Anti-disassembly method and system for energy storage equipment and energy storage equipment

Abstract

The invention discloses an anti-disassembly method and system for energy storage equipment and the energy storage equipment, and the anti-disassembly method for the energy storage equipment is applied to the anti-disassembly system for the energy storage equipment, and comprises the steps: obtaining a first photosensitive signal outputted by a first photosensitive sensing module; the first photosensitive signal comprises a trigger level and a non-trigger level; judging whether an energy storage shell of the energy storage equipment is disassembled or not according to the first photosensitive signal; if the first photosensitive signal is a trigger level, it is judged that the energy storage device is dismounted, dismounting warning information is recorded and output to the display module, the display module displays the dismounting warning information, the dismounting warning information is sent to the cloud server through the network unit, and the alarm module is further controlled to perform physical alarm and interrupt connection between the energy storage body and the peripheral circuit. According to the technical scheme, battery damage, theft or abnormal performance caused by illegal disassembly can be effectively avoided, and the safety and reliability of the energy storage equipment are improved.

Description

Technical Field

[0001] This invention relates to the field of portable energy storage device technology, and in particular to a method, system and energy storage device for preventing disassembly. Background Technology

[0002] With the rapid development of portable energy storage technology, portable mobile energy storage devices have been widely used in various scenarios, including personal life and business operations. However, equipment safety issues have also become increasingly prominent. Illegal disassembly can not only damage internal circuits and steal core battery components, but may also cause serious safety accidents such as electric shock to users due to exposed high-voltage circuits, making safety protection increasingly important.

[0003] Current mainstream anti-disassembly solutions have significant drawbacks: Traditional mechanical protection methods, such as anti-theft screws or physical locks, can provide basic protection, but they are easily damaged when subjected to violent disassembly with specialized tools. Furthermore, the complex lock structure increases manufacturing costs and causes inconvenience for equipment assembly and daily maintenance. On the other hand, electronic detection solutions that rely on accelerometers or pressure sensors are difficult to withstand interference from complex environments. When the equipment is subjected to bumps, collisions, or accidental drops during transportation, the sensors are prone to misinterpreting the disassembly behavior, leading to false triggering of the protection mechanism. This not only affects the normal use of the equipment but also reduces the accuracy and reliability of the anti-disassembly judgment, making it difficult to meet the precise protection requirements in practical applications. Summary of the Invention

[0004] This invention provides a method, system, and energy storage device for preventing disassembly, which can effectively prevent battery damage, theft, or performance abnormalities caused by illegal disassembly, thereby improving the safety and reliability of the energy storage device.

[0005] According to a first aspect of the present invention, a method for preventing the disassembly of an energy storage device is provided, applied to an anti-disassembly system for an energy storage device; the energy storage device includes an energy storage body, an energy storage shell, and peripheral circuits electrically connected to the energy storage body; the anti-disassembly system includes a first photosensitive sensing module, a control module, an alarm module, and a display module disposed within the energy storage shell; the control module is electrically connected to the first photosensitive sensing module, the alarm module, and the display module respectively; the display module includes a network unit;

[0006] The anti-disassembly method includes:

[0007] Acquire a first photosensitive signal output by the first photosensitive sensing module; the first photosensitive signal includes a trigger level and a non-trigger level.

[0008] Based on the first photosensitive signal, it is determined whether the energy storage casing of the energy storage device has been disassembled;

[0009] If the first photosensitive signal is at the trigger level, it is determined that the energy storage device has been disassembled. The disassembly warning information is recorded and output to the display module, so that the display module displays the disassembly warning information, sends the disassembly warning information to the cloud server through the network unit, and also controls the alarm module to perform a physical alarm and interrupt the connection between the energy storage body and the peripheral circuit.

[0010] Optionally, if the first photosensitive signal is at the trigger level, then determining that the energy storage device has been disassembled includes:

[0011] If the first photosensitive signal is at the trigger level, then record and determine whether the duration of the first photosensitive signal being at the trigger level is greater than or equal to the first preset duration;

[0012] If the duration of the first photosensitive signal at the trigger level is greater than or equal to the first preset duration, it is determined that the energy storage device has been disassembled.

[0013] Optionally, the anti-disassembly system includes a plurality of first photosensitive sensing modules disposed within the energy storage housing; all of the plurality of first photosensitive sensing modules are electrically connected to the control module;

[0014] If the first photosensitive signal is at the trigger level, then it is determined that the energy storage device has been disassembled, including:

[0015] If multiple first photosensitive signals are at the trigger level, it is determined that the energy storage device has been dismantled.

[0016] Optionally, acquiring the first photosensitive signal output by the first photosensitive sensing module includes:

[0017] Within the second preset time period, the first photosensitive signal output by the first photosensitive sensing module is acquired and recorded once at each unit time interval to form a sliding window signal group;

[0018] Determining whether the energy storage casing of the energy storage device has been disassembled based on the first photosensitive signal includes:

[0019] Obtain the median value of the sliding window signal group, and determine whether the energy storage shell of the energy storage device has been disassembled based on the median value of the sliding window signal group;

[0020] If the median value of the sliding window signal group is the trigger level, then it is determined that the energy storage device has been disassembled.

[0021] Optionally, the first photosensitive sensing module includes a first photoresistor, a first voltage divider resistor, and a first comparator; a first terminal of the first photoresistor is electrically connected to a first photosensitive power supply terminal; a second terminal of the first photoresistor and a first terminal of the first voltage divider resistor are electrically connected to a first input terminal of the first comparator; a second terminal of the first voltage divider resistor is grounded; and the output terminal of the first comparator is electrically connected to the control module.

[0022] Before acquiring the first photosensitive signal output by the first photosensitive sensing module, the process includes:

[0023] The maximum resistance change value of the first photoresistor under a first preset brightness environment and the first trigger threshold of the first input terminal when the first comparator outputs the trigger level are obtained;

[0024] Based on the first trigger threshold, the resistance value of the first voltage divider resistor, the maximum resistance change value, and the first preset ratio, the voltage value of the first photosensitive power supply terminal is determined and set so that when the resistance change value of the first photosensitive resistor reaches the maximum resistance change value multiplied by the first preset ratio, the voltage value of the first input terminal can reach the first trigger threshold, and the first comparator can output the trigger level.

[0025] Optionally, the first photosensitive sensing module includes a first photoresistor, a first voltage divider resistor, and a first comparator; a first terminal of the first photoresistor is electrically connected to a first photosensitive power supply terminal; a second terminal of the first photoresistor and a first terminal of the first voltage divider resistor are electrically connected to a first input terminal of the first comparator; a second terminal of the first voltage divider resistor is grounded; and the output terminal of the first comparator is electrically connected to the control module.

