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

Abstract

A heat management component, a box assembly, a battery and an electric device, the heat management component comprises a heat exchange part and a discharge part, the heat exchange part is used for heat exchange with a battery monomer, the discharge part is used for receiving emissions of the battery monomer, and at least part of the discharge part is in heat conduction connection with the heat exchange part.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a thermal management component, housing assembly, battery, and electrical device. Background Technology

[0002] In related technologies, battery cells need to maintain a suitable operating temperature during operation. Heat exchange components are usually installed to exchange heat with the battery cells. At the same time, in order to facilitate the controllable pressure relief and discharge of battery cells, components are usually installed to guide the discharge of battery cells. However, the overall layout of the components is unreasonable, resulting in low space utilization. Summary of the Invention

[0003] This application aims to address at least one of the technical problems existing in the related art. To this end, this application proposes a thermal management component that can save space, improve space utilization, and ensure the safe and reliable use of individual battery cells.

[0004] This application also proposes a housing assembly having the aforementioned thermal management components.

[0005] This application also proposes a battery having the above-described housing assembly and a battery having the above-described thermal management components.

[0006] This application also proposes an electrical device having the aforementioned battery.

[0007] A thermal management component according to a first aspect of this application includes: a heat exchange section for exchanging heat with a battery cell; and a discharge section for receiving emissions from the battery cell, wherein at least a portion of the discharge section is thermally connected to the heat exchange section.

[0008] The thermal management component according to the embodiments of this application integrates the emission section and the heat exchange section, which has good maintainability and helps to save the space occupied by the thermal management component. When the thermal management component is used in a battery, it can improve the space utilization of the battery. In addition, the heat exchange section can also exchange heat with at least part of the emission section to dissipate the heat of the emission in a timely manner, so as to avoid the heat from being concentrated near the emission location of the battery cell for a long time. At the same time, the heat exchange section can also cool down the emission to reduce the probability of thermal runaway propagation of the battery cell, thereby effectively improving the safety of the battery cell during thermal runaway discharge and ensuring the safe and reliable use of the battery cell.

[0009] In some embodiments, the thermal management component extends into an elongated shape, and the height of the thermal management component is greater than the thickness of the thermal management component, with the heat exchange section and the discharge section arranged along the thickness direction of the thermal management component.

[0010] In some embodiments, along the thickness direction of the thermal management component, the heat exchange portion is disposed outside the discharge portion, so as to be disposed adjacent to the battery cell disposed outside the thickness of the thermal management component relative to the discharge portion.

[0011] In some embodiments, the heat exchange section is provided on both sides of the discharge section.

[0012] In some embodiments, the discharge section includes a discharge chamber configured such that the discharge within the discharge chamber is adapted to exchange heat with the two heat exchange sections; or, the discharge section includes two discharge chambers arranged along the thickness direction, each discharge chamber being configured such that the discharge within the discharge chamber is adapted to exchange heat with the heat exchange section on the corresponding side.

[0013] In some embodiments, the thermal management component includes a body and a heat exchanger disposed on at least one side of the thickness of the body, the heat exchanger being configured as the heat exchange portion, the body being configured alone as the discharge portion, or the body and the heat exchanger jointly defining the discharge portion.

[0014] In some embodiments, the discharge section defines a discharge chamber, the heat exchanger is formed with a first discharge path extending into the discharge chamber, the first discharge path communicating with the discharge chamber, and the discharge chamber being adapted to receive emissions from the battery cell through the first discharge path.

[0015] In some embodiments, the heat exchanger is provided on both sides of the thickness of the body member, each heat exchanger defining a heat exchange cavity, the heat exchange cavity having an inlet and an outlet, so that the heat exchange medium is adapted to flow into the heat exchange cavity through the inlet and out through the outlet, the heat exchange cavities on both sides of the thickness of the body member being connected in series or in parallel.

[0016] In some embodiments, the discharge section defines a discharge chamber, and the discharge section has inlet regions communicating with the discharge chamber on opposite sides. The discharge chamber is adapted to receive emissions from the battery cell through the inlet regions, and the inlet regions on opposite sides are offset in the length direction of the thermal management component.

[0017] In some embodiments, the thermal management component includes a body and heat exchange elements disposed on both sides of the thickness of the body, wherein the heat exchange elements are configured as the heat exchange portion, the body is configured alone as the discharge portion and the inlet is formed on the body; or, when the body and the heat exchange elements together define the discharge portion, the inlet is formed on the heat exchange elements.

[0018] In some embodiments, the heat exchange section defines a heat exchange cavity, and the heat exchange cavity is adapted to contain a heat exchange medium.

[0019] In some embodiments, the heat exchange section has an inlet and an outlet to allow the heat exchange medium to flow through the inlet into the heat exchange chamber and out through the outlet.

[0020] In some embodiments, the heat exchange medium is a gas, a liquid, or a gas-liquid mixture.

[0021] In some embodiments, the heat exchange chamber includes a plurality of heat exchange branch chambers.

[0022] In some embodiments, the heat exchange section has an inlet and an outlet, and each heat exchange branch cavity is connected to the inlet and the outlet respectively.

[0023] In some embodiments, a first heat-conducting element is provided inside the heat exchange cavity.

[0024] In some embodiments, the first heat-conducting element divides the heat exchange cavity into a plurality of heat exchange branch cavities.

[0025] In some embodiments, the thermal management component includes two oppositely disposed outer plates, at least one of the outer plates being configured as the heat exchange section, and the battery cell being adapted to be disposed outside the thickness of the outer plates.

[0026] In some embodiments, the outer side plate is adapted to exchange heat with the cylindrical battery, and the outer side wall of the outer side plate is formed with a first groove adapted to receive at least a portion of the cylindrical battery.

[0027] In some embodiments, the groove surface of the first groove is a curved surface.

[0028] In some embodiments, the outer sidewall of the outer side plate has a plurality of first protrusions, and the first groove is defined between two adjacent first protrusions.

[0029] In some embodiments, the inner sidewall of the outer side plate has a plurality of second protrusions, and a second groove is defined between two adjacent second protrusions. The second protrusions are opposite to the first protrusions along the thickness direction of the heat exchange portion, and the second groove is opposite to the first groove along the thickness direction of the heat exchange portion.

[0030] In some embodiments, the outer wall of the outer side plate is planar.

[0031] In some embodiments, the inner wall surface of the outer side plate has a protrusion, and a heat exchange cavity is formed at the position of the protrusion.

[0032] In some embodiments, the outer side plate has an inlet region, the discharge chamber is adapted to receive emissions from the battery cell through the inlet region, and the outer side plate has an insulating element disposed in the outer peripheral region of the inlet region.

[0033] In some embodiments, a second heat-conducting element is provided between the heat exchange section and the discharge section.

[0034] According to a second aspect embodiment of the present application, the housing assembly defines a receiving cavity for accommodating a single battery cell, and the housing assembly includes a thermal management component according to the first aspect embodiment of the present application described above.

[0035] According to the embodiments of this application, by adopting the above-mentioned thermal management components, the utilization rate of the internal space of the housing assembly can be improved, and the safety of the battery cells can be ensured.

[0036] In some embodiments, the housing assembly further includes a side panel and a partition beam located within the space enclosed by the side panel to divide the space into a plurality of the receiving cavities, and at least one of the side panel and the partition beam is configured as the thermal management component.

[0037] In some embodiments, the partition beam includes a longitudinal beam extending along the length direction of the housing assembly, the longitudinal beam being configured as the thermal management component; or, the partition beam includes a transverse beam extending along the width direction of the housing assembly, the transverse beam being configured as the thermal management component; or, the partition beam includes a longitudinal beam extending along the length direction of the housing assembly and a transverse beam extending along the width direction of the housing assembly, at least one of the longitudinal beam and the transverse beam being configured as the thermal management component.

[0038] In some embodiments, the partition beam is configured as the thermal management component, and the side panel forms a second discharge path communicating with the discharge chamber of the discharge section.

[0039] In some embodiments, the housing assembly includes a top cover, and the thermal management component is disposed on the top cover.

[0040] In some embodiments, the housing assembly includes a base plate, and the thermal management component is disposed on the base plate.

[0041] A battery according to a third aspect of this application includes: a housing assembly, the housing assembly being the same as the housing assembly described in the second aspect of this application; a battery cell disposed in the receiving cavity, and a heat exchange portion disposed on the side of the thermal management component facing the battery cell.

[0042] The battery according to the embodiments of this application, by adopting the above-described housing assembly, helps to improve space utilization and enhance battery safety and reliability.

[0043] In some embodiments, at least one side of the thermal management component in the thickness direction is provided with a battery pack, the battery pack including a plurality of battery cells arranged sequentially along the length direction of the thermal management component, each battery cell individually discharging emissions into the emission section.

[0044] In some embodiments, at least one side of the emission component in the thickness direction is provided with a plurality of battery packs arranged sequentially along the height direction of the emission section, and two battery packs on the same thickness side are facing each other or staggered in the length direction of the emission section.

[0045] In some embodiments, the thickness direction of the battery cell is the same as the height direction of the thermal management component.

[0046] In some embodiments, the number of battery rows on the same side of the thickness of the discharge section is less than the number of battery cells in the same battery row; and / or, the number of battery rows on the same side of the thickness of the discharge section is 1 to 3.

[0047] In some embodiments, the battery further includes a fixing member disposed on the thickness side of the battery pack and engaging with all the outermost battery packs, the fixing member being fixedly connected to the housing assembly.

[0048] In some embodiments, the battery packs are respectively provided on both sides of the thermal management component in the thickness direction.

[0049] In some embodiments, the individual cells of the battery pack on both sides of the thickness are staggered.

[0050] In some embodiments, the side surface of the battery cell facing the thermal management component has a pressure relief structure.

[0051] In some embodiments, a protective member is provided at the pressure relief structure of the battery cell, the protective member covering the pressure relief structure, and the protective member is used to shield the emissions emitted by the battery cell through the pressure relief structure.

[0052] In some embodiments, the battery cell is a cylindrical battery, the outer surface of the heat exchange section has a first groove, and the battery cell is disposed in the first groove.

[0053] In some embodiments, the first groove and the cylindrical battery are shaped to match.

[0054] In some embodiments, the cylindrical battery is fitted to the groove surface of the first groove.

[0055] In some embodiments, the length of the battery cell is greater than 0.6m, the length of the battery cell is greater than the width of the battery cell, and the length of the battery cell is greater than the thickness of the battery cell, and the thermal management component is disposed at one end of the length of the battery cell.

