WO2017125058A1 - 电子灭弧反馈装置及灭弧装置 - Google Patents
电子灭弧反馈装置及灭弧装置 Download PDFInfo
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- WO2017125058A1 WO2017125058A1 PCT/CN2017/071795 CN2017071795W WO2017125058A1 WO 2017125058 A1 WO2017125058 A1 WO 2017125058A1 CN 2017071795 W CN2017071795 W CN 2017071795W WO 2017125058 A1 WO2017125058 A1 WO 2017125058A1
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- transistor
- arc extinguishing
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- electronic arc
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- 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
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- 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
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- 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
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
Definitions
- the electronic arc extinguishing feedback device and the arc extinguishing device of the invention belong to the field of electricity, in particular to an electronic arc extinguishing feedback device and a power used in an electronic arc extinguishing device suitable for contactors, relays, circuit breakers and other mechanical switches An arc extinguishing device with a short on-time of the device.
- the thyristor When the mechanical switch is separated, the thyristor is turned on, and the filter capacitor discharge delay is delayed by the power supply circuit, and the driving signal for turning off the thyristor is delayed, the thyristor By the end, the arc-free breaking process is completed.
- the object of the present invention is to overcome the deficiencies of the prior art electronic arc extinguishing device and provide an electronic arc extinguishing feedback device which can be conveniently used in an electronic arc extinguishing device, has a simple circuit and high cost performance, and provides a power device guide.
- An arc extinguishing device with short passage time and strong overload force is to overcome the deficiencies of the prior art electronic arc extinguishing device and provide an electronic arc extinguishing feedback device which can be conveniently used in an electronic arc extinguishing device, has a simple circuit and high cost performance, and provides a power device guide.
- An arc extinguishing device with short passage time and strong overload force is provided.
- An electronic arc extinguishing feedback device includes a voltage detecting switch, a first photocoupler, a rectifying device, and a capacitor, wherein the voltage detecting switch is connected with a power device for arc extinguishing, and detects a mechanical device for arc extinguishing The switch is disconnected, the working power source charges the capacitor through the rectifying device, and the capacitor passes through the first photoelectric coupling The control terminal and the voltage detecting switch form a discharge loop, and the first photocoupler outputs a detection signal, and the voltage detecting switch is a semi-controlled switch or a fully-controlled switch whose threshold value is smaller than the on-state voltage of the power device.
- An electronic arc extinguishing feedback device wherein the voltage detecting switch is turned on when detecting a potential difference between both ends of the power device.
- An electronic arc extinguishing feedback device further includes a first current limiting component and a voltage stabilizing device.
- the first current limiting component is connected in series with the rectifying device, and the voltage stabilizing device is connected in parallel with the capacitor or the voltage stabilizing device is connected in parallel with the capacitor through the rectifying device.
- An electronic arc extinguishing feedback device the first current limiting component is a resistor, the rectifying device is a diode, and the voltage stabilizing device is a Zener diode.
- An electronic arc extinguishing feedback device the operating power supply being provided by a neutral line or with another phase line relative to the power device.
- An electronic arc extinguishing feedback device the working power supply is provided by a transformer output winding.
- An electronic arc extinguishing feedback device the power device is a unidirectional thyristor or a bidirectional thyristor.
- An electronic arc extinguishing feedback device includes a second current limiting component and a semiconductor device.
- An electronic arc extinguishing feedback device wherein the voltage detecting switch is connected in series in a driving circuit of the power device, and the capacitor provides driving energy for the power device.
- An electronic arc extinguishing feedback device includes a second current limiting component, a first transistor, a second transistor, a third transistor, and a fourth transistor, wherein a base of the second transistor passes through the second current limiting component and the power device main
- the loop terminal is connected, the emitter of the second transistor is connected to the base of the third transistor, the base of the second transistor is connected to the emitter of the third transistor, and the collector of the third transistor is connected to the base of the fourth transistor,
- the collector of the second transistor, the emitter of the fourth transistor are connected to the base of the first transistor, the collector of the fourth transistor is connected to the emitter of the second transistor, and the collector of the first transistor is connected to the base of the second transistor
- the emitter of the first transistor and the emitter of the second transistor are connected in series in the discharge loop.
