A vehicle-mounted battery pack leakage prevention thermal management system

Abstract

The present invention relates to the field of vehicle-mounted battery technology, specifically to a vehicle-mounted battery pack leakage prevention thermal management system, including a battery pack main body, a thermal management partition group, a liquid cooling system and an intelligent thermal management control system. Several single battery compartments are formed in the battery pack main body for accommodating battery cells; the thermal management partition group is arranged between the single battery compartments, including a porous partition, a heat conduction group and a bus bar, wherein the porous partition is provided with an S-shaped inner hole flow channel and an overflow hole for the flow and heat exchange of the heat medium working medium; the heat conduction group includes a heat conduction plate and a deformation bar for realizing flexible connection and thermal management functions. The present invention realizes precise control of the battery module temperature and efficient heat exchange through the synergistic effect of the thermal management partition group, the liquid cooling system and the intelligent control system, ensuring the optimal operating temperature range of the battery pack under different working conditions; in the case of thermal runaway, the system forms a heat insulation barrier by separating the heat conduction plate and the porous partition, effectively blocking the heat propagation and improving the safety of the system.

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, thermal management technologies for onboard battery packs, the core of vehicle powertrains, are attracting increasing attention. Traditionally, temperature control systems for onboard battery packs typically employ a single liquid-cooling or air-cooling architecture. These typically consist of a network of liquid-cooling pipes or air ducts, with cooling ducts or fans installed on the battery module surface to achieve heat dissipation or heating. These systems typically rely on a single cooling or heating circuit, and in some designs, incorporate a simple temperature sensor network to achieve limited temperature control capabilities.

[0003] However, the existing traditional technical solutions have the following defects:

[0004] Traditional solutions, such as liquid or air cooling, can only achieve localized control of battery surface temperature, lacking effective heat conduction and uniform heat distribution, which can easily lead to uneven temperature distribution within the battery pack. Furthermore, the relatively simple flow path design of traditional liquid cooling circuits is not optimized for complex thermal management requirements, resulting in low heat exchange efficiency and difficulty meeting the battery pack's demand for precise temperature control under varying operating conditions.

[0005] Current battery pack thermal management systems typically focus on temperature control performance under normal operating conditions, but lack targeted design to prevent the spread of thermal runaway in battery modules. In traditional solutions, when thermal runaway occurs, the battery modules lack effective insulation, allowing heat to easily spread to other modules through direct conduction between modules or convection through air, potentially leading to a chain reaction and posing serious safety hazards.

[0006] Traditional solutions utilize liquid or air cooling systems as independent modules, separating mechanical support from thermal control. This not only increases overall system complexity but also makes battery module disassembly and maintenance difficult. In high-density battery packs, the separation of thermal management components from the battery modules occupies a large system footprint and imposes a single function, making it difficult to balance mechanical support, thermal control, and safety requirements. This reduces the operational stability and reliability of the battery pack.

[0007] The above defects limit the application of traditional technical solutions in high-performance automotive 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

[0008] 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 in traditional vehicle-mounted battery pack thermal management systems.

[0009] To this end, the present invention provides a vehicle-mounted battery pack leakage prevention thermal management system, which achieves precise temperature control, efficient heat exchange and thermal runaway safety protection of the battery module by optimizing the thermal management partition group structure, the liquid cooling system circulation path and introducing an intelligent control system.

[0010] The technical solution adopted by the present invention is: a vehicle-mounted battery pack leakage prevention thermal management system, comprising:

[0011] The battery pack body has several battery compartments formed inside for accommodating battery cells;

[0012] A thermal management partition assembly is provided in the battery pack body to separate the single battery compartments and realize thermal management function;

[0013] The liquid cooling system, including the header box, return box and circulation path, is used to drive the heat medium working medium to flow inside and outside the battery pack body to complete the heat transfer of the battery pack;

[0014] The intelligent thermal management control system includes a detection module and a control module, which are used to monitor the temperature changes inside the battery pack in real time and dynamically adjust the working status of the liquid cooling system.

[0015] The thermal management baffle group includes:

[0016] The porous partition has several 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;

[0017] 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;

[0018] 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.

[0019] The liquid cooling system drives the heat medium working medium to circulate between the vehicle 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.

