Reclosure

Abstract

The utility model discloses a reclosing device. The reclosing device comprises a reclosing mode selection module, a driving execution mechanism and a control module. A first input end of the mode selection module is used for inputting a first power supply signal, a second input end of the mode selection module is used for inputting a second power supply signal, and the mode selection module is used for outputting a first signal through a first output end and outputting a second signal through a second output end according to the first power supply signal and the second power supply signal; the control module is used for determining the working mode of reclosing according to the first signal and the second signal; wherein the working mode comprises a normal working mode and an aging test mode; the mode selection module can realize input of two state signals through level overturning of the first power supply signal and the second power supply signal, and the number of fixed terminals required by reclosing is reduced. On the basis that the space of the reclosure for arranging the fixed terminal is limited, the signal function defined by the input terminal of the reclosure can be added, and the terminal practicability of the reclosure is improved.

Description

Technical Field

[0001] The embodiment of the utility model relates to the technical field of low-voltage electrical appliances, in particular to a reclosing switch. Background Art

[0002] The space for setting input terminals on the reclosing switch is limited, so that only necessary or common functions can be defined for the input terminals on the reclosing switch, which limits the functions of signals input through the input terminals and reduces the practicality of the terminals of the reclosing switch. Content of the Utility Model

[0003] The utility model provides a reclosing switch to improve the practicality of the terminals of the reclosing switch.

[0004] In a first aspect, the embodiment of the utility model provides a reclosing switch, which includes a mode selection module, a driving actuator and a control module;

[0005] The first input end of the mode selection module is used for inputting a first power signal, the second input end of the mode selection module is used for inputting a second power signal, the first signal output end of the mode selection module is connected to the first start signal input end of the control module, the second signal output end of the mode selection module is connected to the second start signal input end of the control module, the first control output end of the control module is connected to the driving actuator, and the mode selection module is used for outputting a first signal through the first output end and outputting a second signal through the second output end according to the first power signal and the second power signal; the control module is used for determining the working mode of the reclosing switch according to the first signal and the second signal, and controlling the driving actuator to act based on the working mode of the reclosing switch; wherein, the working mode of the reclosing switch includes a normal working mode and an aging test mode, and one of the first power signal and the second power signal is a high-level signal and the other is a low-level signal.

[0006] Optionally, the mode selection module includes an input terminal, a first optocoupler unit and a second optocoupler unit;

[0007] The first end of the input terminal is used for inputting the first power signal, the primary positive end of the first optocoupler unit and the primary negative end of the second optocoupler unit are connected to the first end of the input terminal, the second end of the input terminal is used for inputting the second power signal, the primary negative end of the first optocoupler unit and the primary positive end of the second optocoupler unit are connected to the second end of the input terminal, the first end of the secondary of the first optocoupler unit serves as the first signal output end of the mode selection module, the first end of the secondary of the second optocoupler unit serves as the second signal output end of the mode selection module, and the second end of the secondary of the first optocoupler unit and the second end of the secondary of the second optocoupler unit are grounded.

[0008] Optionally, the first optocoupler unit includes a first optocoupler and a first pull-up resistor; the second optocoupler unit includes a second optocoupler and a second pull-up resistor; the positive terminal of the emitter of the first optocoupler and the negative terminal of the emitter of the second optocoupler are connected to the first end of the input terminal, the negative terminal of the emitter of the first optocoupler and the positive terminal of the emitter of the second optocoupler are connected to the second end of the input terminal, the first end of the photoreceiver of the first optocoupler is connected to the first end of the first pull-up resistor and serves as the first signal output terminal of the mode selection module, the second end of the first pull-up resistor is connected to the first power supply terminal, and the second end of the photoreceiver of the first optocoupler is grounded; the first end of the photoreceiver of the second optocoupler is connected to the first end of the second pull-up resistor and serves as the second signal output terminal of the mode selection module, the second end of the second pull-up resistor is connected to the first power supply terminal, and the second end of the photoreceiver of the second optocoupler is grounded.

[0009] Optionally, the mode selection module further includes a first current-limiting resistor and a second current-limiting resistor. The first end of the first current-limiting resistor is connected to the first end of the input terminal, and the second end of the first current-limiting resistor is connected to the primary positive terminal of the first optocoupler unit and the primary negative terminal of the second optocoupler unit. The first end of the second current-limiting resistor is connected to the second end of the input terminal, and the second end of the second current-limiting resistor is connected to the primary negative terminal of the first optocoupler unit and the primary positive terminal of the second optocoupler unit.