[0026] The anti-tampering system further includes a second photosensitive sensing module disposed within the energy storage housing; the second photosensitive sensing module includes a second photoresistor, a second voltage divider resistor, and a second comparator; the second terminal of the second photoresistor is electrically connected to a second photosensitive power supply terminal; the second terminal of the second photoresistor and the first terminal of the second voltage divider resistor are electrically connected to the first input terminal of the second comparator; the second terminal of the second voltage divider resistor is grounded; the output terminal of the second comparator is electrically connected to the control module; wherein, the parameters of the second photoresistor are the same as those of the first photoresistor, the parameters of the second comparator are the same as those of the first comparator, and the second trigger threshold of the first input terminal when the second comparator outputs the trigger level is the same as the first trigger threshold of the first input terminal when the first comparator outputs the trigger level;

[0027] The energy storage housing also includes a hollow structure; the hollow structure is used to expose the second photoresistor;

[0028] Before acquiring the first photosensitive signal output by the first photosensitive sensing module, the process includes:

[0029] The sensing voltage value at the second photosensitive power supply terminal is obtained when the second photosensitive sensing module is in the critical state of outputting the trigger level;

[0030] Based on the sensed voltage value, the voltage value of the first photosensitive power supply terminal is determined and set so that when the first photoresistor is exposed to the current environment, the first comparator can output the trigger level.

[0031] Optionally, the first input terminal of the first comparator is the inverting input terminal of the first comparator, and the first input terminal of the second comparator is the inverting input terminal of the second comparator;

[0032] Determining and setting the voltage value of the first photosensitive power supply terminal based on the sensed voltage value includes setting the voltage value of the first photosensitive power supply terminal to be greater than the sensed voltage value.

[0033] According to a second aspect of the present invention, an anti-tampering system for an energy storage device is provided. The energy storage device includes an energy storage body, an energy storage shell, and peripheral circuits electrically connected to the energy storage body. The anti-tampering system includes a first photosensitive sensing module, a control module, an alarm module, and a display module disposed within the energy storage shell. The control module is electrically connected to the first photosensitive sensing module, the alarm module, and the display module, respectively. The display module includes a network unit.

[0034] The control module is used to execute the anti-disassembly method for the energy storage device described in any of the above-mentioned embodiments.

[0035] Optionally, the anti-disassembly system includes a plurality of first photosensitive sensing modules disposed within the energy storage housing; all of the plurality of first photosensitive sensing modules are electrically connected to the control module.

[0036] Optionally, the first photosensitive sensing module includes a first photoresistor, a first voltage divider resistor, and a first comparator; the first end of the first photoresistor is electrically connected to a first photosensitive power supply terminal; the second end of the first photoresistor and the first end of the first voltage divider resistor are electrically connected to the first input terminal of the first comparator; the second end of the first voltage divider resistor is grounded; and the output terminal of the first comparator is electrically connected to the control module.

[0037] Optionally, the anti-disassembly system further includes a second photosensitive sensing module disposed within the energy storage housing;

[0038] The second photosensitive sensing module includes a second photoresistor, a second voltage divider resistor, and a second comparator; the first terminal of the second photoresistor is electrically connected to the second photosensitive power supply terminal; the second terminal of the second photoresistor and the first terminal of the second voltage divider resistor are electrically connected to the first input terminal of the second comparator; the second terminal of the second voltage divider resistor is grounded; and the output terminal of the second comparator is electrically connected to the control module.

[0039] Wherein, the parameters of the second photoresistor are the same as those of the first photoresistor, the parameters of the second comparator are the same as those of the first comparator, and the second trigger threshold of the first input terminal when the second comparator outputs the trigger level is the same as the first trigger threshold of the first input terminal when the first comparator outputs the trigger level;

[0040] The energy storage housing also includes a perforated structure; the perforated structure is used to expose the second photoresistor.

[0041] According to a third aspect of the present invention, an energy storage device is provided, the energy storage device including an energy storage body, an energy storage shell, and peripheral circuits electrically connected to the energy storage body; an anti-disassembly system for the energy storage device as described in any one of the above claims is provided inside the energy storage shell.

[0042] Optionally, the anti-disassembly system further includes a second photosensitive sensing module disposed within the energy storage housing;

[0043] The second photosensitive sensing module includes a second photoresistor, a second voltage divider resistor, and a second comparator; the second terminal of the second photoresistor is electrically connected to a second photosensitive power supply terminal; the second terminal of the second photoresistor and the first terminal of the second voltage divider resistor are electrically connected to the first input terminal of the second comparator; the second terminal of the second voltage divider resistor is grounded; and the output terminal of the second comparator is electrically connected to the control module.

[0044] The second photoresistor has the same parameters as the first photoresistor in the first photosensitive sensing module, the second comparator has the same parameters as the first comparator in the first photosensitive sensing module, and the second trigger threshold of the first input terminal when the second comparator outputs the trigger level is the same as the first trigger threshold of the first input terminal when the first comparator outputs the trigger level.

[0045] The energy storage housing also includes a hollow structure; the hollow structure is used to expose the second photoresistor;

[0046] The energy storage shell also includes a sidewall structure connected to the hollow structure.

[0047] The technical solution of this invention determines whether the energy storage device's outer casing has been disassembled by detecting the level of the first photosensitive signal output by the first photosensitive sensing module. If the first photosensitive signal is at a trigger level, it is determined that the casing has been disassembled, automatically triggering a multi-level response mechanism including power-off, alarm, and data reporting, thus achieving complete protection against unauthorized disassembly. This solution effectively avoids battery damage, theft, or performance abnormalities caused by unauthorized disassembly, eliminating safety risks while ensuring user safety. It also has advantages such as concealed deployment, strong anti-interference capabilities, and low cost, and can serve as a warranty reference during maintenance and after-sales service, improving the safety and reliability of energy storage devices. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the anti-disassembly system for the energy storage device provided in this embodiment of the invention. Figure 1 ;

[0049] Figure 2 This is a schematic diagram of the anti-disassembly system for the energy storage device provided in this embodiment of the invention. Figure 2 ;

[0050] Figure 3 This is a schematic diagram of the structure of the BMS circuit board proposed in an embodiment of the present invention;

[0051] Figure 4 This is a schematic diagram of the installation position of the BMS circuit board proposed in an embodiment of the present invention;

[0052] Figure 5 This is a schematic diagram of the anti-disassembly system for the energy storage device proposed in this embodiment of the invention. Figure 3 ;

[0053] Figure 6 This is a schematic diagram of the anti-disassembly system for the energy storage device proposed in this embodiment of the invention. Figure 4 ;

[0054] Figure 7 This is the anti-disassembly method flow for energy storage devices provided in the embodiments of the present invention. Figure 1 ;

[0055] Figure 8 This is the anti-disassembly method flow for energy storage devices provided in the embodiments of the present invention. Figure 2 ;

[0056] Figure 9 This is the anti-disassembly method flow for energy storage devices provided in the embodiments of the present invention. Figure 3 ;

[0057] Figure 10 This is the anti-disassembly method flow for energy storage devices provided in the embodiments of the present invention. Figure 4 ;

[0058] Figure 11 This is the anti-disassembly method flow for energy storage devices provided in the embodiments of the present invention. Figure 5 . Detailed Implementation

[0059] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0060] The terminology used in the embodiments of this invention is for the purpose of describing specific embodiments only and is not intended to limit the invention. It should be noted that directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this invention are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this invention. Furthermore, in the context, it should be understood that when referring to an element being formed "on" or "below" another element, it can be formed not only directly on or below the other element, but also indirectly on or below it through intermediate elements. The terms "first," "second," etc., are used for descriptive purposes only and do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0061] The term "comprising" and its variations as used in this invention are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment".

[0062] It should be noted that the concepts of "first" and "second" mentioned in this invention are only used to distinguish the corresponding contents and are not used to limit the order or interdependence.