[0020] In a preferred embodiment, the present invention can be further configured as follows:

[0021] Optimization of porous partition materials: The porous partition is made of metal foam materials with controllable thermal conductivity (such as aluminum or copper) or ceramic materials with strong thermal insulation. It serves as the flow path of the heat exchange medium during the thermal management intervention stage, and at the same time blocks heat diffusion in the thermal runaway state.

[0022] Intelligent control system: The intelligent thermal management control system includes a distributed temperature sensor network and a control module. The temperature sensors collect real-time temperature data inside and outside the battery pack body. 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.

[0023] Thermal runaway protection: In the event of thermal runaway, the thermal management baffle assembly separates the heat conducting plate from the porous baffle through hydraulic changes. The deformation strips flexibly deform to form a thermal insulation barrier, effectively preventing heat from spreading to other modules, thereby improving system safety.

[0024] Modular design: The battery pack body adopts a modular design. The single battery compartment and thermal management partition group can be disassembled independently to facilitate maintenance and replacement, while reducing the system footprint and improving system integration and operational stability.

[0025] Liquid cooling circulation path optimization: The collecting box and reflux box have built-in liquid pumps and control valves, which are connected to the busbars of the thermal management partition group, so that the heat medium working medium flows evenly through the inner hole flow channel and overflow hole of the porous partition, realizing efficient heat exchange and ensuring the temperature balance of the battery pack under different working conditions.

[0026] Through the above technical solution, the present invention realizes efficient thermal management of battery packs, 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.

[0027] The beneficial effects achieved by the present invention are:

[0028] 1. In the present invention, precise management of battery module temperature is achieved through the combined action of a thermal management baffle assembly, a liquid cooling system, and an intelligent control system. The S-shaped inner hole flow channel and 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, improving heat exchange efficiency and ensuring that the temperature of the battery pack is always within the optimal range under different operating conditions.

[0029] 2. In the present invention, in the event of thermal runaway, the system causes the heat conductive plate to separate from the porous partition through hydraulic changes, forming a thermal insulation barrier to prevent heat from spreading, thereby suppressing the spread of the accident and improving the safety of the battery pack.

[0030] 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

[0031] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the bottom structure of a battery pack body according to an embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the battery cell arrangement structure according to an embodiment of the present invention;

[0034] Figure 4 This is a schematic structural diagram of a thermal management baffle assembly according to an embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of the exploded structure of a thermal management baffle assembly according to one embodiment of the present invention;

[0036] Figure 6 This is a perspective schematic diagram of a porous partition structure according to an embodiment of the present invention.

[0037] Reference numerals:

[0038] 100, battery pack body; 110, current collecting box; 120, return box; 130, battery cell; 101, single battery compartment; 102, liquid plate; 131, insulation kit; 132, liquid filling gap;

[0039] 200, thermal management end;

[0040] 300, thermal management baffle group; 310, bus bar; 320, thermal conductive group; 330, porous baffle; 321, thermal conductive sheet; 322, deformation strip; 331, inner hole flow channel; 332, overflow hole. DETAILED DESCRIPTION

[0041] To make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features therein can be combined with each other without conflict.

[0042] It is to be understood that these descriptions are illustrative only and are not intended to limit the scope of the invention.

[0043] The following is combined with Figures 1-6An anti-leakage thermal management system for a vehicle battery pack provided by some embodiments of the present invention is described.

[0044] Example 1: Overall system structure

[0045] 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.

[0046] 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 baffles 300 are arranged in a straight line and fixed inside the battery pack body 100, and a liquid flow plate 102 is provided inside the battery pack body 100, arranged perpendicular to the thermal management baffles 300.

[0047] The liquid-passing plate 102 and thermal management baffle assembly 300 define a plurality of single-cell compartments 101 within the battery pack body 100. Several battery cells 130 are evenly arranged within the single-cell compartments 101, with the positive and negative terminals of the battery cells 130 facing downward. Each single-cell compartment 101 is filled with heat transfer fluid to soak the battery cells 130, ensuring even heat distribution through the fluid.

[0048] Example 2: Heat medium working medium circulation path

[0049] like Figure 4 and Figure 5 As shown, the thermal management baffle assembly 300 includes a bus bar 310 , a heat conducting assembly 320 and a porous baffle 330 .

[0050] 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 the surface of the porous partition plate 330 to form a plurality of overflow holes 332 .