[0010] Optionally, the mode selection module further includes a state selection unit. The state selection unit is connected between the first end of the input terminal and the first current-limiting resistor, and the state selection unit is configured to select the operating state of the mode selection module according to the voltage of the first power signal.

[0011] Optionally, the state selection unit includes a zener diode. The negative terminal of the zener diode is connected to the first end of the input terminal, and the positive terminal of the zener diode is connected to the first end of the first current-limiting resistor.

[0012] Optionally, the reclosing also includes a display module. The display module is connected to the control module, and the control module is further configured to control the display of the display module according to the operating state of the drive actuator.

[0013] Optionally, the display module includes a third current-limiting resistor, a first display unit, and a second display unit. The first end of the third current-limiting resistor is connected to the second power supply terminal. The second end of the third current-limiting resistor is connected to the first end of the first display unit and the first end of the second display unit. The second end of the first display unit is connected to the second control output terminal of the control module. The second end of the second display unit is connected to the third control output terminal of the control module. The equivalent impedance of the first display unit is less than that of the second display unit. The control module is configured to control the display states of the first display unit and the second display unit according to the operating state of the reclosing switch.

[0014] Optionally, the display characterization information of the first display unit is different from that of the second display unit.

[0015] Optionally, the first display unit includes a first-color light-emitting diode, and the second display unit includes a second-color light-emitting diode;

[0016] The first pole of the first-color light-emitting diode and the first pole of the second-color light-emitting diode are connected to the second end of the third current-limiting resistor. The second pole of the first-color light-emitting diode is connected to the second control output terminal of the control module. The second pole of the second-color light-emitting diode is connected to the third control output terminal of the control module. The forward voltage of the PN junction of the first-color light-emitting diode is less than that of the second-color light-emitting diode.

[0017] In the technical solution of the embodiment of the present invention, by providing that the first input terminal of the mode selection module is used to input a first power signal, and the second input terminal of the mode selection module is used to input a second power signal, one of the first power signal and the second power signal is a high-level signal, and the other is a low-level signal. The mode selection module can realize the input of two state signals by the level inversion of the first power signal and the second power signal, reducing the number of fixed terminals required for the reclosing switch. On the basis that the space for setting fixed terminals of the reclosing switch is limited, the signal function defined by the input terminals of the reclosing switch can be increased, improving the practicality of the terminals of the reclosing switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of an input circuit of an input terminal of a reclosing switch provided for the related art;

[0019] Figure 2 A schematic diagram of the structure of a reclosing switch provided by an embodiment of the present invention;

[0020] Figure 3 A schematic diagram of the structure of a mode selection module provided by an embodiment of the present invention;

[0021] Figure 4 Schematic diagram of another mode selection module provided by an embodiment of the present utility model;

[0022] Figure 5 Schematic diagram of another reclosing provided by an embodiment of the present utility model;

[0023] Figure 6 Schematic diagram of a display module provided by an embodiment of the present utility model;

[0024] Figure 7 Schematic diagram of another display module provided by an embodiment of the present utility model. Detailed implementation manners

[0025] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the sake of description, only parts related to the present utility model are shown in the drawings rather than all the structures.

[0026] Figure 1 Schematic diagram of the input circuit of an input terminal of an electric opening and closing provided for the related art. As Figure 1 shown, the input terminal JP2 is an external terminal, having a first port 1 and a second port 2. When the power signal of DC 24V is not connected, the primary of the optocoupler U3 does not emit light, and the potential of the first end mDI of the secondary of the optocoupler U3 is the potential of the power signal provided by the power supply terminal VCC passing through the pull-up resistor Rt, which is a high level. At this time, the control module in the electric opening and closing determines that there is no signal input according to the high-level signal provided by the input circuit. When the negative potential 24V- and the positive potential 24V+ of the power signal of DC 24V are connected and drive the primary of the optocoupler U3 to emit light after being limited by the first resistor R7 and the second resistor R6 respectively, the potential of the first end mDI of the secondary of the optocoupler U3 is pulled down to the ground GND potential of the second end of the secondary. At this time, the control module in the electric opening and closing determines that there is a signal input according to the low-level signal provided by the input circuit, realizing the signal input function of the external terminal. It can be seen from the above process that the input terminal JP2 can be used to define the signal input function. When the space for setting the input terminal JP2 on the electric opening and closing is limited, the use of the input terminal JP2 to define the signal input function is limited, reducing the practicality of the terminals of the electric opening and closing.