[0063] It should be noted that the terms "a" and "a plurality of" used in this invention are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0064] Figure 1 This is a schematic diagram of the anti-disassembly system for the energy storage device provided in this embodiment of the invention. Figure 1 ,refer to Figure 1 Energy storage equipment includes the energy storage unit ( Figure 1(Not shown in the diagram) Energy storage housing 02 and peripheral circuit 01 electrically connected to the energy storage body; the anti-tampering system includes a first photosensitive sensing module 10, a control module 20, an alarm module 30 and a display module 40 disposed inside the energy storage housing 02; the control module 20 is electrically connected to the first photosensitive sensing module 10, the alarm module 30 and the display module 40 respectively; the display module 40 includes a network unit.

[0065] The energy storage unit is the core energy storage component of the device, containing energy storage units such as energy storage batteries, and is the primary object protected by this anti-tampering system. The energy storage shell 02 is the external protective structure of the device. When the energy storage shell 02 is not disassembled, it can block external light, creating a light-shielding environment in at least a portion of its interior, thus placing the first photosensitive sensing module 10 in this environment. When the energy storage shell 02 is forcibly disassembled, external light will enter the interior and can be transmitted to the first photosensitive sensing module 10. The peripheral circuit 01 electrically connected to the energy storage battery refers to various functional circuits in the device that are electrically connected to the energy storage battery, including but not limited to charging circuits, discharging circuits, and protection circuits. In an optional embodiment, the energy storage device includes a Battery Management System (BMS) circuit board, and the peripheral circuit 01 can be mounted on the BMS circuit board.

[0066] The first photosensitive sensor module 10 can sense changes in light intensity, convert these changes into electrical signals, and transmit the output signals to the control module 20. The control module 20 receives the signals output by the first photosensitive sensor module 10 and determines whether the energy storage housing 02 has been disassembled, controlling the alarm module 30 and the display module 40 accordingly. The control module 20 can integrate a processor, memory, input interface, output interface, and other structures, including but not limited to microcontroller units (MCUs) and microprocessor units (MPUs). In an optional embodiment, the energy storage device includes a BMS circuit board, and the first photosensitive sensor module 10 and the control module 20 can be mounted on the BMS circuit board.

[0067] For example, in the anti-tampering system, the first photosensitive sensor module 10, acting as a detection source for tampering, converts changes in light intensity into electrical signals, providing the control module 20 with signals to determine tampering behavior. The core of the control module 20 can be a microcontroller unit (MCU). After receiving the signal output from the first photosensitive sensor module 10, the control module 20 can determine whether the energy storage casing 02 has been tampered with. If it determines that the energy storage casing 02 has been tampered with, it triggers the alarm module 30 and the display module 40 to issue a tampering alarm and interrupts the connection between the energy storage unit and the peripheral circuit 01. This effectively prevents battery damage, theft, or performance abnormalities caused by illegal tampering, eliminating safety risks while protecting the user's life.

[0068] The alarm module 30 can use audible alarms, such as buzzers or voice alerts, or indicator light alarms, such as flashing lights. This embodiment of the invention does not limit the type of alarm. The display module 40 includes a network unit, controlled by the control module 20, and can be located inside or outside the energy storage housing 02. This embodiment of the invention does not limit the type of alarm.

[0069] In an optional embodiment, the display module 40 is disposed within the energy storage housing 02, and the energy storage housing 02 may include a display window. Figure 1 (Not shown in the image) The display window exposes the display screen of the display module 40. The display screen can intuitively display disassembly warning information, allowing users or maintenance personnel to directly know the status of the equipment being disassembled. In addition, the display module 40 can send the disassembly warning information to the cloud server through the network unit, which can realize remote alarm and recording of alarm data, providing a basis for after-sales maintenance and traceability.

[0070] In another optional implementation, the display module 40 and / or the control module 20 include a serial port interface, which can be used to connect to a computer. When the computer is connected to the display module 40 and / or the control module 20, dedicated software can be used to clear the alarm information records of the control module 20 and the disassembly warning information displayed by the display module 40, so as to avoid mistakenly judging the legitimate disassembly by the user or maintenance personnel as illegal disassembly.

[0071] Based on the above embodiments, the anti-disassembly system may further include a power supply switch disposed between the energy storage body and the peripheral circuit 01. Figure 1 (Not shown in the image), the control terminal of the power supply switch is electrically connected to the control module 20, and the control module 20 can control the connection / interruption between the energy storage body and the peripheral circuit 01 through the power supply switch.

[0072] Optional, Figure 2 This is a schematic diagram of the anti-disassembly system for the energy storage device provided in this embodiment of the invention. Figure 2 ,refer to Figure 2The anti-disassembly system includes multiple first photosensitive sensing modules 10 disposed within the energy storage housing 02; all multiple first photosensitive sensing modules 10 are electrically connected to the control module 20.

[0073] For example, Figure 3 This is a schematic diagram of the BMS circuit board structure proposed in an embodiment of the present invention. Figure 4 This is a schematic diagram of the mounting position of the BMS circuit board according to an embodiment of the present invention, for reference. Figures 2 to 4 The anti-tampering system includes multiple first photosensitive sensing modules 10 disposed within the energy storage housing 02. Each of the multiple first photosensitive sensing modules 10 is electrically connected to the control module 20. All of the multiple first photosensitive sensing modules 10 can be integrated onto the BMS circuit board 03. The multiple first photosensitive sensing modules 10 can be located at any position on the BMS protection board 03. By using multiple first photosensitive sensing modules 10 for redundancy, the accuracy of the system's anti-tampering judgment can be improved. Furthermore, the installation position of the first photosensitive sensing modules 10 can be flexibly changed according to the installation position of the BMS circuit board 03. The BMS circuit board 03 can be located above, below, in front of, behind, or in the middle of the energy storage body, etc. This embodiment of the invention does not limit this.

[0074] Optional, Figure 5 This is a schematic diagram of the anti-disassembly system for the energy storage device proposed in this embodiment of the invention. Figure 3 ,refer to Figure 5 The first photosensitive sensing module 10 includes a first photoresistor R1, a first voltage divider resistor R2, and a first comparator C1; the first end of the first photoresistor R1 is electrically connected to the first photosensitive power supply terminal VCC1; the second end of the first photoresistor R1 and the first end of the first voltage divider resistor R2 are electrically connected to the first input terminal of the first comparator C1; the second end of the first voltage divider resistor R2 is grounded; and the output terminal of the first comparator C1 is electrically connected to the control module 20.

[0075] The resistance of the first photoresistor R1 varies with light intensity. When the device is not disassembled and is in a completely dark environment, the first photoresistor R1 is at its maximum resistance value. When the device is disassembled, the resistance of the first photoresistor R1 decreases under light, while the resistance of the first voltage divider resistor R2 remains constant, causing a change in the voltage at the first input terminal of the first comparator C1. The first comparator C1 compares the voltage signal input at its first input terminal with a reference signal, converts the comparison result into a digital signal, and outputs it to the control module 20.

