Auxiliary source activation circuit and energy storage system

Abstract

The utility model relates to the technical field of energy storage power supply especially relates to a kind of auxiliary source activation circuit and energy storage system, and the circuit includes control module, and the inhibitory module and activation module connected with control module respectively, control module is also used to connect power supply, inhibitory module and activation module are also used to connect auxiliary source module.When control module receives voltage signal, if voltage signal is greater than voltage threshold value, then output control signal to activation module, to make activation module start working, to output activation signal to auxiliary source module, to control auxiliary source module start working.When auxiliary source module starts working, auxiliary source module is controlled by internal controller Work state, at this time, inhibitory module will output inhibitory signal to control module, to make control module control activation module stop output activation signal, to avoid the situation that auxiliary source module cannot normally power down due to continuously receiving activation signal, to avoid energy waste while improving the reliability of energy storage system.

Description

[Technical Field] This utility model relates to the technical field of energy storage power supply, and in particular to an auxiliary power source activation circuit and energy storage system. [Background Technology] With the innovation of technology and power electronics, energy storage products have developed rapidly in scenarios such as energy storage and emergency power supply, and have been widely used in many fields. The mainstream charging methods are photovoltaic (PV) charging and mains (AC) charging, which can meet the needs of different users.

[0001] When energy storage devices are not powered on, they require PV or AC activation to start the system. Upon connection to the corresponding power source, an activation signal is triggered, and the system switches to operating mode to complete charging and other processes. However, in the current circuit, the activation signal persists after the device is activated, interfering with the system's power-down control logic. This prevents the device from properly entering standby or shutdown mode when charging is complete or when no further operation is needed, resulting in unnecessary energy loss. Furthermore, systems operating in abnormal conditions for extended periods may face potential problems such as accelerated component wear and decreased operational stability, impacting product lifespan and user experience.

[0002] Therefore, how to improve the reliability and lifespan of energy storage products while avoiding energy waste is an urgent technical problem to be solved. [Utility Model Content] This utility model provides an auxiliary power source activation circuit and an energy storage system, aiming to solve the technical problems of low reliability, short service life and energy waste in the existing energy storage system.

[0003] To solve the above-mentioned technical problems, one technical solution adopted by the present invention is to provide an auxiliary source activation circuit, which includes a control module, an activation module and an inhibition module. The control module is connected to the suppression module and the activation module respectively. The control module is also used to connect to the power supply. The suppression module and the activation module are also used to connect to the auxiliary power supply module. The control module is used to receive the voltage signal output by the power supply, and when the voltage signal is greater than the voltage threshold, output a control signal to the activation module; The activation module is used to receive the control signal and output an activation signal to the auxiliary source module based on the control signal, so that the auxiliary source module starts working based on the activation signal; The suppression module is used to output a suppression signal to the control module after the auxiliary source module starts working, so that the control module stops outputting the control signal based on the suppression signal, thereby causing the activation module to stop outputting the activation signal.

[0004] Optionally, the control module includes a voltage divider unit and a judgment unit; The voltage divider unit is connected to the judgment unit, the judgment unit is connected to the suppression module and the activation module respectively, and the voltage divider unit is also used to connect to the power supply. The voltage divider unit is used to receive the voltage signal from the power supply and divide the voltage signal to output a voltage divider signal to the judgment unit. The judgment unit is used to receive the voltage divider signal and, when the voltage divider signal is greater than a voltage threshold, output a control signal to the activation module; and Upon receiving the suppression signal, the system stops operating based on the suppression signal, thereby ceasing the output of the control signal and causing the activation module to stop working.

[0005] Optionally, the determination unit is a voltage regulator ZD2; The reference input terminal of the voltage regulator ZD2 is connected to the voltage divider unit, the cathode of the voltage regulator ZD2 is connected to the activation module, and the anode of the voltage regulator ZD2 is used for grounding.

[0006] Optionally, the auxiliary source activation circuit further includes a clamping module; The clamping module is connected to the suppression module and the judgment unit respectively, and the clamping module is also used to connect to the power supply. The clamping module is used to receive the voltage signal output by the power supply, and clamp the voltage divider signal to the first preset value when the voltage signal is greater than the first preset value, wherein the first preset value is greater than the voltage threshold.

