Thermal management component, box body assembly, battery and electric device

Abstract

The utility model relates to a heat management component (201), a box body assembly (200), a battery (10) and a power utilization device, the heat management component (201) is used for the battery (10), the battery (10) comprises a battery monomer (110), the heat management component (201) comprises a first heat exchange part (210) and a second heat exchange part (220), the first heat exchange part (210) is used for carrying out heat exchange with the battery monomer (110), and the second heat exchange part (220) is used for carrying out heat exchange with the battery monomer (110). And the second heat exchange part (220) is used for carrying out heat exchange with emissions of the battery monomers (110), so that the first heat exchange part (210) of the heat management component (201) can be used for carrying out heat exchange with the battery monomers (110), and the second heat exchange part (220) can also be used for carrying out heat exchange with the emissions of the battery monomers (110). The internal temperature of the battery (10) is prevented from being increased due to over-high temperature of out-of-control gas generated by thermal out-of-control of the battery cells (110), the safety of the battery (10) can be improved, and the potential safety hazard of the battery (10) can be reduced.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to thermal management components, housing assemblies, batteries, and electrical devices. Background Technology

[0002] In related technologies, thermal management components (such as water-cooled plates) are usually used to manage the thermal of individual battery cells. However, traditional batteries have significant safety risks. Summary of the Invention

[0003] Therefore, it is necessary to provide a thermal management component, housing assembly, battery, and electrical device to address the significant safety hazards associated with traditional batteries.

[0004] In a first aspect, this application provides a thermal management component for a battery, the battery including battery cells, wherein the thermal management component includes a first heat exchange section and a second heat exchange section, the first heat exchange section being used to exchange heat with the battery cells, and the second heat exchange section being used to exchange heat with the emissions from the battery cells.

[0005] In the technical solution of this application, the first heat exchange section of the thermal management component can be used to exchange heat with the battery cell, and the second heat exchange section can be used to exchange heat with the emissions of the battery cell. This avoids the increase in the internal temperature of the battery due to the excessively high temperature of the runaway gas generated by the thermal runaway of the battery cell, thereby improving the safety of the battery and reducing the safety hazards of the battery.

[0006] In one embodiment, the thermal management component includes an exhaust space for receiving or guiding emissions from the battery cells, and the exhaust space is configured to allow heat exchange between the emissions from the battery cells and a second heat exchange unit. Thus, by receiving or guiding the emissions from the battery cells via the exhaust space and enabling heat exchange with the second heat exchange unit, thermal management of the emissions from the battery cells can be effectively achieved, preventing an increase in the internal temperature of the battery due to excessively high temperatures of runaway gases generated by thermal runaway of the battery cells.

[0007] In one embodiment, the second heat exchange section includes an interface and a receiving cavity. The receiving cavity is used to contain a heat exchange medium, and the interface is used to connect the receiving cavity and an exhaust space so that the heat exchange medium can reach the exhaust space via the interface. The interface can be used to release the heat exchange medium in the receiving cavity into the exhaust space so that the heat exchange medium can exchange heat with the emissions from the battery cells that are received or guided in the exhaust space.

[0008] In one embodiment, the inlet of the interface is connected to the receiving cavity, and the outlet of the interface faces into the exhaust space. The heat exchange medium in the receiving cavity can be released into the exhaust space via the inlet and outlet of the interface to exchange heat with the emissions from the battery cells received or guided in the exhaust space.

[0009] In one embodiment, the exhaust space extends along a first direction, and the outlet direction of the interface component intersects with the first direction. Thus, the exhaust entering the exhaust space can flow along the first direction and effectively interact with the heat exchange medium released from the outlet of the interface component, allowing for better heat exchange between the exhaust entering the exhaust space and this portion of the heat exchange medium, thereby improving the heat exchange efficiency.

[0010] In one embodiment, the thermal management component further includes a receiving section, which is configured corresponding to a single battery cell so that emissions from the battery cell reach an exhaust space via the receiving section. The outlet direction of the interface component and the receiving direction of the receiving section are intersected. Emissions from the battery cell can reach the exhaust space via the receiving section, where they can exchange heat with the heat exchange medium, thereby reducing the internal temperature of the battery and improving battery safety. Furthermore, the heat exchange medium ejected from the outlet of the interface component does not release towards the battery cell, preventing disturbance caused by the opposing airflows. This portion of the heat exchange medium can effectively converge with the emissions from the battery cell within the exhaust space, thus preventing excessively high internal battery temperatures and effectively reducing safety hazards.

[0011] In one embodiment, the thermal management component includes two interface members disposed adjacent to each other along a second direction; a receiving portion is disposed between the two adjacent interface members along the second direction. Thus, both interface members can release heat exchange medium into the exhaust space, and the emissions from the battery cells can flow into the exhaust space and exchange heat with the heat exchange medium released into the exhaust space, thereby improving the efficiency of heat exchange.

[0012] In one embodiment, the second heat exchange section is provided with multiple interface pieces spaced apart along a third direction. The outlet of each of the multiple interface pieces is arranged along a second direction, and the multiple interface pieces on the same second heat exchange section correspond one-to-one with multiple receiving sections; the second direction intersects with the third direction. Thus, the heat exchange medium in the receiving cavity can be released more quickly into the exhaust space through the multiple interface pieces, and the emissions from the battery cells reach the exhaust space through the receiving sections. Because the outlet direction of the interface pieces and the receiving direction of the receiving sections intersect, this allows the emissions and heat exchange medium to converge well in the exhaust space, while avoiding disturbance between the two airflows. This prevents the internal temperature of the battery from becoming too high and effectively reduces safety hazards.

[0013] In one embodiment, the interface includes a connection channel and a switch. The connection channel is configured to connect the housing cavity and the exhaust space when the switch is turned on. When a battery cell experiences thermal runaway, the switch is turned on, allowing the heat exchange medium in the housing cavity to reach the exhaust space via the connection channel for heat exchange with the emissions in the exhaust space.

[0014] In one embodiment, the switching section is configured as a thermoplastic structure, an electro-switching structure, or a weak structure.

[0015] In one embodiment, the thermal management component includes a thermal management frame, and the thermal management frame and a first heat exchange section enclose an exhaust space; a second heat exchange section is disposed within the exhaust space to exchange heat with the emissions from the battery cell. When a battery cell experiences thermal runaway, the emissions from the battery cell can flow into the exhaust space, and the second heat exchange section within the exhaust space can effectively exchange heat with these emissions.

[0016] In one embodiment, the thermal management component includes an exhaust element for forming an exhaust space, and the first heat exchange section, the second heat exchange section, and the exhaust element are stacked. This facilitates heat exchange between the heat exchange medium released from the second heat exchange section and the emissions discharged into the exhaust space. Simultaneously, the stacked structure effectively reduces the overall volume of the thermal management component.

[0017] In one embodiment, the first heat exchange section and the exhaust component are located on opposite sides of the second heat exchange section. The battery cell extends along the stacking direction and is positioned on one side of the thermal management component, allowing the first heat exchange section to exchange heat with the battery cell, and the heat exchange medium within the receiving cavity of the second heat exchange section to reach the exhaust space through the interface component and exchange heat with the exhaust gases from the battery cell.

[0018] In one embodiment, the exhaust element is located between the first heat exchange section and the second heat exchange section. The battery cell can be positioned on the side of the first heat exchange section opposite to the exhaust element, which can better save the floor space of the battery cell and thermal management components.

[0019] In one embodiment, two second heat exchange sections are stacked together, defining an exhaust space between them. At least one of the second heat exchange sections has an interface on its surface facing the exhaust space. At least one of the two second heat exchange sections releases a heat exchange medium into the exhaust space through the interface to exchange heat with the emissions from the battery cell.

[0020] In one embodiment, there are two first heat exchange sections, each disposed on the outer surface of one of the two second heat exchange sections. A single battery cell can be positioned between the two first heat exchange sections, with the battery cell located on one side of the exhaust space perpendicular to the stacking direction of the second heat exchange sections. Both first heat exchange sections simultaneously exchange heat with the battery cell, and at least one of the two second heat exchange sections releases a heat exchange medium into the exhaust space through an interface to exchange heat with the emissions from the battery cell.