[0076] For example, the first voltage divider resistor R2 and the first photoresistor R1 form a voltage divider circuit, converting light intensity changes into a voltage signal to provide an input signal to the first input terminal of the first comparator C1. The first photosensitive sensing module 10 also includes a third resistor R3 and a fourth resistor R4. The first end of the third resistor R3 is electrically connected to the second power supply terminal VCC2, and the second end of the third resistor R3 is electrically connected to the first end of the fourth resistor R4. The second end of the fourth resistor R4 is electrically connected to the second input terminal of the first comparator C1, and the second end of the fourth resistor R4 is grounded. The third resistor R3 and the fourth resistor R4 form an anti-interference loop to provide a reference signal to the second input terminal of the first comparator C1. The positive power supply terminal of the first comparator C1 is electrically connected to the third power supply terminal VCC3, and the negative power supply terminal is grounded. A fifth resistor R5 is also provided between the positive power supply terminal and the output terminal of the first comparator C1. The fifth resistor R5 protects the first comparator C1 by current limiting, so that the core components will not be damaged in case of abnormality, and at the same time helps to stabilize the output level. The output terminal of the first comparator C1 is electrically connected to the control module 20.

[0077] In an optional implementation, the first input terminal of the first comparator C1 is used as the inverting input terminal, and the second input terminal is used as the non-inverting input terminal. When the energy storage housing 02 is not disassembled, the first photoresistor R1 is at its maximum resistance value, the voltage at the first input terminal of the first comparator C1 is less than the voltage at the second input terminal, and the first comparator outputs a high level. When the energy storage housing 02 is disassembled, the resistance value of the first photoresistor R1 decreases, the voltage at the first input terminal of the first comparator C1 is greater than or equal to the voltage at the second input terminal, and the first comparator C1 outputs a low level. By transmitting the level signal output by the first comparator C1 to the control module 20, the control module 20 can determine whether the energy storage housing 02 has been disassembled based on the level signal output by the first comparator C1, and then trigger subsequent alarm, power-off and other protection actions after determining that the energy storage housing 02 has been disassembled.

[0078] Optional, Figure 6 This is a schematic diagram of the anti-disassembly system for the energy storage device proposed in this embodiment of the invention. Figure 4 ,refer to Figure 6The anti-tampering system also includes a second photosensitive sensing module 50 disposed within the energy storage housing 02; the second photosensitive sensing module 50 includes a second photoresistor R6, a second voltage divider resistor R7, and a second comparator C2; the first end of the second photoresistor R6 is electrically connected to the second photosensitive power supply terminal VCC4; the second end of the second photoresistor R6 and the first end of the second voltage divider resistor R7 are electrically connected to the first input terminal of the second comparator C2; the second end of the second voltage divider resistor R7 is grounded; the output terminal of the second comparator C2 is electrically connected to the control module 20; wherein, the parameters of the second photoresistor R6 are the same as those of the first photoresistor R1, the parameters of the second comparator C2 are the same as those of the first comparator C1, and the second trigger threshold of the first input terminal when the second comparator C2 outputs a trigger level is the same as the first trigger threshold of the first input terminal when the first comparator C1 outputs a trigger level. The energy storage housing 02 also includes a hollow structure ( Figure 6 (Not shown in the image); the cutout structure is used to expose the second photoresistor R6.

[0079] In this context, the second photoresistor R6 and the first photoresistor R1 have the same parameters, meaning their resistance values ​​are the same under the same brightness conditions. Similarly, the second comparator C2 and the first comparator C1 have the same parameters, meaning they can output the same signal when the voltage values ​​at their first input terminals are the same. When the second comparator C2 outputs a trigger level, the second trigger threshold at its first input terminal is the voltage value at the first input terminal when the output signal of the second comparator C2 switches from a non-trigger level to a trigger level. In one embodiment, the second trigger threshold is the voltage value of the reference signal received by the second comparator C2. Similarly, when the first comparator C1 outputs a trigger level, the first trigger threshold at its first input terminal is the voltage value at the first input terminal when the output signal of the second comparator C2 switches from a non-trigger level to a trigger level. In one embodiment, the first trigger threshold is the voltage value of the reference signal received by the first comparator C1. Furthermore, the resistance values ​​of the first voltage divider resistor R2 and the second voltage divider resistor R7 can also be the same.

[0080] Understandably, since energy storage devices typically have air vents on both sides, even if the outer casing 02 is not disassembled, strong ambient light may allow light to leak into the outer energy storage casing through the vents, causing a change in the resistance of the first photoresistor R1. This could lead the control module 20 to mistakenly interpret the energy storage casing 02 as being disassembled, thus triggering an alarm and interfering with the normal operation of the anti-disassembly system. Furthermore, even without air vents, light may leak through the installation gaps of the energy storage casing 02, causing the control module 20 to mistakenly interpret the energy storage casing 02 as being disassembled, also interfering with the normal operation of the anti-disassembly system. Therefore, in this embodiment of the invention, a second photosensitive sensing module 50 is installed inside the energy storage casing 02. The hollow structure of the energy storage casing 02 exposes the second photoresistor R6. The second photoresistor R6, exposed to normal light, can sense ambient light. When the ambient light is strong, the resistance of the second photoresistor R6 decreases. The second comparator C2 compares the voltage signal at the first input terminal with the reference signal, converts the comparison result into a digital signal, and outputs it to the control module 20.

[0081] For example, the second voltage divider resistor R7 and the second photoresistor R6 form a voltage divider circuit, converting light intensity changes into a voltage signal to provide an input signal to the first input terminal of the second comparator C2. The second photosensitive sensing module 50 also includes an eighth resistor R8 and a ninth resistor R9. The first end of the eighth resistor R8 is electrically connected to the fifth power supply terminal VCC5, and the second end of the eighth resistor R8 is electrically connected to the first end of the ninth resistor R9. The second end of the ninth resistor R9 is electrically connected to the second input terminal of the second comparator C2, and simultaneously, the second end of the ninth resistor R9 is grounded. The eighth resistor R8 and the ninth resistor R9 form an anti-interference loop, providing a reference signal to the second input terminal of the second comparator C2. The positive power supply terminal of the second comparator C2 is electrically connected to the sixth power supply terminal VCC6, and the negative power supply terminal is grounded. A tenth resistor R10 is also provided between the positive power supply terminal and the output terminal of the second comparator C2. The tenth resistor R10 protects the second comparator C2 by current limiting, ensuring that the core components are not damaged in case of abnormalities, and also helps stabilize the output level.

[0082] For example, continue to refer to Figure 6The control module 20 can adjust the voltage value of the second photosensitive power supply terminal VCC4 to make the resistance value of the second photoresistor R6 be in a critical state that causes the output level of the second comparator C2 to change. The control module 20 can dynamically adjust the voltage value of the first photosensitive power supply terminal VCC1 according to the voltage value of the second photosensitive power supply terminal VCC4, so that the first comparator C1 of the first photosensitive sensing module 10 can output a non-trigger level when the energy storage housing 02 is not removed, and output a trigger level when the energy storage housing 02 is removed. When the ambient light is strong, the resistance of the second photoresistor R6 is small, and the voltage of the second photoresistor power supply terminal VCC4 is small. This allows the resistance of the second photoresistor R6 to be in a critical state that causes the output level of the second comparator C2 to change (the voltage signal at the first input terminal is close to the reference signal). The voltage of the first photoresistor power supply terminal VCC1 can also be set to a small value (but greater than the voltage of the second photoresistor power supply terminal VCC4, for example, 1.1 to 1.3 times the voltage of the second photoresistor power supply terminal VCC4). Thus, even when there is some light in the shaded environment due to strong ambient light, when the resistance of the first photoresistor R1 decreases, the voltage signal at the first output terminal of the first comparator C1 is still less than the reference signal. If the energy storage shell O2 is removed, stronger light will shine on the first photoresistor R1, that is, when the resistance of the first photoresistor R1 decreases even further, the first comparator C1 can output a low-level trigger level. This compensation mechanism adaptively increases the system's trigger threshold through real-time monitoring of ambient light intensity, avoiding misjudgments caused by a small amount of light leakage due to strong ambient light, and ensuring that the protection action is triggered only when the energy storage shell 02 is actually disassembled.

