WO2022111552A1

WO2022111552A1 - Power battery cooling module, thermal runaway processing method and device, and storage medium

Info

Publication number: WO2022111552A1
Application number: PCT/CN2021/132971
Authority: WO
Inventors: 耿宇明; 孙焕丽; 孙士杰; 卢军; 赵名翰; 刘涛
Original assignee: 中国第一汽车股份有限公司
Priority date: 2020-11-25
Filing date: 2021-11-25
Publication date: 2022-06-02
Also published as: CN112467245A

Abstract

Embodiments of the present application are a power battery cooling module, a thermal runaway processing method and device, and a storage medium. The power battery cooling module comprises a shell, supporting members, batteries, and an exhaust assembly. A mounting cavity is formed in the shell, and a gas source communicated with the mounting cavity is provided on the top wall of the shell. The supporting members are disposed in the mounting cavity; the number of the supporting members is more than one; the plurality of supporting members are distributed at intervals along the length direction of the shell; one supporting member and another supporting member are respectively disposed on two opposite inner walls of the shell. The number of the batteries is more than one; first gas passages are formed between side walls of the batteries and the supporting members; a second gas passage is formed between the inner wall of the shell and ends of the batteries; cell lugs are located in the second air passage. The exhaust assembly is disposed on the bottom wall of the shell and is communicated with the mounting cavity, and the exhaust assembly is used for making the mounting cavity be communicated with an interior space and an exterior space and making the communicating areas between the exhaust assembly and the interior space and between the exhaust assembly and the exterior space adjustable.

Description

Power battery cooling module, thermal runaway treatment method, equipment and storage medium

This application claims the priority of the Chinese patent application with application number 202011342168.2 filed with the China Patent Office on November 25, 2020, the entire contents of the above application are incorporated into this application by reference.

technical field

The present application relates to the technical field of power batteries, for example, to a power battery cooling module, a thermal runaway processing method, equipment, and storage medium.

Background technique

In a cooling system using air as a cooling medium, it is usually necessary to maximize the contact area between the air and the structure to be cooled, so as to increase the cooling area and improve the cooling effect. In the cooling system of the battery module, the battery tabs on the battery are usually connected to the positive and negative electrodes in the battery core. Therefore, the cooling effect of the battery and the battery tabs should be ensured as much as possible during the cooling process of the battery. In addition, when thermal runaway occurs in the battery module, the battery will release a large amount of smoke that is harmful to the human body, which needs to be discharged to the outside of the vehicle in time. In the battery cooling scheme in the related art, a battery bracket is usually set in the module, a soft-pack battery is installed in the battery bracket, and a cooling air duct is formed to cool multiple batteries. It is also difficult to discharge harmful gases in time when thermal runaway occurs.

SUMMARY OF THE INVENTION

In a first aspect, an embodiment of the present application discloses a power battery cooling module, including:

A casing, an installation cavity is formed in the casing, and the top wall of the casing is provided with an air source communicating with the installation cavity; a support piece, the support piece is arranged in the installation cavity, the support piece A plurality of the support members are distributed at intervals along the length direction of the casing, and two opposite inner walls of the casing are respectively provided with one support member and the other of the plurality of support members. A support, there is a gap between two ends of each of the multiple supports and the inner wall of the casing; a battery, there are multiple batteries, and the cell tabs of each battery are connected to the inner wall of the casing. The inner walls of the casing are connected, each of the batteries is provided between two adjacent support members among the plurality of support members, and a side wall of each of the batteries and the support members are formed with a first air duct, a second air duct is formed between the inner wall of the casing and the ends of the plurality of batteries, and the battery core tabs are located in the second air duct; an exhaust assembly, the exhaust air The air assembly is arranged on the bottom wall of the housing and communicates with the installation cavity, the exhaust assembly is used to communicate with the installation cavity and the interior space and the exterior space respectively, and the exhaust assembly communicates with the installation cavity. The communication area between the interior space and the exhaust assembly and the exterior space is adjustable.

In the second aspect, the embodiment of the present application discloses a thermal runaway processing method, the thermal runaway processing method adopts the power battery cooling module described above, and the thermal runaway processing method includes: S1, the controller monitors the casing Whether thermal runaway occurs inside; S2. In response to the controller monitoring that thermal runaway occurs inside the housing, the controller increases the intake air volume and the intake speed of the air source toward the installation cavity; S3 , the exhaust assembly closes the passage between the installation cavity and the vehicle interior space and adjusts the communication area between the installation cavity and the vehicle exterior space to the maximum.

