CN105185623A - DC electronic arc-extinguishing device - Google Patents
DC electronic arc-extinguishing device Download PDFInfo
- Publication number
- CN105185623A CN105185623A CN201510459501.0A CN201510459501A CN105185623A CN 105185623 A CN105185623 A CN 105185623A CN 201510459501 A CN201510459501 A CN 201510459501A CN 105185623 A CN105185623 A CN 105185623A
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- China
- Prior art keywords
- circuit
- power semiconductor
- control
- electronic arc
- mechanical switch
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- Pending
Links
- 239000004065 semiconductor Substances 0.000 claims abstract description 68
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 230000005669 field effect Effects 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 abstract description 2
- 238000005070 sampling Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000035772 mutation Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a DC electronic arc-extinguishing device which belongs to the field of electricity, particularly a DC electronic arc-extinguishing device suitable for extinguishing arc for a mechanical switch. The DC electronic arc-extinguishing device comprises a power semiconductor device which is parallelly connected with both ends of the mechanical switch in need of arc extinguishing, and is characterized in that a control end of the power semiconductor device is connected with a control circuit, a main loop of the power semiconductor device is connected with the control circuit through a capacitor or a resistor, voltage variations at both ends of the main loop of the power semiconductor device are connected to the control circuit through a capacitor or a resistor, and the control circuit generates a pulse control signal to control the power semiconductor device to be switched on. The DC electronic arc-extinguishing device has the advantages of extremely short switching-on time required by the power semiconductor device, low cost and high reliability.
Description
Technical field
DC electronic arc-control device of the present invention belongs to electricity field, particularly a kind of DC electronic arc-control device being applicable to being applied to as the use of direct current arc extinguishing in relay, contactor, circuit breaker and other mechanical switch.
Background technology
At present in the electric control system such as automobile, electric power, widely use the mechanical switch such as relay, contactor and connection disjunction control is carried out to load, connect spring electric arc and breaking arc because mechanical switch exists, thus cause the easy scaling loss of mechanical switch, the shortcoming that electric life is short.
Summary of the invention
The object of the invention is to avoid the weak point of existing electronic arc-suppressor and provide a kind of and can be applied to various mechanical switch electronic arc eliminating, there is the DC electronic arc-control device that ON time is short, circuit is simple, cost is low.
Realization the object of the invention is to reach by the following technical programs: a kind of DC electronic arc-control device, comprise the power semiconductor in parallel with the mechanical switch two ends of required arc extinguishing, described power semiconductor control end is connected with control circuit, the major loop of described power semiconductor is connected with described control circuit by electric capacity or resistance, the change in voltage at the major loop two ends of described power semiconductor is connected to described control circuit by described electric capacity or described resistance, described control circuit produces pulse control signal and controls described power semiconductor conducting.
A kind of DC electronic arc-control device, described control circuit comprises: power supply circuits, level-conversion circuit, pulse generating circuit, drive circuit, described power supply circuits are described level-conversion circuit, described pulse generating circuit and described drive circuit provide working power, the voltage change signal at the major loop two ends of described power semiconductor is by described electric capacity or described resistance, through described level-conversion circuit again through described pulse generating circuit, described pulse generating circuit output pulse signal gives described drive circuit, described drive circuit drives described power semiconductor conducting.
A kind of DC electronic arc-control device, described level-conversion circuit at least comprises a transistor, described electric capacity becomes series circuit with at least one resistor group, and described series circuit is connected with described transistor controls end, and described transistor output is connected with described pulse generating circuit.
A kind of DC electronic arc-control device, the control end of described transistor and at least one diode form the charging and discharging circuit of described electric capacity.
A kind of DC electronic arc-control device, described level-conversion circuit at least comprises a transistor, and described resistance is connected with described transistor controls end, and described transistor output is connected with described pulse generating circuit.
A kind of DC electronic arc-control device, described pulse generating circuit at least comprises an integrated circuit.
A kind of DC electronic arc-control device, described integrated circuit is programming device.
A kind of DC electronic arc-control device, described integrated circuit comprises multi-channel input mouth and multiplex pulse output port, for multi-channel DC mechanical switch arc extinguishing.