[0007] Optionally, the clamping module includes resistors R2 and R3 and a Zener diode ZD1; The cathode of the Zener diode ZD1 is connected to the resistor R2 via the resistor R3. The cathode of the Zener diode ZD1 is also connected to the judgment unit. The anode of the Zener diode ZD1 is used for grounding. The resistor R2 is also used for connection to the power supply.

[0008] Optionally, the activation module includes an optocoupler U2 and a resistor R9; The first pin of the optocoupler U2 is connected to the resistor R3, the second pin of the optocoupler U2 is connected to the judgment unit, the third pin of the optocoupler U2 is connected to the auxiliary power module through the resistor R9, and the fourth pin of the optocoupler U2 is used for grounding.

[0009] Optionally, the suppression module includes resistor R1, resistor R6, and optocoupler U1; The first pin of the optocoupler U1 is connected to the auxiliary power module through the resistor R1, the second pin of the optocoupler U1 is grounded, the third pin of the optocoupler U1 is connected to the cathode of the Zener diode ZD1 through the resistor R6, and the fourth pin of the optocoupler U1 is grounded.

[0010] Optionally, the auxiliary source activation circuit further includes an overvoltage module; The overvoltage module is connected to the activation module, and the overvoltage module is also used to connect to the power supply. The overvoltage module is used to detect the voltage signal output by the power supply in real time, and starts working when the voltage signal is greater than a second preset value, thereby controlling the activation module to stop working and thus stopping the output of the activation signal.

[0011] Optionally, the overvoltage module includes a switching transistor Q1, a resistor R10, a Zener diode ZD3, and a capacitor C2; The control terminal of the switching transistor Q1 is connected to the anode of the Zener diode ZD3 through the resistor R10. The cathode of the Zener diode ZD3 is connected to the power supply. The control terminal of the switching transistor Q1 is also grounded through the capacitor C2. The first terminal of the switching transistor Q1 is connected to the activation module, and the second terminal of the switching transistor Q1 is used for grounding.

[0012] To solve the above-mentioned technical problems, another technical solution adopted in this utility model embodiment is: to provide an energy storage system, the energy storage system comprising: Power supply; Auxiliary source module; and The auxiliary source activation circuit described above.

[0013] Unlike related technologies, this utility model provides an auxiliary power source activation circuit and energy storage system. The auxiliary power source activation circuit includes a control module, an activation module, and a suppression module. The control module is connected to both the suppression module and the activation module, and is also used to connect to a power supply. Both the suppression module and the activation module are connected to the auxiliary power source module, and the control module is also used to receive voltage signals. When the control module receives the voltage signal, if the voltage signal is greater than a voltage threshold, the control module outputs a control signal to the activation module to activate it. This ensures that the auxiliary power source module is activated when the voltage signal from the power supply is insufficient, preventing the auxiliary power source module from malfunctioning. Once the activation module is activated, it outputs an activation signal to the auxiliary power source module to activate it. Once the auxiliary power module starts working, its operating state is controlled by an internal controller. At this time, the suppression module will start working and output a suppression signal to the control module, causing the control module to stop working based on the suppression signal. This, in turn, controls the activation module to stop outputting the activation signal, thus preventing the auxiliary power module from failing to power down normally due to continuously receiving the activation signal. This not only avoids energy waste but also improves the reliability and lifespan of the energy storage system. [Attached Image Description] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0014] Figure 1 This is a structural block diagram of an energy storage system provided in an embodiment of the present invention; Figure 2 This is a structural block diagram of an auxiliary source activation circuit provided in an embodiment of the present invention; Figure 3 This is a circuit diagram of an auxiliary source activation circuit provided in an embodiment of the present invention.

Detailed Implementation Methods

[0015] The technical features involved in the various embodiments of this application described below do not conflict with each other and can be combined with each other.

[0016] When an element is described as "connected" to another element, it can be directly connected to the other element, or there may be one or more intervening elements between them.

[0017] The terms "first," "second," etc., used in the specification and claims of this utility model are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, the first object can be one or more.

