CN221057346U

CN221057346U - Switching-on/off control circuit

Info

Publication number: CN221057346U
Application number: CN202323082928.2U
Authority: CN
Inventors: 张松建; 崔坤柏; 陈启蒙; 钱勇; 高杰
Original assignee: Legrand Low Voltage Wuxi Co Ltd
Current assignee: Legrand Low Voltage Wuxi Co Ltd
Priority date: 2023-11-15
Filing date: 2023-11-15
Publication date: 2024-05-31
Anticipated expiration: 2033-11-15

Abstract

The utility model relates to an opening and closing control circuit. The utility model comprises a switch power supply module, a closing control module, a brake separating control module and a motor driving module, wherein the switch power supply module comprises a surge absorbing module, a rectifying module, a voltage transforming module and a voltage control module, the surge absorbing module is connected with commercial power, the rectifying module is respectively connected with the surge absorbing module, the voltage control module and the voltage transforming module, the voltage control module is connected with the voltage transforming module, and the voltage transforming module is respectively connected with the closing control module, the brake separating control module and the motor driving module. When the circuit breaker is in the tripping position, the breaker can be directly switched on by pressing the switching-on key, so that the time required by operation is greatly reduced, the operation procedure is simplified, the one-key switching-on function is supported, and the traditional double-key switching-on operation mode is compatible.

Description

Switching-on/off control circuit

Technical Field

The utility model relates to the technical field of piezoelectric devices, in particular to a switching-on/off control circuit.

Background

The electric operating mechanism of the circuit breaker is provided with a closing key and a separating key. If the breaker is opened, the electric operating mechanism can close the breaker by pressing the opening key; if the breaker is switched on, the switch-off key is pressed, and the electric operating mechanism can separate the breaker; if the breaker is tripped, the breaker is changed into a breaking state by pressing a breaking key, and then the breaker is changed into a closing state by pressing a closing key, so that the operation is time-consuming.

Disclosure of Invention

Therefore, the utility model provides the switching-on/off control circuit, when the circuit breaker is in the tripping position, the switching-on button is pressed to enable the circuit breaker to be directly switched on, so that the operation time can be saved, and the operation logic is simplified.

In order to solve the technical problem, the present utility model provides a switching-on/off control circuit, which is characterized by comprising: the switching power supply comprises a surge absorbing module, a rectifying module, a voltage transformation module and a voltage control module, wherein the surge absorbing module is connected with commercial power, the rectifying module is respectively connected with the surge absorbing module, the voltage control module is connected with the voltage transformation module, and the voltage transformation module is respectively connected with the switching control module, the switching control module and the switching control module, and the motor driving module.

In one embodiment of the present utility model, the surge absorbing module includes a thermistor RT, a varistor RV1, and a capacitor C1; the first end of the thermistor RT is connected with the first pole of the mains supply, the first end of the piezoresistor RV1 is connected with the second pole of the mains supply, the second end of the thermistor RT is connected with the second end of the piezoresistor RV1 and then connected to the first end of the capacitor C1, the second end of the capacitor C1 is connected with the second pole of the mains supply, and an inductor L1 is connected between the input end of the rectifying module and the capacitor C1.

In one embodiment of the present utility model, the transformation module includes a transformer T1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C7, a capacitor C8, a resistor R5, a diode D6, and a diode D8; the rectifying module is a rectifying bridge loop, the output end of the rectifying module comprises a voltage positive electrode and a voltage negative electrode, the two ends of the capacitor C2 are respectively connected with the voltage positive electrode and the voltage negative electrode, and the voltage positive electrode is grounded through the capacitor C5; the transformer T1 comprises a primary coil group and a secondary coil group, wherein the primary coil group comprises a first pin, a third pin, a fourth pin and a fifth pin, and the secondary coil group comprises a seventh pin and a ninth pin; the first pin of the primary coil set is connected with the positive voltage electrode, the fourth pin of the primary coil set is connected with the positive electrode of the diode D6, the negative electrode of the diode D6 is connected with the negative voltage electrode through the capacitor C8, and the fifth pin of the primary coil set is connected with the negative voltage electrode; the ninth pin of the secondary coil group is connected with the positive electrode of the diode D8, and the seventh pin of the secondary coil group is grounded; the first end of the capacitor C3 is connected with the cathode of the diode D8, and the second end of the capacitor C3 is grounded; the first end of the capacitor C4 is connected with the first end of the capacitor C3 and provides output voltage, and the second end of the capacitor C4 is grounded; the first end of the resistor R5 is connected with the anode of the diode D8, and the second end of the resistor R5 is connected with the first end of the capacitor C3 through the capacitor C7.

