Heat exchange assembly, box body, battery and electrical device

Abstract

The present application provides a heat exchange assembly (13), a box body (10), a battery (100) and an electrical device. A heat exchange flow channel (133) is formed in the heat exchange assembly (13). The heat exchange assembly (13) comprises a first plate body (131) and a second plate body (132), the first plate body (131) comprising a first connecting layer member (1311), and the second plate body (132) comprising a reinforcing layer member (1321) and a second connecting layer member (1322). The reinforcing layer member (1321) and the second connecting layer member (1322) are stacked and connected to each other. The second connecting layer member (1322) and the first connecting layer member (1311) are stacked and hermetically connected to each other, so as to close the heat exchange flow channel (133).

Description

Heat exchange components, boxes, batteries and electrical equipment

[0001] Cross-references

[0002] This application refers to Chinese patent application No. 202410256856.9, filed on March 6, 2024, entitled “Heat exchange component, box, battery and electrical equipment”, which is incorporated into this application in its entirety by reference. Technical Field

[0003] The present application relates to the field of battery technology, and in particular to a heat exchange component, a box, a battery and an electrical device. Background Art

[0004] Energy conservation and emission reduction are key to the sustainable development of the automotive industry. Electric vehicles, due to their energy-saving and environmentally friendly advantages, have become an important part of the sustainable development of the automotive industry. For electric vehicles, battery technology is a key factor in their development.

[0005] The heat exchange assembly in a battery is used to circulate a heat exchange medium to regulate the battery's temperature. However, due to its low structural strength, the heat exchange assembly is easily deformed by external forces.

[0006] Summary of the Invention

[0007] One of the purposes of the embodiments of the present application is to provide a heat exchange component, a box, a battery and an electrical device, aiming to solve the technical problem of low structural strength of the heat exchange component in the related art.

[0008] To solve the above technical problems, the technical solution adopted in the embodiment of the present application is: providing a heat exchange component, wherein a heat exchange flow channel is formed inside the heat exchange component, and the heat exchange component includes:

[0009] A first plate body, comprising a first connecting layer;

[0010] The second plate body includes a reinforcing layer and a second connecting layer. The reinforcing layer and the second connecting layer are stacked and connected. The second connecting layer and the first connecting layer are stacked and sealed to close the heat exchange channel.

[0011] The beneficial effect of the heat exchange component provided by the embodiment of the present application is that: a reinforcement layer is provided on the second plate body of the heat exchange component provided by the embodiment of the present application, and the reinforcement layer is stacked and connected with the second connecting layer. When the second connecting layer is connected to the first connecting layer, the reinforcement layer can provide additional support for the entire heat exchange component to resist external forces, thereby effectively improving the structural strength of the heat exchange component and effectively reducing the risk of deformation of the heat exchange component.

[0012] In some embodiments of the present application, the first connecting layer and the second connecting layer are welded.

[0013] By adopting the above technical solution, the connection process of the first plate body and the second plate body is effectively simplified, thereby effectively improving the production efficiency of the heat exchange component.

[0014] In some embodiments of the present application, the first connecting layer comprises a first layer and a second layer connected in a stacked manner, the second layer is welded to the second connecting layer, and the melting point of the second layer is lower than that of the first layer.

[0015] By adopting the above technical solution, the first connecting layer can better adapt to the welding temperature, thereby effectively improving the welding effect between the first plate body and the second plate body.

[0016] In some embodiments of the present application, the first layer is a 3-series aluminum layer or a 1-series aluminum layer, and the second layer is a 4-series aluminum layer.

[0017] By adopting the above technical solution, the first connecting layer can better adapt to the welding temperature, thereby further improving the welding effect between the first plate body and the second plate body.

[0018] In some embodiments of the present application, the thickness of the first layer is 0.1 mm-0.85 mm.

[0019] By adopting the above technical solution, the risk of the first connecting layer being welded through is effectively reduced.

[0020] In some embodiments of the present application, the thickness of the second layer is 0.05 mm-0.1 mm.

[0021] By adopting the above technical solution, the penetration requirement for welding the first plate body and the second plate body can be met, thereby effectively improving the welding effect between the first plate body and the second plate body.

[0022] In some embodiments of the present application, the second connecting layer includes a third layer and a fourth layer connected in a stacked manner, the fourth layer is welded to the first connecting layer, and the melting point of the fourth layer is lower than that of the third layer.

[0023] By adopting the above technical solution, the second connecting layer can better adapt to the welding temperature, thereby effectively improving the welding effect between the first plate body and the second plate body.

[0024] In some embodiments of the present application, the third layer is a 3-series aluminum layer or a 1-series aluminum layer, and the fourth layer is a 4-series aluminum layer.

[0025] By adopting the above technical solution, the second connecting layer can better adapt to the welding temperature, thereby further improving the welding effect between the first plate body and the second plate body.

[0026] In some embodiments of the present application, the thickness of the third layer is 0.1 mm-0.85 mm.

[0027] By adopting the above technical solution, the risk of the second connecting layer being welded through is effectively reduced, thereby effectively reducing the risk of the reinforcement layer contacting the heat exchange medium and effectively improving the corrosion of the reinforcement layer.

[0028] In some embodiments of the present application, the thickness of the fourth layer is 0.05 mm-0.1 mm.

[0029] By adopting the above technical solution, the penetration requirement for welding the first plate body and the second plate body can be met, thereby effectively improving the welding effect between the first plate body and the second plate body.

[0030] In some embodiments of the present application, the reinforcement layer includes at least one of a stainless steel layer, a carbon steel layer, a 5 series aluminum layer, a 6 series aluminum layer, and a 7 series aluminum layer.

[0031] By adopting the above technical solution, the heat exchange component can meet the yield strength requirements and tensile strength requirements, thereby further reducing the risk of deformation of the heat exchange component.

[0032] In some embodiments of the present application, the thickness of the reinforcement layer is 0.1 mm-0.8 mm.

[0033] By adopting the above technical solution, the weight and volume of the heat exchange assembly can be optimized while the heat exchange assembly meets the strength requirements, thereby effectively improving the energy density of the battery using the above heat exchange assembly.

[0034] In some embodiments of the present application, a first anti-corrosion layer is provided on the surface of the first plate body facing the second plate body; and / or a second anti-corrosion layer is provided on the surface of the second plate body facing the first plate body.

[0035] By adopting the above technical solution, the risk of the first plate and the second plate contacting the heat exchange medium is effectively reduced, thereby effectively improving the situation where the first plate and the second plate are corroded by the heat exchange medium.

[0036] In some embodiments of the present application, a first heat-resistant layer is provided on the surface of the first plate body facing the second plate body; and / or a second heat-resistant layer is provided on the surface of the second plate body facing the first plate body.

[0037] By adopting the above technical solution, when the first plate body and the second plate body are welded, heat can be blocked from being transferred from the surface of the first plate body facing the second plate body to the various layer structures of the first plate body, and from the surface of the second plate body facing the first plate body to the various layer structures of the second plate body, thereby effectively improving the thermal expansion of the first plate body and the second plate body, and effectively reducing the risk of stratification of the first plate body and the second plate body.

[0038] In some embodiments of the present application, the depth of the heat exchange channel is 3 mm-3.5 mm.