A kind of DC electronic arc-control device, the enable signal exported as described control circuit pulse by a directional current of the input current of described electric capacity, the triggering signal that another directional current of described input current exports as described control circuit pulse.
A kind of DC electronic arc-control device, described power semiconductor is wholly-controled device.
A kind of DC electronic arc-control device, described power semiconductor is triode, field effect transistor or IGBT.
A kind of DC electronic arc-control device, the described mechanical switch load group that is connected with described mechanical switch becomes series circuit, the power input of described power supply circuits is connected with described series circuit two ends, provides described power supply circuits working power by the input power at described series circuit two ends.
A kind of DC electronic arc-control device, described power semiconductor major loop is in series with fusing part.
A kind of DC electronic arc-control device is three terminal circuits, and the series circuit two ends that wherein two end points form with described mechanical switch and load are respectively connected, and the common end that described mechanical switch is connected with load is connected with wherein another end points.
Its operation principle: comprise the power semiconductor in parallel with the mechanical switch two ends of required arc extinguishing, it is characterized in that being connected with control circuit for driving power semiconductor device control end, the master of power semiconductor is back to and is connected with control circuit by an electric capacity or a resistance less, when the closed spring of mechanical switch and disjunction, the change in voltage at mechanical switch two ends is connected to control circuit by electric capacity or resistance, export pulse drive signal by control circuit and control power semiconductor conducting, reach the object of electronic arc eliminating.
The present invention is reasonable in design, when utilizing the closed spring of mechanical switch and disjunction, both end voltage is suddenlyd change, signal is connected to control circuit by electric capacity or resistance thus, when control circuit learns that spring or disjunction appear in mechanical switch, the pulse signal exporting a Microsecond grade controls power semiconductor conducting, the object of desirable arc extinguishing can be reached, power semiconductor can be selected conventional as triode, field effect transistor, IGBT constant power semiconductor device, in rupturing duty process, needed for power semiconductor, ON time is extremely short, microsecond pole can be reached, there is power semiconductor cost low, the advantage that reliability is high.
Accompanying drawing explanation
Fig. 1 is one of embodiments of the invention schematic diagrams.
Fig. 2 is two circuit theory diagrams of embodiments of the invention.
Embodiment
As shown in Figure 1, a kind of DC electronic arc-control device, J1, J2 is the DC supply input of major loop, power semiconductor Q1 is triode, by fusing part F1, (mechanical switch SW1 is the mechanical switch be connected with power semiconductor Q1 to the major loop of power semiconductor Q1 with mechanical switch SW1 two ends parallel connection, the RL be connected in series with mechanical switch SW1 is load resistance, mechanical switch SW1 and load resistance RL is used for the operation principle of more convenient this device of description), the mutation voltage at the mechanical switch SW1 two ends be connected with power semiconductor Q1 is connected to control circuit (A) by the major loop (being the collector electrode of triode in this embodiment) of power semiconductor Q1 by electric capacity C1, the control end of power semiconductor Q1 is connected with control circuit (A), the two ends of the series loop that the working power of control circuit (A) is made up of with load resistance RL mechanical switch SW1 are connected.
The course of work: being used for mechanical switch SW1 arc extinguishing by this device is example, J1, J2 input is connected with working power, electric capacity C1 charging while that control circuit (A) powering on, when mechanical switch SW1 closed, electric capacity C1 discharges and forms reverse current pulses I1, mechanical switch SW1 closes, when there is spring, electric capacity C1 charges and forms forward current pulse I2, at this moment control circuit (A) exports the pulsed power semiconductor device Q1 conducting of several microsecond, play object switch being closed to spring arc extinguishing, after mechanical switch SW1 is closed stable, electric capacity C1 discharges, for charging is prepared again, in the course of work of mechanical switch SW1 disjunction, the moment of mechanical switch SW1 disjunction, electric capacity C1 charges and forms forward current pulse I2, at this moment control circuit (A) exports the pulsed power semiconductor device Q1 conducting of several microsecond, complete the object to switch disjunction arc extinguishing, when power semiconductor Q1 punctures, fusing part F1 disconnects, and guarantees not produce adverse influence to load.Note: electric capacity C1 discharges and forms reverse current pulses I1, can current signal thus, as the enable signal that control circuit (A) pulse exports, for overcoming when mechanical switch SW1 two ends power on, electric capacity C1 charges and forms forward current pulse I2 trigger control circuit (A) output pulse signal, for driving power semiconductor device Q1 conducting.