In one embodiment of the present utility model, the voltage control module includes a power chip U1, a resistor R2, a resistor R3, a resistor R6, a resistor R7, a resistor R8, a capacitor C6, and a diode D5; the first pin of the power chip U1 is sequentially connected with a resistor R3 and a resistor R2 in series and then connected with a voltage cathode; the fourth pin of the power chip U1 is connected with the anode of the diode D5, and the cathode of the diode D5 is connected with the first end of the resistor R8; the first end of the capacitor C6 is connected with the voltage anode, and the first end of the capacitor C6 is connected with the second end of the resistor R8; the first end of the resistor R6 connected in series with the resistor R7 is connected to the voltage anode, and the second end of the resistor R6 connected in series with the resistor R7 is connected to the second end of the resistor R8; the fifth pin, the sixth pin, the seventh pin and the eighth pin of the power chip U1 are respectively connected to the voltage negative electrode.

In one embodiment of the present utility model, the voltage control module further includes an optocoupler PC1, a resistor R4, a resistor R9, a resistor R10, a capacitor C4, a capacitor C12, and a zener diode ZD1; the collector electrode of the phototriode of the optocoupler PC1 is connected between the cathode of the diode D6 and the capacitor C8; the emitter of the phototriode of the optocoupler PC1 is connected to a second pin of the power chip U1, and the second pin of the power chip U1 is a feedback end; the first end of the capacitor C12 is connected with the second pin of the power chip U1, and the second end of the capacitor C12 is connected to the voltage cathode; the first end of the resistor R4 is connected with the second pin of the power chip U1, and the second end of the resistor R4 is connected to the voltage cathode through the capacitor C4; the positive electrode of the light emitting diode of the optocoupler PC1 is connected to the negative electrode of the diode D8 and the first end of the resistor R10 through the resistor R9 respectively, the second end of the resistor R10 is connected with the negative electrode of the light emitting diode of the optocoupler PC1 and the negative electrode of the zener diode ZD1 respectively, and the positive electrode of the zener diode ZD1 is grounded.

In one embodiment of the present utility model, the switch-on control module includes a switch-on detection switch S1, a switch-on button SW1, a resistor R12, a resistor R14, a resistor R15, a resistor R16, a resistor R17, a resistor R22, a resistor R25, a capacitor C9, a triode Q2, and an operational amplifier U3A; the first end of the closing detection switch S1 is connected between the first end of the resistor R14 and the first end of the resistor R15, the second end of the closing detection switch S1 is grounded, the second end of the resistor R14 is connected to the output voltage, and the second end of the resistor R15 is grounded; the first end of the capacitor C9 is respectively connected between the first end of the resistor R14 and the first end of the resistor R15 and the noninverting input end of the operational amplifier U3A, and the second end of the capacitor C9 is grounded; the first end of the switch-on button SW1 is connected to the output voltage, the second end of the switch-on button SW1 is connected to the base electrode of the triode Q2 through a resistor R12, the emitter electrode of the triode Q2 is grounded, the collector electrode of the triode Q2 is connected between the first end of a resistor R16 and the first end of a resistor R22 through a resistor R25, the second end of the resistor R16 is grounded, and the second end of the resistor R22 is connected to the output voltage; the inverting input end of the operational amplifier U3A is connected between the first end of the resistor R16 and the first end of the resistor R22, and the anode and the cathode of the operational amplifier U3A are respectively connected with output voltage and ground; and two ends of the resistor R17 are respectively connected with the noninverting input end of the operational amplifier U3A and the output end of the operational amplifier U3A.