[0027] In view of the above technical problems, an embodiment of the present utility model provides a reclosing. Figure 2 Schematic diagram of a reclosing provided by an embodiment of the present utility model. As Figure 2As shown in the figure, the reclosing device includes a mode selection module 30, a driving actuator 20, and a control module 10. The first input terminal in1 of the mode selection module 30 is used to input a first power signal, and the second input terminal in2 of the mode selection module 30 is used to input a second power signal. The first signal output terminal out1 of the mode selection module 30 is connected to the first start signal input terminal in3 of the control module 10, and the second signal output terminal out2 of the mode selection module 30 is connected to the second start signal input terminal in4 of the control module 10. The first control output terminal out3 of the control module 10 is connected to the driving actuator 20. The mode selection module 30 is used to output a first signal through the first output terminal out1 and a second signal through the second output terminal out2 according to the first power signal and the second power signal. The control module 10 is further used to determine the working mode of the reclosing device according to the first signal and the second signal, and control the driving actuator 20 to act based on the working mode of the reclosing device. Among them, the working mode of the reclosing device includes a normal working mode and an aging test mode, and one of the first power signal and the second power signal is a high-level signal, and the other is a low-level signal.

[0028] Specifically, one of the first power signal and the second power signal is a high-level signal, and the other is a low-level signal. When the level of the first power signal is high, the level of the second power signal is low. For example, the first power signal can be a DC signal with a voltage of 24V, and the second power signal can be a DC signal with a voltage of 0V. When the level of the first power signal is low, the level of the second power signal is high. For example, the first power signal can be a DC signal with a voltage of 0V, and the second power signal can be a DC signal with a voltage of 24V. The mode selection module 30 can realize the input of two state signals by flipping the levels of the first power signal and the second power signal.

[0029] The reclosing switch can include a normal operation mode and an aging test mode. When the level of the first power signal is high and the level of the second power signal is low, the first signal can be a low-level signal and the second signal can be a high-level signal. The control module 10 can use the low-level signal input from the first start signal input terminal in3 as an aging test instruction, causing the reclosing switch to enter the aging test mode, and controlling the drive to perform logical control of the actuator 20 in the aging test mode. When the level of the first power signal is low and the level of the second power signal is high, the first signal can be a high-level signal and the second signal can be a low-level signal. The control module 10 can determine that the reclosing switch is in the normal operation mode according to the low-level signal input from the second start signal input terminal in4. The control module 10 performs logical control of the drive actuator 20 in the normal operation mode. Thus, two state signals can be input through the mode selection module 30, reducing the number of fixed terminals required for the reclosing switch. Based on the limited space for setting fixed terminals in the reclosing switch, the signal function defined by the input terminals of the reclosing switch can be increased, improving the practicality of the terminals of the reclosing switch. Among them, the reclosing switch can be any controllable reclosing switch. Exemplarily, the reclosing switch can be an electric switching product or a dual-power supply product.

[0030] In the technical solution of this embodiment, by setting the first input terminal of the mode selection module to input the first power signal and the second input terminal of the mode selection module to input the second power signal, one of the first power signal and the second power signal is a high-level signal and the other is a low-level signal. The mode selection module can achieve the input of two state signals by flipping the levels of the first power signal and the second power signal, reducing the number of fixed terminals required for the reclosing switch. Based on the limited space for setting fixed terminals in the reclosing switch, the signal function defined by the input terminals of the reclosing switch can be increased, improving the practicality of the terminals of the reclosing switch.

[0031] Figure 3 It is a schematic structural diagram of a mode selection module provided by an embodiment of the present invention. As Figure 3As shown in the figure, the mode selection module 30 includes an input terminal 310, a first optocoupler unit 320, and a second optocoupler unit 330. The first end J1 of the input terminal 310 is used to input a first power signal. The primary positive end of the first optocoupler unit 320 and the primary negative end of the second optocoupler unit 330 are connected to the first end J1 of the input terminal 310. The second end J2 of the input terminal 310 is used to input a second power signal. The primary negative end of the first optocoupler unit 320 and the primary positive end of the second optocoupler unit 330 are connected to the second end J2 of the input terminal 310. The first secondary end of the first optocoupler unit 320 serves as the first signal output terminal out1 of the mode selection module 30, and the first secondary end of the second optocoupler unit 330 serves as the second signal output terminal out2 of the mode selection module 30. The second secondary end of the first optocoupler unit 320 and the second secondary end of the second optocoupler unit 330 are grounded to GND.