[0021] Secondly, this application also provides a housing assembly, including the aforementioned thermal management components.

[0022] In one embodiment, the thermal management component includes an exhaust vent for forming an exhaust space, and the first heat exchange section, the second heat exchange section, and the exhaust vent are stacked. The thermal management component is configured as at least one of the top structure, bottom structure, side beam, or middle beam of the housing assembly. Thus, the thermal management component can be effectively used for heat exchange between the battery cells and their emissions.

[0023] In one embodiment, two second heat exchange sections are stacked together, defining an exhaust space between them. At least one second heat exchange section has an interface member on its surface facing the exhaust space. The thermal management component is configured as a central beam of the housing assembly. This facilitates simultaneous thermal management of the battery cells and their emissions on both sides of the thermal management component using a single component.

[0024] Thirdly, this application also provides a battery comprising a battery cell and the aforementioned housing assembly, the housing assembly having an electrical cavity in which the battery cell is housed. The electrical cavity is communicatively connected to an exhaust space, allowing the exhaust space to receive or guide emissions from the battery cell.

[0025] In one embodiment, the electrical cavity is located on one side of the thermal management component. This allows the exhaust space to receive or guide the emissions from the battery cells, enabling the second heat exchange section of the thermal management component to effectively exchange heat with the emissions from the battery cells. Additionally, the first heat exchange section of the thermal management component can also effectively exchange heat with the battery cells.

[0026] In one embodiment, the thermal management component is configured as the central beam of the housing assembly, and multiple electrical cavities are distributed on both sides of the thermal management component. Thus, a single battery cell can be housed within each electrical cavity, and a single thermal management component can be used to manage the thermal of the battery cells on both sides and their emissions, resulting in a more compact overall battery structure.

[0027] Fourthly, this application also provides a battery, which includes multiple battery cells and the aforementioned thermal management components.

[0028] In one embodiment, the housing assembly is the aforementioned thermal management component. The thermal management component further includes a receiving section, which is configured to correspond to a single battery cell, allowing emissions from the battery cell to reach the exhaust space via the receiving section. The outlet direction of the interface component and the receiving direction of the receiving section are intersected. The battery cell includes a pressure relief mechanism, which is positioned towards the receiving section. Therefore, emissions from the battery cell's pressure relief mechanism can more effectively flow into the exhaust space through the receiving section.

[0029] In one embodiment, there are multiple battery cells and multiple receiving units, and the pressure relief mechanisms of the multiple battery cells are configured to correspond one-to-one with the multiple receiving units. Thus, the exhaust gases ejected from the pressure relief mechanisms of the battery cells can flow into the exhaust space through the corresponding receiving units.

[0030] Fifthly, this application also provides an electrical device, which includes the aforementioned battery. Attached Figure Description

[0031] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0032] Figure 1 A schematic diagram of the structure of a vehicle according to an embodiment of this application is shown;

[0033] Figure 2 A schematic diagram of the battery structure in one embodiment of this application is shown;

[0034] Figure 3 A side sectional view (first perspective) of a battery according to an embodiment of this application is shown;

[0035] Figure 4 It shows Figure 3 An enlarged view of point A;

[0036] Figure 5 A side sectional view (second perspective) of a battery according to an embodiment of this application is shown;

[0037] Figure 6 It shows Figure 5 An enlarged view of point B;

[0038] Figure 7 A schematic diagram of the structure of the thermal management component 201 and the receiving section in one embodiment of this application is shown;

[0039] Figure 8 A top view of the thermal management component 201 and the receiving section in one embodiment of this application is shown;

[0040] Figure 9 A partial structural schematic diagram of a battery according to an embodiment of this application is shown;

[0041] Figure 10 A schematic diagram of the structure of the first heat exchange section in one embodiment of this application is shown;

[0042] Figure 11A schematic diagram of the structure of a thermal management plate according to an embodiment of this application is shown.

[0043] 1. Vehicle; 10. Battery; 100. Battery module; 110. Battery cell; 111. Pressure relief mechanism; 200. Housing assembly; 201. Thermal management component; 210. First heat exchange section; 2101. Heat exchange hole; 211. Exhaust port; 2111. First exhaust port; 2112. Second exhaust port; 212. Heat exchange chamber; 213. Fluid inlet pipe; 214. Fluid outlet pipe; 215. Thermal management plate; 220. Second Heat exchange section; 221, interface component; 2211, outlet; 222, receiving cavity; 231, thermal management frame; 231, thermal management frame; 2311, exhaust space; 232, battery frame; 2321, electrical cavity; 2322, gas collection cavity; 2323, outer frame; 2324, inner frame; 233, pressure relief component; 240, receiving section; 241, vent; 242, receiving cavity; 20, controller; 30, motor. Detailed Implementation

[0044] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0046] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0047] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0048] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0049] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0050] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0051] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0052] A battery is a collection of cells. In a battery, thermal management components (such as water-cooled plates) are typically used to manage the thermal properties of individual cells. However, traditional batteries have significant safety risks.

[0053] The inventors of this application discovered through research that the reason why traditional batteries pose significant safety hazards is that traditional batteries do not have a cooling treatment for the runaway gas generated when a battery cell experiences thermal runaway. This results in the runaway gas being too hot, increasing the internal temperature of the battery and thus leading to significant safety hazards in traditional batteries.

[0054] To address the significant safety hazards of traditional batteries, the inventors of this application, through in-depth research, designed a thermal management component. This component can manage the thermal properties of individual battery cells and the emissions generated during thermal runaway of individual battery cells, preventing excessively high internal temperatures and effectively reducing battery safety hazards.

[0055] The thermal management components, housing assemblies, and battery cells / batteries disclosed in this application can be used, but are not limited to, in electrical devices such as vehicles, ships, or aircraft. These electrical devices can be, but are not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc., while spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc. A power system for this electrical device can be constructed using the battery cells / batteries disclosed in this application, thus facilitating the provision of electrical power to the device.

[0056] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle 1 provided in some embodiments of this application. Vehicle 1 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery 10 is installed inside vehicle 1, and the battery 10 can be located at the bottom, front, or rear of vehicle 1. The battery 10 can be used to power vehicle 1; for example, the battery 10 can serve as the operating power source for vehicle 1. Vehicle 1 may also include a controller 20 and a motor 30. The controller 20 is used to control the battery 10 to supply power to the motor 30, for example, to meet the power needs of vehicle 1 during starting, navigation, and driving.

[0057] In some embodiments, the battery 10 can not only serve as the operating power source for the vehicle 1, but also as the driving power source for the vehicle 1, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1.

[0058] Figure 2 A schematic diagram of the structure of the battery 10 in one embodiment of this application is shown.

[0059] Please see Figure 2 Referring to reference 3, an embodiment of this application provides a thermal management component 201 for a battery 10. The battery 10 includes a battery cell 110, and the thermal management component 201 includes a first heat exchange section 210 and a second heat exchange section 220. The first heat exchange section 210 is used for heat exchange with the battery cell 110, and the second heat exchange section 220 is used for heat exchange with emissions from the battery cell 110.

[0060] The first heat exchange section 210 refers to a component capable of thermal management of the battery cell 110. The first heat exchange section 210 may have a heat exchange cavity 212 for containing the heat exchange medium, so as to use the heat exchange cavity 212 to perform thermal management of the battery cell 110; it may also have a heat exchange cavity 212 for containing the heat exchange medium and corresponding one-to-one with the battery cell 110, so as to use the heat exchange medium in the heat exchange cavity 212 to perform thermal management of the corresponding battery cell 110; no specific limitation is made here.

[0061] The first heat exchange section 210 can directly or indirectly contact the battery cell 110 to exchange heat with the battery cell 110.

[0062] The second heat exchange section 210 can be disposed on one side of the battery cell 110 and can exchange heat with the emissions from the battery cell 110. For example, the emissions from the battery cell 110 can be collected in a space, and heat exchange can be performed with the emissions from the battery cell 110 using the sidewall of that space. Alternatively, the emissions from the battery cell 110 can be collected in a space, and the second heat exchange section 210 can release a heat exchange medium into that space to exchange heat with the emissions from the battery cell 110. This application is not limited to these methods.

[0063] The emissions from the battery cell 110 may be high-temperature substances ejected from the pressure relief mechanism 111 of the battery cell 110, including gases and solids carried by the gases.