[0056] In some embodiments, the length direction of the thermal management component is perpendicular to the length direction of the battery cell.

[0057] A battery according to a fourth aspect of this application includes: a thermal management component, the thermal management component being the same as the thermal management component according to the first aspect of this application described above; a battery cell, wherein the battery cell is disposed on at least one side of the thermal management component in the thickness direction, and the heat exchange portion is disposed on the side of the thermal management component facing the battery cell.

[0058] The battery according to the embodiments of this application, by employing the above-described thermal management components, facilitates improved battery space utilization and ensures the safety of individual battery cells.

[0059] An electrical device according to a fifth aspect of this application includes a battery according to a third aspect of this application or a battery according to a fourth aspect of this application, the battery being used to provide electrical energy to the electrical device.

[0060] According to the embodiments of this application, by employing the battery described above, the safety of using the electrical device can be improved.

[0061] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0062] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0063] Figure 1 This is a schematic diagram of an electrical device in related technologies;

[0064] Figure 2 yes Figure 1 A schematic diagram of the battery shown;

[0065] Figure 3 This is an assembly diagram of a thermal management component and a battery cell according to an embodiment of this application;

[0066] Figure 4 yes Figure 3 Exploded view of the thermal management components and battery cells shown;

[0067] Figure 5 yes Figure 4A schematic diagram of the battery cell shown;

[0068] Figure 6 yes Figure 4 Another exploded view of the thermal management components and battery cells shown;

[0069] Figure 7 yes Figure 4 An exploded view of the thermal management components shown;

[0070] Figure 8 This is an assembly diagram of a thermal management component and a battery cell according to another embodiment of this application;

[0071] Figure 9 This is an assembly diagram of a thermal management component and a battery cell according to yet another embodiment of this application;

[0072] Figure 10 This is an assembly diagram of a thermal management component and a battery cell according to another embodiment of this application;

[0073] Figure 11 This is an assembly diagram of a thermal management component and a battery cell according to yet another embodiment of this application;

[0074] Figure 12 This is an assembly diagram of a thermal management component and a battery cell according to another embodiment of this application;

[0075] Figure 13 This is an assembly diagram of a thermal management component and a battery cell according to yet another embodiment of this application;

[0076] Figure 14 This is an exploded view of a battery according to an embodiment of this application;

[0077] Figure 15 yes Figure 14 A partial schematic diagram of the housing assembly shown;

[0078] Figure 16 This is a schematic diagram of a housing assembly according to another embodiment of this application;

[0079] Figure 17 This is a schematic diagram of a housing assembly according to another embodiment of the present application;

[0080] Figure 18 This is an exploded view of a battery according to another embodiment of this application;

[0081] Figure 19 yes Figure 18 Another exploded view of the battery shown, with arrows indicating the direction of emission flow;

[0082] Figure 20 yes Figure 19 The diagram shows the exhaust of the thermal management component, with arrows indicating the direction of exhaust flow.

[0083] Figure 21 This is a schematic diagram of the exhaust of a thermal management component according to another embodiment of this application, where the arrows indicate the direction of exhaust flow;

[0084] Figure 22 This is a schematic diagram of an electrical device according to an embodiment of this application.

[0085] Figure label:

[0086] Thermal management component 100, housing assembly 200, battery 300, electrical device 400

[0087] Heat exchange section 1, heat exchange cavity 11A, inlet 11a, outlet 11b, heat exchange branch cavity 111, connecting path 12.

[0088] Discharge section 2, discharge chamber 21, inlet area 21a

[0089] Component 3, heat exchanger 4

[0090] First heat-conducting component 5

[0091] 6. Outer side plate

[0092] First groove 6a, first protrusion 6b, second groove 6c, second protrusion 6d, protrusion 6e

[0093] Side panel 7, space 70, accommodating cavity 70a,

[0094] 8. Divider beam; 81. Horizontal beam; 82. Longitudinal beam; 9. Top cover; 10. Bottom plate.

[0095] Battery cell 11, cylindrical battery 110, bonding part 110a, pressure relief structure 111

[0096] Battery bar 12, end plate 121, heat insulation component 122, fixing component 13, protective component 14. Detailed Implementation

[0097] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0098] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0099] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0100] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0101] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0102] In this application, the battery cell may include lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries, etc., and the embodiments of this application are not limited to these. The battery cell may be cylindrical, flat, cuboid, or other shapes, etc., and the embodiments of this application are not limited to these. Battery cells are generally divided into three types according to their packaging method: cylindrical battery cells, square battery cells, and pouch battery cells, and the embodiments of this application are not limited to these.

[0103] The term "battery" as used in this application refers to a single physical module comprising one or more individual battery cells to provide higher voltage and capacity. For example, the battery mentioned in this application may include a battery module or battery pack. A battery generally includes a housing for encapsulating one or more individual battery cells or multiple battery modules; however, a battery may also not include a housing. The housing prevents liquids or other foreign matter from affecting the charging or discharging of the individual battery cells.

[0104] For example, a battery cell includes a casing, electrode assembly, and electrolyte. The casing houses the electrode assembly and electrolyte. The electrode assembly consists of a positive electrode, a negative electrode, and a separator. The battery cell primarily functions by the movement of metal ions between the positive and negative electrode plates. The positive electrode includes a positive current collector and a positive active material layer. The positive active material layer is coated on the surface of the positive current collector, and the uncoated positive current collector protrudes beyond the coated positive current collector, serving as the positive electrode tab. Taking a lithium-ion battery as an example, the positive current collector can be made of aluminum, and the positive active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium, or lithium manganese oxide, etc. The negative electrode includes a negative current collector and a negative active material layer. The negative active material layer is coated on the surface of the negative current collector, and the negative current collector without the negative active material layer protrudes from the one with the negative active material layer. The negative current collector without the negative active material layer serves as the negative electrode tab. The material of the negative current collector can be copper, and the negative active material can be carbon or silicon, etc. To ensure that a large current can be passed without melting, there are multiple positive electrode tabs stacked together, and there are multiple negative electrode tabs stacked together.

[0105] The separator can be made of PP (polypropylene) or PE (polyethylene), etc. Furthermore, the electrode assembly can be a wound structure or a stacked structure; the embodiments of this application are not limited to these.

[0106] The pressure relief structure on the battery cell mentioned in this application is used to release the gas inside the battery cell when the internal pressure is too high (e.g., due to overcharging), thereby reducing the internal pressure of the battery cell and preventing it from exploding due to excessively rapid pressurization. For example, the pressure relief structure can be an explosion-proof valve, an explosion-proof plate, etc.

[0107] Some electrical appliances 100' (such as Figure 1 As shown), a 300' battery is used (e.g. Figure 2 As shown, the battery 300' provides power to the battery cells. The battery 300' includes a housing 200' and a battery cell 11'. The housing 200' includes an upper shell 201' and a lower shell 202'. In conventional technology, the battery is equipped with a cooling structure for exchanging heat with the battery cells and a discharge structure for receiving the emissions from the battery cells. The cooling structure and the discharge structure are located in different positions and are set up separately, which requires a large amount of space for the cooling structure and the discharge structure, resulting in low utilization of the internal space of the battery. Moreover, when the battery cells are depressurized and discharged, the temperature of the emissions is high, and the heat is easy to accumulate at the discharge position of the battery cells, making the battery cells susceptible to certain thermal effects.

[0108] Based on this, the inventors, after in-depth research, proposed a thermal management component, including a heat exchange section and a discharge section. The heat exchange section is used for heat exchange with the battery cells, and the discharge section is used for receiving the emissions from the battery cells. At least a portion of the discharge section is thermally connected to the heat exchange section.

[0109] In the thermal management component with the above-mentioned structure, the heat exchange section and the emission section are integrated. At the same time, the heat exchange section can dissipate the heat of the emission in a timely manner to avoid the heat from being concentrated near the emission location of the battery cell for a long time. In addition, the heat exchange section can also cool down the emission to reduce the probability of thermal runaway propagation of the battery cell.

[0110] The batteries disclosed in this application can be used, but are not limited to, in electrical devices such as vehicles, ships, or aircraft. The power system of such electrical devices can be composed of batteries disclosed in this application to ensure the safety and reliability of the electrical devices.

[0111] The electrical devices disclosed in this application can be, but are not limited to, automobiles, mobile phones, tablets, laptops, ships, spacecraft, electric toys, and power tools. Vehicles can be gasoline-powered vehicles, natural gas-powered vehicles, new energy vehicles, or rail vehicles; new energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc.; spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc.; electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc.; power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc.

[0112] Hereinafter, with reference to the accompanying drawings, a thermal management component 100 according to a first aspect embodiment of the present application will be described.

[0113] like Figure 3 and Figure 7 As shown, the thermal management component 100 includes a heat exchange section 1 and a discharge section 2. The heat exchange section 1 is used for heat exchange with the battery cell 11, for example, the heat exchange section 1 exchanges heat with the battery cell 11 to remove the heat of the battery cell 11, or the heat exchange section 1 is used to transfer heat to the battery cell 11 to achieve preheating of the battery cell 11, so that the battery cell 11 has a suitable operating temperature to ensure the service life of the battery cell 11. The discharge section 2 is used to receive the discharge from the battery cell 11. The discharge section 2 can collect the discharge from the battery cell 11 to facilitate the storage or centralized discharge of the discharge from the battery cell 11, and prevent particles in the discharge from the battery cell 11 from leaking to other areas, such as the electrical connection area between two battery cells 11, causing insulation failure.

[0114] It is understandable that the emission unit 2 can directly receive the emissions from the battery cell 11 or indirectly receive the emissions from the battery cell 11.

[0115] Wherein, at least a portion of the discharge section 2 is thermally connected to the heat exchange section 1, so that a portion of the discharge section 2 and the heat exchange section 1 exchange heat, or the entire discharge section 2 and the heat exchange section 1 exchange heat; for example, the discharge is the discharge emitted when the battery cell 11 thermally runs away, the discharge is emitted through the discharge position of the battery cell 11 (for example, the discharge position is provided with a pressure relief structure 111), the discharge temperature is high, the heat exchange section 1 and the discharge section 2 exchange heat, so that the heat exchange section 1 can not only dissipate the heat of the discharge in a timely manner through the discharge to avoid the heat from being concentrated near the eruption position of the battery cell 11 for a long time, thereby improving the safety of the battery cell 11, but also cool down the discharge to reduce the probability of the thermal runaway of the battery cell 11 spreading, thereby further effectively improving the safety of the battery cell 11 when it thermally runs away.