- An electronic arc extinguishing feedback device includes a second current limiting component, a first transistor, a second transistor, a third transistor, and a fourth transistor, wherein a base of the second transistor passes through the second current limiting component and the power device main
- the loop terminal is connected, the emitter of the second transistor is connected to the base of the third transistor, the base of the second transistor is connected to the emitter of the third transistor, and the collector of the third transistor is connected to the base of the fourth transistor,
- the collector of the second transistor, the emitter of the fourth transistor is connected to the base of the first transistor, the collector of the fourth transistor is connected to the emitter of the second transistor, and the emitter of the first transistor and the collector of the first transistor are connected in series In the discharge loop.
- An electronic arc extinguishing feedback device the voltage detecting switch further comprising a fifth transistor, wherein a collector of the fifth transistor is connected to a base of the first transistor, and a base of the fifth transistor is connected to a collector of the first transistor, The emitter of the first transistor and the emitter of the fifth transistor are connected in series in the discharge loop.
- An electronic arc extinguishing feedback device comprising at least a thyristor or a thyristor equivalent circuit.
- the threshold of the semi-controlled switch is smaller than the on-state voltage of the power device.
- An arc extinguishing device comprising the electronic arc extinguishing feedback device described above, further comprising a control unit, a power device, and a second photocoupler, wherein the control unit is connected to the driving circuit of the power device through the second photocoupler, first The photocoupler output signal is transmitted to the control unit, and the control unit turns off the conduction control signal of the power device according to the first photocoupler output signal.
- An electronic arc extinguishing feedback device includes a voltage detecting switch (A), a first photocoupler OPT1, a rectifying device D1 (diode), a capacitor C1, a first current limiting component R1 (resistance), The voltage stabilizing device Z1 (Zener diode), the voltage detecting switch (A) is connected with the power device TR1 (bidirectional thyristor) for arc extinguishing, and the mechanical switch K1 for detecting the arc extinguishing required is disconnected, and the working power source (Fig.
- the three-phase power can also be provided by another phase line relative to the power device TR1) charging the capacitor C1 through the first current limiting element R1, the rectifying device D1, and the capacitor C1 passing through the first photocoupler
- the control terminal of OPT1 and the voltage detecting switch (A) form a discharge circuit
- the first photocoupler OPT1 outputs a detection signal
- the voltage detecting switch (A) is a semi-controlled switch or a fully-controlled switch whose threshold value is smaller than the on-state voltage of the power device.
- the voltage stabilizing device Z1 is connected in parallel with the capacitor C1 through the rectifying device D1 (the voltage stabilizing device Z1 can also be directly connected in parallel with the capacitor C1). Note: When the working power supply is provided by a transformer output winding, the first current limiting element R1 and the voltage stabilizing device Z1 can be omitted.
- An arc extinguishing device comprising the electronic arc extinguishing feedback device described above, further comprising a control unit (B) and a power device TR1, wherein the control unit (B) is connected to the driving circuit of the power device TR1 through the second photocoupler OPT2, The first photocoupler OPT1 output signal is passed to the control unit (B).
- the control unit (B) controls the power device TR1 to be turned on, and the voltage detecting switch (A) is turned on when detecting that there is a potential difference between the two ends of the power device TR1 (ie, the mechanical switch K1 is disconnected)
- the control unit (B) turns off the conduction control signal of the power device TR1 according to the output signal of the first photocoupler OPT1, so as to reduce the arc-extinguishing time of the power device TR1.
- the invention has reasonable design, and the electronic arc extinguishing feedback device of the invention has the advantages of high cost performance, simple circuit and high reliability.
- the arc extinguishing device of the invention has the advantages of short arcing conduction time of the power device, high cost performance and strong overload force.
- FIG. 1 is a schematic circuit diagram of an electronic arc extinguishing feedback device and an arc extinguishing device of the present invention.
- FIG. 2 is a circuit schematic diagram 1 of an embodiment of the electronic arc extinguishing feedback device and the arc extinguishing device of the present invention.
- FIG. 3 is a schematic circuit diagram 2 of the first embodiment of the electronic arc extinguishing feedback device and the arc extinguishing device of the present invention.
- FIG. 4 is a schematic diagram 1 of the electronic arc extinguishing feedback device and the voltage detecting switch circuit of the arc extinguishing device of the present invention.
- FIG. 5 is a schematic diagram 2 of the electronic arc extinguishing feedback device and the voltage detecting switch circuit of the arc extinguishing device of the present invention.