[0064] Therefore, the first heat exchange section 210 of the thermal management component 201 can be used to exchange heat with the battery cell 110, and the second heat exchange section 220 can be used to exchange heat with the emissions of the battery cell 110. This avoids the internal temperature of the battery 10 from being increased due to the excessively high temperature of the runaway gas generated by the thermal runaway of the battery cell 120, thereby improving the safety of the battery 10.

[0065] In some embodiments, please refer to Figure 3 and Figure 4 The thermal management component 201 includes an exhaust space 2311 for receiving or guiding the emissions from the battery cell 110, and the exhaust space 2311 is configured to allow the emissions from the battery cell 110 to exchange heat with the second heat exchange section 220.

[0066] The second heat exchange section 220 can be independent of the exhaust space 2311, for example, it can be located outside the exhaust space 2311. The second heat exchange section 220 can also be located inside the exhaust space 2311 so that it can be used to exchange heat with the emissions from the battery cells 110 received or guided in the exhaust space 2311.

[0067] The aforementioned "second heat exchange section 220" can be a component containing a heat exchange medium and having an interface 221, so as to release the heat exchange medium into the exhaust space 2311 when the battery cell 110 experiences thermal runaway, so as to exchange heat with the emissions. The "second heat exchange section 220" can also be any other component that can release the heat exchange medium into the exhaust space 2311 when the battery cell 110 experiences thermal runaway by means of the interface 221. The "second heat exchange section 220" can also be a component that can directly contact the emissions of the battery cell 110 to exchange heat, and there are no specific limitations here.

[0068] Therefore, the emissions from the battery cell 110 are received or guided through the exhaust space 2311 and can exchange heat with the second heat exchange section 220, which can effectively achieve thermal management of the emissions from the battery cell 110 and avoid increasing the internal temperature of the battery 10 due to the excessively high temperature of the runaway gas generated by the thermal runaway of the battery cell 120.

[0069] In some embodiments, please refer to Figure 4 The second heat exchange section 220 includes an interface member 221 and a receiving cavity 222. The receiving cavity 222 is used to receive the heat exchange medium, and the interface member is used to connect the receiving cavity 222 and the exhaust space 2311 so that the heat exchange medium can reach the exhaust space 2311 via the interface member.

[0070] The interface component 221 may be a nozzle that is connected to the receiving cavity 222 and the exhaust space 2311 respectively, or a pipe that is connected to the receiving cavity 222 and the exhaust space 2311 respectively, or other components that can be used to connect the receiving cavity 222 and the exhaust space 2311, and is not limited thereto.

[0071] The aforementioned interface component 221 may include a component capable of thermally melting to form a crack when the battery cell 110 experiences thermal runaway (e.g., a component containing a thermally molten part is plugged into the outlet 2211 of the interface component 221), or a component capable of forming a crack due to thermal expansion when the battery cell 110 experiences thermal runaway (e.g., a component containing a thermally expanding material is plugged into the outlet 2211 of the interface component 221), or an electro-optical switch that can be in an open state when the battery cell 110 experiences thermal runaway may be provided at the outlet of the interface component 221. It may also be in other forms capable of releasing the heat exchange medium into the exhaust space 2311 in response to thermal runaway of the battery cell 110, without specific limitations.

[0072] The heat exchange medium in the receiving cavity 222 can be released into the exhaust space 211 using the interface 221, so that the heat exchange medium can exchange heat with the emissions of the battery cell 110 received or guided in the exhaust space 2311.

[0073] In some embodiments, the interface 221 is configured to spray a mist heat exchange medium into the exhaust space 2311 when the battery cell 110 experiences thermal runaway. The mist heat exchange medium sprayed into the exhaust space 2311 by the interface 221 can better exchange heat with the emissions flowing into the exhaust space 2311, and the mist heat exchange medium can better be discharged out of the exhaust space 2311 together with the emissions for centralized treatment.

[0074] In some embodiments, the inlet of the interface member 221 is connected to the receiving cavity 222, and the outlet 2211 of the interface member 221 faces into the exhaust space 2311.

[0075] Understandably, the heat exchange medium within the containment cavity 222 can be released into the exhaust space 2311 via the inlet and outlet 2211 of the interface 221. For example, if the interface is a nozzle, the heat exchange medium within the containment cavity 222 can be sprayed into the exhaust space 2311 to exchange heat with the emissions from the battery cell 110 received or guided within the exhaust space 2311.

[0076] In some embodiments, the exhaust space 2311 extends along a first direction F1, and the outlet direction of the interface 221 intersects the first direction.

[0077] The exhaust space 2311 can extend along the first direction F1 by having an exhaust port 211 connected to the exhaust space 2311 located on one side of the exhaust space 2311 along the first direction F1, or by having an exhaust port 211 connected to the exhaust space 2311 located on opposite sides of the exhaust space 2311 along the first direction F1, or by other means that can guide the emissions flowing into the exhaust space 2311 to flow along the first direction F1. No specific restrictions are made here.

[0078] In this way, the exhaust material entering the exhaust space 2311 can flow in the first direction F1 and can well merge with the heat exchange medium released from the outlet of the interface 221, so that the exhaust material entering the exhaust space 2311 can better exchange heat with this part of the heat exchange medium, thereby improving the heat exchange effect.

[0079] In some embodiments, the thermal management component 201 further includes a receiving section 240, which is configured to correspond to the battery cell 110 so that the emissions from the battery cell 110 reach the exhaust space 2311 via the receiving section 240, wherein the outlet direction of the interface 221 and the receiving direction of the receiving section 240 are intersected.

[0080] "The receiving unit 240 is set to correspond to the battery cell 110" can mean that the receiving unit 240 corresponds one-to-one with the battery cell 110, or that one receiving unit 240 corresponds to multiple battery cells 110, and no specific limitation is made here.

[0081] The receiving unit 240 may have a cavity or hole capable of receiving the emissions from the battery cell 110 and communicating with the exhaust space 2311. The receiving unit 240 may also include the following thermally fused structure, weak structure, or electro-switch, so that the emissions from the battery cell 110 can reach the exhaust space 2311 via the receiving unit 240 in the event of thermal runaway of the battery cell 110. No specific limitations are made here.

[0082] Therefore, the emissions from the battery cell 110 can reach the exhaust space 2311 via the receiving part 240. The emissions reaching the exhaust space 2311 can exchange heat with the heat exchange medium reaching the exhaust space 2311, thereby reducing the internal temperature of the battery 10 and improving the safety of the battery 10. In addition, the heat exchange medium ejected from the outlet 2211 of the interface member 221 will not be released towards the battery cell 110, which can avoid disturbance caused by the two airflows spraying against each other. Moreover, this part of the heat exchange medium can effectively converge with the emissions from the battery cell 110 in the exhaust space 2311, which can not only prevent the internal temperature of the battery 10 from becoming too high, but also effectively reduce safety hazards.

[0083] In some embodiments, please refer to Figure 3 and Figure 4 The thermal management component 201 includes two interface pieces 221 arranged adjacent to each other along the second direction F2, and a receiving part 240 is disposed between the two adjacent interface pieces 221 along the second direction F2.

[0084] The phrase "the thermal management component 201 includes two interface pieces 221 arranged adjacently along the second direction F2" can mean that the thermal management component 201 includes two second heat exchange sections 220 spaced apart along the second direction F2, each second heat exchange section 200 having an interface piece 221, and two adjacent interface pieces 221 of the two second heat exchange sections 200 being arranged opposite each other along the second direction F2. Alternatively, it can mean that one second heat exchange section 220 includes two interface pieces 221 arranged adjacently along the second direction F2. No specific limitation is made here.

[0085] Therefore, both interface components 221 can release heat exchange medium into the exhaust space 2311, and the emissions from the battery cell 110 can flow into the exhaust space 2311 and exchange heat with the heat exchange medium released into the exhaust space 2311, thereby improving the efficiency of heat exchange. In addition, the mixed gas after heat exchange can be discharged through the exhaust space 2311 for centralized treatment. In this way, the thermal management component 201 can be used to thermally manage the emissions from the battery cell 110, preventing the internal temperature of the battery 10 from becoming too high and greatly reducing the safety hazards of the battery 10.