[0039] By adopting the above technical solution, the risk of cracking of the heat exchange component during the molding process of the heat exchange flow channel is effectively reduced.

[0040] In some embodiments of the present application, the width of the heat exchange channel is 3 mm-5 mm.

[0041] By adopting the above technical solution, the risk of cracking of the heat exchange component during the molding process of the heat exchange flow channel is effectively reduced.

[0042] In some embodiments of the present application, the wall of the heat exchange channel has a corner, and the corner is a rounded structure.

[0043] By adopting the above technical solution, the stress borne by the heat exchange component during the molding process of the heat exchange flow channel is effectively reduced, thereby effectively reducing the risk of cracking of the heat exchange component.

[0044] In some embodiments of the present application, the radius of the rounded corner structure is 2 mm-8 mm.

[0045] By adopting the above technical solution, the risk of cracking of the heat exchange component during the molding process of the heat exchange flow channel is further reduced.

[0046] An embodiment of the present application further provides a box, comprising a frame and the heat exchange assembly described in any one of the above embodiments, wherein the frame is connected to the heat exchange assembly to define an accommodating space for accommodating a battery cell.

[0047] The beneficial effect of the box provided by the embodiment of the present application is that the box provided by the embodiment of the present application effectively improves the structural strength of the box due to the use of the heat exchange component described in any of the above embodiments.

[0048] In some embodiments of the present application, the reinforcement layer is connected to the frame.

[0049] By adopting the above technical solution, the connection strength between the heat exchange component and the frame is effectively improved.

[0050] In some embodiments of the present application, the reinforcement layer is welded to the frame, and the material of the reinforcement layer is the same as that of the frame.

[0051] By adopting the above technical solution, not only the connection strength between the heat exchange component and the frame is further improved, but also the connection process between the heat exchange component and the frame is effectively simplified, thereby effectively improving the production efficiency of the heat exchange component.

[0052] In some embodiments of the present application, at least a portion of the reinforcing layer extends out from the sides of the first connecting layer and the second connecting layer to form a welding portion, and the side of the welding portion facing the first plate is welded to the frame.

[0053] By adopting the above technical solution, it is easy to connect the heat exchange component to the frame.

[0054] An embodiment of the present application further provides a battery, comprising a battery cell and the box body described in any of the above embodiments, wherein the battery cell is accommodated in the accommodation space, and the heat exchange component is used to adjust the temperature of the battery cell.

[0055] The beneficial effect of the battery provided by the embodiment of the present application is that the battery provided by the embodiment of the present application effectively improves the structural strength of the battery due to the use of the box body described in any of the above embodiments.

[0056] An embodiment of the present application also provides an electrical device including the above-mentioned battery.

[0057] The beneficial effect of the electric device provided by the embodiment of the present application is that the electric device provided by the embodiment of the present application effectively improves the structural strength of the electric device due to the use of the above-mentioned battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or exemplary technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0059] FIG1 is a schematic structural diagram of a vehicle provided in an embodiment of the present application;

[0060] FIG2 is a schematic diagram of an exploded structure of a battery provided in an embodiment of the present application;

[0061] FIG3 is a schematic diagram of the exploded structure of a heat exchange assembly provided in an embodiment of the present application;

[0062] FIG4 is a schematic structural diagram of a first plate body provided in one embodiment of the present application;

[0063] FIG5 is a schematic diagram of an exploded structure of a first plate body provided by another embodiment of the present application;

[0064] FIG6 is a schematic diagram of a top view of the first plate body provided in an embodiment of the present application;

[0065] FIG7 is a schematic cross-sectional view of the first plate shown in FIG6 along line AA;

[0066] FIG8 is an enlarged structural diagram of point B of the first plate shown in FIG7 ;

[0067] FIG9 is a schematic diagram of an exploded structure of a second plate provided in one embodiment of the present application;

[0068] FIG10 is a schematic diagram of an exploded structure of a second plate provided in another embodiment of the present application;

[0069] FIG11 is a schematic top view of the heat exchange assembly provided in an embodiment of the present application;

[0070] FIG12 is a schematic cross-sectional view of the heat exchange assembly shown in FIG11 along line CC.

[0071] Explanation of the accompanying drawings: 1000, vehicle; 100, battery; 10, casing; 11, first part; 12, second part; 13, heat exchange assembly; 131, first plate; 1311, first connecting layer; 13111, first layer; 13112, second layer; 132, second plate; 1321, reinforcing layer; 13211, welding portion; 1322, second connecting layer; 13221, third layer; 13222, fourth layer; 133, heat exchange channel; 1331, corner; 20, battery cell; 200, controller; 300, motor. DETAILED DESCRIPTION

[0072] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0073] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The terms "upper", "lower", "left", "right", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of description and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "first" and "second" are only used for the purpose of convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0074] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components in different embodiments are omitted. It should be understood that the thickness, length, width, and other dimensions of the various components in the embodiments of the present application shown in the drawings are for illustrative purposes only and should not constitute any limitation on the present application.

[0075] The battery referred to in the embodiments of this application refers to a single physical module comprising one or more battery cells to provide higher voltage and capacity. A battery generally includes a housing that encloses one or more battery cells. The housing can, to a certain extent, prevent liquids or other foreign matter from affecting the charging or discharging of the battery cells.

[0076] In related technologies, the housing typically includes a heat exchange assembly, which contacts the battery cells to absorb heat generated by them or transfer it to them, thereby regulating their temperature. This heat exchange assembly typically consists of two plates, at least one of which is provided with a heat exchange channel for circulating a heat exchange medium. This channel is typically formed in the plate using a stamping process, which reduces the structural strength of the plate where the channel is located, making it susceptible to deformation under external forces.

[0077] In order to reduce the risk of deformation of the heat exchange component, a reinforcement layer is provided on the second plate body of the heat exchange component provided in the embodiment of the present application, and the reinforcement layer is stacked and connected with the second connecting layer. When the second connecting layer is connected to the first connecting layer, the reinforcement layer can provide additional support for the entire heat exchange component to resist external forces, thereby effectively improving the structural strength of the heat exchange component and effectively reducing the risk of deformation of the heat exchange component.

[0078] The technical solutions described in the embodiments of the present application can be applied to batteries and electrical equipment using batteries, and can also be applied to other devices with temperature regulation requirements, such as fuel engines, gas stoves, boilers, etc. Among them, electrical equipment can be, but is not limited to, vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys and electric tools, etc. Vehicles can be fuel vehicles, gas vehicles or new energy vehicles, and new energy vehicles can be pure electric vehicles, hybrid vehicles or extended-range vehicles, etc. Spacecraft include airplanes, rockets, space shuttles and spacecraft, etc. Electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys and electric airplane toys, etc. Electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools and railway electric tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators and electric planers, etc.

[0079] Please refer to Figure 1, which is a structural schematic diagram of a vehicle 1000 provided in an embodiment of the present application. The vehicle 1000 can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 100 is provided inside the vehicle 1000, and the battery 100 can be provided at the bottom, head or tail of the vehicle 1000. The battery 100 can be used to power the vehicle 1000. For example, the battery 100 can serve as an 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 power the motor 300, for example, for starting, navigating and driving the vehicle 1000.

