Heat exchange piece, battery and electric device

Abstract

The utility model discloses a heat exchange piece, a battery and an electric device. The heat exchange piece comprises a plurality of connecting pipes which are arranged at intervals; the current collector is provided with an inlet and an outlet, the inlet is used for inputting a medium, the outlet is used for outputting the medium, the current collector is connected and communicated with each connecting pipe, the current collector and the connecting pipes jointly form a plurality of liquid flow paths which are arranged in parallel, and each liquid flow path is from the inlet to the outlet; and the reinforcing piece is arranged on the current collector and is configured to reinforce the strength of the current collector. According to the technical scheme, the reinforcing piece capable of reinforcing the strength of the current collector is arranged, so that the current collector is not prone to deformation, collapse and the like in the assembling and using process, the airtight failure risk is reduced, the overall structural strength of the heat exchange piece is improved, and the service life of the heat exchange piece is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a heat exchange component, a battery and an electrical device. Background Art

[0002] The structural strength of heat exchangers has a significant impact on their service life and the risk of airtight failure. Therefore, how to effectively improve the structural strength of heat exchangers has become a research and development focus in this field. Utility Model Content

[0003] The embodiments of the utility model provide a heat exchange component, a battery and an electrical device, which improve the overall structural strength of the heat exchange component, thereby improving the reliability of the battery and the electrical device.

[0004] In the first aspect, an embodiment of the utility model provides a heat exchange component, including: a plurality of connecting tubes, arranged at intervals; a current collector, having an inlet and an outlet, the inlet being used to input a medium, the outlet being used to output a medium, the current collector being connected and communicated with each connecting tube, the current collector and the plurality of connecting tubes together forming a plurality of liquid flow paths arranged in parallel, each liquid flow path being from the inlet to the outlet; a reinforcing member, arranged on the current collector, and configured to strengthen the strength of the current collector.

[0005] In the above technical solution, by providing a reinforcing member that can enhance the strength of the current collector, the current collector is less likely to deform, collapse, and other problems during assembly and use, thereby reducing the risk of airtight failure and improving the overall structural strength and service life of the heat exchange component.

[0006] In some embodiments, both the current collector and the connecting tube are connected to the reinforcement member.

[0007] In the above technical solution, the reinforcement piece can strengthen the strength of the current collector and the connecting tube. Moreover, compared with the current collector, the structural design of the reinforcement piece is more flexible, so it is easier to achieve connection with the connecting tube, improve the connection reliability and sealing, so the reinforcement piece connects the connecting tube and the current collector, which is conducive to reducing the risk of connection sealing failure of the connecting tube.

[0008] In some embodiments, the reinforcement member is disposed outside the current collector, and at least a portion of the reinforcement member is in contact with the outer surface of the current collector.

[0009] In the above technical solution, the reinforcement is arranged outside the current collector, which facilitates the assembly of the reinforcement and the current collector and is not affected by the internal space size of the current collector; and by at least part of the reinforcement being bonded to the outer surface of the current collector, the overall thickness of the bonding area can be increased, thereby effectively improving the strength.

[0010] In some embodiments, the current collector is provided with a first opening, the reinforcement is provided with a second opening opposite to the first opening, the periphery of the second opening is provided with a connecting flange, the connecting tube is passed through the first opening and the second opening, and the connecting tube is connected to the inner circumference of the connecting flange.

[0011] In the above technical solution, by providing the connection flange, the contact area between the reinforcement member and the connection pipe, such as the welding area, can be increased, thereby improving the connection reliability and sealing reliability.

[0012] In some embodiments, the connecting flange is disposed through the first opening.

[0013] In the above technical solution, the connecting flange is passed through the first opening to reduce the occupied space in the thickness direction of the plate and improve the strength reinforcement effect of the reinforcement member on the collector, especially the strength near the first opening; and the connecting flange can separate the wall surface of the first opening from the connecting tube, which is not easy to form a weak sealing area.

[0014] In some embodiments, the outer peripheral surface of the connecting flange is in contact with the wall surface of the reinforcement member forming the first opening.

[0015] In the above technical solution, the connecting flange has a better effect of improving the strength of the wall near the first opening, and is easy to connect the connecting flange to the wall forming the first opening, such as welding, to further improve the sealing effect.

[0016] In some embodiments, the connecting tube includes a connected main body section and a connecting section. In a direction perpendicular to the penetration direction of the second opening, the size of the connecting section is smaller than the size of the main body section. The connecting section is penetrated through the first opening and the second opening, and the outer peripheral surface of the connecting section is connected to the inner peripheral surface of the connecting flange.

[0017] In the above technical solution, a step surface is formed at the connection of the connected main body section and the connecting section, that is, a part of the end surface of the main body section facing the connecting section is connected to the connecting section and the other part is formed as a step surface. The step surface can limit the limit size of the connecting tube inserted into the first opening and the second opening, so that the connecting section can be inserted into the first opening and the second opening and connected to the connecting flange, and the main body section can be located outside the opening, which not only reduces the obstruction to the flow of the medium in the current collector, but also enables the main body section of the connecting tube to provide sufficient heat exchange area.

[0018] In some embodiments, the main body segment abuts against a surface of the reinforcement member facing away from the current collector.

[0019] In the above technical solution, not only the plug-in size of the connecting pipe is limited, but also a connection such as welding can be formed between the main body section and the reinforcement to further improve the connection strength.

[0020] In some embodiments, a joint is provided at the inlet and / or outlet, the reinforcement is provided with a through hole opposite to the inlet and / or outlet, and the joint passes through the through hole and is connected to the inlet or outlet.

[0021] In the above technical solution, the joint is passed through the through hole and connected to the inlet or outlet, so that the reinforcement and the joint are matched. The reinforcement can strengthen the strength of the joint and the connection strength between the joint and the current collector, which is beneficial to improve the sealing of the connection between the joint and the current collector and reduce the risk of sealing failure.

[0022] In some embodiments, a first limiting protrusion is provided on the outer circumferential surface of the joint, and the first limiting protrusion is abutted against the side of the edge of the inlet or outlet facing away from the reinforcement; and / or, a second limiting protrusion is provided on the outer circumferential surface of the joint, and the second limiting protrusion is abutted against the side of the edge of the through hole facing away from the current collector.

[0023] In the above technical solution, the first limiting protrusion and the second limiting protrusion can limit the insertion size of the joint during assembly, realize joint positioning, and also improve the strength of the connection between the joint and the current collector, making the overall connection more reliable and the sealing and positioning more stable.

[0024] In some embodiments, the current collector has adjacent first and second side walls, and the reinforcement includes a first plate body and a second plate body, wherein the first side wall cooperates with the connecting tube and fits with the first plate body, and the second side wall cooperates with the joint and fits with the second plate body.

[0025] In the above technical solution, the connecting pipe and the joint are respectively connected to the two side walls adjacent to the current collector, and the pipe connection on the same side wall of the current collector is simpler, and structural interference is not likely to occur, and it is not likely to cause excessive impact on the strength of the current collector. The first plate body and the second plate body are respectively attached to the two side surfaces adjacent to the current collector, which has a better effect of improving the strength of the current collector, and the reinforcement is easier to assemble with the current collector.

[0026] In some embodiments, the reinforcement member is an integral member; or, the first plate body and the second plate body are separate members.

[0027] In the above technical solution, the overall structural strength of the integrated reinforcement is better, and thus the effect of improving the strength of the current collector is better. The split first plate body and the second plate body can be processed independently, and the first opening on the first plate body and the inlet and outlet on the second plate body can also be processed independently, and the processing accuracy does not affect each other, which is conducive to reducing the processing difficulty; and the alignment accuracy of the first opening and the second opening, and the alignment accuracy of the inlet or outlet and the through hole can be independently controlled, which is conducive to reducing the processing difficulty and assembly difficulty, and avoiding the problem that the first opening is aligned with the second opening due to processing errors, but the inlet and the through hole cannot be aligned.

[0028] In some embodiments, the reinforcement further includes a third plate body connected to an edge of the first plate body away from the second plate body, and the current collector has a third side wall opposite to the second side wall, and the third plate body is in contact with the third side wall.

[0029] In the above technical solution, the third plate body is connected to the first plate body to form an L-shaped structure. In the embodiment in which the first plate body is connected to the second plate body, the first plate body, the second plate body and the third plate body form a U-shaped structure, which further improves the overall strength of the reinforcement and further improves the effect of improving the strength of the collector.

[0030] In some embodiments, the reinforcement is disposed outside the current collector and is provided with a mounting flange extending away from the current collector, and the mounting flange is used for mounting the heat exchange component.

[0031] In the above technical solution, the installation flange not only improves the strength of the reinforcement, but also integrates the installation function into the reinforcement, reduces the number of parts on the heat exchanger, and makes the structure simpler.

[0032] In some embodiments, the current collector and / or the connecting tube are welded to the reinforcement member.

[0033] In the above technical solution, the welding connection not only has good reliability but also is easier to achieve sealing.

[0034] In some embodiments, the reinforcement comprises a substrate and a solder layer disposed on a surface of the substrate, and the current collector and / or the connecting tube are welded to the solder layer.

