Multifunctional bidirectional portable energy storage power supply

Abstract

The present application relates to the field of energy storage charging, and specifically provides a multifunctional bidirectional portable energy storage power supply, comprising: an MCU management controller, a bidirectional inverter module connected with the MCU management controller, a first DC manager, a second DC manager, a wireless charging module, a BMS management battery pack and a third DC manager; wherein the bidirectional inverter module is provided with an AC input end and an AC output end; the first DC manager is connected with a solar input end; the second DC manager is connected with a DC car charging output end; and the third DC manager is connected with a USB / Type module. The present application is used for ensuring that bidirectional charging can be realized under outdoor environment, and in addition, multifunctionality can be realized. When bidirectional inversion is realized, fast bidirectional inversion triggering is realized without any delay.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage charging, in particular to a multifunctional bidirectional portable energy storage power supply. BACKGROUND

[0002] The portable energy storage power supply is a power supply device used outdoors. In the face of noisy environment and busy work, people will go out for a tour around the neighborhood on weekends, relax themselves and get close to nature. It generally stores electricity through a large-capacity battery, with a capacity of tens of thousands to hundreds of thousands of milliampere, and can output direct current and alternating current, such as direct current 5V, 9V, alternating current 220V, etc. Through the portable energy storage power supply, mobile phones, computers or other direct current or alternating current electronic products can be powered.

[0003] At present, with the development of science and technology, people's demand for energy is increasing, and the traditional energy supply mode is often limited by geographical location, climate conditions and other factors, and can only be powered through the national power grid or can only be powered by clean energy such as solar energy, and the function is single, only has the functions of charging and discharging, does not have the functions of sound, wireless charging, Bluetooth, etc., and the user experience is poor. SUMMARY

[0004] The present application provides a multifunctional bidirectional portable energy storage power supply to solve the problem that the traditional energy supply mode is often limited by geographical location, climate conditions and other factors, and the function is single, only has the functions of charging and discharging, does not have the functions of sound, wireless charging, Bluetooth, etc., and the user experience is poor.

[0005] The present application provides a multifunctional bidirectional portable energy storage power supply, comprising:

[0006] MCU management controller:

[0007] The bidirectional inverter module, the first DC manager, the second DC manager, the wireless charging module, the BMS management battery pack and the third DC manager connected with the MCU management controller; wherein,

[0008] The bidirectional inverter module is configured with an AC input end and an AC output end;

[0009] The first DC manager is connected to control the solar input end;

[0010] The second DC management is connected to the DC car charging output end;

[0011] The third DC manager is connected to the USB / Type module.

[0012] Further, the bidirectional inverter module is configured with a rectification mode and an inverter mode; wherein,

[0013] The AC input terminal is connected to a first potential element, and the AC output terminal is connected to a second potential element; wherein...

[0014] The first and second potential elements are respectively connected to the potential trigger terminal of the MCU manager, and the potential trigger terminal is at 0 potential by default;

[0015] When the first real-time potential of the first potential element is greater than the potential trigger terminal and the second real-time potential of the second potential element, an input signal is generated at the AC input terminal.

[0016] When a potential signal exists at the potential trigger terminal, the second potential element generates a response potential, and when the first real-time potential of the first potential element is 0, an output signal is generated at the AC output terminal. The response potential is not unique.

[0017] When the bidirectional inverter module receives an input signal from the AC input terminal, it executes rectification mode and charges the BMS-managed battery pack using mains power; whereby...

[0018] The AC input is less than 400W;

[0019] When the bidirectional inverter module receives the output signal from the AC output terminal, it executes the inverter mode and uses the BMS to manage the battery pack to supply power to external devices.

[0020] Furthermore, the first DC manager is used to receive solar signals and perform a first charging path switch to initiate a charging mode; wherein,

[0021] When performing the first charging path switch, the BMS manages the battery pack to connect to the solar input port through the first DC manager;

[0022] The DC power at the solar input port is less than 100W.

[0023] Furthermore, the second DC manager is used to receive the DC vehicle charger output signal and perform a first power supply path switch to start the vehicle charger power supply mode; wherein,

[0024] When performing the first power supply path switch, the BMS manages the battery pack and connects it to the DC vehicle charger output terminal through the second DC manager.