[0018] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0019] Please see Figure 1 , Figure 1 This is a structural block diagram of an energy storage system provided in an embodiment of the present invention, as shown below. Figure 1 As shown, the energy storage system 100 includes a power supply 10, an auxiliary power module 20, and an auxiliary power activation circuit 30. The auxiliary power activation circuit 30 is connected to both the auxiliary power module 20 and the power supply 10. The auxiliary power activation circuit 30, upon receiving a power supply voltage from the power supply 10, starts operating based on that voltage, thereby outputting an activation signal to the auxiliary power module 20, causing the auxiliary power module 20 to start operating based on the activation signal. It should be noted that if the activation signal continues to be output after the auxiliary power module 20 starts operating based on the activation signal, the auxiliary power module 20 will remain in an activated operating state, preventing it from shutting down normally, leading to energy waste and reduced reliability of the energy storage system. Therefore, after the auxiliary power module 20 starts operating, the auxiliary power activation circuit 30 also receives the auxiliary power voltage output by the auxiliary power module 20 and stops outputting the activation signal based on that voltage, thus enabling the auxiliary power module 20 to shut down normally. The power supply 10 can be a battery, a photovoltaic input source, the power grid, or other power supply equipment.

[0020] In some embodiments, the auxiliary source module 20 includes a controller (not shown). When the auxiliary source module 20 is activated based on the activation signal, the auxiliary source module 20 starts to work. At this time, the controller inside the auxiliary source module 20 will output a sustaining signal to control the auxiliary source module 20 to continue working. At the same time, the auxiliary source activation circuit 30 will also stop outputting the activation signal. At this time, the working state of the auxiliary source module 20 is controlled by the controller.

[0021] In some embodiments, please refer to Figure 2 , Figure 2 This is a structural block diagram of an auxiliary source activation circuit provided in an embodiment of this utility model, as shown below. Figure 2 As shown, the auxiliary source activation circuit 30 includes a control module 31, an activation module 32, and a suppression module 33; The control module 31 is connected to the suppression module 33 and the activation module 32 respectively. The control module 31 is also used to connect to the power supply 10. The suppression module 33 and the activation module 32 are also used to connect to the auxiliary power supply module 20. The control module 31 is used to receive the voltage signal output by the power supply 10, and when the voltage signal is greater than the voltage threshold, output a control signal to the activation module 32; The activation module 32 is used to receive the control signal and output an activation signal to the auxiliary source module 20 based on the control signal, so that the auxiliary source module 20 starts working based on the activation signal; The suppression module 33 is used to output a suppression signal to the control module 31 after the auxiliary source module 20 starts working, so that the control module 31 stops outputting the control signal based on the suppression signal, thereby causing the activation module 32 to stop outputting the activation signal.

[0022] Specifically, when the auxiliary power supply module 20 needs to be activated, the power supply 10 outputs a voltage signal. The control module 31 receives the voltage signal and determines whether the voltage signal is greater than a voltage threshold. If the voltage signal is greater than the voltage threshold, it is considered that the voltage signal output by the power supply 10 can accurately activate the auxiliary power supply module 20, and the voltage signal meets the operating voltage of the auxiliary power supply module 20. At this time, the control module 31 outputs a control signal to the activation module 32 based on the voltage signal, so that the activation module 32 starts working based on the control signal, thereby outputting an activation signal to the auxiliary power supply module 20, so that the auxiliary power supply module 20 starts working based on the activation signal. After the auxiliary power supply module 20 is activated, the auxiliary power supply module 20 provides an auxiliary power supply voltage. The suppression module 33 receives the auxiliary power supply voltage and outputs a suppression signal to the control module 31 based on the auxiliary power supply voltage. When the control module 31 receives the suppression signal, it stops outputting control signals to the activation module 32 based on the suppression signal, thereby causing the activation module 32 to stop working. When the activation module 32 stops working, it will stop outputting activation signals. At this time, the auxiliary power module 20 can be controlled by the internal controller to operate and thus be powered on, thereby improving the reliability of the energy storage system 100 while avoiding resource waste.

[0023] In yet another embodiment, such as Figure 2 As shown, the control module 31 includes a voltage divider unit 311 and a judgment unit 312; The voltage divider unit 311 is connected to the judgment unit 312, the judgment unit 312 is connected to the suppression module 33 and the activation module 32 respectively, and the voltage divider unit 311 is also used to connect to the power supply 10. The voltage divider unit 311 is used to receive the voltage signal from the power supply 10 and divide the voltage signal to output the divided voltage signal to the judgment unit 312. The judgment unit 312 is used to receive the voltage divider signal and, when the voltage divider signal is greater than a voltage threshold, output a control signal to the activation module 32; and Upon receiving the suppression signal, the system stops operating based on the suppression signal, thereby stopping the output of the control signal and causing the activation module 32 to stop operating.

