Intelligent battery pack state monitoring device

Abstract

The invention relates to an intelligent battery pack state monitoring device, and belongs to the technical field of battery pack monitoring. Comprising a workbench, and a gas storage cavity used for storing gas is formed in the workbench. In the test preparation stage, the positions of the elastic clamping block and the hydraulic ejector rod are adjusted by means of the XY guide rail to stably clamp the battery pack, it is ensured that the battery pack does not displace in the test process, the test stability is guaranteed, meanwhile, the temperature monitor arranged in the hydraulic ejector rod monitors the surface temperature in real time, the initial temperature state of the battery pack can be sensed in advance, and the test accuracy is improved. A basic reference is provided for the accuracy of subsequent test data, and interference of initial temperature abnormity on a test result is avoided; and secondly, the construction design of the test cavity brings a remarkable sealing advantage, the wavy air bag is tightly attached to the port of the battery pack by virtue of a flexible structure and is matched with the sealing cover and the rubber sealing strip to form a highly-sealed environment, and leakage of test media such as steam and high-temperature gas in the test process can be effectively prevented.

Description

Technical Field

[0001] This invention relates to the field of battery pack monitoring technology, and in particular to an intelligent battery pack status monitoring device. Background Technology

[0002] In the rapid development of the new energy industry, battery packs, as core components of new energy vehicles and energy storage devices, directly determine the operational quality and service life of the entire product due to their performance stability and safety reliability under different temperature and humidity environments. With the market's increasing demands for battery pack range, cycle life, and safety protection, conducting performance testing and safety assessments of battery packs under all operating conditions has become a crucial aspect of industry R&D and quality control.

[0003] Currently, while temperature and humidity testing equipment and methods for battery packs have been applied to some extent in the industry, many technical shortcomings still need to be addressed in actual testing. Regarding the sealing structure design of the test chamber, existing testing equipment often uses rigid seals or simple rubber gasket seals. These sealing structures are difficult to achieve a tight fit with the ports of battery packs of different shapes, making it easy for test media such as steam and high-temperature gases to leak during testing. This makes it difficult to maintain the preset temperature and humidity parameters within the test chamber, and interference from external environmental factors directly leads to deviations between the test conditions and actual requirements, resulting in test data that fails to accurately reflect the performance of the battery pack under the target temperature and humidity environment.

[0004] In terms of test environment simulation and data acquisition, existing test equipment has relatively limited environmental simulation capabilities, mostly only capable of simulating single high-temperature or single high-humidity environments. This makes it difficult to meet the testing requirements of combined high-temperature and high-humidity conditions and to comprehensively simulate the complex environments that battery packs may encounter during actual use. Some equipment with combined environment simulation capabilities has low precision in adjusting temperature and humidity parameters, making it difficult to achieve accurate switching between operating conditions. At the data acquisition level, traditional equipment mostly only collects the electrical performance parameters and temperature parameters of the battery pack, lacking monitoring of the gas composition inside the test chamber. This makes it difficult to detect flammable and harmful gases generated by chemical reactions during battery pack testing, posing significant safety hazards. At the same time, the acquisition of various types of data is often independent, making it difficult to establish correlation analysis between temperature, humidity, electrical performance, and gas composition, and failing to provide comprehensive data support for in-depth research on the impact mechanism of temperature and humidity conditions on battery pack performance.