[0032] Specifically, the first end J1 of the input terminal 310 serves as the first input end in1 of the mode selection module 30, and the second end J2 of the input terminal 310 serves as the second input end in2 of the mode selection module 30. When the level of the first power signal is high and the level of the second power signal is low, the level of the primary positive end of the first optocoupler unit 320 is high, and the level of the primary negative end of the first optocoupler unit 320 is low. The first optocoupler unit 320 can emit light and output a first signal with a low level according to the optical signal. The level of the primary positive end of the second optocoupler unit 330 is low, and the level of the primary negative end of the second optocoupler unit 330 is high. The second optocoupler unit 330 does not emit light, so that the second optocoupler unit 330 outputs a second signal with a high level. At this time, the first signal with a low level and the second signal with a high level serve as the aging test instructions, and the control module 10 enters the aging test mode according to the aging test instructions and performs logical control of the aging test mode on the drive actuator 20. When the level of the first power signal is low and the level of the second power signal is high, the level of the primary positive end of the first optocoupler unit 320 is low, and the level of the primary negative end of the first optocoupler unit 320 is high. The first optocoupler unit 320 does not emit light, so that the first optocoupler unit 320 outputs a first signal with a high level. The level of the primary positive end of the second optocoupler unit 330 is high, and the level of the primary negative end of the second optocoupler unit 330 is low. The second optocoupler unit 330 emits light and outputs a second signal with a low level according to the optical signal. At this time, the first signal with a high level and the second signal with a low level serve as the normal operation instructions, and the control module 10 enters the normal operation mode according to the normal operation instructions and performs logical control of the normal operation mode on the drive actuator 20.

[0033] Figure 4 It is a schematic structural diagram of another mode selection module provided by an embodiment of the present invention. As Figure 4As shown, the first optocoupler unit 320 includes a first optocoupler U1 and a first pull-up resistor R1; the second optocoupler unit 330 includes a second optocoupler U2 and a second pull-up resistor R2; the positive terminal of the emitter of the first optocoupler U1 and the negative terminal of the emitter of the second optocoupler U2 are connected to the first end J1 of the input terminal 310, the negative terminal of the emitter of the first optocoupler U1 and the positive terminal of the emitter of the second optocoupler U2 are connected to the second end J2 of the input terminal 310, the first end of the receiver of the first optocoupler U1 is connected to the first end of the first pull-up resistor R1 and serves as the first signal output terminal out1 of the mode selection module 30, the second end of the first pull-up resistor R1 is connected to the first power supply terminal VCC1, and the second end of the receiver of the first optocoupler U1 is grounded to GND; the first end of the receiver of the second optocoupler U2 is connected to the first end of the second pull-up resistor R2 and serves as the second signal output terminal out2 of the mode selection module 30, the second end of the second pull-up resistor R2 is connected to the first power supply terminal VCC1, and the second end of the receiver of the second optocoupler U2 is grounded to GND.

[0034] Specifically, when the level of the first power signal is high and the level of the second power signal is low, the positive terminal of the emitter of the first optocoupler U1 is high, the negative terminal of the emitter of the first optocoupler U1 is low, and the emitter of the first optocoupler U1 emits light. The receiver of the first optocoupler U1 conducts according to the optical signal, causing the potential of the first end of the receiver of the first optocoupler U1 to be pulled down by the ground potential of the second end. At this time, the first end of the receiver of the first optocoupler U1 outputs a low level, that is, the first signal output by the first signal output terminal out1 of the mode selection module 30 is low. The positive terminal of the emitter of the second optocoupler U2 is low, the negative terminal of the emitter of the second optocoupler U2 is high, the emitter of the second optocoupler U2 does not emit light, the receiver of the second optocoupler U2 is in an open state, and the potential of the first end of the receiver of the second optocoupler U2 is determined to be high according to the first power supply provided by the first power supply terminal VCC1 and the second pull-up resistor R2, that is, the second signal output by the second signal output terminal out2 of the mode selection module 30 is high.

[0035] When the level of the first power signal is low and the level of the second power signal is high, the positive terminal of the light emitter of the first optocoupler U1 is at a low level, the negative terminal of the light emitter of the first optocoupler U1 is at a high level, and the light emitter of the first optocoupler U1 does not emit light. The light receiver of the first optocoupler U1 is in an open state. The potential of the first terminal of the light receiver of the first optocoupler U1 is determined to be high according to the first power supply provided by the first power supply terminal VCC1 and the first pull-up resistor R1, that is, the first signal output by the first signal output terminal out1 of the mode selection module 30 is high. The positive terminal of the light emitter of the second optocoupler U2 is at a high level, the negative terminal of the light emitter of the second optocoupler U2 is at a low level, the light emitter of the second optocoupler U2 emits light, and the light receiver of the second optocoupler U2 conducts according to the optical signal, so that the potential of the first terminal of the light receiver of the second optocoupler U2 is pulled down by the ground potential of the second terminal. At this time, a low level is output at the first terminal of the light receiver of the second optocoupler U2, that is, the second signal output by the second signal output terminal out2 of the mode selection module 30 is low.

