Heat exchange assembly, box body, battery and electric device

Abstract

The invention provides a heat exchange assembly, a box body, a battery and an electric device. The heat exchange assembly comprises a heat exchange piece, a flow collecting piece and a sleeve. The heat exchange piece is provided with a flow channel extending in the first direction. The flow collecting pieces are arranged at the two ends of the heat exchange piece in the first direction and provided with fluid inlets and outlets, and the fluid inlets and outlets communicate with the flow channels. The sleeve is sleeved with at least one of the heat exchange piece and the flow collecting piece and is connected with the heat exchange piece and the flow collecting piece. According to the heat exchange assembly provided by the invention, the connection strength of the current collecting piece and the heat exchange piece is favorably improved, the overall structural strength of the heat exchange assembly is favorably improved, and the reliability of the battery is favorably improved.

Description

Technical Field

[0001] The present application relates to the technical field of batteries, and more particularly, to a heat exchange component, a box body, a battery, and an electrical device. Background Art

[0002] Batteries are widely used in electronic devices, such as mobile phones, laptops, battery cars, electric vehicles, electric airplanes, electric ships, electric toy cars, electric toy ships, electric toy airplanes, and electric tools, etc. Battery cells may include nickel-cadmium battery cells, nickel-metal hydride battery cells, lithium-ion battery cells, and secondary alkaline zinc-manganese battery cells, etc.

[0003] In the development of battery technology, in addition to improving the performance of batteries, how to improve the reliability of batteries is also an issue that cannot be ignored. Therefore, how to improve the reliability of batteries is a technical issue that is continuously improved in battery technology. Summary of the Invention

[0004] Embodiments of the present application provide a heat exchange component, a box body, a battery, and an electrical device, which can improve the reliability of the battery.

[0005] In a first aspect, the heat exchange component provided by the embodiments of the present application includes a heat exchange member, a current collector, and a sleeve; the heat exchange member has a flow channel extending in a first direction; the current collector is provided at both ends of the heat exchange member along the first direction, and the current collector has a fluid inlet and outlet, and the fluid inlet and outlet communicate with the flow channel; the sleeve is sleeved with at least one of the heat exchange member and the current collector, and connects the heat exchange member and the current collector.

[0006] For the heat exchange component provided by the embodiments of the present application, by sleeving the sleeve with at least one of the current collector and the heat exchange member, it is beneficial to improve the connection strength between the current collector and the heat exchange member, and is beneficial to improve the overall structural strength of the heat exchange component. In this way, it is beneficial to reduce the risk of leakage of the flowing medium caused by the connection failure between the current collector and the heat exchange member, improve the reliability of the heat exchange component. When the heat exchange component is applied to a battery, it is beneficial to improve the reliability of heat exchange between the heat exchange component and the battery cell, and further beneficial to improve the reliability of the battery.

[0007] In some embodiments, the sleeve includes a first sub-sleeve and a second sub-sleeve. The first sub-sleeve is sleeved with the end of the heat exchange member along the first direction, and the second sub-sleeve is sleeved with one end of the current collector facing the heat exchange member. The first sub-sleeve and the second sub-sleeve are connected to each other. This is beneficial to further improve the connection strength between the current collector and the heat exchange member, and further improve the overall structural strength of the heat exchange component. In the scenario where the heat exchange component is applied to a battery, it is beneficial to further improve the reliability of heat exchange between the heat exchange component and the battery cell, so as to further improve the reliability of the battery.

[0008] In some embodiments, the materials of the first sub-sleeve and the second sub-sleeve respectively include plastics and are respectively formed by an injection molding process. The first sub-sleeve and the second sub-sleeve are connected by welding. In this way, it is beneficial to reduce the overall weight of the heat exchange component. In the scenario where the heat exchange component is applied to a battery, it is beneficial to increase the energy density of the battery. And it is beneficial to reduce the process difficulty of the first sub-sleeve and the second sub-sleeve, facilitating the simplification of the production processes of the first sub-sleeve and the second sub-sleeve. And setting the first sub-sleeve and the second sub-sleeve to be connected by welding is beneficial to increase the connection strength between the first sub-sleeve and the second sub-sleeve, further increasing the overall structural strength of the heat exchange component.

[0009] In some embodiments, at least a part of the second sub-sleeve is sleeved on the outer peripheral side of the first sub-sleeve. In this way, it is beneficial to increase the connection strength between the first sub-sleeve and the second sub-sleeve, and thus beneficial to increase the connection strength between the heat exchange member and the current collector, and beneficial to further increase the overall structural strength of the heat exchange component.

[0010] In some embodiments, the side of the second sub-sleeve facing the current collector has a card slot, and one end of the current collector facing the second sub-sleeve is received in the card slot. In this way, it is beneficial to increase the connection strength between the second sub-sleeve and the current collector, and thus beneficial to increase the overall structural strength of the heat exchange component.

[0011] In some embodiments, the heat exchange member has a plurality of flow channels arranged at intervals. The first sub-sleeve includes a sleeved portion and a reinforcing portion. The reinforcing portion and the sleeved portion enclose a plurality of through holes, and the plurality of through holes are arranged in one-to-one correspondence with the plurality of flow channels. In this way, it is beneficial to increase the structural strength of the first sub-sleeve, and thus increase the connection strength between the heat exchange member and the first sub-sleeve.

[0012] In some embodiments, the materials of the first sub-sleeve and the heat exchange member are different, and the first sub-sleeve and the heat exchange member are adhesively connected, and / or the materials of the second sub-sleeve and the current collector are different, and the second sub-sleeve and the current collector are adhesively connected. Such a setting is beneficial to increase the structural strength of the heat exchange component, and is convenient for the connection between the first sub-sleeve and the heat exchange member, and is convenient for realizing the sealed connection between the first sub-sleeve and the heat exchange, and / or is convenient for the connection between the second sub-sleeve and the current collector, and is convenient for realizing the sealed connection between the second sub-sleeve and the current collector.