[0086] In some embodiments, please refer to Figure 5 and Figure 6The second heat exchange section 220 is provided with a plurality of interface pieces 221 spaced apart along the third direction F3. The outlet 2211 of each of the plurality of interface pieces 221 is provided along the second direction F2. The plurality of interface pieces 221 on the same second heat exchange section 220 correspond one-to-one with the plurality of receiving sections 240. The second direction F2 and the third direction F3 are intersected.

[0087] The third direction F3 can be parallel to or intersect with the first direction F1, and no specific restrictions are imposed here. For example, Figure 5 An example is given where the third direction F3 is parallel to the first direction F1 mentioned above.

[0088] Therefore, the heat exchange medium in the accommodating cavity 222 can be released into the exhaust space 2311 more quickly through multiple interface pieces 221. The emissions from the battery cell 110 reach the exhaust space 2311 through the receiving part 240. Since the outlet direction of the interface piece 221 and the receiving direction of the receiving part 240 are intersecting, this part of the emissions and the heat exchange medium can be well combined in the exhaust space 2311, and the two airflows can be prevented from causing disturbance. This can prevent the internal temperature of the battery 10 from becoming too high, and can also effectively reduce safety hazards.

[0089] In some embodiments, the interface 221 includes a communication channel and a switch, wherein the communication channel is configured to connect the receiving cavity 222 and the exhaust space 2311 when the switch is turned on.

[0090] When the battery cell 110 experiences thermal runaway, the switch is opened, and the heat exchange medium in the housing cavity 222 can reach the exhaust space 2311 through the connecting channel to exchange heat with the emissions in the exhaust space 2311.

[0091] The connecting channel is connected to the inlet and the outlet 2211 of the interface component 221 respectively. The switch can be set at the outlet 2211 of the interface component 221, at the inlet of the interface component 221, or on the connecting channel. No specific restrictions are made here.

[0092] In some embodiments, the switching part is configured as a thermoplastic structure, an electro-switching structure, or a weak structure, or it may be configured as a chemical material structure that can react with flue gas.

[0093] The switch can be a heat-fused structure that blocks the outlet 2211 of the connecting channel or interface 221. The heat-fused structure is configured to melt and form a crack when the temperature of the gas in the exhaust space 2311 reaches a preset temperature, so that the outlet 2211 can be connected to the exhaust space 2311 through the crack.

[0094] The aforementioned "thermal fusion structure" refers to a component that can melt when the temperature of the gas in the exhaust space 2311 reaches a preset temperature. The material of the thermal fusion structure can be a temperature-sensitive material or other materials that can melt when the temperature of the gas in the exhaust space 2311 reaches the preset temperature; no specific restrictions are imposed here. The preset temperature can be set to 60-100℃.

[0095] When the battery cell 110 experiences thermal runaway, the emissions from the battery cell 110 can flow into the exhaust space 2311, causing the hot-melt structure of the outlet 2211 in the exhaust space 2311 to melt and form a crack when it reaches a preset temperature. This allows the heat exchange medium in the interface 221 to be sprayed into the exhaust space 2311 through the crack, thereby reducing the temperature of the high-temperature material ejected from the battery cell 110, preventing the internal temperature of the battery 10 from becoming too high, and reducing the safety hazards of the battery 10.

[0096] In other embodiments, the switch is an electro-optical switch, such as a battery switch provided on the outlet 2211 of the interface 221, which is configured to be in an open state when the battery cell 110 experiences thermal runaway.

[0097] When the battery cell 110 experiences thermal runaway, the emissions from the battery cell 110 can flow into the exhaust space 2311, causing the electro-switch on the outlet 2211 in the exhaust space 2311 to be in the open state. This allows the heat exchange medium in the interface 221 to flow into the exhaust space 2311 through the outlet 2211, thereby reducing the temperature of the emissions from the battery cell 110, preventing the internal temperature of the battery 10 from becoming too high, and reducing the safety hazards of the battery 10.

[0098] In some embodiments, please refer to Figure 3 and Figure 4 The thermal management component 201 includes a thermal management frame 231, the thermal management frame 231 and the first heat exchange part 210 enclosing an exhaust space 2311, and the second heat exchange part 220 is disposed in the exhaust space 2311 to exchange heat with the emissions of the battery cell 110.

[0099] Thus, when the battery cell 110 experiences thermal runaway, the emissions from the battery cell 110 can flow into the exhaust space 2311, and the second heat exchange section 220 in the exhaust space 2311 can effectively exchange heat with these emissions.

[0100] In some other embodiments (not shown in the figures), the thermal management component 201 includes an exhaust member for forming an exhaust space 2311, and the first heat exchange section 210, the second heat exchange section 220 and the exhaust member are stacked.

[0101] The phrase "the first heat exchange section 210, the second heat exchange section 220, and the exhaust component are stacked" can mean that one of the first heat exchange section 210, the second heat exchange section 220, and the exhaust component is placed between the other two. For example, the first heat exchange section 210 and the exhaust component are located on both sides of the second heat exchange section 220, or the exhaust component is located between the first heat exchange section 210 and the second heat exchange section 220. No specific limitation is made here.

[0102] For example, in some embodiments (not shown in the figures), the thermal management component 201 can be disposed on one side of the battery cell 110, the exhaust component is located between the first heat exchange section 210 and the second heat exchange section 220, and the battery cell 110 is disposed on the side of the first heat exchange section 210 away from the exhaust component. This can better save the floor space occupied by the battery cell 110 and the thermal management component 201, and also facilitate the use of the first heat exchange section 210 for thermal management of the battery cell. A heat exchange hole 2101 communicating with the exhaust space 2311 can be provided in the first heat exchange section 210. Thus, the heat exchange medium in the receiving cavity 222 of the second heat exchange section 220 can reach the exhaust space 2311 through the interface component 221. The emissions from the battery cell 110 can flow into the exhaust space 2311 through the heat exchange hole 2101 of the first heat exchange section 210 and exchange heat with the heat exchange medium in the exhaust space 2311 to reduce the temperature of the emissions from the battery cell 110 and improve the safety of the battery 10.

[0103] For example, in some other embodiments (not shown in the figure), the thermal management component 201 includes a first heat exchange section 210, a second heat exchange section 220 and an exhaust component stacked in sequence. That is, the first heat exchange section 210 and the exhaust component are located on both sides of the second heat exchange section 220, so that the battery cell 110 extends along the stacking direction and is located on one side of the thermal management component 201, so that the first heat exchange section 210 can exchange heat with the battery cell 110, and the heat exchange medium in the receiving cavity 222 of the second heat exchange section 220 can reach the exhaust space 2311 through the interface component 221 and exchange heat with the exhaust of the battery cell 110.

[0104] In some embodiments (not shown in the figures), two second heat exchange units 220 are stacked together, and an exhaust space 2311 is defined between the two second heat exchange units 220. At least one second heat exchange unit 211 has an interface member 221 on its surface facing the exhaust space 2311.

[0105] At least one of the two second heat exchange sections 210 releases a heat exchange medium into the exhaust space 2311 through the interface 221 to exchange heat with the emissions from the battery cell 110.

[0106] In this embodiment (not shown in the figure), there are two first heat exchange units 210, which are respectively disposed on the outer surfaces of the two second heat exchange units 220.

[0107] The battery cell 110 may be located between the two first heat exchange sections 210, and the battery cell 110 may be located on one side of the exhaust space 2311 perpendicular to the stacking direction of the second heat exchange section 220. In this way, the two first heat exchange sections 210 simultaneously exchange heat with the battery cell 110, and at least one of the two second heat exchange sections 210 releases a heat exchange medium into the exhaust space 2311 through the interface 221 to exchange heat with the emissions from the battery cell 110.

[0108] An embodiment of this application provides a housing assembly 200, which includes the aforementioned thermal management component 201.

[0109] In some embodiments, the thermal management component 201 includes the aforementioned exhaust element, which forms an exhaust space 2311, and the first heat exchange section 210, the second heat exchange section 220, and the exhaust element are stacked. The thermal management component 201 is configured as at least one of the top structure, bottom structure, side beam, or middle beam of the housing assembly 200.