[0025] Furthermore, the wireless charging module is used to receive contact signals from external devices, perform a second power supply path switch, and activate the wireless power supply mode; wherein,

[0026] When the second power supply path switch is performed, the BMS manages the battery pack to supply power to the wireless charging module.

[0027] Further, the MCU management controller is also connected with the atmosphere lamp module, when receiving the atmosphere lamp starting signal, the third power supply path switching is executed, and the atmosphere lamp power supply mode is started; wherein,

[0028] When the third power supply path switching is executed, the BMS management battery pack supplies power to the atmosphere lamp module.

[0029] Further, the third DC manager receives the output signal of the USB / Type module, executes the fourth power supply path switching, and starts the PD / PPS power supply mode; wherein,

[0030] When the fourth power supply path switching is executed, the BMS management battery pack supplies power to the USB / Type module.

[0031] Further, the MCU management controller is also connected with the sound box module, when receiving the sound box starting signal, the fifth power supply path switching is executed, and the sound box power supply mode is started; wherein,

[0032] When the fifth power supply path switching is executed, the BMS management battery pack supplies power to the sound box module.

[0033] Further, the MCU management controller is also connected with the LCD display module, and the LCD display module is used for displaying the module real-time state of the bidirectional inversion module, the first DC manager, the second DC manager, the wireless charging module, the BMS management battery pack and the third DC manager; wherein,

[0034] The module real-time state is detected and acquired by the MCU management controller.

[0035] The beneficial effects of the present application are as follows:

[0036] Multifunctionality: The energy storage power supply integrates multiple interfaces and functions, such as bidirectional inversion module, DC manager, wireless charging module, etc., which can meet various charging and power supply needs and be suitable for different scenes and devices.

[0037] Bidirectional charging and discharging: The design of the bidirectional inversion module enables the energy to flow in both directions, which can not only output electric energy as a power supply, but also absorb electric energy as a charger, thereby improving the energy utilization efficiency.

[0038] Perfect management system: The MCU management controller and the BMS management battery pack can monitor and manage the working state of the power supply in real time, ensuring the safe and stable operation of the power supply.

[0039] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. The objects and other advantages of the present application can be achieved and obtained by the structure particularly pointed out in the written description and the accompanying drawings.

[0040] The technical solutions of the present application are described in further detail below with reference to the accompanying drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0041] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application and are used to explain the present application together with the embodiments of the present application, and do not constitute a limitation on the present application. In the drawings:

[0042] Figure 1 is a component diagram of a multifunctional bidirectional portable energy storage power supply in an embodiment of the present application;

[0043] Figure 2 is an exploded view of a multifunctional bidirectional portable energy storage power supply in an embodiment of the present application;

[0044] Figure 3 is a front shell display diagram of a multifunctional bidirectional portable energy storage power supply in an embodiment of the present application;

[0045] Figure 4 is a rear shell display diagram of a multifunctional bidirectional portable energy storage power supply in an embodiment of the present application. DETAILED DESCRIPTION

[0046] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application, and do not limit the present application.

[0047] The power bank is a traditional portable energy storage power supply. The parameters of the traditional power bank are mostly 5000mAh, 10000mAh, 20000mAh, etc. The output current is mainly 0.5 and 2.4A, and it can only be used for mobile phones, LED lighting, small fans and other low-power devices. However, the common electric vehicle battery specifications on the market are mainly 48 volts (V), 60V and 72V. The voltage and current (Ah) of the battery together determine the total capacity of the battery (in watt hours, Wh). For example, the battery capacity of 48V20Ah is 960Wh, the battery capacity of 60V20Ah is 1200Wh, and the battery capacity of 72V32Ah is 2304Wh. The traditional power bank cannot charge the electric vehicle, and also cannot be charged by solar energy. The present application proposes a multifunctional bidirectional portable energy storage power supply that can realize vehicle charging, ordinary mobile phones, LED lights and other small-power devices, wireless charging, and charging by mains and solar energy. A comprehensive multifunctional portable energy storage power supply is designed to realize external device power supply and energy storage. Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown in the present application, the multifunctional bidirectional portable energy storage power supply comprises:

[0048] The shell comprises a front shell 11, a rear shell 13 and a middle frame 18; the front shell 11 is further provided with a vehicle charging port 100, a first double plug switch 101 and a second double plug switch 102. The rear shell 12 is provided with an integrated port 103 and an energy storage power switch 104, and the power switch 104 is provided with a sound box switch and an atmosphere lamp switch on both sides.