[0005] Therefore, this application provides an intelligent battery pack status monitoring device to meet the requirements. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide an intelligent battery pack status monitoring device to solve the problems of poor sealing leading to medium leakage, difficulty in simulating high temperature and high humidity combined working conditions, lack of gas composition monitoring and isolated multi-source data in existing battery pack temperature and humidity testing equipment, which makes it difficult to truly reproduce complex use environments and provide timely warnings of safety risks.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: An intelligent battery pack status monitoring device includes a workbench with a gas storage chamber inside for storing gas. An air detector is installed inside the gas storage chamber. An XY guide rail is mounted on the top of the workbench, and elastic clamping blocks and hydraulic push rods are respectively mounted on the XY guide rails. A temperature monitor is installed inside the hydraulic push rods. A monitoring mechanism is located at one end of the workbench, and the battery pack body is placed on top of the hydraulic push rods. The monitoring mechanism includes a moisture generator, a ventilation chamber, a delivery pump, a heater, and a wave-shaped airbag located at one end of the workbench. Through the coordinated operation of the moisture generator, ventilation chamber, delivery pump, and heater, three charge-discharge test environments—high temperature and high humidity, and high temperature or high humidity—are constructed for the battery pack body, with a maximum temperature of 55°C and a maximum humidity of 95%RH. This allows for monitoring the charge-discharge performance and status of the battery pack body under different environmental conditions. Simultaneously, the wave-shaped airbag is used to ensure a tight fit with the port area of ​​the battery pack body, thereby forming a sealed test chamber.

[0008] Optionally, the monitoring mechanism includes an installation chamber fixedly connected to the surface of one end of the battery pack body, a fixing frame fixedly connected to one side of the installation chamber, and a groove for fixing the airbag is provided inside the fixing frame.

[0009] Optionally, the top of the installation chamber is hinged to a sealing cover, and a rubber sealing strip is installed at the connection gap between the sealing cover and the installation chamber. A fixed platform is fixedly installed inside the installation chamber.

[0010] Optionally, an electric push rod is fixedly connected to the fixed platform, and a clamping plate is fixedly installed at the output end of the electric push rod. The bottom of the clamping plate is slidably connected to the top of the fixed platform.

[0011] Optionally, a charging / discharging body is assembled on one side of the installation compartment. The clamping plate is used to clamp the electrical terminals and connect them to the charging / discharging body. The clamping plate is moved by the electric push rod to realize the insertion and removal of the terminals.

[0012] Optionally, the moisture-generating component consists of a heating rod, a water storage chamber, and a steam pipe. The heating rod is fixedly installed inside the water storage chamber, and the input end of the steam pipe is connected to the water storage chamber, while the output end is connected to the installation chamber.

[0013] Optionally, the ventilation chamber is connected to the installation chamber, and a guide pipe is connected to one end of the ventilation chamber. The output end of the guide pipe is connected to the first input end of the delivery pump, and a connecting pipe is connected to the first output end of the delivery pump. The output end of the connecting pipe is connected to the gas storage chamber. The second input end of the delivery pump is connected to the output end of the heater, and the second output end is connected to the ventilation chamber.

[0014] Optionally, a perfluoroethyl ketone (PFE) tank is fixedly installed at the other end of the workbench for immersing the burning battery pack body, and an electric slide rail is provided on the top of the PFE tank, with a fixed cover driven by the electric slide rail.

[0015] Optionally, a bracket is fixedly installed on one side of the top of the perfluoroethyl ketone tank, and an electric guide rail is fixedly installed on the top of the bracket. A mechanical gripper for transporting the battery pack body is slidably connected inside the electric guide rail.