In one embodiment of the present utility model, the opening control module includes an opening detection switch S2, an opening button SW2, a resistor R13, a resistor R18, a resistor R19, a resistor R20, a resistor R21, a resistor R23, a resistor R26, a capacitor C10, a triode Q3, and an operational amplifier U3B; the first end of the brake-separating detection switch S2 is connected between the first end of the resistor R18 and the first end of the resistor R19, the second end of the brake-separating detection switch S2 is grounded, the second end of the resistor R18 is connected to the output voltage, and the second end of the resistor R19 is grounded; the first end of the capacitor C9 is respectively connected between the first end of the resistor R18 and the first end of the resistor R19 and the noninverting input end of the operational amplifier U3B, and the second end of the capacitor C9 is grounded; the first end of the switch-off button SW2 is connected to output voltage, the second end of the switch-on button SW1 is connected to the base electrode of the triode Q3 through a resistor R13, the emitter electrode of the triode Q3 is grounded, the collector electrode of the triode Q3 is connected between the first end of a resistor R20 and the first end of a resistor R23 through a resistor R26, the second end of the resistor R20 is grounded, and the second end of the resistor R23 is connected to output voltage; the inverting input end of the operational amplifier U3B is connected between the first end of the resistor R20 and the first end of the resistor R23, and the anode and the cathode of the operational amplifier U3B are respectively connected with output voltage and ground; and two ends of the resistor R21 are respectively connected with the non-inverting input end of the operational amplifier U3B and the output end of the operational amplifier U3B.

In one embodiment of the present utility model, the motor driving module includes a first diode D7, a second diode D7, a diode D9, a resistor R24, a capacitor C11, a motor, and a MOS transistor Q1; the positive electrode of the first diode D7 and the positive electrode of the second diode D7 are respectively connected with the output end of the operational amplifier U3A and the output end of the operational amplifier U3B; the first end of the resistor R24 is respectively connected with the cathode of the first diode D7 and the cathode of the second diode D7, and the second end of the resistor R24 is grounded; the first end of the capacitor C11 is respectively connected with the first end of the resistor R24 and the grid electrode of the MOS tube Q1, and the second end of the capacitor C11 is grounded; the source electrode of the MOS tube Q1 is respectively connected with the grid electrode of the MOS tube Q1 and the ground, the drain electrode of the MOS tube Q1 is connected to the first end of the motor, the second end of the motor is connected to the output voltage, the positive electrode of the diode D9 is connected with the first end of the motor, and the negative electrode of the diode D9 is connected with the second end of the motor.

Compared with the prior art, the technical scheme of the utility model has the following advantages:

According to the opening and closing control circuit, when the circuit breaker is in the release position, the opening and closing key can be pressed to enable the circuit breaker to be directly closed, so that time required by operation is greatly shortened, an operation program is simplified, a one-key closing function is supported, and a traditional double-key closing operation mode is compatible.

Drawings

In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings.

Fig. 1 is a schematic circuit diagram of a switching power supply module according to the present utility model.

Fig. 2 is a schematic circuit diagram of a closing control module according to the present utility model.

FIG. 3 is a schematic diagram of a circuit structure of a split-gate control module according to the present utility model.

Fig. 4 is a schematic circuit diagram of a motor driving module according to the present utility model.

Fig. 5 is a schematic diagram of the connection circuit structure of the switching-on control module, the switching-off control module and the motor driving module.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.

Referring to fig. 1 and 5, the switching power supply module, the switching control module and the motor driving module of the utility model are shown, the switching power supply module comprises a surge absorbing module, a rectifying module, a voltage transformation module and a voltage control module, the surge absorbing module is connected with commercial power, the rectifying module is respectively connected with the surge absorbing module, the voltage control module and the voltage transformation module, the voltage control module is connected with the voltage transformation module, and the voltage transformation module is respectively connected with the switching control module, the switching control module and the motor driving module.