The DC electronic arc-control device of embodiment one, control circuit (A) is connected with power semiconductor Q1 major loop by electric capacity C1, make DC electronic arc-control device of the present invention without the need to static sampling current because electric capacity has the logical feature exchanging stopping direct current, and larger sampling current can be obtained because power semiconductor Q1 major loop both end voltage is undergone mutation by electric capacity when mechanical switch generation action, also electric capacity can be substituted with a resistance, but static sampling current can be there is, fusing part F1 can when this rating of set semiconductor device punch through damage, power semiconductor major loop can fuse automatically can not have influence on load, power semiconductor can use the full-control type semiconductor device such as triode, field effect transistor, IGBT, and operation principle is identical.The DC electronic arc-control device of embodiment one is three terminal circuits, and the series circuit two ends that wherein two end points form with described mechanical switch and load are respectively connected, and the common end that described mechanical switch is connected with load is connected with wherein another end points.
As shown in Figure 2, a kind of DC electronic arc-control device that may be used for four road mechanical switch arc extinguishings, J1, J2 is the DC supply input of major loop, power semiconductor Q1, Q2, Q3, Q4 is field effect transistor, power semiconductor Q1, Q2, Q3, Q4 is respectively by 4 road mechanical switch S1 of binding post CON1 and mechanical switching circuit (F), S2, S3, S4 connects, and control circuit (A) comprising: power supply circuits (C), level-conversion circuit (B), pulse generating circuit (D), drive circuit (E), power supply circuits (C) are level-conversion circuit (B), pulse generating circuit (D) and drive circuit (E) provide working power, power semiconductor Q1, Q2, Q3, the voltage change signal at the major loop two ends of Q4 is respectively by electric capacity C1, C2, C3, C4 through level-conversion circuit (B), then through pulse generating circuit (D), pulse generating circuit (D) output pulse signal to drive circuit (E), drive circuit (E) driving power semiconductor device Q1, Q2, Q3, Q4 conducting, mechanical switching circuit (F) is by 4 road mechanical switch S1, S2, S3, S4 and load resistance RL1, RL2, RL3, RL4 forms, and mechanical switching circuit (F) is for the convenient operation principle describing this device.
Pulse generating circuit (D): built-in integrated circuit IC is a programming device, the IC of accompanying drawing 2 is F300 microcontroller, also can adopt other model microcontroller, programmable array, digital processing units.
The course of work: the mechanical switch arc extinguishing being used for mechanical switching circuit (F) by this device is example, J1, J2 input is connected with working power, power supply circuits (C), level-conversion circuit (B), pulse generating circuit (D) and drive circuit (E) obtain electric, when the associated mechanical switch S 1 of mechanical switching circuit (F), S2, S3, when S4 closes, by electric capacity C1, C2, C3, level-conversion circuit (B) input port that C4 is coupled, be connected to the respective input mouth of pulse generating circuit (D) again, exported the corresponding input port of pulse driving circuit (E) of several microsecond again by pulse generating circuit (D) corresponding output port, control corresponding power semiconductor device Q1 by the corresponding output port of drive circuit (E), Q2, Q3, Q4 conducting, plays the object to mechanical switching circuit (F) arc extinguishing, at power semiconductor Q1, Q2, Q3, fusing part F1 corresponding with it when Q4 punctures, F2, F3, F4 disconnects, and guarantees not produce adverse influence to load.
The DC electronic arc-control device pole of the present embodiment is applicable to the occasion high to volume and weight index request such as automobile, aircraft, submarine, a set of control circuit can be shared to multichannel mechanical switch and carry out arc extinguishing, there is saving volume and weight, wiring is few (except positive-negative power line shares, as long as every mechanical switch connecting line), feature that reliability is high, and when this rating of set semiconductor device punch through damage, power semiconductor major loop can fuse automatically can not have influence on load; 4 branch roads are had in level-conversion circuit (B), each route input capacitance becomes series circuit with a resistor group, series circuit is connected with transistor controls end thus, transistor output is connected with pulse generating circuit (D), the control end of transistor and diode form the charging and discharging circuit of electric capacity, pulse generating circuit (D) have employed programming device, has to produce that pulse signal pulsewidth is accurate, waveform good, the advantage of input port and output port flexible configuration.