[0116] It is understood that at least a portion of the discharge section 2 is thermally connected to the heat exchange section 1, meaning that the discharge section 2 and the heat exchange section 1 are directly or indirectly connected so that at least a portion of the discharge section 2 and the heat exchange section 1 remain relatively stationary, while at least a portion of the discharge section 2 and the heat exchange section 1 have heat exchange. In this case, at least a portion of the discharge section 2 and the heat exchange section 1 are in direct contact to achieve heat exchange, or at least a portion of the discharge section 2 and the heat exchange section 1 are indirectly connected through a heat-conducting element to achieve heat exchange.

[0117] According to the embodiments of this application, the thermal management component 100 integrates the discharge section 2 with the heat exchange section 1, which has good maintainability and helps to save space occupied by the thermal management component 100. When the thermal management component 100 is used in the battery 300, the space utilization rate of the battery 300 can be improved. In addition, the heat exchange section 1 can also exchange heat with at least part of the discharge section 2 to dissipate the heat of the discharge in a timely manner, so as to avoid the heat from being concentrated near the emission position of the battery cell 11 for a long time. At the same time, the heat exchange section 1 can also cool down the discharge to reduce the probability of thermal runaway propagation of the battery cell 11, thereby effectively improving the safety of the battery cell 11 during thermal runaway discharge and ensuring the safe and reliable use of the battery cell 11.

[0118] It is understandable that the discharge section 2 can be used only for storing the emissions from the battery cell 11, and can be used when the emissions from the battery cell 11 are small and the emissions will not accumulate. For example, the thermal management component 100 defines a discharge chamber 21 for receiving the emissions from the battery cell 11, and the discharge chamber 21 has no discharge outlet 11b. Of course, the discharge section 2 can also discharge the emissions after receiving them, and can be used when the emissions from the battery cell 11 are large. For example, the thermal management component 100 defines a discharge chamber 21 for receiving the emissions from the battery cell 11, and the discharge chamber 21 has a discharge outlet 11b so that the emissions in the discharge chamber 21 can be discharged through the discharge outlet 11b.

[0119] In this application, the heat exchange section 1 and the discharge section 2 can be separate components, meaning they are formed independently and can be assembled together; alternatively, the heat exchange section 1 and the discharge section 2 can be an integral component, for example, they can be an integral extruded component. Therefore, the thermal management component 100 can select a suitable processing method according to actual needs.

[0120] In some embodiments, such as Figure 1 and Figure 7 As shown, the thermal management component 100 extends into an elongated shape, then the length of the thermal management component 100 (e.g., Figure 1 The AA' direction in the middle is greater than the height of the thermal management component 100 (e.g., Figure 1(in the CC' direction), and the height of the heat management component 100 is greater than the thickness of the heat management component 100, the heat exchange section 1 and the discharge section 2 are along the thickness direction of the heat management component 100 (for example, in ...). Figure 1 If the arrangement of the heat exchange section 1 and the discharge section 2 is in the BB' direction, the arrangement of the heat exchange section 1 and the discharge section 2 is relatively simple, which facilitates the processing and manufacturing of the thermal management component 100. At the same time, the area of ​​the wall on both sides of the thickness of the thermal management component 100 is relatively large compared with the area of ​​the other wall, which is conducive to increasing the area of ​​the heat exchange section 1 for heat exchange with the battery cell 11, which is conducive to further ensuring the working temperature of the battery cell 11. It is also conducive to increasing the area of ​​the heat exchange section 1 for heat exchange with the discharge section 2, and / or increasing the area of ​​the discharge section 2 for heat exchange with the heat exchange section 1, thereby increasing the heat conduction area of ​​the heat exchange section 1 and the discharge section 2, so as to improve the heat dissipation effect of the heat exchange section 1 on the discharge and improve the cooling effect of the heat exchange section 1 on the discharge.

[0121] It should be noted that, in the description of this application, "and / or" means that there are three parallel options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0122] For example, in Figure 4 and Figure 7 For example, the thermal management component 100 can be extended into a beam structure, which can enhance the structural strength and structural stability of the housing assembly 200 when the thermal management component 100 is used in the housing assembly 200.

[0123] Of course, the arrangement of the heat exchange section 1 and the discharge section 2 is not limited to this; in other embodiments, the heat exchange section 1 and the discharge section 2 are arranged sequentially along the width direction of the thermal management component 100; but it is not limited to this.

[0124] In some embodiments, such as Figures 3-7 As shown, along the thickness direction of the thermal management component 100, the heat exchange section 1 is disposed outside the discharge section 2, and is arranged relative to the discharge section 2 adjacent to the battery cell 11 disposed on the outer side of the thickness of the thermal management component 100. That is, the thermal management component 100 and the battery cell 11 are arranged along the thickness direction of the thermal management component 100, and in the thickness direction of the thermal management component 100, the heat exchange section 1 is closer to the battery cell 11 than the discharge section 2, so as to further improve the heat exchange effect of the heat exchange section 1 on the battery cell 11. Moreover, at this time, the discharge section 2 is located on the side of the heat exchange section 1 away from the battery cell 11, which not only allows the heat exchange section 1 to still exchange heat with the discharge section 2, but also allows the heat exchange section 1 to separate the battery cell 11 from the discharge section 2. Thus, the heat exchange section 1 can separate the battery cell 11 from the discharge, so as to effectively avoid the heat of the discharge from causing adverse thermal effects on the battery cell 11, thereby ensuring the reliable use of the battery cell 11.

[0125] Optionally, such as Figure 7 , Figures 9-12 As shown, heat exchange sections 1 are provided on both sides of the discharge section 2. That is, in the thickness direction of the heat management component 100, heat exchange sections 1 are provided on opposite sides of the discharge section 2, so that the heat exchange sections 1 on both sides can exchange heat with the same discharge section 2. The heat of the discharge section 2 can be dissipated simultaneously through the heat exchange sections 1 on both sides, so as to further ensure the timely dissipation of the heat of the discharged material, thereby helping to further reduce the probability of heat spread.

[0126] It is understandable that when heat exchange sections 1 are provided on both sides of the discharge section 2, battery cells 11 can be provided on both sides of the thickness of the thermal management component 100. Each heat exchange section 1 can separate the discharge section 2 from the corresponding battery cell 11. The battery cells 11 on both sides of the thermal management component 100 can share the same thermal management component 100, so as to simplify the structure of the component such as the battery 300 composed of the thermal management component 100 and the battery cells 11. At the same time, the battery cells 11 on both sides of the thermal management component 100 can also share the same discharge section 2, so as to further simplify the structure.

[0127] Of course, this application is not limited to this; in other optional embodiments, in the thickness direction of the thermal management component 100, a heat exchange part 1 is provided on one of the opposite sides of the discharge part 2. At this time, a battery cell 11 can be provided on one of the thickness sides of the thermal management component 100, and the heat exchange part 1 is closer to the battery cell 11 than the discharge part 2, so the heat exchange part 1 can still separate the discharge part 2 from the battery cell 11.

[0128] In some embodiments, such as Figure 9 As shown, the discharge section 2 includes a discharge chamber 21. The discharge chamber 21 is configured such that the discharge material inside the discharge chamber 21 is suitable for exchanging heat with two heat exchange sections 1. The discharge material received in the discharge chamber 21 can exchange heat with the heat exchange section 1 on one side of the discharge section 2 and also with the heat exchange section 1 on the other side of the discharge section 2, so that the two heat exchange sections 1 can cool the discharge material inside the discharge chamber 21 together, so as to effectively ensure the cooling effect of the heat exchange section 1 on the discharge material and further improve the safety of the battery cell 11 during discharge.

[0129] In some embodiments, such as Figure 10As shown, the discharge section 2 includes two discharge chambers 21, which are arranged along the thickness direction of the thermal management component 100. The two discharge chambers 21 exchange heat with the two heat exchange sections 1 respectively. Each discharge chamber 21 is configured such that the discharge material in the discharge chamber 21 is suitable for exchanging heat with the corresponding heat exchange section 1. That is, in the thickness direction of the thermal management component 100, one discharge chamber 21 is located between one heat exchange section 1 and the other discharge chamber 21, and the discharge material in the one discharge chamber 21 exchanges heat with the one heat exchange section 1. The other discharge chamber 21 is located between the one discharge chamber 21 and the other heat exchange section 1, and the discharge material in the other discharge chamber 21 exchanges heat with the other heat exchange section 1. This ensures that each discharge chamber 21 exchanges heat with the corresponding heat exchange section 1, thereby ensuring the cooling effect of each heat exchange section 1 on the corresponding discharge chamber 21 and further improving the safety of the battery cell 11 during discharge.

[0130] Optionally, when the discharge chamber 21 is configured such that the discharge material in the discharge chamber 21 is suitable for heat exchange with the corresponding heat exchange section 1, if the heat exchange section 1 is formed with a heat exchange chamber 11, and a heat exchange medium is provided in the heat exchange chamber 11, the discharge chamber 21 and the heat exchange chamber 11 can be separated by a heat-conducting cavity wall. Then, one side of the heat-conducting cavity wall faces the wall of the discharge chamber 21, and the other side of the heat-conducting cavity wall faces the wall of the heat exchange chamber 11, so as to ensure the heat exchange effect between the heat exchange medium and the discharge material.

[0131] In some embodiments, such as Figure 7 As shown, the thermal management component 100 includes a body 3 and a heat exchanger 4 disposed on at least one side of the thickness of the body 3. The heat exchanger 4 is constructed as a heat exchange section 1, and the body 3 is constructed alone as a discharge section 2, or the body 3 and the heat exchanger 4 together define the discharge section 2. In this case, the thermal management component 100 has a simple structure and is easy to process and manufacture.

[0132] It is understandable that when a heat exchanger 4 is provided on one of the two sides of the thickness of the main body 3, a battery cell 11 can be provided on the side of the thermal management component 100 corresponding to the side with the heat exchanger 4, so as to ensure the heat exchange effect of the battery cell 11; when heat exchangers 4 are provided on both sides of the thickness of the main body 3, battery cells 11 can be provided on both sides of the thickness of the thermal management component 100, so as to ensure the heat exchange effect of the battery cells 11 on both sides of the thickness at the same time.

[0133] In some embodiments, such as Figure 7 , Figure 20 and Figure 21As shown, the discharge section 2 defines a discharge chamber 21, and the heat exchanger 4 forms a first discharge path 12 extending to the discharge chamber 21. The first path 12 is adapted to communicate with the discharge chamber 21, and the discharge chamber 21 is adapted to receive emissions from the battery cell 11 through the first discharge path 12. Thus, the emissions from the battery cell 11 are indirectly discharged to the discharge chamber 21 through the first discharge path 12 to ensure the smooth reception of the emissions.