[0035] In the above technical solution, the substrate can be made of a material with a certain strength to achieve a good structural reinforcement effect, and the solder layer can achieve a good welding effect with the current collector and the connecting tube to improve the sealing effect.

[0036] In some embodiments, the current collector includes a first current collecting component, the first current collecting component is provided with an inlet and an outlet, the connecting tube is bent and extended and both ends of the connecting tube are connected to the first current collecting component, wherein one end of the connecting tube is connected to the inlet and the other end is connected to the outlet to form a liquid flow path.

[0037] In the above technical solution, both ends of the connecting pipe are connected to the first collecting component, so that the first collecting component integrates the functions of flow diversion and confluence, and the inlet and outlet are integrated, the number of collecting components is reduced, the structure of the collecting body is simplified, and it is convenient to centrally arrange the inlet and outlet connecting pipelines of the heat exchange component and the outside, making the structure more compact.

[0038] In some embodiments, the current collector includes a first current collecting component and a second current collecting component, two ends of the connecting tube are respectively connected to and communicate with the first current collecting component and the second current collecting component, and at least one of the first current collecting component and the second current collecting component is provided with a reinforcement.

[0039] In the above technical solution, the two ends of the connecting tube are respectively connected to the first current collector and the second current collector, which makes it easier to arrange the positions of the multiple connecting tubes, and the structure and extension path design of the connecting tubes are also more flexible and changeable.

[0040] In some embodiments, the inlet and the outlet are provided on the first current collecting component, and at least the first current collecting component is provided with a reinforcement member.

[0041] In the above technical solution, the inlet and outlet are integrated into the same first current collecting component, so that the heat exchanger and the external inlet and outlet liquid connection pipelines can be centrally arranged, and the structure is more compact. The first current collector is provided with a reinforcement member, which can improve the structural strength of the first current collector with more complex pipeline connections, thereby improving the connection reliability of the pipeline connection of the first current collector, for example, improving the connection reliability of the joint, and reducing the risk of sealing failure.

[0042] In some embodiments, the reinforcement member disposed on the first current collecting component and the reinforcement member disposed on the second current collecting component have the same or different structures.

[0043] In the above technical solution, reinforcements with the same structure can be formed as universal parts to reduce production costs; reinforcements with different structures can adopt targeted structural designs to better match the current collector.

[0044] In some embodiments, the multiple connecting tubes include a first connecting tube and a second connecting tube, the medium in the first connecting tube flows from the first flow collecting component to the second flow collecting component, the medium in the second connecting tube flows from the second flow collecting component to the first flow collecting component, the number of the first connecting tubes and the second connecting tubes is equal, and the second flow collecting component connects the first connecting tube and the second connecting tube in series to form two liquid flow paths.

[0045] In the above technical solution, the medium flow directions of the first connecting pipe and the second connecting pipe are opposite, one of them is the liquid inlet pipe and the other is the liquid outlet pipe; the number of the first connecting pipe and the second connecting pipe is equal, so that the liquid inlet and liquid outlet are balanced, the liquid in the heat exchange element flows smoothly, and the problem of excessive local pressure is not easy to occur.

[0046] In some embodiments, the first flow collecting component is provided with a socket, and the heat exchange component also includes a partition, which is inserted into the socket, and the partition extends into the first flow collecting component and divides the space inside the first flow collecting component into an inlet channel and an outlet channel, the inlet is connected to the inlet channel, and the outlet is connected to the outlet channel.

[0047] In the above technical solution, by setting the separator, the first current collecting component can be used for both liquid inlet and liquid outlet, and the liquid inlet and liquid outlet processes do not interfere with each other. In addition, the separator is inserted into the first current collecting component through the socket, which is convenient for assembly. The socket can also limit the separator in a fixed position, and the separator is not easy to move and affect the space separation effect. By separating with the separator, the first current collecting component does not have a separation function, the structure is simpler, and it is easy to process and form.

[0048] In some embodiments, the reinforcement member at least partially covers the socket.

[0049] In the above technical solution, the reinforcing member is enabled to shield the connection structure between the partition and the current collector at the insertion port, thereby reducing the risk of sealing failure at the connection.

[0050] In some embodiments, both ends of the current collector have channel openings, and the heat exchange component further includes a cover, which covers the channel openings.

[0051] In the above technical solution, both ends of the current collector have channel openings, which are sealed by covers, so that the current collector itself is generally formed into a through tubular structure, which is easier to shape.

[0052] In a second aspect, an embodiment of the utility model further provides a battery, comprising the above-mentioned heat exchange element.

[0053] In some embodiments, the battery further includes: a box assembly and a battery assembly, the box assembly includes an integrally stamped box body, the box body includes a bottom wall and a surrounding wall, the battery assembly is disposed in the box body, and the battery assembly includes a plurality of battery cells.

[0054] In the above technical solution, since the bottom wall and the surrounding wall of the box body are integrally stamped, the sealing effect can be ensured without considering the sealing problem at the connection between the bottom wall and the surrounding wall, thereby preventing muddy water from penetrating into the box body from the connection between the bottom wall and the surrounding wall to affect the battery assembly, thereby improving the reliability of the battery. Moreover, the integrally stamped box body does not need to be spliced, which can improve production efficiency.

[0055] In some embodiments, the battery includes a thermostat, which includes at least one of a first thermostat, a second thermostat and a third thermostat, and at least one of the first thermostat, the second thermostat and the third thermostat forms a heat exchanger, wherein the first thermostat is disposed outside the box body and is in contact with the outer wall of the box body; the second thermostat is disposed in the box assembly and is located between the battery assembly and the box assembly; the third thermostat is disposed in the box assembly and is located between two adjacent battery cells.

[0056] In the above technical solution, the battery cell can generate heat during operation, or the battery cell needs to be heated in a low temperature environment to keep the battery cell in an appropriate temperature range. By setting a thermostat, the temperature of the battery cell can be adjusted, the stability of the battery cell can be improved, and the battery life can be improved.

[0057] In a third aspect, an embodiment of the utility model further provides an electrical device including the above-mentioned battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 A schematic diagram of a vehicle provided in an embodiment of the present application;

[0059] Figure 2 An exploded view of a battery provided for some embodiments of the present application;

[0060] Figure 3 and Figure 4 Schematic diagrams of the structures of heat exchange components at different angles provided in some embodiments of the utility model;

[0061] Figure 5 An exploded view of a heat exchange component provided in some embodiments of the utility model;

[0062] Figure 6 for Figure 5 The middle circle shows the enlarged structural schematic diagram of A;

[0063] Figure 7 A partial cross-sectional view of a heat exchange member provided in some embodiments of the utility model;

[0064] Figure 8 A schematic diagram of the structure of a reinforcement member provided in some embodiments of the utility model;

[0065] Fig. 9 A cross-sectional view of a plate of a reinforcement member provided in some embodiments of the utility model;

[0066] Fig.10 A partial structural schematic diagram of a heat exchanger provided in some embodiments of the utility model;

[0067] Fig.11 for Fig.10 The middle circle shows the enlarged structural schematic diagram of B;

[0068] Fig.12 A schematic diagram of the structure of a separator provided in some embodiments of the utility model;

[0069] Fig.13 A cross-sectional view of a heat exchange member at a separator provided in some embodiments of the utility model;

[0070] Fig.14A schematic diagram of the structure of a heat exchange member provided in other embodiments of the utility model;

[0071] Fig.15 An exploded view of a heat exchange member provided in some other embodiments of the utility model;

[0072] Fig.16 A partial cross-sectional view of a battery provided in some embodiments of the utility model;

[0073] Fig.17 An exploded view of a portion of a battery provided in some embodiments of the present utility model;

[0074] Fig.18 An assembly diagram of the partial components of a battery provided in some embodiments of the present utility model.

[0075] Reference numerals:

[0076] Vehicle 1; battery 1000; controller 2000; motor 3000;

[0077] Battery assembly 200; battery cell 210; box assembly 300; box body 310; surrounding wall 312; box cover 320; expansion beam 330; bottom guard plate 340;

[0078] Heat exchange element 100; first temperature adjustment element 110; second temperature adjustment element 120; third temperature adjustment element 130;

[0079] Connecting pipe 10; main body section 11; connecting section 12; first connecting pipe 13; second connecting pipe 14;

[0080] Current collector 20; inlet 201; outlet 202; first opening 203; socket 204; channel opening 205; first side wall 21; second side wall 22; third side wall 23; first current collecting component 24; second current collecting component 25;

[0081] reinforcement member 30; second opening 301; through hole 302; first plate 31; second plate 32; third plate 33; connecting flange 34; mounting flange 35; substrate 36; solder layer 37;

[0082] Joint 40; second limiting protrusion 41;

[0083] Separator 50; Cover 60;

[0084] The first direction is X; the second direction is Y; the third direction is Z. DETAILED DESCRIPTION

[0085] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0086] Unless otherwise defined, all technical and scientific terms used in the present invention have the same meanings as those generally understood by technicians in the technical field of the present invention; the terms used in the present invention and in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0087] The reference to "embodiment" in the present invention means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0088] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", and "attachment" 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 a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0089] The term "and / or" in the present invention is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in the present invention generally indicates that the associated objects before and after are in an "or" relationship.

[0090] In the embodiments of the present invention, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present invention shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary and should not constitute any limitation on the present invention.