[0024] Specifically, when the power supply 10 outputs a voltage signal, the voltage divider unit 311 receives the voltage signal and divides it, thereby outputting a divided voltage signal to the judgment unit 312. Upon receiving the divided voltage signal, the judgment unit 312 determines whether the divided voltage signal is greater than the voltage threshold. If the divided voltage signal is greater than the voltage threshold, the judgment unit 312 starts working, outputting a control signal to the activation module 32, causing the activation module 32 to output an activation signal to activate the auxiliary module 20. After the auxiliary module 20 is activated, the suppression module 33 outputs a suppression signal to the judgment unit 312 to suppress the divided voltage signal input to the judgment unit 312 to below the voltage threshold. At this time, the voltage signal received by the judgment unit 312 is less than the voltage threshold, and the judgment unit 312 stops working, thereby stopping the output of the control signal, which in turn causes the activation module 32 to stop outputting the activation signal.

[0025] In some embodiments, please refer to Figure 3 , Figure 3 This is a circuit diagram of an auxiliary source activation circuit provided in an embodiment of this utility model, such as... Figure 3 As shown, the voltage divider unit 311 includes resistors R4, R5, and R8; the judgment unit 312 is a voltage regulator ZD2. The resistor R4 is connected to the resistor R5. The resistor R4 is also used to connect to the power supply 10. The resistor R5 is connected to the judgment unit 312 and the resistor R8 respectively. The resistor R8 is also used to ground.

[0026] The reference input terminal of the voltage regulator ZD2 is connected to the voltage divider unit 311, the cathode of the voltage regulator ZD2 is connected to the activation module 32, and the anode of the voltage regulator ZD2 is used for grounding.

[0027] It is known that the operating state of the voltage regulator is determined based on the voltage input to the reference input terminal. The voltage regulator only starts working when the voltage input to the reference input terminal is greater than the reference voltage of the voltage regulator. Therefore, when the power supply 10 outputs a voltage signal, resistors R4, R5, and R8 receive the voltage signal and divide it, thereby outputting a divided voltage signal to the voltage regulator ZD2. When the voltage regulator ZD2 receives the divided voltage signal, if the divided voltage signal is greater than the reference voltage (voltage threshold), the voltage regulator ZD2 starts working. After the voltage regulator ZD2 starts working, it outputs a control signal, thereby causing the activation module 32 to start working based on the control signal. When the auxiliary power supply module 20 is activated, the suppression module 33 outputs a suppression signal to the voltage regulator ZD2. At this time, the voltage divider signal received by the voltage regulator ZD2 is pulled low, so that the voltage at the reference input terminal of the voltage regulator ZD2 is less than the reference voltage, causing the voltage regulator ZD2 to stop working and thus stop outputting control signals.

[0028] In some embodiments, such as Figure 2 As shown, the auxiliary source activation circuit 30 also includes a clamping module 34; The clamping module 34 is connected to the suppression module 33 and the judgment unit 312 respectively, and the clamping module 34 is also used to connect to the power supply 10; The clamping module 34 is used to receive the voltage signal output by the power supply 10, and clamp the voltage divider signal to the first preset value when the voltage signal is greater than the first preset value, wherein the first preset value is greater than the voltage threshold.

[0029] It is understood that when the power supply 10 outputs a voltage signal, the voltage divider unit 311 receives the voltage signal and divides the voltage signal to output a divided voltage signal to the judgment unit 312. At the same time, the clamping module 34 also receives the voltage signal and determines whether the voltage signal is greater than a first preset value. When the voltage signal is greater than the first preset value, it starts to work, thereby limiting the divided voltage signal to the first preset value. This prevents the voltage regulator ZD2 from being damaged when the power supply voltage is too high, thereby improving the reliability of the energy storage system 100.

[0030] In some embodiments, such as Figure 3 As shown, the clamping module 34 includes resistors R2 and R3 and a Zener diode ZD1; The cathode of the Zener diode ZD1 is connected to the resistor R2 via the resistor R3. The cathode of the Zener diode ZD1 is also connected to the judgment unit 312. The anode of the Zener diode ZD1 is used for grounding. The resistor R2 is also used for connection to the power supply 10.

