Thermal management components, thermal management assemblies, batteries and electrical devices

Abstract

This application provides a thermal management component, a thermal management assembly, a battery, and an electrical device, belonging to the field of battery technology. The thermal management component includes two straight walls and two bent walls. The two straight walls are arranged opposite each other along a first direction. The two bent walls are respectively connected to both ends of the straight walls along a second direction, perpendicular to the first direction. The two bent walls and the two straight walls enclose a receiving space for accommodating a heat exchange medium. With this structure, during manufacturing, the bent walls deform easily when the thermal management component is compressed along the first direction. This compression allows for the absorption of manufacturing tolerances in the thermal management component, controlling its dimensions in the first direction and effectively improving manufacturing precision. This ensures the assembly accuracy between the thermal management component and the battery cell, facilitating temperature regulation of the battery cell by the thermal management component.

Description

Technical Field

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

[0002] In recent years, new energy vehicles have experienced rapid development. In the field of electric vehicles, the power battery, as the power source, plays an irreplaceable and crucial role. A battery consists of a casing and multiple individual battery cells housed within it. As a core component of new energy vehicles, the battery has high requirements in terms of both safety and lifespan. During continuous charging and discharging, the individual battery cells generate a significant amount of heat. Therefore, thermal management components are installed within the casing to regulate the temperature of the individual cells. However, existing thermal management components suffer from manufacturing tolerances and poor production quality, resulting in poor assembly precision between the thermal management components and the battery cells, which is detrimental to the temperature regulation of the individual battery cells. Summary of the Invention

[0003] This application provides a thermal management component, a thermal management assembly, a battery, and an electrical device, which can effectively improve the manufacturing precision of the thermal management component.

[0004] In a first aspect, embodiments of this application provide a thermal management component, including two straight walls and two bent walls; the two straight walls are arranged opposite each other along a first direction; the two bent walls are respectively connected to the two ends of the straight walls along a second direction, the second direction being perpendicular to the first direction, the two bent walls and the two straight walls enclose a receiving space, the receiving space being used to receive a heat exchange medium.

[0005] In the above technical solution, the thermal management component has two straight walls arranged opposite each other along a first direction, and the same end of the two straight walls is connected by a bent wall to enclose and form a receiving space for accommodating the heat exchange medium. This enables the thermal management component to perform temperature management. When the thermal management component with this structure is compressed along the first direction during the manufacturing process, the bent wall is easy to deform. This compression can absorb the manufacturing tolerance of the thermal management component, control the size of the thermal management component in the first direction, and thus effectively improve the manufacturing accuracy of the thermal management component. This ensures the assembly accuracy between the thermal management component and the battery cell, which is beneficial for the thermal management component to regulate the temperature of the battery cell.

[0006] In some embodiments, along the second direction, the bent wall bends in a direction away from the receiving space.

[0007] In the above technical solution, by setting the bent wall as a structure that bends away from the receiving space in the second direction, that is, the bent wall protrudes outward at both ends of the thermal management component, this structure is convenient to manufacture and helps to reduce the manufacturing difficulty of the thermal management component. On the other hand, it can effectively alleviate the phenomenon of cracking at the connection between the bent wall and the straight wall when compressing and absorbing manufacturing tolerances of the thermal management component.

[0008] In some embodiments, the bent wall includes a first segment and two second segments, one second segment, the first segment, and the other second segment are connected in sequence, and the two second segments are respectively connected to two straight walls; wherein, the second segment is inclined relative to the straight wall to which it is connected, and the first segment is located between the two straight walls along a first direction.

[0009] In the above technical solution, the bent wall has a second segment connected to two straight walls respectively and a first segment connected between the two second segments. The second segment bends towards the other second segment in a first direction, so that the distance between the two second segments gradually decreases towards the first segment in a second direction, so that the bent wall forms a contracted structure. This allows the second segment to deform relative to the first segment when compressing and absorbing manufacturing tolerances for the thermal management component, so as to facilitate the compression and absorption manufacturing tolerances for the thermal management component.

[0010] In some embodiments, the wall thickness of the straight wall is L1, and the wall thickness of the first segment is L2, satisfying that L2 > L1.

[0011] In the above technical solution, by setting the wall thickness of the first section of the bent wall to be greater than that of the straight wall, the structural strength and deformation resistance of the first section of the bent wall are increased. This effectively alleviates the phenomenon of excessive deformation or curvature radius change in the first section of the bent wall when compressing and absorbing manufacturing tolerances of the thermal management component. It helps to ensure that the first section of the bent wall maintains its original structural shape, thereby reducing the phenomenon of over-compression or crushing of the thermal management component and reducing the risk of the bent wall being crushed or cracked during the compression process of the thermal management component.

[0012] In some embodiments, along the second direction, the first segment is an arc-shaped structure that curves away from the receiving space.

[0013] In the above technical solution, by setting the first segment as an outwardly curved arc structure, it is easier to connect the first segment and the second segment, which helps to reduce manufacturing difficulty. On the other hand, it can realize the arc transition between the first segment and the second segment, so as to alleviate the phenomenon that the radius of curvature at the connection between the first segment and the second segment is too small. This can effectively reduce the risk of the connection between the first segment and the second segment being crushed or cracked during the compression of the thermal management component.

[0014] In some embodiments, the wall thickness of the second segment gradually increases from the end connected to the straight wall to the end connected to the first segment.

[0015] In the above technical solution, by setting the wall thickness of the second segment to gradually increase from the end connecting the straight wall to the end connecting the first segment, it is easier to manufacture the wall thickness of the first segment to be greater than that of the straight wall, which helps to reduce the manufacturing difficulty.

[0016] In some embodiments, the thermal management component further includes a reinforcement portion; the reinforcement portion is disposed between the two second segments along a first direction.

[0017] In the above technical solution, by setting a reinforcing part between the two second segments along the first direction, the reinforcing part can provide a certain support for the two second segments, thereby increasing the deformation resistance of the first segment of the bent wall. Thus, when the thermal management component is compressed to absorb manufacturing tolerances, the phenomenon of deformation or excessive change in the radius of curvature of the first segment of the bent wall can be effectively alleviated. This helps to ensure that the first segment of the bent wall maintains its original structural shape, thereby reducing the phenomenon of over-compression or crushing of the thermal management component, and reducing the risk of the bent wall being crushed or cracked during the compression process of the thermal management component.

[0018] In some embodiments, along a first direction, one end of the reinforcing portion is connected to one of the two second segments, and the other end is spaced apart from the other of the two second segments.