In a third aspect, an embodiment of the present application discloses an electronic device, including:

at least one processor;

memory, arranged to store at least one program,

The at least one processor is configured to execute the at least one program to implement the thermal runaway processing method as described above.

In a fourth aspect, an embodiment of the present application discloses a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, implements the thermal runaway processing method described above.

Additional aspects and advantages of the present application will be set forth in part in the description below.

Description of drawings

FIG. 1 is a schematic structural diagram of the power battery cooling module provided by the specific embodiment of the present application after removing the exhaust component;

2 is a schematic top-view structural diagram of a power battery cooling module provided by a specific embodiment of the present application;

Fig. 3 is the partial enlarged structure schematic diagram of A place in Fig. 2;

4 is a schematic structural diagram of an exhaust assembly provided by a specific embodiment of the present application;

FIG. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

reference number

1. Shell; 11. End plate; 12. Side plate; 13. Bus bar;

2. Support; 3. Battery; 31. Battery tab; 4. The first air duct; 5. The second air duct;

6. Exhaust assembly; 61, Connecting pipe; 62, First exhaust pipe; 63, Second exhaust pipe; 64, Regulating part; 641, Driving part; 642, Valve plate;

Detailed ways

The present application will be described below with reference to the accompanying drawings and through specific embodiments.

In the description of the embodiments of the present application, unless otherwise expressly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, or It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication between the two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood in specific situations.

In the embodiments of the present application, unless otherwise expressly specified and limited, the first feature "on" or "under" the second feature may include direct contact between the first and second features, or may include the first and second features. The two features are not in direct contact but through another feature between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature is directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

It is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "top", "bottom", "front", "rear", "left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", "Radial", " The orientation or positional relationship indicated such as "circumferential direction" is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, It is constructed and operated in a particular orientation and therefore should not be construed as a limitation of the present application. In the description of this application, unless stated otherwise, "plurality" means two or more. In addition, the terms "first" and "second" are only used for distinction in description, and have no special meaning.

The following describes the structure of the power battery cooling module according to the embodiment of the present application with reference to FIGS. 1 to 4 .

As shown in FIGS. 1-4 , FIG. 1 discloses a power battery cooling module, which includes a casing 1 , a support 2 , a battery 3 and an exhaust assembly 6 . An installation cavity is formed in the housing 1 , and a gas source communicated with the installation cavity is provided on the top wall of the housing 1 . The supporting member 2 is arranged in the installation cavity, and there are multiple supporting members 2. The plurality of supporting members 2 are distributed at intervals along the length direction L of the casing 1. A supporting member 2 is respectively provided on the two opposite inner walls of the casing 1. , there is a gap between the two ends of the support member 2 and the inner wall of the housing 1 . There are a plurality of batteries 3 , the battery tabs 31 of each battery 3 are connected to the inner wall of the casing 1 , each battery 3 is arranged between two adjacent supporting members 2 , and the side wall of each battery 3 is connected to the inner wall of the casing 1 . A first air duct 4 is formed between the parts 2 , a second air duct 5 is formed between the inner wall of the casing 1 and the end of the battery 3 , and the battery core tabs 31 are located in the second air duct 5 . The exhaust assembly 6 is arranged on the bottom wall of the housing 1 and communicates with the installation cavity. The exhaust assembly 6 is used to communicate the installation cavity, the interior space and the exterior space, and the exhaust assembly 6 is connected to the interior space and the exterior space. The connection area is adjustable.

