A switch control circuit for a multi-control mode of an energy storage system

Abstract

The utility model discloses a kind of switch machine control circuit of energy storage system multiple control mode, including main circuit, soft switch machine circuit, charging gun trigger starting circuit, high voltage secondary power supply control circuit, switch machine button and power connector circuit, button switch detection circuit and charging gun trigger detection circuit;Main circuit is connected with soft switch machine circuit, charging gun trigger starting circuit, switch machine button and power connector circuit, button switch detection circuit respectively.The utility model can reduce the quantity of power device in energy storage system switch machine loop, thereby make energy storage system cost reduce;And the circuit of the utility model can be controlled by small signal to high voltage large current signal, avoid operator direct contact with high voltage live device directly, avoid personnel to be injured.

Description

Technical Field

[0001] This utility model relates to energy storage system control, and specifically to a power-on / off control circuit for an energy storage system with multiple control modes. Background Technology

[0002] Existing industrial and commercial energy storage systems utilize electrical components for switching on and off. While this type of circuit offers a significant advantage in reliability from an electrical system perspective, the increasing scale of energy storage systems, particularly their voltage levels (from tens of volts to 1500V or even 2000V), means that using traditional electrical components for switching control leads to increased costs and safety issues with rising voltage. Specifically, this presents the following disadvantages:

[0003] 1) The power switching circuit composed of power components is a hard start and hard stop circuit. Under the action of high current impact, the device is easily subjected to arc impact, which can lead to device failure.

[0004] 2) The energy storage system is a high-voltage, high-current system with traditional hard-start control circuits. When operators perform start-up or shutdown operations, they directly contact high-voltage live components. If there is a leakage fault or short circuit in the system, operators may be injured or even killed if they are not adequately protected.

[0005] 3) Traditional energy storage systems have a single method for powering on and powering off;

[0006] 4) The high cost of electrical components increases the cost of energy storage systems. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of the prior art and provide a multi-control mode switching control circuit for energy storage systems that can reduce the number of electrical devices in the switching circuit of an energy storage system, thereby reducing the cost of the energy storage system.

[0008] The purpose of this utility model is achieved through the following technical solution: a multi-control mode power-on / off control circuit for an energy storage system, comprising a main circuit, a soft-start / off circuit, a charging gun trigger start circuit, a high-voltage secondary power supply control circuit, a power-on / off button and power connector circuit, a button switch detection circuit, and a charging gun trigger detection circuit; the main circuit is connected to the soft-start / off circuit, the charging gun trigger start circuit, the power-on / off button and power connector circuit, and the button switch detection circuit respectively; the charging gun trigger start circuit is connected to the charging gun trigger detection circuit; the button switch detection circuit, the soft-start / off circuit, the high-voltage secondary power supply control circuit, and the charging gun trigger detection circuit are also connected to an external microcontroller.

[0009] The main circuit consists of two parallel branches. One branch is a resistor divider circuit composed of multiple series resistors. One end of the resistor divider circuit is connected to VIN+, and the other end outputs a constant power POWER_OUT. The other branch is a power supply circuit, including fuse F14, diode D5, high-current diode D23, transistor Q3, and MOSFET Q1.

[0010] The two ends of fuse F14 are connected to VIN+ and pins 1 and 3 of high-current diode D23, respectively. Pin 2 of high-current diode D23 is connected to pin 3 of MOSFET Q1. Pin 2 of MOSFET Q1 is the DC+ output terminal. Pin 1 of MOSFET Q1 is connected to the collector of transistor Q1 after series resistor R23. The emitter of transistor Q3 is connected to VIN-. The base of transistor Q1 is connected to the cathode of diode D5 after series resistor R50. The anode of diode D5 is connected to the control signal input KEY_IN.

[0011] The positive terminal of capacitor C34 is connected between resistor R50 and diode D5, and the negative terminal is connected to VIN-. The connection between resistor R50, diode D50, and the positive terminal of capacitor C34 is the connection interface for the control signal POWER_IN-1.

[0012] One end of resistor R49 and capacitor C38 is connected between the base of transistor Q1 and resistor R50, and the other end is connected to VIN-; resistors R283 and R284 are connected in series, one end of which is connected between high-current diode D23 and MOSFET Q1, and the other end is connected between MOSFET Q1 and resistor R23.

