WO2020083323A1 - Arc-extinguishing apparatus - Google Patents
Arc-extinguishing apparatus Download PDFInfo
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- WO2020083323A1 WO2020083323A1 PCT/CN2019/112888 CN2019112888W WO2020083323A1 WO 2020083323 A1 WO2020083323 A1 WO 2020083323A1 CN 2019112888 W CN2019112888 W CN 2019112888W WO 2020083323 A1 WO2020083323 A1 WO 2020083323A1
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- capacitor
- voltage
- arc extinguishing
- detection switch
- switch
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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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- the invention relates to an arc extinguishing device, in particular an arc extinguishing device suitable for extinguishing arcs of contactors (relays) and other mechanical switches, and can also be used for other breakpoints (such as the fuse of a fuse, the connection between a plug and a socket) Breakpoint, wire breakpoint).
- an arc extinguishing device suitable for extinguishing arcs of contactors (relays) and other mechanical switches, and can also be used for other breakpoints (such as the fuse of a fuse, the connection between a plug and a socket) Breakpoint, wire breakpoint).
- the purpose of the present invention is to solve the problem of short electrical life of mechanical switches in existing electronic control systems, and to provide an arc extinguishing device that uses capacitors to extinguish arcs by detecting the voltage change rate of the common terminal of the mechanical switch and the load.
- An arc extinguishing device as shown in FIG. 1, includes a first capacitor C1, a detection switch A, the detection switch A is connected to the first capacitor C1, and the detection switch A is used to detect a change in the voltage at the common terminal of the load M and the mechanical switch K The rate and the change rate reach the opening value of the detection switch A, the detection switch A is turned on, and the first capacitor C1 supplies power to the load M through the detection switch A.
- the invention has reasonable design, and uses the change rate of the detection switch to detect the voltage for arc extinction, which has the advantages of strong resistance to voltage fluctuation, high arc extinction accuracy, and good arc extinction effect.
- Figure 1 is a circuit schematic diagram of the arc extinguishing device of the present invention.
- FIG. 2 is a circuit schematic diagram of an embodiment of the arc extinguishing device of the present invention.
- FIG 3 is one of the circuit schematic diagrams of the second embodiment of the arc extinguishing device of the present invention.
- FIG. 4 is the second circuit schematic diagram of the second embodiment of the arc extinguishing device of the present invention.
- FIG. 5 is one of the circuit schematic diagrams of the third embodiment of the arc extinguishing device of the present invention.
- FIG. 6 is one of the circuit diagrams of the delay unit of the detection switch of the arc extinguishing device of the present invention.
- FIG. 7 is the second schematic diagram of the delay unit circuit of the detection switch of the arc extinguishing device of the present invention.
- FIG. 8 is a schematic diagram of an equivalent circuit circuit of the thyristor of the detection switch of the arc extinguishing device of the present invention.
- FIG. 9 is the second circuit schematic diagram of the third embodiment of the arc extinguishing device of the present invention.
- Embodiment 4 of the arc extinguishing device of the present invention.
- FIG. 11 is a circuit schematic diagram of the fifth embodiment of the arc extinguishing device of the present invention.
- Embodiment 6 is a schematic diagram of Embodiment 6 of the arc extinguishing device of the present invention.
- Fig. 13 is one of the voltage waveform diagrams at both ends of the load without using the arc extinguishing device of the present invention.
- 15 is the third waveform diagram of the voltage across the load of the arc extinguishing device of the present invention.
- 16 is the fourth waveform diagram of the voltage across the load of the arc extinguishing device of the present invention.
- Embodiment 1 of the arc extinguishing device of the present invention is shown in FIG. 2:
- An arc extinguishing device includes a first capacitor C1, a detection switch A, the detection switch A is connected to the first capacitor C1, the detection switch A is used to detect the rate of change of the voltage across the load M (ie, the load M and the mechanical switch K The rate of change of the common terminal relative to the ground voltage of the load M), the rate of change (falling rate) of the voltage across the load M reaches the opening value of the detection switch A, the detection switch A is turned on, and the first capacitor C1 passes the detection switch A to the load M powered by;
- a charging unit B which is composed of a first diode D1, a first current limiting element R1 (resistor) connected in series;
- Detection switch A a semi-controlled switch, including a second capacitor C2, a controllable device SCR1, a second diode D2 (option), the voltage across the load M passes through the first capacitor C1, the second diode D2,
- the second capacitor C2 drives the controllable device SCR1 to turn on; the operating energy and voltage signal of the detection switch A are provided by the first capacitor C1; the common terminal of the second diode D2 and the second capacitor C2 and the first diode D1 1.