It can be understood that, continuing to refer to FIG. 2 , the support member 2 can not only support the stable installation of the plurality of batteries 3 in the casing 1 , but also form a first wind between the support member 2 and the side wall of the battery 3 . At the same time, due to the gap between the support 2 and the side wall of the casing 1, a second air duct 5 can be formed between the plurality of supports 2 and the inner wall of the casing 1, and the battery 3 is installed in the casing. 1 inside, a plurality of supports 2 and a plurality of batteries 3 can divide the installation cavity into a plurality of first air ducts 4 and a plurality of second air ducts 5, and the cell tabs 31 of the batteries 3 are located in the support 2 In the second air duct 5 between it and the inner wall of the housing 1 . When the air source communicated with the housing 1 inputs cooling air toward the installation cavity, the cooling air circulates in the vertical direction and passes through the plurality of first air ducts 4 and the plurality of second air ducts 5 respectively, and then enters the exhaust assembly 6 , when the cooling air circulates in the first air duct 4 , it can simultaneously cool the side walls of the battery 3 and the support 2 on both sides of the first air duct 4 , and when the cooling air circulates in the plurality of first air ducts 4 It has a cooling effect on the two side walls of all batteries 3, which ensures the cooling effect of the battery 3 during the use of the power battery cooling module; when the cooling air circulates in the second air duct 5, it can not only cool the end face of the battery 3 and the battery 3; The side wall of the casing 1 has a cooling effect, and can also effectively cool the cell tabs 31 on the end face of the battery 3, thereby effectively reducing the temperature of the cell tabs 31 when the battery 3 is working, ensuring that the battery 3 The operating temperature is within the normal range. Through the air cooling effect of the cooling air of the air source on the plurality of batteries 3, the forced heat dissipation of the battery tabs 31 and the sides of the batteries 3 can be better achieved, which not only has a good heat dissipation effect, but also makes the battery 3 The temperature distribution is more uniform, which effectively reduces the possibility of thermal runaway of the power battery cooling module. In addition, since the air source usually extracts air from the cabin, the exhaust assembly 6 can discharge the cooling air that has been radiated into the cabin again, which can eliminate the phenomenon of pressure drop in the cabin after the air source is extracted. This ensures that the change of atmospheric pressure in the cabin is small during the working process of the power battery cooling module, which can not only ensure the sensory experience of passengers, but also better complete the entire air cooling and heat dissipation cycle. At the same time, the exhaust assembly 6 can also The cooling air is discharged to the space outside the vehicle. When thermal runaway occurs inside the power battery cooling module, the pressure inside the battery 3 is too large and the pressure relief valve of the battery is opened, so that the harmful gas in the battery enters from the battery 3. In the installation cavity, at this time, the exhaust assembly 6 can close the connection between it and the interior space of the vehicle, and discharge the harmful gas and cooling air to the outside of the vehicle, which can better ensure that the harmful gas will not affect the passengers, and can also more quickly. The heat of thermal runaway is discharged to the outer space of the vehicle, which can achieve better emergency treatment of thermal runaway.

According to the power battery cooling module of this embodiment, the support member 2 can form a plurality of first air ducts 4 and second air ducts 5 in the installation cavity, and the cooling air input from the air source into the installation cavity can pass through the first air duct 4 When it circulates with the second air duct 5, it has a good cooling effect on the side wall, the end of the battery 3 and the battery tab 31, and the cooling air can be discharged from the exhaust assembly 6 to the interior space and the exterior space of the vehicle. , which can not only ensure the stability of the atmospheric pressure in the cabin, but also facilitate the discharge of harmful gases into the space outside the vehicle when the battery 3 is thermally out of control, thereby better ensuring the safety of users.

In some embodiments, as shown in FIG. 1 and FIG. 2 , the plurality of batteries 3 are divided into two groups of battery packs, each group of battery packs includes a plurality of batteries 3 spaced along the length direction of the casing 1 , and the two groups of battery packs They are arranged at intervals in the width direction of the casing 1 , and the cell tabs 31 of the two groups of battery packs are respectively connected to two opposite inner walls of the casing 1 .

It can be understood that, through the above structural arrangement, it is not only convenient to install a plurality of batteries 3 in the housing 1, but also to draw electricity from a plurality of batteries 3 at the same time, which can not only improve the output power of the power battery cooling module, but also The heat dissipation effect of the two battery packs is ensured by the arrangement of the first air duct 4 and the second air duct 5 .

In some embodiments, as shown in FIG. 1-FIG. 3, the power battery cooling module further includes a heat insulating member 7, one end of each battery pack is abutted on the side wall of the heat insulating member 7, and the The other end is provided with cell tabs 31 , and the cell tabs 31 of the two sets of battery packs are respectively connected to two opposite inner walls of the casing 1 .