[0013] In some embodiments, the flow channels include a first flow channel, a second flow channel, and a third flow channel that are spaced apart from each other. The manifold at one end of the heat exchange member includes a first diversion channel and a second diversion channel that are isolated from each other. The first diversion channel communicates with the fluid inlet / outlet and the first flow channel, and the second diversion channel communicates with the third flow channel and the adjacent second flow channel. The manifold at the other end of the heat exchange member includes a third diversion channel and a fourth diversion channel that are isolated from each other. The third diversion channel communicates with the third flow channel and the fluid inlet / outlet, and the fourth diversion channel communicates with the first flow channel and the adjacent second flow channel, so that the first flow channel, the second flow channel, and the third flow channel are connected in series. When the heat exchange assembly is applied to a battery, the flowing medium sequentially flows through the first flow channel, the second flow channel, and the third flow channel, facilitating sufficient heat exchange between the flowing medium and the battery cells, being conducive to improving the heat exchange efficiency between the flowing medium and the battery cells, and reducing the usage amount of the flowing medium.

[0014] In some embodiments, the heat exchange assembly further includes a plugging member. The flow channels include alternative flow channels. The plugging member is disposed at both ends of the heat exchange member along the first direction to plug the alternative flow channels. This is conducive to improving the connection strength between the manifold and the heat exchange member while also being conducive to improving the heat exchange efficiency between the heat exchange assembly and the battery cells and enhancing the utilization rate of the flowing medium. Moreover, the plugging of the alternative flow channels by the plugging member is conducive to improving the connection strength between the manifold and the heat exchange member, thereby enhancing the overall structural strength of the heat exchange assembly.

[0015] In some embodiments, the plugging member and the sleeve are integrally injection-molded. With this arrangement, it is conducive to improving the connection strength between the plugging member and the sleeve and simplifying the production process of the plugging member and the sleeve.

[0016] In a second aspect, an embodiment of the present application provides a box body including the heat exchange assembly as in the embodiment of the first aspect.

[0017] According to the box body provided by the embodiment of the present application, due to adopting the heat exchange assembly provided by any of the above embodiments, it has the same technical effects and will not be elaborated herein.

[0018] In a third aspect, an embodiment of the present application provides a battery including the box body as in the embodiment of the second aspect and battery cells. The battery cells are accommodated in the box body, and the heat exchange member is in contact with the battery cells and is used for heat exchange with the battery cells.

[0019] According to the battery provided by the embodiment of the present application, due to adopting the box body provided by the above embodiment, it has the same technical effects and will not be elaborated herein.

[0020] In a fourth aspect, an embodiment of the present application provides an electrical device including the battery as in the embodiment of the third aspect, and the battery is used to provide electrical energy.

[0021] The electrical device provided by the embodiment of the present application has the same technical effects because it adopts the battery provided by the embodiment of the present application, and will not be elaborated here. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to the drawings without creative efforts.

[0023] Figure 1 Structural schematic diagram of a vehicle provided by an embodiment of the present application;

[0024] Figure 2 Explosion schematic diagram of a battery provided by an embodiment of the present application;

[0025] Figure 3 Structural schematic diagram of a battery module in the battery provided by the embodiment of the present application;

[0026] Figure 4 Explosion schematic diagram of a battery cell in a battery provided by some embodiments of the present application;

[0027] Figure 5 Structural schematic diagram of a heat exchange component provided by the embodiment of the present application;

[0028] Figure 6 Front view of the heat exchange component provided by the embodiment of the present application;

[0029] Figure 7 For Figure 6 Cross-sectional structural schematic diagram along A-A;

[0030] Figure 8 For Figure 7 Partial enlarged view at B in

[0031] Figure 9 Structural schematic diagram of the second sub-sleeve in the heat exchange component provided by the embodiment of the present application;

[0032] Figure 10 Structural schematic diagram of the first sub-sleeve in the heat exchange component provided by the embodiment of the present application;

[0033] Figure 11 Partial structural schematic diagram of a heat exchange component provided by the embodiment of the present application;

[0034] Figure 12 Partial structural schematic diagram of another heat exchange component provided by the embodiment of the present application;

[0035] Figure 13 This is a partial structural schematic diagram of another heat exchange component provided by an embodiment of the present application.

[0036] In the accompanying drawings, the drawings are not drawn to actual scale.

[0037] Explanation of reference numerals in the drawings:

[0038] 1. Vehicle; 1a. Motor; 1b. Controller;

[0039] 10. Battery; 11. Box body; 111. First box body part; 112. Second box body part;

[0040] 20. Battery module;

[0041] 30. Battery cell; 31. Outer shell; 31a. Accommodating cavity; 311. Shell body; 311a. Opening; 312. End cover; 32. Electrode assembly;

[0042] 40. Heat exchange component; 41. Heat exchanger; 411. Flow channel; 411a. First flow channel; 411b. Second flow channel; 411c. Third flow channel; 411d. Alternative flow channel; 42. Manifold; 42a. Fluid inlet and outlet; 42b. First diversion channel; 42c. Second diversion channel; 42d. Third diversion channel; 42e. Fourth diversion channel; 43. Sleeve; 431. First sub - sleeve; 431a. Through - hole; 4311. Sleeve - setting part; 4312. Reinforcing part; 432. Second sub - sleeve; 432a. Card slot; 44. Sealing member;

[0043] X. First direction. Detailed implementation manners

[0044] The following further describes in detail the implementation manners of the present application in conjunction with the drawings and embodiments. The following detailed description of the embodiments and the drawings are used to exemplarily illustrate the principle of the present application, but cannot be used to limit the scope of the present application, that is, the present application is not limited to the described embodiments.

[0045] In the description of the present application, it should be noted that unless otherwise specified, the meaning of "a plurality" is two or more; the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range.

[0046] References to "embodiments" in this application mean that specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0047] In the description of this application, it should also be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] In this application, the battery cell can include a lithium-ion secondary battery cell, a lithium-ion primary battery cell, a lithium-sulfur battery cell, a sodium-lithium-ion battery cell, a sodium-ion battery cell, a magnesium-ion battery cell, etc., and the embodiments of this application do not limit this. The battery cell can be in the shape of a cylinder, a flat body, a cuboid, or other shapes, and the embodiments of this application do not limit this either. Generally, the battery cells are divided into three types according to the encapsulation method: cylindrical battery cells, square battery cells, and soft-pack battery cells, and the embodiments of this application do not limit this either.