[0083] Figure 7 The anti-disassembly method flow for energy storage devices provided in this embodiment of the invention Figure 1 The anti-tampering method for energy storage devices is applied to the anti-tampering system of energy storage devices; the energy storage device includes an energy storage body, an energy storage shell 02, and peripheral circuits 01 electrically connected to the energy storage body; the anti-tampering system includes a first photosensitive sensing module 10, a control module 20, an alarm module 30, and a display module 40 disposed on the energy storage shell 02; the control module 20 is electrically connected to the first photosensitive sensing module 10, the alarm module 30, and the display module 40 respectively; the display module 40 includes a network unit ( Figure 7 (Not shown in the image).

[0084] refer to Figure 7 Anti-disassembly methods include:

[0085] S110. Obtain the first photosensitive signal output by the first photosensitive sensing module; the first photosensitive signal includes a trigger level and a non-trigger level.

[0086] This step obtains the first photosensitive signal output by the first photosensitive sensing module 10. The first photosensitive signal includes a trigger level and a non-trigger level. The trigger level can be a low level or a high level. This embodiment of the invention does not limit this. In an optional embodiment, the trigger level can be a low level and the non-trigger level can be a high level.

[0087] S120. Based on the first photosensitive signal, determine whether the energy storage casing of the energy storage device has been disassembled.

[0088] This step analyzes the voltage level based on the first photosensitive signal to determine whether the energy storage device's outer casing has been disassembled, and decides whether to initiate subsequent protection actions.

[0089] S130. If the first photosensitive signal is at the trigger level, it is determined that the energy storage device has been disassembled. The disassembly warning information is recorded and output to the display module, so that the display module displays the disassembly warning information. The disassembly warning information is sent to the cloud server through the network unit. The alarm module is also controlled to perform a physical alarm and interrupt the connection between the energy storage body and the peripheral circuit.

[0090] If the first photosensitive signal is at the trigger level, it is determined that the energy storage device has been disassembled, and the full-process protection mechanism is activated. The disassembly warning information is recorded and output to the display module 40, so that the display module 40 displays the disassembly warning information, allowing users or maintenance personnel to directly know the status of the disassembled device. The disassembly warning information is sent to the cloud server through the network unit to realize the remote recording and storage of alarm data, providing a basis for after-sales maintenance and traceability. It also controls the alarm module 30 to perform a physical alarm and interrupt the connection between the energy storage body and the external circuit. The alarm method can be an audible alarm, such as a buzzer or voice warning, or an indicator light alarm, such as a flashing light. The alarm time can be 5 seconds, but this embodiment of the invention does not limit this. It reminds people around that there is illegal disassembly behavior and plays an immediate warning role. Within 10 seconds of receiving the alarm information, the connection between the battery and the external circuit is interrupted to prevent risks such as electric shock and short circuit.

[0091] The anti-disassembly method for energy storage devices proposed in this invention determines whether the energy storage device's outer casing has been disassembled by detecting the level of the first photosensitive signal output by the first photosensitive sensor module. If the first photosensitive signal is at a trigger level, it is determined that the casing has been disassembled, automatically triggering a multi-level response mechanism including power-off, alarm, and data reporting, thus achieving complete protection against unauthorized disassembly. This method effectively avoids battery damage, theft, or performance abnormalities caused by unauthorized disassembly, eliminating safety risks while ensuring user safety. It also has advantages such as concealed deployment, strong anti-interference capabilities, and low cost, and can serve as a warranty reference during maintenance and after-sales service, improving the safety and reliability of energy storage devices.

[0092] Optional, Figure 8This is the anti-disassembly method flow for energy storage devices provided in the embodiments of the present invention. Figure 2 ,refer to Figure 8 This embodiment is an optimization based on the above embodiments, such as... Figure 8 As shown, the method may include the following steps:

[0093] S210. Obtain the first photosensitive signal output by the first photosensitive sensing module; the first photosensitive signal includes a trigger level and a non-trigger level.

[0094] S220. Based on the first photosensitive signal, determine whether the energy storage casing of the energy storage device has been disassembled.

[0095] S230. If the first photosensitive signal is at the trigger level, record and determine whether the duration of the first photosensitive signal being at the trigger level is greater than or equal to the first preset duration.

[0096] This step records and determines whether the duration of the first photosensitive signal at the trigger level is greater than or equal to the first preset duration, filtering out momentary interference and preventing false triggering of the protection mechanism.

[0097] S240. If the duration of the first photosensitive signal at the trigger level is greater than or equal to the first preset duration, it is determined that the energy storage device has been disassembled. The disassembly warning information is recorded and output to the display module, so that the display module displays the disassembly warning information, sends the disassembly warning information to the cloud server through the network unit, and also controls the alarm module to perform a physical alarm and interrupts the connection between the energy storage body and the peripheral circuit.

[0098] For example, the first preset duration can be 3 seconds. When the duration of the trigger level is greater than 3 seconds, it will be determined that the energy storage device has been disassembled and subsequent protection actions will be triggered. When the duration of the trigger level is less than 3 seconds, subsequent protection actions will not be triggered, which can effectively avoid false triggering caused by momentary interference such as flashlights.

[0099] Optionally, the anti-disassembly system includes multiple first photosensitive sensing modules 10 disposed within the energy storage housing; all multiple first photosensitive sensing modules 10 are electrically connected to the control module 20; if the first photosensitive signal is at a trigger level, it is determined that the energy storage device has been disassembled, including: if multiple first photosensitive signals are at a trigger level, it is determined that the energy storage device has been disassembled.

[0100] Understandably, by installing multiple first photosensitive sensing modules 10 inside the energy storage casing, and requiring that the first photosensitive signal output by at least two or more first photosensitive sensing modules 10 be triggered simultaneously to a trigger level, the energy storage device is determined to have been disassembled. Thus, by setting multiple first photosensitive sensing modules 10 for redundancy, it is possible to avoid a single first photosensitive sensing module 10 falsely triggering a trigger level due to ambient light leakage, light source flicker, or its own malfunction. Disassembly is only determined when multiple locations are simultaneously exposed to light, reducing the false alarm rate and improving the accuracy and reliability of the anti-disassembly judgment.

[0101] Optional, Figure 9 This is the anti-disassembly method flow for energy storage devices provided in the embodiments of the present invention. Figure 3 ,refer to Figure 9 This embodiment is an optimization based on the above embodiments, such as... Figure 9 As shown, the method may include the following steps:

[0102] S310. Within the second preset time period, the first photosensitive signal output by the first photosensitive sensing module is acquired and recorded once at each unit time interval to form a sliding window signal group; the first photosensitive signal includes a trigger level and a non-trigger level.