[0013] The soft-switching circuit includes multiple resistors, capacitor C56, transistor Q19, and opto-solid-state relay U13; one end of resistor R61 is connected to the microcontroller, and the other end is connected to the base of transistor Q19. The emitter of transistor Q19 is grounded, and the collector of transistor Q19 is connected to pin 2 of opto-solid-state relay U13; pin 1 of opto-solid-state relay U13 is connected to power supply VCC5V via resistor R93 in series; pin 4 of opto-solid-state relay U13 is connected to constant power POWER_OUT via resistor R94 in series; and pin 3 of opto-solid-state relay U13 is connected to the connection interface of the main circuit's control signal POWER_IN-1.

[0014] One end of capacitor C56 and resistor R62 is connected between resistor R61 and transistor Q19, and the other end is grounded.

[0015] The charging gun triggering circuit includes diodes D21 and D22, resistors R314 and R315, and an optical solid-state relay U50. When an external charging gun is connected, the detection signals VIN_A+ and VIN_A1+ are connected to the positive terminals of diodes D21 and D22, respectively. The negative terminals of both D21 and D22 are connected to resistor R314. Simultaneously, the negative terminals of D21 and D22 serve as the output terminals of the charging gun triggering signal detection signal CHARG_GUN. The other end of resistor R314 is connected to pin 1 of the optical solid-state relay U50. Pin 2 of the optical solid-state relay U50 is grounded. Pin 4 of the optical solid-state relay U50 is connected to the constant power POWER_OUT via a series connection of resistor R315. Pin 3 of the optical solid-state relay U50 is connected to the connection interface of the main circuit's control signal POWER_IN-1.

[0016] The high-voltage secondary power supply control circuit consists of resistors R28 and R29, capacitors C26 and C167, diode D20, transistor Q2, relay K1, and fuse F1. One end of resistor R29 is connected to the microcontroller, and the other end is connected to the base of transistor Q2. The emitter of transistor Q2 is grounded. The collector of transistor Q2 is connected to the anode of diode D20 and pin 2 of relay K1. The cathode of diode D20 and pin 1 of relay K1 are both connected to the power supply VCC5V. Pin 3 of relay K1 outputs the control signal POWER_K2. Pin 4 of relay K1 is connected to one end of fuse F1, and the other end of fuse F1 outputs the control signal POWER_K1.

[0017] One end of resistor R28 and capacitor C26 is connected between resistor R29 and transistor Q2, and the other end is grounded; one end of capacitor C167 is connected between power supply VCC5V and diode D20, and the other end is grounded.

[0018] The push-button switch detection circuit consists of resistors R96, R99, R104, R105, and R100, capacitor C73, and optocoupler U16. One end of resistor R99 is the input terminal of the power button detection signal KEY_IN, and the other end is connected to one end of resistors R96, R104, and capacitor C73 respectively. The other ends of resistors R104 and capacitor C73 are connected to the VIN- port. The other end of resistor R96 is connected to pin 1 of optocoupler U16, pin 2 of optocoupler U16 is connected to the input VIN- port, and pin 3 of optocoupler U16 is grounded. Pin 4 of optocoupler U16 is connected to one end of resistors R100 and R105 respectively. The other end of resistor R100 is connected to the power supply VCC3V3, and the other end of resistor R105 outputs the button status detection signal DOH13 to an external microcontroller.

[0019] The charging gun trigger detection circuit consists of resistors R313, R324, R325, R353, and R355, capacitor C183, and optocoupler U53. One end of resistor R313 is connected to the charging gun trigger signal detection signal CHARG_GUN, and the other end is connected to one end of resistors R324, R325, and capacitor C183 respectively. The other ends of resistors R324 and capacitor C183 are grounded. The other end of resistor R325 is connected to pin 1 of optocoupler U53. Pins 2 and 3 of optocoupler U53 are both grounded. Pin 4 of optocoupler U53 is connected to one end of resistors R353 and R355 respectively. The other end of resistor R353 is connected to power supply VCC3V3. The other end of resistor R355 outputs the charging gun trigger detection signal DOH14 to an external microcontroller.