[0019] In the above technical solution, by setting the reinforcing part to be connected to one second segment and spaced apart from another second segment, the reinforcing part can provide a compression allowance while supporting the two second segments, so as to facilitate the compression absorption of manufacturing tolerances for the thermal management component.

[0020] In some embodiments, along the first direction, the two ends of the reinforcing portion are respectively connected to two second segments.

[0021] In the above technical solution, by connecting the two ends of the reinforcing part to the two second sections respectively, this structure can effectively improve the connection strength between the reinforcing part and the bent wall, which is beneficial to improving the supporting effect of the reinforcing part on the two second sections.

[0022] In some embodiments, the reinforcing portion is spaced apart from the first segment along the second direction.

[0023] In the above technical solution, by setting the reinforcing part and the first segment at a distance in the second direction, a gap is created between the reinforcing part and the first segment in the second direction, which helps to reduce the manufacturing difficulty of the thermal management component.

[0024] In some embodiments, the thermal management component further includes a plurality of partitions; the plurality of partitions are spaced apart along a second direction, the partitions are inclinedly disposed between and connected to the two straight walls, and the plurality of partitions are configured to divide the accommodating space into a plurality of medium flow channels for accommodating heat exchange medium.

[0025] In the above technical solution, by providing multiple partitions spaced apart along the second direction within the housing space of the heat management component, the housing space is divided into multiple medium flow channels for the flow of heat exchange medium, thereby facilitating the control of the flow velocity and flow rate of the heat exchange medium within the heat management component. Furthermore, by inclinedly arranging the partitions and connecting them between two straight walls, the partitions are easily deformable when the heat management component is compressed and subjected to manufacturing tolerances along the first direction, thereby reducing the difficulty of compressing the heat management component.

[0026] In some embodiments, the partition has opposing first and second surfaces in its thickness direction, and the two straight walls include a first straight wall and a second straight wall. The first straight wall has a third surface facing the medium flow channel, and the second straight wall has a fourth surface facing the medium flow channel. The first surface is set at an acute angle and an obtuse angle with the third surface and the fourth surface, respectively, and the second surface is set at an obtuse angle and an acute angle with the third surface and the fourth surface, respectively. The first surface and the third surface are connected by a first chamfered surface; and / or, the second surface and the fourth surface are connected by a second chamfered surface.

[0027] In the above technical solution, the two surfaces of the partition and the straight wall that are set at an acute angle are connected by a chamfered surface to increase the thickness of the part of the partition connected to the straight wall in the second direction. This can improve the connection stability and reliability between the partition and the straight wall, and alleviate the phenomenon of cracks appearing between the partition and the straight wall.

[0028] In some embodiments, a support portion is provided on the side of the flat wall facing the receiving space along the first direction, and the size of the support portion is smaller than the distance between the two flat walls.

[0029] In the above technical solution, by setting a support part on the side of the flat wall facing the accommodating space, and the size of the support part in the first direction is smaller than the distance between the two flat walls, that is, the support part is set on one flat wall and spaced apart from the other flat wall in the first direction, the heat management component with this structure can provide a certain support to the two flat walls when the heat management component is compressed and absorbed to meet manufacturing tolerances, so as to alleviate the phenomenon of excessive compression or crushing of the heat management component, thereby helping to ensure the smooth flow of the heat exchange medium in the accommodating space.

[0030] In some embodiments, both straight walls are provided with support portions, and the projections of the support portions on the two straight walls do not overlap along the first direction.

[0031] In the above technical solution, by providing support parts on both flat walls, and ensuring that the projections of the support parts on the two flat walls do not overlap in the first direction, it is beneficial to improve the support effect of the support parts on the two flat walls, thereby further reducing the risk of excessive compression or crushing of the thermal management components.

[0032] Secondly, embodiments of this application also provide a thermal management component, including a first busbar, a second busbar, and the aforementioned thermal management component; along a third direction, the first busbar and the second busbar are respectively connected to both ends of the thermal management component, and the first direction, the second direction, and the third direction are perpendicular to each other; wherein, the first busbar and the second busbar each have a medium inlet and a medium outlet, and both the medium inlet and the medium outlet are in communication with the accommodating space.

[0033] In the above technical solution, the thermal management component is further provided with a first busbar and a second busbar connected to the two ends of the thermal management component in a third direction. The first busbar and the second busbar are respectively provided with a medium inlet and a medium outlet. By connecting the two ends of the accommodating space to the medium inlet and the medium outlet respectively, the heat exchange medium can flow into or out of the accommodating space, so as to realize the thermal management function of the thermal management component.

[0034] Thirdly, embodiments of this application also provide a battery, including a housing, a battery cell, and the aforementioned thermal management component; the thermal management component is disposed within the housing and is used to regulate the temperature of the battery cell.

[0035] In some embodiments, the battery cell has a first side surface, which is the surface with the largest area on the outer surface of the battery cell, and the first side surface abuts against a flat wall.

[0036] In the above technical solution, by setting the flat wall of the thermal management component to abut against the first side of the battery cell, that is, the thermal management component is set on the side with the largest surface area of ​​the battery cell, it can be ensured that the battery cell and the thermal management component have sufficient heat exchange area, which is conducive to improving the thermal management capability of the thermal management component for the battery cell, and thus can effectively reduce the safety hazards caused by temperature rise during battery use.

[0037] Fourthly, embodiments of this application also provide an electrical device, including the battery described above, which is used to provide electrical energy. Attached Figure Description

[0038] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This application provides structural schematic diagrams of vehicles for some embodiments;

[0040] Figure 2 Exploded views of the battery structure provided in some embodiments of this application;

[0041] Figure 3 This is a schematic diagram illustrating the assembly of a thermal management component and a battery cell according to some embodiments of this application;

[0042] Figure 4 This is a schematic diagram of the structure of a thermal management component provided in some embodiments of this application;

[0043] Figure 5 This is a schematic diagram of the structure of a thermal management component provided in some embodiments of this application;

[0044] Figure 6 for Figure 5 A partial enlarged view of point A of the thermal management component shown;

[0045] Figure 7 A front view of a thermal management component provided in some embodiments of this application from a third-party perspective;

[0046] Figure 8 for Figure 7 A partial enlarged view of point B of the thermal management component shown;

[0047] Figure 9 A front view of a thermal management component provided in some embodiments of this application from a third-party perspective;

[0048] Figure 10 for Figure 9 A partial enlarged view of point C of the thermal management component shown;

[0049] Figure 11 A front view of a thermal management component provided in some embodiments of this application from a third-party perspective;

[0050] Figure 12 for Figure 11 A magnified view of part D of the thermal management component shown;

[0051] Figure 13 for Figure 7 A partial enlarged view of point E of the thermal management component shown;

[0052] Figure 14 A front view of a thermal management component provided in some other embodiments of this application from a third-party perspective.