It can be understood that the heat insulating member 7 can not only have a heat insulating effect on the plurality of batteries 3 of the two battery packs, but also can play a buffering and electrical insulating effect, so as to ensure the reliability of the power battery cooling module.

For example, the heat insulating member 7 is an elastic structure, the thickness of the heat insulating member 7 is 1mm-5mm, and the heat insulating member 7 can be made of EPDM (Ethylene Propylene Diene Monomer, EPDM rubber) foam or silicon foam, etc. Made of materials with thermal, buffering and insulating effects.

In some embodiments, as shown in FIG. 2 and FIG. 3 , the plurality of supports 2 are divided into two groups of supports, and the groups of supports include a plurality of supports 2 distributed at intervals along the length direction of the housing 1 , and the two groups One end of the support group is abutted on the two side walls of the heat insulating element 7 respectively, and there is a gap between the other end of the two support groups and the two independent side walls of the housing 1 which are disposed opposite to each other.

It can be understood that the arrangement of the two support groups can better adapt to the power battery cooling module with the heat insulating member 7, thereby ensuring the reliable arrangement of the plurality of first air ducts 4 in the installation cavity,

In some embodiments, as shown in FIG. 1 and FIG. 2 , the housing 1 includes two end plates 11 , two side plates 12 and a plurality of bus bars 13 , and the two side plates 12 are provided with a plurality of mounting holes, Each bus bar 13 is connected to the cell tabs 31 of one battery 3 , and each bus bar 13 is embedded in a mounting hole.

It can be understood that the end plate 11 and the side plate 12 can form a safe and reliable housing 1, and the bus bar 13 can be connected to the cell tabs 31 so as to facilitate the extraction of electricity from the plurality of batteries 3. After the tabs 31 are connected, the bus bar 13 can be matched with the side plate 12 when the battery 3 is installed in the installation cavity, and the bus bar 13 can be firmly connected to the side plate 12 under the limitation of the battery 3 .

For example, the cell tabs 31 are connected to the busbar by welding, and the end plate 11 and the side plate 12 are connected by adhesive bonding, or are connected by a snap connection structure and a connection structure such as screws and bolts to achieve a stable connection.

In some embodiments, the cover plate can be made of mica, and the thickness of the cover plate is 2mm-8mm.

In some embodiments, the side panels 12 are fabricated from heat and impact resistant materials.

For example, the heat and impact resistant material may be Phlogopite, Kevlar.

It can be understood that, through the above structural arrangement, when the thermal runaway of the battery 3 occurs, the side plate 12 can bear the impact of the high-heat and high-pressure gas leaked from the interior of the battery 3 during the thermal runaway, so as to ensure the stability of the casing 1 and effectively reduce the thermal runaway. Risk of loss of control.

In some embodiments, the support member 2 can be a plate body. The plate body can be wavy.

In some embodiments, as shown in FIG. 3 , the projection of the support 2 on the bottom wall of the housing 1 is S-shaped.

It can be understood that, through the above structural arrangement, the support member 2 can not only have a better supporting effect on the battery 3, but also can increase the cross-sectional area of the first air duct 4 and improve the cooling flow in the first air duct 4. The flow rate of the air is increased to maximize the contact area between the cooling air and the side surface of the battery 3 , thereby improving the cooling effect of the cooling air on the battery 3 .

In other embodiments of the present application, the projection of the support member 2 on the bottom wall of the housing 1 can also be formed as a plurality of spaced-distributed protrusion and groove structures, or formed as a plurality of sequentially connected triangular structures. The specific structure of the component 2 can be determined according to actual requirements, as long as the flow rate of the cooling air in the first air duct 4 can be increased.

In some embodiments, the thickness of the support member 2 is 0.2 mm-1 mm, and the support member 2 can be made of materials such as PP/PE-TD40.

In some embodiments, as shown in FIG. 4 , the exhaust assembly 6 includes a communication pipe 61 , a first exhaust pipe 62 , a second exhaust pipe 63 and a regulating member 64 . One end of the communication pipe 61 communicates with the installation cavity. One end of the first exhaust pipe 62 is communicated with the other end of the communication pipe 61 , and the other end of the first exhaust pipe 62 is communicated with the vehicle interior space. One end of the second exhaust pipe 63 is communicated with the other end of the communication pipe 61 , and the other end of the second exhaust pipe 63 is communicated with the outside space. The adjusting member 64 is provided at the connection between the communication pipe 61 and the first exhaust pipe 62 , and the adjusting member 64 is used to adjust the communication area between the communication pipe 61 and the first exhaust pipe 62 and the second exhaust pipe 63 respectively.