[0031] Specifically, when the power supply 10 outputs the voltage signal, the voltage signal is input to the Zener diode ZD1 through resistors R2 and R3. If the voltage signal is greater than the Zener diode ZD1's voltage regulation value (first preset value), the Zener diode ZD1 will break down. When the Zener diode ZD1 breaks down, the voltage across the Zener diode ZD1 will be limited to the first preset value. At this time, since the cathode of the Zener diode ZD1 is connected to the judgment unit 312, the voltage of the judgment unit 312 will also be limited to the first preset value, thereby preventing damage to the devices in the judgment unit 312 when the voltage signal from the power supply 10 is too large.

[0032] In some embodiments, such as Figure 3 As shown, the activation module 32 includes an optocoupler U2 and a resistor R9; The first pin of the optocoupler U2 is connected to the resistor R3, the second pin of the optocoupler U2 is connected to the judgment unit 312, the third pin of the optocoupler U2 is connected to the auxiliary power module 20 through the resistor R9, and the fourth pin of the optocoupler U2 is used for grounding.

[0033] Specifically, when the judgment unit 312 outputs a control signal, the optocoupler U2 receives the control signal and starts working based on the control signal. After the optocoupler U2 starts working based on the control signal, the optocoupler U4 outputs an activation signal to the auxiliary source module 20, so that the auxiliary source module 20 is activated based on the activation signal.

[0034] In another embodiment, such as Figure 3 As shown, the suppression module 33 includes resistor R1, resistor R6, and optocoupler U1; The first pin of the optocoupler U1 is connected to the auxiliary power module 20 through the resistor R1, the second pin of the optocoupler U1 is grounded, the third pin of the optocoupler U1 is connected to the cathode of the Zener diode ZD1 through the resistor R6, and the fourth pin of the optocoupler U1 is grounded.

[0035] Specifically, when the auxiliary power supply module 20 is activated, it provides an auxiliary power supply voltage. The optocoupler U1 receives this auxiliary power supply voltage through the resistor R1 and starts operating based on it. After the optocoupler U1 starts operating, the voltage signal from the power supply 10 also flows into the ground terminal through the resistor R6 and the optocoupler U1. At this time, the voltage received by the Zener diode ZD1 is reduced below the regulated value, preventing the Zener diode ZD1 from breaking down. Once the Zener diode ZD1 has not broken down, the judgment unit 312 receives the suppression signal and stops outputting the control signal based on it, thereby causing the activation module 32 to stop operating.

[0036] In some embodiments, such as Figure 2 As shown, the auxiliary source activation circuit 20 also includes an overvoltage module 35; The overvoltage module 35 is connected to the activation module 32, and the overvoltage module 35 is also used to connect to the power supply 10; The overvoltage module 35 is used to detect the voltage signal output by the power supply 10 in real time, and starts to work when the voltage signal is greater than a second preset value, thereby controlling the activation module 32 to stop working and thus stopping the output of the activation signal.

[0037] Specifically, when the power supply 10 outputs a voltage signal, the overvoltage module 35 receives and detects the voltage signal in real time, and determines whether the voltage signal is greater than a second preset value. It then starts operating when the voltage is greater than the second preset value. After the overvoltage module 35 starts operating, it outputs a shutdown signal to the activation module 32 to stop the activation module 32 from operating and thus stop outputting the activation signal. Based on this, damage to the auxiliary power supply module 20 can be avoided when the voltage signal is too high, thereby improving the reliability and safety of the energy storage system 100.

[0038] In some other embodiments, such as Figure 3 As shown, the overvoltage module 35 includes a switching transistor Q1, a resistor R10, a Zener diode ZD3, and a capacitor C2; The control terminal of the switching transistor Q1 is connected to the anode of the Zener diode ZD3 through the resistor R10. The cathode of the Zener diode ZD3 is connected to the power supply 10. The control terminal of the switching transistor Q1 is also grounded through the capacitor C2. The first terminal of the switching transistor Q1 is connected to the activation module 32, and the second terminal of the switching transistor Q1 is used for grounding.

[0039] When the power supply 10 outputs a voltage signal, the voltage signal is input to the Zener diode ZD3. If the voltage signal is greater than the Zener voltage of the Zener diode ZD3, the Zener diode ZD3 will break down. When the Zener diode ZD3 breaks down, the switching transistor Q1 will also turn on, thereby pulling the signal received by the activation module 32 low, causing the activation module 32 to turn off and stop outputting the activation signal.