[0016] Optionally, cameras for photographing the battery pack body and rangefinders for measuring distance are respectively installed on both sides of the bottom of the electric guide rail, with the rangefinders and cameras facing the inside of the perfluoroethyl ketone pool.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects: In the test preparation stage, the present invention uses XY guide rails to adjust the position of the elastic clamping block and the hydraulic push rod to achieve stable clamping of the battery pack, ensuring that the battery pack will not be displaced during the test and ensuring test stability. At the same time, the temperature monitoring instrument built into the hydraulic push rod monitors the surface temperature in real time, which can detect the initial temperature state of the battery pack in advance, providing a basic reference for the accuracy of subsequent test data and avoiding interference with test results due to abnormal initial temperature. Secondly, the design of the test chamber provides significant sealing advantages. The wave-shaped airbag, with its flexible structure, fits tightly against the battery pack port. Together with the sealing cover and rubber sealing strip, it forms a highly sealed environment, which can effectively prevent the leakage of test media such as steam and high-temperature gas during the test. This ensures that the temperature and humidity parameters of the test environment are accurate and controllable, avoids interference from external environmental factors on the test conditions, and thus ensures that the test data can truly reflect the actual performance of the battery pack under the target temperature and humidity conditions, thereby improving the reliability of the test results. Furthermore, the connection method of the electric push rod driving the clamping plate to press the electrical terminals to the charging and discharging body, combined with the on / off control of the relay, not only realizes the automated and precise docking of electrical connections, reducing the risk of connection deviation caused by manual operation, but also ensures the stability of the circuit connection during charging and discharging, avoiding test interruption or data distortion caused by poor contact. At the same time, the setting of the relay also provides a hardware foundation for rapid response to subsequent emergency power failure, improving the electrical safety of the testing process.

[0018] In the testing phase, this invention allows the system to flexibly coordinate various components to precisely switch between multiple environmental modes, such as high humidity, high temperature, and high temperature and high humidity, according to preset operating conditions. This comprehensively simulates the temperature and humidity environment of the battery pack under different actual usage scenarios, making the testing coverage more comprehensive and thus more fully evaluating the battery pack's performance in diverse environments. The delivery pump can pump the gas in the installation chamber to the storage cavity for temporary storage or analysis. Combined with the real-time monitoring of oxygen, combustible gases, and other components by the air detector, it can promptly detect harmful or combustible gases that may be generated by the battery pack during the testing process, avoid potential safety hazards in advance, ensure the safety and controllability of the testing environment, and prevent safety accidents such as fires and explosions caused by gas leaks. At the same time, the synchronous acquisition of temperature, electrical performance, and gas data can establish multi-dimensional data correlations, providing detailed data support for in-depth analysis of the impact mechanism of temperature and humidity conditions on battery pack performance, and helping to more accurately evaluate the performance stability and environmental adaptability of the battery pack.

[0019] In this invention, the relay can quickly cut off the circuit to immediately terminate the charging and discharging process, preventing the fire from spreading further due to continuous power supply. The mechanical gripper, combined with the precise positioning and status recording of the rangefinder and camera, can not only ensure the rapid and accurate capture of the burning battery pack, but also completely preserve the image data of the abnormal occurrence process, providing a basis for subsequent analysis of the cause of the abnormality. The fire extinguishing design of the perfluoroethyl ketone pool, with the efficient heat absorption and chemical inhibition capabilities of the perfluoroethyl ketone extinguishing liquid, can quickly extinguish the flames and cool the battery. Compared with traditional fire extinguishing methods, the fire extinguishing efficiency is higher and it can effectively prevent reignition. At the same time, completely immersing the burning battery pack in the extinguishing liquid can prevent the diffusion of harmful gases generated during the fire extinguishing process, further ensuring the safety of the test environment, reducing the harm to surrounding equipment and personnel, and also preserving the battery pack's remains to the greatest extent, facilitating subsequent in-depth research on the thermal runaway mechanism. Attached Figure Description

[0020] Figure 1 A schematic diagram of the three-dimensional structure of an intelligent battery pack status monitoring device; Figure 2 This is an assembly diagram of the monitoring mechanism of the present invention; Figure 3 This is a partial structural diagram of the monitoring mechanism of the present invention; Figure 4This is a breakdown diagram of the monitoring mechanism of the present invention; Figure 5 This is a cross-sectional view of the monitoring mechanism of the present invention; Figure 6 This is a partial structural cross-sectional view of the monitoring mechanism of the present invention; Figure 7 A plan view of an intelligent battery pack status monitoring device; Figure 8 This is a breakdown diagram of the overall structure of the present invention.