[0036] Continue to refer to Figure 3 and Figure 4 As shown in FIGS. 7 and 8, the mode selection module 30 further includes a first current limiting resistor R3 and a second current limiting resistor R4. The first end of the first current limiting resistor R3 is connected to the first end J1 of the input terminal 310, and the second end of the first current limiting resistor R3 is connected to the primary positive end of the first optocoupler unit 320 and the primary negative end of the second optocoupler unit 330. The first end of the second current limiting resistor R4 is connected to the second end J2 of the input terminal 310, and the second end of the second current limiting resistor R4 is connected to the primary negative end of the first optocoupler unit 320 and the primary positive end of the second optocoupler unit 330.

[0037] Specifically, the first current limiting resistor R3 is used to limit the current provided by the first end J1 of the input terminal 310, and the second current limiting resistor R4 is used to limit the current provided by the second end J2 of the input terminal 310, so as to achieve current limiting protection for the first optocoupler unit 320 and the second optocoupler unit 330.

[0038] Continue to refer to Figure 3 and Figure 4 As shown in FIGS. 9 and 10, the mode selection module 30 further includes a state selection unit 340. The state selection unit 340 is connected between the first end J1 of the input terminal 310 and the first current limiting resistor R3, and the state selection unit 340 is used to select the working state of the mode selection module 30 according to the voltage of the first power signal.

[0039] Specifically, the state selection unit 340 has a threshold voltage. When the absolute values of the voltages of the first power supply signal and the second power supply signal are less than the threshold voltage, the conduction direction of the state selection unit 340 is unidirectional, pointing from the first current limiting resistor R3 to the first end J1 of the input terminal 310. When the level of the first power supply signal is high and the level of the second power supply signal is low, the state selection unit 340 is in a cut-off state, and the reclosing cannot work. When the level of the first power supply signal is low and the level of the second power supply signal is high, the state selection unit 340 is in a conducting state. At this time, the mode selection module 30 can only output one input signal, which is a normal operation instruction. When the absolute values of the voltages of the first power supply signal and the second power supply signal are greater than the threshold voltage, the conduction direction of the state selection unit 340 is bidirectional. At this time, the mode selection module 30 can include two input signals, namely an aging test instruction and a normal operation instruction. By setting the state selection unit 340, the voltage difference setting of different input signals can be realized, thereby improving the difference of drive signals in different working states and enhancing the drive reliability of the reclosing.

[0040] Exemplarily, the reclosing includes an aging test mode and a normal operation mode. When the absolute values of the voltages of the first power supply signal and the second power supply signal are less than the threshold voltage, when the level of the first power supply signal is high and the level of the second power supply signal is low, the state selection unit 340 is in a cut-off state, and the reclosing cannot work. When the level of the first power supply signal is low and the level of the second power supply signal is high, the state selection unit 340 is in a conducting state, and the control module 10 enters the normal operation mode according to the second signal. At this time, the reclosing can only work in the normal operation mode. When the absolute values of the voltages of the first power supply signal and the second power supply signal are greater than the threshold voltage, the conduction direction of the state selection unit 340 is bidirectional, and the control module 10 can enter the aging test mode or the normal operation mode according to the first signal and the second signal. At this time, the reclosing can work in the aging test mode and the normal operation mode. By setting the state selection unit 340, the voltage difference setting of the input signals in the normal operation mode and the aging test mode can be realized, thereby improving the difference of drive signals in different modes and enhancing the drive reliability of the reclosing.

[0041] Continue to refer to Figure 3 and Figure 4 , the state selection unit 340 includes a zener diode ZD1. The negative end of the zener diode ZD1 is connected to the first end J1 of the input terminal 310, and the positive end of the zener diode ZD1 is connected to the first end of the first current limiting resistor R3.

[0042] Specifically, when the negative terminal voltage of the voltage stabilizing diode ZD1 is less than its reverse breakdown voltage, the voltage stabilizing diode ZD1 is a unidirectional conduction device, pointing from the positive terminal of the voltage stabilizing diode ZD1 to the negative terminal. At this time, the reclosing can only work in the normal working mode. When the negative terminal voltage of the voltage stabilizing diode ZD1 is greater than its reverse breakdown voltage, the voltage stabilizing diode ZD1 can conduct bidirectionally, and at this time, the reclosing can work in the aging test mode and the normal working mode.

[0043] Figure 5 Another structural schematic diagram of the reclosing provided by the embodiment of the present invention. As Figure 5 shown, the reclosing further includes a display module 40. The display module 40 is connected to the control module 10, and the control module 10 is further configured to control the display of the display module 40 according to the operating state of the driving actuator 20.