- the common terminal of the first current limiting element R1 is connected, and the third diode D3 (option) is connected to the trigger electrode and the cathode of the controllable device SCR1.
- the mechanical switch K is connected in series with the load M, the mechanical switch K is closed, and the voltage across the load M charges the first capacitor C1 through the charging unit B.
- the mechanical switch K bounces closed or the switch K breaks, the first capacitor C1
- the controllable device SCR1 is driven by the second diode D2 and the second capacitor C2, and the first capacitor C1 supplies power to the load M through the controllable device SCR1.
- the voltage across the load M rises rapidly, and the potential difference across the mechanical switch K is rapid Down to achieve the purpose of the mechanical switch extinguishing the arc.
- This embodiment has the advantages of small number of components used and simple circuit.
- FIG. 3 The second embodiment of the arc extinguishing device of the present invention is shown in FIG. 3:
- An arc extinguishing device includes a first capacitor C1, a detection switch A, the detection switch A is connected to the first capacitor C1, the detection switch A is used to detect the voltage across the load M, and the rate of change (fall rate) of the voltage across the load M When the detection switch A is turned on, the detection switch A is turned on, and the first capacitor C1 supplies power to the load M through the detection switch A;
- a charging unit B is also included.
- the charging unit B is composed of a first diode D1 (option) and a first current limiting element R1 (resistor) connected in series.
- Detection switch A a semi-controlled switch, including a second capacitor C2, a controllable device SCR1, a second current limiting element R2 (resistance, option), a second diode D2 (option), a three-terminal circuit (possible As the multiplexed mechanical switch multiplexes the first capacitor C1 for the multiplexed mechanical switch arc extinguishing selector switch), the second capacitor C2, the parallel circuit composed of the second current limiting element R2 and the second diode D2, controllable
- the trigger electrode of the device SCR1 is connected in series, and the third terminal 3 of the detection switch A can also be connected to the second terminal 2 as a two-terminal circuit (the working energy and voltage signal of the detection switch A are provided by the first capacitor C1), the third Diode D3 (option) is connected to the trigger and cathode of the controllable device SCR1.
- the mechanical switch K is closed, the voltage across the load M charges the first capacitor C1 through the charging unit B, and the voltage across the load M charges the second capacitor C2.
- the second capacitor C2 drives the controllable device SCR1 to turn on.
- the first capacitor C1 supplies power to the load M through the controllable device SCR1.
- the voltage across the load M rises rapidly, and the potential difference between the two ends of the mechanical switch K drops rapidly, reaching the arc extinguishment of the mechanical switch. purpose.
- the ground terminal of the first capacitor C1 may also be connected to the power terminal of the mechanical switch K (as shown in FIG. 4), and the third current limiting element R3 (resistor) is used to discharge the first capacitor C1 ,
- the charging unit B becomes the discharging unit B, when the switch K is closed and bouncing (during the bouncing and closing, the first capacitor C1 is quickly discharged through the mechanical switch K, the discharge unit B) or when the switch K is opened, the second capacitor C2 is driven
- the controllable device SCR1 is turned on, and the power supply supplies power to the load M through the first capacitor C1 and the controllable device SCR1.
- FIG. 5 The third embodiment of the arc extinguishing device of the present invention is shown in FIG. 5:
- An arc extinguishing device includes a first capacitor C1, a detection switch A, the detection switch A is connected to the first capacitor C1, the detection switch A is used to detect the voltage across the load M, and the rate of change (fall rate) of the voltage across the load M When the detection switch A is turned on, the detection switch A is turned on, and the first capacitor C1 supplies power to the load M through the detection switch A;
- Detection switch A It is a semi-controlled switch, which is composed of a second capacitor C2, a controllable device SCR1, and a delay unit C. It is a two-terminal circuit.