[0080] In some embodiments of the present application, the battery 100 can serve not only as an operating power source for the vehicle 1000 , but also as a driving power source for the vehicle 1000 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000 .

[0081] Please refer to Figure 2, which is an exploded view of a battery 100 according to an embodiment of the present application. The battery 100 includes a housing 10 and a battery cell 20, which is housed within the housing 10. The housing 10 provides a storage space for the battery cell 20 and can have various structures. In some embodiments, the housing 10 can include a first portion 11 and a second portion 12, which cover each other and together define a storage space for the battery cell 20. The second portion 12 can be a hollow structure with one end open. The first portion 11 can be a plate-like structure, with the first portion 11 covering the open side of the second portion 12, so that the first portion 11 and the second portion 12 together define a storage space. Alternatively, the first portion 11 and the second portion 12 can each be a hollow structure with one end open, with the open side of the first portion 11 covering the open side of the second portion 12. Of course, the housing 10 formed by the first portion 11 and the second portion 12 can have various shapes, such as a cylinder or a rectangular parallelepiped.

[0082] In some embodiments, the housing 10 may include a frame and a heat exchange assembly 13. The frame is used to define the aforementioned accommodation space. The heat exchange assembly 13 is a plate-like structure that covers the opening of the frame and is connected to the frame to form the aforementioned first portion 11 or second portion 12. The heat exchange assembly 13 contacts the battery cells 20 to absorb heat generated by the battery cells 20 or transfer heat to the battery cells 20, thereby regulating the temperature of the battery cells 20.

[0083] In some embodiments, the box 10 may serve as part of the chassis structure of the vehicle 1000. For example, a portion of the box 10 may form at least a portion of the floor of the vehicle 1000, or a portion of the box 10 may form at least a portion of the cross member and longitudinal member of the vehicle 1000.

[0084] In the battery 100, if there are multiple battery cells 20, the multiple battery cells 20 can be connected in series, in parallel, or in a hybrid connection. A hybrid connection refers to a combination of series and parallel connections among the multiple battery cells 20. The multiple battery cells 20 can be directly connected in series, in parallel, or in a hybrid connection, and then the entire battery cell 20 can be housed within the housing 10. Alternatively, the battery 100 can be constructed by first connecting multiple battery cells 20 in series, in parallel, or in a hybrid connection to form a battery module, which is then connected in series, in parallel, or in a hybrid connection to form a single unit and housed within the housing 10. The battery 100 may also include other structures, such as a busbar assembly for electrically connecting the multiple battery cells 20.

[0085] Each battery cell 20 may be a secondary battery or a primary battery. A secondary battery refers to a battery cell 20 that can be recharged to activate the active material after discharge and continue to be used. A primary battery refers to a battery cell 20 that cannot be recharged to activate the active material after the battery cell 20's power is exhausted and continues to be used. The battery cell 20 may also be a lithium-ion battery, a sodium-ion battery, a sodium-lithium-ion battery, a lithium metal battery, a sodium metal battery, a lithium-sulfur battery, a magnesium-ion battery, a nickel-hydrogen battery, a nickel-cadmium battery, a lead-acid battery, etc., but is not limited thereto. The battery cell 20 may be a cylindrical battery cell, a prismatic battery cell, a soft-pack battery cell, or a battery cell 20 of another shape. Prismatic battery cells include square-shell battery cells, blade-shaped battery cells, and polygonal prismatic battery cells. Polygonal prismatic battery cells, for example, hexagonal prismatic battery cells, are not particularly limited in this application.

[0086] The battery cell 20 in the embodiment of the present application includes an electrode assembly and a housing, and the electrode assembly is installed in the housing to protect the electrode assembly.

[0087] The electrode assembly is also called a battery cell. The electrode assembly consists of a positive electrode sheet, a negative electrode sheet and a separator. The electrode assembly mainly relies on the movement of metal ions between the positive electrode sheet and the negative electrode sheet to work. The positive electrode sheet includes a positive electrode collector and a positive electrode active material layer. The positive electrode active material layer is coated on the surface of the positive electrode collector. The part of the positive electrode collector that is not coated with the positive electrode active material layer protrudes from the part that is coated with the positive electrode active material layer. The part that is not coated with the positive electrode active material layer serves as the positive electrode tab, or a metal conductor is welded on the positive electrode collector and led out to serve as the positive electrode tab. Taking lithium-ion batteries as an example, the material of the positive electrode collector can be aluminum, and the positive electrode active material can be, but is not limited to, lithium cobalt oxide, lithium iron phosphate, ternary lithium, lithium manganese oxide, etc.

[0088] The negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer. The negative electrode active material layer is coated on the surface of the negative electrode current collector. The portion of the negative electrode current collector not coated with the negative electrode active material layer protrudes from the portion coated with the negative electrode active material layer. The portion not coated with the negative electrode active material layer serves as the negative electrode tab. Alternatively, a metal conductor is welded to the negative electrode current collector and extended to serve as the negative electrode tab. The negative electrode current collector can be made of copper, and the negative electrode active material can be, but is not limited to, carbon, silicon, and the like.

[0089] In order to ensure that a large current can pass without melting to a certain extent, there are multiple positive electrode tabs and they are stacked together, and there are multiple negative electrode tabs and they are stacked together.

[0090] The electrode assembly can be a wound structure or a laminated structure. The embodiments of the present application are not limited to this. The wound structure is mostly to weld the tabs to the current collector, and then arrange them in the order of positive electrode sheet - diaphragm - negative electrode sheet - diaphragm; and then form a cylindrical or square battery cell by winding. The laminated structure is mostly to lead out the tabs on the current collector, arrange the positive electrode sheet, negative electrode sheet and diaphragm in the order of positive electrode sheet - diaphragm - negative electrode sheet - diaphragm, and stack them together layer by layer to form a laminated battery cell; wherein, the diaphragm can be cut and directly laminated with the diaphragm sheet, or the diaphragm is not cut, but is folded in a Z shape. The material of the diaphragm can be but is not limited to PP (PolypropylFnF, polypropylene), PF (PolyFthylFnF, polyethylene), etc. The separator is an insulating film placed between the positive and negative electrodes. Its primary function is to separate the positive and negative electrodes and prevent electrons from freely passing through the battery cell 20, thus preventing short circuits to a certain extent. However, it allows ions in the electrolyte to pass freely between the positive and negative electrodes, forming a circuit between the positive and negative electrodes. The positive and negative electrodes are collectively referred to as electrodes. The positive and negative electrode tabs are collectively referred to as tabs.

[0091] The outer shell refers to a housing structure with a space inside that accommodates and protects the electrode assembly. The outer shell can be made of a material with a certain degree of hardness and strength. This prevents deformation when subjected to compression or collision, thus providing the battery cell 20 with greater structural strength and improved reliability. The outer shell can be made of, but is not limited to, copper, iron, aluminum, stainless steel, aluminum alloy, plastic, and the like.

[0092] The outer casing of the battery cell 20 is provided with electrode terminals. Electrode terminals are conductive components mounted on the outer casing. They connect to the tabs of the electrode assembly to output power from the battery cell 20 or charge the battery cell 20. A battery cell 20 generally has two electrode terminals, one connected to the positive and one connected to the negative tab of the electrode assembly, respectively. The electrode terminal connected to the positive tab is the positive electrode terminal, and the electrode terminal connected to the negative tab is the negative electrode terminal.