[0020] The power button and power connector circuit consists of a varistor VAR1, a high-current diode D4, and a 6-pin connector J1. Pins 1 and 3 of the high-current diode D4 are connected to DC+, and pin 2 is connected to pin 5 of connector J1. One end of the varistor VAR1 is connected to pin 6 of connector J1, and both varistor VAR1 and pin 6 of connector J1 are connected to VIN+. The other end of the varistor VAR1 is connected to pins 2 and 3 of connector J1, and both varistor VAR1 and pins 2 and 3 of connector J1 are connected to the negative power supply VIN- and DC-, respectively. Pin 4 of connector J1 is connected to the constant power POWER_OUT, and pin 1 is the external power button detection signal KEY_IN input pin. Pins 4 and 1 of J1 are shorted by a non-locking button.

[0021] The beneficial effects of this utility model are: by introducing the control circuit of this utility model into the control system, the following problems can be solved:

[0022] 1) Reduce the number of electrical devices in the switching circuit of the energy storage system, thereby reducing the cost of the energy storage system;

[0023] 2) The small signal output by the microcontroller controls the high voltage and high current signal, avoiding direct contact between the operator and the high voltage live device, thus preventing injury to the operator;

[0024] 3) This power-on / off control circuit uses a small-sized high-voltage, high-current device to control the device, and switches the device under zero load conditions to avoid damage from arcing.

[0025] 4) This power on / off control circuit is compatible with traditional power on / off control methods as well as charging gun trigger start-up.

[0026] 5) Only one high-voltage DC relay needs to be added externally to achieve unified start-up and shutdown control of the high-voltage energy storage system and the low-voltage energy storage system. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the power-on / off control circuit of this utility model;

[0028] Figure 2 The circuit diagram of the main circuit;

[0029] Figure 3 This is a circuit diagram for a soft-switching circuit.

[0030] Figure 4 Circuit diagram for triggering the start-up circuit of the charging gun;

[0031] Figure 5 This is a circuit diagram of a high-voltage secondary power supply control circuit.

[0032] Figure 6 The circuit diagram for the push-button switch detection circuit;

[0033] Figure 7 Circuit diagram of the charging gun trigger detection circuit;

[0034] Figure 8 This is a circuit diagram of the power button and power connector circuit. Detailed Implementation

[0035] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0036] like Figure 1 As shown, this utility model discloses a multi-control mode power-on / off control circuit for an energy storage system, comprising a main circuit, a soft-start / off circuit, a charging gun trigger start circuit, a high-voltage secondary power supply control circuit, a power-on / off button and power connector circuit, a button switch detection circuit, and a charging gun trigger detection circuit. The main circuit is connected to the soft-start / off circuit, the charging gun trigger start circuit, the power-on / off button and power connector circuit, and the button switch detection circuit. The charging gun trigger start circuit is connected to the charging gun trigger detection circuit. The button switch detection circuit, the soft-start / off circuit, the high-voltage secondary power supply control circuit, and the charging gun trigger detection circuit are also connected to an external microcontroller.

[0037] like Figure 2 As shown, the main circuit is the core of the entire power-on / off control circuit. The main circuit consists of two parallel branches, one of which is a resistor voltage divider circuit composed of multiple series resistors, mainly used for external power-on / off button triggering power-on and power-off control. The series resistors include resistors R253, R252, R279, and R282 connected in series. One end of resistor R253 is connected to VIN+, and a constant power POWER_OUT is output through resistor R282. The constant power POWER_OUT is the input signal of the external power-on / off button, optical solid-state relays U13 and U50.

[0038] The other branch is the power supply circuit, which mainly outputs secondary power to the energy storage system, including fuse F14, diode D5, high-current diode D23, transistor Q3, and MOSFET Q1;

[0039] The two ends of fuse F14 are connected to VIN+ and pins 1 and 3 of high-current diode D23, respectively. Pin 2 of high-current diode D23 is connected to pin 3 of MOSFET Q1. Pin 2 of MOSFET Q1 is the DC+ output terminal, and DC- and VIN- share a pin. Pin 1 of MOSFET Q1 is connected to the collector of transistor Q1 after series resistor R23. The emitter of transistor Q3 is connected to VIN-. The base of transistor Q1 is connected to the cathode of diode D5 after series resistor R50. The anode of diode D5 is connected to the control signal input KEY_IN.