[0134] Optionally, the first discharge path 12 can be a connecting port formed on the heat exchanger 4, defining a discharge channel; the first discharge path 12 can also be a clearance opening formed on the heat exchanger 4; or, the first discharge path 12 can also be a weak area formed on the heat exchanger 4, so that when the battery cell 11 discharges emissions, the emissions can break through the weak area and be discharged into the discharge chamber 21. The heat exchanger 4 is partially clearance-designed for heat exchange with the battery cell 11.

[0135] Of course, the discharge chamber 21 can also be adapted to directly receive emissions from the battery cell 11. For example, the heat exchanger 4 includes multiple spaced heat exchange sub-components, and the inlet region 21a of the discharge section 2 is located between two adjacent heat exchange sub-components. In other embodiments, the discharge chamber 21 can also indirectly receive emissions from the battery cell 11 through other components.

[0136] In some embodiments, such as Figure 7 As shown, heat exchange elements 4 are provided on both sides of the thickness of the main body 3. Each heat exchange element 4 defines a heat exchange cavity 11A. The heat exchange cavity 11A has an inlet 11a and an outlet 11b, so that the heat exchange medium is suitable to flow into the heat exchange cavity 11A through the inlet 11a and out through the outlet 11b. Thus, the two heat exchange elements 4 can exchange heat with the same main body 3 to ensure the cooling effect of the main body 3.

[0137] The heat exchange chambers 11A on both sides of the thickness of the main body 3 are connected in series or in parallel. For example, if the heat exchange chambers 11A on both sides of the thickness are connected in series, the heat exchange medium first flows through one heat exchange chamber 11A for heat exchange and then flows through the other heat exchange chamber 11A for heat exchange. Or, if the heat exchange chambers 11A on both sides of the thickness are connected in parallel, the heat exchange medium is distributed to the heat exchange chambers 11A on both sides for heat exchange.

[0138] In some embodiments, the discharge section 2 defines a discharge chamber 21. The discharge section 2 has an inlet region 21a communicating with the discharge chamber 21 on opposite sides. The discharge chamber 21 is adapted to receive emissions from the battery cell 11 through the inlet region 21a. The inlet regions 21a on opposite sides are offset in the length direction of the thermal management component 100. The orthographic projections of the inlet regions 21a on opposite sides along the thickness direction of the thermal management component 100 do not overlap at least partially. This helps to avoid cross-spraying when the corresponding battery cells 11 on opposite sides are emitting emissions, thereby further reducing the probability of heat spread.

[0139] Optionally, the inlet region 21a can be a discharge inlet formed on the discharge section 2, or the inlet region 21a can also be a weak region formed on the discharge section 2, both of which can ensure that the discharge material when the battery cell 11 is depressurized is discharged to the discharge chamber 21 through the inlet region 21a.

[0140] In some embodiments, such as Figure 7 As shown, the thermal management component 100 includes a body 3 and heat exchange components 4 disposed on both sides of the thickness of the body 3. The heat exchange components 4 are configured as heat exchange sections 1.

[0141] In this configuration, the main body 3 is constructed as the discharge section 2, and the inlet 11a is formed on the main body 3; or, when the main body 3 and the heat exchanger 4 jointly define the discharge section 2, the inlet 11a is formed on the heat exchanger 4. Thus, the thermal management component 100 is flexible and convenient to manufacture.

[0142] It is understandable that the main body 3 and the heat exchanger 4 can be separate parts or a single unit.

[0143] In some embodiments, such as Figures 7-12 As shown, the heat exchange section 1 defines a heat exchange cavity 11A, in which a heat exchange medium is adapted to be disposed. The heat exchange medium exchanges heat with the battery cell 11 and with the discharge section 2, so as to utilize at least the sensible heat of the heat exchange medium to meet the heat requirements of the battery cell 11 and the discharge section 2.

[0144] Of course, the structure of the heat exchange section 1 is not limited to this. For example, the heat exchange section 1 and the discharge section 2 together define the heat exchange cavity 11A; for another example, the heat exchange section 1, the discharge section 2 and other parts of the thermal management component 100 together define the heat exchange cavity 11A; for yet another example, the heat exchange section 1 does not have a heat exchange cavity 11A, and there is no heat exchange cavity 11A between the heat exchange section 1 and the discharge section 2, and the heat exchange section 1 can be a refrigeration component such as a semiconductor refrigeration component.

[0145] In some embodiments, such as Figure 7 As shown, the heat exchange section 1 has an inlet 11a and an outlet 11b, which are respectively connected to the heat exchange chamber 11A, so that the heat exchange medium can flow into the heat exchange chamber 11A through the inlet 11a and out through the outlet 11b. It can be seen that the heat exchange medium can flow in the heat exchange chamber 11A, and thus, the heat exchange medium can continuously exchange heat with the discharge section 2 and the battery cells 11 by virtue of its fluidity, carrying away the heat accumulated in the discharge section 2, reducing the probability of heat concentration, and improving safety. For example, when the thermal management component 100 is used in the battery 300, it can reduce the probability of heat concentration in the battery housing assembly 200, improving the safety of the battery 300.

[0146] The positions of the inlet 11a and the outlet 11b can be specifically set according to actual needs. For example, the heat exchange section 1 is extended into a long strip shape, with the inlet 11a located at one end of the length of the heat exchange section 1 and the outlet 11b located at the other end of the length of the heat exchange section 1, so as to ensure the length of the heat exchange path of the heat exchange chamber 11A.

[0147] Optionally, the heat exchange medium can be a gas, a liquid, or a gas-liquid mixture. For example, the heat exchange medium can be water or a refrigerant, but is not limited to these.

[0148] In some embodiments, such as Figure 11 As shown, the heat exchange chamber 11A includes multiple heat exchange branch chambers 111, which helps to increase the contact area between the heat exchange section 1 and the heat exchange medium, thereby enhancing the heat exchange effect of the heat exchange section 1 on the battery cell 11 and the discharge section 2.

[0149] In some embodiments, such as Figure 11 As shown, the heat exchange section 1 has an inlet 11a and an outlet 11b. The inlet 11a and the outlet 11b are respectively connected to the heat exchange chamber 11A. Each heat exchange branch chamber 111 is respectively connected to the inlet 11a and the outlet 11b. Thus, multiple heat exchange branch chambers 111 are arranged in parallel. The heat exchange medium at the inlet 11a is distributed to multiple heat exchange branch chambers 111. The heat exchange medium in each heat exchange branch chamber 111 flows out through the outlet 11b to ensure the heat exchange effect of each heat exchange branch chamber 111.

[0150] Of course, in other embodiments of this application, the multiple heat exchange branch cavities 111 may be arranged in series, or at least two of the multiple heat exchange branch cavities 111 may be arranged in series and at least two of the multiple heat exchange branch cavities 111 may be arranged in parallel.

[0151] In some embodiments, such as Figure 11 As shown, the heat exchange cavity 11A is provided with a first heat-conducting element 5, which is beneficial to increase the contact area between the heat exchange section 1 and the heat exchange medium, thereby enhancing the heat exchange effect of the heat exchange section 1 on the battery cell 11 and the discharge section 2, and at the same time enhancing the structural strength of the heat exchange cavity 11A.

[0152] Optionally, the first heat-conducting element 5 is a metal part; of course, the material of the first heat-conducting element 5 is not limited to this.

[0153] Optionally, in Figure 11 In the example, the first heat-conducting element 5 divides the heat exchange cavity 11A into multiple heat exchange branch cavities 111.

[0154] It is understood that the multiple heat exchange branch cavities 111 divided by the first heat-conducting element 5 can be arranged in series and / or in parallel. Of course, this application is not limited to this; for example, the first heat-conducting element 5 is formed as a flow guide rib.

[0155] In some embodiments, such as Figure 7 and Figure 12 As shown, the thermal management component 100 includes two outer side plates 6 arranged opposite each other. The two outer side plates 6 can be arranged opposite each other along the thickness direction of the outer side plates 6. At least one outer side plate 6 is configured as a heat exchange section 1. The battery cell 11 is adapted to be disposed on the outside of the thickness of the outer side plate 6, so that the outer side plate 6 and the battery cell 11 are relatively close to each other, so as to ensure the heat exchange effect of the outer side plate 6 on the battery cell 11.

[0156] In some embodiments, such as Figure 12 As shown, the outer side plate 6 is adapted to exchange heat with the cylindrical battery 110. The outer side plate 6 has a first groove 6a to accommodate at least a portion of the cylindrical battery 110, which helps to increase the heat exchange area between the outer side plate 6 and the cylindrical battery 110. At the same time, it can save the space occupied by the battery cell 11 and the thermal management component 100 in the thickness direction of the thermal management component 100, and facilitate the improvement of the space utilization rate of the battery 300.

[0157] Optionally, the groove surface of the first groove 6a is curved so that it matches the outer peripheral wall of the cylindrical battery 110, which helps to increase the heat exchange area between the wall of the first groove 6a and the cylindrical battery 110, thereby enhancing the heat exchange effect of the heat exchange section 1 on the cylindrical battery 110. For example, the groove surface of the first groove 6a is an arc surface (such as a circular arc surface).

[0158] In some embodiments, such as Figure 12 As shown, the outer side wall of the outer side plate 6 has a plurality of first protrusions 6b, and a first groove 6a is defined between two adjacent first protrusions 6b. Thus, the outer side wall of the outer side plate 6 extends in a roughly wavy shape along the length direction, which further increases the heat exchange area of ​​the outer side plate 6 and is beneficial to increasing the heat exchange effect of the outer side plate 6 on the battery cell 11.

[0159] It is understood that the outer sidewall of the outer sideplate 6 refers to the side surface of the outer sideplate 6 facing the battery cell 11, and the inner sidewall of the outer sideplate 6 refers to the side surface of the outer sideplate 6 facing away from the battery cell 11.

[0160] In some embodiments, such as Figure 12 As shown, the inner wall of the outer side plate 6 has a plurality of second protrusions 6d, and a second groove 6c is defined between two adjacent second protrusions 6d. The second protrusions 6d and the first protrusions 6b are opposite to each other along the thickness direction of the heat exchange section 1, and the second groove 6c and the first groove 6a are opposite to each other along the thickness direction of the heat exchange section 1. At this time, the inner wall of the outer side plate 6 also extends in a roughly wavy shape along the length direction to further increase the heat exchange area of ​​the heat exchange section 1.