[0040] In some embodiments, when the voltage signal output by the power supply 10 is an AC signal, the auxiliary power source activation circuit 30 further includes a rectifier module 36; The rectifier module 36 is connected to the power supply 10, and the rectifier module 36 is also connected to the control module 31; The rectifier module 36 is used to receive the voltage signal and process the voltage signal to output a DC signal to the control module 31.

[0041] When the power supply 10 outputs an AC signal, the rectifier module 36 receives the AC signal and processes it to convert it into a smooth DC signal before outputting it to the control module 31.

[0042] In yet another embodiment, such as Figure 3 As shown, the rectifier module 36 includes a full-bridge rectifier bridge DB1 and a capacitor C1; The full-bridge rectifier bridge DB1 is connected to the capacitor C1, and the capacitor C1 is connected to the control module 31. The full-bridge rectifier bridge DB1 is also used to connect to the power supply 10. Specifically, the full-bridge rectifier bridge DB1 receives the voltage signal output from the power supply 10, rectifies the voltage signal, and then inputs it to the capacitor C1. Upon receiving the rectified voltage signal, the capacitor C1 filters the voltage signal to output a smooth DC signal.

[0043] In some embodiments, such as Figure 3As shown, when the power supply 10 outputs a voltage signal, the rectifier module 36 rectifies and filters the voltage signal before outputting it. At this time, resistors R4, R5, and R8 divide the voltage signal to output a divided voltage signal to the voltage regulator ZD1; simultaneously, the Zener diode ZD1 receives the voltage signal through resistors R3 and R2, and limits the voltage signal to a first preset value when it exceeds that value. Since the cathode of the Zener diode ZD1 is connected to the reference input terminal of the voltage regulator ZD2, the divided voltage signal input to the voltage regulator ZD2 is clamped. When the divided voltage signal exceeds the voltage threshold, the voltage regulator ZD2 starts operating, grounding the second pin of the optocoupler U2 through the voltage regulator ZD2. The optocoupler U2 then outputs an activation signal to activate the auxiliary power supply module 20. Once the auxiliary power supply module 20 is activated, the optocoupler U1 receives the auxiliary power supply voltage and starts operating based on that voltage. When the optocoupler U1 starts working, the voltage signal also passes through R6 and the optocoupler, thereby lowering the cathode voltage of the Zener diode ZD1 to prevent it from breaking down. The reference input voltage of the voltage regulator ZD2 is also lowered, causing ZD2 to stop working. When ZD2 stops working, the optocoupler U2 also stops working, thus ceasing to output the activation signal. Based on this, the auxiliary power module 20 can be powered down normally, avoiding energy waste and improving the reliability of the energy storage system.

[0044] This utility model embodiment provides an auxiliary power source activation circuit, which includes a control module, an activation module, and a suppression module. The control module is connected to both the suppression module and the activation module, and is also used to connect to a power supply. Both the suppression module and the activation module are also connected to an auxiliary power source module, and the control module is also used to receive voltage signals. When the control module receives the voltage signal, if the voltage signal is greater than a voltage threshold, the control module outputs a control signal to the activation module to activate it. This ensures that the auxiliary power source module is activated when the voltage signal output from the power supply is insufficient, preventing the auxiliary power source module from malfunctioning. Once the activation module is activated, it outputs an activation signal to the auxiliary power source module to activate it. Once the auxiliary power module starts working, its operating state is controlled by an internal controller. At this time, the suppression module will start working and output a suppression signal to the control module, causing the control module to stop working based on the suppression signal. This, in turn, controls the activation module to stop outputting the activation signal, thus preventing the auxiliary power module from failing to power down normally due to continuously receiving the activation signal. This not only avoids energy waste but also improves the reliability and lifespan of the energy storage system.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; under the concept of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this utility model as described above, which are not provided in detail for the sake of brevity; although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An auxiliary source activation circuit, characterized in that, The auxiliary source activation circuit includes a control module, an activation module, and a suppression module; The control module is connected to the suppression module and the activation module respectively. The control module is also used to connect to the power supply. The suppression module and the activation module are also used to connect to the auxiliary power supply module. The control module is used to receive the voltage signal output by the power supply, and when the voltage signal is greater than the voltage threshold, output a control signal to the activation module; The activation module is used to receive the control signal and output an activation signal to the auxiliary source module based on the control signal, so that the auxiliary source module starts working based on the activation signal; The suppression module is used to output a suppression signal to the control module after the auxiliary source module starts working, so that the control module stops outputting the control signal based on the suppression signal, thereby causing the activation module to stop outputting the activation signal.