[0051] The ports of the inner hole flow channels 331 on both sides of the porous partition 330 are merged through the bus bar 310 and communicated with the interior of the collecting box 110 and the return box 120 .

[0052] Both the collecting box 110 and the return box 120 have built-in liquid pumps and control valves for driving the heat medium working medium to flow in the circulation path.

[0053] The specific path is as follows: the heat medium enters the manifold box 110 from the vehicle radiator, passes through the control valve, and then enters the busbar 310, 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, passes through the partition through the overflow hole 332, and fully contacts and exchanges heat with the heat conducting plate 321. After that, the heat medium passes through the inner hole flow channel 331 and enters the busbar 310 at the other end, finally entering the return box 120, and then returns to the vehicle radiator for cooling, forming a complete circulation path.

[0054] During this cycle, the heat medium working medium will flow into the battery pack body 100 after being cooled by the car radiator, and use its heat exchange capacity to cool or heat the battery cells 130 inside each single battery compartment 101.

[0055] Example 3: Functions and Effects of the Thermal Management Baffle Group

[0056] The thermal management baffle assembly 300 is disposed between the single battery compartments 101 , and serves as a mechanical support for the battery module, and also achieves uniform distribution of the cooling or heating fluid through its internal flow channel design.

[0057] The heat conducting assembly 320 includes heat conducting sheets 321 located on both sides of the porous partition 330 and a deformable strip 322 located at the bottom of the porous partition 330. The heat conducting sheets 321 on both sides are flexibly connected by the deformable strip 322. The heat conducting sheets 321 are used to transfer heat, and the deformable strip 322 ensures flexibility and adaptability of the connection with the porous partition 330.

[0058] Example 4: Normal working mode

[0059] Under normal operating conditions of the battery pack, the collecting box 110 and the reflux box 120 drive the heat medium working medium to circulate between the vehicle radiator, the battery pack body 100 and the thermal management partition group 300 through the built-in liquid pump.

[0060] 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.

[0061] The heat medium working medium flows through the inner hole flow channel 331 inside the porous partition 330, contacts the heat conductive sheet 321 and the heat transfer fluid in the battery pack, and evenly distributes the heat to the surface of the battery cell 130 to achieve the cooling or heating function.

[0062] 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] 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, ensuring the thermal management efficiency of the battery pack under various working conditions.

[0064] During the thermal management intervention phase, the porous baffles 330 of the thermal management baffle assembly 300 act as a flow path for the heat exchange medium. The heat medium flows through the inner hole flow channel 331 and the overflow hole 332, cooperating with the flow of the coolant or heating fluid to achieve rapid cooling or heating.

[0065] 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 cells 130 .

[0066] Example 5: Abnormal state of thermal runaway

[0067] When a high temperature accident occurs inside the battery pack main body 100, the thermal management end 200 monitors and captures abnormal signals in real time through the detection module.

[0068] 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 bar 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 increases rapidly to form a heat insulation barrier, thereby blocking the transfer of heat between a single battery compartment 101 and other battery compartments, and avoiding the spread of high heat accidents.

[0069] 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.

[0070] The working principle and use process of the present invention:

[0071] The present invention's on-board battery pack leak-proof thermal management system achieves precise temperature management and efficient heat exchange within the battery modules through the combined action of the battery pack body 100, thermal management baffle assembly 300, liquid cooling system, and intelligent control system. The core of the system is a heat exchange network based on the thermal management baffle assembly 300. This system circulates a heat medium, such as coolant or heating fluid, through the liquid cooling system, enabling rapid heat transfer within and outside the battery pack, thereby controlling the battery module temperature and ensuring the stability and safety of the battery pack under various operating conditions.

[0072] 1. Heat medium working medium circulation path

[0073] like Figure 4 and Figure 5 As shown, the thermal management spacer assembly 300 includes a bus bar 310 , a thermally conductive assembly 320 , and a porous spacer 330 .

[0074] 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 .

[0075] The ports of the inner hole flow channels 331 on both sides of the porous partition 330 are merged through the bus bar 310 and communicated with the interior of the collecting box 110 and the return box 120 .

[0076] Both the header box 110 and the return box 120 have built-in liquid pumps and control valves to drive the heat medium working medium to flow in the circulation path. The specific path is:

[0077] The heat medium enters the header box 110 from the car radiator, enters the bus bar 310 through the control valve, and then enters the inner hole flow channel 331 of the porous partition 330.