[0049] The MCU management controller 16 installed in the shell interior:

[0050] The bidirectional inverter module 15, the first DC manager, the second DC manager, the wireless charging module 14, the BMS management battery pack 19 and the third DC manager connected with the MCU management controller 16; wherein,

[0051] The bidirectional inverter module is configured with an AC input end and an AC output end;

[0052] The first DC manager is connected to control the solar input end;

[0053] The second DC management is connected to the DC vehicle charging output end;

[0054] The third DC manager is connected to the USB / Type module.

[0055] In the specific implementation process, as shown in Figure 1 and Figure 2 The portable power supply of the present application meets the charging needs of various devices, and simultaneously has bidirectional inversion, solar input, DC vehicle charging output and USB / Type interfaces, so as to conveniently realize the rapid charging of devices.

[0056] Firstly, the charging function is inherited, and the bidirectional inverter module 15, the first DC manager, the second DC manager, the wireless charging module 14, the BMS management battery pack 19 and the third DC manager are integrated together to form a highly integrated power supply system. The power supply system not only meets the charging needs of various devices, but also has higher efficiency and more convenient use due to the close cooperation between the modules. The BMS management battery pack is controlled by the BMS manager 13;

[0057] In the implementation of the present application, the bidirectional inverter module 15 part realizes the conversion of input and output functions of the power supply by integrating the bidirectional inverter module in the system, so that the power supply can provide power for the load at any time. Secondly, the first DC manager and the second DC manager part are responsible for the control of the solar input end and the DC car charging output end respectively, and through the management of the two modules, the device can effectively access and utilize solar energy or DC car charging for charging. The bidirectional inverter module of the present application not only can realize the charging function, but also can realize the voltage conversion function, so as to realize the voltage change of the car charger.

[0058] In addition, the wireless charging module 14 part is responsible for receiving wireless charging signals, so as to realize the charging mode of wireless charging of the device. The BMS management battery pack 19 and the third DC manager part are responsible for monitoring and protecting the state of the battery, ensuring the safe and reliable operation of the battery.

[0059] The above technical scheme has the advantages that:

[0060] Multifunctionality: The energy storage power supply integrates multiple interfaces and functions, such as bidirectional inverter module, DC manager, wireless charging module, etc., which can meet various charging and power supply needs and be suitable for different scenes and devices.

[0061] Bidirectional charging and discharging: The design of the bidirectional inverter module enables it to realize the bidirectional flow of energy, which can not only output electric energy as a power supply, but also absorb electric energy as a charger, improving the utilization efficiency of energy.

[0062] Perfect management system: The MCU management controller and the BMS management battery pack can monitor and manage the working state of the power supply in real time, ensuring the safe and stable operation of the power supply.

[0063] Portability: The design of the energy storage power supply is light and portable, which is convenient for users to use in outdoor or travel.

[0064] As an embodiment of the present application, the bidirectional inverter module 15 is configured with a rectification mode and an inversion mode; wherein,

[0065] The AC input end is connected with a first potential element, and the AC output end is connected with a second potential element; wherein,

[0066] The first potential element and the second potential element are connected with the potential trigger end of the MCU manager respectively, and the potential trigger end is 0 potential by default;

[0067] When the first real-time potential of the first potential element is greater than the potential trigger end and the second real-time potential of the second potential element, an input signal is generated at the AC input end;

[0068] When the potential signal exists in the potential trigger end, the second potential element generates a response potential, and when the first real-time potential of the first potential element is 0, an output signal is generated in the AC output end, and the response potential is not unique;

[0069] When the bidirectional inversion module 15 receives the input signal of the AC input end, the rectification mode is executed, and the BMS manages the battery pack 19 to be charged by the mains;

[0070] The AC input end is less than 400W;

[0071] When the bidirectional inversion module 15 receives the output signal of the AC output end, the inversion mode is executed, and the BMS manages the battery pack to supply power to the external device.