It can be understood that, through the structural arrangement of the communication pipe 61 , the first exhaust pipe 62 , the second exhaust pipe 63 and the adjusting member 64 , the adjustment of the exhaust assembly 6 from the installation cavity to the vehicle interior space can be better achieved. The flow rate of the cooling air output from the outside space makes it easy for the adjusting member 64 to output cooling air with different flow rates to different positions according to the actual situation, which not only ensures the safe use of the power battery cooling module, but also ensures the safety of the user.

In some specific embodiments, the wall thickness of the communication pipe 61 , the first exhaust pipe 62 , and the second exhaust pipe 63 is 1 mm-3 mm, and the communication pipe 61 , the first exhaust pipe 62 , and the second exhaust pipe 63 have a thickness of 1 mm to 3 mm. 63 can be made of HDPE (High Density Polyethylene, high density polyethylene) or PPE-TD and other materials, has good strength and durability, and is not easy to react with cooling air.

In some embodiments, the first exhaust pipe 62 is connected with the interior trim panel of the vehicle body to discharge cooling air into the vehicle interior; the second exhaust pipe 63 is communicated with the gap between the interior trim panel of the vehicle body and the sheet metal of the vehicle body, thereby Cooling air can be exhausted from the body vents to the outside of the vehicle.

In some embodiments, as shown in FIG. 4 , the adjusting member 64 includes a driving member 641 and a valve plate 642 . The driving member 641 is provided on the outer wall of the communication pipe 61 and/or the first exhaust pipe 62 . The valve plate 642 is rotatably provided at the connection between the communication pipe 61 and the first exhaust pipe 62 , and the valve plate 642 is connected with the output end of the driving member 641 .

It can be understood that the driving member 641 can adjust the rotation angle of the valve plate 642 according to the actual demand, so as to realize the adjustment of the communication area between the communication pipe 61 and the first exhaust pipe 62 and the second exhaust pipe 63, and then adjust the The flow of cooling air into the interior and exterior spaces of the vehicle.

For example, the power battery cooling module further includes a controller, the controller can receive the real-time temperature of the plurality of batteries 3 , and the controller can control the driving member 641 to drive the valve plate 642 to rotate according to the temperature of the batteries 3 , so as to realize the first exhaust pipe 62 And the air volume control of the second exhaust pipe 63.

In some embodiments, the valve plate 642 is provided with a plurality of reinforcing ribs, and the reinforcing ribs can strengthen the strength of the valve plate 642 , so that the cooling air can still be transmitted from the communication pipe 61 to the first exhaust pipe 62 and the second exhaust pipe 63 . Maintain stability, effectively reducing vibration and noise when the valve plate 642 is impacted by cooling air.

For example, the thickness of the valve plate 642 is 3mm-8mm, and the valve plate 642 can be made of PPE-TD20.

In some embodiments, the driver 641 includes a motor with a feedback function, and the motor can transmit the rotation angle of the valve plate 642 relative to the initial position to the controller, so that the controller can adjust the valve plate 642 according to the real-time rotation angle of the valve plate 642. 642 for control.

Regarding the communication logic and relationship between the controller and the driver 641, even if the specific model and control method of the controller and the driver 641 are not mentioned in this specification, those skilled in the art can also use the technology in the field of automatic control according to the related art. Common sense can achieve the above functions.

The embodiment of the present application also discloses a thermal runaway processing method. The thermal runaway processing method adopts the power battery cooling module described above, and the thermal runaway processing method includes: S1, the controller monitors whether the thermal runaway phenomenon occurs inside the casing 1; S2. In response to the controller monitoring the thermal runaway phenomenon inside the housing 1, the controller increases the intake air volume and the intake speed of the air source toward the installation cavity; S3, the exhaust assembly 6 closes the passage between the installation cavity and the interior space of the vehicle And adjust the connection area between the installation cavity and the outside space to the maximum.

