Heat leakage prevention management system for vehicle-mounted battery pack

Abstract

The invention relates to the technical field of vehicle-mounted batteries, in particular to a vehicle-mounted battery pack heat leakage prevention management system which comprises a battery pack body, a heat management partition plate set, a liquid cooling system and an intelligent heat management control system. A plurality of single battery cabins are formed in the battery pack main body and are used for accommodating battery cells; the heat management partition plate group is arranged between the single battery cabins and comprises a porous partition plate, a heat conduction group and a bus bar, and an S-shaped inner hole runner and an overflow hole are formed in the porous partition plate and used for flowing and heat exchange of a heating medium working medium; and the heat conduction group comprises a heat conduction sheet and a deformation strip and is used for realizing flexible connection and heat management functions. Through the synergistic effect of the thermal management partition plate group, the liquid cooling system and the intelligent control system, accurate control and efficient heat exchange of the temperature of the battery module are realized, and the optimal working temperature range of the battery pack under different working conditions is ensured; under the condition of thermal runaway, the system forms a heat insulation barrier through separation of the heat-conducting fins and the porous partition plate, heat propagation is effectively blocked, and the system safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle-mounted batteries, and in particular to a vehicle-mounted battery pack leakage prevention thermal management system. Background Art

[0002] With the rapid development of the new energy vehicle industry, the thermal management technology of vehicle-mounted battery packs, as the core of the vehicle power system, has received increasing attention. In traditional technical solutions, the temperature control system of vehicle-mounted battery packs usually adopts a single liquid cooling or air cooling structure. Its basic structure includes a liquid cooling pipeline network or air duct device, and the heat dissipation or heating function is achieved by installing cooling pipes or fans on the surface of the battery module. These systems are usually based on a single cooling or heating circuit, and in some designs, a simple temperature sensor network is added to achieve limited temperature control capabilities.

[0003] However, the existing traditional technical solutions have the following defects: In traditional technical solutions, liquid cooling or air cooling devices can only achieve local control of the battery surface temperature, lacking effective heat conduction and uniform heat distribution methods, which easily leads to uneven temperature distribution within the battery pack. In addition, the flow path design of traditional liquid cooling pipelines is relatively simple, and is not optimized for complex thermal management requirements. The heat exchange efficiency is low, and it is difficult to meet the battery pack's demand for precise temperature control under different working conditions.

[0004] Current battery pack thermal management systems usually focus on temperature control performance under normal working conditions, but lack targeted design to prevent accidents from spreading when thermal runaway occurs in battery modules. In traditional technical solutions, when thermal runaway occurs, there is a lack of effective insulation measures between battery modules, and heat can easily spread to other modules through direct conduction between modules or air convection, which may lead to chain reactions and cause serious safety hazards.

[0005] In traditional technical solutions, liquid cooling or air cooling systems are mostly independent modules, and the mechanical support and temperature control functions are separated from each other, which not only increases the overall complexity of the system, but also makes it difficult to disassemble and maintain the battery modules. Especially in high-density battery packs, the design of separating thermal management components from battery modules makes the system occupy a large space, and at the same time, the function is single, making it difficult to take into account multiple requirements such as mechanical support, temperature control and safety protection, which reduces the operating stability and reliability of the battery pack.

[0006] The above defects limit the application of traditional technical solutions in high-performance vehicle battery pack thermal management systems. The present invention achieves significant improvements in thermal management efficiency, safety and system integration by improving the structure of the thermal management partition group, optimizing the liquid cooling system path, and introducing an intelligent control system. Summary of the invention

[0007] The present invention aims to solve the technical problems existing in the prior art or related art, namely, the problems of insufficient temperature control accuracy, low thermal runaway protection capability and poor system integration existing in the traditional vehicle-mounted battery pack thermal management system.

[0008] To this end, the present invention provides a vehicle-mounted battery pack leakage prevention thermal management system, which achieves precise temperature control of the battery module, efficient heat exchange and safety protection against thermal runaway by optimizing the thermal management partition group structure, the liquid cooling system circulation path and introducing an intelligent control system.