[0072] In the application, in order to more quickly realize the rectification mode and the inversion mode in the bidirectional inversion, the AC input end of the application is connected with the first potential element, and the AC output end is connected with the second potential element, and the rectification mode and the inversion mode are judged by the potential signal. In this process, if the potential of the first potential element is greater than the O potential of the potential trigger end of the MCU manager 16 and greater than the real-time potential of the second potential element at the same time, it indicates that there is a mains access, and at this time the rectification mode is executed. When the inversion mode is executed, the user issues a charging instruction, or other external devices are connected to the energy storage power supply of the application, at this time the MCU controller 16 generates a power supply instruction, and the power supply instruction generates different trigger signals in the potential trigger end. The trigger signal represents the power supply power, so the power supply signal is not unique, which realizes the power supply to devices with different powers, and performs inversion while adjusting the voltage.

[0073] When external power supply is needed, the portable energy storage power supply can execute the inversion mode by receiving the output signal of the AC output end, and the BMS (battery management system) controls the battery pack to supply power to the outside, at this time the power supply can provide stable power output for the external device. The input parameter of the AC input end of the application is 230V, 600W input power, and the input current is 2.6A,

[0074] When the power supply receives the input signal of the AC input end, but needs to charge the external device, the portable energy storage power supply can execute the rectification mode by receiving the input signal of the AC input end, and the BMS manages the battery pack 19 to be charged by the mains, at this time the power supply converts the mains into the battery acceptable electric energy and stores it in the battery pack.

[0075] As an embodiment of the application, the first DC manager is used to receive a solar signal and execute a first charging path switching to start a charging mode; wherein,

[0076] When the first charging path switching is performed, the BMS manages the battery pack to connect the solar input port through the first DC manager.

[0077] The direct current of the solar input port is less than 100W.

[0078] When the solar input port receives a charging signal and the direct current is less than 100W, the first DC manager starts to work and performs the first charging path switching. In this process, the BMS (battery management system) connects to the solar input port through the first DC manager to obtain solar power supply.

[0079] The application can further improve the utilization rate of solar energy, reduce the demand for commercial power, and enhance the applicability of the power supply in outdoor environment. Whether indoors or outdoors, whether in the sun or in the shade, as long as it can contact the sunlight, the portable energy storage power supply can realize charging by receiving solar energy.

[0080] As an embodiment of the application, the second DC manager is used to receive a DC car charging output signal and perform first power supply path switching to start a car charging power supply mode.

[0081] When the first power supply path switching is performed, the BMS manages the battery pack to connect the DC car charging output 17 through the second DC manager.

[0082] When the car charging power supply mode is started, the BMS (battery management system) connects to the DC car charging output 17 through the second DC manager. In this way, the portable power supply can obtain power from the power supply system of the vehicle to support the fast charging of the electric vehicle, and the car charging OUT of the application meets the requirements of 14V, 10A fast charging output DC5521 1+2+car charging: total 140W.

[0083] The application meets the high requirements of electric vehicle users for charging speed and charging safety, and ensures the stability and continuity of the portable power supply during use. Whether in the process of driving or in the charging time in the parking lot, the electric vehicle can be quickly charged.

[0084] As an embodiment of the application, the wireless charging module 14 is used to receive a contact signal of an external device, perform second power supply path switching, and start a wireless power supply mode.

[0085] When the second power supply path switching is performed, the BMS manages the battery pack 19 to supply power to the wireless charging module 14.

[0086] When the wireless power supply mode is enabled in the portable power supply, the BMS (battery management system) will supply power to it. At this time, the wireless charging module will receive the power supply instruction from the BMS, and then start the switching of the second power supply path. In this process, the wireless charging module 14 will identify and select the appropriate wireless charging voltage by receiving the contact signal of the external device, so as to realize fast wireless power supply and charge the external device.

[0087] As an embodiment of the present application, the MCU management controller 16 is also connected to the atmosphere lamp module. When receiving the atmosphere lamp start signal, it performs the third power supply path switching and starts the atmosphere lamp power supply mode; wherein,

[0088] When the third power supply path switching is performed, the BMS manages the battery pack 19 to supply power to the atmosphere lamp module 21.