Specifically, the surge absorbing module comprises a thermistor RT, a piezoresistor RV1 and a capacitor C1; the first end of the thermistor RT is connected with the first pole of the mains supply, the first end of the piezoresistor RV1 is connected with the second pole of the mains supply, the second end of the thermistor RT is connected with the second end of the piezoresistor RV1 and then connected to the first end of the capacitor C1, the second end of the capacitor C1 is connected with the second pole of the mains supply, and an inductor L1 is connected between the input end of the rectifying module and the capacitor C1.

Specifically, the transformation module includes a transformer T1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C7, a capacitor C8, a resistor R5, a diode D6, and a diode D8; the rectifying module DB1 can be a rectifying bridge loop consisting of four diodes, the output end of the rectifying module DB1 comprises a voltage positive electrode (HV 1+) and a voltage negative electrode (HV 1-), two ends of a capacitor C2 are respectively connected with the voltage positive electrode and the voltage negative electrode, and the voltage positive electrode is grounded through a capacitor C5; the transformer T1 comprises a primary coil group and a secondary coil group, wherein the primary coil group comprises a first pin, a third pin, a fourth pin and a fifth pin, and the secondary coil group comprises a seventh pin and a ninth pin; the first pin of the primary coil set is connected with the positive voltage electrode, the fourth pin of the primary coil set is connected with the positive electrode of the diode D6, the negative electrode of the diode D6 is connected with the negative voltage electrode through the capacitor C8, and the fifth pin of the primary coil set is connected with the negative voltage electrode; the ninth pin of the secondary coil group is connected with the positive electrode of the diode D8, and the seventh pin of the secondary coil group is grounded; the first end of the capacitor C3 is connected with the cathode of the diode D8, and the second end of the capacitor C3 is grounded; the first end of the capacitor C4 is connected with the first end of the capacitor C3 and provides an output Voltage (VP), and the second end of the capacitor C4 is grounded; the first end of the resistor R5 is connected with the anode of the diode D8, and the second end of the resistor R5 is connected with the first end of the capacitor C3 through the capacitor C7.

Specifically, the voltage control module includes a power chip U1, a resistor R2, a resistor R3, a resistor R6, a resistor R7, a resistor R8, a capacitor C6, and a diode D5; the first pin (BP end) of the power chip U1 is sequentially connected with a resistor R3 and a resistor R2 in series and then connected with a voltage cathode; the fourth pin (D end) of the power chip U1 is connected with the positive electrode of a diode D5, and the negative electrode of the diode D5 is connected with the first end of a resistor R8; the first end of the capacitor C6 is connected with the voltage anode, and the first end of the capacitor C6 is connected with the second end of the resistor R8; the first end of the resistor R6 connected in series with the resistor R7 is connected to the voltage anode, and the second end of the resistor R6 connected in series with the resistor R7 is connected to the second end of the resistor R8; the fifth pin (S terminal), the sixth pin (S terminal), the seventh pin (S terminal), and the eighth pin (S terminal) of the power chip U1 are respectively connected to the voltage negative electrode.

The voltage control module further comprises an optocoupler PC1, a resistor R4, a resistor R9, a resistor R10, a capacitor C4, a capacitor C12 and a zener diode ZD1; the collector electrode of the phototriode of the optocoupler PC1 is connected between the cathode of the diode D6 and the capacitor C8; the emitter of the phototriode of the optocoupler PC1 is connected to a second pin (FB end) of the power chip U1, and the second pin of the power chip U1 is a feedback end; the first end of the capacitor C12 is connected with the second pin of the power chip U1, and the second end of the capacitor C12 is connected to the voltage cathode; the first end of the resistor R4 is connected with the second pin of the power chip U1, and the second end of the resistor R4 is connected to the voltage cathode through the capacitor C4; the positive electrode of the light emitting diode of the optocoupler PC1 is connected to the negative electrode of the diode D8 and the first end of the resistor R10 through the resistor R9 respectively, the second end of the resistor R10 is connected with the negative electrode of the light emitting diode of the optocoupler PC1 and the negative electrode of the zener diode ZD1 respectively, and the positive electrode of the zener diode ZD1 is grounded.