[0021] Figure label: 100. Workbench; 101. Gas storage chamber; 200. XY guide rail; 201. Elastic clamping block; 202. Hydraulic push rod; 2021. Temperature monitor; 300. Battery pack body; 400. Monitoring mechanism; 401. Installation chamber; 402. Fixing frame; 403. Airbag; 404. Sealing cover; 405. Electric push rod; 406. Clamping plate; 407. Charging and discharging body; 408. Moisture manufacturing component; 409. Ventilation chamber; 4010. Guide pipe; 4011. Delivery pump; 4012. Heater; 500. Perfluoroethyl ketone tank; 501. Fixing cover; 502. Electric guide rail; 503. Rangefinder; 504. Camera. Detailed Implementation

[0022] To further illustrate the technical means and effects adopted by the present invention in order to achieve the intended purpose, the following detailed description is provided in conjunction with the accompanying drawings and preferred embodiments, based on the specific implementation methods, structures, features and effects of the present invention.

[0023] like Figures 1 to 8As shown, an embodiment of the present invention provides an intelligent battery pack status monitoring device, including a workbench 100. The workbench 100 has a gas storage chamber 101 for storing gas, and an air detector is installed inside the gas storage chamber 101. An XY guide rail 200 is mounted on the top of the workbench 100, and an elastic clamping block 201 and a hydraulic push rod 202 are respectively mounted on the XY guide rail 200. A temperature monitor 2021 is installed inside the hydraulic push rod 202. A monitoring mechanism 400 is located at the top of one end of the workbench 100, and a battery pack body 300 is placed on top of the hydraulic push rod 202. The monitoring mechanism 400 includes a moisture generator 408 located at one end of the workbench 100. The system includes a ventilation chamber 409, a delivery pump 4011, a heater 4012, and a wave-shaped airbag 403. Through the coordinated operation of the moisture-generating component 408, the ventilation chamber 409, the delivery pump 4011, and the heater 4012, three charging and discharging test environments—high temperature and high humidity, and high temperature or high humidity—are constructed for the battery pack body 300. The highest temperature is 55°C, covering major climate zones worldwide, and the highest humidity is 95%RH, simulating multiple usage scenarios. This allows for the monitoring of the charging and discharging performance and status of the battery pack body 300 under different environmental conditions. At the same time, the wave-shaped airbag 403 is used to ensure a tight fit with the port area of ​​the battery pack body 300, thereby forming a sealed test chamber.

[0024] Specifically: The XY guide rail 200 consists of X-axis guide rails and Y-axis guide rails arranged perpendicularly to each other. Each guide rail is equipped with a ball screw linear module driven by a servo motor. The elastic clamping block 201 is connected to the slide of the X-axis module through a mounting plate, and the hydraulic push rod 202 is connected to the slide of the Y-axis module through a mounting base. During test preparation, the operator inputs commands through the control panel, or the system controls the two servo motors to operate according to a preset program, so that the elastic clamping block 201 and the hydraulic push rod 202 can be moved precisely to press against the corresponding side of the battery pack body 300, thereby achieving automated positioning and clamping.

[0025] From the above, we can conclude that: The workbench 100 is equipped with an XY guide rail 200 on top, on which an elastic clamping block 201 and a hydraulic push rod 202 are mounted to stably clamp and adjust the position of the battery pack body 300 placed on it. The hydraulic push rod 202 has a built-in temperature monitor 2021 to monitor the temperature changes of the battery pack in real time during the test. At the same time, the monitoring mechanism 400 at one end of the workbench 100 integrates a humidity generator 408, an air exchange chamber 409, a delivery pump 4011, and a heater 4012. By adjusting the humidity and temperature, it can flexibly construct three typical environments: high temperature and high humidity, simple high temperature, or simple high humidity, to simulate the charging and discharging state of the battery pack under complex climatic conditions. Crucially, the monitoring mechanism 400 uses a wave-shaped airbag 403, which can tightly fit the port of the battery pack to form a highly sealed test chamber, thereby ensuring precise control of environmental parameters and effective isolation of gas components. The entire system achieves comprehensive and reliable monitoring of the charging and discharging performance and safety status of the battery pack under different environmental stresses through the organic combination of mechanical positioning, environmental simulation and multi-point sensing.

