)
1. direct current relay semiconductor power device arc quenching system, comprises a relay, it is characterized in that, also comprises a power device conducting control system;
Described relay comprises a common, and a normally opened contact and a normally-closed contact;
Described common connects the current input terminal of power device, and described normally opened contact connects the current output terminal of power device;
The control end of described power device, connects described normally-closed contact;
Between described current input terminal and control end, divider resistance is set;
Described control end connects the electrode contrary with current input terminal polarity of voltage.
2. direct current relay semiconductor power device arc quenching system according to claim 1, is characterized in that: described control end connects by a current-limiting resistance, the electrode contrary with current input terminal polarity of voltage.
3. direct current relay semiconductor power device arc quenching system according to claim 1, is characterized in that: described control end connects by a voltage-stabiliser tube, the electrode contrary with current input terminal polarity of voltage.
4. direct current relay semiconductor power device arc quenching system according to claim 2, is characterized in that: described current input terminal connects positive source, and described current output terminal connects power consumption equipment; Described control end connects power cathode by a current-limiting resistance.
5. direct current relay semiconductor power device arc quenching system according to claim 1, is characterized in that: described power device adopts P channel MOS tube.
6. direct current relay semiconductor power device arc quenching system according to claim 1, is characterized in that: described power device adopts PNP triode.
7. direct current relay semiconductor power device arc quenching system according to claim 5, it is characterized in that: when described power device is P channel MOS tube, described control end is the grid of P channel MOS tube, described current input terminal is the source electrode of P channel MOS tube, and described current output terminal is the drain electrode of P channel MOS tube.
8. direct current relay semiconductor power device arc quenching system according to claim 1, it is characterized in that: when described power device is PNP triode, described control end is the base stage of PNP triode, described current input terminal is the emitter of PNP triode, and described current output terminal is the collector electrode of PNP triode.
9. direct current relay semiconductor power device arc quenching system according to claim 1, it is characterized in that: when described power device is N-channel MOS pipe, described control end is the source electrode of N-channel MOS pipe, described current input terminal is the grid of N-channel MOS pipe, and described current output terminal is the drain electrode of N-channel MOS pipe.
10. direct current relay semiconductor power device arc quenching system according to claim 1, it is characterized in that: when described power device is NPN triode, described control end is the base stage of NPN triode, described current input terminal is the collector electrode of NPN triode, and described current output terminal is the emitter of NPN triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420302247.4U CN203983168U (en) | 2014-06-09 | 2014-06-09 | Direct current supply relay semiconductor power device arc quenching system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420302247.4U CN203983168U (en) | 2014-06-09 | 2014-06-09 | Direct current supply relay semiconductor power device arc quenching system |
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| CN203983168U true CN203983168U (en) | 2014-12-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105304413A (en) * | 2015-11-06 | 2016-02-03 | 沈红 | Method for eliminating contact arcs of DC device as well as device and application thereof |
| CN107863956A (en) * | 2016-11-12 | 2018-03-30 | 广州市金矢电子有限公司 | Dynamic electrode arc-control device |
-
2014
- 2014-06-09 CN CN201420302247.4U patent/CN203983168U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105304413A (en) * | 2015-11-06 | 2016-02-03 | 沈红 | Method for eliminating contact arcs of DC device as well as device and application thereof |
| CN107863956A (en) * | 2016-11-12 | 2018-03-30 | 广州市金矢电子有限公司 | Dynamic electrode arc-control device |
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Effective date of registration: 20160201 Address after: 102, room 12, building 1158, No. 201613, Songjiang hi tech Industrial Park, Songjiang District groove River Development Zone, Shanghai Patentee after: Shanghai Pusheng Compressor Co., Ltd. Address before: 201317, Shanghai, Pudong New Area Air Town, Xiasha spring Crane Village, No. 128 Patentee before: SHANGHAI XINJI ELECTRONICS CO., LTD. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20191218 Address after: 515800 Yatuo Toy Craft Co., Ltd., Linghai Industrial Zone, Chenghai District, Shantou City, Guangdong Province, 1 Building and 3 Floors Patentee after: Guangdong Pusheng New Energy Technology Co., Ltd. Address before: 102, room 12, building 1158, No. 201613, Songjiang hi tech Industrial Park, Songjiang District groove River Development Zone, Shanghai Patentee before: Shanghai Pusheng Compressor Co., Ltd. |
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