Referring to fig. 2, the closing control module includes a closing detection switch S1, a closing button SW1, a resistor R12, a resistor R14, a resistor R15, a resistor R16, a resistor R17, a resistor R22, a resistor R25, a capacitor C9, a triode Q2, and an operational amplifier U3A; the first end of the closing detection switch S1 is connected between the first end of the resistor R14 and the first end of the resistor R15, the second end of the closing detection switch S1 is grounded, the second end of the resistor R14 is connected to the output voltage, and the second end of the resistor R15 is grounded; the first end of the capacitor C9 is respectively connected between the first end of the resistor R14 and the first end of the resistor R15 and the noninverting input end of the operational amplifier U3A, and the second end of the capacitor C9 is grounded; the first end of the switch-on button SW1 is connected to the output voltage, the second end of the switch-on button SW1 is connected to the base electrode of the triode Q2 through a resistor R12, the emitter electrode of the triode Q2 is grounded, the collector electrode of the triode Q2 is connected between the first end of a resistor R16 and the first end of a resistor R22 through a resistor R25, the second end of the resistor R16 is grounded, and the second end of the resistor R22 is connected to the output voltage; the inverting input end of the operational amplifier U3A is connected between the first end of the resistor R16 and the first end of the resistor R22, and the anode and the cathode of the operational amplifier U3A are respectively connected with output voltage and ground; and two ends of the resistor R17 are respectively connected with the noninverting input end of the operational amplifier U3A and the output end of the operational amplifier U3A.

Referring to fig. 3, the opening control module includes an opening detection switch S2, an opening button SW2, a resistor R13, a resistor R18, a resistor R19, a resistor R20, a resistor R21, a resistor R23, a resistor R26, a capacitor C10, a triode Q3, and an operational amplifier U3B; the first end of the brake-separating detection switch S2 is connected between the first end of the resistor R18 and the first end of the resistor R19, the second end of the brake-separating detection switch S2 is grounded, the second end of the resistor R18 is connected to the output voltage, and the second end of the resistor R19 is grounded; the first end of the capacitor C9 is respectively connected between the first end of the resistor R18 and the first end of the resistor R19 and the noninverting input end of the operational amplifier U3B, and the second end of the capacitor C9 is grounded; the first end of the switch-off button SW2 is connected to output voltage, the second end of the switch-on button SW1 is connected to the base electrode of the triode Q3 through a resistor R13, the emitter electrode of the triode Q3 is grounded, the collector electrode of the triode Q3 is connected between the first end of a resistor R20 and the first end of a resistor R23 through a resistor R26, the second end of the resistor R20 is grounded, and the second end of the resistor R23 is connected to output voltage; the inverting input end of the operational amplifier U3B is connected between the first end of the resistor R20 and the first end of the resistor R23, and the anode and the cathode of the operational amplifier U3B are respectively connected with output voltage and ground; and two ends of the resistor R21 are respectively connected with the non-inverting input end of the operational amplifier U3B and the output end of the operational amplifier U3B.

Referring to fig. 4 and 5, the motor driving module includes a first diode D7, a second diode D7, a diode D9, a resistor R24, a capacitor C11, and a motor M, MOS Q1; the positive electrode of the first diode D7 and the positive electrode of the second diode D7 are respectively connected with the output end of the operational amplifier U3A and the output end of the operational amplifier U3B; the first end of the resistor R24 is respectively connected with the cathode of the first diode D7 and the cathode of the second diode D7, and the second end of the resistor R24 is grounded; the first end of the capacitor C11 is respectively connected with the first end of the resistor R24 and the grid electrode of the MOS tube Q1, and the second end of the capacitor C11 is grounded; the source electrode of the MOS tube Q1 is respectively connected with the grid electrode of the MOS tube Q1 and the ground, the drain electrode of the MOS tube Q1 is connected to the first end of the motor, the second end of the motor is connected to the output voltage, the positive electrode of the diode D9 is connected with the first end of the motor, and the negative electrode of the diode D9 is connected with the second end of the motor.