[0053] Icons: 1000 - Vehicle; 100 - Battery; 10 - Housing; 11 - First Housing Body; 12 - Second Housing Body; 20 - Battery Cell; 21 - First Side; 30 - Thermal Management Assembly; 31 - Thermal Management Component; 311 - Flat Wall; 3111 - First Flat Wall; 3111a - Third Surface; 3112 - Second Flat Wall; 3112a - Fourth Surface; 312 - Bent Wall; 3121 - First Segment; 3122 - Second Segment; 313 - Accommodation space; 3131 - Medium flow channel; 314 - Reinforcing part; 315 - Separating part; 3151 - First surface; 3152 - Second surface; 316 - First chamfered surface; 317 - Second chamfered surface; 318 - Support part; 32 - First manifold; 321 - Medium inlet; 33 - Second manifold; 331 - Medium outlet; 200 - Controller; 300 - Motor; X - First direction; Y - Second direction; Z - Third direction. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0055] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0056] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0057] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0058] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0059] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0060] In this application, "multiple" means two or more (including two).

[0061] 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.

[0062] The battery mentioned in the embodiments of this application refers to a single physical module comprising one or more battery cells to provide higher voltage and capacity. For example, the battery mentioned in this application may include a battery module or a battery pack. A battery generally includes a housing for encapsulating one or more battery cells or multiple battery modules. The housing can prevent liquids or other foreign matter from affecting the charging or discharging of the battery cells.

[0063] A battery cell consists of a casing, electrode assembly, and electrolyte. The casing houses the electrode assembly and electrolyte. The electrode assembly comprises 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.

[0064] In recent years, new energy vehicles have experienced rapid development. In the field of electric vehicles, the power battery, as the power source, plays an irreplaceable and crucial role. A battery consists of a casing and multiple individual battery cells housed within it. As a core component of new energy vehicles, the battery faces high requirements in terms of both safety and cycle life.

[0065] The inventors discovered that in typical power batteries, multiple battery cells are usually arranged in an array within the battery casing to achieve sufficient power. However, these cells generate significant heat during continuous charging and discharging, causing the internal temperature of the battery to rise. The stacked structure of multiple cells exacerbates this phenomenon, severely impacting battery performance and lifespan, and even posing significant safety hazards for consumers. Therefore, thermal management components are typically installed inside the battery, positioned to one side of each battery cell. These components have internal channels for heat exchange media to cool or heat the battery cells. However, this type of thermal management component has significant manufacturing tolerances, making it difficult to ensure precise assembly between the component and the battery cells.

[0066] Based on the above considerations, in order to solve the problem of low manufacturing precision of existing thermal management components, the inventors, after in-depth research, designed a thermal management component. The thermal management component includes two straight walls and two bent walls. The two straight walls are arranged opposite each other along a first direction, and the two bent walls are respectively connected to the two ends of the straight walls along a second direction perpendicular to the first direction. The two bent walls and the two straight walls enclose a receiving space for accommodating the heat exchange medium.

[0067] In this type of thermal management component, the thermal management component has two straight walls arranged opposite each other along a first direction, and the same end of the two straight walls is connected by a bent wall to enclose and form a receiving space for accommodating the heat exchange medium. This enables the thermal management component to perform temperature management. When the thermal management component with this structure is compressed along the first direction during the manufacturing process, the bent wall is easily deformed. This compression can absorb the manufacturing tolerances of the thermal management component, thereby controlling the dimensions of the thermal management component in the first direction. This can effectively improve the manufacturing accuracy of the thermal management component, ensuring the assembly accuracy between the thermal management component and the battery cell, and facilitating the thermal management component to regulate the temperature of the battery cell.

[0068] The thermal management components disclosed in this application can be used, but are not limited to, in electrical devices such as vehicles, ships, or aircraft. A power system incorporating the thermal management system and battery disclosed in this application can be used to form the electrical device. This helps reduce manufacturing tolerances of the thermal management components and improves the assembly accuracy between the thermal management components and battery cells.

[0069] This application provides an electrical device that uses a battery as a power source. The electrical device can be, but is not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0070] For ease of explanation, the following embodiments will be described using a vehicle 1000 as an example of an electrical device according to an embodiment of this application.

[0071] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle 1000 provided in some embodiments of this application. The vehicle 1000 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery 100 is disposed inside the vehicle 1000, and the battery 100 can be located at the bottom, front, or rear of the vehicle 1000. The battery 100 can be used to power the vehicle 1000; for example, the battery 100 can serve as the operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery 100 to supply power to the motor 300, for example, to meet the power needs of the vehicle 1000 during startup, navigation, and driving.

[0072] In some embodiments of this application, the battery 100 can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0073] Please refer to Figure 2 , Figure 2 This is an exploded view of the structure of a battery 100 provided in some embodiments of this application. The battery 100 includes a housing 10 and a plurality of battery cells 20, the battery cells 20 being housed within the housing 10.

[0074] The housing 10 provides assembly space for the battery cell 20, and can adopt various structures. In some embodiments, the housing 10 may include a first housing body 11 and a second housing body 12, which overlap each other, and together define an assembly space for accommodating the battery cell 20. The second housing body 12 may be a hollow structure open at one end, and the first housing body 11 may be a plate-like structure, with the first housing body 11 covering the open side of the second housing body 12 so that the first housing body 11 and the second housing body 12 together define the assembly space; alternatively, the first housing body 11 and the second housing body 12 may both be hollow structures open on one side, with the open side of the first housing body 11 covering the open side of the second housing body 12. Of course, the housing 10 formed by the first housing body 11 and the second housing body 12 can be of various shapes, such as a cylinder, a cuboid, etc.

[0075] In battery 100, multiple battery cells 20 can be connected in series, parallel, or in a mixed configuration. A mixed configuration means that multiple battery cells 20 are connected in both series and parallel configurations. Multiple battery cells 20 can be directly connected in series, parallel, or in a mixed configuration, and then the entire assembly of the multiple battery cells 20 is housed within the housing 10. Alternatively, battery 100 can also consist of multiple battery cells 20 first connected in series, parallel, or in a mixed configuration to form a battery module, and then multiple battery modules are connected in series, parallel, or in a mixed configuration to form a whole, which is also housed within the housing 10. Battery 100 may also include other structures; for example, it may include a busbar component for electrical connection between the multiple battery cells 20.