[0110] The thermal management component 201 is configured as at least one of the top structure, bottom structure, side beam, or middle beam of the housing assembly 200. For example, the thermal management component 201 can be the top structure of the housing assembly 200, with the battery cell 110 disposed on one side of the top structure. In this way, the thermal management component 201 can be used to exchange heat between the battery cell 110 on one side and the emissions from the battery cell. Of course, the thermal management component 201 can also be the bottom structure, side beam, or middle beam, which can be understood in conjunction with the fact that the thermal management component 201 is the top structure of the housing assembly 200; further details will not be provided here. Figure 1 An example is given where the thermal management component 201 is configured as the central beam of the housing assembly 200.

[0111] In some embodiments, two second heat exchange units 220 are stacked together, and an exhaust space 2311 is defined between the two second heat exchange units 220. At least one second heat exchange unit 220 has an interface member 221 on its surface facing the exhaust space 2311, and the thermal management component 201 is configured as the central beam of the housing assembly 200.

[0112] The central beam of the housing assembly 200 can be a horizontal beam or a vertical beam, and battery cells 110 are distributed on both sides of the horizontal beam or vertical beam along its thickness direction.

[0113] Battery cells 110 can be disposed on the top or bottom side of the central beam of the housing assembly 200, thereby allowing at least one interface 221 of the second heat exchange section 210 to release a heat exchange medium into the exhaust space 2311, enabling heat exchange with the emissions from the battery cells 110.

[0114] In some embodiments, a battery 10 provided in one embodiment of this application includes a battery cell 110 and the aforementioned housing assembly 200. The housing assembly 200 has an electrical cavity 2321 in which the battery cell 110 is housed.

[0115] The electrical cavity 2321 can be connected to the exhaust space 2311 so that the exhaust space 2311 can receive or guide the emissions from the battery cell 110.

[0116] "The electrical cavity 2321 is able to communicate with the exhaust space 2311" can mean that the electrical cavity 2321 is connected to the exhaust space 2311 through a hole on the housing assembly 200, or that the housing assembly 200 is provided with the aforementioned thermal fusion structure, weak structure, or electro-switch, so that the electrical cavity 2321 can be connected to the exhaust space 2311 in the event of thermal runaway of the battery cell 110. This application is not limited to this.

[0117] Therefore, the thermal management component 201 of the housing assembly 200 can be used to manage the thermal of the battery cells 110 and the emissions from the battery cells 110 within the housing assembly 200.

[0118] "Battery 10 includes battery cell 110 and the aforementioned housing assembly 200, housing assembly 200 having an electrical cavity 2321, in which battery cell 110 is housed" may include: the electrical cavity 2321 being located on one side of thermal management component 201.

[0119] The electrical cavity 2321 can be connected to the exhaust space 2311 so that the exhaust space 2311 can receive or guide the emissions from the battery cell 110, so that the second heat exchange section 220 of the thermal management component 201 can exchange heat well with the emissions from the battery cell 110. In addition, the first heat exchange section 210 of the thermal management component 201 can also exchange heat well with the battery cell 110.

[0120] "Battery 10 includes battery cell 110 and the aforementioned housing assembly 200, housing assembly 200 having an electrical cavity 2321, in which battery cell 110 is housed" may also include: the electrical cavity 2321 being located on one side of thermal management component 201, the electrical cavity 2321 being able to communicate with exhaust space 2311, and the thermal management component 201 being configured as at least one of the top structure, bottom structure, side beam, or middle beam of housing assembly 200.

[0121] The thermal management component 201 is configured as at least one of the top structure, bottom structure, side beam, or middle beam of the housing assembly 200. For example, the thermal management component 201 can be the top structure of the housing assembly 200, which encloses an electrical cavity 2321 in which the battery cell 110 is housed. Essentially, the thermal management component 201 acts as the top wall of the electrical cavity 2321, allowing for heat exchange between the battery cell 110 and its emissions on one side of the electrical cavity 2321. Of course, the thermal management component 201 can also be the bottom structure, side beam, or middle beam, which can be understood in conjunction with the fact that the thermal management component 201 is the top structure of the housing assembly 200; further details will not be provided here. Figure 1 An example is given where the thermal management component 201 is configured as the central beam of the housing assembly 200.

[0122] Therefore, the heat management component 201 can be used to exchange heat between the battery cell 110 and the battery cell emissions in the electrical cavity 2321 on one side.

[0123] In some embodiments, such as Figure 2 As shown, the housing assembly 200 includes a thermal management component 201 and a battery frame 232, as... Figure 3 As shown, the battery frame 232 and the thermal management frame 2311 of the thermal management component 201 are both connected to the first heat exchange section 210 and are connected along the thickness direction of the first heat exchange section 210. The first heat exchange section 210 and the thermal management frame 231 enclose an exhaust space 2311. The first heat exchange section 210 and the battery frame 232 enclose an electrical cavity 2321 for accommodating the battery cell 110. The first heat exchange section 210 is provided with heat exchange holes 2101 that communicate with the electrical cavity 2321 and the exhaust space 2311 respectively. Figure 4 (As shown).

[0124] When the battery 10 is in use, if a single battery cell 110 experiences thermal runaway, it will eject emissions into the electrical cavity 2321. As these emissions flow into the exhaust space 2311 through the heat exchange holes 2101 of the first heat exchange section 210, they exchange heat with the inner wall of the heat exchange holes 2101, thus cooling the emissions initially. The second heat exchange section 220 exchanges heat with the emissions flowing into the exhaust space 2311, thus cooling the emissions a second time. In this way, the thermal management component 201 can significantly reduce the temperature of the emissions ejected from the single battery cell 110, preventing the internal temperature of the battery 10 from becoming too high and greatly reducing the safety hazards of the battery 10.

[0125] In some embodiments, please refer to Figure 7 and Figure 8 The first heat exchange section 210 includes two heat management plates 215 stacked together, and at least one heat exchange cavity 212 is defined between the two heat management plates 215. One heat management plate 215 is provided with a fluid inlet pipe 213 and a fluid outlet pipe 214 respectively connected to the heat exchange cavity 212. The fluid flowing into the heat exchange cavity 212 from the fluid inlet pipe 213 is used to exchange heat with the battery cell 110.

[0126] The heat exchange chamber 212 is used to contain the heat exchange medium for heat exchange with the battery cell 110. There can be one heat exchange chamber 212 or multiple heat exchange chambers 212 that are defined between two thermal management plates and correspond one-to-one with the battery cell 110. No specific limitation is made here.

[0127] The heat exchange medium can flow into the heat exchange chamber 212 from the fluid inlet pipe 213 and flow out of the heat exchange chamber 212 from the fluid outlet pipe 214, so as to exchange heat with the battery cell 110 using the circulating heat exchange medium.

[0128] In some embodiments, please refer to Figure 3 The battery frame 232 includes an outer frame 2323 with a cavity and an inner frame 2324 located in the cavity of the outer frame 2323. The inner frame 2324 and the corresponding first heat exchange part 210 enclose an electrical cavity 2321. The outer frame 2323, the inner frame 2324 and the corresponding first heat exchange part 210 enclose a gas collection cavity 2322 that communicates with the exhaust space 2311. The outer frame 2323 is provided with a pressure relief component 233. The pressure relief component 233 is configured to enable the gas collection cavity 2322 to communicate with the external environment through the pressure relief component 233 when the gas pressure in the gas collection cavity 2322 reaches a preset pressure value.

[0129] The exhaust gas ejected from the pressure relief mechanism 111 of the battery cell 110 flows into the exhaust space 2311 through the heat exchange hole 2101 and can exchange heat with the heat exchange medium released into the exhaust space 2311. The mixed gas after heat exchange can be discharged into the gas collection chamber 2322 through the exhaust space 2311 for centralized treatment. When the gas pressure in the gas collection chamber 2322 reaches a preset pressure value, the gas collection chamber 2322 is connected to the external environment through the pressure relief component 233, which can be used to relieve pressure, thereby improving the reliability and safety of the battery 10.

[0130] In some embodiments, please refer to Figure 3 The gas collecting cavity 2322 surrounds the electrical cavity 2321. Please refer to [link / reference]. Figure 9 The first heat exchange section 210 is provided with a plurality of exhaust ports 211 arranged circumferentially along the electrical cavity 2321. Each exhaust port 211 is connected to the exhaust space 2311 and the gas collection cavity 2322 respectively.