The working principle of the utility model is as follows:

The switching power supply module converts commercial power into DC 24V for the chip and the motor M1;

When the circuit breaker is not at the closing position, the closing detection switch S1 is turned off, the voltage of the non-inverting input end (3 pin) of the operational amplifier U3A is 8V, the voltage of the inverting input end (2 pin) of the operational amplifier U3A is 12V, at the moment, the output end of the operational amplifier U3A outputs low level, and the motor does not run;

When the switch-on button SW1 is pressed, the voltage of the inverting input end (2 pins) of the operational amplifier U3A is 1.2V, the output end of the operational amplifier U3A is output to be high level, meanwhile, the positive feedback resistor R17 pulls the voltage of the non-inverting input end (3 pins) of the operational amplifier U3A to be high to 16V, and at the moment, even if the switch-on button SW1 is released, the output end of the operational amplifier U3A still outputs high level and controls the motor to rotate;

when the motor rotates to a closing position, the closing detection switch S1 is closed, the voltage of the non-inverting input end (3 pin) of the operational amplifier U3A is 0V, if the closing key SW1 is not released at the moment, the voltage of the inverting input end (2 pin) of the operational amplifier U3A is 1.2V, the output end of the operational amplifier U3A is low level, and the motor stops rotating; if the closing button SW1 is released at this time, the voltage of the inverting input end (2 feet) of the operational amplifier U3A is 12V, the output end of the operational amplifier U3A is low level, and the motor stops rotating;

when the circuit breaker is not at the opening position, the opening detection switch S2 is turned off, the voltage of the non-inverting input end (3 pin) of the operational amplifier U3B is 8V, the voltage of the inverting input end (2 pin) of the operational amplifier U3B is 12V, at the moment, the output end of the operational amplifier U3B outputs low level, and the motor does not operate;

When the opening key SW2 is pressed, the voltage of the inverting input end (2 pins) of the operational amplifier U3B is 1.2V, the output end of the operational amplifier U3B is output to be high level, meanwhile, the positive feedback resistor R21 pulls up the voltage of the non-inverting input end (3 pins) of the operational amplifier U3B to 16V, and at the moment, even if the closing key SW2 is released, the output end of the operational amplifier U3B still outputs high level and controls the motor to rotate;

When the motor rotates to the opening position, the opening detection switch S2 is closed, the voltage of the non-inverting input end (5 pins) of the operational amplifier U3B is 0V, if the opening key SW2 is not released, the voltage of the inverting input end (6 pins) of the operational amplifier U3B is 1.2V, the output end of the operational amplifier U3B is low level, and the motor stops rotating; if the time switch button SW2 is released, the voltage of the inverting input end (6 pins) of the operational amplifier U3B is 12V, the output end of the operational amplifier U3B is low level, and the motor stops rotating;

When the switching-off control module or the switching-on control module outputs a high level, the driving motor rotates to finish switching-off or switching-on actions.

Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same, and although the present utility model has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model, and all such modifications and equivalents are intended to be encompassed in the scope of the claims of the present utility model.

Claims

1. An opening and closing control circuit is characterized by comprising: the switching power supply comprises a surge absorbing module, a rectifying module, a voltage transformation module and a voltage control module, wherein the surge absorbing module is connected with commercial power, the rectifying module is respectively connected with the surge absorbing module, the voltage control module is connected with the voltage transformation module, and the voltage transformation module is respectively connected with the switching control module, the switching control module and the switching control module, and the motor driving module.

2. The opening and closing control circuit according to claim 1, wherein the surge absorbing module comprises a thermistor RT, a varistor RV1 and a capacitor C1; the first end of the thermistor RT is connected with the first pole of the mains supply, the first end of the piezoresistor RV1 is connected with the second pole of the mains supply, the second end of the thermistor RT is connected with the second end of the piezoresistor RV1 and then connected to the first end of the capacitor C1, the second end of the capacitor C1 is connected with the second pole of the mains supply, and an inductor L1 is connected between the input end of the rectifying module and the capacitor C1.