[0103] This step involves sampling at intervals within a second preset time period to form a sliding window signal group. This collects the first photosensitive signal over a certain period, constituting the sliding window signal group. As time progresses, for each newly recorded first photosensitive signal in the sliding window signal group, the oldest recorded first photosensitive signal is deleted, maintaining the dynamic update of the sliding window signal group. In an optional implementation, the second preset time period can be 1 minute, and the interval unit can be 100 milliseconds; this embodiment of the invention does not limit this.

[0104] S320. Obtain the median value of the sliding window signal group, and determine whether the energy storage casing of the energy storage device has been disassembled based on the median value of the sliding window signal group.

[0105] This step uses the median of the sliding window signal group as the basis for judgment. That is, in the sliding window signal group, the first photosensitive signal with the most occurrences of the level is taken as the actual output level of the first photosensitive sensing module 10 in the current state. That is, a high probability of triggering the level can be regarded as the device being disassembled, and a high probability of non-triggering the level can be regarded as the device not being disassembled.

[0106] S330. If the median value of the sliding window signal group is the trigger level, it is determined that the energy storage device has been disassembled. The disassembly warning information is recorded and output to the display module, so that the display module displays the disassembly warning information. The disassembly warning information is sent to the cloud server through the network unit. The alarm module is also controlled to perform a physical alarm and interrupt the connection between the energy storage body and the peripheral circuit.

[0107] This step is based on median judgment, ensuring that disassembly is only identified when most signals are at the trigger level over a period of time. This allows the system to respond quickly to data changes, avoids misjudgments caused by changes in ambient light, and has stronger anti-interference capabilities.

[0108] Optionally, the first photosensitive sensing module 10 includes a first photoresistor R1, a first voltage divider resistor R2, and a first comparator C1; the first end of the first photoresistor R1 is electrically connected to the first photosensitive power supply terminal VCC1; the second end of the first photoresistor R1 and the first end of the first voltage divider resistor R2 are electrically connected to the first input terminal of the first comparator C1; the second end of the first voltage divider resistor R2 is grounded; and the output terminal of the first comparator C1 is electrically connected to the control module 20. Figure 10 This is the anti-disassembly method flow for energy storage devices provided in the embodiments of the present invention. Figure 4 ,like Figure 10 As shown, the method may include the following steps:

[0109] S410: Obtain the maximum resistance change value of the first photoresistor under the first preset brightness environment and the first trigger threshold of the first input terminal when the first comparator outputs the trigger level.

[0110] S420. Based on the first trigger threshold, the resistance value of the first voltage divider resistor, the maximum resistance change value, and the first preset ratio, determine and set the voltage value of the first photosensitive power supply terminal so that when the resistance change value of the first photosensitive resistor reaches the maximum resistance change value multiplied by the first preset ratio, the voltage value of the first input terminal can reach the first trigger threshold, and the first comparator can output the trigger level.

[0111] S430: Obtain the first photosensitive signal output by the first photosensitive sensing module; the first photosensitive signal includes a trigger level and a non-trigger level.

[0112] S440. Based on the first photosensitive signal, determine whether the energy storage casing of the energy storage device has been disassembled.

[0113] S450. If the first photosensitive signal is at the trigger level, it is determined that the energy storage device has been disassembled. The disassembly warning information is recorded and output to the display module, so that the display module displays the disassembly warning information. The disassembly warning information is sent to the cloud server through the network unit. The alarm module is also controlled to perform a physical alarm and interrupt the connection between the energy storage body and the peripheral circuit.

[0114] The first preset brightness environment can be set based on experience or detection requirements. If the detection sensitivity requirement is high, it can be set to a darker environment (but still with some brightness); if the detection sensitivity requirement is low, it can be set to a brighter environment. The first trigger threshold at the first input terminal when the first comparator C1 outputs a trigger level refers to the voltage value at the first input terminal when the first comparator C1 changes from an output non-trigger level to an output trigger level. The first trigger threshold can be obtained through a voltage detection circuit or a reference signal at the second input terminal. This embodiment of the invention does not limit this.

[0115] Specifically, the voltage change at the input of the first comparator C1 is related to the resistance change of the first photoresistor R1 and also to the voltage at the first photosensitive power supply VCC1. By adjusting the voltage at the first photosensitive power supply VCC1, when the change in the first photoresistor R1 (the change in resistance as light intensity increases) reaches the maximum resistance change of the first photoresistor R1 under the first preset brightness environment multiplied by the first preset ratio, the voltage at the first input of the first comparator C1 can reach the first trigger threshold, and the first comparator C1 can output a trigger level. Thus, the trigger condition for the first photosensitive sensing module 10 to output a trigger level is the maximum resistance change of the first photoresistor R1 under the first preset brightness environment multiplied by the first preset ratio, and the trigger condition can be set according to the environment or requirements.

[0116] In one optional embodiment, the first preset ratio can be 0.8. In other optional embodiments, it can be set according to experience or detection requirements, and the present invention does not limit this. When the resistance change of the first photoresistor R1 reaches the maximum resistance change multiplied by the first preset ratio, that is, when the resistance change of the first photoresistor R1 is greater than or equal to Vmax × 0.8, the first comparator C1 can output a trigger level, determining that the device has been disassembled. This step can ensure that the triggering condition matches the actual brightness change requirement, avoiding false triggering or low detection sensitivity, which would prevent effective identification of illegal disassembly.

[0117] Optionally, the first photosensitive sensing module 10 includes a first photoresistor R1, a first voltage divider resistor R2, and a first comparator C1; the first end of the first photoresistor R1 is electrically connected to the first photosensitive power supply terminal VCC1; the second end of the first photoresistor R1 and the first end of the first voltage divider resistor R2 are electrically connected to the first input terminal of the first comparator C1; the second end of the first voltage divider resistor R2 is grounded; and the output terminal of the first comparator C1 is electrically connected to the control module 20.

[0118] The anti-tampering system also includes a second photosensitive sensing module 50 disposed within the energy storage housing 02; the second photosensitive sensing module 50 includes a second photoresistor R6, a second voltage divider resistor R7, and a second comparator C2; the second end of the second photoresistor R6 is electrically connected to the second photosensitive power supply terminal VCC4; the second end of the second photoresistor R6 and the first end of the second voltage divider resistor R7 are electrically connected to the first input terminal of the second comparator C2; the second end of the second voltage divider resistor R7 is grounded; the output terminal of the second comparator C2 is electrically connected to the control module 20; wherein, the parameters of the second photoresistor R6 are the same as those of the first photoresistor R1, the parameters of the second comparator C2 are the same as those of the first comparator C1, and the second trigger threshold of the first input terminal when the second comparator C2 outputs a trigger level is the same as the first trigger threshold of the first input terminal when the first comparator C1 outputs a trigger level; the energy storage housing 02 also includes a hollow structure (not shown in the figure); the hollow structure is used to expose the second photoresistor R6. Figure 11 This is the anti-disassembly method flow for energy storage devices provided in the embodiments of the present invention. Figure 5 ,refer to Figure 11 The method may include the following steps:

[0119] S510. Obtain the sensing voltage value at the second photosensitive power supply terminal when the second photosensitive sensing module is in the critical state of the output trigger level.