[0049] The battery mentioned in the embodiments of this application refers to a single physical module including one or more battery cells to provide a higher voltage and capacity. For example, the battery mentioned in this application can include a battery module or a battery pack, etc. The battery generally includes a box for encapsulating one or more battery cells. The box can prevent liquids or other foreign objects from affecting the charging or discharging of the battery cells.

[0050] The battery cell includes an electrode assembly and an electrolyte. The electrode assembly includes a positive electrode plate, a negative electrode plate, and a separator. The battery cell mainly operates by the movement of metal ions between the positive electrode plate and the negative electrode plate. The positive electrode plate includes a positive current collector and a positive active material layer, and the positive active material layer is coated on the surface of the positive current collector; the positive current collector includes a positive current collecting portion and a positive convex portion protruding from the positive current collecting portion. The positive current collecting portion is coated with the positive active material layer, and at least part of the positive convex portion is not coated with the positive active material layer. The positive convex portion serves as a positive electrode tab. Taking a lithium-ion battery as an example, the material of the positive current collector can be aluminum, and the positive active material layer includes a positive active material, which can be lithium cobaltate, lithium iron phosphate, ternary lithium, lithium manganate, etc. The negative electrode plate includes a negative current collector and a negative active material layer, and the negative active material layer is coated on the surface of the negative current collector; the negative current collector includes a negative current collecting portion and a negative convex portion protruding from the negative current collecting portion. The negative current collecting portion is coated with the negative active material layer, and at least part of the negative convex portion is not coated with the negative active material layer. The negative convex portion serves as a negative electrode tab. The material of the negative current collector can be copper, and the negative active material layer includes a negative active material, which can be carbon or silicon, etc. In order to ensure that a large current can pass through without fusing, the number of positive electrode tabs is multiple and stacked together, and the number of negative electrode tabs is multiple and stacked together. The material of the separator can be PP (polypropylene) or PE (polyethylene), etc. In addition, the electrode assembly can be a wound structure or a stacked structure, and the embodiments of the present application are not limited thereto.

[0051] During the cyclic operation of the battery cell, heat is inevitably generated. Or, when the battery operates in an extremely cold environment, when the battery cell starts to work, the battery cell needs to be heated so that the battery cell can work at a reasonable operating temperature. The battery usually exchanges heat with the battery cell through a low-temperature or high-temperature flowing medium flowing through the heat exchange assembly to cool or heat the battery cell so that the battery cell can work within a suitable temperature range.

[0052] However, in the related art, the connection strength of the joints of the related structures in the heat exchange assembly is relatively low. During the use of the heat exchange assembly, problems such as cracking are likely to occur at the joints of the related structures, which is likely to cause the outflow of the flowing medium inside the heat exchange assembly, and the battery cell cannot be heated or cooled, resulting in too low or too high operating temperature of the battery cell. Thus, the reliable performance of the battery is seriously affected.

[0053] Based on this, the inventor has improved the structure of the heat exchange assembly. The technical solutions described in the embodiments of the present application are applicable to the heat exchange assembly, the box body including the heat exchange assembly, the battery using the box body, and the electrical device using the battery.

[0054] The heat exchange component provided by the embodiment of the present application sets a sleeve, and sets the sleeve to be sleeved with at least one of the heat exchange member and the current collector member, so as to connect the heat exchange member and the current collector member through the sleeve, and make the flow channel of the heat exchange member communicate with the fluid inlet and the fluid outlet of the current collector member. In this way, it is beneficial to increase the connection strength between the current collector member and the heat exchange member, reduce the risk of cracking at the connection between the two, thereby improving the overall structural strength of the heat exchange component, reducing the risk of leakage of the flowing medium during the operation of the heat exchange component, and thus being beneficial to improving the reliable performance of the battery.

[0055] The electrical device can be a vehicle, a mobile phone, a portable device, a laptop computer, a ship, a spacecraft, an electric toy, an electric tool, etc. The vehicle can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle or an extended-range electric vehicle, etc.; the spacecraft includes an airplane, a rocket, a space shuttle, a spaceship, etc.; the electric toy includes a fixed or mobile electric toy, for example, a game console, an electric vehicle toy, an electric ship toy, an electric airplane toy, etc.; the electric tool includes a metal cutting electric tool, a grinding electric tool, an assembly electric tool and a railway electric tool, for example, an electric drill, an electric grinding wheel, an electric wrench, an electric screwdriver, a hammer drill, an impact electric drill, a concrete vibrator, a power plane, etc. The embodiment of the present application does not make special restrictions on the above electrical devices.

[0056] For the convenience of description, the following embodiments take the electrical device as a vehicle as an example for description.

[0057] As Figure 1 shown, a battery 10 is arranged inside the vehicle 1. The battery 10 can be arranged at the bottom, the head or the tail of the vehicle 1. The battery 10 can be used for power supply of the vehicle 1. For example, the battery 10 can be used as the operating power source of the vehicle 1.

[0058] The vehicle 1 may further include a controller 1b and a motor 1a. The controller 1b is used to control the battery 10 to supply power to the motor 1a, for example, for the working power requirements during the start, navigation and driving of the vehicle 1.

[0059] In some embodiments of the present application, the battery 10 can not only be used as the operating power source of the vehicle 1, but also be used as the driving power source of the vehicle 1, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1.

[0060] Refer to Figure 2 shown, the battery 10 includes battery cells ( Figure 2 not shown). The battery 10 may further include a box body 11 for accommodating the battery cells.

[0061] The housing 11 is used to accommodate battery cells, and the housing 11 can be of various structural forms. In some embodiments, the housing 11 may include a first housing portion 111 and a second housing portion 112. The first housing portion 111 and the second housing portion 112 are covered with each other. The first housing portion 111 and the second housing portion 112 jointly define an accommodation space for accommodating battery cells. The second housing portion 112 may be a hollow structure with one end open, and the first housing portion 111 is a plate-like structure. The first housing portion 111 covers the open side of the second housing portion 112 to form the housing 11 with an accommodation space; the first housing portion 111 and the second housing portion 112 may also both be hollow structures with one side open. The open side of the first housing portion 111 covers the open side of the second housing portion 112 to form a housing with an accommodation space. Of course, the first housing portion 111 and the second housing portion 112 can be of various shapes, such as a cylinder, a cuboid, etc.