[0091] The term "plurality" used in the present invention refers to more than two (including two).

[0092] At present, from the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0093] It is understandable that the temperature environment inside the battery is affected by the external weather conditions. The battery cells in the battery need to be within a certain temperature range during operation. When the temperature inside the battery exceeds or falls below this range, the stability and performance of the battery will be greatly affected. For example, when the weather is hot, the battery cells need to be cooled and dissipated so that the temperature inside the battery is within the required temperature range. When the weather is cold, the battery cells need to be heated and heated so that the temperature inside the battery can still be within the required temperature range.

[0094] The heat exchange element can be used to circulate heat exchange medium and perform heat exchange with the components to be exchanged, such as batteries, so that the heat or cold of the heat exchange medium is transferred to the components to be exchanged, thereby realizing heat exchange with the components to be exchanged, heating or cooling the components to be exchanged, achieving temperature regulation, and placing the components to be exchanged in a more suitable temperature range.

[0095] The structural strength of the heat exchanger has a significant impact on its service life and the risk of airtight failure. For example, in the embodiment where the heat exchanger is used in a battery, weak structural strength of the heat exchanger will lead to insufficient pressure bearing capacity, and it is easy to cause structural deformation and damage, airtight failure, etc. due to external forces such as the weight of the battery assembly, the expansion force of the battery cell, and external impact force, thereby reducing the heat exchange capacity or causing leakage of the heat exchange medium. Therefore, how to improve the structural strength of the heat exchanger has become the research and development focus in this field.

[0096] In some related technologies, the strength is improved by increasing the thickness of the plate material of the heat exchanger, which makes the processing of structures such as holes on the heat exchanger more difficult and limits the processing of small-sized structures such as holes, thereby increasing the processing cost.

[0097] Based on this, the present application proposes a heat exchange component, including: a plurality of connecting tubes, a current collector and a reinforcement member. The plurality of connecting tubes are arranged at intervals. The current collector has an inlet and an outlet, the inlet is used to input a medium, and the outlet is used to output a medium. The current collector is connected and communicated with each connecting tube, and the current collector and the plurality of connecting tubes together form a plurality of liquid flow paths arranged in parallel, and each liquid flow path is from the inlet to the outlet. The reinforcement member is arranged on the current collector, and the reinforcement member is configured to strengthen the strength of the current collector.

[0098] In the heat exchanger of the above-mentioned structure, by providing a reinforcing member that can strengthen the strength of the current collector, the current collector is less likely to deform, collapse, etc. during assembly and use, thereby reducing the risk of airtight failure and improving the overall structural strength and service life of the heat exchanger.

[0099] The heat exchanger disclosed in the embodiment of the present application can be used in an electrical device that uses a battery as a power source or various energy storage systems that use a battery as an energy storage element. The electrical device can be, but is not limited to, a mobile phone, a tablet, a laptop, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, and the like. Among them, the electric toy can include a fixed or mobile electric toy, for example, a game console, an electric car toy, an electric ship toy, and an electric airplane toy, and the like, and the spacecraft can include an airplane, a rocket, a space shuttle, and a spacecraft, and the like.

[0100] For the convenience of description, the following embodiments are described by taking a vehicle 1 as an example of an electrical device in an embodiment of the present application.

[0101] Reference Figure 1 , Figure 1 A schematic diagram of a vehicle 1 provided for some embodiments of the present application. Vehicle 1 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 1000 is provided inside the vehicle 1, and the battery 1000 may be provided at the bottom, head or tail of the vehicle 1. The battery 1000 may be used to power the vehicle 1, for example, the battery 1000 may be used as an operating power source for the vehicle 1. The vehicle 1 may also include a controller 2000 and a motor 3000, and the controller 2000 is used to control the battery 1000 to power the motor 3000, for example, for the starting, navigation and working power requirements of the vehicle 1 during driving.

[0102] In some embodiments of the present application, the battery 1000 can not only serve as an operating power source for the vehicle 1 , but also serve as a driving power source for the vehicle 1 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1 .

[0103] Reference Figure 2 , Figure 2This is an exploded view of a battery 1000 according to some embodiments of the present application. The battery 1000 includes a case assembly 300, a battery cell 210 and a heat exchange element 100. The case assembly 300 has a receiving cavity. The battery cell 210 is received in the receiving cavity of the case assembly 300. The heat exchange element 100 may be disposed between the battery cell 210 and the case assembly 300, or between adjacent battery cells 210.

[0104] Among them, the box assembly 300 is used to provide a storage space for the battery cell 210, and the box assembly 300 can adopt a variety of structures. In some embodiments, the box assembly 300 may include a first part (such as the box body 310 described below) and a second part (such as the box cover 320 described below), the first part and the second part cover each other, and the first part and the second part jointly define a storage space for accommodating the battery cell 210. The second part can be a hollow structure with one end open, and the first part can be a plate-like structure, and the first part covers the open side of the second part, so that the first part and the second part jointly define a storage space; the first part and the second part can also be hollow structures with one side open, and the open side of the first part covers the open side of the second part. Of course, the box assembly 300 formed by the first part and the second part can be a variety of shapes, such as a cylinder, a cuboid, etc. Optionally, in some embodiments, the box assembly 300 also includes a bottom guard plate 340, which is arranged on the lower side of the box body 310 to further enhance the bearing strength and impact resistance of the bottom of the box body 310. The bottom guard plate 340 may be made of a variety of materials, including but not limited to: copper, iron, aluminum, stainless steel, aluminum alloy, etc.

[0105] In the battery 1000, there may be multiple battery cells 210, and the multiple battery cells 210 may be connected in series, in parallel, or in a mixed connection. A mixed connection means that the multiple battery cells 210 are both connected in series and in parallel. The multiple battery cells 210 may be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the multiple battery cells 210 is accommodated in the box assembly 300; of course, the battery 1000 may also be a battery module formed by connecting multiple battery cells 210 in series, in parallel, or in a mixed connection, and then the multiple battery modules are connected in series, in parallel, or in a mixed connection to form a whole, and accommodated in the box assembly 300. The battery 1000 may also include other structures, for example, the battery 1000 may also include a busbar component for realizing electrical connection between the multiple battery cells 210.

[0106] Each battery cell 210 may be a secondary battery or a primary battery, or a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 210 may be cylindrical, flat, rectangular, or in other shapes.

[0107] In the battery 1000, the heat exchanger 100 may be disposed between the multiple battery cells 210 and the top wall of the box assembly 300, or between the multiple battery cells 210 and the bottom wall of the box assembly 300, or between the bottom wall of the box assembly 300 and the bottom guard plate 340, or between two adjacent battery cells 210, to provide heat exchange for the multiple battery cells 210. In some embodiments, the heat exchanger 100 may include a connecting tube 10 and a current collector 20, wherein the connecting tube 10 is connected to the current collector 20, and the connecting tube 10 may be a flat tube, a round tube, a harmonica tube, or a tube of other shapes, and the current collector 20 may be a rectangular tube or a round tube, etc.

[0108] Hereinafter, a heat exchange element 100 according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0109] Please refer to Figure 3-Figure 6 , Figure 3 and Figure 4 Schematic diagrams of the structure of the heat exchange element 100 at different angles provided in some embodiments of the present utility model; Figure 5 An exploded view of a heat exchange element 100 provided in some embodiments of the present utility model; Figure 6 for Figure 5 The middle circle shows an enlarged structural schematic diagram of A. The heat exchange element 100 includes: a plurality of connecting tubes 10, a current collector 20 and a reinforcement element 30.

[0110] Specifically, a plurality of connecting tubes 10 are arranged at intervals. The current collector 20 has an inlet 201 and an outlet 202, the inlet 201 is used to input a medium, and the outlet 202 is used to output a medium. The current collector 20 is connected and communicated with each connecting tube 10, and the current collector 20 and the plurality of connecting tubes 10 together form a plurality of liquid flow paths arranged in parallel, each of which is from the inlet 201 to the outlet 202. The reinforcement 30 is disposed on the current collector 20, and is configured to strengthen the strength of the current collector 20.

[0111] The connecting pipe 10 is a pipe structure that can allow the medium to flow and define the medium flow path, such as a circular pipe, a rectangular pipe, an elliptical pipe, a harmonica pipe, etc. The connecting pipe 10 can extend along one or a combination of shapes such as a straight line and an arc. The material of the connecting pipe 10 can be a material with excellent thermal conductivity, such as a metal material, specifically aluminum, copper, etc. For example, the connecting pipe 10 can be an aluminum pipe.

[0112] Multiple connecting tubes 10 are arranged at intervals, which means that the channels in the connecting tubes 10 are not directly connected, but are all connected to the current collector 20. The connecting tubes 10 may form a certain gap in space, or may contact each other, which is within the protection scope of the present invention.

[0113] The current collector 20 can define a channel for the medium to flow, and realize the medium flow between the heat exchange element 100 and the outside through the inlet 201 and the outlet 202. The current collector 20 can include a tube structure, such as a circular tube, a rectangular tube, an elliptical tube, etc. The material of the current collector 20 can be a material with excellent thermal conductivity or a material with high structural strength, such as a metal material, specifically aluminum, stainless steel, etc.