[0131] "Exhaust port 211" refers to the opening that is connected to the exhaust space 2311 and the gas collecting chamber 2322 respectively and passes through the first heat exchange section 210. The shape of exhaust port 211 is not specifically limited, as long as it is a shape that can be connected to the exhaust space 2311 and the gas collecting chamber 2322 respectively.

[0132] By utilizing multiple exhaust ports 211, the efficiency of the mixed gas flowing into the gas collection chamber 2322 can be improved, thereby enhancing thermal management efficiency.

[0133] "Battery 10 includes battery cell 110 and the aforementioned housing assembly 200, housing assembly 200 having an electrical cavity 2321, in which battery cell 110 is housed" may also include: thermal management component 201 configured as a central beam of housing assembly 200, and multiple electrical cavities 2321 distributed on both sides of thermal management component 201.

[0134] The electrical cavity 2321 can be connected to the exhaust space 2311 so that the emissions from the battery cell 110 can flow into the exhaust space 2311 and then exchange heat with these emissions through the second heat exchange section 220.

[0135] The housing assembly 200 is generally H-shaped, meaning it has double openings at the top and bottom, defining two electrical cavities 2321. The openings are located on the side of each electrical cavity 2321 furthest from the other, allowing the battery cells 110 to be placed within them. For example, the thermal management component 201 includes two first heat exchange sections 210 spaced apart along the thickness direction of the first heat exchange section 210. The housing assembly 200 includes two battery frames 232, each corresponding to one of the first heat exchange sections 210 and located on opposite sides of the thermal management frame 231. Each first heat exchange section 210 and its corresponding battery frame 232 define an electrical cavity 2321. The two heat exchange sections 210 and the thermal management frame 231 enclose an exhaust space 2311.

[0136] like Figure 3 As shown, a battery module 100 can be provided in each electrical cavity 2321, and each battery module 100 includes at least one battery cell 110. The "thermal management component 201 is configured as the central beam of the housing assembly 200" can be understood as a thermal management component 201 being provided between two adjacent battery modules 100.

[0137] Therefore, a single thermal management component 201 can be used to manage the thermal properties of the individual battery cells 110 and the emissions from the individual battery cells 100 in the two battery modules 100, and the overall structure of the battery 10 is more compact.

[0138] Please see Figure 4 The battery cell 110 includes a pressure relief mechanism 111, which is disposed toward the receiving part 240.

[0139] The aforementioned "pressure relief mechanism 111" can be an explosion-proof valve or other components that can release the emissions (gases) ejected by the battery cell 110 into the electrical cavity 2321 when thermal runaway occurs. No specific restrictions are imposed here.

[0140] Therefore, the emissions ejected from the pressure relief mechanism 111 of the battery cell 110 can flow more effectively into the exhaust space 2311 through the receiving part 240.

[0141] In some embodiments (not shown in the figures), there are multiple battery cells 110 and multiple receiving units 240, and the pressure relief mechanisms 111 of the multiple battery cells 110 are configured to correspond one-to-one with the multiple receiving units 240.

[0142] Therefore, the emissions ejected from the pressure relief mechanism 111 of the battery cell 110 can flow into the exhaust space 2311 through the corresponding receiving part 240.

[0143] In other embodiments, each battery module 100 includes a plurality of battery cells 110, and the receiving part 240 is provided with a plurality of vent holes 241 corresponding one-to-one with the battery cells 110. Each vent hole 241 is connected to the electrical cavity 2321 and the exhaust space 2311 respectively.

[0144] Thus, the emissions from the battery cell 110 can reach the exhaust space 2311 through the corresponding vent 241.

[0145] In this embodiment, the receiving part 240 is disposed on the side of the first heat exchange part 210 away from the battery cell 110. The first heat exchange part 210 is provided with a plurality of heat exchange holes 2101 corresponding one-to-one with the battery cell 110. Thus, the pressure relief mechanism 111 of the plurality of battery cells 110 in the same electrical cavity 2321 corresponds one-to-one with the plurality of heat exchange holes 2101 of the adjacent first heat exchange part 210, and the pressure relief mechanism 111 of the plurality of battery cells 110 in the same electrical cavity 2321 also corresponds one-to-one with the plurality of vent holes 241 on the receiving part 240.

[0146] Therefore, when the battery cell 110 experiences thermal runaway, the emissions from the battery cell 110 can flow into the exhaust space 2311 through the corresponding heat exchange hole 2101 and the corresponding vent hole 241 on the receiving part 240, so that the heat exchange medium sprayed into the exhaust space 2311 can exchange heat with these emissions, thereby greatly reducing the temperature of the emissions sprayed out by the battery cell 110, preventing the internal temperature of the battery 10 from becoming too high, and greatly reducing the safety hazards of the battery 10.

[0147] In some embodiments, the battery 10 includes at least two battery modules 100, each battery module 100 includes at least one battery cell 110 disposed in a corresponding electrical cavity 2321, a thermal management component 201 is provided between two adjacent battery modules 100, in which the pressure relief mechanism 111 of the battery cell 110 faces the thermal management component 201 located between the two adjacent battery modules 100, and the corresponding electrical cavities 2321 of the two adjacent battery modules 100 are all connected to the exhaust space 2311 of the thermal management frame 231 of the thermal management component 201.

[0148] When a single battery cell 110 of any battery module 100 experiences thermal runaway, the thermal management component 201 can be used to exchange heat with the airflow injected into the exhaust space 2311 by the battery cell 110. In this way, one thermal management component 201 can be used to manage the thermal of two battery modules 100, effectively preventing the internal temperature of the battery 10 from becoming too high. At the same time, it can also improve the space utilization of the battery 10.

[0149] In this embodiment, in two adjacent battery modules 100, the pressure relief mechanism 111 of all battery cells 110 is directed toward the thermal management component 201 located between the two adjacent battery modules 100.

[0150] In this embodiment, the interface 221 of the thermal management component 201 can spray heat exchange medium into the exhaust space 2311. The heat exchange medium sprayed into the exhaust space 2311 by the interface 221 can exchange heat with the emissions flowing into the exhaust space 2311, and the heat exchange medium and the emissions (gas) can be discharged together out of the exhaust space 2311 for centralized treatment. In this way, the thermal management component 201 can be used to perform thermal management on the two battery modules 100, effectively avoiding excessive internal temperature of the battery 10, and at the same time, improving the space utilization of the battery 10.

[0151] In some embodiments, please refer to Figure 4 The receiving part 240 is disposed in the exhaust space 2311 and is positioned between the pressure relief mechanisms 111 of two adjacent battery cells 110 in two adjacent battery modules 100. The receiving part 240 has a receiving cavity 242 for receiving the emissions from the battery cells 110 and a vent 241 that is connected to the electrical cavity 2321 and the exhaust space 2311 respectively.

[0152] The aforementioned "receiving part 240" refers to a component capable of blocking the pressure relief mechanism 111 of two adjacent battery cells 110 to prevent the emissions from the pressure relief mechanisms 111 of adjacent battery cells 110 from spraying against each other. If the battery module 100 has multiple battery cells 110, the receiving part 240 can be an integral component extending along the arrangement direction of the multiple battery cells 110. Multiple receiving parts 240 can also be provided, spaced apart along the arrangement direction of the multiple battery cells 110 of the same battery module 100, with each receiving part 240 corresponding one-to-one with a pressure relief mechanism 111 of a battery cell 110. Each receiving part 240 blocks the corresponding pressure relief mechanism 111 of the battery cell 110 to prevent the emissions from the pressure relief mechanisms 111 of adjacent battery cells 110 from spraying against each other. Of course, the receiving part 240 can also be any other component capable of preventing the emissions from the pressure relief mechanisms 111 of adjacent battery cells 110 from spraying against each other; no specific limitations are imposed here.

[0153] By using the receiving part 240, it is possible to prevent the emissions ejected from the pressure relief mechanisms 111 of two adjacent battery cells 110 from spraying against each other. The emissions ejected from the pressure relief mechanisms 111 of the battery cells 110 can flow into the exhaust space 2311 through the vent 241, so that the heat exchange medium released into the exhaust space 2311 can exchange heat with these emissions, thereby greatly reducing the temperature of the emissions ejected from the battery cells 110, avoiding excessive internal temperature of the battery 10, and greatly reducing the safety hazards of the battery 10.