[0093] In some embodiments, the battery cell 20 also includes a pressure relief mechanism, which is disposed on the outer shell of the battery cell 20 so that when the temperature or pressure of the battery cell 20 exceeds a safety threshold, the gas or liquid inside the battery cell 20 can be released to relieve the pressure inside the battery cell 20 and reduce the risk of explosion of the battery cell 20.

[0094] In order to illustrate the technical solution provided by this application, a detailed description is given below with reference to specific drawings and embodiments.

[0095] First, referring to Figures 3 to 10 , embodiments of the present application provide a heat exchange assembly 13 having a heat exchange channel 133 formed therein. The heat exchange assembly 13 includes a first plate 131 and a second plate 132 . The first plate 131 includes a first connecting layer 1311 , and the second plate 132 includes a reinforcing layer 1321 and a second connecting layer 1322 . The reinforcing layer 1321 is stacked and connected to the second connecting layer 1322 . The second connecting layer 1322 is stacked and sealed to the first connecting layer 1311 to seal the heat exchange channel 133 .

[0096] The first plate 131 and the second plate 132 are the two main parts of the heat exchange assembly 13. The first plate 131 and the second plate 132 are stacked and connected to each other so that the first plate 131 and the second plate 132 together enclose a circulation space for circulating heat exchange medium.

[0097] The heat exchange channel 133 is used to provide a circulation path for the heat exchange medium. The heat exchange channel 133 can be arranged on the surface of the first plate body 131 facing the second plate body 132 (that is, the surface of the first connecting layer 1311 facing the second plate body 132), or can be arranged on the surface of the second plate body 132 facing the first plate body 131 (that is, the surface of the second connecting layer 1322 facing the first plate body 131), or can be arranged on both the surface of the first plate body 131 facing the second plate body 132 and the surface of the second plate body 132 facing the first plate body 131.

[0098] In some embodiments, a heat exchange channel 133 is recessed on the surface of the first connecting layer 1311 facing the second plate body 132, and the surface of the second connecting layer 1322 facing the first plate body 131 is flat. The second connecting layer 1322 and the first connecting layer 1311 are stacked and sealed to enclose the heat exchange channel 133 to form the above-mentioned circulation space.

[0099] In other embodiments, the surface of the first connecting layer 1311 facing the second plate body 132 is flat, and the surface of the second connecting layer 1322 facing the first plate body 131 is recessed with a heat exchange channel 133. The second connecting layer 1322 and the first connecting layer 1311 are stacked and sealed to enclose the heat exchange channel 133 to form the above-mentioned circulation space.

[0100] In some other embodiments, the surface of the first connecting layer 1311 facing the second plate body 132 and the surface of the second connecting layer 1322 facing the first plate body 131 are both recessed with heat exchange channels 133, and the second connecting layer 1322 and the first connecting layer 1311 are stacked and sealed to seal the heat exchange channels 133 on the first plate body 131 and the heat exchange channels 133 on the second plate body 132 to form the above-mentioned circulation space, wherein the heat exchange channels 133 on the first connecting layer 1311 constitute a part of the above-mentioned circulation space, and the heat exchange channels 133 on the second connecting layer 1322 constitute another part of the above-mentioned circulation space.

[0101] The first connecting layer 1311 is a layer structure used to connect the second plate 132. The first connecting layer 1311 can constitute the entire first plate 131 or serve as an inner layer structure of the first plate 131. The first connecting layer 1311 can be made of a metal material. In some embodiments, the first connecting layer 1311 can be a single component, that is, the first connecting layer 1311 is made of a single material. In other embodiments, the first connecting layer 1311 can include multiple layers, and the materials of each layer can be the same or different. The metal material can be, but is not limited to, a 1 series aluminum layer, a 3 series aluminum layer, a 4 series aluminum layer, etc.

[0102] The second connecting layer 1322 is the inner layer structure of the second plate 132, and the second connecting layer 1322 is used to connect the first plate 131. In some embodiments, the second connecting layer 1322 and the reinforcing layer 1321 are stacked and then combined using a rolling process to form the second plate 132. Of course, the second connecting layer 1322 and the reinforcing layer 1321 can also be connected using connection methods such as welding or bonding to form the second plate 132. The second connecting layer 1322 can be made of a metal material. In some embodiments, the second connecting layer 1322 can be a one-piece component, that is, the second connecting layer 1322 is made of a single material. In other embodiments, the second connecting layer 1322 can include multiple layer structures, and the materials of each layer structure can be the same or different. The metal material can be, but is not limited to, 1 series aluminum, 3 series aluminum, 4 series aluminum, etc.

[0103] It should be noted that the sealing connection between the first connection layer 1311 and the second connection layer 1322 may be, but is not limited to, welding or bonding.

[0104] In some embodiments, a heat exchange channel 133 is stamped on the surface of the first connecting layer 1311 facing the second plate body 132 and / or the surface of the second connecting layer 1322 facing the first plate body 131, and the second connecting layer 1322 is welded to the first connecting layer 1311 to close the heat exchange channel 133.

[0105] In other embodiments, a heat exchange channel 133 is stamped on the surface of the first connecting layer 1311 facing the second plate body 132 and / or the surface of the second connecting layer 1322 facing the first plate body 131, and the second connecting layer 1322 is bonded to the first connecting layer 1311 to seal the heat exchange channel 133.

[0106] In some other embodiments, the first plate body 131 and the second plate body 132 are connected into one body by a rolling process, and the heat exchange channel 133 is formed between the first plate body 131 and the second plate body 132 by a blowing process.

[0107] The reinforcement layer 1321 is the outer layer structure of the second plate 132. It is understood that the structural strength of the reinforcement layer 1321 is greater than the structural strength of the first connecting layer 1311 and the structural strength of the second connecting layer 1322. In some embodiments, the reinforcement layer 1321 is made of a high-strength metal material, which may include but is not limited to stainless steel, carbon steel, 5-series aluminum, 6-series aluminum, 7-series aluminum, etc. Compared to heat exchange components made of conventional metal materials such as 1-series aluminum and 3-series aluminum, the reinforcement layer 1321 has a greater structural strength. The structural strength includes but is not limited to yield strength and tensile strength. For example, the yield strength of the reinforcement layer 1321 is greater than 54 MPa, and the tensile strength of the reinforcement layer 1321 is greater than 95 MPa.

[0108] In some embodiments, on a reference plane perpendicular to the stacking direction of the first plate 131 and the second plate 132, at least a portion of the projection of the heat exchange channel 133 overlaps with a projection of the reinforcement layer 1321. In other words, on the stacking direction of the first plate 131 and the second plate 132, at least a portion of the heat exchange channel 133 is disposed opposite the reinforcement layer 1321. For example, on a reference plane perpendicular to the stacking direction of the first plate 131 and the second plate 132, the entire projection of the heat exchange channel 133 overlaps with a projection of the reinforcement layer 1321. When an external force acts on the portion of the heat exchange channel 133 opposite the reinforcement layer 1321, the reinforcement layer 1321 can provide support to the portion of the heat exchange channel 133 opposite the reinforcement layer 1321 to resist the external force, thereby reducing the risk of deformation of the heat exchange channel 133.