[0114] The current collector 20 is connected and communicated with each connecting tube 10. The current collector 20 and the multiple connecting tubes 10 together form multiple liquid flow paths arranged in parallel, and each liquid flow path is from the inlet 201 to the outlet 202. Each liquid flow path can flow from the inlet 201 through one connecting tube 10 to the outlet 202, or from the inlet 201 through at least two connecting tubes 10 in sequence to the outlet 202. The current collector 20 can divert the medium flowing into the inlet 201 to multiple liquid flow paths, and realize the convergence of the media in the multiple liquid flow paths, making it easier to connect the heat exchange element 100 with the external pipeline.

[0115] In the present application, the molding process of the connecting tube 10 and the current collector 20 is not limited, for example, they can be extruded through an extrusion process, or they can be formed by bending a sheet metal and fixed by welding, etc.

[0116] The reinforcement member 30 may be made of a material with a certain strength, such as stainless steel, composite materials, multilayer materials, etc. The structure of the reinforcement member 30 may be flexibly set according to actual conditions. For example, the reinforcement member 30 may include a plate body attached to the current collector 20, and the thickness of the entire plate is increased by attaching to improve the structural strength; for example, the reinforcement member 30 may include a supporting structure disposed in the current collector 20 and supporting the walls on both sides of the current collector 20, and the structural strength is improved by supporting; etc.

[0117] The location of the reinforcement member 30 can be flexibly set according to actual conditions. For example, the reinforcement member 30 can be set inside the current collector 20; or the reinforcement member 30 can be set outside the current collector 20 to facilitate the assembly of the reinforcement member 30 and the current collector 20, and to facilitate the connection of the reinforcement member 30 and the connecting tube 10. The reinforcement member 30 and the current collector 20 can be connected by welding, screwing, etc.

[0118] Compared with the connecting tube 10, the current collector 20, which plays the role of current collection, has a stronger pressure, a more complicated pipeline connection, and a higher strength requirement. The strength of the current collector 20 can be strengthened by the reinforcing member 30, so that the overall structural strength of the heat exchanger 100 is enhanced, and the current collector 20 is not easy to deform, collapse or rupture during use, so that the connection between the current collector 20 and the connecting tube 10 is not easy to fail, thereby improving the service life of the heat exchanger 100.

[0119] According to the heat exchange component 100 of the embodiment of the utility model, by providing a reinforcement component 30 capable of strengthening the strength of the current collector 20, the current collector 20 is less likely to deform, collapse, and other problems during assembly and use, thereby reducing the risk of airtight failure and improving the overall structural strength and service life of the heat exchange component 100.

[0120] In some embodiments, please refer to Figure 7 , Figure 7 A partial cross-sectional view of a heat exchanger 100 provided in some embodiments of the utility model. The current collector 20 and the connecting tube 10 are both connected to the reinforcement 30. The current collector 20 is connected to the reinforcement 30 so that the reinforcement 30 can strengthen the strength of the current collector 20. The connection between the connecting tube 10 and the reinforcement 30 can strengthen the structural strength of the connecting tube 10. Moreover, compared with the current collector 20, the structural design of the reinforcement 30 is more flexible, so it is easier to achieve connection with the connecting tube 10, improve the connection reliability and sealing, so the reinforcement 30 connects the connecting tube 10 and the current collector 20, which is conducive to reducing the risk of connection seal failure of the connecting tube 10.

[0121] The connection method between the connecting tube 10 and the reinforcement 30 includes but is not limited to welding, screw connection, etc. For example, in some embodiments, at least one of the current collector 20 and the connecting tube 10 is welded to the reinforcement 30. The welding connection not only has good reliability, but also is easier to achieve sealing. Among them, in the embodiment where the current collector 20 and the connecting tube 10 are respectively welded to the reinforcement 30, the connecting tube 10 and the current collector 20 are not directly welded, which is more conducive to reducing the restrictions on the thickness, material and structure of the plate of the current collector 20, and is conducive to reducing the molding cost.

[0122] In some specific embodiments, Fig. 9 The figure shows a cross-sectional view of a plate of a reinforcement member 30 provided in some embodiments of the present invention. The reinforcement member 30 includes a substrate 36 and a solder layer 37 disposed on the surface of the substrate 36 . At least one of the current collector 20 and the connecting tube 10 is welded to the solder layer 37 .

[0123] The substrate 36 can be made of a material with a certain strength, such as stainless steel, aluminum, etc.; the solder layer 37 refers to a material layer with a melting point lower than that of the substrate 36, so that the substrate 36 is not easily melted and deformed during welding. In some specific embodiments, the substrate 36 is made of a three-series aluminum alloy with a melting point of about 610°C, and the solder layer 37 is made of a four-series aluminum alloy with a melting point of about 580°C. The connecting pipe 10 is brazed to the reinforcement 30. During the brazing process, the solder layer 37 melts and connects to the connecting pipe 10, and the shape of the substrate 36 remains unchanged, which plays a good reinforcement role.

[0124] According to some embodiments of the present invention, Figure 3-Figure 4 and Figure 7As shown, the reinforcement member 30 is disposed outside the current collector 20 , and at least a portion of the reinforcement member 30 is in contact with the outer surface of the current collector 20 .

[0125] The reinforcement 30 is arranged outside the current collector 20, which facilitates the assembly of the reinforcement 30 and the current collector 20 and is not affected by the internal space size of the current collector 20; and by at least part of the reinforcement 30 being bonded to the outer surface of the current collector 20, the overall thickness of the bonding area can be increased, thereby effectively improving the strength.

[0126] In some specific embodiments, the reinforcement member 30 is formed into a non-enclosed structure in the circumferential direction of the current collector 20, that is, a tubular structure is not formed, so as to facilitate the assembly of the current collector 20 and the reinforcement member 30. For example, the reinforcement member 30 can be attached to one side surface of the current collector 20, and the reinforcement member 30 is generally formed into a straight-line structure; or the reinforcement member 30 can be attached to both sides of the current collector 20, and the reinforcement member 30 is generally formed into an L-shaped structure; or the reinforcement member 30 can be attached to three sides of the current collector 20, and the reinforcement member 30 is generally formed into a U-shaped structure, which can reduce the difficulty of assembling the current collector 20 and the reinforcement member 30.

[0127] According to some embodiments of the present invention, Figure 6-Figure 8 As shown, the current collector 20 is provided with a first opening 203, the reinforcement member 30 is provided with a second opening 301 opposite to the first opening 203, and the periphery of the second opening 301 is provided with a connecting flange 34. The connecting tube 10 is inserted through the first opening 203 and the second opening 301, and the connecting tube 10 is connected to the inner peripheral surface of the connecting flange 34.

[0128] The first opening 203 and the second opening 301 can be formed by a process such as stamping. The shapes of the first opening 203 and the second opening 301 can be the same or different, as long as the connecting pipe 10 can pass through. The connecting flange 34 can be formed on the reinforcing member 30 by integral stamping, welding, etc. By providing the connecting flange 34, the contact area between the reinforcing member 30 and the connecting pipe 10, such as the welding area, can be increased, thereby improving the connection reliability and sealing reliability.

[0129] In some embodiments, Figure 7 As shown, the connecting flange 34 is disposed in the first opening 203. For example, if the reinforcing member 30 is disposed outside the current collector 20, the connecting flange 34 can be disposed inwardly in the first opening 203; if the reinforcing member 30 is disposed outside the current collector 20, the connecting flange 34 can be disposed outwardly in the first opening 203.

[0130] The connecting flange 34 passing through the first opening 203 can reduce the occupied space in the thickness direction of the plate and improve the strength reinforcing effect of the reinforcing member 30 on the collector 20, especially the strength near the first opening 203; and the connecting flange 34 can separate the wall surface of the first opening 203 from the connecting tube 10, and it is not easy to form a weak sealing area.

[0131] The connecting flange 34 and the wall surface of the first opening 203 may be in contact or spaced apart. Figure 7 As shown, the outer peripheral surface of the connecting flange 34 is in contact with the wall surface of the first opening 203 formed by the reinforcing member 30. The connecting flange 34 has a better effect of improving the strength of the wall surface near the first opening 203, and facilitates the connection between the connecting flange 34 and the wall surface forming the first opening 203, such as welding, to further improve the sealing effect.

[0132] In some embodiments of the present invention, Figure 7 As shown, the connecting pipe 10 includes a main body section 11 and a connecting section 12 connected to each other. Figure 7 In the third direction Z or the second direction Y), the size of the connecting section 12 is smaller than that of the main section 11. The connecting section 12 is disposed through the first opening 203 and the second opening 301, and the outer peripheral surface of the connecting section 12 is connected to the inner peripheral surface of the connecting flange 34.

[0133] A step surface is formed at the connection of the connected main body section 11 and the connecting section 12, that is, a part of the end surface of the main body section 11 facing the connecting section 12 is connected to the connecting section 12 and the other part is formed as a step surface. The step surface can limit the limit size of the connecting tube 10 inserted into the first opening 203 and the second opening 301, so that the connecting section 12 can be inserted into the first opening and the second opening 301 and connected to the connecting flange 34, and the main body section 11 can be located outside the opening, which not only reduces the obstruction to the flow of the medium in the current collector 20, but also enables the main body section 11 of the connecting tube 10 to provide a sufficient heat exchange area.

