Thermal management component, battery, and electric device

Abstract

The present application relates to a thermal management component, a battery, and an electric device. The thermal management component comprises: a heat exchange tube provided with a heat exchange flow channel, wherein an end of the heat exchange tube is a port of the heat exchange flow channel; a manifold fitted to the end of the heat exchange tube and communicated with the port, wherein a heat exchange medium can flow into the heat exchange flow channel from the manifold or flow into the manifold from the heat exchange flow channel; and a connecting member connected between the heat exchange tube and the manifold and connected to the side walls or the peripheral walls of the manifold and the heat exchange tube. In the present application, the manifold is fitted to the end of the heat exchange tube, and the manifold is connected to the heat exchange tube by means of the connecting member; thus, the heat exchange tube can be well attached to the manifold by means of the surface of the end, and then the heat exchange tube is connected to the manifold by means of the connecting member, thereby improving the stability of the connection between the heat exchange tube and the manifold.

Description

Heat management component, battery and electric device

[0001] Cross-reference to related applications

[0002] This application is based on the Chinese Patent Application No. 2024208691331 entitled “Heat management component, battery and electric device” filed on April 24, 2024, which is incorporated by reference in its entirety into this application. TECHNICAL FIELD

[0003] The present application relates to the technical field of battery, in particular to a heat management component, a battery and an electric device. BACKGROUND

[0004] Energy saving and emission reduction is the key to the sustainable development of the automobile industry. Electric vehicles have become an important part of the sustainable development of the automobile industry due to their energy saving and environmental protection advantages. For electric vehicles, battery technology is an important factor for their development.

[0005] Temperature has an important influence on the performance of the battery, so the battery in the conventional technology will be provided with a heat management component for cooling the battery or heating the battery in a low temperature environment to make it reach the normal working temperature range.

[0006] However, in the current heat management component, the size and surface flatness of the heat exchange pipe are difficult to control, which can easily lead to poor connection when the heat exchange pipe is connected with the current collector, affecting the overall performance of the heat management component.

[0007] SUMMARY

[0008] Based on this, the present application provides a heat management component, a battery and an electric device.

[0009] In a first aspect, the present application provides a heat management component, comprising a heat exchange pipe, a current collector and a connecting piece, the heat exchange pipe has a heat exchange flow channel, and the end of the heat exchange pipe is a port of the heat exchange flow channel; the current collector is fitted to the end of the heat exchange pipe and communicates with the port, and the heat exchange medium can flow into the heat exchange flow channel from the current collector or flow into the current collector from the heat exchange flow channel; the connecting piece is connected between the heat exchange pipe and the current collector and connected with the side wall or the peripheral wall of the current collector and the heat exchange pipe.

[0010] The connecting piece is stably connected to the side wall or the peripheral wall of the current collector and the heat exchange pipe to improve the connection stability between the current collector and the heat exchange pipe.

[0011] In some embodiments, the connecting piece is in a ring structure and surrounds the periphery of the heat exchange pipe and the current collector.

[0012] Through the above structure, on the one hand, the connecting piece can be wrapped at the connection position of the heat exchange pipe and the current collector, and can play a certain protection role for the connection position. On the other hand, the connecting piece can also realize the fixed connection between the current collector and the heat exchange pipe, and realize the assembly of the two.

[0013] In some embodiments, the current collector comprises a main body portion and a plurality of support pieces, the main body portion is matched with the heat exchange pipe, and each support piece is arranged at intervals along the circumference of the main body portion.

[0014] By arranging the support pieces, the support pieces can support the heat exchange pipe to fix the size of the port position of the heat exchange pipe, improve the flatness of the port position, and make the heat exchange pipe and the current collector fit well, and then realize the connection between the heat exchange pipe and the current collector through the connecting piece. In this way, the connection stability between the heat exchange pipe and the current collector can be improved. In addition, the plurality of support pieces arranged at intervals can form multi-point support for the heat exchange flow channel, thereby improving the support stability.

[0015] In some embodiments, when the main body portion is matched with the heat exchange pipe, at least one support piece extends into the heat exchange flow channel.