[0009] The technical solution adopted by the present invention is: an on-vehicle battery pack leakage prevention thermal management system, comprising: A battery pack body, which has a plurality of single battery compartments formed therein for accommodating battery cells; A thermal management partition group is arranged in the battery pack body to separate the single battery compartments and realize the thermal management function; The liquid cooling system includes a header box, a return box and a circulation path, which is used to drive the heat medium to flow inside and outside the battery pack body to complete the heat transfer of the battery pack; The intelligent thermal management control system includes a detection module and a control module, which are used to monitor the temperature changes in the battery pack body in real time and dynamically adjust the working state of the liquid cooling system.

[0010] The thermal management baffle group comprises: The porous partition has a number of inner hole flow channels arranged in an S-shaped arc, and the two ends penetrate the surface of the porous partition to form overflow holes for the flow and heat exchange of the heat medium; A heat conduction group, comprising heat conduction sheets located on both sides of the porous partition and a deformation strip located at the bottom of the porous partition, wherein the heat conduction sheets are flexibly connected to the porous partition through the deformation strip; The busbars are located at both ends of the porous partition and are connected to the collecting box and the return box to form a circulation path for the heat medium.

[0011] The liquid cooling system drives the heat medium working medium to circulate between the automobile radiator, the battery pack body and the thermal management partition group through a liquid pump and a control valve, thereby cooling or heating the battery cell.

[0012] In a preferred example, the present invention can be further configured as follows: Optimization of porous partition materials: The porous partition is made of metal foam material with controllable thermal conductivity (such as aluminum or copper) or ceramic material with strong thermal insulation. It serves as the flow path of the heat exchange medium in the thermal management intervention stage, and blocks heat diffusion in the thermal runaway state.

[0013] Intelligent control system: The intelligent thermal management control system includes a distributed temperature sensor network and a control module. The temperature sensor collects temperature data inside and outside the battery pack in real time. The control module dynamically adjusts the liquid pump rate, the opening and closing status of the control valve and the operating mode of the heating module according to temperature changes to achieve dynamic and intelligent temperature management.

[0014] Thermal runaway protection: In the thermal runaway state, the thermal management partition group causes the heat conductive plate to separate from the porous partition through hydraulic changes, and the deformation strip undergoes flexible deformation to form a thermal insulation barrier, effectively blocking the heat from spreading to other modules, thereby improving system safety.

[0015] Modular design: The battery pack body adopts a modular design. The single battery compartment and the thermal management partition group can be disassembled independently to facilitate maintenance and replacement, while reducing the system's occupied space and improving system integration and operational stability.

[0016] Liquid cooling circulation path optimization: The collecting box and the reflux box are equipped with a built-in liquid pump and a control valve, which are connected to the bus bar of the thermal management partition group, so that the heat medium working medium flows evenly through the inner hole flow channel and the overflow hole of the porous partition, realizing efficient heat exchange and ensuring the temperature balance of the battery pack under different working conditions.

[0017] Through the above technical scheme, the present invention realizes efficient thermal management of the battery pack, overcomes the problems of low temperature control accuracy, insufficient thermal runaway protection and complex structure in traditional technologies, and has significant improvements in battery pack temperature control management, safety and maintenance convenience.

[0018] The beneficial effects achieved by the present invention are: 1. In the present invention, accurate management of the battery module temperature is achieved through the combined action of the thermal management baffle group, the liquid cooling system and the intelligent control system. The S-shaped inner hole flow channel and the overflow hole designed inside the porous baffle, combined with the circulation path of the heat medium working medium, enable heat to be transferred quickly and evenly, improve the heat exchange efficiency, and ensure that the temperature of the battery pack is always within the optimal range under different working conditions.

[0019] 2. In the present invention, in the case of thermal runaway, the system causes the heat conductive sheet to separate from the porous partition through hydraulic changes, forming a heat insulation barrier to prevent heat propagation, thereby suppressing the spread of accidents and improving the safety of the battery pack.