- the working energy and voltage signal of the detection switch A are provided by the first capacitor C1;
- the third terminal 3 of the detection switch A can also be connected to ground as a three-terminal circuit (when it is a three-terminal circuit, the ground terminal of the first capacitor C1 can be changed to the power supply of the power supply terminal of the mechanical switch K), voltage
- the signal is transferred to the delay unit C through the second capacitor C2, and the delay unit C drives the controllable device SCR1 to be turned on.
- Delay unit C As shown in Fig. 6, it consists of power supply circuit (fifth current limiting element R5, fifth voltage stabilizing device Z5), delay circuit (transistor Q1, semiconductor device Z7, fourth capacitor C4), semi-controlled type
- the switch thyristor SCR2, which can also be replaced by the circuit shown in FIG. 8) circuit, the power provided by the first capacitor C1 is limited by the fifth element R5, the fifth voltage stabilizing device Z5 voltage regulator provides work for the delay circuit Energy, the second capacitor C2, the second current-limiting element R2 (resistor) and the parallel circuit composed of the second diode D2, and the input circuit of the delay unit C are connected in series.
- the circuit of FIG. 7 can also be used. Note: The circuits shown in Figures 6, 7, and 8 are preferred examples, and other digital circuits may also be used.
- the mechanical switch K is connected in series with the load M, the mechanical switch K is closed, and the voltage across the load M passes the detection switch A (through its internal circuit, a charging unit B can also be added, refer to FIG. 3) to charge the first capacitor C1, The voltage across the load M charges the second capacitor C2.
- the second capacitor C2 drives the semi-controlled switch SCR2 to turn on, and drives the controllable device SCR1 to turn on through the delay circuit (the delay time must be More than 100 microseconds, so that there is a certain distance between the contacts of the mechanical switch K), the first capacitor C1 supplies power to the load M through the controllable device SCR1, the voltage across the load M rises rapidly, and the potential difference between the two ends of the mechanical switch K is rapid Down to achieve the purpose of the mechanical switch extinguishing the arc.
- the third capacitor C3, a fourth current limiting element R4 resistor
- a first charging unit B1 Composed of a first diode D1 and a first current limiting element R1 connected in series; or two Choose one
- the first voltage stabilizing device Z1 optional
- the second charging unit B2 optional, consisting of the tenth current limiting element, the tenth diode in series, or one of the two
- the fourth current limiting element R4 forms a first series circuit;
- the first charging unit B1, the first capacitor C1 form a second series circuit;
- the first capacitor C1, the detection switch A, and the third capacitor C3 form a third series circuit
- the load M is two
- the voltage at the terminal uses the first series circuit to charge the third capacitor C3, and the voltage across the load M uses the second series circuit to charge the first capacitor C1; the third capacitor C3, the second charging unit B2, and the first capacitor C1 form a fourth series In the circuit, the voltage across the load M charges the first
- the ninth diode D9 connected in parallel with the third capacitor C3 and the eighth diode D8 connected in parallel with the first capacitor C1 are used to form a discharge circuit of the capacitor.
- the capacity of the third capacitor C3 (electrolytic capacitors can be used to save volume and reduce cost) is larger than the capacity of the first capacitor C1.
- the detection switch A of this embodiment can also be applied to Embodiment 2 of the present invention.
- the first capacitor C1 with a smaller capacity can also achieve a stable arc extinguishing effect, which is particularly suitable for high voltage and high current occasions, and has the advantages of low cost, small size, and stable arc extinguishing.
- FIG. 10 The fourth embodiment of the arc extinguishing device of the present invention is shown in FIG. 10:
- the above-mentioned embodiments are packaged with insulating materials into devices (the specific shape of which can be flexibly designed as needed); when the grounding terminal of the first capacitor C1 in the above embodiment is changed to When connecting with the power supply of the power supply end of the mechanical switch K, just add one pin.
- the arc extinguishing device is a two-terminal circuit or a three-terminal circuit, which has the advantage of convenient use.