- FIG. 6 is a circuit schematic diagram 3 of an embodiment of the electronic arc extinguishing feedback device and the arc extinguishing device of the present invention.
- FIG. 7 is a schematic diagram 3 of the electronic arc extinguishing feedback device and the voltage detecting switch circuit of the arc extinguishing device of the present invention.
- the first embodiment of the electronic arc extinguishing feedback device and the arc extinguishing device of the present invention is as shown in FIG. 2:
- An electronic arc extinguishing feedback device comprising a voltage detecting switch (A), a first photocoupler OPT1, a rectifying device D1 (diode), a capacitor C1, a first current limiting component R1 (resistance), and a voltage stabilizing device Z1 (stable The voltage diode), the second photocoupler OPT2, the voltage detecting switch (A) are connected with the power device TR1 (bidirectional thyristor) for arc extinguishing, and the mechanical switch K1 for detecting the arc extinguishing is detected to be disconnected, and the working power source (Fig.
- the power supply is provided by a neutral line, and may also be provided by another phase line with respect to the power device TR1 in three-phase power.)
- the capacitor C1 is charged through the first current limiting element R1 and the rectifying device D1, and the capacitor C1 passes through the first photoelectric coupling.
- the control terminal of the OPT1, the voltage detecting switch (A), and the driving end of the power device TR1 form a discharge circuit, the first photocoupler OPT1 outputs a detection signal, and the voltage detecting switch (A) may be a half-controlled switch or the threshold is smaller than the power device TR1.
- the voltage stabilizing device Z1 is connected in parallel with the capacitor C1 through the rectifying device D1 (the voltage stabilizing device Z1 can also be directly connected in parallel with the capacitor C1).
- the voltage detecting switch (A) is connected in series in the driving circuit of the power device TR1, and the capacitor C1 provides driving energy for the power device TR1.
- the control end of the first photocoupler OPT1 can also be connected with the voltage detecting switch ( A) internal circuit connection, or add shunt circuit. Note: When the working power supply is provided by a transformer output winding (as shown in Figure 3), the first current limiting component R1 and the voltage stabilizing device Z1 can be omitted.
- R5, resistor R6, resistor R7, resistor R8, the base of the second transistor Q2 is connected to the main loop terminal of the power device TR1 through the second current limiting element R2, and the emitter of the second transistor Q2 is connected to the base of the third transistor Q3
- the base of the second transistor Q2 is connected to the emitter of the third transistor Q3, the collector of the third transistor Q3 is connected to the base of the fourth transistor Q4, the collector of the second transistor Q2, and the emitter of the fourth transistor Q4.
- the collector of the fourth transistor Q4 and the second transistor Connected to the base of the first transistor Q1, the collector of the fourth transistor Q4 and the second transistor
- the emitter of Q2 is connected, the emitter of the first transistor Q1, the collector of the first transistor Q1 are connected in series in the discharge loop of the capacitor C1
- the collector of the fifth transistor Q5 is connected to the base of the first transistor Q1
- the fifth transistor The base of Q5 is connected to the collector of the first transistor Q1
- the emitter of the first transistor Q1 and the emitter of the fifth transistor Q5 are connected in series in the discharge loop of the capacitor C1.
- the voltage detection switch (A) is a full-control type switch; the two ends of the resistor R4, the resistor R5, the resistor R6, and the resistor R7 are respectively connected to the emitter and the base of the related transistor, and the resistor R8 and The base of the first transistor Q1 is connected in series for current limiting, and the resistor R4, the resistor R5, the resistor R6, the resistor R7, and the resistor R8 are non-principal components, and are selected as needed.
- An arc extinguishing device comprising the electronic arc extinguishing feedback device described above, further comprising a control unit (B) and a power device TR1, wherein the control unit (B) is connected to the driving circuit of the power device TR1 through the second photocoupler OPT2, The first photocoupler OPT1 output signal is passed to the control unit (B).
- the voltage detecting switch (A) is connected in series in the driving circuit of the power device TR1, and the driving energy is supplied from the capacitor C1 to the power device TR1.
- the output of the second photocoupler OPT2 can also be combined with the voltage detecting switch in consideration of the large driving circuit current.
- the internal circuit of (A) is connected, or the output of the second photocoupler OPT2 is added with a transistor.
- the voltage detecting switch (A) is not limited to a four-terminal circuit, and may also be a three-terminal circuit (more suitable for use in FIG. 1). As shown in FIG. 5, it includes a second current limiting element R2, a first transistor Q1, and a second transistor Q2.