[0078] The heat medium flows through the S-shaped inner hole 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 return box 120, and then returns to the car radiator for cooling, forming a complete circulation path.

[0079] During this cycle, the heat medium working medium will be cooled by the car radiator and then flow into the battery pack body 100 , using its heat exchange capacity to cool or heat the battery cells 130 .

[0080] 2. Functions and effects of thermal management partition group

[0081] The thermal management baffle assembly 300 is disposed between the single battery compartments 101 , and serves as a mechanical support for the battery module, and also achieves uniform distribution of the cooling or heating fluid through its internal flow channel design.

[0082] The heat conducting assembly 320 includes heat conducting sheets 321 located on both sides of the porous partition 330 and a deformable strip 322 located at the bottom of the porous partition 330. The heat conducting sheets 321 on both sides are flexibly connected by the deformable strip 322. The heat conducting sheets 321 are used to transfer heat, and the deformable strip 322 ensures flexibility and adaptability of the connection with the porous partition 330.

[0083] 3. Normal working mode

[0084] Under normal operating conditions of the battery pack, the collecting box 110 and the reflux box 120 drive the heat medium working medium to circulate between the vehicle radiator, the battery pack body 100 and the thermal management partition group 300 through the built-in liquid pump.

[0085] 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.

[0086] The heat medium working medium flows through the inner hole flow channel 331 inside the porous partition 330, contacts the heat conductive sheet 321 and the heat transfer fluid in the battery pack, and evenly distributes the heat to the surface of the battery cell 130 to achieve the cooling or heating function.

[0087] 4. Thermal management intervention stage

[0088] During the thermal management intervention phase, the porous baffles 330 of the thermal management baffle assembly 300 act as a flow path for the heat exchange medium. The heat medium flows through the inner hole flow channel 331 and the overflow hole 332, cooperating with the flow of the coolant or heating fluid to achieve rapid cooling or heating.

[0089] 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 cells 130 .

[0090] 5. Abnormal state of thermal runaway

[0091] The thermal management end 200 detects a high temperature accident in 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 heat conduction group 320 and the porous partition 330 have a plasmolysis effect, that is, the deformation strip 322 flexibly deforms, and the heat conduction sheet 321 separates from the surface of the porous partition 330, rapidly expanding to expand the gap to form a heat insulation barrier, blocking the transfer of heat, and preventing thermal runaway inside a single battery compartment 101 from affecting the battery cells 130 inside other single battery compartments 101.

[0092] 6. Comprehensive heat exchange effect

[0093] 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.

[0094] 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, distributing the heat evenly to each single battery compartment 101, thereby ensuring the thermal management efficiency of the battery pack under various working conditions.

[0095] Through the above working process, the system can effectively realize the cooling or heating function of the vehicle 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.

[0096] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, illustrative uses of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0097] 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 invention, and that the scope of the 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), and a heat transfer fluid is filled in the single battery compartments (101) to soak the battery cells (130); A thermal management partition group (300) is provided in the battery pack body (100), and each single battery compartment (101) is separated by the thermal management partition group (300); wherein the thermal management partition group (300) includes: a porous partition (330) having a plurality of inner hole flow channels (331) and overflow holes (332) extending through the surface thereof, for guiding the flow of a heat medium working medium and performing heat exchange with the battery cells (130); a heat conducting sheet (321) provided on both sides of the porous partition (330) for transferring heat and maintaining contact with the surface of the porous partition (330) under normal conditions; and a deformation strip (322) provided at the bottom of the porous partition (330) for maintaining 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. 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 assembly (300); A heating module, arranged in the collecting box (110), 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 porous partition (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.

3. 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 return box (120), for driving the circulation of the heat medium working medium; The control valve is installed in the liquid cooling pipeline to adjust the flow 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.

4. 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 working medium in a low temperature environment.

5. The vehicle-mounted battery pack anti-leakage thermal management system according to claim 3, characterized in that: The intelligent thermal management control system includes: 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 temperature data; The safety logic module sets a thermal runaway early warning function and initiates emergency cooling and insulation measures in the event of thermal runaway.

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

7. The vehicle-mounted battery pack anti-leakage thermal management system according to claim 6, characterized in that: The outer shell of the battery pack main body (100) is made of a metal and ceramic composite material.

8. 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 uniformly cool or heat the battery cell (130) in the single battery compartment (101).

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