[0020] 3. In the present invention, a combination of mechanical support, temperature control and modularity of the battery pack is achieved through a modular thermal management partition group and a single battery compartment, which facilitates the disassembly and maintenance of the battery module. The thermal management partition group integrates multiple functions such as mechanical support, heat exchange, thermal insulation protection and liquid cooling and heating into one, simplifies the structure, and greatly improves the operating stability, environmental adaptability and safety and reliability of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 A schematic diagram of the bottom structure of a battery pack body according to an embodiment of the present invention; Figure 3 A schematic diagram of a cell arrangement structure according to an embodiment of the present invention; Figure 4 A schematic diagram of the structure of a thermal management baffle assembly according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the exploded structure of a thermal management baffle assembly according to an embodiment of the present invention; Figure 6 This is a perspective schematic diagram of a porous partition structure according to an embodiment of the present invention.

[0022] Reference numerals: 100, battery pack body; 110, current collecting box; 120, reflux box; 130, battery cell; 101, single battery compartment; 102, liquid plate; 131, insulation kit; 132, liquid filling gap; 200, thermal management end; 300, thermal management baffle group; 310, bus bar; 320, heat conduction group; 330, porous baffle; 321, heat conduction sheet; 322, deformation strip; 331, inner hole flow channel; 332, overflow hole. DETAILED DESCRIPTION

[0023] To make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in combination with specific implementations and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0024] It is to be understood that these descriptions are exemplary only and are not intended to limit the scope of the invention.

[0025] The following is combined with Figure 1-Figure 6 An anti-leakage thermal management system for a vehicle battery pack provided by some embodiments of the present invention is described.

[0026] Example 1: Overall structure of the system like Figure 1 As shown, the present invention provides a vehicle-mounted battery pack leakage prevention thermal management system, including a battery pack body 100, a thermal management terminal 200, a thermal management partition group 300 and a plurality of battery cells 130.

[0027] The battery pack body 100 is provided with a current collecting box 110 and a return box 120 on both sides. A plurality of thermal management baffle groups 300 are arranged in a straight line and fixed inside the battery pack body 100, and a liquid passing plate 102 is provided inside the battery pack body 100 and arranged perpendicularly to the thermal management baffle group 300.

[0028] The liquid-passing plate 102 and the thermal management baffle group 300 divide a plurality of single battery compartments 101 inside the battery pack body 100. A plurality of battery cells 130 are evenly arranged in the single battery compartment 101, and the positive and negative wiring ports of the battery cells 130 are arranged downward, and heat transfer liquid is added inside each single battery compartment 101 to soak the battery cells 130, ensuring that the heat of the battery cells can be evenly distributed through the transfer liquid.

[0029] Example 2: Heat medium working medium circulation path like Figure 4 and Figure 5 As shown, the thermal management baffle plate group 300 includes a bus bar 310 , a thermal conductive group 320 and a porous baffle plate 330 .

[0030] A plurality of inner hole flow channels 331 are provided inside the porous partition plate 330 . The inner hole flow channels 331 are arranged in an S-shaped arc, and both ends of the inner hole flow channels 331 penetrate through the surface of the porous partition plate 330 to form a plurality of overflow holes 332 .

[0031] The ports of the inner hole flow channels 331 on both sides of the porous partition plate 330 are connected through the bus bar 310 and communicated with the interior of the current collecting box 110 and the return box 120 .

[0032] Both the manifold box 110 and the return box 120 have built-in liquid pumps and control valves for driving the heat medium to flow in the circulation path.

[0033] The specific path is as follows: the heat medium enters the manifold box 110 from the automobile radiator, enters the bus bar 310 through the control valve, and then enters the inner hole flow channel 331 of the porous partition 330. The heat medium flows through the S-shaped inner hole flow channel 331 inside the porous partition 330 and passes through the partition through the overflow hole 332 to fully contact and exchange heat with the heat conducting sheet 321. Then, the heat medium enters the bus bar 310 at the other end through the inner hole flow channel 331, and finally enters the reflux box 120, and then returns to the automobile radiator for cooling, forming a complete circulation path.

[0034] During this cycle, the heat medium working medium will flow into the battery pack body 100 after being cooled by the automobile radiator, and use its heat exchange capacity to cool or heat the battery cells 130 inside each single battery compartment 101.

[0035] Example 3: Functions and effects of thermal management baffle assembly The thermal management baffle group 300 is disposed between the single battery compartments 101 , and can serve as a mechanical support for the battery module, and can also achieve uniform distribution of the cooling or heating fluid through its internal flow channel design.