[0076] Optionally, the battery 100 may also include a thermal management system, which is located inside the housing 10. The thermal management system may include multiple thermal management components 30, which are used to manage the temperature of the battery cells 20 to cool or heat the battery cells 20.

[0077] Reference Figure 2 Please refer to further details. Figure 3 , Figure 3 This is a schematic diagram illustrating the assembly of the thermal management component 30 and the battery cell 20 according to some embodiments of this application. The battery 100 includes multiple rows of battery cells 20, which are arranged along a first direction X. Each row of battery cells 20 includes multiple battery cells 20 arranged along a third direction Z. It should be noted that in other embodiments, the battery 100 may only include multiple battery cells 20 arranged along the first direction X, that is, the battery 100 includes only one column of multiple battery cells 20 arranged along the first direction X.

[0078] Each battery cell 20 can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited to these. The battery cell 20 can be cylindrical, flat, cuboid, or other shapes. For example, in... Figure 3 In the figure, the shape of the battery cell 20 is a cuboid. Correspondingly, the first direction X is the thickness direction of the battery cell 20, and the third direction Z is the length direction of the battery cell.

[0079] In some embodiments, the thermal management system includes a plurality of thermal management components 30, with one thermal management component 30 disposed between two adjacent rows of battery cells 20 along a first direction X. The thermal management component 30 is configured to exchange heat with the battery cells 20 to manage the temperature of the battery cells 20.

[0080] Reference Figure 3 Please refer to further details. Figure 4 , Figure 4 This is a schematic diagram of the structure of a thermal management component 30 provided in some embodiments of this application. The thermal management component 30 includes a thermal management element 31, a first busbar 32, and a second busbar 33. Along the third direction Z, the first busbar 32 and the second busbar 33 are respectively connected to both ends of the thermal management element 31.

[0081] Wherein, the first direction X is the thickness direction of the thermal management component 31, the second direction Y is the width direction of the thermal management component 31, and the third direction Z is the length direction of the thermal management component 31, that is, the extension direction of the thermal management component 31.

[0082] The first manifold 32 has a medium inlet 321 for the flow of heat exchange medium, and the second manifold 33 has a medium outlet 331 for the flow of heat exchange medium. Both the medium inlet 321 and the medium outlet 331 are connected to the interior of the thermal management component 31 to enable the heat exchange medium to flow within the thermal management component 31, thereby enabling heat exchange with the battery cell 20 and managing the temperature of the battery cell 20.

[0083] Optionally, the multiple thermal management components 30 of the thermal management system can be connected in series or in parallel. If the medium inlets 321 of the first manifolds 32 of the multiple thermal management components 30 are connected to each other, and the medium outlets 331 of the second manifolds 33 of the multiple thermal management components 30 are connected to each other, then the multiple thermal management components 30 are connected in parallel; if the medium inlet 321 of the first manifold 32 of one thermal management component 30 is connected to the medium outlet 331 of the second manifold 33 of another thermal management component 30 in sequence, then the multiple thermal management components 30 are connected in series.

[0084] It should be noted that in a structure in which multiple thermal management components 30 are connected in series or in parallel, one thermal management component 30 can be directly connected to another thermal management component 30, or they can be connected through other components, such as connecting pipes, to achieve a series or parallel structure of multiple thermal management components 30.

[0085] For example, the heat exchange medium can be a gas, such as air or hydrogen, or a liquid, such as water, a salt solution, or liquid nitrogen. Of course, in other embodiments, the heat exchange medium can also be a solid, such as paraffin wax. The heat exchange function can be achieved through the change of the state of the heat exchange medium. For example, when paraffin wax changes from solid to liquid, it can absorb heat to achieve the effect of cooling the battery cell 20.

[0086] According to some embodiments of this application, refer to Figure 3 and Figure 4 Please refer to further details. Figure 5 , Figure 6 and Figure 7 , Figure 5 This is a schematic diagram of the structure of the thermal management component 31 provided in some embodiments of this application. Figure 6 for Figure 5 A partial enlarged view of point A of the thermal management component 31 shown. Figure 7 This is a front view of a thermal management component 31 provided in some embodiments of this application in a third direction Z. This application provides a thermal management component 31, which includes two straight walls 311 and two bent walls 312. The two straight walls 311 are disposed opposite each other along a first direction X. The two bent walls 312 are respectively connected to the two ends of the straight walls 311 along a second direction Y, where the second direction Y is perpendicular to the first direction X. The two bent walls 312 and the two straight walls 311 enclose a receiving space 313 for receiving a heat exchange medium.

[0087] Among them, the two straight walls 311 are arranged opposite each other along the first direction X, that is, the two straight walls 311 are spaced apart and facing each other along the first direction X, and the first direction X is the thickness direction of the straight wall 311. In other words, the two straight walls 311 are spaced apart and parallel to each other.

[0088] Two bent walls 312 are connected to the two ends of the straight wall 311 along the second direction Y. The two bent walls 312 and the two straight walls 311 enclose and form a receiving space 313. That is, the same end of the two straight walls 311 is connected through a bent wall 312. In other words, a straight wall 311, a bent wall 312, another straight wall 311 and another bent wall 312 are connected end to end in sequence to enclose and form a receiving space 313 for containing the heat exchange medium, so that the heat exchange medium can flow in the receiving space 313 to regulate the temperature of the battery cell 20.

[0089] The bent wall 312 is a curved structure connected between two straight walls 311. The bending direction of the bent wall 312 can be various. For example, the bent wall 312 can be bent away from the other bent wall 312 in the second direction Y, or it can be bent closer to the other bent wall 312 in the second direction Y.

[0090] The thermal management component 31 has two straight walls 311 arranged opposite each other along the first direction X, and the same end of the two straight walls 311 is connected by a bent wall 312 to enclose and form a receiving space 313 for accommodating the heat exchange medium. This enables the thermal management component 31 to perform temperature management. With this structure, when the thermal management component 31 is compressed along the first direction X during manufacturing, the bent wall 312 is easily deformed. This compression can absorb the manufacturing tolerance of the thermal management component 31, thereby controlling the size of the thermal management component 31 in the first direction X. This can effectively improve the manufacturing accuracy of the thermal management component 31, ensuring the assembly accuracy between the thermal management component 31 and the battery cell 20, which is beneficial for the thermal management component 31 to regulate the temperature of the battery cell 20.

[0091] In some embodiments, see Figure 6 and Figure 7 As shown, along the second direction Y, the bent wall 312 bends in a direction away from the receiving space 313.