[0161] In some embodiments, such as Figure 2As shown, the outer wall of the outer side plate 6 is a plane, so the outer side plate 6 can provide a good flat surface for the arrangement of battery cells 11, so as to facilitate the regular setting of battery cells 11, and at the same time facilitate the processing of the outer side plate 6.

[0162] In some embodiments, such as Figure 7 As shown, the inner wall surface of the outer side plate 6 has a protrusion 6e, and a heat exchange cavity 11A is formed at the position corresponding to the protrusion 6e, so as to ensure that the outer side plate 6 has good heat exchange efficiency, while facilitating the forming of the heat exchange cavity 11A, and the heat exchange cavity 11A will not interfere with the battery cell 11.

[0163] In some embodiments, such as Figure 7 As shown, the outer side plate 6 has an inlet region 21a, and the discharge chamber 21 is adapted to receive the discharge from the battery cell 11 through the inlet region 21a. The outer side plate 6 has an insulating member provided in the outer peripheral region of the inlet region 21a to achieve insulation between the battery cell 11 and the thermal management component 100. This ensures that when the battery cell 11 discharges discharge, the particles in the discharge will electrically connect the battery cell 11 and the thermal management component 100, causing insulation failure, thereby further ensuring the safe use of the battery cell 11.

[0164] In some embodiments, a second heat-conducting element is provided between the heat exchange section 1 and the discharge section 2 to ensure the heat exchange efficiency between the heat exchange section 1 and the discharge section 2, thereby ensuring the cooling effect of the heat exchange section 1 on the discharge.

[0165] Optionally, the second heat-conducting component can be thermally conductive adhesive or a heat-conducting plate, etc. The material of the heat-conducting plate can be selected according to actual needs, and a material with appropriate thermal conductivity can be selected. For example, the second heat-conducting component can be a metal component.

[0166] It is understandable that when the heat exchange section 1 and the discharge section 2 are integrated, the second heat-conducting element between the heat exchange section 1 and the discharge section 2 can be formed as a heat-conducting wall, and the opposite sides of the heat-conducting wall can be the heat exchange cavity 11A of the heat exchange section 1 and the discharge cavity 21 of the discharge section 2, respectively.

[0167] According to a second aspect embodiment of the present application, the housing assembly 200 defines a receiving cavity 70a for accommodating a battery cell 11, and the housing assembly 200 includes a thermal management component 100 according to the first aspect embodiment of the present application described above.

[0168] According to the embodiments of this application, the housing assembly 200 adopts the above-mentioned thermal management component 100, which facilitates the improvement of the utilization rate of the internal space of the housing assembly 200 and ensures the safe use of the battery cell 11.

[0169] In some embodiments, such as Figure 14 , Figure 18 and Figure 19As shown, the housing assembly 200 includes a side panel 7 and a partition beam 8. The partition beam 8 is located within the space 70 surrounded by the side panel 7 to divide the space 70 into multiple accommodating cavities 70a. A battery cell 11 is provided on one side of the thickness of the side panel 7, and battery cells 11 are provided on both sides of the thickness of the partition beam 8. At least one of the side panel 7 and the partition beam 8 is configured as a thermal management component 100. The thermal management component 100 can correspond to a battery cell 11 in one accommodating cavity 70a or to a battery cell 11 in multiple accommodating cavities 70a. That is, the thermal management component 100 exchanges heat with at least a portion of the battery cells 11 in one accommodating cavity 70a or with at least a portion of the battery cells 11 in multiple accommodating cavities 70a.

[0170] It is evident that the partition beam 8 can divide the space 70 into multiple accommodating cavities 70a and enhance the structural strength of the housing assembly 200. When the partition beam 8 is constructed as a thermal management component 100, it further realizes the multi-purpose function of the thermal management component 100. This allows for a reduction in the number of beam structures in the housing assembly 200 while ensuring the structural strength of the housing assembly 200. This improves the utilization rate of the space 70 in the housing assembly 200, making the structure of each component inside the housing assembly 200 more compact and thus improving the energy density of the battery 300.

[0171] It is understandable that when the enclosure assembly 200 includes the side panel 7 and the partition beam 8, the side panel 7 is constructed as a thermal management component 100 and the partition beam 8 is not a thermal management component 100, or the partition beam 8 is constructed as a thermal management component 100 and the side panel 7 is not a thermal management component 100, or the side panel 7 and the partition beam 8 are each constructed as a thermal management component 100.

[0172] Optionally, the two ends of the partition beam 8 are fixedly connected to the corresponding side panels 7; or, the box assembly 200 includes a top cover 9, and the partition beam 8 is fixedly connected to the top cover 9; or, the box assembly 200 includes a bottom plate 10, and the partition beam 8 is fixedly connected to the bottom plate 10; or, the box assembly 200 includes a top cover 9 and a bottom plate 10, and the partition beam 8 is fixedly connected to at least one of the top cover 9 and the bottom plate 10.

[0173] It is understandable that when the partition beam 8 is constructed as a heat management component 100, if the heat management component 100 defines a heat exchange chamber 11A, and the heat exchange chamber 11A has an inlet 11a and an outlet 11b so that the heat exchange medium flows into the heat exchange chamber 11A through the inlet 11a and flows out of the heat exchange chamber 11A through the outlet 11b, different heat exchange paths or heat management loops can be set according to different objects fixedly connected to the partition beam 8 so as to realize the circulation of the heat exchange medium in the heat exchange path; similarly, when the partition beam 8 is constructed as a heat management component 100, if the heat management component 100 defines a discharge chamber 21, and the discharge chamber 21 has an inlet 11a and an outlet 11b so that the discharge material flows into the discharge chamber 21 through the inlet 11a and flows out of the discharge chamber 21 through the outlet 11b, different discharge paths can be set according to different objects fixedly connected to the partition beam 8 so as to realize the smooth discharge of the discharge material.

[0174] In some embodiments, such as Figure 14 and Figure 15 As shown, the partition beam 8 includes a longitudinal beam 82 extending along the length of the housing assembly 200. The longitudinal beam 82 is configured as a thermal management component 100, and battery cells 11 are respectively provided on both sides of the thickness of the longitudinal beam 82.

[0175] In some embodiments, such as Figure 16 As shown, the partition beam 8 includes a crossbeam 81 extending along the width direction of the housing assembly 200. The crossbeam 81 is constructed as a thermal management component 100, and battery cells 11 are respectively provided on both sides of the thickness of the crossbeam 81.

[0176] In some embodiments, such as Figure 17 As shown, the partition beam 8 includes a longitudinal beam 82 and a transverse beam 81. The longitudinal beam 82 extends along the length direction of the housing assembly 200 and along the width direction of the housing assembly 200. At least one of the longitudinal beam 82 and the transverse beam 81 is configured as a thermal management component 100.

[0177] Therefore, the thermal management component 100 can be formed as a crossbeam 81 and / or a longitudinal beam 82 in the housing assembly 200, which facilitates the flexible arrangement of the housing assembly 200 in order to better meet the heat exchange requirements of the battery cell 11.

[0178] In some embodiments, such as Figure 19 As shown, the partition beam 8 is constructed as a thermal management component 100, and the side panel 7 forms a second discharge path that communicates with the discharge chamber 21 of the discharge section 2. The discharge of the battery cell 11 can flow through the discharge chamber 21 to the second discharge path, which facilitates the final discharge of the discharge. Especially when there is a lot of discharge from the battery cell 11, it can avoid the concentrated accumulation of discharge and ensure the smooth depressurization of the battery cell 11.

[0179] For example, the two ends of the partition beam 8 are fixedly connected to the corresponding side panels 7, and the discharge cavity 21 passes through one of the two ends of the partition beam 8, forming a second discharge path communicating with the discharge cavity 21 at least with the side panel 7 corresponding to the aforementioned one end; or, the discharge cavity 21 passes through both ends of the partition beam 8, and the side panels 7 at both ends of the partition beam 8 form a second discharge path communicating with the discharge cavity 21.

[0180] In other embodiments, such as Figure 21 As shown, when the partition beam 8 is constructed as a thermal management component 100, the housing assembly 200 includes a base plate 10. An exhaust port communicating with the exhaust chamber 21 is formed on the side of the partition beam 8 facing the base plate 10. The base plate 10 forms a second exhaust path communicating with the exhaust port, so that the second exhaust path communicates with the exhaust chamber 21.

[0181] In some embodiments, such as Figure 18 As shown, the housing assembly 200 includes a top cover 9, and a thermal management component 100 is disposed on the top cover 9. The top cover 9 can cover the top side of the accommodating cavity 70a, and the top cover 9 can apply a certain force to the thermal management component 100 to ensure the stable installation of the thermal management component 100. For example, the thermal management component 100 can be fixedly connected to the top cover 9 (e.g., the thermal management component 100 and the top cover 9 are fixed by threaded fasteners); of course, the thermal management component 100 can also be directly or indirectly mated with the top cover 9.

[0182] In some embodiments, such as Figure 18 As shown, the housing assembly 200 includes a base plate 10, and a thermal management component 100 is disposed on the base plate 10. The base plate 10 can be located on the lower side of the receiving cavity 70a to directly or indirectly support the battery cell 11. The base plate 10 can apply a certain force to the thermal management component 100 to ensure the stable installation of the thermal management component 100. For example, the thermal management component 100 can be fixedly connected to the base plate 10 (e.g., the thermal management component 100 and the base plate 10 are fixed by threaded fasteners); of course, the thermal management component 100 can also directly or indirectly engage with the base plate 10.

[0183] In some embodiments, such as Figure 18 As shown, the housing assembly 200 includes a top cover 9 and a bottom plate 10, and a thermal management component 100 is disposed in at least one of the top cover 9 and the bottom plate 10 to ensure the stable installation of the thermal management component 100.

[0184] Of course, the thermal management component 100 may not be connected to the top cover 9 and the bottom plate 10.

[0185] The battery 300 according to the third aspect of the present application includes a housing assembly 200 and a battery cell 11. The housing assembly 200 is the housing assembly 200 according to the second aspect of the present application described above. The battery cell 11 is disposed in the accommodating cavity 70a. The heat exchange part 1 is disposed on the side of the thermal management component 100 facing the battery cell 11, so as to reduce the distance between the heat exchange part 1 and the battery cell 11 and ensure the heat exchange effect between the heat exchange part 1 and the battery cell 11.

[0186] According to the embodiments of this application, the battery 300, by adopting the above-described housing assembly 200, can improve space utilization and enhance the safety and reliability of the battery 300.