- the third transistor Q3, the fourth transistor Q4, the base of the second transistor Q2 is connected to the main loop terminal of the power device TR1 through the second current limiting element R2, and the emitter of the second transistor Q2 is connected to the base of the third transistor Q3.
- the base of the second transistor Q2 is connected to the emitter of the third transistor Q3, the collector of the third transistor Q3 is connected to the base of the fourth transistor Q4, the collector of the second transistor Q2, and the emitter of the fourth transistor Q4.
- the collector of the fourth transistor Q4 is connected to the emitter of the second transistor Q2
- the collector of the first transistor Q1 is connected to the base of the second transistor Q2
- the emission of the first transistor Q1 is The emitter of the second transistor Q2 is connected in series in the discharge loop of the capacitor C1.
- the power device may be a bidirectional thyristor or a unidirectional thyristor.
- a unidirectional thyristor When a unidirectional thyristor is used, the polarity adjustment of the related device and the transistor type (NPN and PNP intermodulation) may be adjusted.
- the schematic diagram is shown in FIG. It shows that its voltage detection switch (A) is shown in Figure 7, and the working principle is the same. Said.
- the operating power supply of the electronic arc extinguishing feedback device and the driving energy of the thyristor are not required to be provided by the transformer, and the AC power supply of the mechanical switch is directly isolated from the power supply, and the capacitor is used to drive the first photocoupler OPT1 and the thyristor.
- the current of the first current limiting element R1 can be set to about 0.1 mA, for example, 0.1 mA, and when the operating voltage is 220 V, the energy consumption is only 0.022 W.
- the mechanical switch K1 is closed, the voltage detecting switch (A) is turned off, and the capacitor C1 is in a charging state.
- the zero-crossing control is required, only the second photocoupler OPT2 for controlling the discharge of the capacitor C1 needs to be added.
- This embodiment has the advantages of simple circuit, low energy consumption, and high cost performance.
- the thyristor driving energy and the working power supply of the electronic arc extinguishing feedback device are provided by a transformer-winding.
- the first current limiting component R1 and the voltage stabilizing device Z1 of this embodiment are omitted.
- the invention has reasonable design, and the electronic arc extinguishing feedback device of the invention has the advantages of high cost performance, simple circuit and high reliability.
- the arc extinguishing device of the invention has the advantages of short arcing conduction time of the power device, high cost performance and strong overload force.
Abstract
Description
Claims (15)