[0120] This step, by adjusting the voltage of the second photosensitive power supply terminal VCC4 and acquiring the output signal of the second comparator C2, determines the sensing voltage value of the second photosensitive power supply terminal VCC4 under critical conditions. Specifically, it determines the voltage value of the second photosensitive power supply terminal VCC4 when the output signal of the second comparator C2 switches from a non-trigger level to a trigger level, or vice versa. When the first input terminal is an inverting input terminal, the sensing voltage value during the day is lower than the sensing voltage value at night; when the first input terminal is a non-inverting input terminal, the sensing voltage value during the day is also lower than the sensing voltage value at night.

[0121] S520. Based on the sensed voltage value, determine and set the voltage value of the first photosensitive power supply terminal so that when the first photosensitive resistor is exposed to the current environment, the first comparator can output a trigger level.

[0122] This step refers to adjusting the voltage value of the first photosensitive power supply terminal VCC1 according to the sensed voltage. This allows the first comparator C1 to output a non-trigger level when the first photoresistor R1 is not exposed to the current environment (i.e., in a darker environment than the energy storage device), and to output a trigger level when the first photoresistor R1 is exposed to the current environment (i.e., in the environment where the energy storage device is located). By sensing the external environment, the voltage of the first photosensitive power supply terminal VCC1 can be adjusted in real time for compensation, improving detection sensitivity and accuracy.

[0123] S530, Obtain the first photosensitive signal output by the first photosensitive sensing module; the first photosensitive signal includes a trigger level and a non-trigger level.

[0124] S540. Based on the first photosensitive signal, determine whether the energy storage casing of the energy storage device has been disassembled.

[0125] S550: If the first photosensitive signal is at the trigger level, it is determined that the energy storage device has been disassembled. The disassembly warning information is recorded and output to the display module, so that the display module displays the disassembly warning information. The disassembly warning information is sent to the cloud server through the network unit. The alarm module is also controlled to perform a physical alarm and interrupt the connection between the energy storage body and the peripheral circuit.

[0126] Optionally, the first input terminal of the first comparator C1 is the inverting input terminal of the first comparator C1, and the first input terminal of the second comparator C2 is the inverting input terminal of the second comparator C2; the voltage value of the first photosensitive power supply terminal VCC1 is determined and set according to the sensed voltage value, including: setting the voltage value of the first photosensitive power supply terminal VCC1 to be greater than the sensed voltage value.

[0127] For example, when the voltage value of the second photosensitive power supply terminal VCC4 is the sensing voltage value, the voltage value of the first input terminal of the second comparator C2 can be the second trigger threshold of the first input terminal when the second comparator C2 outputs a trigger level. By setting the voltage value of the first photosensitive power supply terminal VCC1 to be greater than the sensing voltage value, it is possible that when the energy storage housing 02 is removed, under the same light intensity, the resistance value of the first photoresistor R1 can be equal to the resistance value of the second photoresistor R6, and the voltage value of the first input terminal of the first comparator C1 can be greater than the second trigger threshold, that is, greater than the first trigger threshold. The first comparator C1 can then output a low-level trigger level. By setting the voltage value of the first photosensitive power supply terminal VCC1 to be greater than the sensing voltage value, it is beneficial to ensure that when the first photoresistor R1 is not blocked by the energy storage housing 02, the first comparator C1 of the first photosensitive sensing module 10 can output a trigger level, thereby improving the accuracy of system detection.

[0128] This invention also provides an energy storage device, which includes an energy storage body, an energy storage shell, and peripheral circuits electrically connected to the energy storage body. The energy storage shell is provided with an anti-disassembly system for the energy storage device described above, thus having the beneficial effects of the corresponding anti-disassembly system. Similarities can be found in the description above, and will not be repeated here.

[0129] Optionally, the anti-tampering system further includes a second photosensitive sensing module 50 disposed within the energy storage housing; the second photosensitive sensing module includes a second photoresistor R6, a second voltage divider resistor R7, and a second comparator C2; the second terminal of the second photoresistor R6 is electrically connected to the second photosensitive power supply terminal VCC4; the second terminal of the second photoresistor R6 and the first terminal of the second voltage divider resistor R7 are electrically connected to the first input terminal of the second comparator C2; the second terminal of the second voltage divider resistor R7 is grounded; the output terminal of the second comparator C2 is electrically connected to the control module 20; the parameters of the second photoresistor R6 are the same as those of the first photoresistor R1 in the first photosensitive sensing module 10, and the parameters of the second comparator C2 are the same as those of the first comparator C1 in the first photosensitive sensing module 10; the second trigger threshold of the first input terminal when the second comparator C2 outputs a trigger level is the same as the first trigger threshold of the first input terminal when the first comparator C1 outputs a trigger level; the energy storage housing further includes a hollow structure; the hollow structure is used to expose the second photoresistor R6; wherein, the energy storage housing further includes a side wall structure connected to the hollow structure.

[0130] The sidewall structure can be ring-shaped, surrounding the hollow structure and set inside the outer shell to prevent ambient light from shining through the hollow structure onto the first photoresistor R1, thus preventing false triggering.

[0131] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, combinations, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A method for preventing disassembly of an energy storage device, characterized in that, An anti-tampering system for energy storage devices; the energy storage device includes an energy storage body, an energy storage shell, and peripheral circuits electrically connected to the energy storage body; the anti-tampering system includes a first photosensitive sensing module, a control module, an alarm module, and a display module disposed within the energy storage shell; the control module is electrically connected to the first photosensitive sensing module, the alarm module, and the display module respectively; the display module includes a network unit; The anti-disassembly method includes: Acquire a first photosensitive signal output by the first photosensitive sensing module; the first photosensitive signal includes a trigger level and a non-trigger level. Based on the first photosensitive signal, it is determined whether the energy storage casing of the energy storage device has been disassembled; If the first photosensitive signal is at the trigger level, it is determined that the energy storage device has been disassembled. The disassembly warning information is recorded and output to the display module, so that the display module displays the disassembly warning information, sends the disassembly warning information to the cloud server through the network unit, and also controls the alarm module to perform a physical alarm and interrupt the connection between the energy storage body and the peripheral circuit.

2. The method for preventing disassembly of an energy storage device according to claim 1, characterized in that, If the first photosensitive signal is at the trigger level, then it is determined that the energy storage device has been disassembled, including: If the first photosensitive signal is at the trigger level, then record and determine whether the duration of the first photosensitive signal being at the trigger level is greater than or equal to the first preset duration; If the duration of the first photosensitive signal at the trigger level is greater than or equal to the first preset duration, it is determined that the energy storage device has been disassembled.

3. The method for preventing disassembly of an energy storage device according to claim 1, characterized in that, The anti-disassembly system includes a plurality of first photosensitive sensing modules disposed within the energy storage housing; Multiple first photosensitive sensing modules are electrically connected to the control module; If the first photosensitive signal is at the trigger level, then it is determined that the energy storage device has been disassembled, including: If multiple first photosensitive signals are at the trigger level, it is determined that the energy storage device has been dismantled.