- FIG. 11 The fifth embodiment of the arc extinguishing device of the present invention is shown in FIG. 11:
- An arc extinguishing device includes a first capacitor C1, a detection switch A, a control unit D, a first switch S1 (semiconductor switch, semi-controlled device, unidirectional thyristor), the detection switch A is connected to the first capacitor C1, the detection switch A is used to detect the voltage across the load M.
- a first switch S1 semiconductor switch, semi-controlled device, unidirectional thyristor
- the rate of change (falling rate) of the voltage across the load M reaches the opening value of the detection switch A, the detection switch A is turned on, and then the control unit D controls the first switch S1 to turn on, and the first capacitor C1 supplies power to the load M through the detection switch A; in the process of the mechanical switch K breaking, and after the contact of the mechanical switch is broken for 100 microseconds (option), the first switch S1 is turned on, the first capacitor C1, the first switch S1 3.
- the detection switch A forms a series circuit for powering the load M.
- Detection switch A It is a semi-controlled switch, which is composed of a controllable device SCR1 and a second capacitor C2. It is a three-terminal circuit (one end of the second capacitor C2 can also be changed to the power supply of the power supply terminal of the mechanical switch K), it is recommended
- the detection switch A shown in Fig. 3 and Fig. 4 is used for the arc extinguishing selection switch of the multi-path mechanical switch.
- controllable device SCR1 is connected in series with a fourth diode D4 (the circuit is designed to work with the fourth diode D4 Higher than the controllable device SCR1, optional).
- an optocoupler detection unit for detecting the conduction of the detection switch A is connected (composed of an eleventh resistor R11 and the optocoupler OPT1 connected in series;
- the power supply is provided by the power supply of the mechanical switch K, or it can be provided by the first capacitor C1; the output signal of the optocoupler OPT1 is passed to the control unit D), the detection switch A is also connected to the fifth capacitor C5, and the second capacitor C2 can be driven
- the control device SCR1 (semi-control device) is turned on, and a power supply (the power supply of which is provided by the power supply of the mechanical switch K, or it can be provided by the first capacitor C1) through the fifth capacitor C5, the controllable device SCR1 To supply power to the load M, the peak current through the fifth capacitor C5 needs to be greater than the sustain current of the controllable device SCR1, and then the fifth capacitor C5 quickly enters a high-impedance state
- the mechanical switch K is closed, and the voltage across the load M charges the second capacitor C2.
- the second capacitor C2 drives the controllable device SCR1 to turn on, and then the control unit D controls the first switch S1 Conduction (the first switch S1 should be greater than 100 microseconds after the controllable device SCR1 is turned on, so that the contacts of the mechanical switch K have a certain opening distance)
- the first capacitor C1 the first switch S1
- the first The series circuit composed of four diodes D4 (option) and detection switch A supplies power to the load M.
- the voltage across the load M rises rapidly, and the potential difference across the mechanical switch K decreases rapidly, so that the mechanical switch is extinguished.
- control unit D is used to charge, or discharge, or charge (reverse pre-charge, when the first capacitor C1 is connected to the PA terminal) and discharge; the PA terminal can be connected to the power supply of the mechanical switch K
- the power connection at the terminal, the number of mechanical switches, detection switches, and loads are one, or two or more, and share the first capacitor C1, the first switch S1, and the control unit D, which can extinguish and manage the multi-way switch.
- the first capacitor C1 with a smaller capacity can also achieve a stable arc extinguishing effect, and is particularly suitable for high voltage and high current occasions, and has the advantages of low cost and stable arc extinguishing.
- FIG. 12 The sixth embodiment of the arc extinguishing device of the present invention is shown in FIG. 12:
- the fifth embodiment of the arc extinguishing device described above is placed in a housing. As a versatile product, it is connected to external mechanical switches and host computers through terminals to facilitate safety certification and popularization. Its specific shape can be based on Need flexible design.
- the detection switch A is used to detect the change rate of the voltage at the common terminal of the load M and the mechanical switch K. Since the voltage fluctuation or ripple of the power supply is much slower than the mechanical switch K at the moment of breaking, the second capacitor C2 presents a high impedance and cannot meet the drive current requirements of the controllable device SCR1.