[0109] The second plate body 132 of the heat exchange component 13 provided in the embodiment of the present application is provided with a reinforcement layer 1321, and the reinforcement layer 1321 is stacked and connected with the second connecting layer 1322. When the second connecting layer 1322 is connected to the first connecting layer 1311, the reinforcement layer 1321 can provide additional support for the entire heat exchange component 13 to resist external forces, thereby effectively improving the structural strength of the heat exchange component 13 and effectively reducing the risk of deformation of the heat exchange component 13.

[0110] In some embodiments of the present application, the first connection layer 1311 and the second connection layer 1322 are welded.

[0111] During the welding process, in order to better seal the heat exchange channel 133 , the first connecting layer 1311 and the second connecting layer 1322 can be welded along the edge of the first plate 131 , and at the same time, the first connecting layer 1311 and the second connecting layer 1322 can be welded along the edge of the heat exchange channel 133 .

[0112] In some embodiments, the first connection layer 1311 and the second connection layer 1322 are welded using a furnace brazing process.

[0113] Of course, in other embodiments, the first connection layer 1311 and the second connection layer 1322 may be welded by laser welding, arc welding, or the like.

[0114] By adopting the above technical solution, the connection process of the first plate body 131 and the second plate body 132 is effectively simplified, thereby effectively improving the production efficiency of the heat exchange assembly 13.

[0115] In some embodiments of the present application, referring to FIG. 5 , the first connecting layer 1311 includes a first layer 13111 and a second layer 13112 that are stacked and connected, the second layer 13112 is welded to the second connecting layer 1322 , and the melting point of the second layer 13112 is lower than the melting point of the first layer 13111 .

[0116] In other words, in this embodiment, the first connection layer 1311 is composed of at least two stacked layers, wherein the first layer 13111 can serve as the base structure of the first connection layer 1311 , and the second layer 13112 can serve as the connection layer structure for connecting the second plate 132 .

[0117] When the first connecting layer 1311 and the second connecting layer 1322 are welded, since the melting point of the second layer 13112 is lower than the melting point of the first layer 13111, the second layer 13112 is easier to melt than the first layer 13111, so that the first connecting layer 1311 can better adapt to the welding temperature, thereby effectively improving the welding effect between the first plate 131 and the second plate 132.

[0118] In some embodiments of the present application, the first layer 13111 is a 3-series aluminum layer or a 1-series aluminum layer, and the second layer 13112 is a 4-series aluminum layer.

[0119] In the related art, the melting point of 4-series aluminum is lower than the melting points of 1-series aluminum and 3-series aluminum.

[0120] By adopting the above technical solution, the first connection layer 1311 can better adapt to the welding temperature, thereby further improving the welding effect between the first plate body 131 and the second plate body 132 .

[0121] In some embodiments of the present application, the thickness of the first layer 13111 is 0.1 mm-0.85 mm.

[0122] The thickness of the first layer 13111 refers to the dimension of the first layer 13111 along the stacking direction of the first connecting layer 1311 and the second connecting layer 1322. The thicknesses of various parts of the first layer 13111 may be the same or different. It should be noted that when the first layer 13111 has at least two parts with different thicknesses, the thicknesses of various parts of the first layer 13111 are within the range of 0.1mm-0.85mm.

[0123] When the first connecting layer 1311 includes a first layer 13111 and a second layer 13112, and the first layer 13111 is a 3-series aluminum layer or a 1-series aluminum layer, and the second layer 13112 is a 4-series aluminum layer, the thickness of the first layer 13111 is 0.1 mm to 0.85 mm, that is, the minimum thickness of the first layer 13111 is 0.1 mm to reduce the risk of the first layer 13111 being welded through during welding. The thickness of the first layer 13111 can be determined according to actual application requirements, and can specifically be 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.85 mm, etc.

[0124] By adopting the above technical solution, the risk of the first connecting layer 1311 being welded through is effectively reduced, thereby effectively reducing the risk of the reinforcing layer 1321 contacting the heat exchange medium, and effectively improving the corrosion of the reinforcing layer 1321.

[0125] Of course, on the other hand, when the first connecting layer 1311 includes a first layer 13111 and a second layer 13112, the first layer 13111 is a 3-series aluminum layer or a 1-series aluminum layer, and the second layer 13112 is a 4-series aluminum layer, the maximum thickness of the first layer 13111 is limited to 0.85 mm, so that the heat exchange component 13 will not be significantly increased in weight and volume due to the excessive thickness of the first connecting layer 1311, thereby effectively improving the energy density of the battery 100 using the above-mentioned heat exchange component 13.

[0126] In some embodiments of the present application, the thickness of the second layer 13112 is 0.05 mm-0.1 mm.

[0127] The thickness of the second layer 13112 refers to the size of the second layer 13112 along the stacking direction of the first connecting layer 1311 and the second connecting layer 1322 before the first connecting layer 1311 and the second connecting layer 1322 are welded. The thickness of each part of the second layer 13112 may be the same or different. It should be noted that when the second layer 13112 has at least two parts with different thicknesses, the thickness of each part of the second layer 13112 is within the range of 0.05mm-0.1mm.

[0128] When the first connecting layer 1311 includes a first layer 13111 and a second layer 13112, and the first layer 13111 is a 3-series aluminum layer or a 1-series aluminum layer, and the second layer 13112 is a 4-series aluminum layer, the thickness of the second layer 13112 is 0.05 mm to 0.1 mm, that is, the minimum thickness of the second layer 13112 is 0.05 mm. In this way, after the second layer 13112 is melted, the weld between the first plate 131 and the second plate 132 can have sufficient penetration. The thickness of the second layer 13112 can be determined according to actual application requirements, and can be 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, 0.1 mm, etc.

[0129] By adopting the above technical solution, the penetration requirement for welding the first plate body 131 and the second plate body 132 can be met, thereby effectively improving the welding effect between the first plate body 131 and the second plate body 132.

[0130] In some embodiments of the present application, referring to FIG. 10 , the second connecting layer 1322 includes a third layer 13221 and a fourth layer 13222 that are stacked and connected. The fourth layer 13222 is welded to the first connecting layer 1311 , and the melting point of the fourth layer 13222 is lower than the melting point of the third layer 13221 .

[0131] In other words, in this embodiment, the second connection layer 1322 is composed of at least two stacked layers, wherein the third layer 13221 can serve as the base structure of the second connection layer 1322 , and the fourth layer 13222 can serve as the connection layer structure for connecting to the first plate 131 .

[0132] When the second connecting layer 1322 is welded to the first connecting layer 1311, since the melting point of the fourth layer 13222 is lower than the melting point of the third layer 13221, the fourth layer 13222 is easier to melt than the third layer 13221, so that the second connecting layer 1322 can better adapt to the welding temperature, thereby effectively improving the welding effect between the first plate 131 and the second plate 132.

[0133] In some embodiments of the present application, the third layer 13221 is a 3-series aluminum layer or a 1-series aluminum layer, and the fourth layer 13222 is a 4-series aluminum layer.

[0134] In the related art, the melting point of 4-series aluminum is lower than the melting points of 1-series aluminum and 3-series aluminum.

[0135] By adopting the above technical solution, the second connection layer 1322 can better adapt to the welding temperature, thereby further improving the welding effect between the first plate 131 and the second plate 132 .