[0016] In some embodiments, when the main body portion is matched with the heat exchange pipe, two support pieces extend into the heat exchange flow channel. In this way, the support pieces extending into the heat exchange flow channel can form more stable support for the heat exchange flow channel.

[0017] In some embodiments, each support piece has a support surface, and the support surface abuts against the inner wall of the heat exchange pipe. The support surface can make the support piece and the inner wall of the heat exchange pipe abut against each other more stably, thereby improving the support stability of the support piece for the heat exchange flow channel.

[0018] In some embodiments, the main body portion comprises a first connecting portion and a second connecting portion formed on the surface of the first connecting portion, a step surface is formed between the first connecting portion and the second connecting portion, one end of the connecting piece is wrapped on the step surface, and the other end is wrapped on the outer periphery of the heat exchange pipe.

[0019] Through the above structure, when the connecting piece is connected between the heat exchange pipe and the current collector, the connecting piece can be wrapped on the outer periphery of the heat exchange pipe and the step surface respectively, thereby improving the connection stability between the current collector and the heat exchange pipe.

[0020] In some embodiments, the first connecting portion has a first end surface, the second connecting portion is arranged on the first end surface, and the first end surface intersects with the step surface; wherein the first end surface is used for abutting against and limiting the end surface of the connecting piece.

[0021] By arranging the first end surface and forming a stepped structure between the first end surface and the second connecting portion, when the connecting piece is sleeved on the second connecting portion, a limiting fit can be formed between the connecting piece and the first end surface, thereby improving the assembly efficiency.

[0022] In some embodiments, the second connecting portion has a second end face at one end away from the first connecting portion, the second end face abuts against the end face of the heat exchange pipe; each support member is protrudingly arranged on the second end face, and the support surface of each support member is offset from the end face of the heat exchange pipe to be in abutment with the inner wall of the heat exchange pipe.

[0023] Thus, the support member can more stably support the inner wall of the heat exchange pipe, and the connection between the heat exchange pipe and the current collector is more stable.

[0024] In some embodiments, the current collector further comprises a wrapping portion arranged on the first connecting portion, the wrapping portion surrounds the outer periphery of the second connecting portion and is spaced from the second connecting portion to form a limiting groove, and the limiting groove is used for clamping the heat exchange pipe.

[0025] Thus, the connecting member is arranged around the outer periphery of the wrapping portion, and when the connecting member is fixed by the encapsulation injection molding process, the wrapping portion can prevent overflow of the injection molding process to the inside of the heat exchange pipe or the current collector, thereby achieving a certain protection effect.

[0026] In a second aspect, the application further provides a battery, comprising a box body, a battery cell and the heat management component as described above, the battery cell is arranged in the box body; the heat management component is arranged in the box body and is used for containing a heat exchange medium to adjust the temperature of the battery cell.

[0027] In some embodiments, the battery comprises a plurality of battery cells and a plurality of heat management components, the plurality of battery cells are arranged in multiple rows, and each row of battery cells is arranged between two adjacent heat management components.

[0028] In a third aspect, the application further provides a power utilization device, comprising the battery as described above, and the battery is used for providing electric energy.

[0029] The heat management component, the battery and the power utilization device described above, the current collector is matched with the end portion of the heat exchange pipe, and the connection between the current collector and the heat exchange pipe is realized through the connecting member, so that the heat exchange pipe and the current collector can be well abutted through the surface of the end portion, and then the connection between the heat exchange pipe and the current collector is realized through the connecting member, thereby improving the connection stability between the heat exchange pipe and the current collector. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments of the application. Obviously, the drawings described below are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor under the premise of the drawings.

[0031] FIG. 1 is a structural schematic view of a vehicle according to one or more embodiments.

[0032] FIG. 2 is an exploded structural schematic diagram of a battery according to one or more embodiments.

[0033] FIG. 3 is a structural schematic diagram of a thermal management component according to one or more embodiments.

[0034] FIG. 4 is an exploded view of a thermal management component according to one or more embodiments.

[0035] FIG. 5 is a partial enlarged view at A in FIG. 4.

[0036] FIG. 6 is a structural schematic diagram of a current collector in a thermal management component according to one or more embodiments.