[0044] Specifically, the display module 40 has a display function and is used to display some operating information of the reclosing. Exemplarily, when the display module 40 includes an indicator light, such as a light-emitting diode or a digital diode, etc. The display module 40 can indicate different operating states of the reclosing through different indicator lights. For example, the flashing or constant lighting of a green light-emitting diode or a digital diode can indicate that the reclosing is operating normally, and the flashing or constant lighting of a red light-emitting diode or a digital diode can indicate that the reclosing has an operating fault, etc.

[0045] In some embodiments, the display module 40 may further include a display, such as a liquid crystal display (LCD) or an organic light-emitting diode (OLED) display, for displaying the operating information of the reclosing.

[0046] Figure 6 A structural schematic diagram of a display module provided by the embodiment of the present invention. As Figure 6 shown, the display module 40 includes a third current-limiting resistor R5, a first display unit 410, and a second display unit 420. The first end of the third current-limiting resistor R5 is connected to the second power supply terminal VCC2, the second end of the third current-limiting resistor R5 is connected to the first end of the first display unit 410 and the first end of the second display unit 420, the second end of the first display unit 410 is connected to the second control output terminal out4 of the control module 10, and the second end of the second display unit 420 is connected to the third control output terminal out5 of the control module 10; the equivalent impedance of the first display unit 410 is less than the equivalent impedance of the second display unit 420; the control module 10 is configured to control the display states of the first display unit 410 and the second display unit 420 according to the operating state of the reclosing.

[0047] Specifically, the third current-limiting resistor R5 has a current-limiting effect and is used to limit the current of the second power supply provided by the second power supply terminal VCC2 flowing to the first display unit 410 and the second display unit 420. The first ends of the first display unit 410 and the second display unit 420 are both connected to the second power supply terminal VCC2 through the third current-limiting resistor R5, so that the potentials of the first ends of the first display unit 410 and the second display unit 420 are equal. The high and low levels of the second output signal output by the second control output terminal out4 of the control module 10 and the third output signal output by the third control output terminal out5 of the control module 10 can be determined according to the operating state of the reclosing. Among them, the operating state of the reclosing can include a normal state, a fault state, and a display control abnormal state. When the operating state of the reclosing is different, the high and low levels of the second output signal and the third output signal output by the control module 10 are different, so that the display states of the first display unit 410 and the second display unit 420 can be controlled. Exemplarily, when the reclosing is in a fault state, the second output signal output by the control module 10 can be a low level, the third output signal can be a high level, there is a voltage difference across the first display unit 410, and the first display unit 410 displays. Both ends of the second display unit 420 are at a high level, and the second display unit 420 does not display. When the reclosing is in a normal state, the second output signal output by the control module 10 can be a high level, the third output signal can be a low level, there is a voltage difference across the second display unit 420, and the second display unit 420 displays. Both ends of the first display unit 410 are at a high level, and the first display unit 410 does not display. When the reclosing is in a display control abnormal state, the second output signal and the third output signal output by the control module 10 can both be low levels. At this time, the equivalent impedance of the first display unit 410 is less than the equivalent impedance of the second display unit 420, and the first display unit 410 takes precedence over the second display unit 420 to display. Therefore, when the reclosing is in a display control abnormal state, the first display unit 410 can be used for display, avoiding the problem of unclear indication states caused by the first display unit 410 and the second display unit 420 being lit simultaneously without adding additional control logic, and improving the reliability of the display.

[0048] In some embodiments, when the operating state of the reclosing switch further includes an aging test state, the different operating states of the reclosing switch can also be characterized by the multi-state output of the first display unit 410 and the second display unit 420. Exemplarily, when the reclosing switch is in a fault state, the second output signal output by the control module 10 can be a low level or alternately set high and low levels, the third output signal can be a high level, the first display unit 410 is always on or flashing, and the second display unit 420 is off. When the reclosing switch is in a normal state, the second output signal output by the control module 10 can be a high level, the third output signal can be a low level or alternately set high and low levels, the second display unit 420 is always on or flashing, and the first display unit 410 is off. When the reclosing switch is in the aging test mode, the second output signal output by the control module 10 is alternately set high and low levels, and the third output signal can be a high level. When the second output signal is a high level, the equivalent impedance of the first display unit 410 is less than that of the second display unit 420, and the first display unit 410 emits light prior to the second display unit 420. When the second output signal is a low level, the first display unit 410 emits light. Thus, the aging test mode of the reclosing switch can be indicated by the flashing of the first display unit 410, adding the states that can be indicated by the display without additionally increasing the control logic and improving the functionality of the display.