[0136] In some embodiments of the present application, the thickness of the third layer 13221 is 0.1 mm-0.85 mm.

[0137] The thickness of the third layer 13221 refers to the dimension of the third layer 13221 along the stacking direction of the first connecting layer 1311 and the second connecting layer 1322. The thickness of each part of the third layer 13221 may be the same or different. It should be noted that when the third layer 13221 has at least two parts with different thicknesses, the thickness of each part of the third layer 13221 is within the range of 0.1mm-0.85mm.

[0138] When the second connecting layer 1322 includes a third layer 13221 and a fourth layer 13222, and the third layer 13221 is a 3-series aluminum layer or a 1-series aluminum layer, and the fourth layer 13222 is a 4-series aluminum layer, the thickness of the third layer 13221 is 0.1 mm to 0.85 mm, that is, the minimum thickness of the third layer 13221 is 0.1 mm, to reduce the risk of the third layer 13221 being welded through during welding. The thickness of the third layer 13221 can be determined according to actual application requirements, and can specifically be 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.85 mm, etc.

[0139] By adopting the above technical solution, the risk of the second connecting layer 1322 being welded through is effectively reduced, thereby effectively reducing the risk of the reinforcement layer 1321 contacting the heat exchange medium, and effectively improving the corrosion of the reinforcement layer 1321.

[0140] Of course, on the other hand, when the second connecting layer 1322 includes a third layer 13221 and a fourth layer 13222, the third layer 13221 is a 3-series aluminum layer or a 1-series aluminum layer, and the fourth layer 13222 is a 4-series aluminum layer, the maximum thickness of the third layer 13221 is limited to 0.85 mm, so that the heat exchange component 13 will not be greatly increased in weight and volume due to the excessive thickness of the second connecting layer 1322, thereby effectively improving the energy density of the battery 100 using the above-mentioned heat exchange component 13.

[0141] In some embodiments of the present application, the thickness of the fourth layer 13222 is 0.05 mm-0.1 mm.

[0142] The thickness of the fourth layer 13222 refers to the size of the fourth layer 13222 along the stacking direction of the first connecting layer 1311 and the second connecting layer 1322 before the first connecting layer 1311 and the second connecting layer 1322 are welded. The thickness of each part of the fourth layer 13222 may be the same or different. It should be noted that when the fourth layer 13222 has at least two parts with different thicknesses, the thickness of each part of the fourth layer 13222 is within the range of 0.05mm-0.1mm.

[0143] When the second connecting layer 1322 includes a third layer 13221 and a fourth layer 13222, and the third layer 13221 is a 3-series aluminum layer or a 1-series aluminum layer, and the fourth layer 13222 is a 4-series aluminum layer, the thickness of the fourth layer 13222 is 0.05 mm to 0.1 mm, that is, the minimum thickness of the fourth layer 13222 is 0.05 mm. In this way, after the fourth layer 13222 is melted, the weld between the first plate 131 and the second plate 132 has sufficient penetration. The thickness of the fourth layer 13222 can be determined according to actual application requirements, and can be 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, 0.1 mm, etc.

[0144] By adopting the above technical solution, the penetration requirement for welding the first plate body 131 and the second plate body 132 can be met, thereby effectively improving the welding effect between the first plate body 131 and the second plate body 132.

[0145] In some embodiments, please refer to FIG. 5 and FIG. 10 , the first plate 131 includes a first connecting layer 1311, which constitutes the entire first plate 131. The first connecting layer 1311 includes a first layer 13111 and a second layer 13112. The first layer 13111 and the second layer 13112 are stacked and connected. The first layer 13111 is a 1-series aluminum layer or a 3-series aluminum layer, and the second layer 13112 is a 4-series aluminum layer. The second plate 132 It includes a reinforcing layer 1321 and a second connecting layer 1322, the reinforcing layer 1321 and the second connecting layer 1322 are stacked and connected, the second connecting layer 1322 includes a third layer 13221 and a fourth layer 13222, the third layer 13221 and the fourth layer 13222 are stacked and connected, the third layer 13221 is a 1 series aluminum layer or a 3 series aluminum layer, the fourth layer 13222 is a 4 series aluminum layer, and the second layer 13112 and the fourth layer 13222 are sealed and connected.

[0146] In some other embodiments, please refer to Figures 4 and 10 together. The first plate body 131 includes a first connecting layer 1311, and the first connecting layer 1311 constitutes the entire first plate body 131. The first connecting layer 1311 is an integral component and the first connecting layer 1311 is a 1 series aluminum layer or a 3 series aluminum layer. The second plate body 132 includes a reinforcing layer 1321 and a second connecting layer 1322. The reinforcing layer 1321 is stacked and connected with the second connecting layer 1322. The second connecting layer 1322 includes a third layer 13221 and a fourth layer 13222. The third layer 13221 is stacked and connected with the fourth layer 13222. The third layer 13221 is a 1 series aluminum layer or a 3 series aluminum layer. The fourth layer 13222 is a 4 series aluminum layer. The fourth layer 13222 is sealed and connected to the first connecting layer 1311.

[0147] In some other embodiments, please refer to Figures 4 and 9 together. The first plate body 131 includes a first connecting layer 1311, which constitutes the entire first plate body 131. The first connecting layer 1311 is an integral component and the first connecting layer 1311 is a 1 series aluminum layer or a 3 series aluminum layer. The second plate body 132 includes a reinforcing layer 1321 and a second connecting layer 1322. The reinforcing layer 1321 is stacked and connected with the second connecting layer 1322. The second connecting layer 1322 is an integral component and is a 1 series aluminum layer or a 3 series aluminum layer. The second connecting layer 1322 is sealed and connected to the first connecting layer 1311.

[0148] In some embodiments of the present application, the reinforcement layer 1321 includes at least one of a stainless steel layer, a carbon steel layer, a 5 series aluminum layer, a 6 series aluminum layer, and a 7 series aluminum layer.

[0149] By adopting the above technical solution, the heat exchange component 13 can meet the yield strength requirements and the tensile strength requirements, thereby further reducing the risk of deformation of the heat exchange component 13.

[0150] In some embodiments of the present application, the thickness of the reinforcement layer 1321 is 0.1 mm-0.8 mm.

[0151] The thickness of the reinforcing layer 1321 refers to its dimension along the stacking direction of the first connecting layer 1311 and the second connecting layer 1322. The thickness of each portion of the reinforcing layer 1321 may be the same or different. It should be noted that when the reinforcing layer 1321 has at least two portions with different thicknesses, the thickness of each portion of the reinforcing layer 1321 is within the range of 0.1 mm to 0.8 mm. The thickness of the reinforcing layer 1321 can be determined based on actual application requirements, and may specifically be 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, etc.

[0152] The minimum thickness of the reinforcing layer 1321 is 0.1 mm, so that the heat exchange component 13 meets the strength requirements. The maximum thickness of the reinforcing layer 1321 is 0.8 mm, which can optimize the weight and volume of the heat exchange component 13, thereby effectively improving the energy density of the battery 100 using the above-mentioned heat exchange component 13.

[0153] In some embodiments of the present application, a first anti-corrosion layer (not shown) is provided on the surface of the first plate 131 facing the second plate 132 .