It can be understood that step S2 can effectively speed up the gas circulation speed in the first air duct 4 and the second air duct 5, thereby improving the discharge efficiency of harmful gases and the heat dissipation speed of the battery 3, so as to play a better role in the thermal runaway phenomenon. Step S3 can ensure that the harmful gas will not be discharged to the interior space of the vehicle, and can completely discharge the harmful gas to the exterior space of the vehicle, so as to ensure that the thermal runaway phenomenon can have the best protection effect for the user.

According to the thermal runaway processing method of the embodiment of the present application, due to the power battery cooling module described above, the controller can judge whether thermal runaway occurs according to the temperature of the battery 3 , and then install the battery 3 according to the actual situation inside the battery 3 . The cooling air in the cavity is exhausted from the first exhaust pipe 62 and the second exhaust pipe 63, thereby ensuring rapid cooling of the battery 3 that generates thermal runaway and reliable guarantee for the safety of users.

An example:

The following describes a power battery cooling module and a thermal runaway processing method according to an embodiment of the present application with reference to FIGS. 1 to 4 .

The power battery cooling module of this embodiment includes a casing 1 , a support member 2 , a battery 3 , an exhaust assembly 6 and a heat insulation member 7 .

An installation cavity is formed in the housing 1 , and a gas source communicated with the installation cavity is provided on the top wall of the housing 1 . The housing 1 includes two end plates 11 , two side plates 12 and a plurality of bus bars 13 . The two side plates 12 are provided with a plurality of mounting holes, and each bus bar 13 is connected to a cell tab 31 of a battery 3 For connection, each bus bar 13 is embedded in a mounting hole. The side plates 12 are made of heat-resistant and impact-resistant materials.

The supporting member 2 is arranged in the installation cavity, and there are multiple supporting members 2, and the plurality of supporting members 2 are distributed at intervals along the length direction of the casing 1, and a supporting member 2 is respectively provided on the two opposite inner walls of the casing 1. There are gaps between both ends of the support member 2 and the inner wall of the housing 1 . The plurality of support members 2 are divided into two groups of support members. The support member group includes a plurality of support members 2 distributed along the length direction of the housing 1 at intervals. On each of the side walls, there is a gap between the other end of the two supporting member groups and the two independent side walls disposed opposite to the housing 1 . The projection of the support 2 on the bottom wall of the housing 1 is S-shaped.

There are a plurality of batteries 3 , the cell tabs 31 of each battery 3 are connected to the inner wall of the casing 1 , the batteries 3 are arranged between two adjacent support members 2 , and between the side wall of the battery 3 and the support member 2 A first air duct 4 is formed, a second air duct 5 is formed between the inner wall of the casing 1 and the end of the battery 3 , and the cell tabs 31 are located in the second air duct 5 . The plurality of batteries 3 are divided into two groups of battery packs, each group of battery packs includes a plurality of batteries 3 arranged at intervals along the length direction of the casing 1, the two groups of battery packs are arranged at intervals in the width direction W of the casing 1, and the two groups of batteries The cell tabs 31 of the group are respectively connected to two opposite inner walls of the housing 1 .

The exhaust assembly 6 is arranged on the bottom wall of the housing 1 and communicates with the installation cavity. The exhaust assembly 6 is used to communicate the installation cavity, the interior space and the exterior space, and the exhaust assembly 6 is connected to the interior space and the exterior space. The connection area is adjustable. The exhaust assembly 6 includes a communication pipe 61 , a first exhaust pipe 62 , a second exhaust pipe 63 and a regulating member 64 . One end of the communication pipe 61 communicates with the installation cavity. One end of the first exhaust pipe 62 is communicated with the other end of the communication pipe 61 , and the other end of the first exhaust pipe 62 is communicated with the vehicle interior space. One end of the second exhaust pipe 63 is communicated with the other end of the communication pipe 61 , and the other end of the second exhaust pipe 63 is communicated with the outside space. The adjusting member 64 is provided at the connection between the communication pipe 61 and the first exhaust pipe 62 , and the adjusting member 64 is used to adjust the communication area between the communication pipe 61 and the first exhaust pipe 62 and the second exhaust pipe 63 . The adjusting member 64 includes a driving member 641 and a valve plate 642 . The driving member 641 is provided on the outer wall of the communication pipe 61 and/or the first exhaust pipe 62 . The valve plate 642 is rotatably provided at the connection between the communication pipe 61 and the first exhaust pipe 62 , and the valve plate 642 is connected with the output end of the driving member 641 .