4. The method for preventing disassembly of an energy storage device according to claim 1, characterized in that, Acquiring the first photosensitive signal output by the first photosensitive sensing module includes: Within the second preset time period, the first photosensitive signal output by the first photosensitive sensing module is acquired and recorded once at each unit time interval to form a sliding window signal group; Determining whether the energy storage casing of the energy storage device has been disassembled based on the first photosensitive signal includes: Obtain the median value of the sliding window signal group, and determine whether the energy storage shell of the energy storage device has been disassembled based on the median value of the sliding window signal group; If the median value of the sliding window signal group is the trigger level, then it is determined that the energy storage device has been disassembled.

5. The method for preventing disassembly of an energy storage device according to claim 1, characterized in that, The first photosensitive sensing module includes a first photoresistor, a first voltage divider resistor, and a first comparator; the first end of the first photoresistor is electrically connected to a first photosensitive power supply terminal; the second end of the first photoresistor and the first end of the first voltage divider resistor are electrically connected to the first input terminal of the first comparator; the second end of the first voltage divider resistor is grounded; and the output terminal of the first comparator is electrically connected to the control module. Before acquiring the first photosensitive signal output by the first photosensitive sensing module, the process includes: The maximum resistance change value of the first photoresistor under a first preset brightness environment and the first trigger threshold of the first input terminal when the first comparator outputs the trigger level are obtained; Based on the first trigger threshold, the resistance value of the first voltage divider resistor, the maximum resistance change value, and the first preset ratio, the voltage value of the first photosensitive power supply terminal is determined and set so that when the resistance change value of the first photosensitive resistor reaches the maximum resistance change value multiplied by the first preset ratio, the voltage value of the first input terminal can reach the first trigger threshold, and the first comparator can output the trigger level.

6. The method for preventing disassembly of an energy storage device according to claim 1, characterized in that, The first photosensitive sensing module includes a first photoresistor, a first voltage divider resistor, and a first comparator; the first end of the first photoresistor is electrically connected to a first photosensitive power supply terminal; the second end of the first photoresistor and the first end of the first voltage divider resistor are electrically connected to the first input terminal of the first comparator; the second end of the first voltage divider resistor is grounded; and the output terminal of the first comparator is electrically connected to the control module. The anti-disassembly system also includes a second photosensitive sensing module disposed within the energy storage housing; The second photosensitive sensing module includes a second photoresistor, a second voltage divider resistor, and a second comparator. The second terminal of the second photoresistor is electrically connected to a second photosensitive power supply terminal. The second terminal of the second photoresistor and the first terminal of the second voltage divider resistor are electrically connected to the first input terminal of the second comparator. The second terminal of the second voltage divider resistor is grounded. The output terminal of the second comparator is electrically connected to a control module. The parameters of the second photoresistor and the first photoresistor are the same, and the parameters of the second comparator and the first comparator are the same. When the second comparator outputs the trigger level, the second trigger threshold at the first input terminal is the same as the first trigger threshold at the first input terminal when the first comparator outputs the trigger level. The energy storage housing also includes a hollow structure; the hollow structure is used to expose the second photoresistor; Before acquiring the first photosensitive signal output by the first photosensitive sensing module, the process includes: The sensing voltage value at the second photosensitive power supply terminal is obtained when the second photosensitive sensing module is in the critical state of outputting the trigger level; Based on the sensed voltage value, the voltage value of the first photosensitive power supply terminal is determined and set so that when the first photoresistor is exposed to the current environment, the first comparator can output the trigger level.

7. The method for preventing disassembly of an energy storage device according to claim 6, characterized in that, The first input terminal of the first comparator is the inverting input terminal of the first comparator, and the first input terminal of the second comparator is the inverting input terminal of the second comparator; Determining and setting the voltage value of the first photosensitive power supply terminal based on the sensed voltage value includes setting the voltage value of the first photosensitive power supply terminal to be greater than the sensed voltage value.

8. An anti-disassembly system for an energy storage device, characterized in that, The energy storage device includes an energy storage body, an energy storage shell, and peripheral circuits electrically connected to the energy storage body; the anti-tampering system includes a first photosensitive sensing module, a control module, an alarm module, and a display module disposed within the energy storage shell; the control module is electrically connected to the first photosensitive sensing module, the alarm module, and the display module respectively; the display module includes a network unit; The control module is used to execute the anti-disassembly method for the energy storage device according to any one of claims 1-7.

9. The anti-disassembly system for energy storage devices according to claim 8, characterized in that, The anti-disassembly system includes a plurality of first photosensitive sensing modules disposed within the energy storage housing; all of the plurality of first photosensitive sensing modules are electrically connected to the control module.

10. The anti-disassembly system for the energy storage device according to claim 8, characterized in that, The first photosensitive sensing module includes a first photoresistor, a first voltage divider resistor, and a first comparator; the first end of the first photoresistor is electrically connected to a first photosensitive power supply terminal; the second end of the first photoresistor and the first end of the first voltage divider resistor are electrically connected to the first input terminal of the first comparator; the second end of the first voltage divider resistor is grounded; and the output terminal of the first comparator is electrically connected to the control module.

11. The anti-disassembly system for an energy storage device according to claim 10, characterized in that, The anti-disassembly system also includes a second photosensitive sensing module disposed within the energy storage housing; The second photosensitive sensing module includes a second photoresistor, a second voltage divider resistor, and a second comparator; the first terminal of the second photoresistor is electrically connected to the second photosensitive power supply terminal; the second terminal of the second photoresistor and the first terminal of the second voltage divider resistor are electrically connected to the first input terminal of the second comparator; the second terminal of the second voltage divider resistor is grounded; and the output terminal of the second comparator is electrically connected to the control module. Wherein, the parameters of the second photoresistor are the same as those of the first photoresistor, the parameters of the second comparator are the same as those of the first comparator, and the second trigger threshold of the first input terminal when the second comparator outputs the trigger level is the same as the first trigger threshold of the first input terminal when the first comparator outputs the trigger level; The energy storage housing also includes a perforated structure; the perforated structure is used to expose the second photoresistor.

12. An energy storage device, characterized in that, The energy storage device includes an energy storage body, an energy storage shell, and peripheral circuits electrically connected to the energy storage body; an anti-disassembly system for the energy storage device according to any one of claims 8-11 is provided inside the energy storage shell.

13. The energy storage device according to claim 12, characterized in that, The anti-disassembly system also includes a second photosensitive sensing module disposed within the energy storage housing; The second photosensitive sensing module includes a second photoresistor, a second voltage divider resistor, and a second comparator; the second terminal of the second photoresistor is electrically connected to a second photosensitive power supply terminal; the second terminal of the second photoresistor and the first terminal of the second voltage divider resistor are electrically connected to the first input terminal of the second comparator; the second terminal of the second voltage divider resistor is grounded; and the output terminal of the second comparator is electrically connected to the control module. The second photoresistor has the same parameters as the first photoresistor in the first photosensitive sensing module, the second comparator has the same parameters as the first comparator in the first photosensitive sensing module, and the second trigger threshold of the first input terminal when the second comparator outputs the trigger level is the same as the first trigger threshold of the first input terminal when the first comparator outputs the trigger level. The energy storage housing also includes a hollow structure; the hollow structure is used to expose the second photoresistor; The energy storage shell also includes a sidewall structure connected to the hollow structure.

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