[0089] When the portable power supply is used at night or in a specific scene, the atmosphere lamp module 21 can send a start signal to trigger the third power supply path switching of the power supply. At this time, the MCU management controller 16 will receive the start signal from the atmosphere lamp module 21 and supply power to it. In this way, even if there is no connection to other power supply devices, users can also provide light sources for the surrounding atmosphere through the portable power supply.

[0090] Not only enriches the function of the portable power supply, but also brings more fun to the user. Through the connection with different modules, the portable power supply can realize various flexible power supply modes according to the actual needs of the user and the environmental conditions, and meet the needs of different occasions and use scenarios.

[0091] As an embodiment of the present application, the third DC manager receives the output signal of the USB / Type module, performs the fourth power supply path switching, and starts the PD / PPS power supply mode; wherein the USB / Type module is installed on the rear shell 12 in the form of an integrated interface 103.

[0092] When the fourth power supply path switching is performed, the BMS manages the battery pack to supply power to the USB / Type module.

[0093] When the USB / Type device is used on the portable power supply, the USB / Type module can be inserted into the USB / Type interface of the portable power supply. At this time, the third DC manager will receive the output signal from the USB / Type module and switch the power supply path according to these signals.

[0094] When the fourth power supply path switching is performed, the BMS manages the battery pack 19 to supply power to the USB / Type module to ensure that the module works normally. In this way, the user can provide power for the portable power supply through the USB / Type module, and realize free switching of the power supply mode of the portable power supply.

[0095] When the USB / Type module is powered according to the present application, the following control scheme is met:

[0096] TYPE-C1 UT:

[0097] PD mode: 5V__3A, 9V__3A, 12V__3A, 15V__3A, 20V__5A;

[0098] PPS mode: 3.3-16V__5A, 3.3-21V__3A;

[0099] TYPE-C2 UT:

[0100] PD mode: 5V__3A, 9V__3A, 12V__3A, 15V__3A, 20V__5A;

[0101] PPS mode: 3.3-16V__5A, 3.3-21V__3A;

[0102] USB-A1 OUT:

[0103] QC3.0 / AFC mode: 5V / 3A; 9V / 2A; 12V / 1.5A;

[0104] High-voltage SCP: 10V2.25A (22.5W);

[0105] USB-A2 OUT:

[0106] QC3.0 / AFC mode: 5V / 3A; 9V / 2A; 12V / 1.5A;

[0107] High-voltage SCP: 10V2.25A (22.5W);

[0108] TypeC1+TypeC2+USB A1+USB A2 Total 245W;

[0109] DC5521 OUT1: 14V 10A;

[0110] DC5521 OUT2: 14V 10A;

[0111] The power supply mode can be selected according to actual conditions, and the use convenience of the portable power supply is improved.

[0112] As an embodiment of the present application, the MCU management controller 16 is further connected with the sound box module 20, and when receiving a sound box starting signal, the fifth power supply path switching is performed to start the sound box power supply mode.

[0113] When the fifth power supply path switching is performed, the BMS management battery pack supplies power to the sound box module 20.

[0114] When receiving the sound box starting signal, the MCU management controller 16 performs the fifth power supply path switching to start the sound box power supply mode. In this mode, the BMS management battery pack supplies power to the sound box module 20 to ensure the normal operation of the sound box. The present application not only meets the power supply demand of the sound box on the portable power supply, but also further expands the use scenario of the portable power supply.

[0115] As an embodiment of the present application, the MCU management controller 16 is further connected with the LCD display module, and the LCD display module is used to display the real-time state of the bidirectional inversion module, the first DC manager, the second DC manager, the wireless charging module, the BMS management battery pack and the third DC manager; wherein the real-time state is detected and acquired by the MCU management controller.

[0116] The LCD display module of the present application is specially designed, which can clearly display the specific state of the bidirectional inversion module, the first DC manager, the second DC manager, the wireless charging module, the BMS management battery pack and the third DC manager. These state information are detected and acquired by the MCU management controller. The accuracy of the information is ensured, and the user experience is enhanced, so that the user can more intuitively understand the working state of the power supply during use, discover and handle problems in time, and avoid potential dangers.