[0134] For example, the main body section 11 may abut against the surface of the reinforcement member 30 facing away from the current collector 20 , which not only limits the insertion size of the connecting tube 10 , but also forms a connection such as welding between the main body section 11 and the reinforcement member 30 to further improve the connection strength.

[0135] According to some embodiments of the present invention, Figure 3-Figure 7 As shown, at least one of the inlet 201 and the outlet 202 is provided with a joint 40 , the reinforcement 30 is provided with a through hole 302 opposite to at least one of the inlet 201 and the outlet 202 , and the joint 40 is passed through the through hole 302 and communicated with the inlet 201 or the outlet 202 .

[0136] The connector 40 may be a round tube, a square tube, a threaded tube, etc. The material of the connector 40 includes, but is not limited to, aluminum alloy, stainless steel, and other materials with a certain hardness. The molding method of the connector 40 includes, but is not limited to, extrusion molding, stamping molding, etc. The connector 40 may be used to connect the heat exchanger 100 to the outside. For example, in the thermal management system of the vehicle 1, the connector 40 may connect the heat exchanger 100 to other pipelines of the thermal management system.

[0137] The joint 40 provided at the inlet 201 is provided through the corresponding through hole 302 and communicates with the inlet 201; the joint 40 provided at the outlet 202 is provided through the corresponding through hole 302 and communicates with the outlet 202. For example, the joint 40 may be provided through the through hole 302 and the inlet 201; for another example, the joint 40 may be provided through the through hole 302, and the end face of the joint 40 is connected to the surface of the side wall of the current collector 20 forming the inlet 201, which are all within the protection scope of the present invention.

[0138] The joint 40 is passed through the through hole 302 and connected to the inlet 201 or the outlet 202, so that the reinforcement 30 and the joint 40 are matched. The reinforcement 30 can strengthen the strength of the joint 40 and the connection strength between the joint 40 and the current collector 20, which is beneficial to improve the sealing of the connection between the joint 40 and the current collector 20 and reduce the risk of sealing failure.

[0139] In some embodiments, the outer peripheral surface of the joint 40 is provided with a first limiting protrusion, and the first limiting protrusion abuts against the edge of the inlet 201 or the outlet 202 on the side facing away from the reinforcement member 30. Specifically, the first limiting protrusion of the joint 40 provided at the inlet 201 abuts against the edge of the inlet 201, and the first limiting protrusion of the joint 40 provided at the outlet 202 abuts against the edge of the outlet 202. On the one hand, the first limiting protrusion can limit the size of the joint 40 inserted into the corresponding inlet 201 or outlet 202 to achieve the positioning of the joint 40, and on the other hand, the first limiting protrusion can also improve the strength of the joint 40 and the current collector 20.

[0140] In some embodiments, Figure 7 As shown, the outer peripheral surface of the joint 40 is provided with a second limiting protrusion 41, and the second limiting protrusion 41 abuts against the side of the edge of the through hole 302 facing away from the current collector 20. The second limiting protrusion 41 can limit the size of the joint 40 inserted into the corresponding through hole 302, realize the positioning of the joint 40, and is conducive to improving the strength of the joint 40 and the reinforcement 30.

[0141] In addition, in the embodiment where the reinforcement member 30 is disposed outside the current collector 20, as shown in FIG. Figure 7As shown, the first limiting protrusion limits the insertion size of the connector 40 during assembly, and the second limiting protrusion 41 prevents the connector 40 from being pulled out and separated from the current collector 20 and the reinforcement 30. The first limiting protrusion and the second limiting protrusion 41 cooperate to achieve two-way limiting in the plug-in direction of the connector 40, making the overall connection more reliable and the sealing and positioning more stable.

[0142] The first and second limiting convex portions 41 may be formed into a step structure or a convex structure by cutting, stamping, riveting or other processes, and this application does not impose any special restrictions on this. Figure 7 In the example shown, the first limiting protrusion is a flared flange formed by radially outward deformation of the end of the joint 40, and the second limiting protrusion 41 is a step structure formed by cutting the outer peripheral surface of the joint 40. The processing method is simple, which is conducive to reducing production costs.

[0143] According to some embodiments of the present invention, Figure 6-Figure 8 As shown, the current collector 20 has adjacent first sidewalls 21 and second sidewalls 22, and the reinforcement 30 includes a first plate body 31 and a second plate body 32. The first sidewall 21 cooperates with the connecting tube 10 and fits with the first plate body 31, and the second sidewall 22 cooperates with the connector 40 and fits with the second plate body 32.

[0144] For example, the first side wall 21 is provided with a first opening 203, the first plate body 31 is provided with a second opening 301, the first plate body 31 is attached to the inner side or outer side of the first side wall 21, and the connecting pipe 10 is passed through the first opening 203 and the second opening 301; the second side wall 22 is provided with an inlet 201 or an outlet 202, the second plate body 32 is provided with a through hole 302, the second plate body 32 is attached to the inner side or outer side of the second side wall 22, and the joint 40 is passed through the through hole 302 and the corresponding inlet 201 or outlet 202.

[0145] The connecting pipe 10 and the joint 40 are respectively connected to the two adjacent side walls of the current collector 20. The pipeline connection on the same side wall of the current collector 20 is simpler, and it is not easy to cause structural interference and it is not easy to cause too much impact on the strength of the current collector 20. The first plate body 31 and the second plate body 32 are respectively attached to the two adjacent side surfaces of the current collector 20, which has a better effect of improving the strength of the current collector 20, and the reinforcing member 30 and the current collector 20 are easier to assemble.

[0146] In some embodiments, Figure 6-Figure 8 As shown, the reinforcement member 30 is an integral member. For example, the first plate 31 and the second plate 32 are integrally formed into an L-shape. In an embodiment where the reinforcement member 30 also includes other structures, the other structures can be integrally formed with the first plate 31 and the second plate 32. The overall structural strength of the reinforcement member 30 is better, thereby improving the strength of the current collector 20.

[0147] In other embodiments, please refer to Fig.14 and Fig.15 , Fig.14 A schematic diagram of the structure of a heat exchange element 100 provided in other embodiments of the present utility model; Fig.15 Exploded diagram of the heat exchanger 100 provided for other embodiments of the utility model. The first plate body 31 and the second plate body 32 are separate parts. The first plate body 31 and the second plate body 32 can be processed independently, and the first opening 203 on the first plate body 31 and the inlet 201 and the outlet 202 on the second plate body 32 can also be processed independently, and the processing accuracy does not affect each other, which is conducive to reducing the processing difficulty. In addition, the alignment accuracy of the first opening 203 and the second opening 301, and the alignment accuracy of the inlet 201 or the outlet 202 and the through hole 302 can be independently controlled, which is conducive to reducing the processing difficulty and the assembly difficulty, and avoiding the problem that the first opening 203 is aligned with the second opening 301, and the inlet 201 and the through hole 302 cannot be aligned due to processing errors.

[0148] In some embodiments of the present invention, Figure 7-Figure 8 , Fig.14 and Fig.15 As shown, the reinforcement 30 further includes a third plate 33 , which is connected to the edge of the first plate 31 away from the second plate 32 , and the current collector 20 has a third side wall 23 opposite to the second side wall 22 , and the third plate 33 is in contact with the third side wall 23 .

[0149] The sidewall of the current collector 20 may be as follows: Figure 7 Four are shown, and there may be five, six or more, wherein three adjacent side walls are formed into a first side wall 21, a second side wall 22 and a third side wall 23. The third plate 33 is fitted with the third side wall 23 to increase the matching area between the current collector 20 and the reinforcement 30, thereby improving the connection reliability and overall strength.

[0150] In addition, the third plate body 33 is connected to the first plate body 31 to form an L-shaped structure. In the embodiment in which the first plate body 31 is connected to the second plate body 32, the first plate body 31, the second plate body 32 and the third plate body 33 form a U-shaped structure, which further improves the overall strength of the reinforcement 30, and the effect of improving the strength of the collector 20 is further improved.

[0151] According to some embodiments of the present invention, Figure 3-Figure 5 As shown, the reinforcement member 30 is disposed outside the current collector 20 and is provided with a mounting flange 35 extending away from the current collector 20 . The mounting flange 35 is used for mounting the heat exchange element 100 .

[0152] For example Figure 5As shown, the mounting flange 35 is provided on the second plate 32 of the reinforcement 30, and extends upward relative to the second plate 32 to extend away from the current collector 20. The mounting flange 35 is used for mounting the heat exchange element 100, that is, the heat exchange element 100 can be mounted in the applied equipment through the mounting flange 35. For example, in the embodiment where the heat exchange element 100 is used in the battery 1000, the mounting flange 35 can be connected to other structures of the battery 1000 by fasteners, welding, etc. Specifically, the mounting flange 35 can be connected to the side beam of the box assembly 300 of the battery 1000 or the partition beam in the box assembly 300.

[0153] The installation flange 35 not only improves the strength of the reinforcement member 30, but also integrates the installation function into the reinforcement member 30, reduces the number of parts on the heat exchanger 100, and makes the structure simpler.