[0187] In some embodiments, such as Figure 3 , Figure 7 , Figure 14 , Figure 18 and Figures 19-21 As shown, at least one side of the thermal management component 100 in the thickness direction is provided with a battery pack 12. The battery pack 12 includes a plurality of battery cells 11 arranged sequentially along the length direction of the thermal management component 100. Each battery cell 11 emits emissions towards the emission section 2 independently, which makes it easy for the emissions of the multiple battery cells 11 to not interfere with each other. For example, if one battery cell 11 emits emissions towards the emission section 2, it will not affect whether the adjacent battery cells 11 emit emissions towards the emission section 2. This helps to further reduce the probability of heat spread in the battery pack 12 and improve the safety of the battery 300.

[0188] For example, when a battery pack 12 is provided on one side of the thermal management component 100 in the thickness direction, the multiple battery cells 11 of the battery pack 12 can share the same thermal management component 100, that is, the thermal management component 100 can exchange heat with the multiple battery cells 11; when battery packs 12 are provided on both sides of the thermal management component 100 in the thickness direction, the battery packs 12 on both sides of the thickness direction can share the same thermal management component 100, that is, the thermal management component 100 can exchange heat with the battery packs 12 on both sides.

[0189] It is understandable that the battery cell 11 can directly discharge emissions toward the emission section 2, or the battery cell 11 can indirectly discharge emissions toward the emission section 2.

[0190] Optionally, in Figure 6 In the example, end plates 121 are provided at both ends of the length of the battery pack 12 to restrict the movement of the entire battery pack 12 in the length direction; of course, when multiple battery packs 12 are arranged sequentially along the height of the thermal management component 100, one end of the length of the multiple battery packs 12 can share the same end plate 121.

[0191] Optionally, in Figure 6In the example, the battery pack 12 includes multiple battery cells 11, and a heat insulation element 122 is provided between two adjacent battery cells 11.

[0192] In some embodiments, such as Figure 3 , Figure 14 , Figure 18 and Figure 19 As shown, at least one side of the discharge section 2 in the thickness direction is provided with a plurality of battery packs 12. The plurality of battery packs 12 located on the same side in the thickness direction of the discharge section 2 are arranged sequentially along the height direction of the discharge section 2. Two battery packs 12 on the same side in the thickness direction are directly opposite or staggered in the length direction of the discharge section 2. Then the corresponding battery cells 11 of the two battery packs 12 on the same side in the thickness direction are directly opposite or staggered in the length direction of the discharge section 2, which facilitates the flexible arrangement of the battery packs 12.

[0193] For example, when multiple battery packs 12 are provided on one side of the thickness of the thermal management component 100, the multiple battery packs 12 can share the same thermal management component 100, that is, the thermal management component 100 can exchange heat with the battery cells 11 of the multiple battery packs 12; when multiple battery packs 12 are provided on both sides of the thickness direction of the thermal management component 100, the number of battery packs 12 on both sides of the thickness of the thermal management component 100 can be equal or unequal.

[0194] Of course, in other embodiments of this application, there may be only one battery pack 12 on either side of the thickness direction of the discharge section 2. For example, a battery pack 12 may be provided on each side of the thickness direction of the discharge section 2; or, a battery pack 12 may be provided on one side of the thickness direction of the discharge section 2, and multiple battery packs 12 may be provided on the other side.

[0195] In some embodiments, such as Figure 3 , Figure 14 , Figure 18 and Figure 19 As shown, the thickness direction of the battery cell 11 is the same as the height direction of the thermal management component 100. The thickness of the battery cell 11 is less than the length of the battery cell 11 and the thickness of the battery cell 11 is less than the width of the battery cell 11. When the height direction of the thermal management component 100 is vertical, the battery cell 11 is laid flat, which can lower the center of gravity of the battery cell 11 and reduce the splashing range of the battery cell 11.

[0196] Understandably, the lower the center of gravity of the battery cell 11, the lower the height of the splash when the battery cell 11 is depressurized. This reduces the vertical impact range of the splash from the battery cell 11, and at the same time, the distance at which the battery cell 11 can splash is also smaller, which is beneficial to improving safety performance. For example, when the battery cell 11 is depressurized, the emissions are discharged through the depressurization structure 111. Since the battery cell 11 is laid flat, the height of the depressurization structure 111 can be reduced, which can effectively reduce the height of the ejection position of the depressurization structure 111, thereby reducing the diffusion area and the splash area, and improving the overall safety performance of the battery.

[0197] For example, in Figure 3 , Figure 14 , Figure 18 and Figure 19 In the example, the battery cell 11 is formed into a hexahedral structure. Taking the battery cell 11 as a cuboid as an example, the length of the battery cell 11 is greater than the width of the battery cell 11, and the width of the battery cell 11 is greater than the thickness of the battery cell 11. When the battery cell 11 is laid flat, the two large surfaces of the battery cell 11 are arranged opposite each other, and the area of ​​the large surface of the battery cell 11 is greater than the area of ​​the other surfaces of the battery cell 11. At this time, the surface of the battery cell 11 that exchanges heat with the thermal management component 100 is not the large surface of the battery cell 11. Compared with the way the large surface of the battery cell 11 exchanges heat with the thermal management component 100, the way the battery cell 11 and the thermal management component 100 are arranged in this application can enable the same thermal management component 100 to exchange heat with more battery cells 11 at the same time, thereby reducing the number of thermal management components 100 that need to be arranged in the battery 300 and simplifying the structure of the battery 300.

[0198] In some embodiments, such as Figure 3 , Figure 14 , Figure 18 and Figure 19 As shown, the number of battery rows 12 on the same side of the thickness of the discharge section 2 is less than the number of battery cells 11 in the same battery row 12; and / or, the number of battery rows 12 on the same side of the thickness of the discharge section 2 is 1 to 3 (including the endpoint value), that is, there is one, two, or three battery rows 12 on the same side of the thickness of the discharge section 2. Therefore, while ensuring the arrangement of the battery rows 12, it is easier to reduce the compressive force borne by the battery rows 12 and reduce the impact of the compressive force on the severity of the discharge of the battery cells 11 when releasing the discharge.

[0199] It is understandable that when there are multiple battery packs 12 on the same side of the thickness of the discharge section 2, these multiple battery packs 12 are arranged sequentially along the height direction of the discharge section 2.

[0200] In some embodiments, such as Figure 14 , Figure 18 and Figure 19As shown, the number of battery rows 12 on the same side as the thickness of the discharge section 2 is less than the number of battery rows 12 of the battery 300 in the thickness direction of the discharge section 2, which can also reduce the compressive force borne by the battery rows 12.

[0201] In some embodiments, such as Figure 14 As shown, the battery 300 also includes a fixing member 13, which is located on the thickness side of the battery pack 12. The fixing member 13 is in a stop-fitting engagement with all the outermost battery packs 12, and the fixing member 13 is in a stop-fitting engagement with the large surface of all the outermost battery cells 11, so as to apply a certain binding force to all the battery cells 11 of the battery 300, ensuring that the performance of the battery cells 11 remains stable after expansion and deformation. The fixing member 13 is fixedly connected to the housing assembly 200 to facilitate the reliable installation of the fixing member 13; for example, the fixing member 13 is fixedly connected to the outer plate 7 of the housing assembly 200.

[0202] For example, in Figure 14 In the example, the fastener 13 is located on the top side of all battery packs 12, and the fastener 13 directly or indirectly engages with all the uppermost battery packs 12. When the battery cell 11 expands, the fastener 13 will deform and arch upwards, so that the fastener 13 applies a downward force to the battery cell 11 pack at least when the battery cell 11 expands and deforms.

[0203] Optionally, the fastener 13 is formed as a plate-like structure to simplify the structure of the fastener 13; of course, the fastener 13 can also be a grid structure or a mesh structure, etc.

[0204] In some embodiments, such as Figure 3 , Figure 14 , Figure 18 and Figure 19 As shown, battery packs 12 are provided on both sides of the thickness direction of the thermal management component 100. The battery packs 12 on both sides of the thickness share the same thermal management component 100, so as to reduce the number of thermal management components 100 that need to be arranged in the battery 300.

[0205] It is understood that there can be one or more battery packs 12 on the same side of the thickness of the thermal management component 100, and the number of battery packs 12 on both sides of the thickness of the thermal management component 100 can be equal or unequal.

[0206] Of course, in other embodiments of this application, a battery pack 12 is provided on one side of the thermal management component 100 in the thickness direction.

[0207] In some embodiments, the battery cells 11 on both sides of the thickness of the battery pack 12 are staggered, which makes it easier to stagger the emission positions of the corresponding battery cells 11 on both sides of the thickness. This helps to avoid the opposite spraying when the corresponding battery cells 11 on both sides of the thickness emit emissions, thereby further reducing the probability of heat spread.

[0208] Optionally, the battery cells 11 of the battery pack 12 on both sides of the thickness are offset along the length direction of the thermal management component 100; or, the battery cells 11 of the battery pack 12 on both sides of the thickness are offset along the height direction of the thermal management component 100; or, the battery cells 11 of the battery pack 12 on both sides of the thickness are offset along the length direction and the height direction of the thermal management component 100, respectively.

[0209] In some embodiments, such as Figure 4 and Figure 6 As shown, the side surface of the battery cell 11 facing the thermal management component 100 has a pressure relief structure 111. The emissions from the battery cell 11 are discharged through the pressure relief structure 111 and then received by the discharge section 2. This can shorten the path of the emissions to the discharge section 2 via the pressure relief structure 111, improve the discharge efficiency, reduce the probability of high-temperature emissions impacting other battery cells 11 and causing heat spread, or reduce the probability of high-temperature emissions impacting other components inside the battery 300 and causing insulation failure.

[0210] For example, the pressure relief structure 111 can be an explosion-proof valve, or the pressure relief structure 111 can also be a weak area on the battery cell 11, such as a groove formed on the casing of the battery cell 11.

[0211] Optionally, the pressure relief structure 111 of the battery cell 11 is directly connected to the discharge chamber 21 of the discharge section 2. For example, the heat exchange section 1 is located on the side of the thermal management component 100 facing the battery cell 11. The heat exchange section 1 may include a plurality of spaced heat exchange subsections, and a part of the discharge section 2 is located between two adjacent heat exchange subsections. Alternatively, the pressure relief structure 111 of the battery cell 11 is indirectly connected to the discharge chamber 21 of the discharge section 2. For example, the pressure relief structure 111 of the battery cell 11 is connected to the discharge chamber 21 of the discharge section 2 through the communication path 12 of the heat exchange section 1.