- the present invention is particularly suitable for battery power supply systems such as electric vehicles or AC rectification power supply systems where the voltage fluctuation or ripple is large.
- the voltage signal of the detection switch A can also be provided by the power supply of the power supply terminal of the mechanical switch K (that is, the voltage across the mechanical switch K to detect the rise rate of the voltage), but it is not a preferred technical solution because the input loop of the detection switch A is It will affect the insulation withstand voltage of the mechanical switch K.
- the input circuit of the detection switch A is in series with the load M. There is also a certain safety risk.
- the preferred example is to use the detection switch A to detect the two ends of the load M.
- the first capacitor C1 and the detection switch A form a series circuit
- the load M is connected in parallel with the series circuit
- the input circuit of the detection switch A and the output circuit of the detection switch A are not electrically isolated
- the detection switch A is a semi-controlled switch, It includes a controllable device SCR1 (a semi-controlled device, a unidirectional thyristor, or a semi-controlled switch composed of a fully controlled semiconductor device, such as a thyristor equivalent circuit).
- the detection switch A of the arc extinguishing device of the present invention is composed of a second capacitor, a semiconductor device (diode, semi-controlled device), and a resistor (option), which is a two-terminal circuit or a three-terminal circuit, and detects the power supply of the switch
- the power supply is provided by the first capacitor and the second capacitor, and is provided by the non-isolated voltage at both ends of the load; it has the advantages of simple circuit, low cost, and strong overload capacity; the definition of the load of the present invention may also include a line connected to the working load.
- the detection switch A is coupled with the input signal through the second capacitor C2, and the second capacitor C2 is connected in series with the trigger M of the controllable device SCR1 to the load M (ground), or to the power supply of the power supply end of the mechanical switch K, It has the advantages of no leakage current and low loss.
- FIG. 14 is a voltage waveform diagram across the load M when the second embodiment of the arc extinguishing device of the present invention is adopted and the first capacitor C1 uses a small-capacity capacitor;
- 15 is a voltage waveform diagram across the load M when the second embodiment of the arc extinguishing device of the present invention is adopted, and the first capacitor C1 uses a large-capacity capacitor;
- 16 is a voltage waveform diagram across the load M when the third or fourth embodiment of the arc extinguishing device of the present invention is used, and the first capacitor C1 uses a small-capacity capacitor;
- the technical effects of different embodiments of the present invention are clearly observed based on the comparison of the waveform diagrams.
- the arc extinguishing device of the present invention can greatly shorten the arcing time, and can even achieve the purpose of the mechanical switch without arc interruption.
- the present invention has the advantages of strong resistance to voltage fluctuation and good arc extinguishing effect.
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Claims (25)
- 一种灭弧装置,其特征是:包括第一电容、一检测开关,所述检测开关与所述第一电容连接,所述检测开关用于检测负载与机械开关的共同端的电压的变化速率,所述变化速率达到所述检测开关开启值,所述检测开关导通,所述第一电容通过所述检测开关对所述负载供电。An arc extinguishing device is characterized by comprising a first capacitor and a detection switch, the detection switch is connected to the first capacitor, the detection switch is used to detect the rate of change of the voltage at the common terminal of the load and the mechanical switch, The change rate reaches the detection switch on value, the detection switch is turned on, and the first capacitor supplies power to the load through the detection switch.
- 根据权利要求1所述的灭弧装置,其特征是:所述检测开关为半控型开关;为二端电路,或为三端电路。The arc extinguishing device according to claim 1, characterized in that: the detection switch is a semi-controlled switch; a two-terminal circuit, or a three-terminal circuit.
- 根据权利要求1所述的灭弧装置,其特征是:所述检测开关的输入回路与所述检测开关的输出回路非电气隔离。The arc extinguishing device according to claim 1, wherein the input circuit of the detection switch and the output circuit of the detection switch are not electrically isolated.
- 根据权利要求1所述的灭弧装置,其特征是:所述第一电容与所述机械开关的电源端的电源连接。The arc extinguishing device according to claim 1, wherein the first capacitor is connected to the power supply of the power supply end of the mechanical switch.