[0062] To improve the sealing performance after the connection between the first housing portion 111 and the second housing portion 112, a sealing member, such as sealant, sealing ring, etc., can also be provided between the first housing portion 111 and the second housing portion 112.

[0063] Assuming that the first housing portion 111 covers the second housing portion 112, the first housing portion 111 can also be called the upper cover, and the second housing portion 112 can also be called the lower housing.

[0064] In the battery 10, there can be one or multiple battery cells. If there are multiple battery cells, the multiple battery cells can be connected in series, parallel, or in a hybrid connection. A hybrid connection means that there are both series and parallel connections among the multiple battery cells. The multiple battery cells can be directly connected in series, parallel, or in a hybrid connection together, and then the whole formed by the multiple battery cells is accommodated in the housing, or multiple battery cells can first be connected in series, parallel, or in a hybrid connection to form battery modules 20. Multiple battery modules 20 are then connected in series, parallel, or in a hybrid connection to form a whole and are accommodated in the housing 11.

[0065] In some embodiments, as Figure 3 shown, Figure 3 for Figure 2 the structural schematic diagram of the battery module 20 shown. In the battery module 20, there are multiple battery cells 30. Multiple battery cells 30 are first connected in series, parallel, or in a hybrid connection to form the battery module 20. Multiple battery modules 20 are then connected in series, parallel, or in a hybrid connection to form a whole and are accommodated in the housing 11.

[0066] In some embodiments, multiple battery cells 30 in the battery module 20 can be electrically connected through a busbar component to achieve parallel, series, or hybrid connection of the multiple battery cells 30 in the battery module 20.

[0067] Please refer to Figure 4 ,Figure 4 As shown in Figure 3 FIG. 0, an explosion schematic diagram of the battery cell 30. The battery cell 30 provided by the embodiment of the present application includes an electrode assembly 32 and a housing 31. The housing 31 has a receiving cavity, and the electrode assembly 32 is received in the receiving cavity.

[0068] In some embodiments, the housing 31 may include a housing body 311 and an end cap 312. The housing body 311 is a hollow structure with an opening on one side. The end cap 312 is covered at the opening 311a of the housing body 311 and forms a sealed connection to form a sealed space for receiving the electrode assembly 32 and the electrolyte.

[0069] When assembling the battery cell 30, the electrode assembly 32 can be first placed into the housing body 311, then the end cap 312 is covered on the opening of the housing body 311, and then the electrolyte is injected into the housing body 311 through the electrolyte injection port on the end cap 312.

[0070] In some embodiments, the housing 31 can also be used to contain the electrolyte, such as the electrolyte solution. The housing 31 can be in various structural forms.

[0071] The housing body 311 can be in various shapes, such as a cylinder, a cuboid, etc. The shape of the housing body 311 can be determined according to the specific shape of the electrode assembly 32. For example, if the electrode assembly 32 is a cylinder structure, the housing body 311 can be selected as a cylinder structure. If the electrode assembly 32 is a cuboid structure, the housing body 311 can be selected as a cuboid structure. In Figure 4 , exemplarily, both the housing body 311 and the electrode assembly 32 are cuboid structures.

[0072] The material of the housing body 311 can be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, etc. The embodiment of the present application does not make special restrictions on this.

[0073] The number of electrode assemblies 32 received in the housing body 311 can be one or more. In Figure 4 , the number of electrode assemblies 32 received in the housing body 311 is two.

[0074] As Figures 5 to 8 shown, according to the embodiment of the present application, the heat exchange component 40 includes a heat exchange member 41, a current collector 42, and a sleeve 43. The heat exchange member 41 has a flow channel 411 extending along the first direction X. The current collector 42 is disposed at both ends of the heat exchange member 41 along the first direction X. The current collector 42 has a fluid inlet / outlet 42a, and the fluid inlet / outlet 42a is communicated with the flow channel 411. The sleeve 43 is sleeved with at least one of the heat exchange member 41 and the current collector 42 and connects the heat exchange member 41 and the current collector 42.

[0075] The heat exchange member 41 has a flow channel 411 extending in the first direction X. Optionally, one, two, or more flow channels 411 extending in the first direction X can be provided on the heat exchange member 41 as needed. Each flow channel 411 can be isolated from each other, and by reasonably setting the structural form of the flow collector 42, the multiple flow channels 411 of the heat exchange member 41 can be connected in series or in parallel with each other. Of course, it is also possible to connect some of the multiple flow channels 411 in the heat exchange member 41 in series and the other part in parallel, which can be specifically set according to actual needs.

[0076] The flow collector 42 has fluid inlets and outlets 42a. The flow collector 42 can be provided at both ends of the heat exchange member 41 along the first direction X. Then, the heat exchange assembly 40 can include two flow collectors 42, which are respectively provided at both ends of the heat exchange member 41 along the first direction X, and the two flow collectors 42 at both ends of the heat exchange member 41 each have fluid inlets and outlets 42a. The flow channel 411 communicates with the fluid inlets and outlets 42a of the flow collector 42 along the first direction X. Then, in the case where the heat exchange member 41 has one flow channel 411, both ends of the one flow channel 411 along the first direction X are respectively connected to the fluid inlets and outlets 42a. In the case where the heat exchange member 41 has multiple flow channels 411, according to the series or parallel connection of the multiple flow channels 411, it can be set that both ends of one flow channel 411 are directly connected to two fluid inlets and outlets 42a respectively, or two flow channels 411 are respectively connected to two fluid inlets and outlets 42a.

[0077] It can be understood that any one of the fluid inlets and outlets 42a of the flow collector 42 at both ends of the heat exchange member 41 can be set to allow the fluid medium to flow in according to actual needs, and the other is set to allow the fluid medium to flow out.

[0078] The sleeve 43 is sleeved with at least one of the heat exchange member 41 and the flow collector 42. Optionally, the sleeve 43 can be sleeved only with the heat exchange member 41, or the sleeve 43 is sleeved only with the flow collector 42, or the sleeve 43 can be set to be sleeved with both the heat exchange member 41 and the flow collector 42.