[0154] In some embodiments of the present invention, the current collector 20 includes a first current collecting component 24, and the first current collecting component 24 is provided with an inlet 201 and an outlet 202. The connecting tube 10 is bent and extended, and both ends of the connecting tube 10 are connected to the first current collecting component 24. One end of the connecting tube 10 is connected to the inlet 201 and the other end of the connecting tube 10 is connected to the outlet 202 to form a liquid flow path.

[0155] The connecting tube 10 may be a U-shaped tube, a serpentine tube, a loop-shaped tube or a tube extending along any other path, and the starting end and the end of the extending path of the connecting tube 10 form the two ends of the connecting tube 10 .

[0156] Both ends of the connecting pipe 10 are connected to the first collecting component 24, so that the first collecting component 24 integrates the functions of flow diversion and converging, and the inlet 201 and the outlet 202 are integrated, which reduces the number of collecting components, simplifies the structure of the collector 20, and facilitates the centralized arrangement of the heat exchange component 100 and the external inlet and outlet liquid connecting pipelines, making the structure more compact.

[0157] In other embodiments of the present invention, Figure 3-Figure 5 As shown, the current collector 20 includes a first current collecting component 24 and a second current collecting component 25. The two ends of the connecting pipe 10 are connected and communicated with the first current collecting component 24 and the second current collecting component 25 respectively, and at least one of the first current collecting component 24 and the second current collecting component 25 is provided with a reinforcement 30.

[0158] The connecting tube 10 can be a straight tube, or a U-shaped tube, a serpentine tube, a loop tube or a tube extending along any other path. The starting end and the end of the extending path of the connecting tube 10 form the two ends of the connecting tube 10 .

[0159] The two ends of the connecting tube 10 are respectively connected to the first current collector 20 and the second current collector 20, which makes it easier to arrange the positions of the multiple connecting tubes 10. The structure and extension path design of the connecting tube 10 are also more flexible and changeable. For example, multiple straight tubes can be connected in series and in parallel. Multiple connecting tubes 10 can be connected in parallel, or some of the connecting tubes 10 can be connected in series to form a liquid flow path and then connected in parallel with other liquid flow paths.

[0160] At least one of the first current collector 20 and the second current collector 20 is provided with a reinforcement 30, so as to improve the structural strength of the current collector 20; and in the embodiment where both the first current collector 20 and the second current collector 20 are provided with a reinforcement 30, the overall strength of the current collector 20 is higher.

[0161] In some embodiments, the inlet 201 and the outlet 202 can be respectively arranged in the first collecting component 24 and the second collecting component 25, so that the liquid in the multiple connecting tubes 10 flows in the same direction. The structure of the first collecting component 24 and the second collecting component 25 is simpler and no liquid reversal is required.

[0162] In other embodiments, Figure 3-Figure 6 As shown, the inlet 201 and the outlet 202 are provided in the first flow collecting component 24, and at least the first flow collecting component 24 is provided with a reinforcing member 30. Therefore, as shown by the arrow in the figure, after the medium flows into the first flow collecting component 24 from the inlet 201, it flows to the second flow collecting component 25 through a part of the connecting pipe 10, and flows along the second flow collecting component 25 to another part of the connecting pipe 10 to achieve reversal, and then flows back to the first flow collecting component 24 through another part of the connecting pipe 10, so as to flow out through the outlet 202 of the first flow collecting component 24.

[0163] The inlet 201 and the outlet 202 are integrated into the same first current collecting component 24, so that the heat exchanger 100 and the external inlet and outlet liquid connection pipelines can be centrally arranged, and the structure is more compact. The first current collector 20 is provided with a reinforcing member 30, which can improve the structural strength of the first current collector 20 with more complex pipeline connections, thereby improving the connection reliability of the pipeline connection of the first current collector 20, for example, improving the connection reliability at the joint 40, and reducing the risk of sealing failure.

[0164] The structures of the reinforcement member 30 provided on the first current collecting component 24 and the reinforcement member 30 provided on the second current collecting component 25 may be the same or different. The reinforcement members 30 of the same structure may be formed as a common member to reduce production costs; the reinforcement members 30 of different structures may adopt targeted structural designs to better match the current collector 20.

[0165] For example, Figure 3-Figure 5As shown, the mounting flange 35 may be provided only on the reinforcement 30 connected to the first current collecting component 24, or may be provided on two reinforcements 30; for example, in an embodiment in which the inlet 201 and the outlet 202 are integrated in the first current collecting component 24, the through hole 302 may be provided only on the reinforcement 30 of the first current collecting component 24; in an embodiment in which the inlet 201 and the outlet 202 are respectively provided in the first current collecting component 24 and the second current collecting component 25, the reinforcements 30 of the first current collecting component 24 and the second current collecting component 25 may both be provided with the through hole 302.

[0166] In some embodiments, the reinforcement member 30 includes a first plate body 31, a second plate body 32, and a third plate body 33 respectively attached to three adjacent side surfaces of the current collector 20, such as Figure 6-Figure 8 As shown, the second plate 32 and the third plate 33 are respectively located on both sides of the first plate 31, and the first plate 31 is connected to the connecting pipe 10. The second plate 32 of the reinforcement member 30 provided on the first current collecting component 24 is provided with two through holes 302, and the inlet 201 and the outlet 202 are respectively opposite to the two through holes 302.

[0167] According to some embodiments of the present invention, Figure 3 As shown, the plurality of connecting tubes 10 include a first connecting tube 13 and a second connecting tube 14. The medium in the first connecting tube 13 flows from the first flow collecting component 24 to the second flow collecting component 25, and the medium in the second connecting tube 14 flows from the second flow collecting component 25 to the first flow collecting component 24. The number of the first connecting tubes 13 and the second connecting tubes 14 is equal, and the second flow collecting component 25 connects the first connecting tubes 13 and the second connecting tubes 14 in series to form two liquid flow paths.

[0168] The medium flow directions of the first connecting tube 13 and the second connecting tube 14 are opposite, one of which is a liquid inlet tube and the other is a liquid outlet tube; the number of the first connecting tube 13 and the second connecting tube 14 is equal, so that the liquid inlet and liquid outlet are balanced, the liquid in the heat exchanger 100 flows smoothly, and the problem of excessive local pressure is not easy to occur. Figure 3 As shown, the heat exchange element 100 includes four connecting tubes 10, two of which are first connecting tubes 13, and the other two are second connecting tubes 14. The second collecting component 25 realizes the switching between the first connecting tubes 13 and the second connecting tubes 14; of course, the number of the first connecting tubes 13 and the second connecting tubes 14 can also be three, four or more to form more liquid flow paths and provide a larger heat exchange area and heat exchange capacity.

[0169] In some embodiments, the first flow collecting component 24 integrates the inlet 201 and the outlet 202, such as Figure 6 , Figure 10-13 As shown, Fig.10 A partial structural schematic diagram of a heat exchange element 100 provided in some embodiments of the utility model; Fig.11 for Fig.10 The middle circle shows the enlarged structural schematic diagram of B; Fig.12 A schematic diagram of the structure of a separator 50 provided in some embodiments of the utility model; Fig.13 The heat exchanger 100 provided in some embodiments of the present invention is a cross-sectional view at the separator 50. The first flow collecting component 24 is provided with a socket 204, and the heat exchanger 100 further includes a separator 50. The separator 50 is inserted into the socket 204, and the separator 50 extends into the first flow collecting component 24 and divides the space in the first flow collecting component 24 into an inlet channel and an outlet channel, the inlet 201 is connected to the inlet channel, and the outlet 202 is connected to the outlet channel.

[0170] By providing the separator 50, the first current collecting component 24 can be used for both liquid inlet and liquid outlet, and the liquid inlet and liquid outlet processes do not interfere with each other. In addition, the separator 50 is inserted into the first current collecting component 24 through the socket 204, which is convenient for assembly. The socket 204 can also limit the separator 50 in a fixed position, and the separator 50 is not easy to move and affect the space separation effect. By separating with the separator 50, the first current collecting component 24 does not have a separation function, and the structure is simpler and easy to process and form.

[0171] In some specific embodiments, Figure 11-13 As shown, the socket 204 penetrates the first side wall 21 along the first direction X, and is formed on part of the second side wall 22 and the third side wall 23 along the first direction X. The separator 50 is formed with two step surfaces, the periphery of the separator 50 is located in the socket 204, and the two step surfaces are respectively against the inner wall surfaces of the socket 204 on the second side wall 22 and the third side wall 23, so as to achieve the size limit of the separator 50 inserted into the socket 204. And the separator 50 can adopt a structure in which the surfaces of both sides of the substrate 36 are covered with the solder layer 37, so that the solder layers 37 on both sides can be contacted and welded with the inner wall surfaces on both sides of the socket 204 opposite to each other to achieve sealing.

[0172] In some embodiments, Fig.13 As shown, the reinforcing member 30 at least partially covers the socket 204. The reinforcing member 30 can cover the connection structure between the separator 50 and the current collector 20 at the socket 204, reducing the risk of sealing failure at the connection. For example, it is not easy to set the solder layer 37 at the step surface of the separator 50, resulting in a weak seal. By covering the matching part of the step surface and the inner wall surface of the socket 204 with the reinforcing member 30, the risk of sealing failure at this place can be reduced.