[0092] In other words, the bent wall 312 bends away from the other bent wall 312 in the second direction Y, so that the bent wall 312 protrudes outward at both ends of the thermal management component 31.

[0093] By setting the bent wall 312 to bend in the second direction Y away from the receiving space 313, this structure is easy to manufacture and helps to reduce the manufacturing difficulty of the thermal management component 31. On the other hand, it can effectively alleviate the phenomenon of cracking at the connection between the bent wall 312 and the straight wall 311 when compressing and absorbing manufacturing tolerances of the thermal management component 31.

[0094] According to some embodiments of this application, refer to Figure 6 and Figure 7 Please refer to further details. Figure 8 , Figure 8 for Figure 7The diagram shows a partial enlarged view of point B on the thermal management component 31. The bent wall 312 includes a first segment 3121 and two second segments 3122, which are connected sequentially. The two second segments 3122 are respectively connected to two straight walls 311. The second segment 3122 is inclined relative to the straight wall 311 to which it is connected, and along the first direction X, the first segment 3121 is located between the two straight walls 311.

[0095] Among them, a second segment 3122, a first segment 3121 and another second segment 3122 are connected in sequence, and the two second segments 3122 are respectively connected to two straight walls 311. That is, the two ends of the first segment 3121 in the first direction X are respectively connected to a straight wall 311 through a second segment 3122.

[0096] The second segment 3122 is inclined relative to the flat wall 311 connected to it, and along the first direction X, the first segment 3121 is located between the two flat walls 311. That is, the second segment 3122 is an inclined structure set at an obtuse angle with the flat wall 311, and the second segment 3122 is inclined in the first direction X toward the other second segment 3122, so that the first segment 3121 can be located between the two flat walls 311 in the first direction X.

[0097] The bent wall 312 has a second segment 3122 connected to two straight walls 311 respectively and a first segment 3121 connected between the two second segments 3122. The second segment 3122 bends towards the other second segment 3122 in the first direction X, so that the distance between the two second segments 3122 gradually decreases towards the first segment 3121 in the second direction Y, so that the bent wall 312 forms a contracted structure. This allows the second segment 3122 to deform relative to the first segment 3121 when compressing and absorbing manufacturing tolerances in the thermal management component 31, so as to facilitate the compression and absorption manufacturing tolerances in the thermal management component 31.

[0098] According to some embodiments of this application, see Figure 7 and Figure 8 As shown, the wall thickness of the straight wall 311 is L1, and the wall thickness of the first segment 3121 is L2, satisfying that L2 > L1.

[0099] L2 > L1, meaning the minimum wall thickness of the first segment 3121 is greater than the wall thickness of the straight wall 311.

[0100] Among them, the wall thickness L1 of the straight wall 311 is the thickness in the first direction X.

[0101] If the first segment 3121 is a plate-like structure extending along the first direction X, then the wall thickness L2 of the first segment 3121 is the thickness of the first segment 3121 in the second direction Y; if the first segment 3121 is a curved arc-shaped structure, then the wall thickness L2 of the first segment 3121 is the thickness of the first segment 3121 in the direction of its radius of curvature, that is, the wall thickness L2 of the first segment 3121 is the thickness of the first segment 3121 in the normal direction of the tangent to the surface facing the receiving space 313.

[0102] By setting the wall thickness of the first segment 3121 of the bent wall 312 to be greater than that of the straight wall 311, the structural strength and deformation resistance of the first segment 3121 of the bent wall 312 are increased. This effectively alleviates the phenomenon of deformation or excessive change in the radius of curvature of the first segment 3121 of the bent wall 312 when the thermal management component 31 is compressed to absorb manufacturing tolerances. This helps to ensure that the first segment 3121 of the bent wall 312 maintains its original structural shape, thereby reducing the phenomenon of over-compression or crushing of the thermal management component 31 and reducing the risk of the bent wall 312 being crushed or cracked during the compression process of the thermal management component 31.

[0103] According to some embodiments of this application, please continue to refer to Figure 7 and Figure 8 As shown, along the second direction Y, the first segment 3121 is an arc-shaped structure that curves away from the receiving space 313.

[0104] In other words, the first segment 3121 is an arc-shaped structure, and the first segment 3121 bends away from the receiving space 313 in the second direction Y.

[0105] By setting the first segment 3121 as an outwardly curved arc structure, it is easier to connect the first segment 3121 and the second segment 3122, which helps to reduce manufacturing difficulty. On the other hand, it can achieve an arc transition between the first segment 3121 and the second segment 3122, so as to alleviate the phenomenon that the radius of curvature at the connection between the first segment 3121 and the second segment 3122 is too small. This can effectively reduce the risk of the connection between the first segment 3121 and the second segment 3122 being crushed or cracked during the compression of the thermal management component 31.

[0106] According to some embodiments of this application, see Figure 8 As shown, the wall thickness of the second segment 3122 gradually increases from the end connected to the straight wall 311 to the end connected to the first segment 3121.

[0107] The second segment 3122 is connected to one end of the straight wall 311 with the same wall thickness as the straight wall 311.

[0108] By setting the wall thickness of the second segment 3122 to gradually increase from the end connecting the straight wall 311 to the end connecting the first segment 3121, it is easier to manufacture the wall thickness of the first segment 3121 to be greater than the wall thickness of the straight wall 311, which helps to reduce the manufacturing difficulty.

[0109] According to some embodiments of this application, please refer to Figure 9 and Figure 10 , Figure 9 A front view of the thermal management component 31 provided in some embodiments of this application in a third-party direction Z. Figure 10 for Figure 9 The diagram shows a partial enlarged view of point C of the thermal management component 31. The thermal management component 31 may also include a reinforcing portion 314. Along the first direction X, the reinforcing portion 314 is disposed between the two second segments 3122.

[0110] The reinforcing part 314 is disposed between the two second segments 3122, that is, along the first direction X, the two second segments 3122 are connected by the reinforcing part 314 so that the reinforcing part 314 can support the two second segments 3122.

[0111] Alternatively, the reinforcing part 314 can be connected in various ways. For example, the reinforcing part 314 can be connected to one of the two second segments 3122, or it can be connected to both second segments 3122, or it can be connected to the first segment 3121.

[0112] It should be noted that in the two embodiments where the second segment 3122 is provided with the reinforcing part 314, the wall thickness of the first segment 3121 can be set to be greater than the wall thickness of the straight wall 311, or the wall thickness of the first segment 3121 can be set to be equal to the wall thickness of the straight wall 311. For example, in... Figure 10 In the middle, the wall thickness of the first segment 3121 is greater than the wall thickness of the straight wall 311, and a reinforcing part 314 is provided between the two second segments 3122.