2. The auxiliary source activation circuit according to claim 1, characterized in that, The control module includes a voltage divider unit and a judgment unit; The voltage divider unit is connected to the judgment unit, the judgment unit is connected to the suppression module and the activation module respectively, and the voltage divider unit is also used to connect to the power supply. The voltage divider unit is used to receive the voltage signal from the power supply and divide the voltage signal to output a voltage divider signal to the judgment unit. The judgment unit is used to receive the voltage divider signal and output a control signal to the activation module when the voltage divider signal is greater than the voltage threshold. as well as Upon receiving the suppression signal, the system stops operating based on the suppression signal, thereby ceasing the output of the control signal and causing the activation module to stop working.

3. The auxiliary source activation circuit according to claim 2, characterized in that, The judgment unit is voltage regulator ZD2; The reference input terminal of the voltage regulator ZD2 is connected to the voltage divider unit, the cathode of the voltage regulator ZD2 is connected to the activation module, and the anode of the voltage regulator ZD2 is used for grounding.

4. The auxiliary source activation circuit according to claim 2 or 3, characterized in that, The auxiliary source activation circuit also includes a clamping module; The clamping module is connected to the suppression module and the judgment unit respectively, and the clamping module is also used to connect to the power supply. The clamping module is used to receive the voltage signal output by the power supply, and clamp the voltage divider signal to the first preset value when the voltage signal is greater than the first preset value, wherein the first preset value is greater than the voltage threshold.

5. The auxiliary source activation circuit according to claim 4, characterized in that, The clamping module includes resistor R2, resistor R3, and Zener diode ZD1; The cathode of the Zener diode ZD1 is connected to the resistor R2 via the resistor R3. The cathode of the Zener diode ZD1 is also connected to the judgment unit. The anode of the Zener diode ZD1 is used for grounding. The resistor R2 is also used for connection to the power supply.

6. The auxiliary source activation circuit according to claim 5, characterized in that, The activation module includes an optocoupler U2 and a resistor R9; The first pin of the optocoupler U2 is connected to the resistor R3, the second pin of the optocoupler U2 is connected to the judgment unit, the third pin of the optocoupler U2 is connected to the auxiliary power module through the resistor R9, and the fourth pin of the optocoupler U2 is used for grounding.

7. The auxiliary source activation circuit according to claim 5, characterized in that, The suppression module includes resistor R1, resistor R6, and optocoupler U1; The first pin of the optocoupler U1 is connected to the auxiliary power module through the resistor R1, the second pin of the optocoupler U1 is grounded, the third pin of the optocoupler U1 is connected to the cathode of the Zener diode ZD1 through the resistor R6, and the fourth pin of the optocoupler U1 is grounded.

8. The auxiliary source activation circuit according to any one of claims 1-3, characterized in that, The auxiliary source activation circuit also includes an overvoltage module; The overvoltage module is connected to the activation module, and the overvoltage module is also used to connect to the power supply. The overvoltage module is used to detect the voltage signal output by the power supply in real time, and starts working when the voltage signal is greater than a second preset value, thereby controlling the activation module to stop working and thus stopping the output of the activation signal.

9. The auxiliary source activation circuit according to claim 8, characterized in that, The overvoltage module includes a switching transistor Q1, a resistor R10, a Zener diode ZD3, and a capacitor C2; The control terminal of the switching transistor Q1 is connected to the anode of the Zener diode ZD3 through the resistor R10. The cathode of the Zener diode ZD3 is connected to the power supply. The control terminal of the switching transistor Q1 is also grounded through the capacitor C2. The first terminal of the switching transistor Q1 is connected to the activation module, and the second terminal of the switching transistor Q1 is used for grounding.

10. An energy storage system, characterized in that, The energy storage system includes: Power supply; Auxiliary source module; and The auxiliary source activation circuit as described in any one of claims 1-9.

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