In above two embodiments, when for excising the load of being with perception, reverse voltage protected by major loop reverse parallel connection one diode of admissible power semiconductor, prevents power semiconductor from damaging, and also can adopt the built-in power semiconductor being parallel with backward diode, describe electric capacity in above embodiment to be connected with power semiconductor major loop, because power semiconductor major loop and mechanical switch two ends are parallel relationship, electric capacity is connected with mechanical switch two ends and is connected with power semiconductor major loop is equivalent, all belongs to the protection range of this patent, the series circuit two ends be made up of mechanical switch and load due to the working power of the control circuit in above two embodiments provide, there is wiring few, easy to use, may be used for various mechanical switch (as button, circuit breaker, relay etc.) advantage of arc extinguishing, simultaneously can conveniently obtain can the pulse signal of saturation conduction for the control end of power semiconductor, the working power of control circuit also can otherwise provide, but when considering that mechanical switch two ends power on, overcome the pulse of capacitor charging formation forward current and cause control circuit (A) output pulse signal, reverse current pulses current signal to be formed by mechanical switch closed electrical discharge capacitor, as the enable signal that control circuit (A) pulse exports, the output pulse signal of pulse generating circuit (D) can be chosen to tens of microseconds in several microsecond, power semiconductor can use the full-control type semiconductor device such as triode, field effect transistor, IGBT, and operation principle is identical.
Claims (14)
1. a DC electronic arc-control device, comprise the power semiconductor in parallel with the mechanical switch two ends of required arc extinguishing, it is characterized in that described power semiconductor control end is connected with control circuit, the major loop of described power semiconductor is connected with described control circuit by electric capacity or resistance, the change in voltage at the major loop two ends of described power semiconductor is connected to described control circuit by described electric capacity or described resistance, and described control circuit produces pulse control signal and controls described power semiconductor conducting.
2. DC electronic arc-control device according to claim 1, it is characterized in that described control circuit comprises: power supply circuits, level-conversion circuit, pulse generating circuit, drive circuit, described power supply circuits are described level-conversion circuit, described pulse generating circuit and described drive circuit provide working power, the voltage change signal at the major loop two ends of described power semiconductor is by described electric capacity or described resistance, through described level-conversion circuit again through described pulse generating circuit, described pulse generating circuit output pulse signal gives described drive circuit, described drive circuit drives described power semiconductor conducting.
3. DC electronic arc-control device according to claim 2, it is characterized in that described level-conversion circuit at least comprises a transistor, described electric capacity becomes series circuit with at least one resistor group, described series circuit is connected with described transistor controls end, and described transistor output is connected with described pulse generating circuit.
4. DC electronic arc-control device according to claim 3, is characterized in that the control end of described transistor and at least one diode form the charging and discharging circuit of described electric capacity.
5. DC electronic arc-control device according to claim 2, is characterized in that described level-conversion circuit at least comprises a transistor, and described resistance is connected with described transistor controls end, and described transistor output is connected with described pulse generating circuit.
6. DC electronic arc-control device according to claim 2, is characterized in that described pulse generating circuit at least comprises an integrated circuit.
7. DC electronic arc-control device according to claim 6, is characterized in that described integrated circuit is programming device.
8. DC electronic arc-control device according to claim 6, is characterized in that described integrated circuit comprises multi-channel input mouth and multiplex pulse output port, for multi-channel DC mechanical switch arc extinguishing.
9. DC electronic arc-control device according to claim 1, it is characterized in that the enable signal exported as described control circuit pulse by a directional current of the input current of described electric capacity, the triggering signal that another directional current of described input current exports as described control circuit pulse.
10. DC electronic arc-control device according to claim 1, is characterized in that described power semiconductor is wholly-controled device.
11. DC electronic arc-control devices according to claim 1, is characterized in that described power semiconductor is triode, field effect transistor or IGBT.
12. DC electronic arc-control devices according to claim 2, it is characterized in that the described mechanical switch load group that is connected with described mechanical switch becomes series circuit, the power input of described power supply circuits is connected with described series circuit two ends, provides described power supply circuits working power by the input power at described series circuit two ends.