[0154] Additionally, the emissions ejected from the pressure relief mechanism 111 of the battery cell 110 flow into the exhaust space 2311 through the heat exchange hole 2101, the receiving cavity 242, and the vent 241, and can exchange heat with the heat exchange medium sprayed into the exhaust space 2311. The mixed gas after heat exchange can be discharged into the gas collection chamber 2322 through the exhaust space 2311 for centralized treatment. When the gas pressure in the gas collection chamber 2322 reaches a preset pressure value, the gas collection chamber 2322 is connected to the external environment through the pressure relief component 233, which can be used to relieve pressure, thereby improving the reliability and safety of the battery 10.

[0155] In some embodiments, please refer to Figure 4 The receiving part 240 and the first heat exchange part 210 surround a receiving cavity 242 with an opening on one side. The opening of the receiving cavity 242 is connected to the electrical cavity 2321 through the heat exchange hole 2101 of the first heat exchange part 210. The receiving cavity 242 is provided with a vent hole 241 connected to the exhaust space 2311 on the side away from the opening.

[0156] Therefore, the exhaust material ejected from the pressure relief mechanism 111 of the battery cell 110 flows into the exhaust space 2311 through the heat exchange hole 2101, the receiving cavity 242 and the vent hole 241, and can exchange heat with the heat exchange medium released into the exhaust space 2311. The mixed gas after heat exchange can be discharged through the exhaust space 2311 for centralized treatment. In this way, the temperature of the exhaust material ejected from the battery cell 110 can be greatly reduced by the thermal management component 201, avoiding excessive internal temperature of the battery 10 and greatly reducing the safety hazards of the battery 10.

[0157] In some embodiments, the vent 241 is staggered from the pressure relief mechanism 111 of the adjacent battery cell 110.

[0158] It can better prevent the emissions from the pressure relief mechanisms 111 of two adjacent battery cells 110 from spraying against each other, and can make the emissions flow into the exhaust space 2311 in a bent shape, so as to reduce the flow rate of the emissions and improve the safety of the battery 10.

[0159] In some embodiments, please refer to Figure 6 Each battery module 100 includes multiple battery cells 110 spaced apart along the third direction F3. The receiving part 240 is provided with multiple vent holes 241 corresponding one-to-one with the battery cells 110 in the adjacent electrical cavity 2321. The vent holes 241 and the pressure relief mechanism 111 of the corresponding battery cells 110 are staggered along the third direction F3.

[0160] Because the vent 241 and the corresponding pressure relief mechanism 111 of the battery cell 110 are staggered along the third direction F3, when the exhaust flows into the exhaust space 2311 through the vent 241, the exhaust can flow into the exhaust space 2311 in a bent shape, which can effectively prevent the exhaust ejected from the pressure relief mechanisms 111 of two adjacent battery cells 110 from spraying against each other.

[0161] In some embodiments, please refer to Figure 4 The thermal management component 201 includes two receiving parts 240 located in the exhaust space 2311. The two first heat exchange parts 210 of the thermal management component 201 correspond one-to-one with the two receiving parts 240. The receiving parts 240 and the corresponding first heat exchange parts 210 enclose a receiving cavity 242 with an opening on one side. The opening of the receiving cavity 242 is connected to the electrical cavity 2321 through the heat exchange hole 2101 of the corresponding first heat exchange part 210. The receiving cavity 242 is provided with a vent hole 241 connected to the exhaust space 2311 on the side away from the opening.

[0162] In some implementations, please refer to Figure 11The vents 241 on the two adjacent receiving parts 240 are staggered along the third direction F3, and are staggered along the third direction F3 with the pressure relief mechanism 111 of the corresponding battery cell 110.

[0163] On the one hand, the vent 241 on the receiving part 240 and the pressure relief mechanism 111 of the corresponding battery cell 110 are staggered along the third direction F3, which can better prevent the emissions ejected from the pressure relief mechanisms 111 of two adjacent battery cells 110 from spraying against each other. On the other hand, since the vent 241 on the two receiving parts 240 are staggered along the third direction F3, it can prevent the emissions flowing into the exhaust space 2311 through the vent 241 on the two receiving parts 240 from spraying against each other and causing disturbance.

[0164] In some embodiments, each battery module 100 includes a plurality of battery cells 110 spaced apart along a third direction F3. The second heat exchange section 220 is provided with a plurality of interface pieces 221 spaced apart along a third direction F3. The outlet 2211 of each interface piece 221 is arranged along a second direction F2. All interface pieces 221 on the same second heat exchange section 220 correspond one-to-one with the pressure relief mechanism 111 of all battery cells 110 of the adjacent battery module 100. The second direction F2 is angled to the third direction F3.

[0165] The second direction F2 and the third direction F3 are perpendicular to each other. The third direction F3 can be parallel to the length direction of the battery 10, and the second direction F2 can be parallel to the width direction of the battery 10. Alternatively, the third direction F3 can be parallel to the width direction of the battery 10, and the second direction F2 can be parallel to the length direction of the battery 10.

[0166] Since all the interface pieces 221 on the same second heat exchange section 220 correspond one-to-one with the pressure relief mechanisms 111 of all the battery cells 110 of the adjacent battery module 100, when a battery cell 110 experiences thermal runaway, the emissions will flow into the electrical cavity 2321 through the pressure relief mechanism 111 of the battery cell 110, and then into the exhaust space 2311 located at the corresponding interface piece 221. This allows the corresponding interface piece 221 to release the heat exchange medium into the exhaust space 2311 when the battery cell 110 experiences thermal runaway. In this way, the interface piece 221 can respond promptly to the corresponding battery cell 110 that has experienced thermal runaway, which can better prevent the internal temperature of the battery 10 from becoming too high and reduce the safety hazards of the battery 10.

[0167] The central axes of the outlet 2211 of the interface component 221 and the pressure relief mechanism 111 of the corresponding battery cell 110 are set at an angle.

[0168] When thermal runaway occurs in the battery cell 110, the corresponding interface 221 can spray heat exchange medium into the exhaust space 2311. Since the outlet 2211 of the interface 221 is set at an angle to the central axis of the pressure relief mechanism 111 of the corresponding battery cell 110, the heat exchange medium sprayed from the outlet 2211 of the interface 221 will not spray towards the pressure relief mechanism 111, and can well converge with the exhaust material sprayed from the pressure relief mechanism 111 in the exhaust space 2311. This can prevent the internal temperature of the battery 10 from becoming too high and prevent the two airflows from causing disturbance, effectively reducing safety hazards.

[0169] In some embodiments, the pressure relief mechanism 111 of the battery cell 110 is bent and points towards the corresponding interface 221.

[0170] This configuration allows the exhaust material ejected from the pressure relief mechanism 111 to flow along a tortuous path to the interface 221, and to converge with the heat exchange medium ejected from the outlet 2211 of the corresponding interface 221 in the exhaust space 2311. This reduces the flow velocity of the exhaust material ejected from the pressure relief mechanism 111 and further prevents disturbance between the two airflows.

[0171] In some embodiments, the thermal management component 201 includes two second heat exchange sections 220 spaced apart along the second direction F2. The orthographic projection of the pressure relief mechanism 111 of the battery cell 110 of the battery module 100 onto the adjacent thermal management component 201 is located between the two second heat exchange sections 220 of the thermal management component 201. Each second heat exchange section 220 is provided with a plurality of interface pieces 221.

[0172] It is understood that the two second heat exchange sections 220 are located on opposite sides of the pressure relief mechanism 111 of the battery cell 110 along the second direction F2, wherein the second direction F2 may be parallel to the width direction of the battery cell 110.

[0173] With this configuration, when thermal runaway occurs in the battery cell 110 of the battery module 100, the exhaust material ejected from the pressure relief mechanism 111 of the battery cell 110 can flow into the exhaust space 2311. The heat exchange medium can be sprayed into the exhaust space 2311 through the interface 221 of the two second heat exchange sections 220, which can improve the heat exchange effect and more effectively reduce safety hazards.