- 根据权利要求1所述的灭弧装置,其特征是:所述变化速率为下降速率,所述电压为所述负载两端的电压,或所述共同端与所述第一电容之间的电压;或所述变化速率为上升速率,所述电压为所述机械开关两端的电压。The arc extinguishing device according to claim 1, wherein the rate of change is a rate of decrease, and the voltage is a voltage across the load, or a voltage between the common terminal and the first capacitor; Or the rate of change is the rate of rise, and the voltage is the voltage across the mechanical switch.
- 根据权利要求5所述的灭弧装置,其特征是:所述检测开关包括第二电容、一可控型器件,所述电压通过所述第二电容驱动所述可控型器件导通;或所述电压通过所述第一电容、所述第二电容驱动所述可控型器件导通,所述检测开关的工作能量、电压信号由所述第一电容提供。The arc extinguishing device according to claim 5, wherein the detection switch includes a second capacitor and a controllable device, and the voltage drives the controllable device to conduct through the second capacitor; or The voltage drives the controllable device through the first capacitor and the second capacitor, and the operating energy and voltage signal of the detection switch are provided by the first capacitor.
- 根据权利要求5所述的灭弧装置,其特征是:所述检测开关由第二电容、电阻、半导体器件组成。The arc extinguishing device according to claim 5, wherein the detection switch is composed of a second capacitor, a resistor, and a semiconductor device.
- 根据权利要求1所述的灭弧装置,其特征是:所述检测开关包括一可控型器件,第二电容,所述电压对所述第二电容充电,在所述变化速率达到所述检测开关开启值时,所述第二电容驱动所述可控器件导通。The arc extinguishing device according to claim 1, wherein the detection switch includes a controllable device, a second capacitor, the voltage charges the second capacitor, and the detection is reached at the rate of change When the switch is turned on, the second capacitor drives the controllable device to turn on.
- 根据权利要求8所述的灭弧装置,其特征是:所述可控型器件为半控型器件。The arc extinguishing device according to claim 8, wherein the controllable device is a semi-controlled device.
- 根据权利要求8所述的灭弧装置,其特征是:还包括由第二限流元件、第二二极管组成的并联电路,所述第二电容、所述并联电路、所述可控器件的触发极串联。The arc extinguishing device according to claim 8, further comprising a parallel circuit composed of a second current limiting element and a second diode, the second capacitor, the parallel circuit, and the controllable device Is connected in series.
- 根据权利要求1所述的灭弧装置,其特征是:所述电压为所述负载两端的电压,所述检测开关包括一可控型器件,第二电容,所述第一电容通过所述第二电容驱动所述可控器件导通;还包括一充电单元,所述充电单元由第一二极管、第一限流元件串联组成,所述电压通过所述充电单元对所述第一电容充电;所述检测开关还包括第二二极管,所述第一电容通过所述第二二极管、所述第二电容驱动所述可控器件导通;所述第二二极管、所述第二电容的 共同端与所述第一二极管、所述第一限流元件的共同端连接。The arc extinguishing device according to claim 1, wherein the voltage is a voltage across the load, the detection switch includes a controllable device, a second capacitor, and the first capacitor passes the Two capacitors drive the controllable device to turn on; it also includes a charging unit, which is composed of a first diode and a first current limiting element connected in series, and the voltage passes through the charging unit to the first capacitor Charging; the detection switch further includes a second diode, and the first capacitor drives the controllable device to turn on through the second diode and the second capacitor; the second diode, The common terminal of the second capacitor is connected to the common terminal of the first diode and the first current limiting element.
- 根据权利要求1至10所述的灭弧装置,其特征是:还包括一用于对所述第一电容充电的充电单元。The arc extinguishing device according to claims 1 to 10, further comprising a charging unit for charging the first capacitor.
- 根据权利要求12所述的灭弧装置,其特征是:所述充电单元为第一限流元件,或由第一二极管、第一限流元件串联组成,所述电压通过所述充电单元对所述第一电容充电。The arc extinguishing device according to claim 12, wherein the charging unit is a first current limiting element, or is composed of a first diode and a first current limiting element connected in series, and the voltage passes through the charging unit Charge the first capacitor.