[0113] By providing a reinforcing part 314 between the two second segments 3122 along the first direction X, the reinforcing part 314 can provide a certain support for the two second segments 3122, thereby increasing the deformation resistance of the first segment 3121 of the bent wall 312. Thus, when the thermal management component 31 is subjected to compression absorption manufacturing tolerances, the phenomenon of deformation or excessive change in the radius of curvature of the first segment 3121 of the bent wall 312 can be effectively alleviated. This helps to ensure that the first segment 3121 of the bent wall 312 maintains its original structural shape, thereby reducing the phenomenon of over-compression or crushing of the thermal management component 31, and reducing the risk of the bent wall 312 being crushed or cracked during the compression process of the thermal management component 31.

[0114] In some embodiments, see Figure 9 and Figure 10 As shown, along the first direction X, one end of the reinforcing part 314 is connected to one of the two second segments 3122, and the other end is spaced apart from the other of the two second segments 3122.

[0115] In other words, the reinforcing part 314 is connected to only one of the two second segments 3122, and there is a gap between it and the other second segment 3122 in the first direction X.

[0116] By configuring the reinforcing part 314 to be connected to one second segment 3122 and spaced apart from another second segment 3122, the reinforcing part 314 can provide a compression allowance while supporting the two second segments 3122, so as to allow for compression absorption of manufacturing tolerances in the thermal management component 31.

[0117] In some embodiments, please refer to Figure 11 and Figure 12 , Figure 11 A front view of the thermal management component 31 provided in some embodiments of this application in a third-party direction Z. Figure 12 for Figure 11 This is a partial enlarged view of point D of the thermal management component 31 shown. Along the first direction X, both ends of the reinforcing part 314 are connected to the two second segments 3122, respectively. That is, the reinforcing part 314 is connected to both second segments 3122.

[0118] By connecting the two ends of the reinforcing part 314 to the two second segments 3122 respectively, this structure can effectively improve the connection strength between the reinforcing part 314 and the bent wall 312, which is beneficial to improving the support effect of the reinforcing part 314 on the two second segments 3122.

[0119] According to some embodiments of this application, please refer to Figure 10 and Figure 12 As shown, the reinforcing part 314 and the first segment 3121 are spaced apart along the second direction Y. That is, there is a gap between the reinforcing part 314 and the first segment 3121 in the second direction Y.

[0120] By spacing the reinforcing part 314 and the first segment 3121 in the second direction Y, a gap is created between the reinforcing part 314 and the first segment 3121 in the second direction Y, which helps to reduce the manufacturing difficulty of the thermal management component 31.

[0121] According to some embodiments of this application, refer to Figure 6 and Figure 7 Please refer to further details. Figure 13 , Figure 13 for Figure 7The diagram shows a partial enlarged view of point E of the thermal management component 31. The thermal management component 31 may also include a plurality of partitions 315, which are spaced apart along the second direction Y. The partitions 315 are inclinedly disposed between and connected to the two straight walls 311. The partitions 315 are configured to divide the accommodating space 313 into a plurality of medium flow channels 3131 for accommodating the heat exchange medium.

[0122] The partition 315 is inclinedly disposed between and connected to the two straight walls 311, that is, the partition 315 and the straight walls 311 are disposed at an angle, and the two ends of the partition 315 in the first direction X are respectively connected to the two straight walls 311. The partition 315 extends in the third direction Z to divide the accommodating space 313 into a plurality of medium flow channels 3131 extending in the third direction Z, and the plurality of medium flow channels 3131 are arranged in the second direction Y.

[0123] By providing a plurality of partitions 315 spaced at intervals along the second direction Y within the receiving space 313 of the heat management component 31, the receiving space 313 is divided into a plurality of medium flow channels 3131 for the flow of heat exchange medium, thereby facilitating the control of the flow velocity and flow rate of the heat exchange medium within the heat management component 31. Furthermore, by obliquely arranging the partitions 315 and connecting them between two straight walls 311, the partitions 315 are easily deformable when the heat management component 31 is compressed and subjected to manufacturing tolerances along the first direction X, thereby reducing the difficulty of compressing the heat management component 31.

[0124] According to some embodiments of this application, please refer to Figure 13 As shown, the partition 315 has opposing first surfaces 3151 and second surfaces 3152 in its thickness direction. Two straight walls 311 include a first straight wall 3111 and a second straight wall 3112. The first straight wall 3111 has a third surface 3111a facing the medium flow channel 3131, and the second straight wall 3112 has a fourth surface 3112a facing the medium flow channel 3131. The first surface 3151 forms acute and obtuse angles with the third surface 3111a and the fourth surface 3112a, respectively, while the second surface 3152 forms obtuse and acute angles with the third surface 3111a and the fourth surface 3112a, respectively. The first surface 3151 and the third surface 3111a are connected by a first chamfered surface 316; and / or, the second surface 3152 and the fourth surface 3112a are connected by a second chamfered surface 317.

[0125] The first straight wall 3111 has a third surface 3111a facing the medium flow channel 3131, and the second straight wall 3112 has a fourth surface 3112a facing the medium flow channel 3131. That is, the surface of the first straight wall 3111 facing the second straight wall 3112 in the first direction X is the third surface 3111a, and the surface of the second straight wall 3112 facing the first straight wall 3111 in the first direction X is the fourth surface 3112a.

[0126] The first surface 3151 is set at an acute angle to the third surface 3111a and the fourth surface 3112a, respectively. That is, the first surface 3151 of the partition 315 on one side of its thickness direction is set at an acute angle to the two straight walls 311, respectively. Similarly, the second surface 3152 is set at an obtuse angle to the third surface 3111a and the fourth surface 3112a, respectively. That is, the second surface 3152 of the partition 315 on the other side of its thickness direction is set at an obtuse angle to the two straight walls 311, respectively.

[0127] The first surface 3151 and the third surface 3111a are connected by a first chamfered surface 316, meaning that a chamfer is formed between the first surface 3151 on one side of the partition portion 315 in the thickness direction and the third surface 3111a of the first straight wall 3111, which is set at an acute angle. Similarly, the second surface 3152 and the fourth surface 3112a are connected by a second chamfered surface 317, meaning that a chamfer is formed between the second surface 3152 on the other side of the partition portion 315 in the thickness direction and the fourth surface 3112a of the second straight wall 3112, which is set at an acute angle.