[0036] The heat conducting group 320 includes heat conducting sheets 321 located on both sides of the porous partition 330 and a deformation strip 322 located at the bottom of the porous partition 330, and the heat conducting sheets 321 on both sides are flexibly connected by the deformation strip 322. The heat conducting sheets 321 are used to transfer heat, and the deformation strip 322 ensures the flexibility and adaptability of the connection with the porous partition 330.

[0037] Example 4: Normal working mode Under normal working conditions of the battery pack, the collector box 110 and the reflux box 120 drive the heat medium working medium to circulate between the automobile radiator, the battery pack body 100 and the thermal management partition group 300 through the built-in liquid pump.

[0038] The liquid pump provides a stable delivery pressure, and the inner liquid pumps of the two work synchronously, thereby increasing the liquid flow rate inside the thermal management baffle group 300 and improving the heat exchange efficiency.

[0039] The heat medium flows through the inner hole channel 331 inside the porous partition 330, contacts the heat conductive sheet 321 and the heat transfer liquid in the battery pack, and evenly distributes the heat to the surface of the battery cell 130 to achieve the cooling or heating function.

[0040] During the liquid cooling and heating process, the flow rate, pressure and temperature of the heat medium working medium are dynamically adjusted by the liquid pump and control valve built into the manifold box 110 and the reflux box 120 to achieve precise temperature control.

[0041] The S-shaped inner hole flow channel 331 and overflow hole 332 inside the porous partition 330 cooperate with the heat conductive sheet 321 to make the heat medium working medium fully contact with the heat transfer liquid inside the battery pack, and evenly distribute the heat to each single battery compartment 101, thereby ensuring the thermal management efficiency of the battery pack under various working conditions.

[0042] In the thermal management intervention stage, the porous baffles 330 of the thermal management baffle group 300 serve as the flow path of the heat exchange medium. The heat medium flows through the inner hole flow channel 331 and the overflow hole 332, and cooperates with the flow of the coolant or heating fluid to achieve rapid cooling or heating functions.

[0043] Inside the battery pack body 100 , the heat transfer fluid in the single battery compartment 101 further evenly distributes the heat transferred by the heat medium working medium, thereby effectively cooling or heating the battery cell 130 .

[0044] Example 5: Abnormal state of thermal runaway When a high temperature accident occurs inside the battery pack body 100 , the thermal management end 200 monitors and captures abnormal signals in real time through the detection module.

[0045] At this time, the liquid pump rate inside the reflux box 120 is reduced or stopped, and the control valve is closed; when the liquid pump inside the collecting box 110 works on one side, the heat medium working medium generates hydraulic pressure increase in the inner hole flow channel 331, and the heat conductive group 320 and the porous partition 330 have the effect of plasmolysis, that is, the heat conductive sheet 321 is pushed by the hydraulic pressure, and the deformation strip 322 is flexibly deformed under the action of the hydraulic pressure, so that the heat conductive sheet 321 is separated from the surface of the porous partition 330, and the gap is rapidly increased to form a heat insulation barrier, thereby blocking the heat transfer between the single battery compartment 101 and other battery compartments, and avoiding the spread of high heat accidents.

[0046] In summary, through the above embodiments, the vehicle-mounted battery pack leakage prevention thermal management system of the present invention can efficiently realize the cooling or heating function of the battery pack, adapt to the operating requirements under normal working and extreme working conditions, and ensure the temperature stability and operating safety of the battery pack.

[0047] The working principle and use process of the present invention: The vehicle-mounted battery pack leakage prevention thermal management system of the present invention realizes accurate temperature management and efficient heat exchange of the battery module through the joint action of the battery pack body 100, the thermal management baffle group 300, the liquid cooling system and the intelligent control system. The core of the system is a heat exchange network with the thermal management baffle group 300 as the carrier, which drives the heat medium working medium such as coolant or heating liquid through the liquid cooling system to realize rapid heat transfer inside and outside the battery pack, thereby controlling the temperature of the battery module and ensuring the stability and safety of the battery pack under various working conditions.

[0048] 1. Heat medium working medium circulation path like Figure 4 and Figure 5 As shown, the thermal management baffle assembly 300 includes a bus bar 310 , a thermally conductive assembly 320 , and a porous baffle 330 .