- 一种电子灭弧反馈装置,其特征是:其包括一电压检测开关、第一光电耦合器、一整流器件、一电容,所述电压检测开关与用于灭弧的功率器件连接,检测所需灭弧的机械开关断开,工作电源通过所述整流器件为所述电容充电,所述电容通过所述第一光电耦合器的控制端、所述电压检测开关形成放电回路,所述第一光电耦合器输出检测信号,所述电压检测开关为半控型开关或阈值小于所述功率器件通态电压的全控型开关。
- 根据权利要求1所述的电子灭弧反馈装置,其特征是:所述电压检测开关在检测到所述功率器件的两端存在电位差时导通。
- 根据权利要求1所述的电子灭弧反馈装置,其特征是:还包括第一限流元件、一稳压器件,所述第一限流元件与所述整流器件串联,所述稳压器件与所述电容并联或所述稳压器件通过所述整流器件与所述电容并联。
- 根据权利要求3所述的电子灭弧反馈装置,其特征是:所述第一限流元件为一电阻,所述整流器件为一二极管,所述稳压器件为一稳压二极管。
- 根据权利要求3所述的电子灭弧反馈装置,其特征是:所述工作电源由中性线或相对于所述功率器件的另一相线提供。
- 根据权利要求1所述的电子灭弧反馈装置,其特征是:所述工作电源由一变压器输出绕组提供。
- 根据权利要求1所述的电子灭弧反馈装置,其特征是:所述功率器件为单向晶闸管或双向晶闸管。
- 根据权利要求1所述的电子灭弧反馈装置,其特征是:所述电压检测开关包括第二限流元件、半导体器件。
- 根据权利要求1所述的电子灭弧反馈装置,其特征是:所述电压检测开关串联在所述功率器件的驱动回路中,所述电容为所述功率器件提供驱动能量。
- 根据权利要求1所述的电子灭弧反馈装置,其特征是:所述电压检测开关包括第二限流元件、第一晶体管、第二晶体管、第三晶体管、第四晶体管,所述第二晶体管的基极通过所述第二限流元件与所述功率器件主回路端连接,所述第二晶体管的发射极与所述第三晶体管的基极连接,所述第二晶体管的基极与所述第三晶体管的发射极连接,所述第三晶体管的集电极与所述第四晶体管的基极连接,所述第二晶体管的集电极、所述第四晶体管的发射极与所述第一晶体管的基极连接,所述第四晶体管的集电极与所述第二晶体管的发射极连接,所述第一晶体管的集电极与所述第二晶体管的基极连接,所述第一晶体管的发射极、所述第二晶 体管的发射极串联在所述放电回路中。
- 根据权利要求1所述的电子灭弧反馈装置,其特征是:所述电压检测开关包括第二限流元件、第一晶体管、第二晶体管、第三晶体管、第四晶体管,所述第二晶体管的基极通过所述第二限流元件与所述功率器件主回路端连接,所述第二晶体管的发射极与所述第三晶体管的基极连接,所述第二晶体管的基极与所述第三晶体管的发射极连接,所述第三晶体管的集电极与所述第四晶体管的基极连接,所述第二晶体管的集电极、所述第四晶体管的发射极与所述第一晶体管的基极连接,所述第四晶体管的集电极与所述第二晶体管的发射极连接,所述第一晶体管的发射极、所述第一晶体管的集电极串联在所述放电回路中。
- 根据权利要求11所述的电子灭弧反馈装置,其特征是:所述电压检测开关还包括第五晶体管,所述第五晶体管的集电极与所述第一晶体管的基极连接,所述第五晶体管的基极与所述第一晶体管的集电极连接,所述第一晶体管的发射极、所述第五晶体管的发射极串联在所述放电回路中。
- 根据权利要求1所述的电子灭弧反馈装置,其特征是:所述电压检测开关至少包括一晶闸管,或一晶闸管等效电路。
- 根据权利要求1所述的电子灭弧反馈装置,其特征是:所述半控型开关的阈值小于所述功率器件通态电压。
- 一种灭弧装置,其特征是:其包括根据权利要求1至14中任一权利要求所述的电子灭弧反馈装置,还包括控制单元、所述功率器件、第二光电耦合器,所述控制单元通过所述第二光电耦合器与所述功率器件的驱动回路连接,所述第一光电耦合器输出信号传递至所述控制单元,所述控制单元根据所述第一光电耦合器输出信号关闭所述功率器件的导通控制信号。
Applications Claiming Priority (18)
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CN201610070145.8 | 2016-01-24 | ||
CN201610070145 | 2016-01-24 | ||
CN201610116841.8 | 2016-02-26 | ||
CN201610116841.8A CN105610301A (zh) | 2015-02-27 | 2016-02-26 | 晶闸管触发装置 |
CN201610133080 | 2016-03-02 | ||
CN201610133080.7 | 2016-03-02 | ||
CN201610176973 | 2016-03-18 | ||
CN201610176973.X | 2016-03-18 | ||
CN201610316109 | 2016-05-06 | ||
CN201610316109.5 | 2016-05-06 | ||
CN201610392525 | 2016-05-22 | ||
CN201610392525.3 | 2016-05-22 | ||
CN201610403419 | 2016-06-02 | ||
CN201610403419.0 | 2016-06-02 | ||
CN201610583729 | 2016-07-13 | ||
CN201610583729.5 | 2016-07-13 | ||
CN201710029090.0 | 2017-01-16 | ||
CN201710029090.0A CN106847581B (zh) | 2016-01-24 | 2017-01-16 | 电子灭弧反馈装置及灭弧装置 |
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PCT/CN2017/071793 WO2017125056A1 (zh) | 2016-01-24 | 2017-01-20 | 过零检测装置及同步开关 |
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AU2019341286B2 (en) * | 2018-09-19 | 2023-01-19 | Qiaoshi Guo | Arc-extinguishing circuit and apparatus |
CN112753085B (zh) * | 2018-10-25 | 2023-07-28 | 广州市金矢电子有限公司 | 灭弧装置 |
CN117220653A (zh) * | 2023-09-13 | 2023-12-12 | 上海正泰智能科技有限公司 | 固态开关控制方法、固态开关系统、控制单元及存储介质 |
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