[0154] In some other embodiments of the present application, a second anti-corrosion layer (not shown) is provided on the surface of the second plate 132 facing the first plate 131 .

[0155] In some other embodiments of the present application, a first anti-corrosion layer is provided on the surface of the first plate body 131 facing the second plate body 132 , and a second anti-corrosion layer is provided on the surface of the second plate body 132 facing the first plate body 131 .

[0156] The first and second anti-corrosion layers are layered structures with anti-corrosion properties, designed to mitigate corrosion of the first and second plates 131, 132 by the heat exchange medium. The first anti-corrosion layer can be applied to the surface of the first plate 131 facing the second plate 132 using methods such as electroplating, plastic spraying, or coating. Similarly, the second anti-corrosion layer can be applied to the surface of the second plate 132 facing the first plate 131 using methods such as electroplating, plastic spraying, or coating. The first and second anti-corrosion layers can be, but are not limited to, nickel layers, aluminum-silicon layers, zinc-nickel layers, and the like.

[0157] By adopting the above technical solution, the risk of the first plate 131 and the second plate 132 contacting the heat exchange medium is effectively reduced, thereby effectively improving the situation where the first plate 131 and the second plate 132 are corroded by the heat exchange medium.

[0158] In some embodiments of the present application, a first heat-resistant layer (not shown) is provided on the surface of the first plate 131 facing the second plate 132 .

[0159] In some other embodiments of the present application, a second heat-resistant layer (not shown) is provided on the surface of the second plate 132 facing the first plate 131 .

[0160] In some other embodiments of the present application, a first heat-resistant layer is provided on the surface of the first plate body 131 facing the second plate body 132 , and a second heat-resistant layer is provided on the surface of the second plate body 132 facing the first plate body 131 .

[0161] The first and second heat-resistant layers are heat-insulating layers that reduce heat transfer into the interior of the first plate 131 and the interior of the second plate 132, thereby reducing the risk of delamination between the first and second plates 131, 132. The first heat-resistant layer can be applied to the surface of the first plate 131 facing the second plate 132 using a process such as electroplating, plastic spraying, or coating. Similarly, the second heat-resistant layer can be applied to the surface of the second plate 132 facing the first plate 131 using a process such as electroplating, plastic spraying, or coating.

[0162] In some embodiments, the first heat-resistant layer and the above-mentioned first anti-corrosion layer are a composite layer structure, and the second heat-resistant layer and the above-mentioned second anti-corrosion layer are a composite layer structure. In other words, the composite layer structure has both heat-resistant and anti-corrosion functions.

[0163] By adopting the above technical solution, when the first plate body 131 and the second plate body 132 are welded, heat can be blocked from being transferred from the surface of the first plate body 131 facing the second plate body 132 to the various layer structures of the first plate body 131, and from the surface of the second plate body 132 facing the first plate body 131 to the various layer structures of the second plate body 132, thereby effectively improving the thermal expansion of the first plate body 131 and the second plate body 132, and effectively reducing the risk of stratification of the first plate body 131 and the second plate body 132.

[0164] In some embodiments of the present application, please refer to FIG. 6 to FIG. 8 , the depth H of the heat exchange channel 133 is 3 mm-3.5 mm.

[0165] The depth H of the heat exchange channel 133 refers to the dimension of the heat exchange channel 133 along the stacking direction of the first connecting layer 1311 and the second connecting layer 1322. The depth H of the heat exchange channel 133 can be determined based on actual application requirements and can be 3 mm, 3.1 mm, 3.2 mm, 3.3 mm, 3.4 mm, 3.5 mm, etc.

[0166] In the related art, if the depth H of the heat exchange channel 133 is too large, the heat exchange component 13 is prone to cracking during the molding process of the heat exchange channel 133. By adopting the above technical solution, the risk of the heat exchange component 13 cracking during the molding process of the heat exchange channel 133 is effectively reduced.

[0167] In some embodiments of the present application, please refer to FIG. 6 to FIG. 8 , the width W of the heat exchange channel 133 is 3 mm-5 mm.

[0168] The width W of the heat exchange channel 133 refers to the dimension of the heat exchange channel 133 perpendicular to the stacking direction of the first connecting layer 1311 and the second connecting layer 1322 and the extension direction of the heat exchange channel 133. The width W of the heat exchange channel 133 can be determined according to actual application requirements and can be 3 mm, 3.1 mm, 3.2 mm, 3.3 mm, 3.4 mm, 3.5 mm, etc.

[0169] In related technologies, if the width W of the heat exchange channel 133 is too large, the heat exchange component 13 is prone to cracking during the molding process of the heat exchange channel 133. By adopting the above technical solution, the risk of the heat exchange component 13 cracking during the molding process of the heat exchange channel 133 is effectively reduced.

[0170] In some embodiments of the present application, please refer to FIG. 6 to FIG. 8 . The wall of the heat exchange channel 133 has a corner 1331 , and the corner 1331 is a rounded structure.

[0171] It should be noted that, when the heat exchange channel 133 is provided on the surface of the first plate body 131 facing the second plate body 132, the corner 1331 can be a portion of the first plate body 131 for connecting the side wall of the heat exchange channel 133 and the bottom wall of the first plate body 131, or it can be a portion of the first plate body 131 for connecting the side wall of the heat exchange channel 133 and the top wall of the first plate body 131, wherein the bottom wall of the first plate body 131 refers to the wall of the first plate body 131 farthest from the second plate body 132 along the stacking direction of the first connecting layer 1311 and the second connecting layer 1322, that is, the bottom wall of the heat exchange channel 133, and the top wall of the first plate body 131 refers to the wall of the first plate body 131 closest to the second plate body 132 along the stacking direction of the first connecting layer 1311 and the second connecting layer 1322 wall; when the heat exchange channel 133 is provided on the surface of the second plate body 132 facing the first plate body 131, the corner 1331 can be a part of the second plate body 132 for connecting the side wall of the heat exchange channel 133 and the bottom wall of the second plate body 132, or it can be a part of the second plate body 132 for connecting the side wall of the heat exchange channel 133 and the top wall of the second plate body 132, wherein the bottom wall of the second plate body 132 refers to the wall of the second plate body 132 farthest from the first plate body 131 along the stacking direction of the first connecting layer 1311 and the second connecting layer 1322, that is, the bottom wall of the heat exchange channel 133, and the top wall of the second plate body 132 refers to the wall of the second plate body 132 closest to the first plate body 131 along the stacking direction of the first connecting layer 1311 and the second connecting layer 1322.

[0172] By adopting the above technical solution, the stress borne by the heat exchange component 13 during the molding process of the heat exchange channel 133 is effectively reduced, thereby effectively reducing the risk of cracking of the heat exchange component 13.

[0173] In some embodiments of the present application, please refer to FIG. 6 to FIG. 8 , the radius R of the rounded corner structure is 2 mm-8 mm.

[0174] The radius R of the rounded corner structure can be determined according to actual application requirements, and can be specifically 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, etc.

[0175] By adopting the above technical solution, the risk of cracking of the heat exchange component 13 during the molding process of the heat exchange channel 133 is further reduced.

[0176] In the second aspect, referring to FIG. 2 , an embodiment of the present application further provides a box 10 , comprising a frame and a heat exchange assembly 13 as described in any of the above embodiments, wherein the frame is connected to the heat exchange assembly 13 to define an accommodation space for accommodating a battery cell 20 .