[0212] In some embodiments, such as Figure 5 As shown, a protective component 14 is provided at the pressure relief structure 111 of the battery cell 11. The protective component 14 covers the pressure relief structure 111 and is used to shield the emissions emitted by the battery cell 11 through the pressure relief structure 111. This reduces the impact of the emissions from the battery cell 11 on the corresponding battery cell 11 on the same side of the same thickness without affecting the smooth emission of the emissions from the battery cell 11, thereby further reducing the probability of thermal diffusion of the battery 300.

[0213] Optionally, the protective component 14 is made of fire-resistant material.

[0214] Of course, the setting of the protective member 14 is not limited to this; in other embodiments, the thermal management component 100 defines a discharge chamber 21 (the discharge chamber 21 is defined only by the discharge section 2, or the discharge chamber 21 is defined by the discharge section 2 and the heat exchange section 1, or the discharge chamber 21 is defined by the discharge section 2, the heat exchange section 1 and other parts of the thermal management component 100), an inlet region 21a is formed on the wall surface of the discharge chamber 21, the discharge chamber 21 is adapted to receive the emissions discharged by the battery cell 11 through the inlet region 21a, the protective member 14 is disposed in the discharge chamber 21, and the orthographic projection of the protective member 14 on the wall surface of the discharge chamber 21 is adapted to cover at least a portion of the inlet region 21a, which can also reduce the probability of thermal diffusion of the battery 300.

[0215] In some embodiments, battery cells 11 are respectively provided on both sides of the thickness of the thermal management component 100. The surface of the battery cell 11 facing the thermal management component 100 has a pressure relief structure 111. The pressure relief structures 111 of the battery cells 11 on both sides of the thickness are staggered, which helps to avoid the opposite spray when the corresponding battery cells 11 on both sides of the thickness emit emissions, thereby further reducing the probability of heat spread. At this time, the battery cells 11 on both sides of the thickness can be staggered or face each other.

[0216] Optionally, the pressure relief structures 111 of the battery cells 11 on both sides of the thickness are offset along the length direction of the thermal management component 100; or, the pressure relief structures 111 of the battery cells 11 on both sides of the thickness are offset along the height direction of the thermal management component 100; or, the pressure relief structures 111 of the battery cells 11 on both sides of the thickness are offset along the length direction and the height direction of the thermal management component 100, respectively.

[0217] In some embodiments, such as Figure 12 As shown, the battery cell 11 is a cylindrical battery 110. The outer surface of the heat exchange part 1 has a first groove 6a. The battery cell 11 is disposed in the first groove 6a. The first groove 6a can accommodate at least a part of the cylindrical battery 110, which is beneficial to increase the heat exchange area between the heat exchange part 1 and the cylindrical battery 110. At the same time, it can save the space occupied by the battery cell 11 and the thermal management component 100 in the thickness direction of the thermal management component 100, which is conducive to improving the space utilization of the battery 300.

[0218] It is understandable that when the heat management component 100 defines the heat exchange cavity 11A (the heat exchange cavity 11A is defined only by the heat exchange section 1, or the heat exchange cavity 11A is defined by the heat exchange section 1 and the discharge section 2, or the heat exchange cavity 11A is defined by the discharge section 2, the heat exchange section 1 and other parts of the heat management component 100), the provision of the first groove 6a is beneficial to increasing the contact area between the heat exchange cavity 11A and the heat exchange medium, thereby improving the heat exchange effect.

[0219] In some embodiments, such as Figure 12As shown, the first groove 6a and the cylindrical battery 110 are shaped to match, so the groove surface of the first groove 6a can be formed as a curved surface, such as an arc surface, in order to ensure the accommodating space 70 of the first groove 6a, and at the same time, it is beneficial to further increase the heat exchange area between the heat exchange part 1 and the cylindrical battery 110.

[0220] In some embodiments, such as Figure 12 As shown, the cylindrical battery 110 is attached to the groove surface of the first groove 6a, which helps to further increase the heat exchange area between the heat exchange section 1 and the cylindrical battery 110, improve the heat exchange efficiency between the heat exchange section 1 and the cylindrical cell, and facilitate direct heat exchange between the cylindrical battery 110 and the heat exchange section 1.

[0221] In some embodiments, the outer peripheral wall of the cylindrical battery 110 casing has a fitting portion 110a, which fits against the groove surface of the first groove 6a. The fitting portion 110a has a pressure relief structure 111, and the groove surface of the first groove 6a has a communication port. The communication port is opposite to the pressure relief structure 111 and is disposed in a way that avoids the heat exchange chamber 11A of the heat exchange section 1. The discharge from the cylindrical battery 110 is suitable for being discharged to the discharge section 2 through the pressure relief structure 111 and the communication port.

[0222] In some embodiments, battery packs 12 are respectively provided on both sides of the thermal management component 100 in the thickness direction. Each battery pack 12 includes at least one cylindrical battery 110. The cylindrical batteries 110 on both sides of the thickness are staggered, for example, the cylindrical batteries 110 on both sides of the thickness are staggered in the length direction of the thermal management component 100. Of course, the cylindrical batteries 110 on both sides of the thickness can also be arranged facing each other in the length direction of the thermal management component 100, such as... Figure 12 As shown.

[0223] In some embodiments, such as Figure 12 As shown, battery packs 12 are provided on both sides of the thermal management component 100 in the thickness direction. Each battery pack 12 includes at least one cylindrical battery 110. The outer peripheral wall of the cylindrical battery 110 has a fitting portion 110a, which fits into the groove surface of the first groove 6a. The fitting portion 110a has a pressure relief structure 111. The pressure relief structures 111 of the battery cells 11 on both sides of the thickness are staggered, which helps to avoid the opposite spray when the corresponding battery cells 11 on both sides of the thickness emit emissions, thereby further reducing the probability of heat spread.

[0224] It is understandable that, for the cylindrical battery 110, the bonding portion 110a is an arc surface, and the pressure relief structure 111 on the corresponding arc surface of the bonding portion 110a can be adjusted to achieve the staggered setting of the corresponding pressure relief structures 111 on both sides of the thickness; at this time, the cylindrical batteries 110 on both sides of the thickness can be staggered or set directly opposite each other.

[0225] In some embodiments, such as Figure 13As shown, the length of the battery cell 11 is greater than 0.6m, the length of the battery cell 11 is greater than the width of the battery cell 11, and the length of the battery cell 11 is greater than the thickness of the battery cell 11. At this time, the battery cell 11 can be formed into a blade battery. The thermal management component 100 is provided at one end of the length of the battery cell 11. The thermal management component 100 can exchange heat with multiple battery cells 11 arranged sequentially along the length direction of the thermal management component 100.

[0226] For example, a pressure relief structure 111 is provided at one end of the length of the battery cell 11. The pressure relief structure 111 is disposed opposite to the thermal management component 100 to reduce the emission path of the battery cell 11 to the emission section 2.

[0227] Optionally, the length direction of the thermal management component 100 is perpendicular to the length direction of the battery cell 11, which facilitates the regular layout of the battery 300.

[0228] Of course, when the battery cell 11 is a blade battery, the thermal management component 100 can also be provided on the thickness side of the battery cell 11 so that the thermal management component 100 and the large surface of the battery cell 11 can be thermally connected.

[0229] The battery 300 according to the fourth aspect embodiment of this application includes a thermal management component 100 and a battery cell 11. The thermal management component 100 is the same as the thermal management component 100 according to the first aspect embodiment of this application. The battery cell 11 is provided on at least one side of the thermal management component 100 in the thickness direction, and the heat exchange part 1 is provided on the side of the thermal management component 100 facing the battery cell 11.

[0230] According to the embodiments of this application, the battery 300, by adopting the above-described thermal management component 100, facilitates the improvement of the space utilization of the battery 300 and ensures the safe use of the battery cell 11.

[0231] Optionally, the arrangement of the battery cell 11 and the thermal management component 100 in the battery 300 according to the fourth aspect embodiment of this application is the same as the arrangement of the battery cell 11 and the thermal management component 100 in the battery 300 according to the third aspect embodiment of this application, and will not be described again here.

[0232] The electrical device 400 according to the fifth aspect embodiment of this application includes the battery 300 according to the third aspect embodiment of this application described above. The battery 300 is used to provide electrical energy to the electrical device 400. Therefore, by using the battery 300 described above, the safety of the electrical device 400 in use can be improved.

[0233] Optionally, such as Figure 22As shown, when the battery 300 is used in a vehicle, it can be located at the bottom, front, or rear of the vehicle. The battery 300 can be used to power the vehicle; for example, it can serve as the vehicle's operating power source. The vehicle may also include a controller and a motor. The controller controls the battery 300 to supply power to the motor, for example, to meet the vehicle's power needs during starting, navigation, and driving. In some embodiments of this application, the battery 300 can not only serve as the vehicle's operating power source but also as its driving power source, replacing or partially replacing fuel or natural gas to provide driving power to the vehicle.

[0234] Other configurations and operations of the electrical device 400 according to the embodiments of this application are known to those skilled in the art and will not be described in detail here.

[0235] In the description of this application, it should be understood that the 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," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0236] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0237] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0238] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A thermal management component (100), wherein, include: Heat exchange section (1), the heat exchange section (1) is used for heat exchange with battery cell (11); The discharge section (2) is used to receive the emissions from the battery cell (11), and at least a portion of the discharge section (2) is thermally connected to the heat exchange section (1). A second heat-conducting element is provided between the heat exchange section (1) and the discharge section (2).

2. The thermal management component (100) according to claim 1, wherein, The thermal management component (100) extends into a long strip shape, and the height of the thermal management component (100) is greater than the thickness of the thermal management component (100). The heat exchange section (1) and the discharge section (2) are arranged along the thickness direction of the thermal management component (100).

3. The thermal management component (100) according to claim 2, wherein, Along the thickness direction of the thermal management component (100), the heat exchange section (1) is disposed on the outside of the discharge section (2) and is disposed adjacent to the battery cell (11) disposed on the outside of the thickness of the thermal management component (100) relative to the discharge section (2).

4. The thermal management component (100) according to claim 3, wherein, The heat exchange section (1) is provided on both sides of the discharge section (2).

5. The thermal management component (100) according to claim 4, wherein, The discharge section (2) includes a discharge chamber (21), the discharge chamber (21) being configured such that the discharge material within the discharge chamber (21) is adapted to exchange heat with the two heat exchange sections (1); or, The discharge section (2) includes two discharge chambers (21) arranged along the thickness direction, each of the discharge chambers (21) being configured such that the discharge material in the discharge chamber (21) is adapted to exchange heat with the heat exchange section (1) on the corresponding side.