[0049] In some embodiments, the display characterization information of the first display unit 410 is different from that of the second display unit 420.

[0050] Specifically, the display characterization information can be the light-emitting color of the display module. The difference between the display characterization information of the first display unit 410 and that of the second display unit 420 can improve the display recognition of the first display unit 410 and the second display unit 420 when the reclosing switch is in different operating states, facilitating the staff to more easily judge the operating state of the reclosing switch according to the display characterization information.

[0051] Figure 7 Another structural schematic diagram of the display module provided by the embodiment of the present invention. As Figure 7 shown, the first display unit 410 includes a first-color light-emitting diode LED1, and the second display unit 420 includes a second-color light-emitting diode LED2; the first poles of the first-color light-emitting diode LED1 and the second-color light-emitting diode LED2 are connected to the second end of the third current-limiting resistor R5, the second pole of the first-color light-emitting diode LED1 is connected to the second control output terminal out4 of the control module 10, and the second pole of the second-color light-emitting diode LED2 is connected to the third control output terminal out5 of the control module 10; the PN junction conduction voltage of the first-color light-emitting diode LED1 is less than that of the second-color light-emitting diode LED2.

[0052] Specifically, the first-color light-emitting diode LED1 can be a red light-emitting diode, and its display characterization signal is red light. The second-color light-emitting diode LED2 can be a green light-emitting diode, and its display characterization signal is green light. By setting the conduction voltage of the PN junction of the first-color light-emitting diode LED1 to be less than that of the second-color light-emitting diode LED2, the lighting priority of the first-color light-emitting diode LED1 can be made higher than that of the second-color light-emitting diode LED2. When the reclosing is in the display control abnormal state, without adding additional control logic, the problem of unclear indication status caused by the simultaneous lighting of the first display unit 410 and the second display unit 420 is avoided, and the reliability of the display is improved. Or when the reclosing is in the aging test mode, without adding additional control logic, the states that the display can indicate are increased, and the functionality of the display is improved.

[0053] In some embodiments, the reclosing can further include a power supply module, which can convert the mains power into the voltage required by the control module to supply power to the control module. Exemplarily, the power supply module can convert 230V alternating current into 12V and 3.3V direct current voltages for supplying power to the control module.

[0054] In some embodiments, the reclosing can further include an input module for inputting instructions. The control module can control the driving actuator to act according to the input instructions. Exemplarily, the input module can include actual input buttons or virtual input buttons in the display module. The input module and the display module can be combined to form an interaction module for realizing the human-machine interaction between the reclosing and the operator.

[0055] In some embodiments, the reclosing can further include a detection module, which has a variety of detection circuits for detecting the state parameters of the driving actuator; the control module can judge the state of the driving actuator according to the state parameters of the driving actuator. Exemplarily, the state parameters can include the current of the reclosing, and the detection module can include a current detection circuit for detecting the current of the reclosing. The state parameters can include the voltage of the reclosing, and the detection module can include a voltage detection circuit for detecting the voltage of the reclosing. The state parameters can include the state parameters of the driving actuator, and the detection module can include a state detection circuit of the driving actuator for detecting the position state of the driving actuator, etc. For example, when the driving actuator includes a circuit breaker, the detection module can include a circuit breaker state detection circuit for detecting the opening and closing states of the circuit breaker, etc.

[0056] In some embodiments, the driving actuator includes a driving unit and a switching main body. The driving unit is connected to the control module, and the switching main body is connected to the driving unit. The driving unit may include a power supply circuit, a protection circuit, etc., for converting the control instruction output by the control module into a power signal to drive the switching main body to act. Exemplarily, the driving unit may include a motor circuit and a magnetic flux circuit. The motor circuit may include an AC motor and its driving circuit. The control module controls the operation of the motor circuit so that the motor circuit can drive the switching main body to perform operations such as opening and closing. The magnetic flux circuit may include a magnetic flux generating structure and its driving circuit. The control module controls the operation of the magnetic flux circuit to perform the protection tripping of the switching main body.

[0057] Note that the above is only the preferred embodiment of the present invention and the applied technical principle. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein. Various obvious changes, re-adjustments, and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A reclosing device, characterized in that: It includes a mode selection module, a driving actuator and a control module; The first input end of the mode selection module is used to input a first power supply signal, the second input end of the mode selection module is used to input a second power supply signal, the first signal output end of the mode selection module is connected to the first start signal input end of the control module, the second signal output end of the mode selection module is connected to the second start signal input end of the control module, the first control output end of the control module is connected to the drive actuator, and the mode selection module is used to output a first signal through the first signal output end and output a second signal through the second signal output end according to the first power supply signal and the second power supply signal; The control module is used to determine the working mode of the reclosing switch according to the first signal and the second signal, and control the action of the driving actuator based on the working mode of the reclosing switch; wherein the working mode of the reclosing switch includes a normal working mode and an aging test mode, and one of the first power supply signal and the second power supply signal is a high level signal, and the other is a low level signal.