[0174] In other embodiments, a battery 10 provided in one embodiment of this application includes a plurality of battery cells 110 and the thermal management component 201 described above.

[0175] In some embodiments, the battery 10 includes two battery modules 100 and a housing assembly 200, and the housing assembly includes a thermal management component 201 and a thermal management frame 231. The thermal management component 201 is disposed between the two battery modules 100 and includes two first heat exchange sections 210 corresponding to each battery module 100, and a second heat exchange section 220. The housing assembly 200 includes two battery frames 232, which are connected to opposite sides of the thermal management frame 231 along the thickness direction of the first heat exchange section 210. The thermal management frame 231 and the two first heat exchange sections 210 enclose an exhaust space 2311. The first heat exchange section 210 and the adjacent battery frames 232 enclose an electrical cavity 2321 for accommodating the corresponding battery module 100. The first heat exchange section 210 is provided with heat exchange holes 2101 that communicate with the electrical cavity 2321 and the exhaust space 2311 respectively. The second heat exchange section 220 is located in the exhaust space 2311 and is provided with an interface 221. The interface 221 is configured to spray a heat exchange medium into the exhaust space 2311 when the battery cell 110 experiences thermal runaway. The heat exchange holes 2101 on the first heat exchange section 210 correspond one-to-one with the pressure relief mechanism 111 of the corresponding battery cell 110.

[0176] When the battery 10 is in use, the first heat exchange section 210 can contact the battery cells 110 of the battery module 100 to exchange heat with the battery cells 110. If the battery cell 110 experiences thermal runaway, the emissions ejected from the battery cell 110 flow into the exhaust space 2311 through the heat exchange hole 2101. These emissions can exchange heat with the sidewall of the heat exchange hole 2101 to perform a primary cooling treatment on the emissions. Since the interface component 221 is configured to spray a heat exchange medium into the exhaust space 2311 when the battery cell 110 experiences thermal runaway, the interface component 221 can spray a heat exchange medium into the exhaust space 2311. The heat exchange medium sprayed into the exhaust space 2311 by the interface component 221 can exchange heat with the emissions flowing into the exhaust space 2311 to perform a secondary cooling treatment on the emissions. The heat exchange medium and the exhaust gas after secondary cooling can be discharged together outside the exhaust space 2311 for centralized treatment. In this way, the thermal management component 201 can be used to manage the thermal of the battery cells 110 of the two battery modules 100 and the exhaust gas emitted by the battery cells 110, so as to avoid the internal temperature of the battery 10 being too high and greatly reduce the safety hazards of the battery 10.

[0177] An embodiment of this application provides an electrical device including the battery 10 described above.

[0178] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0179] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A thermal management component for a battery (10), the battery (10) comprising a battery cell (110), wherein, The thermal management component (201) includes: The first heat exchange section (210) and the second heat exchange section (220) are used to exchange heat with the battery cell (110) and the second heat exchange section (220) is used to exchange heat with the emissions of the battery cell (110).

2. The thermal management component according to claim 1, wherein, The thermal management component (201) includes an exhaust space (2311) for receiving or guiding the emissions from the battery cell (110), and the exhaust space (2311) is configured to allow the emissions from the battery cell (110) to exchange heat with the second heat exchange unit (220).

3. The thermal management component according to claim 2, wherein, The second heat exchange section (220) includes an interface (221) and a receiving cavity (222); The receiving cavity (222) is used to receive the heat exchange medium; The interface (221) is used to connect the receiving cavity (222) and the exhaust space (2311) so that the heat exchange medium can reach the exhaust space (2311) via the interface (221).

4. The thermal management component according to claim 3, wherein, The inlet of the interface (221) is connected to the receiving cavity (222), and the outlet (2211) of the interface (221) faces into the exhaust space (2311).

5. The thermal management component according to claim 4, wherein, The exhaust space (2311) extends along a first direction, and the outlet direction of the interface (221) intersects the first direction.

6. The thermal management component according to claim 4, wherein, The thermal management component (201) further includes a receiving section (240) configured to correspond to the battery cell (110) so that the emissions from the battery cell (110) reach the exhaust space (2311) via the receiving section (240), wherein the outlet direction of the interface (221) and the receiving direction of the receiving section (240) are intersected.

7. The thermal management component according to claim 6, wherein, The thermal management component (201) includes two interface pieces (221) arranged adjacent to each other along a second direction; Along the second direction, the receiving part (240) is disposed between two adjacent interface members (221).

8. The thermal management component according to claim 6, wherein, The second heat exchange section (220) is provided with a plurality of interface pieces (221) spaced apart along a third direction. The outlet (2211) of each of the plurality of interface pieces (221) is arranged along a second direction, and the plurality of interface pieces (221) on the same second heat exchange section (220) correspond one-to-one with the plurality of receiving sections (240). The second direction is set to intersect with the third direction.

9. The thermal management component according to any one of claims 3-8, wherein, The interface component (221) includes a connection channel and a switch, the connection channel being configured to connect the receiving cavity (222) and the exhaust space (2311) when the switch is turned on.

10. The thermal management component according to claim 9, wherein, The switching unit is configured as a thermoplastic structure, an electro-switching structure, or a weak structure.

11. The thermal management component according to any one of claims 2-10, wherein, The thermal management component (201) includes a thermal management frame (231), and the thermal management frame (231) and the first heat exchange part (210) enclose the exhaust space (2311); The second heat exchange section (220) is located in the exhaust space (2311) to exchange heat with the emissions from the battery cell (110).

12. The thermal management component according to any one of claims 3-10, wherein, The thermal management component (201) includes an exhaust member for forming the exhaust space (2311), and the first heat exchange unit (210), the second heat exchange unit (220) and the exhaust member are stacked.

13. The thermal management component according to claim 12, wherein, The first heat exchange section (210) and the exhaust component are located on both sides of the second heat exchange section (220).

14. The thermal management component according to claim 12, wherein, The exhaust component is located between the first heat exchange section (210) and the second heat exchange section (220).

15. The thermal management component according to any one of claims 3-11, wherein, The second heat exchange section (220) is two and stacked, and the exhaust space (2311) is defined between the two second heat exchange sections (220). At least one of the second heat exchange sections (220) has the interface member (221) on its surface facing the exhaust space (2311).

16. The thermal management component according to claim 15, wherein, There are two first heat exchange units (210) and they are respectively disposed on the outer surfaces of the two second heat exchange units (220).

17. A housing assembly, wherein, The housing assembly (200) includes a thermal management component (201) as claimed in any one of claims 1-16.

18. The housing assembly according to claim 17, wherein, The thermal management component (201) is the thermal management component (201) as claimed in any one of claims 12-13, and the thermal management component (201) is configured as at least one of the top structure, bottom structure, side beam or middle beam of the housing assembly (200).

19. The housing assembly according to claim 17, wherein, The thermal management component (201) is the thermal management component (201) as described in any one of claims 15-16, and the thermal management component (201) is configured as the central beam of the housing assembly (200).

20. A battery, wherein, The battery (10) includes a battery cell (110) and a housing assembly (200) as claimed in any one of claims 17-19, the housing assembly (200) having an electrical cavity (2321) in which the battery cell (110) is housed.

21. The battery according to claim 20, wherein, The enclosure assembly (200) is the enclosure assembly (200) as described in any one of claims 17-18, and the electrical cavity (2321) is located on one side of the thermal management component (201).

22. The battery according to claim 20, wherein, The enclosure assembly (200) is the enclosure assembly (200) as described in claim 19, and the electrical cavities (2321) are multiple and distributed on both sides of the thermal management component (201).

23. A battery, wherein, The battery includes a plurality of battery cells (110) and a thermal management component (201) as claimed in any one of claims 1-16.

24. The battery according to any one of claims 20-23, wherein, The housing assembly (200) is a thermal management component (201) as described in any one of claims 6-16, and the battery cell (110) includes a pressure relief mechanism (111) disposed toward the receiving part (240).

25. The battery according to claim 24, wherein, There are multiple battery cells (110) and multiple receiving units (240). The pressure relief mechanisms (111) of the multiple battery cells (110) are configured to correspond one-to-one with the multiple receiving units (240).

26. An electrical appliance, wherein, The electrical device includes the battery (10) as described in any one of claims 20-25.

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