[0079] In the embodiment where the sleeve 43 is sleeved with both the heat exchange member 41 and the flow collector 42, the parts of the sleeve 43 sleeved with the flow collector 42 and the heat exchange member 41 respectively can be integrally formed, or the parts of the sleeve 43 sleeved with the flow collector 42 and the heat exchange member 41 respectively are set to be separately provided and connected to each other.

[0080] The sleeve 43 and the manifold 42 are sleeved with each other. The sleeve 43 can be sleeved on the inner wall of the manifold 42, or the sleeve 43 can be sleeved on the outer peripheral wall of the manifold 42. Similarly, the sleeve 43 and the heat exchanger 41 are sleeved with each other. The sleeve 43 can be sleeved on the outer peripheral wall of the heat exchanger 42, or the heat exchanger 42 can be sleeved on the outer peripheral wall of the sleeve 43.

[0081] The sleeve 43 connects the heat exchanger 41 and the manifold 42. Then, the manifold 42 and the heat exchanger 41 can be connected to each other through the sleeve 43 to realize the communication between the flow channel 411 and the fluid inlet / outlet 42a.

[0082] The mutual sleeving of the sleeve 43 and the manifold 42 can increase the structural strength of the mutually sleeved part 4311 of the manifold 42 and the sleeve 43. Similarly, the mutual sleeving of the sleeve 43 and the heat exchanger 41 can increase the structural strength of the mutually sleeved part 4311 of the heat exchanger 41 and the sleeve 43. Therefore, the mutual sleeving of the sleeve 43 and any one of the manifold 42 and the heat exchanger 41 is beneficial to increasing the connection strength between the manifold 42 and the heat exchanger 41.

[0083] When the heat exchange assembly 40 is applied to the battery 10, the low-temperature or high-temperature flowing medium flowing through the heat exchanger 41 can exchange heat with the battery cells 30 of the battery 10 to cool or heat the battery cells 30.

[0084] Therefore, for the heat exchange assembly 40 provided in the embodiment of the present application, by sleeving the sleeve 43 with at least one of the manifold 42 and the heat exchanger 41, it is beneficial to improve the connection strength between the manifold 42 and the heat exchanger 41 and beneficial to improve the overall structural strength of the heat exchange assembly 40. In this way, it is beneficial to reduce the risk of leakage of the flowing medium caused by the connection failure between the manifold 42 and the heat exchanger 41 and improve the reliability of the heat exchange assembly 40. When the heat exchange assembly 40 is applied to the battery 10, it is beneficial to improve the reliability of heat exchange between the heat exchange assembly 40 and the battery cells 30, and further beneficial to improve the reliability of the battery 10.

[0085] As Figure 7 and Figure 8 shown, in some embodiments, the sleeve 43 includes a first sub-sleeve 431 and a second sub-sleeve 432. The first sub-sleeve 431 and the end of the heat exchanger 41 along the first direction X are sleeved with each other. The second sub-sleeve 432 and the end of the manifold 42 facing the heat exchanger 41 are sleeved with each other. The first sub-sleeve 431 and the second sub-sleeve 432 are connected to each other.

[0086] The sleeve 43 includes a first sub-sleeve 431 and a second sub-sleeve 432. The first sub-sleeve 431 and the second sub-sleeve 432 can be formed by injection molding, casting, machining or other methods.

[0087] The first sub-sleeve 431 and the second sub-sleeve 432 are connected to each other. Optionally, the first sub-sleeve 431 and the second sub-sleeve 432 can be integrally formed, or after the first sub-sleeve 431 and the second sub-sleeve 432 are respectively formed, they are connected to each other.

[0088] The first sub-sleeve 431 and the end of the heat exchange member 41 along the first direction X are sleeved with each other. Optionally, the first sub-sleeve 431 can be sleeved on the outer peripheral side of the heat exchange member 41, or the end of the heat exchange member 41 along the first direction X can be sleeved on the outer peripheral side of the first sub-sleeve 431. Similarly, the second sub-sleeve 432 can be sleeved on the outer peripheral side of the end of the current collector 42 facing the heat exchange member 41, or the end of the current collector 42 facing the heat exchange member 41 can be sleeved on the outer peripheral side of the second sub-sleeve 432.

[0089] The connection between the first sub-sleeve 431 and the heat exchange member 41 can be a direct connection, or a sealed connection by means of adhesive connection or connection through a sealant, etc. Similarly, the connection between the second sub-sleeve 432 and the current collector 42 can be a direct connection, or a sealed connection by means of a sealant or adhesive connection, etc.

[0090] Setting the first sub-sleeve 431 and the end of the heat exchange member 41 along the first direction X to be sleeved with each other, the second sub-sleeve 432 and the end of the current collector 42 facing the heat exchange member 41 to be sleeved with each other, and setting the first sub-sleeve 431 and the second sub-sleeve 432 to be connected to each other is beneficial to further improve the connection strength between the current collector 42 and the heat exchange member 41, and further improve the overall structural strength of the heat exchange assembly 40. In the scenario where the heat exchange assembly 40 is applied to the battery 10, it is beneficial to further improve the reliability of heat exchange between the heat exchange assembly 40 and the battery cell 30, so as to further improve the reliable performance of the battery 10.

[0091] In some embodiments, the materials of the first sub-sleeve 431 and the second sub-sleeve 432 respectively include plastics and are respectively formed by an injection molding process, and the first sub-sleeve 431 and the second sub-sleeve 432 are connected by welding.

[0092] The plastic has a relatively light mass. Therefore, setting the materials of the first sub-sleeve 431 and the second sub-sleeve 432 to both include plastic is beneficial to reducing the overall weight of the heat exchange component 40. In the scenario where the heat exchange component 40 is applied to the battery 10, it is beneficial to improve the energy density of the battery 10. And setting the first sub-sleeve 431 and the second sub-sleeve 432 to be formed by an injection molding process respectively is beneficial to reducing the processing difficulty of the first sub-sleeve 431 and the second sub-sleeve 432, facilitating the simplification of the production process of the first sub-sleeve 431 and the second sub-sleeve 432, and reducing the production cost of the heat exchange component 40. And setting the first sub-sleeve 431 and the second sub-sleeve 432 to be connected by welding is beneficial to improving the connection strength between the first sub-sleeve 431 and the second sub-sleeve 432, and further improving the overall structural strength of the heat exchange component 40.