[0049] A plurality of inner hole flow channels 331 are provided inside the porous partition plate 330 . The inner hole flow channels 331 are arranged in an S-shaped arc, and both ends thereof penetrate through the surface of the porous partition plate 330 to form a plurality of overflow holes 332 .

[0050] The ports of the inner hole flow channels 331 on both sides of the porous partition plate 330 are connected through the bus bar 310 and communicated with the interior of the current collecting box 110 and the return box 120 .

[0051] Both the header box 110 and the return box 120 have built-in liquid pumps and control valves to drive the heat medium to flow in the circulation path. The specific path is: The heat medium enters the header box 110 from the automobile radiator, enters the bus bar 310 through the control valve, and then enters the inner hole flow channel 331 of the porous partition 330.

[0052] The heat medium flows through the S-shaped inner hole flow channel 331 inside the porous partition 330 and passes through the partition through the overflow hole 332, enters the bus bar 310 at the other end, and finally enters the reflux box 120, and then returns to the car radiator for cooling, forming a complete circulation path.

[0053] During this cycle, the heat medium working medium will flow into the battery pack body 100 after being cooled by the automobile radiator, and use its heat exchange capacity to cool or heat the battery cell 130.

[0054] 2. Functions and effects of thermal management baffle group The thermal management baffle group 300 is disposed between the single battery compartments 101 , and can serve as a mechanical support for the battery module, and can also achieve uniform distribution of the cooling or heating fluid through its internal flow channel design.

[0055] The heat conducting group 320 includes heat conducting sheets 321 located on both sides of the porous partition 330 and a deformation strip 322 located at the bottom of the porous partition 330, and the heat conducting sheets 321 on both sides are flexibly connected by the deformation strip 322. The heat conducting sheets 321 are used to transfer heat, and the deformation strip 322 ensures the flexibility and adaptability of the connection with the porous partition 330.

[0056] 3. Normal working mode Under normal working conditions of the battery pack, the collector box 110 and the reflux box 120 drive the heat medium working medium to circulate between the automobile radiator, the battery pack body 100 and the thermal management partition group 300 through the built-in liquid pump.

[0057] The liquid pump provides a stable delivery pressure, and the inner liquid pumps of the two work synchronously, thereby increasing the liquid flow rate inside the thermal management baffle group 300 and improving the heat exchange efficiency.

[0058] The heat medium flows through the inner hole channel 331 inside the porous partition 330, contacts the heat conductive sheet 321 and the heat transfer liquid in the battery pack, and evenly distributes the heat to the surface of the battery cell 130 to achieve the cooling or heating function.

[0059] 4. Thermal management intervention stage In the thermal management intervention stage, the porous baffles 330 of the thermal management baffle group 300 serve as the flow path of the heat exchange medium. The heat medium flows through the inner hole flow channel 331 and the overflow hole 332, and cooperates with the flow of the coolant or heating fluid to achieve rapid cooling or heating functions.

[0060] Inside the battery pack body 100 , the heat transfer fluid in the single battery compartment 101 further evenly distributes the heat transferred by the heat medium working medium, thereby effectively cooling or heating the battery cell 130 .

[0061] 5. Abnormal state of thermal runaway The thermal management end 200 detects a high temperature accident of the battery pack, thereby shutting down or reducing the liquid pump rate inside the reflux box 120, or shutting down the control valve inside the reflux box 120. Under the operation of the single liquid pump inside the collecting box 110, the hydraulic pressure inside the inner hole flow channel 331 increases, and the thermal conductive group 320 and the porous partition 330 have a plasmolysis effect, that is, the deformation strip 322 flexibly deforms, and the thermal conductive sheet 321 separates from the surface of the porous partition 330, rapidly expands, and the gap expands to form a thermal insulation barrier, which blocks the transfer of heat and prevents thermal runaway inside a single battery compartment 101 from affecting the battery cells 130 inside other single battery compartments 101.

[0062] 6. Comprehensive heat exchange effect During the liquid cooling and heating process, the flow rate, pressure and temperature of the heat medium working medium are dynamically adjusted by the liquid pump and control valve built into the manifold box 110 and the reflux box 120 to achieve precise temperature control.