6. The thermal management component (100) according to any one of claims 3-5, wherein, The thermal management component (100) includes a body (3) and a heat exchanger (4) disposed on at least one side of the thickness of the body (3). The heat exchanger (4) is configured as the heat exchange section (1). The body (3) is configured alone as the discharge section (2), or the body (3) and the heat exchanger (4) together define the discharge section (2).

7. The thermal management component (100) according to claim 6, wherein, The discharge section (2) defines a discharge chamber (21), and the heat exchanger (4) forms a first discharge path (12) extending to the discharge chamber (21). The first discharge path (12) communicates with the discharge chamber (21), and the discharge chamber (21) is adapted to receive emissions from the battery cell (11) through the first discharge path (12).

8. The thermal management component (100) according to claim 6 or 7, wherein, The heat exchanger (4) is provided on both sides of the thickness of the body component (3). Each heat exchanger (4) defines a heat exchange cavity (11). The heat exchange cavity (11) has an inlet (11a) and an outlet (11b) so that the heat exchange medium is suitable to flow into the heat exchange cavity (11) through the inlet (11a) and out through the outlet (11b). The heat exchange cavities (11) on both sides of the thickness of the body component (3) are connected in series or in parallel.

9. The thermal management component (100) according to any one of claims 1-8, wherein, The discharge section (2) defines a discharge chamber (21), and the discharge section (2) has an inlet region (21a) communicating with the discharge chamber (21) on opposite sides. The discharge chamber (21) is adapted to receive emissions from the battery cell (11) through the inlet region (21a). The inlet regions (21a) on opposite sides are offset in the length direction of the thermal management component (100).

10. The thermal management component (100) according to claim 9, wherein, The thermal management component (100) includes a body component (3) and heat exchange components (4) disposed on both sides of the thickness of the body component (3), wherein the heat exchange components (4) are configured as the heat exchange section (1). The body component (3) is separately constructed as the discharge section (2), and the inlet region (21a) is formed on the body component (3); or, When the body component (3) and the heat exchange component (4) together define the discharge section (2), the inlet region (21a) is formed on the heat exchange component (4).

11. The thermal management component (100) according to any one of claims 1-10, wherein, The heat exchange section (1) defines a heat exchange cavity (11), which is adapted to contain a heat exchange medium.

12. The thermal management component (100) according to claim 11, wherein, The heat exchange section (1) has an inlet (11a) and an outlet (11b) to allow the heat exchange medium to flow through the inlet (11a) into the heat exchange chamber (11) and out through the outlet (11b).

13. The thermal management component (100) according to claim 11 or 12, wherein, The heat exchange medium is a gas, a liquid, or a gas-liquid mixture.

14. The thermal management component (100) according to any one of claims 11-13, wherein, The heat exchange chamber (11) includes multiple heat exchange branch chambers (111).

15. The thermal management component (100) according to claim 14, wherein, The heat exchange section (1) has an inlet (11a) and an outlet (11b), and each heat exchange branch cavity (111) is connected to the inlet (11a) and the outlet (11b) respectively.

16. The thermal management component (100) according to any one of claims 11-15, wherein, The heat exchange cavity (11) is provided with a first heat-conducting element (5).

17. The thermal management component (100) according to claim 16, wherein, The first heat-conducting element (5) divides the heat exchange cavity (11) into multiple heat exchange branch cavities (111).

18. The thermal management component (100) according to any one of claims 1-17, wherein, The thermal management component (100) includes two oppositely arranged outer plates (6), at least one of the outer plates (6) being configured as the heat exchange section (1), and the battery cell (11) being adapted to be disposed on the outside of the thickness of the outer plate (6).

19. The thermal management component (100) according to claim 18, wherein, The outer side plate (6) is adapted to exchange heat with the cylindrical battery (110), and the outer side wall of the outer side plate (6) is formed with a first groove (6a) to accommodate at least a portion of the cylindrical battery (110).

20. The thermal management component (100) according to claim 19, wherein, The groove surface of the first groove (6a) is curved.

21. The thermal management component (100) according to claim 20, wherein, The outer side wall of the outer side plate (6) has a plurality of first protrusions (6b), and the first groove (6a) is defined between two adjacent first protrusions (6b).

22. The thermal management component (100) according to claim 21, wherein, The inner wall of the outer side plate (6) has a plurality of second protrusions (6d), and a second groove (6c) is defined between two adjacent second protrusions (6d). The second protrusions (6d) and the first protrusions (6b) are opposite to each other along the thickness direction of the heat exchange part (1), and the second groove (6c) and the first groove (6a) are opposite to each other along the thickness direction of the heat exchange part (1).

23. The thermal management component (100) according to claim 18, wherein, The outer side wall of the outer side plate (6) is a plane.

24. The thermal management component (100) according to claim 23, wherein, The inner wall surface of the outer side plate (6) has a protrusion (6e), and a heat exchange cavity (11) is formed at the position corresponding to the protrusion (6e).

25. The thermal management component (100) according to any one of claims 18-24, wherein, The outer side plate (6) has an inlet region (21a), the discharge chamber (21) is adapted to receive emissions from the battery cell (11) through the inlet region (21a), and the outer side plate (6) has an insulating element disposed on the outer periphery of the inlet region (21a).

26. A housing assembly (200), wherein, The housing assembly (200) defines a receiving cavity (70a) for accommodating a battery cell (11), and the housing assembly (200) includes a thermal management component (100) according to any one of claims 1-25.

27. The housing assembly (200) according to claim 26, wherein, The housing assembly (200) further includes a side panel (7) and a partition beam (8), the partition beam (8) being located within the space (70) enclosed by the side panel (7) to divide the space (70) into a plurality of the receiving cavities (70a), at least one of the side panel (7) and the partition beam (8) being configured as the thermal management component (100).

28. The housing assembly (200) according to claim 27, wherein, The partition beam (8) includes a longitudinal beam (82) extending along the length of the housing assembly (200), the longitudinal beam (82) being configured as the thermal management component (100); or, The partition beam (8) includes a crossbeam (81) extending along the width direction of the housing assembly (200), the crossbeam (81) being configured as the thermal management component (100); or, The partition beam (8) includes a longitudinal beam (82) extending along the length direction of the housing assembly (200) and a transverse beam (81) extending along the width direction of the housing assembly (200), at least one of the longitudinal beam (82) and the transverse beam (81) being configured as the thermal management component (100).

29. The housing assembly (200) according to claim 27 or 28, wherein, The partition beam (8) is configured as the thermal management component (100), and the side panel (7) forms a second discharge path that communicates with the discharge chamber (21) of the discharge section (2).

30. The housing assembly (200) according to any one of claims 26-29, wherein, The housing assembly (200) includes a top cover (9), and the thermal management component (100) is disposed on the top cover (9).

31. The housing assembly (200) according to any one of claims 26-30, wherein, The housing assembly (200) includes a base plate (10), and the thermal management component (100) is disposed on the base plate (10).

32. A battery (300), wherein, include: A housing assembly (200), wherein the housing assembly (200) is the housing assembly (200) according to any one of claims 26-31; A battery cell (11) is disposed in the accommodating cavity (70a), and a heat exchange unit (1) is disposed on the side of the thermal management component (100) facing the battery cell (11).

33. The battery (300) according to claim 32, wherein, The thermal management component (100) has a battery pack (12) on at least one side in the thickness direction. The battery pack (12) includes a plurality of battery cells (11) arranged sequentially along the length direction of the thermal management component (100). Each battery cell (11) discharges emissions into the discharge section (2) individually.

34. The battery (300) according to claim 33, wherein, At least one side of the discharge section (2) in the thickness direction is provided with a plurality of battery packs (12) arranged sequentially along the height direction of the discharge section (2), and two battery packs (12) on the same thickness side are facing each other or staggered in the length direction of the discharge section (2).

35. The battery (300) according to claim 33 or 34, wherein, The thickness direction of the battery cell (11) is the same as the height direction of the thermal management component (100).

36. The battery (300) according to claim 35, wherein, The number of battery rows (12) on the same side of the thickness of the discharge section (2) is less than the number of battery cells (11) in the same battery row (12); and / or, The number of battery rows (12) on the same side as the thickness of the discharge section (2) is 1 to 3.

37. The battery (300) according to claim 35, wherein, Also includes: The fastener (13) is located on the thickness side of the battery pack (12) and engages with all the outermost battery packs (12). The fastener (13) is fixedly connected to the housing assembly (200).

38. The battery (300) according to any one of claims 32-37, wherein, The battery pack (12) is provided on both sides of the thermal management component (100) in the thickness direction.

39. The battery (300) according to claim 38, wherein, The battery cells (11) of the battery pack (12) on both sides of the thickness are staggered.

40. The battery (300) according to any one of claims 32-39, wherein, The surface of the battery cell (11) facing the thermal management component (100) has a pressure relief structure (111).

41. The battery (300) according to claim 40, wherein, The battery cell (11) is provided with a protective member (14) at the pressure relief structure (111). The protective member (14) covers the pressure relief structure (111) and is used to shield the emissions emitted by the battery cell (11) through the pressure relief structure (111).

42. The battery (300) according to any one of claims 32-41, wherein, The battery cell (11) is a cylindrical battery (110), and the outer surface of the heat exchange part (1) has a first groove (6a), and the battery cell (11) is disposed in the first groove (6a).

43. The battery (300) according to claim 42, wherein, The first groove (6a) and the cylindrical battery (110) are shaped to match.

44. The battery (300) according to claim 42 or 43, wherein, The cylindrical battery (110) is attached to the groove surface of the first groove (6a).

45. The battery (300) according to any one of claims 32-44, wherein, The length of the battery cell (11) is greater than 0.6m, the length of the battery cell (11) is greater than the width of the battery cell (11), and the length of the battery cell (11) is greater than the thickness of the battery cell (11). The thermal management component (100) is located at one end of the length of the battery cell (11).

46. ​​The battery (300) according to claim 45, wherein, The length direction of the thermal management component (100) is perpendicular to the length direction of the battery cell (11).

47. A battery (300), wherein, include: A thermal management component (100), wherein the thermal management component (100) is the thermal management component (100) according to any one of claims 1-25; The battery cell (11) is provided on at least one side of the thermal management component (100) in the thickness direction, and the heat exchange part (1) is provided on the side of the thermal management component (100) facing the battery cell (11).

48. An electrical appliance (400), wherein, Includes a battery (300) according to any one of claims 32-47, said battery (300) being used to provide electrical energy to said electrical device (400).

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