[0128] For example, both the first chamfered surface 316 and the second chamfered surface 317 are arc surfaces. Of course, in other embodiments, the first chamfered surface 316 and the second chamfered surface 317 may also be planes.

[0129] The two surfaces of the partition 315 and the straight wall 311, which are set at an acute angle, are connected by a chamfered surface to increase the thickness of the part of the partition 315 connected to the straight wall 311 in the second direction Y. This can improve the connection stability and reliability between the partition 315 and the straight wall 311, and alleviate the phenomenon of cracks appearing between the partition 315 and the straight wall 311.

[0130] According to some embodiments of this application, see Figure 7 and Figure 13 As shown, along the first direction X, a support portion 318 protrudes from the side of the straight wall 311 facing the receiving space 313, and the size of the support portion 318 is smaller than the distance between the two straight walls 311.

[0131] The size of the support portion 318 is smaller than the distance between the two straight walls 311. That is, the support portion 318 protrudes from the surface of one straight wall 311 facing the other straight wall 311 and is spaced apart from the other straight wall 311 in the first direction X.

[0132] Optionally, the support portion 318 disposed on the straight wall 311 can be one or more. For example, in... Figure 7 In this configuration, there is one support portion 318 provided on the flat wall 311. If there are multiple support portions 318 provided on the flat wall 311, the multiple support portions 318 are arranged at intervals along the second direction Y.

[0133] By providing a support portion 318 on the side of the flat wall 311 facing the receiving space 313, and the dimension of the support portion 318 in the first direction X is smaller than the distance between the two flat walls 311, the heat management component 31 with this structure can provide a certain support to the two flat walls 311 when the heat management component 31 is compressed and absorbed to meet manufacturing tolerances. This can alleviate the phenomenon of excessive compression or crushing of the heat management component 31, thereby helping to ensure the smooth flow of the heat exchange medium in the receiving space 313.

[0134] According to some embodiments of this application, refer to Figure 14 , Figure 14 This is a front view of the thermal management component 31 provided in some other embodiments of this application in the third direction Z. Each of the two flat walls 311 is provided with a support portion 318, and the projections of the support portions 318 on the two flat walls 311 do not overlap along the first direction X.

[0135] In the first direction X, the projections of the support portions 318 on the two straight walls 311 do not overlap, that is, in the second direction Y, the support portions 318 on the two straight walls 311 are misaligned.

[0136] It should be noted that in embodiments where both straight walls 311 are provided with support portions 318, the support portion 318 provided on the straight wall 311 can be one or multiple. For example, in... Figure 14 In the middle, multiple support parts 318 are provided on each of the two straight walls 311, and the multiple support parts 318 on each straight wall 311 are arranged at intervals along the second direction Y.

[0137] By providing support portions 318 on both flat walls 311, and ensuring that the projections of the support portions 318 on the two flat walls 311 do not overlap in the first direction X, the support effect of the support portions 318 on the two flat walls 311 is improved, thereby further reducing the risk of the thermal management component 31 being over-compressed or crushed.

[0138] According to some embodiments of this application, see Figure 3 , Figure 4 and Figure 5 As shown in the illustration, this application embodiment also provides a thermal management component 30, which includes a first busbar 32, a second busbar 33, and the aforementioned thermal management component 31. Along the third direction Z, the first busbar 32 and the second busbar 33 are respectively connected to both ends of the thermal management component 31, with the first direction X, the second direction Y, and the third direction Z being perpendicular to each other. The first busbar 32 and the second busbar 33 each have a medium inlet 321 and a medium outlet 331, both of which communicate with the accommodating space 313.

[0139] Wherein, the first direction X is the thickness direction of the thermal management component 31, the second direction Y is the width direction of the thermal management component 31, and the third direction Z is the length direction of the thermal management component 31.

[0140] In an embodiment where a partition 315 is provided within the accommodating space 313 of the thermal management component 31, the medium inlet 321 of the first manifold 32 and the medium outlet 331 of the second manifold 33 are respectively connected to the two ends of the multiple medium channels 3131 in the third direction Z to serve as a confluence, thereby facilitating the simultaneous injection of heat exchange medium into the multiple medium channels 3131 or the simultaneous outflow of heat exchange medium from the multiple medium channels 3131.

[0141] The thermal management component 30 is also provided with a first busbar 32 and a second busbar 33 connected to the two ends of the thermal management component 31 in the third direction Z. The first busbar 32 and the second busbar 33 are respectively provided with a medium inlet 321 and a medium outlet 331. By connecting the two ends of the accommodating space 313 to the medium inlet 321 and the medium outlet 331 respectively, the heat exchange medium can flow into or out of the accommodating space 313, so as to realize the thermal management function of the thermal management component 30.

[0142] According to some embodiments of this application, see Figure 2 and Figure 3 As shown, this application embodiment also provides a battery 100, which includes a housing 10, a battery cell 20, and a thermal management component 30 according to any of the above embodiments. The battery cell 20 is housed within the housing 10, and the thermal management component 30 is disposed within the housing 10. The thermal management component 30 is used to regulate the temperature of the battery cell 20.

[0143] For example, in Figure 3 In this configuration, the battery cell 20 is rectangular in shape. Multiple battery cells 20 are arranged in an array, wherein the battery 100 includes multiple rows of battery cells 20, which are arranged along a first direction X, and each row of battery cells 20 includes multiple battery cells 20 arranged along a third direction Z.

[0144] According to some embodiments of this application, see Figure 3 As shown, the battery cell 20 has a first side surface 21, which is the surface with the largest area on the outer surface of the battery cell 20, and the first side surface 21 abuts against the flat wall 311.

[0145] In this embodiment, the first side surface 21 abuts against the flat wall 311 of the thermal management component 31. This can be a direct abutment between the first side surface 21 and the flat wall 311 of the thermal management component 31, meaning the surface with the largest area on the outer surface of the battery cell 20 is directly attached to the flat wall 311 of the thermal management component 31. Alternatively, in some embodiments, the first side surface 21 can abut against the flat wall 311 of the thermal management component 31 indirectly, meaning the surface with the largest area on the outer surface of the battery cell 20 is attached to the flat wall 311 of the thermal management component 31 via a thermally conductive component, such as thermally conductive adhesive or a thermally conductive pad.

[0146] It should be noted that the battery cell 20 has a cuboid structure, and the first side 21 is the surface with the largest area on the outer surface of the battery cell 20. That is, the first side 21 is the outer surface of the battery cell 20 on one side in the thickness direction. In other words, the thermal management component 30 is arranged between two adjacent rows of battery cells 20 along the thickness direction of the battery cell 20, and the straight wall 311 of the thermal management component 31 of the thermal management component 30 abuts against the first side 21 of the battery cell 20 to realize heat exchange between the battery cell 20 and the thermal management component 31.