- 根据权利要求12所述的灭弧装置,其特征是:其采用绝缘材料封装成器件。The arc extinguishing device according to claim 12, characterized in that it is packaged into a device using an insulating material.
- 根据权利要求1至5所述的灭弧装置,其特征是:所述检测开关由第二电容、一可控型器件、一延时单元组成,所述电压信号通过所述第二电容传递至所述延时单元,所述延时单元驱动所述可控型器件导通。The arc extinguishing device according to claims 1 to 5, wherein the detection switch is composed of a second capacitor, a controllable device, and a delay unit, and the voltage signal is transmitted to the second capacitor The delay unit drives the controllable device to turn on.
- 根据权利要求15所述的灭弧装置,其特征是:所述延时单元由供电电路、延时电路、半控型开关电路组成,所述供电电路由第五限流元件、第五稳压器件组成,所述第一电容提供的工作电源通过所述第五元件限流,所述第五稳压器件稳压为所述延时电路提供工作能量。The arc extinguishing device according to claim 15, wherein the delay unit is composed of a power supply circuit, a delay circuit, and a semi-controlled switching circuit, and the power supply circuit is composed of a fifth current limiting element and a fifth voltage regulator The device is composed of an operating power supply provided by the first capacitor through the fifth element, and the fifth voltage stabilizing device regulates voltage to provide operating energy for the delay circuit.
- 根据权利要求15所述的灭弧装置,其特征是:还包括第三电容、第四限流元件、第一充电单元,所述电压为所述负载两端的电压,所述第三电容、所述第四限流元件组成第一串联电路;所述第一充电单元、所述第一电容组成第二串联电路;所述第一电容、所述检测开关、所述第三电容组成第三串联电路,所述电压利用所述第一串联电路对所述第三电容充电,所述电压利用所述第二串联电路对所述第一电容充电,在所述机械开关分断过程中,所述第三串联电路对所述负载供电。The arc extinguishing device according to claim 15, further comprising: a third capacitor, a fourth current limiting element, and a first charging unit, the voltage is the voltage across the load, the third capacitor, all The fourth current limiting element constitutes a first series circuit; the first charging unit and the first capacitor constitute a second series circuit; the first capacitor, the detection switch, and the third capacitor constitute a third series Circuit, the voltage uses the first series circuit to charge the third capacitor, the voltage uses the second series circuit to charge the first capacitor, and during the mechanical switch breaking process, the first Three series circuits power the load.
- 根据权利要求17所述的灭弧装置,其特征是:还包括第一稳压器件,所述第一稳压器件与所述第三电容并联,所述第三电容或并联一二极管。The arc extinguishing device according to claim 17, further comprising a first voltage stabilizing device, the first voltage stabilizing device is connected in parallel with the third capacitor, and the third capacitor or a diode is connected in parallel.
- 根据权利要求18所述的灭弧装置,其特征是:还包括第二充电单元,所述第三电容的容量大于所述第一电容的容量,所述第三电容、所述第二充电单元、所述第一电容组成第四串联电路,所述电压利用第四串联电路对所述第一电容、所述第三电容充电。The arc extinguishing device according to claim 18, further comprising a second charging unit, the capacity of the third capacitor is greater than that of the first capacitor, the third capacitor, the second charging unit The first capacitor forms a fourth series circuit, and the voltage uses the fourth series circuit to charge the first capacitor and the third capacitor.
- 根据权利要求15所述的灭弧装置,其特征是:其采用绝缘材料封装成器件。The arc extinguishing device according to claim 15, characterized in that it is packaged into a device using an insulating material.
- 根据权利要求1至10所述的灭弧装置,其特征是:还包括一控制单元、第一开关,所述第一电容、所述第一开关、所述检测开关组成串联电路,所述控制单元在所述机械开关分断过程中,所述串联电路用于对所述负载供电。The arc extinguishing device according to claims 1 to 10, characterized in that it further comprises a control unit, a first switch, the first capacitor, the first switch, and the detection switch form a series circuit, and the control During the process of the mechanical switch breaking, the series circuit is used to supply power to the load.