[0177] The box body 10 provided in the embodiment of the present application effectively improves the structural strength of the box body 10 because it adopts the heat exchange component 13 described in any of the above embodiments.

[0178] In some embodiments of the present application, the reinforcement layer 1321 is connected to the frame.

[0179] The connection method between the reinforcement layer 1321 and the frame can be, but is not limited to, welding, bonding, fastening, clamping, etc.

[0180] By adopting the above technical solution, the connection strength between the heat exchange component 13 and the frame is effectively improved.

[0181] In some embodiments of the present application, the reinforcement layer 1321 is welded to the frame, and the material of the reinforcement layer 1321 is the same as that of the frame.

[0182] In some embodiments, the reinforcement layer 1321 is a steel layer, the frame is a steel frame, and the reinforcement layer 1321 and the frame are welded.

[0183] By adopting the above technical solution, not only the connection strength between the heat exchange component 13 and the frame is further improved, but also the connection process between the heat exchange component 13 and the frame is effectively simplified, thereby effectively improving the production efficiency of the heat exchange component 13.

[0184] In some embodiments of the present application, please refer to Figures 11 and 12 together. At least a portion of the reinforcing layer 1321 extends out from the side of the first connecting layer 1311 and the side of the second connecting layer 1322 to form a welding portion 13211, and the welding portion 13211 is welded to the frame on the side facing the first plate body 131.

[0185] In some embodiments, opposite sides of the reinforcement layer 1321 extend out from the sides of the first connection layer 1311 and the sides of the second connection layer 1322 to form two welding portions 13211 , and the two welding portions 13211 are welded to the frame.

[0186] In other embodiments, the peripheral side of the reinforcing layer 1321 extends out from the side of the first connecting layer 1311 and the side of the second connecting layer 1322 to form a welding portion 13211 with a ring structure, and the welding portion 13211 is welded to the frame.

[0187] It should be noted that the sides of the first connecting layer 1311 and the second connecting layer 1322 can be peeled off so that the sides of the reinforcing layer 1321 extend out of the sides of the first connecting layer 1311 and the second connecting layer 1322 to form a welding portion 13211.

[0188] By adopting the above technical solution, it is convenient to connect the heat exchange component 13 to the frame.

[0189] In the third aspect, please refer to Figure 2. The embodiment of the present application also provides a battery 100, including a battery cell 20 and the box body 10 described in any of the above embodiments. The battery cell 20 is accommodated in the accommodating space, and the heat exchange component 13 is used to adjust the temperature of the battery cell 20.

[0190] The battery 100 provided in the embodiment of the present application adopts the box body 10 described in any of the above embodiments, thereby effectively improving the structural strength of the battery 100.

[0191] In the fourth aspect, please refer to FIG1 , an embodiment of the present application further provides an electrical device including the above-mentioned battery 100 .

[0192] The electrical equipment provided in the embodiment of the present application effectively improves the structural strength of the electrical equipment due to the use of the above-mentioned battery 100.

[0193] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A heat exchange component, characterized in that: A heat exchange channel is formed inside the heat exchange component, and the heat exchange component includes: A first plate body, comprising a first connecting layer; The second plate body includes a reinforcing layer and a second connecting layer. The reinforcing layer is stacked and connected with the second connecting layer. The second connecting layer is stacked and sealed with the first connecting layer to close the heat exchange channel.

2. The heat exchange assembly according to claim 1, characterized in that: The first connecting layer is welded to the second connecting layer.

3. The heat exchange assembly according to claim 2, characterized in that: The first connection layer comprises a first layer and a second layer connected in a stacked manner, the second layer is welded to the second connection layer, and the melting point of the second layer is lower than that of the first layer.

4. The heat exchange assembly according to claim 3, characterized in that: The first layer is a 3-series aluminum layer or a 1-series aluminum layer, and the second layer is a 4-series aluminum layer.

5. The heat exchange assembly according to claim 3 or 4, characterized in that: The thickness of the first layer is 0.1 mm to 0.85 mm.

6. The heat exchange assembly according to any one of claims 3 to 5, characterized in that: The thickness of the second layer is 0.05 mm to 0.1 mm.

7. The heat exchange assembly according to any one of claims 2 to 6, characterized in that: The second connection layer comprises a third layer and a fourth layer connected in a stacked manner. The fourth layer is welded to the first connection layer. The melting point of the fourth layer is lower than that of the third layer.

8. The heat exchange assembly according to claim 7, characterized in that: The third layer is a 3-series aluminum layer or a 1-series aluminum layer, and the fourth layer is a 4-series aluminum layer.

9. The heat exchange assembly according to claim 7 or 8, characterized in that: The thickness of the third layer is 0.1 mm to 0.85 mm.

10. The heat exchange assembly according to any one of claims 7 to 9, characterized in that: The thickness of the fourth layer is 0.05 mm to 0.1 mm.

11. The heat exchange assembly according to any one of claims 1 to 10, characterized in that: The reinforcement layer comprises at least one of a stainless steel layer, a carbon steel layer, a 5 series aluminum layer, a 6 series aluminum layer, and a 7 series aluminum layer.

12. The heat exchange assembly according to claim 11, characterized in that: The thickness of the reinforcement layer is 0.1 mm to 0.8 mm.

13. The heat exchange assembly according to any one of claims 1 to 12, characterized in that: A first anti-corrosion layer is provided on the surface of the first plate body facing the second plate body; and / or, A second anti-corrosion layer is provided on the surface of the second plate body facing the first plate body.

14. The heat exchange assembly according to any one of claims 1 to 13, characterized in that: A first heat-resistant layer is provided on the surface of the first plate body facing the second plate body; and / or, A second heat-resistant layer is provided on the surface of the second plate body facing the first plate body.

15. The heat exchange assembly according to any one of claims 1 to 14, characterized in that: The depth of the heat exchange channel is 3mm-3.5mm.

16. The heat exchange assembly according to any one of claims 1 to 15, characterized in that: The width of the heat exchange channel is 3mm-5mm.

17. The heat exchange assembly according to any one of claims 1 to 16, characterized in that: The wall of the heat exchange channel has a corner portion, and the corner portion is a rounded structure.

18. The heat exchange assembly according to claim 17, characterized in that: The radius of the rounded corner structure is 2mm-8mm.

19. A box, characterized in that: The box body includes a frame and the heat exchange assembly according to any one of claims 1 to 18, wherein the frame is connected to the heat exchange assembly to define an accommodating space for accommodating a battery cell.

20. The box according to claim 19, characterized in that The reinforcement layer is connected to the frame.

21. The box according to claim 20, characterized in that The reinforcement layer is welded to the frame, and the material of the reinforcement layer is the same as that of the frame.

22. The box according to claim 21, characterized in that At least a portion of the reinforcing layer extends out of the side of the first connecting layer and the side of the second connecting layer to form a welding portion, and the side of the welding portion facing the first plate body is welded to the frame.

23. A battery, characterized in that: The battery includes a battery cell and a box according to any one of claims 19 to 22, the battery cell is accommodated in the accommodation space, and the heat exchange assembly is used to adjust the temperature of the battery cell.

24. An electrical device, characterized in that: The electric device comprises the battery as claimed in claim 23.

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