[0040] The positive terminal of capacitor C34 is connected between resistor R50 and diode D5, and the negative terminal is connected to VIN-. The connection between resistor R50, diode D50, and the positive terminal of capacitor C34 is the connection interface for the control signal POWER_IN-1.

[0041] One end of resistor R49 and capacitor C38 is connected between the base of transistor Q1 and resistor R50, and the other end is connected to VIN-; resistors R283 and R284 are connected in series, one end of which is connected between high-current diode D23 and MOSFET Q1, and the other end is connected between MOSFET Q1 and resistor R23.

[0042] The resistors R283, R284, R23, R49, and R50, the capacitors C34 and C38, the diode D5, and the transistor Q3 constitute the drive control circuit for the MOSFET Q1; the resistors R49 and R50, the capacitors C34 and C38, and the diode D5 constitute the drive control circuit for the transistor Q3.

[0043] like Figure 3 As shown, the soft-switching circuit includes multiple resistors (R61, R62, R93, R94), capacitor C56, transistor Q19, and optical solid-state relay U13. One end of resistor R61 is connected to the control signal KEY_PG1 output by the microcontroller, and the other end is connected to the base of transistor Q19. The emitter of transistor Q19 is grounded, and the collector of transistor Q19 is connected to pin 2 of optical solid-state relay U13. Pin 1 of optical solid-state relay U13 is connected to power supply VCC5V via resistor R93 in series. Pin 4 of optical solid-state relay U13 is connected to constant power POWER_OUT via resistor R94 in series. Pin 3 of optical solid-state relay U13 is connected to the connection interface of control signal POWER_IN-1 of the main circuit. Optical solid-state relay U13 uses KAQY214ATLD.

[0044] One end of capacitor C56 and resistor R62 is connected between resistor R61 and transistor Q19, and the other end is grounded.

[0045] The soft-start circuit forms an interlock circuit with the external power-on button and charging gun trigger circuit. When triggered by the external power-on button or charging gun, the microcontroller outputs a high-level signal to control the operation of the circuit after detecting the trigger signal from the button or charging gun. The main circuit's operating state is locked through the control signal POWER_IN-1.

[0046] like Figure 4 As shown, the charging gun triggering circuit includes diodes D21 and D22, resistors R314 and R315, and an optical solid-state relay U50. The optical solid-state relay U50 uses a KAQY214ATLD. When an external charging gun is connected, the detection signals VIN_A+ and VIN_A1+ are connected to the positive terminals of diodes D21 and D22, respectively. The negative terminals of D21 and D22 are both connected to resistor R314. At the same time, the negative terminals of D21 and D22 serve as the output terminals of the charging gun triggering signal detection signal CHARG_GUN. The other end of resistor R314 is connected to pin 1 of the optical solid-state relay U50. Pin 2 of the optical solid-state relay U50 is grounded. Pin 4 of the optical solid-state relay U50 is connected to the constant power POWER_OUT via resistor R315 in series. Pin 3 of the optical solid-state relay U50 is connected to the connection interface of the main circuit's control signal POWER_IN-1 to drive and control the main circuit.

[0047] The charging gun controls the main circuit output via U50. The CHANG_GUN signal serves as a detection signal when the charging gun is connected. The charging gun trigger detection circuit outputs the DOH14 signal to the microcontroller, informing it that the charging gun is connected. At this time, the charging gun can trigger the start-up circuit to directly lock the main circuit's external DC+ power output; alternatively, the microcontroller can output a control signal to lock the main circuit via a soft switch and circuit.

[0048] The charging gun trigger start circuit, the charging gun trigger detection circuit, and the soft-start circuit form an interlock. When a charging gun is connected, the charging gun trigger detection circuit outputs a low level to the microcontroller. After the microcontroller detects the signal, it outputs a high level to lock the soft-start circuit, thereby locking the main circuit from supplying power to the outside.