[0117] In the process of implementing the present application, the LCD display module is connected with the MCU management controller through a Schmitt trigger, and the real-time state of the bidirectional inversion module, the first DC manager, the second DC manager, the wireless charging module, the BMS management battery pack and the third DC manager are displayed in the form of time-based rising edge and falling edge square wave, and a circuit state image is generated; the circuit state image is compared by time frame in a fixed period to determine whether there is a state difference in time granularity, and when there is a state difference, the corresponding PWM signal is output; wherein the PWM signal is received by the MCU management controller and controls the output stability of the BMS management battery pack.

[0118] It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application cover modifications and variations of this application provided they come within the scope of the appended claims and their equivalents.

Claims

1. A multifunctional bidirectional portable energy storage power supply, characterized in that, include: shell; MCU management controller installed inside the housing: The system includes a bidirectional inverter module connected to the MCU management controller, a first DC manager, a second DC manager, a wireless charging module, a BMS-managed battery pack, a third DC manager, and an LCD display module. The bidirectional inverter module is configured with an AC input terminal and an AC output terminal. The AC input terminal is connected to a first potential element, and the AC output terminal is connected to a second potential element. The first potential element and the second potential element are respectively connected to the potential trigger terminal of the MCU manager. The potential trigger terminal is at 0 potential by default. When the first real-time potential of the first potential element is greater than the potential trigger terminal and the second real-time potential of the second potential element, an input signal is generated at the AC input terminal. When a potential signal exists at the potential trigger terminal, the second potential element generates a response potential, and when the first real-time potential of the first potential element is 0, an output signal is generated at the AC output terminal. The response potential is not unique. The first DC manager connects to and controls the solar energy input terminal; The second DC management connection is connected to the DC vehicle charger output terminal; The third DC manager connects to the USB / Type module; The first DC manager is used to receive solar signals and perform a first charging path switch to initiate the charging mode; wherein, When performing the first charging path switch, the BMS manages the battery pack to connect to the solar input port through the first DC manager; The DC power input at the solar panel is less than 100W; The second DC manager is used to receive the DC car charger output signal and perform the first power supply path switch to start the car charger power supply mode; The wireless charging module is used to receive contact signals from external devices, perform a second power supply path switch, and start the wireless power supply mode. The MCU management controller is also connected to the ambient light module. When it receives the ambient light start signal, it performs a third power supply path switch and starts the ambient light power supply mode. The third DC manager receives the output signal from the USB / Type module, performs the fourth power supply path switching, and starts the PD / PPS power supply mode. The MCU management controller is also connected to the speaker module. When it receives the speaker start signal, it performs the fifth power supply path switch and starts the speaker power supply mode.

2. The multifunctional bidirectional portable energy storage power supply as described in claim 1, characterized in that, The bidirectional inverter module is configured with a rectification mode and an inverter mode; wherein... When the bidirectional inverter module receives an input signal from the AC input terminal, it executes rectification mode and charges the BMS-managed battery pack using mains power; whereby... The AC input is less than 400W; When the bidirectional inverter module receives the output signal from the AC output terminal, it executes the inverter mode and uses the BMS to manage the battery pack to supply power to external devices.

3. The multifunctional bidirectional portable energy storage power supply as described in claim 1, characterized in that, The LCD display module is used to display the real-time status of the bidirectional inverter module, the first DC manager, the second DC manager, the wireless charging module, the BMS-managed battery pack, and the third DC manager; wherein, The real-time status of the module is detected and obtained by the MCU management controller.

4. The multifunctional bidirectional portable energy storage power supply as described in claim 1, characterized in that, The outer shell includes a central hub, a front shell embedded in the front part of the outer shell, and a rear shell embedded in the rear part of the outer shell.

5. A multifunctional bidirectional portable energy storage power supply as described in claim 1, characterized in that, The LCD display module is connected to the MCU management controller via a Schmitt trigger, and displays the real-time status of the bidirectional inverter module, the first DC manager, the second DC manager, the wireless charging module, the BMS-managed battery pack, and the third DC manager as square wave signals based on the rising and falling edges of time, respectively, generating a circuit status image. The circuit status image is compared frame by frame within a fixed period to determine whether there are state differences at the time granularity. When state differences exist, the corresponding PWM signal is output. The PWM signal is received by the MCU management controller and controls the output of the BMS-managed battery pack to stabilize.

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