[0173] According to some embodiments of the present invention, Figure 3-Figure 6 As shown, both ends of the current collector 20 have channel openings 205 , and the heat exchange element 100 further includes a cover 60 , which covers the channel openings 205 .

[0174] The cover 60 can be made of a high temperature resistant non-metal material, or can be made of aluminum alloy, copper, stainless steel, etc. The cover 60 and the current collector 20 can be sealed by a seal, welding seal, etc. to reduce the risk of medium leakage. In addition, the cover 60 can be a cover body that is arranged at the end of the current collector 20, and the cover 60 can at least partially extend into the channel opening 205, and it only needs to be able to cover the channel opening 205.

[0175] The current collector 20 has channel openings 205 at both ends, and the channel openings 205 are sealed by the cover 60, so that the current collector 20 itself is generally formed into a through tubular structure, which is easier to shape.

[0176] like Figure 2 As shown, the battery 1000 according to the embodiment of the present application includes the heat exchange element 100 according to the embodiment of the present application. Therefore, by adopting the above-mentioned heat exchange element 100, the temperature control performance of the battery 1000 can be improved.

[0177] In some embodiments, Figure 2 and Fig.16 As shown, the battery 1000 also includes: a box assembly 300 and a battery assembly 200. The box assembly 300 includes a box body 310 that is integrally stamped and formed, and the box body 310 includes a bottom wall 311 and a surrounding wall 312. The battery assembly 200 is arranged in the box body 310, and the battery assembly 200 includes a plurality of battery cells 210. For example, the box body 310 can be made of sheet metal and is stamped into a basin shape to include a bottom wall 311 and a surrounding wall 312. Therefore, since the bottom wall 311 and the surrounding wall 312 of the box body 310 are integrally stamped and formed, the connection between the bottom wall 311 and the surrounding wall 312 does not need to consider the sealing problem, and the sealing effect can be ensured, thereby preventing muddy water from penetrating into the box body 310 from the connection between the bottom wall 311 and the surrounding wall 312 to affect the battery assembly 200, thereby improving the reliability of the battery 1000. Moreover, the integrally stamped box body 310 does not need to be spliced, which can improve production efficiency. The battery cell 210 may generate heat during operation, or the battery cell 210 may need to be heated in a low temperature environment to keep the battery cell 210 within a suitable temperature range. The heat exchanger 100 may be provided to adjust the temperature of the battery cell 210, improve the stability of the battery cell 210, and improve the endurance of the battery 1000.

[0178] In some embodiments of the present application, Figure 16-Figure 18As shown, the battery 1000 includes a thermostat, which includes at least one of a first thermostat 110, a second thermostat 120 and a third thermostat 130, and at least one of the first thermostat 110, the second thermostat 120 and the third thermostat 130 includes a heat exchanger 100. The first thermostat 110 is disposed outside the box body 310 and is attached to the outer wall of the box body 310. The second thermostat 120 is disposed in the box assembly 300 and is located between the battery assembly 200 and the box assembly 300. The third thermostat 130 is disposed in the box assembly 300 and is located between two adjacent battery cells 210.

[0179] For example, the battery 1000 may include only one of the first thermostat 110, the second thermostat 120, and the third thermostat 130, or may include two of the first thermostat 110, the second thermostat 120, and the third thermostat 130, or may include all three of the first thermostat 110, the second thermostat 120, and the third thermostat 130. Thus, the thermostat may be set at an appropriate position according to actual conditions to meet the temperature regulation requirements of the battery 1000.

[0180] The specific location of the first temperature regulating member 110 outside the box body 310 is not limited, for example, Fig.16 At least part of the first temperature regulating member 110 can be disposed below the bottom wall 311 of the box body 310, so as to exchange heat with the battery assembly 200 in a wider range and improve the temperature regulating effect on the battery assembly 200. For another example, at least part of the first temperature regulating member 110 can also be disposed outside the surrounding wall 312 of the box body 310.

[0181] For example, Fig.16 As shown, the box assembly 300 may also include a bottom guard plate 340 located below the bottom wall 311 of the box body 310 to protect the box body 310 from bumps and other effects. At this time, if a first temperature control component 110 is provided below the bottom wall 311 of the box body 310, the first temperature control component 110 may be located between the bottom guard plate 340 and the bottom wall 311 of the box body 310, so that the bottom guard plate 340 may also protect the first temperature control component 110.

[0182] The specific location of the second temperature regulating member 120 in the box assembly 300 is not limited, for example, Fig.16, at least part of the second temperature regulating member 120 can be disposed above the bottom wall 311 of the box body 310, so as to be sandwiched between the bottom wall 311 of the box body 310 and the bottom of the battery assembly 200, so as to exchange heat with the battery assembly 200 in a wider range, thereby improving the temperature regulating effect on the battery assembly 200. For another example, at least part of the second temperature regulating member 120 can be disposed below the box cover 320, so as to be sandwiched between the box cover 320 and the top of the battery assembly 200, so as to exchange heat with the battery assembly 200 in a wider range, thereby improving the temperature regulating effect on the battery assembly 200.

[0183] The specific location of the third temperature regulating member 130 in the box assembly 300 is not limited, for example, Fig.17 The adjacent battery cells 210 in the battery assembly 200 may have their large surfaces facing each other, and the third temperature regulating member 130 may be disposed between the large surfaces of the adjacent battery cells 210 to enhance the temperature regulating effect on the battery cells 210 .

[0184] For example, in combination Fig.16 The temperature regulating element may be a flat tube structure, that is, the temperature regulating element is formed in the form of a flat tube with a width greater than a thickness, and a flow channel may be formed in the flat tube. A heat exchange liquid may be introduced into the flow channel to exchange heat with the battery assembly 200, thereby achieving a temperature regulating effect on the battery 1000.

[0185] The heat exchanger used in the battery is usually a double-layer brazed plate structure, that is, it is brazed by two layers of plates, and a heat exchange channel is formed between the two layers of plates. In the present application, for example, the flat tube can be spliced ​​by multiple sections of extruded tubes, and the thickness of the flat tube can be much smaller than the thickness of the double-layer brazed plate structure, so that it can occupy a smaller space and increase the capacity of the battery 1000.

[0186] In addition, the thermal management system of the battery 1000 is not limited to only including the above-mentioned temperature regulating components. For example, in some embodiments, Fig.18 The box assembly 300 may also include an expansion beam 330 disposed in the box body 310. For example, there may be multiple expansion beams 330, and the battery assembly 200 is sandwiched between the multiple expansion beams 330. For example, it may include a first expansion beam 330 and a second expansion beam 330. The battery assembly 200 is sandwiched between the first expansion beam 330 and the second expansion beam 330. A heat exchange flow channel may be set in the expansion beam 330 for temperature adjustment, thereby constituting a part of the thermal management system.

[0187] like Figure 1 As shown, the electric device according to the embodiment of the present application includes the battery 1000 according to the embodiment of the present application. The electric device can be any of the aforementioned devices or systems using the battery 1000. Since the performance of the battery 1000 is improved, it is beneficial to improve the working power performance of the electric device.

[0188] A heat exchange element 100 , a battery 1000 having the same, and a vehicle 1 according to a specific embodiment of the present invention will be described below with reference to the accompanying drawings.

[0189] like Figure 1-Figure 2 As shown, the vehicle 1 includes a battery 1000, and the battery 1000 includes a box assembly 300, a battery assembly 200 disposed in the box assembly 300, and a heat exchange element 100. Figure 3-Figure 7 As shown, the heat exchanger 100 includes four connecting tubes 10, a current collector 20 and two reinforcements 30. The connecting tube 10 is a straight tube extending in the first direction X and a plurality of connecting tubes 10 are arranged side by side in the second direction Y, and are formed by extrusion. The current collector 20 includes two current collecting components, a first current collecting component 24 and a second current collecting component 25, which are formed by extrusion; the current collector 20 also includes a cover 60 for welding and sealing the channel openings 205 at both ends of the current collecting component in the second direction Y, the space inside the second current collecting component 25 is connected along the second direction Y, a separator 50 is inserted in the first current collecting component 24 and an inlet 201 and an outlet 202 are integrated, and joints 40 are respectively provided at the inlet 201 and the outlet 202, so that the heat exchanger 100 forms a U-shaped flow path. The first current collecting component 24 and the second current collecting component 25 are both provided with four first openings 203.

[0190] The reinforcement 30 provided on the first collecting component 24 is recorded as the first reinforcement. The first reinforcement is punched and formed and includes a first plate body 31, a second plate body 32, a third plate body 33 and an installation flange 35; the first plate body 31 is provided with four second openings 301, and the edges of the second openings 301 are provided with connecting flanges 34, the second plate body 32 is provided with a through hole 302 opposite to the inlet 201 and the outlet 202, and the third plate body 33 is a continuously extended flat plate; the first plate body 31, the third plate body 33 and the connecting flange 34 are integrally formed, and the second plate body 32 and the installation flange 35 are integrally formed.

[0191] The reinforcement 30 provided on the second current collecting component 25 is recorded as the second reinforcement. The second reinforcement is punched and formed and includes a first plate body 31, a second plate body 32 and a third plate body 33. The first plate body 31 is provided with four second openings 301, and the edge of the second opening 301 is provided with a connecting flange 34. The first plate body 31 and the third plate body 33 are both continuously extended flat plates, and the reinforcement 30 is an integral part.