[0147] Among them, the first direction X is consistent with the thickness direction of the battery cell 20, the second direction Y is consistent with the width direction of the battery cell 20, and the third direction Z is consistent with the length direction of the battery cell 20.

[0148] By setting the flat wall 311 of the thermal management component 31 to abut against the first side 21 of the battery cell 20, that is, by setting the thermal management component 31 on the side with the largest surface area of ​​the battery cell 20, it is possible to ensure that the battery cell 20 and the thermal management component 31 have sufficient heat exchange area, which is beneficial to improving the thermal management capability of the thermal management component 31 for the battery cell 20, and thus effectively reducing the safety hazards caused by temperature rise during the use of the battery 100.

[0149] According to some embodiments of this application, this application also provides an electrical device, which includes a battery 100 of any of the above schemes, and the battery 100 is used to provide electrical energy to the electrical device.

[0150] The electrical device can be any of the aforementioned devices or systems that use battery 100.

[0151] According to some embodiments of this application, see Figures 4 to 8 as well as Figure 13 As shown, this application provides a thermal management component 31, which includes two straight walls 311, two bent walls 312, multiple partitions 315, and a support 318. The two straight walls 311 are arranged opposite each other along a first direction X. Along a second direction Y, the two bent walls 312 are respectively connected to the two ends of the straight walls 311, and the bent walls 312 are bent in a direction away from the receiving space 313. The second direction Y is perpendicular to the first direction X. The two bent walls 312 and the two straight walls 311 enclose and form the receiving space 313, which is used to receive the heat exchange medium. The bent wall 312 includes a first segment 3121 and two second segments 3122. One second segment 3122, the first segment 3121, and the other second segment 3122 are connected sequentially. The first segment 3121 is an arc-shaped structure bent along the second direction Y in a direction away from the receiving space 313. The two second segments 3122 are respectively connected to two straight walls 311. The second segment 3122 is inclined relative to the straight wall 311 it is connected to, and along the first direction X, the first segment 3121 is located between the two straight walls 311. The wall thickness of the straight wall 311 is greater than the wall thickness of the first segment 3121, and the wall thickness of the second segment 3122 gradually increases from the end connected to the straight wall 311 to the end connected to the first segment 3121. Multiple partitions 315 are arranged at intervals along the second direction Y. The partitions 315 are inclined between and connected to the two straight walls 311. The partitions 315 are configured to divide the receiving space 313 into multiple medium flow channels 3131 for receiving heat exchange medium. The two surfaces of the partitions 315 and the straight walls 311, which are set at acute angles, are connected by chamfered surfaces. Along the first direction X, a support portion 318 protrudes from the side of the straight wall 311 facing the receiving space 313. The size of the support portion 318 is smaller than the distance between the two straight walls 311.

[0152] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0153] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A thermal management component, characterized in that, include: Two straight walls are arranged opposite each other along the first direction; as well as Two bent walls are respectively connected to the two ends of the straight wall along a second direction, which is perpendicular to the first direction. The two bent walls and the two straight walls enclose a receiving space for accommodating the heat exchange medium. Along the second direction, the bent wall bends away from the receiving space. The bent wall includes a first segment and two second segments. One second segment, the first segment, and the other second segment are connected in sequence. The two second segments are respectively connected to two straight walls. The second segment is inclined relative to the straight wall it is connected to. Along the first direction, the first segment is located between the two straight walls. The wall thickness of the straight wall is L1, and the wall thickness of the first segment is L2, satisfying that L2 > L1. The wall thickness of the second segment gradually increases from the end connected to the straight wall to the end connected to the first segment.

2. The thermal management component according to claim 1, characterized in that, Along the second direction, the first segment is an arc-shaped structure that curves away from the receiving space.

3. The thermal management component according to claim 1, characterized in that, The thermal management component also includes: A reinforcing portion is disposed between the two second segments along the first direction.

4. The thermal management component according to claim 3, characterized in that, Along the first direction, one end of the reinforcing part is connected to one of the two second segments, and the other end is spaced apart from the other of the two second segments.

5. The thermal management component according to claim 3, characterized in that, Along the first direction, the two ends of the reinforcing part are respectively connected to the two second segments.

6. The thermal management component according to claim 3, characterized in that, Along the second direction, the reinforcing portion is spaced apart from the first segment.

7. The thermal management component according to claim 1, characterized in that, The thermal management component also includes: Multiple partitions are spaced apart along the second direction. The partitions are inclinedly disposed between and connected to the two straight walls. The multiple partitions are configured to divide the accommodating space into multiple medium flow channels for accommodating the heat exchange medium.

8. The thermal management component according to claim 7, characterized in that, The partition has a first surface and a second surface opposite each other in its thickness direction, and the two straight walls include a first straight wall and a second straight wall. The first straight wall has a third surface facing the medium flow channel, and the second straight wall has a fourth surface facing the medium flow channel. The first surface is set at an acute angle and an obtuse angle with the third surface and the fourth surface, respectively; the second surface is set at an obtuse angle and an acute angle with the third surface and the fourth surface, respectively. Wherein, the first surface and the third surface are connected by a first chamfered surface; and / or, the second surface and the fourth surface are connected by a second chamfered surface.

9. The thermal management component according to any one of claims 1-8, characterized in that, Along the first direction, a support portion is provided on the side of the flat wall facing the accommodating space, and the size of the support portion is smaller than the distance between the two flat walls.

10. The thermal management component according to claim 9, characterized in that, Both of the two straight walls are provided with the support portion, and the projections of the support portions on the two straight walls do not overlap along the first direction.

11. A thermal management component, characterized in that, include: The thermal management component as described in any one of claims 1-10; The first busbar and the second busbar are respectively connected to the two ends of the thermal management component along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other; The first and second busbars each have a medium inlet and a medium outlet, and both the medium inlet and the medium outlet are connected to the accommodating space.

12. A battery, characterized in that, include: Box; The battery cell is housed within the casing; as well as The thermal management component as described in claim 11, wherein the thermal management component is disposed within the housing, and the thermal management component is used to regulate the temperature of the individual battery cells.

13. The battery according to claim 12, characterized in that, The battery cell has a first side surface, which is the surface with the largest area on the outer surface of the battery cell, and the first side surface abuts against the flat wall.

14. An electrical appliance, characterized in that, Includes the battery as described in claim 12 or 13, the battery being used to provide electrical energy.

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