[0049] like Figure 5As shown, the high-voltage secondary power supply control circuit consists of resistors R28 and R29, capacitors C26 and C167, diode D20, transistor Q2, relay K1, and fuse F1. Relay K1 is an HF49FD / 005-1H11T. One end of resistor R29 is connected to the microcontroller, and the other end is connected to the base of transistor Q2. The emitter of transistor Q2 is grounded. The collector of transistor Q2 is connected to the anode of diode D20 and pin 2 of relay K1. The cathode of diode D20 and pin 1 of relay K1 are both connected to the power supply VCC5V. Pin 3 of relay K1 outputs the control signal POWER_K2. Pin 4 of relay K1 is connected to one end of fuse F1, and the other end of fuse F1 outputs the control signal POWER_K1. The two signals POWER_K2 and POWER_K1 are the control signal outputs of relay K1, which are output to an external connector to control the external high-voltage, high-current signal.

[0050] One end of resistor R28 and capacitor C26 is connected between resistor R29 and transistor Q2, and the other end is grounded; one end of capacitor C167 is connected between power supply VCC5V and diode D20, and the other end is grounded.

[0051] Resistors R28 and R29, capacitor C26, and transistor Q2 together form the driving circuit for relay K1, controlling its operation. Diode D20 serves as the freewheeling diode for relay K1, protecting its coil from burnout. When the energy storage system is above 1000V, only one high-voltage relay needs to be connected in parallel externally to control the switching on / off of the high-voltage system. For high-voltage systems, an external high-voltage relay is added to this circuit, interlocking with the power-on button and button detection circuit to achieve the switching on / off of the energy storage system.

[0052] like Figure 6 As shown, the button switch detection circuit consists of resistors R96, R99, R104, R105, and R100, capacitor C73, and optocoupler U16. Optocoupler U16 is an OR-1008-TP type. One end of resistor R99 is the input terminal of the power button detection signal KEY_IN, and the other end is connected to one end of resistors R96, R104, and capacitor C73 respectively. The other ends of resistors R104 and capacitor C73 are connected to the VIN- port. The other end of resistor R96 is connected to pin 1 of optocoupler U16, pin 2 of optocoupler U16 is connected to the input VIN- port, and pin 3 of optocoupler U16 is grounded. Pin 4 of optocoupler U16 is connected to one end of resistors R100 and R105 respectively. The other end of resistor R100 is connected to the power supply VCC3V3, and the other end of resistor R105 outputs the button status detection signal DOH13 to an external microcontroller. DOH13 is the microcontroller's input detection signal, completing the detection of whether the power button is pressed or released.

[0053] like Figure 7 As shown, the charging gun trigger detection circuit consists of resistors R313, R324, R325, R353, and R355, capacitor C183, and optocoupler U53. Optocoupler U53 is an OR-1008-TP type. One end of resistor R313 is connected to the charging gun trigger signal detection signal CHARG_GUN, and the other end is connected to one end of resistors R324 and R325, and one end of capacitor C183. The other ends of resistors R324 and capacitor C183 are grounded. The other end of resistor R325 is connected to pin 1 of optocoupler U53. Pins 2 and 3 of optocoupler U53 are grounded. Pin 4 of optocoupler U53 is connected to one end of resistors R353 and R355. The other end of resistor R353 is connected to power supply VCC3V3. The other end of resistor R355 outputs the charging gun trigger detection signal DOH14 to an external microcontroller. DOH14 is the microcontroller's input detection signal, completing the detection of charging gun insertion or removal.

[0054] like Figure 8 As shown, the power button and power connector circuit consists of a varistor VAR1, a high-current diode D4, and a 6-pin connector J1, which uses a 50362462 diode. Pins 1 and 3 of the high-current diode D4 are connected to DC+, and pin 2 is connected to pin 5 of connector J1 to provide external power. One end of the varistor VAR1 is connected to pin 6 of connector J1, and both varistor VAR1 and pin 6 of connector J1 are connected to the power input VIN+. The other end of the varistor VAR1 is connected to pins 2 and 3 of connector J1, and both varistor VAR1 and pins 2 and 3 of connector J1 are connected to the negative power supply VIN- and DC-, respectively, to form a common negative network. Pin 4 of connector J1 is connected to the constant power POWER_OUT, and pin 1 is the external power button detection signal KEY_IN input pin. Pins 4 and 1 of J1 are shorted by a non-locking button. The main circuit's input VIN and output DC are connected to external circuits through the power switch button and power connector circuit. Pins 6 and 3 of connector J1 are VIN+ and VIN- connection pins, respectively, and pins 5 and 2 are DC+ and DC- pins, respectively.