One end of each battery pack is abutted on the side wall of the heat insulator 7 , and the other end of each battery pack is provided with cell tabs 31 . The two inner walls arranged opposite to each other are connected.

A thermal runaway processing method, the thermal runaway processing method adopts the power battery cooling module described above, and the thermal runaway processing method includes: a controller detects that a thermal runaway phenomenon occurs inside the casing 1; the controller raises the air source toward the installation cavity. The air intake volume and air intake speed are adjusted; the exhaust assembly 6 closes the passage between the installation cavity and the interior space and adjusts the communication area between the installation cavity and the exterior space to the maximum.

The embodiment of the present application proposes a power battery cooling module, which can improve the cooling effect of the battery and can better handle the thermal runaway phenomenon.

The embodiment of the present application proposes a thermal runaway processing method, which can improve the cooling rate of the battery when the thermal runaway phenomenon occurs and ensure that the thermal runaway gas inside the module does not leak into the interior space of the vehicle.

FIG. 5 is a schematic structural diagram of an electronic device provided by an embodiment of the present application. As shown in FIG. 5 , the electronic device includes: one or more processors 810 and a memory 820 . A processor 810 is taken as an example in FIG. 5 .

The electronic device may further include: an input device 830 and an output device 840 .

It can be understood that the electronic device may also not include the input device 830 and the output device 840 .

The processor 810 , the memory 820 , the input device 830 and the output device 840 in the electronic device may be connected by a bus or in other ways, and the connection by a bus is taken as an example in FIG. 5 .

The memory 820, as a computer-readable storage medium, can be configured to store software programs, computer-executable programs, and modules. The processor 810 executes a variety of functional applications and data processing by running the software programs, instructions and modules stored in the memory 820 to implement any one of the methods in the foregoing embodiments.

The memory 820 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the electronic device, and the like. In addition, the memory may include volatile memory such as random access memory (Random Access Memory, RAM), and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid-state storage devices.

Memory 820 may be a non-transitory computer storage medium or a transitory computer storage medium. The non-transitory computer storage medium, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some embodiments, memory 820 may optionally include memory located remotely from processor 810, which may be connected to the electronic device via a network. Examples of such networks may include the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The input device 830 may be configured to receive input numerical or character information, and to generate key signal input related to user settings and function control of the electronic device. The output device 840 may include a display device such as a display screen.

This embodiment also provides a computer-readable storage medium storing a computer program, where the computer program is used to execute the above method.

The storage medium may be a non-transitory storage medium.

All or part of the processes in the methods of the above-mentioned embodiments can be completed by executing the relevant hardware through a computer program, and the program can be stored in a non-transitory computer-readable storage medium. , wherein the non-transitory computer-readable storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM), or a RAM, or the like.

In the description of this specification, description with reference to the terms "some embodiments", "other embodiments", etc. means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one implementation of the present application example or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

For those of ordinary skill in the art, according to the concept of the present invention, there will be changes in the specific embodiments and application scope, and the content of this specification should not be construed as a limitation to the present application.

Claims

A power battery cooling module, comprising:

a casing (1), an installation cavity is formed in the casing (1), and a gas source communicated with the installation cavity is provided on the top wall of the casing (1);

A support member (2), the support member (2) is provided in the installation cavity, the support member (2) is plural, and the plurality of support members (2) are along the surface of the housing (1). Distributed at intervals in the longitudinal direction, one support member (2) and the other support member (2) of the plurality of support members (2) are respectively provided on two opposite inner walls of the housing (1), and many There is a gap between the two ends of each of the supporting members (2) and the inner wall of the housing (1);

A battery (3), a plurality of the batteries (3), the cell tabs (31) of each of the batteries (3) are connected to the inner wall of the casing (1), and each of the batteries (3) ) is provided between two adjacent support members (2) among the plurality of support members (2), and a side wall of each battery (3) and the support member (2) are formed with A first air duct (4), a second air duct (5) is formed between the inner wall of the casing (1) and the ends of the plurality of batteries (3), the battery core tabs (31) is located in the second air duct (5);