3. The opening and closing control circuit according to claim 2, wherein the transformation module comprises a transformer T1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C7, a capacitor C8, a resistor R5, a diode D6, and a diode D8; the rectifying module is a rectifying bridge loop, the output end of the rectifying module comprises a voltage positive electrode and a voltage negative electrode, the two ends of the capacitor C2 are respectively connected with the voltage positive electrode and the voltage negative electrode, and the voltage positive electrode is grounded through the capacitor C5; the transformer T1 comprises a primary coil group and a secondary coil group, wherein the primary coil group comprises a first pin, a third pin, a fourth pin and a fifth pin, and the secondary coil group comprises a seventh pin and a ninth pin; the first pin of the primary coil set is connected with the positive voltage electrode, the fourth pin of the primary coil set is connected with the positive electrode of the diode D6, the negative electrode of the diode D6 is connected with the negative voltage electrode through the capacitor C8, and the fifth pin of the primary coil set is connected with the negative voltage electrode; the ninth pin of the secondary coil group is connected with the positive electrode of the diode D8, and the seventh pin of the secondary coil group is grounded; the first end of the capacitor C3 is connected with the cathode of the diode D8, and the second end of the capacitor C3 is grounded; the first end of the capacitor C4 is connected with the first end of the capacitor C3 and provides output voltage, and the second end of the capacitor C4 is grounded; the first end of the resistor R5 is connected with the anode of the diode D8, and the second end of the resistor R5 is connected with the first end of the capacitor C3 through the capacitor C7.

4. The opening and closing control circuit according to claim 3, wherein the voltage control module comprises a power supply chip U1, a resistor R2, a resistor R3, a resistor R6, a resistor R7, a resistor R8, a capacitor C6, and a diode D5; the first pin of the power chip U1 is sequentially connected with a resistor R3 and a resistor R2 in series and then connected with a voltage cathode; the fourth pin of the power chip U1 is connected with the anode of the diode D5, and the cathode of the diode D5 is connected with the first end of the resistor R8; the first end of the capacitor C6 is connected with the voltage anode, and the first end of the capacitor C6 is connected with the second end of the resistor R8; the first end of the resistor R6 connected in series with the resistor R7 is connected to the voltage anode, and the second end of the resistor R6 connected in series with the resistor R7 is connected to the second end of the resistor R8; the fifth pin, the sixth pin, the seventh pin and the eighth pin of the power chip U1 are respectively connected to the voltage negative electrode.

5. The opening and closing control circuit according to claim 4, wherein the voltage control module further comprises an optocoupler PC1, a resistor R4, a resistor R9, a resistor R10, a capacitor C4, a capacitor C12, and a zener diode ZD1; the collector electrode of the phototriode of the optocoupler PC1 is connected between the cathode of the diode D6 and the capacitor C8; the emitter of the phototriode of the optocoupler PC1 is connected to a second pin of the power chip U1, and the second pin of the power chip U1 is a feedback end; the first end of the capacitor C12 is connected with the second pin of the power chip U1, and the second end of the capacitor C12 is connected to the voltage cathode; the first end of the resistor R4 is connected with the second pin of the power chip U1, and the second end of the resistor R4 is connected to the voltage cathode through the capacitor C4; the positive electrode of the light emitting diode of the optocoupler PC1 is connected to the negative electrode of the diode D8 and the first end of the resistor R10 through the resistor R9 respectively, the second end of the resistor R10 is connected with the negative electrode of the light emitting diode of the optocoupler PC1 and the negative electrode of the zener diode ZD1 respectively, and the positive electrode of the zener diode ZD1 is grounded.