[0055] Those skilled in the art will recognize that the embodiments described herein are intended to help the reader understand the principles of this invention, and should be understood that the scope of protection of this invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on these technical teachings disclosed in this invention without departing from the essence of this invention, and these modifications and combinations are still within the scope of protection of this invention.

Claims

1. A multi-control mode on / off control circuit for an energy storage system, characterized in that, It includes a main circuit, a soft-start circuit, a charging gun trigger start circuit, a high-voltage secondary power supply control circuit, a power on / off button and power connector circuit, a push-button switch detection circuit, and a charging gun trigger detection circuit. The main circuit is connected to the soft-start circuit, the charging gun trigger start circuit, the power on / off button and power connector circuit, and the push-button switch detection circuit. The charging gun trigger start circuit is connected to the charging gun trigger detection circuit. The push-button switch detection circuit, the soft-start circuit, the high-voltage secondary power supply control circuit, and the charging gun trigger detection circuit are also connected to an external microcontroller.

2. The on / off control circuit for a multi-control mode energy storage system according to claim 1, characterized in that, The main circuit consists of two parallel branches. One branch is a resistor divider circuit composed of multiple series resistors. One end of the resistor divider circuit is connected to VIN+, and the other end outputs a constant power POWER_OUT. The other branch is a power supply circuit, including fuse F14, diode D5, high-current diode D23, transistor Q3, and MOSFET Q1. The two ends of fuse F14 are connected to VIN+ and pins 1 and 3 of high-current diode D23, respectively. Pin 2 of high-current diode D23 is connected to pin 3 of MOSFET Q1. Pin 2 of MOSFET Q1 is the DC+ output terminal. Pin 1 of MOSFET Q1 is connected to the collector of transistor Q1 after series resistor R23. The emitter of transistor Q3 is connected to VIN-. The base of transistor Q1 is connected to the cathode of diode D5 after series resistor R50. The anode of diode D5 is connected to the control signal input KEY_IN. The positive terminal of capacitor C34 is connected between resistor R50 and diode D5, and the negative terminal is connected to VIN-. The connection between resistor R50, diode D50, and the positive terminal of capacitor C34 is the connection interface for the control signal POWER_IN-1. One end of resistor R49 and capacitor C38 is connected between the base of transistor Q1 and resistor R50, and the other end is connected to VIN-; resistors R283 and R284 are connected in series, one end of which is connected between high-current diode D23 and MOSFET Q1, and the other end is connected between MOSFET Q1 and resistor R23.

3. The on / off control circuit for a multi-control mode energy storage system according to claim 2, characterized in that, The soft-switching circuit includes multiple resistors, capacitor C56, transistor Q19, and opto-solid-state relay U13; one end of resistor R61 is connected to the microcontroller, and the other end is connected to the base of transistor Q19. The emitter of transistor Q19 is grounded, and the collector of transistor Q19 is connected to pin 2 of opto-solid-state relay U13; pin 1 of opto-solid-state relay U13 is connected to power supply VCC5V via resistor R93 in series; pin 4 of opto-solid-state relay U13 is connected to constant power POWER_OUT via resistor R94 in series; and pin 3 of opto-solid-state relay U13 is connected to the connection interface of the main circuit's control signal POWER_IN-1. One end of capacitor C56 and resistor R62 is connected between resistor R61 and transistor Q19, and the other end is grounded.