[0093] As Figure 7 and Figure 8 shown, in some embodiments, at least a part of the second sub-sleeve 432 is sleeved on the outer peripheral side of the first sub-sleeve 431.

[0094] In this way, it is beneficial to improve the connection strength between the first sub-sleeve 431 and the second sub-sleeve 432, and thus beneficial to improving the connection strength between the heat exchange member 41 and the current collector 42, and beneficial to further improving the overall structural strength of the heat exchange component 40.

[0095] As Figure 5 , Figure 7 , Figure 8 and Figure 9 shown, in some embodiments, the side of the second sub-sleeve 432 facing the current collector 42 has a card slot 432a, and one end of the current collector 42 facing the second sub-sleeve 432 is received in the card slot 432a.

[0096] Optionally, the card slot 432a of the second sub-sleeve 432 can be annular or arc-shaped, etc., that is, the card slot 432a can be arranged around the circumference of the current collector 42, or arranged at intervals on the circumferential side of the current collector 42.

[0097] Setting one end of the current collector 42 facing the second sub-sleeve 432 to be received in the card slot 432a, then the current collector 42 can be snapped into the card slot 432a, or the current collector 42 has an interference fit with the card slot 432a.

[0098] By setting the side of the second sub-sleeve 432 facing the current collector 42 to have a card slot 432a and setting one end of the current collector 42 facing the second sub-sleeve 432 to be received in the card slot 432a, it is beneficial to improve the connection strength between the second sub-sleeve 432 and the current collector 42, and thus beneficial to improving the overall structural strength of the heat exchange component 40.

[0099] It can be understood that the materials of the first sub-sleeve 431 and the heat exchange member 41 may be the same or different. In the embodiment where the materials of the first sub-sleeve 431 and the heat exchange member 41 are the same, the two can be connected by welding, bonding, etc. In the embodiment where the materials of the first sub-sleeve 431 and the heat exchange member 41 are different, the first sub-sleeve 431 and the heat exchange member 41 can be connected by processes such as bonding. Similarly, the materials of the second sub-sleeve 432 and the current collector 42 may be the same or different.

[0100] Optionally, the first sub-sleeve 431 may be annular, or the first sub-sleeve 431 may be provided to include a ring structure and structures such as reinforcing ribs formed within the ring structure.

[0101] As Figure 5 and Figure 10 shown, in some embodiments, the heat exchange member 41 has a plurality of flow channels 411 arranged at intervals. The first sub-sleeve 431 includes a sleeving portion 4311 and a reinforcing portion 4312. The reinforcing portion 4312 and the sleeving portion 4311 enclose a plurality of through holes 431a, and the plurality of through holes 431a are arranged in one-to-one correspondence with the plurality of flow channels 411.

[0102] In this way, the plurality of through holes 431a will not block the flow channels 411 of the heat exchange member 41, and the first sub-sleeve 431 includes a sleeving portion and a reinforcing portion 4312, which is beneficial to improving the structural strength of the first sub-sleeve 431, and further improving the connection strength between the heat exchange member 41 and the first sub-sleeve 431.

[0103] In some embodiments, the materials of the first sub-sleeve 431 and the heat exchange member 41 are different, and the first sub-sleeve 431 and the heat exchange member 41 are adhesively connected.

[0104] If the materials of the first sub-sleeve 431 and the heat exchange member 41 are different, the specific materials of the first sub-sleeve 431 and the heat exchange member 41 can be set as needed, so as to improve the structural strength of the first sub-sleeve 431 and the heat exchange member 41 while facilitating their separate manufacturing and forming. Exemplarily, the material of the first sub-sleeve 431 can be set to include plastic, while the material of the heat exchange member 41 includes aluminum. In this way, it is beneficial to improve the structural strength of the heat exchange member 41, and the first sub-sleeve 431 can be produced by an injection molding process, which is convenient for simplifying the production process of the first sub-sleeve 431.

[0105] Since the materials of the first sub-sleeve 431 and the heat exchange member 41 are different, and the first sub-sleeve 431 and the heat exchange member 41 are adhesively connected, while improving the connection reliability between the first sub-sleeve 431 and the heat exchange member 41, when the adhesive is arranged around the circumference of the first sub-sleeve 431 and the heat exchange member 41, the adhesive also has a certain sealing effect, which is convenient for realizing the sealed connection between the first sub-sleeve 431 and the heat exchange member 41.

[0106] In some embodiments, the second sub-sleeve 432 is made of a material different from that of the current collector 42, and the second sub-sleeve 432 is adhesively connected to the current collector 42.

[0107] If the materials of the second sub-sleeve 432 and the current collector 42 are different, the specific materials of the second sub-sleeve 432 and the current collector 42 can be set as needed to improve the structural strength of the second sub-sleeve 432 and the heat exchanger 41 while facilitating their separate manufacturing and forming. Exemplarily, the material of the second sub-sleeve 432 can be set to include plastic, while the material of the current collector 42 includes aluminum. In this way, it is beneficial to improve the structural strength of the current collector 42, and the second sub-sleeve 432 can be produced by an injection molding process, which facilitates simplifying the production process of the second sub-sleeve 432.

[0108] Since the materials of the second sub-sleeve 432 and the current collector 42 are different, setting the second sub-sleeve 432 to be adhesively connected to the current collector 42 can improve the connection reliability between the second sub-sleeve 432 and the current collector 42. When the adhesive is provided around the circumference of the second sub-sleeve 432 and the current collector 42, the adhesive also has a certain sealing effect, which facilitates realizing the sealed connection between the second sub-sleeve 432 and the current collector 42.