[0026] like Figures 2 to 6 As shown, the monitoring mechanism 400 includes a mounting chamber 401 fixedly connected to one end of the battery pack body 300. A fixing frame 402 is fixedly connected to one side of the mounting chamber 401, and the fixing frame 402 has a groove for fixing the airbag 403 inside. A sealing cover 404 is hinged to the top of the mounting chamber 401. A rubber sealing strip is installed at the connection gap between the sealing cover 404 and the mounting chamber 401. A fixing platform is fixedly installed inside the mounting chamber 401. An electric push rod 405 is fixedly connected to the fixing platform. A clamping plate 406 is fixedly installed at the output end of the electric push rod 405. The bottom of the clamping plate 406 is slidably connected to the top of the fixing platform. A charging and discharging body 407 is assembled on one side inside the mounting chamber 401. The clamping plate 406 is used to clamp the electrical terminals and the charging and discharging body 407. The connection is achieved by moving the clamping plate 406 via the electric push rod 405, which enables the insertion and removal of the wiring terminals. The moisture manufacturing component 408 consists of a heating rod, a water storage chamber, and a steam pipe. The heating rod is fixedly installed inside the water storage chamber. The input end of the steam pipe is connected to the water storage chamber, and the output end is connected to the installation chamber 401. The ventilation chamber 409 is connected to the installation chamber 401, and one end of the ventilation chamber 409 is connected to a guide pipe 4010. The output end of the guide pipe 4010 is connected to the first input end of the delivery pump 4011, and the first output end of the delivery pump 4011 is connected to a connecting pipe. The output end of the connecting pipe is connected to the gas storage chamber 101. The second input end of the delivery pump 4011 is connected to the output end of the heater 4012, and the second output end is connected to the ventilation chamber 409.

[0027] Specifically, a relay is also installed on the installation compartment 401. During the test, the relay acts as an electronic control switch, which can quickly connect or disconnect the charging and discharging circuit according to system instructions or sensor feedback (such as abnormal temperature, voltage fluctuation, smoke signal, etc.), thereby accurately controlling the power connection status between the battery pack body 300 and the charging and discharging body 407.

[0028] Specifically: the air exchange chamber 409 is a rectangular cavity with a hollow interior, used for buffering and mixing gases. When simulating a high-temperature environment, the air heated by the heater 4012 is pumped into the air exchange chamber 409 by the delivery pump 4011. After a brief period of uniform mixing, the air is continuously introduced into the installation chamber 401 to ensure the stability of the temperature field. When exhaust or sampling is required, the gas in the installation chamber 401 is drawn into the air exchange chamber 409, and then can be completely or partially discharged to the gas storage chamber 101 through the guide pipe 4010.

[0029] From the above, we can conclude that: The mounting chamber 401 is fixed to one end of the battery pack body 300. Inside, there is a clamping plate 406 driven by an electric push rod 405. The clamping plate 406 slides on the fixed platform, precisely clamping or releasing the electrical terminals, thus automatically completing the electrical connection or disconnection with the charging / discharging body 407, improving the automation and safety of the testing process. The top of the mounting chamber 401 is hinged to a sealing cover 404 with a rubber sealing strip. Together with the wave-shaped airbag 403 embedded in the fixing frame 402, they form a highly sealed test chamber, effectively isolating external environmental interference. The moisture generator 408 converts water in the water storage chamber into steam via a heating rod, and introduces it into the mounting chamber 401 through a steam pipe, providing high humidity conditions for testing. The ventilation chamber 409 is connected to the installation chamber 401 and is connected to the delivery pump 4011 through the guide pipe 4010. The delivery pump 4011 can pump the gas in the installation chamber 401 to the gas storage chamber 101 inside the workbench 100 for recovery or analysis. On the other hand, it can send the heated gas back to the ventilation chamber 409 through linkage with the heater 4012, so as to achieve precise control of the temperature in the test chamber. The whole system controls the electrical connection through the electric push rod 405, ensures the airtightness of the chamber through the air bag 403 and the sealing structure, and regulates the temperature and humidity in coordination with the moisture generation and gas circulation. Thus, it can efficiently and stably simulate complex environments such as high temperature, high humidity or high temperature and high humidity, and comprehensively evaluate the charging and discharging performance and reliability of the battery pack under different working conditions.