4. The on / off control circuit for a multi-control mode energy storage system according to claim 2, characterized in that, The charging gun triggering circuit includes diodes D21 and D22, resistors R314 and R315, and an optical solid-state relay U50. When an external charging gun is connected, the detection signals VIN_A+ and VIN_A1+ are connected to the positive terminals of diodes D21 and D22, respectively. The negative terminals of both D21 and D22 are connected to resistor R314. Simultaneously, the negative terminals of D21 and D22 serve as the output terminals of the charging gun triggering signal detection signal CHARG_GUN. The other end of resistor R314 is connected to pin 1 of the optical solid-state relay U50. Pin 2 of the solid-state relay U50 is grounded. Pin 4 of the optical solid-state relay U50 is connected to the constant power POWER_OUT via a series resistor R315. Pin 3 of the optical solid-state relay U50 is connected to the connection interface of the control signal POWER_IN-1 of the main circuit.

5. The on / off control circuit for a multi-control mode energy storage system according to claim 1, characterized in that, The high-voltage secondary power supply control circuit consists of resistors R28 and R29, capacitors C26 and C167, diode D20, transistor Q2, relay K1, and fuse F1. One end of resistor R29 is connected to the microcontroller, and the other end is connected to the base of transistor Q2. The emitter of transistor Q2 is grounded. The collector of transistor Q2 is connected to the anode of diode D20 and pin 2 of relay K1. The cathode of diode D20 and pin 1 of relay K1 are both connected to the power supply VCC5V. Pin 3 of relay K1 outputs the control signal POWER_K2. Pin 4 of relay K1 is connected to one end of fuse F1, and the other end of fuse F1 outputs the control signal POWER_K1. One end of resistor R28 and capacitor C26 is connected between resistor R29 and transistor Q2, and the other end is grounded; one end of capacitor C167 is connected between power supply VCC5V and diode D20, and the other end is grounded.

6. The on / off control circuit for a multi-control mode energy storage system according to claim 1, characterized in that, The push-button switch detection circuit consists of resistors R96, R99, R104, R105, and R100, capacitor C73, and optocoupler U16. One end of resistor R99 is the input terminal of the power button detection signal KEY_IN, and the other end is connected to one end of resistors R96, R104, and capacitor C73 respectively. The other ends of resistors R104 and capacitor C73 are connected to the VIN- port. The other end of resistor R96 is connected to pin 1 of optocoupler U16, pin 2 of optocoupler U16 is connected to the input VIN- port, and pin 3 of optocoupler U16 is grounded. Pin 4 of optocoupler U16 is connected to one end of resistors R100 and R105 respectively. The other end of resistor R100 is connected to the power supply VCC3V3, and the other end of resistor R105 outputs the button status detection signal DOH13 to an external microcontroller.

7. The on / off control circuit for a multi-control mode energy storage system according to claim 1, characterized in that, The charging gun trigger detection circuit consists of resistors R313, R324, R325, R353, and R355, capacitor C183, and optocoupler U53. One end of resistor R313 is connected to the charging gun trigger signal detection signal CHARG_GUN, and the other end is connected to one end of resistors R324, R325, and capacitor C183 respectively. The other ends of resistors R324 and capacitor C183 are grounded. The other end of resistor R325 is connected to pin 1 of optocoupler U53. Pins 2 and 3 of optocoupler U53 are both grounded. Pin 4 of optocoupler U53 is connected to one end of resistors R353 and R355 respectively. The other end of resistor R353 is connected to power supply VCC3V3. The other end of resistor R355 outputs the charging gun trigger detection signal DOH14 to an external microcontroller.

8. The on / off control circuit for a multi-control mode energy storage system according to claim 2, characterized in that, The power switch button and power connector circuit consists of a varistor VAR1, a high-current diode D4, and a 6-pin connector J1. Pins 1 and 3 of the high-current diode D4 are connected to DC+, and pin 2 is connected to pin 5 of connector J1. One end of the varistor VAR1 is connected to pin 6 of connector J1, and both the varistor VAR1 and pin 6 of connector J1 are connected to VIN+. The other end of the varistor VAR1 is connected to pins 2 and 3 of connector J1. At the same time, varistor VAR1, pins 2 and 3 of connector J1 are all connected to the negative power supply VIN- and DC-. Pin 4 of connector J1 is connected to the constant power POWER_OUT, and pin 1 is the external power button detection signal KEY_IN input pin. Pins 4 and 1 of J1 are shorted by a non-locking button.

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