[0109] As Figure 7 shown, in some embodiments, the flow channel 411 includes a first flow channel 411a, a second flow channel 411b, and a third flow channel 411c that are spaced apart from each other. The current collector 42 at one end of the heat exchanger 41 includes a first diversion channel 42b and a second diversion channel 42c that are isolated from each other. The first diversion channel 42b communicates with the fluid inlet / outlet 42a and the first flow channel 411a, and the second diversion channel 42c communicates with the adjacent second flow channel 411b and third flow channel 411c; the current collector 42 at the other end of the heat exchanger 41 includes a third diversion channel 42d and a fourth diversion channel 42e that are isolated from each other. The third diversion channel 42d communicates with the third flow channel 411c and the fluid inlet / outlet 42a, and the fourth diversion channel 42e communicates with the adjacent first flow channel 411a and second flow channel 411b, so that the first flow channel 411a, the second flow channel 411b, and the third flow channel 411c are connected in series.

[0110] The flow channel 411 includes a first flow channel 411a, a second flow channel 411b, and a third flow channel 411c, and the first flow channel 411a, the second flow channel 411b, and the third flow channel 411c are connected in series with each other. Optionally, the heat exchanger 41 can have one second flow channel 411b or multiple second flow channels 411b. If the first flow channel 411a, the second flow channel 411b, and the third flow channel 411c of the flow channel 411 are connected in series with each other, the flow channel 411 can also have other flow channels 411 that are not connected in series with the first flow channel 411a, the second flow channel 411b, or the third flow channel 411c.

[0111] It can be understood that when the flow channel 411 has a plurality of second flow channels 411b, in order to achieve the series connection of the plurality of second flow channels 411b, an additional second diversion channel 42c and a fourth diversion channel 42e need to be provided to achieve the series connection and communication of the plurality of second flow channels 411b.

[0112] With such a setting, by providing that the manifold 42 has a first diversion channel 42b, a second diversion channel 42c, a third diversion channel 42d, and a fourth diversion channel 42e respectively, the first flow channel 411a, the second flow channel 411b, and the third flow channel 411c are connected in series. When the heat exchange assembly 40 is applied to the battery 10, the flowing medium sequentially flows through the first flow channel 411a, the second flow channel 411b, and the third flow channel 411c, which facilitates the sufficient heat exchange between the flowing medium and the battery cell 30, is conducive to improving the heat exchange efficiency between the flowing medium and the battery cell 30, and reducing the usage amount of the flowing medium.

[0113] As Figure 7 、 Figure 11 、 Figure 12 and Figure 13 shown, in some embodiments, the heat exchange assembly 40 further includes a plugging member 44. The flow channel 411 includes an alternative flow channel 411d. The plugging member 44 is provided at both ends of the heat exchange member 41 along the first direction X to plug the alternative flow channel 411d.

[0114] After the heat exchange member 41 is manufactured, according to the relative position between the heat exchange member 41 and the battery cell 30, a part of the plurality of flow channels 411 can be selectively used for the flowing medium to flow through, so as to maximize the heat exchange efficiency between the battery cell 30 and the heat exchange member 41. For those alternative flow channels 411d, because there is no corresponding flow channel 411 or the flow channels 411 with relatively dense distribution, the alternative flow channels 411d can be plugged by setting the plugging member 44 to control that the flowing medium does not flow through the alternative flow channels 411d, which is conducive to improving the connection strength between the manifold 42 and the heat exchange member 41 while also being conducive to improving the heat exchange efficiency between the heat exchange assembly 40 and the battery cell 30 and improving the utilization rate of the flowing medium. And the plugging of the alternative flow channels 411d by the plugging member 44 is conducive to improving the connection strength between the manifold 42 and the heat exchange member 41, and further improving the overall structural strength of the heat exchange assembly 40.

[0115] As Figure 12 and Figure 13 shown, in some embodiments, the plugging member 44 and the sleeve 43 are integrally injection molded.

[0116] In this way, the materials of both the plugging member 44 and the sleeve 43 include plastics and are integrally injection molded using corresponding molds.

[0117] In an embodiment where the sleeve 43 includes a first sub-sleeve 431 and a second sub-sleeve 432, the plug 44 may be integrally formed with the first sub-sleeve 431, as Figure 13 shown; alternatively, the plug 44 may also be integrally formed with the second sub-sleeve 432, as Figure 12 shown.

[0118] Setting the plug 44 to be integrally injection-molded with the sleeve 43 is beneficial to improving the connection strength between the plug 44 and the sleeve 43 and simplifies the production processes of the plug 44 and the sleeve 43.

[0119] The box body 11 provided by the embodiment of the present application includes the heat exchange assembly 40 provided by any of the above embodiments.

[0120] The box body 11 provided by the embodiment of the present application has the same technical effects because it includes the heat exchange assembly 40 provided by any of the above embodiments, and thus will not be elaborated here.

[0121] The battery 10 provided by the embodiment of the present application includes the box body 11 and the battery cells 30 provided by the above embodiments. The battery cells 30 are accommodated in the box body 11, and the heat exchange member 41 is in contact with the battery cells 30 and is used for heat exchange with the battery cells 30.

[0122] The battery 10 provided by the embodiment of the present application has the same technical effects because it adopts the box body 11 provided by the embodiment of the present application, and thus will not be elaborated here.

[0123] The electrical device provided by the embodiment of the present application includes the battery 10 provided by the above embodiments, and the battery 10 is used to provide electrical energy.

[0124] The electrical device provided by the embodiment of the present application has the same technical effects because it adopts the battery 10 provided by the above embodiments, and thus will not be elaborated here.