[0030] like Figures 6 to 8As shown, a perfluoroethyl ketone (PFE) tank 500 is fixedly installed at the other end of the workbench 100 for immersing the burning battery pack body 300. The top of the PFE tank 500 is provided with an electric slide rail, and the PFE tank 500 is driven by the electric slide rail to have a fixed cover 501. A bracket is fixedly installed on one side of the top of the PFE tank 500, and an electric guide rail 502 is fixedly installed on the top of the bracket. A mechanical gripper for transporting the battery pack body 300 is slidably connected inside the electric guide rail 502. A camera 504 for photographing the battery pack body 300 and a rangefinder 503 for measuring distance are respectively installed on both sides of the bottom of the electric guide rail 502, and the rangefinder 503 and the camera 504 face the inside of the PFE tank 500.

[0031] Specifically, it also includes a controller, which is electrically connected to the temperature monitor 2021, the air detector, the relay, the electric guide rail 502, the mechanical gripper, and the camera 504. The controller is configured to determine that the battery pack is at risk of thermal runaway when the temperature value detected by the temperature monitor 2021 exceeds a first preset threshold and the concentration of combustible gas detected by the air detector exceeds a second preset threshold. The controller then controls the relay to cut off the circuit and starts the electric guide rail 502 and the mechanical gripper to perform the fire extinguishing and transfer procedure, while triggering the camera 504 to record images.

[0032] The system also includes a PLC or central controller. During testing, the controller receives real-time data from the temperature monitor 2021 and the air detector inside the gas storage chamber 101. Safety strategies are preset in the controller: for example, the dangerous threshold for the battery pack surface temperature is set to 80°C, and the dangerous threshold for the concentration of flammable gases such as hydrogen and carbon monoxide is set to 25% of the lower explosive limit. Once the monitored data simultaneously exceeds these two thresholds, a logical AND judgment is performed to reduce the probability of false triggering. The controller immediately executes a three-level emergency response: 1. It sends a command to the relay to instantly cut off the power supply circuit of the charging / discharging body 407; 2. It sends action commands to the electric guide rail 502 and the mechanical gripper to drive them to move above the battery pack and grab it; 3. It starts the camera 504 to record the entire process. Subsequently, the controller controls the fixed cover 501 of the perfluoroethyl ketone pool 500 to open and guides the mechanical gripper to immerse the battery pack in the fire extinguishing liquid, completing the automated safety disposal. All sensor data and emergency process images are stored in the memory associated with the controller for subsequent analysis.

[0033] From the above, we can conclude that: When the battery pack body 300 experiences thermal runaway or combustion during testing, the electric guide rail 502 located at the top of the pool drives the mechanical gripper to quickly move to the battery pack position, accurately grab it, and smoothly transport it above the perfluoroethyl ketone (PFE) pool 500. During this process, the rangefinder 503 integrated at the bottom of the guide rail monitors the distance between the battery pack and the pool opening in real time to ensure accurate placement; simultaneously, the camera 504 captures the battery pack's status, providing visual data for subsequent analysis. After confirming the correct position, the electric slide rail controls the opening of the fixing cover 501, and the mechanical gripper slowly immerses the burning battery pack into the PFE extinguishing liquid. Utilizing the excellent heat absorption and flame retardant properties of this medium, the fire is quickly suppressed and the battery is cooled. The entire process requires no manual intervention. Through the coordinated operation of the electric guide rail 502, the mechanical gripper, the rangefinder 503, and the camera 504, rapid response, safe handling, and full-process visual monitoring of sudden combustion events are achieved, significantly improving the safety and automation level of the testing system.