An exhaust assembly (6), the exhaust assembly (6) is provided on the bottom wall of the housing (1) and communicated with the installation cavity, and the exhaust assembly (6) is used to communicate with the The installation cavity, the vehicle interior space and the vehicle exterior space, and the communication area between the exhaust assembly (6) and the vehicle interior space and the exhaust assembly (6) and the vehicle exterior space are adjustable.
The power battery cooling module according to claim 1, wherein a plurality of the batteries (3) are divided into two groups of battery packs, and each group of the battery packs comprises a plurality of battery packs along the length direction of the casing (1). Batteries (3) arranged at intervals, two sets of battery packs are arranged at intervals in the width direction of the casing (1), and the battery tabs (31) of the two sets of battery packs are respectively connected to the casing The two oppositely arranged inner walls of the body (1) are connected.
The power battery cooling module according to claim 2, further comprising a heat insulating member (7), and one end of each group of the battery pack abuts on the side of the heat insulating member (7). On the wall, the other end of each battery pack is provided with the battery cell tabs (31).
The power battery cooling module according to claim 3, wherein the plurality of support members (2) are divided into two groups of support members, and each set of the support member groups includes a plurality of support members along the casing (1) The supports (2) are distributed at intervals in the longitudinal direction of the two groups, one ends of the two support groups are respectively abutted on the two side walls of the heat insulation element (7), and the two support groups There is a gap between the other end and the two side walls arranged opposite to the casing (1).
The power battery cooling module according to claim 1, wherein the casing (1) comprises two end plates (11), two side plates (12) and a plurality of bus bars (13), the two The side plate (12) is provided with a plurality of mounting holes, each bus bar (13) is connected to a cell tab (31) of one of the plurality of batteries (3), and each Each of the bus bars (13) is embedded in one of the plurality of installation holes.
The power battery cooling module according to claim 5, wherein the two side plates (12) are made of heat-resistant and impact-resistant materials.
The power battery cooling module according to claim 1, wherein the projection of the support member (2) on the bottom wall of the casing (1) is S-shaped.
The power battery cooling module according to claim 1, wherein the exhaust assembly (6) comprises:

a communication pipe (61), one end of the communication pipe (61) is communicated with the installation cavity;

A first exhaust pipe (62), one end of the first exhaust pipe (62) is communicated with the other end of the communication pipe (61), and the other end of the first exhaust pipe (62) is connected to the interior space connectivity;

A second exhaust pipe (63), one end of the second exhaust pipe (63) is communicated with the other end of the communication pipe (61), and the other end of the second exhaust pipe (63) is connected to the External space connectivity;

An adjustment member (64), the adjustment member (64) is provided at the communication place between the communication pipe (61) and the first exhaust pipe (62), and the adjustment member (64) is used to adjust the communication pipe (64). 61) The communication area with the first exhaust pipe (62) and the second exhaust pipe (63) respectively.
The power battery cooling module according to claim 8, wherein the adjusting member (64) comprises:

a driving member (641), the driving member (641) is provided on the outer wall of at least one of the communication pipe (61) and the first exhaust pipe (62);

A valve plate (642), the valve plate (642) is rotatably provided at the connection between the communication pipe (61) and the first exhaust pipe (62), the valve plate (642) is connected to the The output of the driver (641) is connected.
A thermal runaway processing method, wherein the thermal runaway processing method adopts the power battery cooling module according to any one of claims 1-9, and the thermal runaway processing method comprises:

Step 1 (S1), the controller monitors whether thermal runaway occurs inside the casing (1);

Step 2 (S2), in response to the controller monitoring that the thermal runaway phenomenon occurs inside the housing (1), the controller increases the air intake volume and air intake speed of the air source toward the installation cavity;

Step 3 (S3), the exhaust assembly (6) closes the passage between the installation cavity and the vehicle interior space and adjusts the communication area between the installation cavity and the vehicle exterior space to the maximum.
An electronic device comprising:

at least one processor;

a memory, arranged to store at least one program;

The at least one processor is configured to execute the at least one program to implement the thermal runaway processing method of claim 10 .
A computer-readable storage medium storing a computer program, when the computer program is executed by a processor, implements the thermal runaway processing method according to claim 10 .