- 根据权利要求21灭弧装置,其特征是:其放置一外壳内,通过端子与所述机械开关连接。The arc extinguishing device according to claim 21, characterized in that it is placed in a housing and connected to the mechanical switch through a terminal.
- 根据权利要求21灭弧装置,其特征是:所述第一电容与所述第一开关组成的串联电路 与所述检测开关之间,连接一用于所述检测检测开关导通的光耦检测单元,所述光耦检测单元的输出信号传递至所述控制单元,所述检测开关还连接第五电容,一电源通过所述第五电容、所述检测开关对所述负载供电。The arc extinguishing device according to claim 21, characterized in that: a photocoupler for conducting the detection detection switch is connected between the series circuit composed of the first capacitor and the first switch and the detection switch Unit, the output signal of the optocoupler detection unit is transferred to the control unit, the detection switch is also connected to a fifth capacitor, and a power supply supplies power to the load through the fifth capacitor and the detection switch.
- 根据权利要求1至5所述的灭弧装置,其特征是:还包括一放电单元,所述第一电容与所述机械开关的电源端的电源连接,所述第一电容通过所述机械开关、所述放电单元放电。The arc extinguishing device according to claims 1 to 5, characterized by further comprising a discharge unit, the first capacitor is connected to the power supply of the power supply terminal of the mechanical switch, the first capacitor passes through the mechanical switch, The discharge unit discharges.
- 根据权利要求24所述的灭弧装置,其特征是:所述放电单元由第一二极管、第一限流元件串联组成。The arc extinguishing device according to claim 24, wherein the discharge unit is composed of a first diode and a first current limiting element connected in series.
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070064356A1 (en) * | 2003-10-28 | 2007-03-22 | Noboru Wakatsuki | Electric contact switching device and power consumption control circuit |
CN101256907A (en) * | 2008-03-20 | 2008-09-03 | 上海交通大学 | Non-arc breaking circuit based on variable capacitance and method thereof |
CN106024455A (en) * | 2016-06-14 | 2016-10-12 | 清华大学 | Non-arcing hybrid DC circuit breaker and method for achieving non-arcing breaking and closing |
CN206471248U (en) * | 2016-01-24 | 2017-09-05 | 广州市金矢电子有限公司 | Direct current arc extinguishing power device drive device and arc-control device |
CN107332222A (en) * | 2017-07-28 | 2017-11-07 | 尹向阳 | One kind is applied to powerful dc switch arc-control device |
DE202017006818U1 (en) * | 2017-04-11 | 2018-07-06 | Dehn + Söhne Gmbh + Co. Kg | Separation and switching device for overvoltage protection, in particular for DC systems |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102074394B (en) * | 2010-11-18 | 2014-07-09 | Asco电力技术公司 | Arc-extinguishing switch and switching method thereof |
CN106847581B (en) * | 2016-01-24 | 2018-03-23 | 广州市金矢电子有限公司 | Electronic arc eliminating feedback device and arc-control device |
-
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070064356A1 (en) * | 2003-10-28 | 2007-03-22 | Noboru Wakatsuki | Electric contact switching device and power consumption control circuit |
CN101256907A (en) * | 2008-03-20 | 2008-09-03 | 上海交通大学 | Non-arc breaking circuit based on variable capacitance and method thereof |
CN206471248U (en) * | 2016-01-24 | 2017-09-05 | 广州市金矢电子有限公司 | Direct current arc extinguishing power device drive device and arc-control device |
CN106024455A (en) * | 2016-06-14 | 2016-10-12 | 清华大学 | Non-arcing hybrid DC circuit breaker and method for achieving non-arcing breaking and closing |
DE202017006818U1 (en) * | 2017-04-11 | 2018-07-06 | Dehn + Söhne Gmbh + Co. Kg | Separation and switching device for overvoltage protection, in particular for DC systems |
CN107332222A (en) * | 2017-07-28 | 2017-11-07 | 尹向阳 | One kind is applied to powerful dc switch arc-control device |
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