[0034] The working principle of the technical solution provided by this invention is as follows: First, place the battery pack body 300 above the hydraulic push rod 202 on the top of the workbench 100. Adjust the position of the elastic clamping block 201 and the hydraulic push rod 202 through the XY guide rail 200 to achieve stable clamping of the battery pack. At the same time, the temperature monitoring instrument 2021 built into the hydraulic push rod 202 starts to monitor its surface temperature in real time. Subsequently, one end of the battery pack is connected to the installation chamber 401 in the monitoring mechanism 400. The wave-shaped airbag 403 is embedded in the groove of the fixing frame 402 and fits tightly against the battery pack port with its flexible structure. Together with the sealing cover 404 hinged to the top of the installation chamber 401 and the rubber sealing strip, a highly sealed test chamber is constructed. Next, the electric push rod 405 drives the clamping plate 406 to slide along the fixed platform, pressing the power terminal onto the charging and discharging body 407 inside the mounting chamber 401, completing the electrical connection, and the relay then closes to allow power to be supplied; After entering the testing phase, the system coordinates the operation of the moisture manufacturing component 408, the heater 4012, the delivery pump 4011, and the ventilation chamber 409 according to preset operating conditions: if a high humidity environment is required, the heating rod heats water to generate steam and introduces it into the installation chamber 401 through the steam pipe; if a high temperature environment is required, the heater 4012 heats the air, which is then sent into the ventilation chamber 409 by the delivery pump 4011 and then flows into the installation chamber 401; in the high temperature and high humidity mode, both start simultaneously. During this process, the delivery pump 4011 can also pump the gas in the installation chamber 401 to the gas storage chamber 101 inside the workbench 100 through the guide pipe 4010 for temporary storage or analysis. The air detector built into the chamber continuously monitors the oxygen, combustible gas, and other components to ensure that the environment is safe and controllable. The battery pack body 300 undergoes charging and discharging cycles in the sealed chamber. The system simultaneously collects temperature, electrical performance, and gas data to comprehensively evaluate its performance and stability under different temperature and humidity conditions. Once an abnormal situation such as thermal runaway or fire is detected in the battery pack, the system immediately triggers the emergency mechanism: the relay quickly cuts off the circuit, the electric guide rail 502 drives the mechanical gripper to move above the battery pack, the rangefinder 503 accurately positions the height, and the camera 504 records the status simultaneously; at the same time, the fixed cover 501 on the top of the perfluoroethyl ketone pool 500 automatically opens via the electric slide rail, the mechanical gripper grabs the burning battery pack and smoothly transports it into the pool, completely immersing it in the perfluoroethyl ketone fire extinguishing liquid, using its efficient heat absorption and chemical inhibition capabilities to quickly extinguish the flames and cool the battery.