[0063] Under the action of the porous partition, the heat medium working medium is in full contact with the heat transfer fluid inside the battery pack, and the heat is evenly distributed to each single battery compartment 101, ensuring the thermal management efficiency of the battery pack under various working conditions.

[0064] Through the above working process, the system can effectively realize the cooling or heating function of the vehicle-mounted battery pack, adapt to the operating requirements under normal working and extreme working conditions, and ensure the temperature stability and operating safety of the battery pack.

[0065] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0066] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A vehicle-mounted battery pack anti-leakage thermal management system, characterized in that: include: A battery pack body (100) has a plurality of single battery compartments (101) formed therein for accommodating battery cells (130), wherein a heat transfer liquid is filled inside the single battery compartments (101) to soak the battery cells (130); A thermal management partition group (300) is arranged in the battery pack body (100), and each single battery compartment (101) is separated by the thermal management partition group (300); A liquid cooling system, comprising a header box (110), a return box (120) and a circulation channel, for driving a heat medium working medium to circulate through the thermal management baffle group (300); A heating module, arranged in the collecting box (110), and used for heating the heat medium working medium in a low temperature environment; The intelligent thermal management control system is arranged inside the thermal management end (200), and comprises a detection module and a control module, which are used to monitor the temperature state inside the battery pack body (100) and dynamically adjust the working state of the liquid cooling system and the heating module according to the detection signal.

2. The vehicle-mounted battery pack anti-leakage thermal management system according to claim 1, characterized in that: The thermal management baffle assembly (300) comprises: A porous partition (330) having a plurality of inner hole flow channels (331) and overflow holes (332) extending through its surface, for guiding the flow of a heat medium working medium and performing heat exchange with the battery core (130); Heat conducting sheets (321), arranged on both sides of the porous partition (330), are used to transfer heat and are kept in contact with the surface of the porous partition (330) under normal conditions; The deformation strip (322) is arranged at the bottom of the porous partition (330) and is used to maintain the connection effect of the heat conducting sheets (321) on both sides through flexible expansion in a thermal runaway state, thereby achieving the formation of a heat insulation barrier.

3. The vehicle-mounted battery pack anti-leakage thermal management system according to claim 2, characterized in that: The porous partition plate (330) is made of a metal foam material with controllable thermal conductivity or a ceramic material with strong thermal insulation, the inner hole flow channel (331) is arranged in an S-shaped arc, and a plurality of inner hole flow channels (331) are arranged horizontally in sequence.

4. The vehicle-mounted battery pack anti-leakage thermal management system according to claim 1, characterized in that: The liquid cooling system comprises: A liquid pump, disposed in the collecting box (110) and the reflux box (120), and used to drive the circulation of the heat medium working medium; A control valve is provided in the liquid cooling pipeline to adjust the flow rate of the heat medium working medium; A radiator is connected to the reflux box (120) and is used to release the heat of the heat medium working medium to the outside.

5. The vehicle-mounted battery pack anti-leakage thermal management system according to claim 1, characterized in that: The heating module is a resistive heater or a heat pump device, which is used to heat the battery pack through a heat medium in a low temperature environment.

6. The vehicle-mounted battery pack anti-leakage thermal management system according to claim 1, characterized in that: The intelligent thermal management control system comprises: Temperature sensors are distributed inside and outside the battery pack body (100) and around the thermal management partition group (300) and are used to monitor the temperature of the battery module in real time; A control module, integrating a temperature control algorithm, for adjusting the working states of the liquid pump, the control valve and the heating module according to the temperature data; The safety logic module sets the thermal runaway warning function and initiates emergency cooling and insulation measures in case of thermal runaway.

7. The vehicle-mounted battery pack anti-leakage thermal management system according to claim 1, characterized in that: The battery pack body (100) adopts a modular design, and the internal single battery compartment (101) and the thermal management partition group (300) can be independently disassembled.

8. The vehicle-mounted battery pack anti-leakage thermal management system according to claim 7, characterized in that: The outer shell of the battery pack main body (100) is made of a metal and ceramic composite material.

9. The vehicle-mounted battery pack anti-leakage thermal management system according to claim 1, characterized in that: The heat transfer fluid is a high temperature resistant, low viscosity ethylene glycol solution, and is used to evenly cool or heat the battery cell (130) in the single battery compartment (101).

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