[0125] Such as Figures 5 to 13As shown, in some embodiments, the heat exchange component 40 provided by the embodiments of the present application includes a heat exchange member 41, a manifold member 42, a sleeve 43, and a plugging member 44. The heat exchange member 41 has a flow channel 411 extending along the first direction X. The manifold member 42 is provided at both ends of the heat exchange member 41 along the first direction X. The manifold member 42 has a fluid inlet / outlet 42a, and the fluid inlet / outlet 42a is communicated with the flow channel 411. The sleeve 43 includes a first sub-sleeve 431 and a second sub-sleeve 432. The first sub-sleeve 431 and the end of the heat exchange member 41 along the first direction X are sleeved with each other. The second sub-sleeve 432 and the end of the manifold member 42 facing the heat exchange member 41 are sleeved with each other. The materials of the first sub-sleeve 431 and the second sub-sleeve 432 respectively include plastics and are respectively formed by an injection molding process. The first sub-sleeve 431 and the second sub-sleeve 432 are welded and connected. The side of the second sub-sleeve 432 facing the manifold member 42 has a card slot 432a, and the end of the manifold member 42 facing the second sub-sleeve 432 is received in the card slot 432a. The heat exchange member 41 has a plurality of flow channels 411 arranged at intervals. The heat exchange member 41 includes a pipe body and a separator provided in the cover body. Adjacent flow channels 411 are separated by the separator. The first sub-sleeve 431 has through holes 431a corresponding to the plurality of flow channels 411 one by one. The material of the heat exchange member 41 includes aluminum, and the material of the manifold member 42 includes aluminum. The first sub-sleeve 431 and the heat exchange member 41 are adhesively connected, and the second sub-sleeve 432 and the manifold member 42 are adhesively connected. The flow channel 411 includes a first flow channel 411a, a second flow channel 411b, a third flow channel 411c, and an alternative flow channel 411d that are spaced from each other. The manifold member 42 at one end of the heat exchange member 41 includes a first diversion channel 42b and a second diversion channel 42c that are isolated from each other. The first diversion channel 42b communicates the fluid inlet / outlet 42a and the first flow channel 411a. The second diversion channel 42c communicates the third flow channel 411c and the adjacent second flow channel 411b. The manifold member 42 at the other end of the heat exchange member 41 includes a third diversion channel 42d and a fourth diversion channel 42e that are isolated from each other. The third diversion channel 42d communicates the third flow channel 411c and the fluid inlet / outlet 42a. The fourth diversion channel 42e communicates the first flow channel 411a and the adjacent second flow channel 411b, so that the first flow channel 411a, the second flow channel 411b, and the third flow channel 411c are connected in series. The plugging member 44 is provided at both ends of the heat exchange member 41 along the first direction X to plug the alternative flow channel 411d.

[0126] The heat exchange component 40 provided by the embodiment of the present application is configured such that the sleeve 43 is sleeved with at least one of the manifold 42 and the heat exchange member 41, which is conducive to improving the connection strength between the manifold 42 and the heat exchange member 41 and the overall structural strength of the heat exchange component 40. Thus, it is conducive to reducing the risk of leakage of the flowing medium caused by the connection failure between the manifold 42 and the heat exchange member 41, improving the reliability of the heat exchange component 40. When the heat exchange component 40 is applied to the battery 10, it is conducive to improving the reliability of heat exchange between the heat exchange component 40 and the battery cell 30, and further conducive to improving the reliability of the battery 10.

[0127] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other.

[0128] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features, but these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A heat exchange component, characterized in that, Comprising: A heat exchange member having a flow channel extending in a first direction; A manifold member provided at two ends of the heat exchange member along the first direction, the manifold member having fluid inlets and outlets, and the fluid inlets and outlets communicating with the flow channel; A sleeve sleeved with at least one of the heat exchange member and the manifold member and connecting the heat exchange member and the manifold member.

2. The heat exchange component according to claim 1, wherein The sleeve includes a first sub-sleeve and a second sub-sleeve. The first sub-sleeve is sleeved with an end portion of the heat exchange member along the first direction, and the second sub-sleeve is sleeved with an end of the manifold member facing the heat exchange member. The first sub-sleeve and the second sub-sleeve are connected to each other.

3. The heat exchange component according to claim 2, wherein The materials of the first sub-sleeve and the second sub-sleeve respectively include plastics and are respectively formed by an injection molding process. The first sub-sleeve and the second sub-sleeve are connected by welding.

4. The heat exchange component according to claim 2 or 3, characterized in that, At least a part of the second sub-sleeve is sleeved on the outer peripheral side of the first sub-sleeve.

5. The heat exchange component according to any one of claims 2 to 4, characterized in that The second sub-sleeve has a clamping groove on a side facing the manifold member, and an end of the manifold member facing the second sub-sleeve is received in the clamping groove.

6. The heat exchange component according to any one of claims 2 to 5, characterized in that, The heat exchange member has a plurality of spaced-apart flow channels. The first sub-sleeve includes a sleeved portion and a strengthening portion. The strengthening portion and the sleeved portion enclose a plurality of through holes, and the plurality of through holes correspond to the plurality of flow channels one by one.

7. The heat exchange component according to any one of claims 2 to 6, characterized in that The materials of the first sub-sleeve and the heat exchange member are different, and the first sub-sleeve is adhesively connected to the heat exchange member, and / or the materials of the second sub-sleeve and the manifold member are different, and the second sub-sleeve is adhesively connected to the manifold member.

8. The heat exchange component according to any one of claims 1 to 7, characterized in that, The flow channel includes a first flow channel, a second flow channel, and a third flow channel that are spaced apart from each other. The manifold member at one end of the heat exchange member includes a first diversion channel and a second diversion channel that are isolated from each other. The first diversion channel communicates the fluid inlet and outlet and the first flow channel, and the second diversion channel communicates the third flow channel and the adjacent second flow channel; The manifold member at the other end of the heat exchange member includes a third diversion channel and a fourth diversion channel that are isolated from each other. The third diversion channel communicates the third flow channel and the fluid inlet and outlet, and the fourth diversion channel communicates the first flow channel and the adjacent second flow channel, so that the first flow channel, the second flow channel, and the third flow channel are connected in series.

9. The heat exchange component according to any one of claims 1 to 8, characterized in that, The heat exchange assembly further includes a plugging member. The flow channel includes an alternative flow channel. The plugging member is provided at two ends of the heat exchange member along the first direction to plug the alternative flow channel.

10. The heat exchange component according to claim 9, wherein, The plugging member is integrally injection-molded with the sleeve.

11. A box body, characterized in that, Including the heat exchange assembly according to any one of claims 1 to 10.

12. A battery, characterized in that, Comprising: The box according to claim 11; A battery cell accommodated in the box, the heat exchange member being in contact with the battery cell and used for heat exchange with the battery cell.

13. An electrical device, characterized in that, Including the battery according to claim 12, the battery being used to provide electrical energy.

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