13. DC electronic arc-control devices according to claim 1, is characterized in that described power semiconductor major loop is in series with fusing part.
14. DC electronic arc-control devices according to claim 1, it is characterized in that: be three terminal circuits, the series circuit two ends that wherein two end points form with described mechanical switch and load are respectively connected, and the common end that described mechanical switch is connected with load is connected with wherein another end points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510459501.0A CN105185623A (en) | 2014-07-30 | 2015-07-26 | DC electronic arc-extinguishing device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410382464 | 2014-07-30 | ||
| CN2014103824643 | 2014-07-30 | ||
| CN201510459501.0A CN105185623A (en) | 2014-07-30 | 2015-07-26 | DC electronic arc-extinguishing device |
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| Publication Number | Publication Date |
|---|---|
| CN105185623A true CN105185623A (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520564362.3U Expired - Lifetime CN205104397U (en) | 2014-07-30 | 2015-07-26 | Direct current electronics arc control device |
| CN201510459501.0A Pending CN105185623A (en) | 2014-07-30 | 2015-07-26 | DC electronic arc-extinguishing device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520564362.3U Expired - Lifetime CN205104397U (en) | 2014-07-30 | 2015-07-26 | Direct current electronics arc control device |
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| CN (2) | CN205104397U (en) |
Cited By (14)
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| CN106783297A (en) * | 2016-01-24 | 2017-05-31 | 广州市金矢电子有限公司 | Direct current arc extinguishing power device drive device and arc-control device |
| WO2019019949A1 (en) * | 2017-07-24 | 2019-01-31 | 广州市金矢电子有限公司 | Direct-current arc-extinguishing device |
| CN109891542A (en) * | 2017-01-13 | 2019-06-14 | 欧姆龙株式会社 | The arc suppression device of DC switchgear |
| CN109891543A (en) * | 2017-01-13 | 2019-06-14 | 欧姆龙株式会社 | The arc suppression device of DC switchgear |
| WO2020057551A1 (en) * | 2018-09-19 | 2020-03-26 | 郭桥石 | Arc-extinguishing circuit and apparatus |
| CN111162767A (en) * | 2020-01-02 | 2020-05-15 | 宁波拓邦智能控制有限公司 | Inductive load switch control method and device |
| CN111756359A (en) * | 2020-07-23 | 2020-10-09 | 天津大学 | A hybrid DC circuit breaker with multi-channel gating function |
| CN112243555A (en) * | 2019-05-18 | 2021-01-19 | 郭桥石 | Arc extinguishing circuit and device |
| WO2021189732A1 (en) * | 2020-04-03 | 2021-09-30 | 郭桥石 | Arc-extinguishing device |
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| CN115692060A (en) * | 2022-09-29 | 2023-02-03 | 国网山西省电力公司电力科学研究院 | A DC arc extinguishing device and arc extinguishing method using a semiconductor and a capacitor |
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2015
- 2015-07-26 CN CN201520564362.3U patent/CN205104397U/en not_active Expired - Lifetime
- 2015-07-26 CN CN201510459501.0A patent/CN105185623A/en active Pending
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| CN106783297A (en) * | 2016-01-24 | 2017-05-31 | 广州市金矢电子有限公司 | Direct current arc extinguishing power device drive device and arc-control device |
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| WO2021190673A1 (en) * | 2020-05-20 | 2021-09-30 | 郭桥石 | Arc extinguishing method |
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| CN111756359B (en) * | 2020-07-23 | 2023-05-19 | 天津大学 | Hybrid DC circuit breaker with multichannel gating function |
| CN111756359A (en) * | 2020-07-23 | 2020-10-09 | 天津大学 | A hybrid DC circuit breaker with multi-channel gating function |
| CN115692060A (en) * | 2022-09-29 | 2023-02-03 | 国网山西省电力公司电力科学研究院 | A DC arc extinguishing device and arc extinguishing method using a semiconductor and a capacitor |
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|---|---|
| CN205104397U (en) | 2016-03-23 |
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Application publication date: 20151223 |
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| WD01 | Invention patent application deemed withdrawn after publication |