[0035] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A battery pack status monitoring device based on intelligence, characterized in that, The system includes a workbench (100), which has a gas storage chamber (101) for storing gas. An air detector is installed inside the gas storage chamber (101). An XY guide rail (200) is installed on the top of the workbench (100). An elastic clamping block (201) and a hydraulic push rod (202) are respectively mounted on the XY guide rail (200). A temperature monitor (2021) is installed inside the hydraulic push rod (202). A monitoring mechanism (400) is provided on the top of one end of the workbench (100). A battery pack body (300) is placed on the top of the hydraulic push rod (202). The monitoring device (400) includes a moisture manufacturing component (408) located at one end of the workbench (100), an air exchange chamber (409), a delivery pump (4011), a heater (4012), and a wave-shaped airbag (403). Through the coordinated operation of the moisture manufacturing component (408), the air exchange chamber (409), the delivery pump (4011), and the heater (4012), three charging and discharging test environments of high temperature and high humidity, high temperature or high humidity are constructed for the battery pack body (300). The highest temperature is 55°C and the highest humidity is 95%RH. In this way, the charging and discharging performance and status of the battery pack body (300) under different environmental conditions are monitored. At the same time, an airbag (403) with a wave-shaped structure is used to fit tightly with the port part of the battery pack body (300) to form a sealed test cavity.

2. The intelligent battery pack status monitoring device according to claim 1, characterized in that, The monitoring mechanism (400) includes an installation chamber (401) fixedly connected to the surface of one end of the battery pack body (300). A fixing frame (402) is fixedly connected to one side of the installation chamber (401), and a groove for fixing the airbag (403) is provided inside the fixing frame (402).

3. The intelligent battery pack status monitoring device according to claim 2, characterized in that, The top of the installation chamber (401) is hinged to a sealing cover (404), and a rubber sealing strip is installed at the connection gap between the sealing cover (404) and the installation chamber (401). A fixed platform is fixedly installed inside the installation chamber (401).

4. The intelligent battery pack status monitoring device according to claim 3, characterized in that, An electric push rod (405) is fixedly connected to the fixed platform. A clamping plate (406) is fixedly installed at the output end of the electric push rod (405). The bottom of the clamping plate (406) is slidably connected to the top of the fixed platform.

5. The intelligent battery pack status monitoring device according to claim 4, characterized in that, The charging and discharging body (407) is assembled on one side inside the installation chamber (401). The clamping plate (406) is used to clamp the electrical terminals and connect them to the charging and discharging body (407). The clamping plate (406) is moved by the electric push rod (405) to realize the insertion and removal of the terminals.

6. The intelligent battery pack status monitoring device according to claim 1, characterized in that, The moisture manufacturing component (408) consists of a heating rod, a water storage cavity, and a steam pipe. The heating rod is fixedly installed inside the water storage cavity. The input end of the steam pipe is connected to the water storage cavity, and the output end is connected to the installation chamber (401).

7. The intelligent battery pack status monitoring device according to claim 1, characterized in that, The ventilation chamber (409) is connected to the installation chamber (401), and one end of the ventilation chamber (409) is connected to a guide pipe (4010). The output end of the guide pipe (4010) is connected to the first input end of the delivery pump (4011), and the first output end of the delivery pump (4011) is connected to a connecting pipe. The output end of the connecting pipe is connected to the gas storage chamber (101). The second input end of the delivery pump (4011) is connected to the output end of the heater (4012), and the second output end is connected to the ventilation chamber (409).

8. The intelligent battery pack status monitoring device according to claim 1, characterized in that, A perfluoroethyl ketone (PFE) tank (500) is fixedly installed at the other end of the workbench (100) for immersing the burning battery pack body (300). The top of the PFE tank (500) is provided with an electric slide rail, and the PFE tank (500) is driven by the electric slide rail to have a fixed cover (501).

9. The intelligent battery pack status monitoring device according to claim 8, characterized in that, A bracket is fixedly installed on one side of the top of the perfluoroethyl ketone tank (500), and an electric guide rail (502) is fixedly installed on the top of the bracket. A mechanical gripper for transporting the battery pack body (300) is slidably connected inside the electric guide rail (502).

10. The intelligent battery pack status monitoring device according to claim 9, characterized in that, The electric guide rail (502) has a camera (504) for photographing the battery pack body (300) and a rangefinder (503) for measuring distance on both sides of its bottom, and the rangefinder (503) and camera (504) are facing the inside of the perfluoroethyl ketone pool (500).

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