6. The opening and closing control circuit according to claim 5, wherein the closing control module comprises a closing detection switch S1, a closing button SW1, a resistor R12, a resistor R14, a resistor R15, a resistor R16, a resistor R17, a resistor R22, a resistor R25, a capacitor C9, a triode Q2, and an operational amplifier U3A; the first end of the closing detection switch S1 is connected between the first end of the resistor R14 and the first end of the resistor R15, the second end of the closing detection switch S1 is grounded, the second end of the resistor R14 is connected to the output voltage, and the second end of the resistor R15 is grounded; the first end of the capacitor C9 is respectively connected between the first end of the resistor R14 and the first end of the resistor R15 and the noninverting input end of the operational amplifier U3A, and the second end of the capacitor C9 is grounded; the first end of the switch-on button SW1 is connected to the output voltage, the second end of the switch-on button SW1 is connected to the base electrode of the triode Q2 through a resistor R12, the emitter electrode of the triode Q2 is grounded, the collector electrode of the triode Q2 is connected between the first end of a resistor R16 and the first end of a resistor R22 through a resistor R25, the second end of the resistor R16 is grounded, and the second end of the resistor R22 is connected to the output voltage; the inverting input end of the operational amplifier U3A is connected between the first end of the resistor R16 and the first end of the resistor R22, and the anode and the cathode of the operational amplifier U3A are respectively connected with output voltage and ground; and two ends of the resistor R17 are respectively connected with the noninverting input end of the operational amplifier U3A and the output end of the operational amplifier U3A.

7. The opening and closing control circuit according to claim 6, wherein the opening and closing control module comprises an opening and closing detection switch S2, an opening and closing key SW2, a resistor R13, a resistor R18, a resistor R19, a resistor R20, a resistor R21, a resistor R23, a resistor R26, a capacitor C10, a triode Q3, and an operational amplifier U3B; the first end of the brake-separating detection switch S2 is connected between the first end of the resistor R18 and the first end of the resistor R19, the second end of the brake-separating detection switch S2 is grounded, the second end of the resistor R18 is connected to the output voltage, and the second end of the resistor R19 is grounded; the first end of the capacitor C9 is respectively connected between the first end of the resistor R18 and the first end of the resistor R19 and the noninverting input end of the operational amplifier U3B, and the second end of the capacitor C9 is grounded; the first end of the switch-off button SW2 is connected to output voltage, the second end of the switch-on button SW1 is connected to the base electrode of the triode Q3 through a resistor R13, the emitter electrode of the triode Q3 is grounded, the collector electrode of the triode Q3 is connected between the first end of a resistor R20 and the first end of a resistor R23 through a resistor R26, the second end of the resistor R20 is grounded, and the second end of the resistor R23 is connected to output voltage; the inverting input end of the operational amplifier U3B is connected between the first end of the resistor R20 and the first end of the resistor R23, and the anode and the cathode of the operational amplifier U3B are respectively connected with output voltage and ground; and two ends of the resistor R21 are respectively connected with the non-inverting input end of the operational amplifier U3B and the output end of the operational amplifier U3B.

8. The opening and closing control circuit according to claim 7, wherein the motor driving module comprises a first diode D7, a second diode D7, a diode D9, a resistor R24, a capacitor C11, a motor, and a MOS transistor Q1; the positive electrode of the first diode D7 and the positive electrode of the second diode D7 are respectively connected with the output end of the operational amplifier U3A and the output end of the operational amplifier U3B; the first end of the resistor R24 is respectively connected with the cathode of the first diode D7 and the cathode of the second diode D7, and the second end of the resistor R24 is grounded; the first end of the capacitor C11 is respectively connected with the first end of the resistor R24 and the grid electrode of the MOS tube Q1, and the second end of the capacitor C11 is grounded; the source electrode of the MOS tube Q1 is respectively connected with the grid electrode of the MOS tube Q1 and the ground, the drain electrode of the MOS tube Q1 is connected to the first end of the motor, the second end of the motor is connected to the output voltage, the positive electrode of the diode D9 is connected with the first end of the motor, and the negative electrode of the diode D9 is connected with the second end of the motor.