[0192] The first reinforcement and the second reinforcement each include a base material 36 and a solder layer 37, forming a double-sided composite solder. The first reinforcement is welded to the outer surface of the first current collecting component 24 and covers the socket 204, and the connecting flange 34 is inserted into the corresponding first opening 203; the second reinforcement is welded to the outer surface of the second current collecting component 25, and the connecting flange 34 is inserted into the corresponding first opening 203. The two ends of the connecting pipe 10 are respectively welded to the inner circumference of the connecting flange 34 of the first reinforcement and the second reinforcement.

[0193] The inner and outer surfaces of the first reinforcement and the second reinforcement are both provided with a solder layer 37, the inner surface is welded to the current collector 20, and the outer surface is welded to the joint 40 and the connecting tube 10, so that the current collector 20 is not directly welded to the connecting tube 10. Even if the current collector 20 uses a plate with a smaller thickness, it will not affect the connection area between the connecting tube 10 and the first opening 203 or the connection area between the joint 40 and the inlet 201 and the outlet 202, thereby affecting the sealing reliability; and the thinner plate makes the first opening 203, the inlet 201 and the outlet 202 easier to process and the cost is lower; the first reinforcement and the second reinforcement improve the structural strength of the current collector 20, and the thinner plate can also have good overall strength. The size of the joint 40 inserted into the first reinforcement and the first current collecting component 24 is 0.2mm~2mm, which is convenient for expanding the hole and riveting. The plate thickness of the first reinforcement and the first current collecting component 24 is 0.5mm~3mm. The double-layer structure formed here can enhance the strength of this place. In addition, the second plate body 32 of the first reinforcement member covers the welding position of the partition 50 and the first current collecting component 24 at the insertion port 204, which can improve the welding quality.

[0194] In the above embodiment, the first reinforcement and the second reinforcement strengthen the strength of the collector 20 and the strength of the welding position; the welding area of ​​the connecting tube 10 is increased by adopting the connecting flange 34; the welding quality is ensured by outsourcing the first reinforcement at the matching position of the partition 50 and the socket 204; the first plate body 31 and the second plate body 32 are separated parts, which can easily improve the positioning accuracy and reduce the difficulty of assembly and processing; the first reinforcement is integrated with the mounting flange 35, and the mounting positioning function is integrated, which is conducive to reducing the number of parts.

[0195] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0196] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heat exchange element, characterized in that: include: Multiple connecting pipes, arranged at intervals; A current collector having an inlet and an outlet, wherein the inlet is used to input a medium, and the outlet is used to output a medium, wherein the current collector is connected and communicated with each of the connecting tubes, and the current collector and the multiple connecting tubes together form a plurality of liquid flow paths arranged in parallel, and each of the liquid flow paths is from the inlet to the outlet; The reinforcing member is disposed on the current collector and is configured to enhance the strength of the current collector.

2. The heat exchange element according to claim 1, characterized in that: The current collector and the connecting pipe are both connected to the reinforcement.

3. The heat exchange element according to claim 1, characterized in that: The reinforcement member is arranged outside the current collector, and at least a portion of the reinforcement member is in contact with the outer surface of the current collector.

4. The heat exchange element according to claim 1, characterized in that: The current collector is provided with a first opening, the reinforcement is provided with a second opening opposite to the first opening, the periphery of the second opening is provided with a connecting flange, the connecting tube is passed through the first opening and the second opening, and the connecting tube is connected to the inner peripheral surface of the connecting flange.

5. The heat exchange element according to claim 4, characterized in that: The connecting flange is passed through the first opening.

6. The heat exchange element according to claim 5, characterized in that: The outer peripheral surface of the connecting flange is in contact with the wall surface of the reinforcing member forming the first opening.

7. The heat exchange element according to claim 4, characterized in that: The connecting pipe includes a connected main body section and a connecting section. In a direction perpendicular to the penetration direction of the second opening, the size of the connecting section is smaller than the size of the main body section. The connecting section is penetrated through the first opening and the second opening, and the outer peripheral surface of the connecting section is connected to the inner peripheral surface of the connecting flange.

8. The heat exchange element according to claim 7, characterized in that: The main body section abuts against a surface of the reinforcement member facing away from the current collector.

9. The heat exchange element according to any one of claims 1 to 8, characterized in that: A joint is provided at the inlet and / or the outlet, the reinforcement is provided with a through hole opposite to the inlet and / or the outlet, and the joint passes through the through hole and communicates with the inlet or the outlet.

10. The heat exchange element according to claim 9, characterized in that: A first limiting protrusion is provided on the outer peripheral surface of the joint, and the first limiting protrusion abuts against a side of the edge of the inlet or the outlet facing away from the reinforcement member; and / or, A second limiting protrusion is disposed on the outer peripheral surface of the joint, and the second limiting protrusion abuts against a side of the edge of the through hole facing away from the current collector.

11. The heat exchange element according to claim 9, characterized in that: The current collector has a first side wall and a second side wall adjacent to each other, and the reinforcement member includes a first plate body and a second plate body, wherein: The first side wall cooperates with the connecting pipe and fits with the first plate body, and the second side wall cooperates with the joint and fits with the second plate body.

12. The heat exchange element according to claim 11, characterized in that: The reinforcement member is an integral member; or the first plate body and the second plate body are separate members.

13. The heat exchange element according to claim 11, characterized in that: The reinforcement also includes a third plate body, which is connected to an edge of the first plate body away from the second plate body, and the current collector has a third side wall opposite to the second side wall, and the third plate body is in contact with the third side wall.

14. The heat exchange element according to any one of claims 1 to 8, characterized in that: The reinforcement is arranged outside the current collector and is provided with a mounting flange extending away from the current collector, and the mounting flange is used for mounting the heat exchange component.

15. The heat exchange element according to any one of claims 1 to 8, characterized in that: The current collector and / or the connecting pipe are welded to the reinforcement.

16. The heat exchange element according to claim 15, characterized in that: The reinforcement member includes a substrate and a solder layer disposed on the surface of the substrate, and the current collector and / or the connecting tube are welded to the solder layer.

17. The heat exchange element according to any one of claims 1 to 8, characterized in that: The current collector includes a first current collecting component, the first current collecting component is provided with the inlet and the outlet, the connecting tube is bent and extended and both ends of the connecting tube are connected to the first current collecting component, wherein one end of the connecting tube is connected to the inlet and the other end is connected to the outlet to form a liquid flow path.

18. The heat exchange element according to any one of claims 1 to 8, characterized in that: The current collector includes a first current collecting component and a second current collecting component, two ends of the connecting pipe are respectively connected to and communicated with the first current collecting component and the second current collecting component, and at least one of the first current collecting component and the second current collecting component is provided with the reinforcing member.

19. The heat exchange element according to claim 18, characterized in that: The inlet and the outlet are provided on the first current collecting component, and at least the first current collecting component is provided with the reinforcement.

20. The heat exchange element according to claim 19, characterized in that: The reinforcing member provided on the first current collecting member and the reinforcing member provided on the second current collecting member may have the same or different structures.

21. The heat exchange element according to claim 18, characterized in that: The multiple connecting tubes include a first connecting tube and a second connecting tube, the medium in the first connecting tube flows from the first flow collecting component to the second flow collecting component, the medium in the second connecting tube flows from the second flow collecting component to the first flow collecting component, the number of the first connecting tubes and the second connecting tubes is equal, and the second flow collecting component connects the first connecting tube and the second connecting tube in series to form two liquid flow paths.

22. The heat exchange element according to claim 17, characterized in that: The first flow collecting component is provided with a socket, and the heat exchange component also includes a partition, which is inserted into the socket and extends into the first flow collecting component to divide the space inside the first flow collecting component into an inlet channel and an outlet channel, the inlet is connected to the inlet channel, and the outlet is connected to the outlet channel.

23. The heat exchange element according to claim 22, characterized in that: The reinforcement member at least partially covers the socket.

24. The heat exchange element according to claim 1, characterized in that: The two ends of the current collector are provided with channel openings, and the heat exchange component further comprises a sealing cover, and the sealing cover seals the channel openings.

25. A battery, characterized in that: include A heat exchange element according to any one of claims 1 to 24.

26. The battery according to claim 25, characterized in that Also includes: A box assembly and a battery assembly, wherein the box assembly comprises a box body formed by integral stamping, the box body comprises a bottom wall and a surrounding wall, the battery assembly is arranged in the box body, and the battery assembly comprises a plurality of battery cells.

27. The battery according to claim 26, characterized in that The battery includes a temperature regulating element, the temperature regulating element includes at least one of a first temperature regulating element, a second temperature regulating element and a third temperature regulating element, at least one of the first temperature regulating element, the second temperature regulating element and the third temperature regulating element includes the heat exchange element, wherein: The first temperature regulating component is arranged outside the box body and is in contact with the outer wall of the box body; The second temperature regulating component is arranged in the box assembly and is located between the battery assembly and the box assembly; The third temperature regulating component is arranged in the box assembly and is located between two adjacent battery cells.

28. An electrical device, characterized in that: Comprising a battery according to any one of claims 25-27.

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