2. The reclosing device according to claim 1, characterized in that: The mode selection module includes an input terminal, a first optical coupling unit and a second optical coupling unit; The first end of the input terminal is used to input the first power supply signal, the primary positive end of the first optocoupler unit and the primary negative end of the second optocoupler unit are connected to the first end of the input terminal, the second end of the input terminal is used to input the second power supply signal, the primary negative end of the first optocoupler unit and the primary positive end of the second optocoupler unit are connected to the second end of the input terminal, the secondary first end of the first optocoupler unit serves as the first signal output end of the mode selection module, the secondary first end of the second optocoupler unit serves as the second signal output end of the mode selection module, and the secondary second end of the first optocoupler unit and the secondary second end of the second optocoupler unit are grounded.

3. The reclosing switch according to claim 2, characterized in that: The first optocoupler unit includes a first optocoupler and a first pull-up resistor; the second optocoupler unit includes a second optocoupler and a second pull-up resistor; the positive end of the light emitter of the first optocoupler and the negative end of the light emitter of the second optocoupler are connected to the first end of the input terminal, the negative end of the light emitter of the first optocoupler and the positive end of the light emitter of the second optocoupler are connected to the second end of the input terminal, the first end of the light receiver of the first optocoupler is connected to the first end of the first pull-up resistor and serves as the first signal output end of the mode selection module, the second end of the first pull-up resistor is connected to the first power supply end, and the second end of the light receiver of the first optocoupler is grounded; the first end of the light receiver of the second optocoupler is connected to the first end of the second pull-up resistor and serves as the second signal output end of the mode selection module, the second end of the second pull-up resistor is connected to the first power supply end, and the second end of the light receiver of the second optocoupler is grounded.

4. The reclosing switch according to claim 2, characterized in that: The mode selection module also includes a first current limiting resistor and a second current limiting resistor, wherein the first end of the first current limiting resistor is connected to the first end of the input terminal, the second end of the first current limiting resistor is connected to the primary positive end of the first optocoupler unit and the primary negative end of the second optocoupler unit, the first end of the second current limiting resistor is connected to the second end of the input terminal, and the second end of the second current limiting resistor is connected to the primary negative end of the first optocoupler unit and the primary positive end of the second optocoupler unit.

5. The reclosing switch according to claim 4, characterized in that: The mode selection module further includes a state selection unit connected between the first end of the input terminal and the first current limiting resistor, and the state selection unit is used to select a working state of the mode selection module according to the voltage of the first power supply signal.

6. The reclosing switch according to claim 5, characterized in that: The state selection unit includes a voltage-stabilizing diode, a negative end of the voltage-stabilizing diode is connected to the first end of the input terminal, and a positive end of the voltage-stabilizing diode is connected to the first end of the first current-limiting resistor.

7. The reclosing switch according to any one of claims 1 to 6, characterized in that: It also includes a display module, which is connected to the control module. The control module is also used to control the display of the display module according to the operating status of the driving actuator.

8. The reclosing device according to claim 7, characterized in that: The display module includes a third current limiting resistor, a first display unit and a second display unit, wherein the first end of the third current limiting resistor is connected to the second power supply end, the second end of the third current limiting resistor is connected to the first end of the first display unit and the first end of the second display unit, the second end of the first display unit is connected to the second control output end of the control module, and the second end of the second display unit is connected to the third control output end of the control module; the equivalent impedance of the first display unit is smaller than the equivalent impedance of the second display unit; and the control module is used to control the display status of the first display unit and the second display unit according to the operating status of the reclosing switch.

9. The reclosing switch according to claim 8, characterized in that: The display characterization information of the first display unit is different from the display characterization information of the second display unit.

10. The reclosing switch according to claim 9, characterized in that: The first display unit includes a first color light emitting diode, and the second display unit includes a second color light emitting diode; The first electrode of the first color light emitting diode and the first electrode of the second color light emitting diode are connected to the second end of the third current limiting resistor, the second electrode of the first color light emitting diode is connected to the second control output end of the control module, and the second electrode of the second color light emitting diode is connected to the third control output end of the control module; the PN junction conduction voltage of the first color light emitting diode is less than the PN junction conduction voltage of the second color light emitting diode.

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