[0037] FIG. 7 is a structural schematic diagram of a current collector in a thermal management component according to one or more embodiments.

[0038] Legend: 1000, vehicle; 100, battery; 200, controller; 300, motor; 10, box body; 20, battery cell; 30, thermal management component; 11, first part; 12, second part; 31, heat exchange pipe; 32, current collector; 33, connecting piece; 311, heat exchange flow channel; 321, opening; 322, support; 323, main body part; 324, first connecting part; 325, second connecting part; 326, stepped surface; 327, first end surface; 328, second end surface; 329, wrapping part; 330, limiting groove; a, preset direction. DETAILED DESCRIPTION

[0039] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below in conjunction with the drawings. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the present application. However, the present application can be implemented in many different ways other than those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0040] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0041] In addition, if there are these terms "first", "second", these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one feature. In the description of the present application, if the term "a plurality of" appears, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In the present application, unless otherwise explicitly specified and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be interpreted broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] In the present application, unless otherwise explicitly specified and limited, if the first feature is described as "on" or "below" the second feature and the like, it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the second feature, or only indicate that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the second feature, or only indicate that the first feature is lower than the second feature in horizontal height.

[0044] It should be noted that if an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for the purpose of description, and do not represent the only implementation.

[0045] At present, from the development of market situation, the application of power battery is more and more widely. Power battery is not only applied to energy storage power supply system of water power, thermal power, wind power and solar power station, but also widely used in electric bicycles, electric motorcycles, electric vehicles and other electric vehicles and other fields. With the continuous expansion of the application field of power battery, the market demand is also increasing.

[0046] The battery generally comprises a battery monomer and a box body, the battery monomer is placed in the box body, and the box body can provide accommodation space for the battery monomer and play a certain protection role. For the battery, the battery monomer is the component where the actual electrochemical reaction occurs. When the internal electrochemical reaction of the battery monomer occurs, heat will be generated.

[0047] With the cyclic use of the battery, the battery monomer continuously generates heat, so that the temperature inside the battery gradually rises, affecting the performance of the battery. Therefore, at present, a heat management component is generally arranged in the battery for cooling the battery or heating the battery to reach the normal working temperature range in a low temperature environment.

[0048] However, in the structure of the heat management component, the port of the heat exchange pipe is flat, and the size and surface flatness thereof are difficult to control. When the heat exchange pipe is connected with the current collector, the connection surfaces are poorly fitted, so that the heat exchange pipe and the current collector are poorly connected, affecting the overall performance of the heat management component.

[0049] Based on the above consideration, in order to solve the problem that the heat exchange pipe and the current collector are easily poorly connected at present, one or more embodiments of the present application provide a heat management component, when the heat exchange pipe is connected with the current collector, the current collector is matched with the end portion of the heat exchange pipe, and the connection between the current collector and the heat exchange pipe is realized through the connecting piece, so that the heat exchange pipe and the current collector can be well fitted through the surface of the end portion, and then the connection between the heat exchange pipe and the current collector is realized through the connecting piece, which can improve the connection stability between the heat exchange pipe and the current collector.

[0050] The embodiments of the present application provide a power consumption device using a battery as a power supply, which can be but is not limited to a mobile phone, a tablet, a notebook computer, an electric toy, an electric tool, an electric vehicle, an electric car, a ship, a spacecraft, etc. The electric toy can include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, an electric plane toy, etc., and the spacecraft can include an airplane, a rocket, a space shuttle, a spacecraft, etc.

[0051] The following embodiments are described with a power consumption device of an embodiment of the present application as an example for convenience.

[0052] Please refer to FIG. 1, the vehicle 1000 can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or a range extended vehicle. The vehicle 1000 is internally provided with a battery 100, which can be arranged at the bottom, head or tail of the vehicle 1000. The battery 100 can be used for power supply of the vehicle 1000, for example, the battery 100 can be used as an operating power source of the vehicle 1000. The vehicle 1000 can further include a controller 200 and a motor 300, and the controller 200 is used to control the battery 100 to supply power to the motor 300, for example, to meet the power demand of the vehicle 1000 during starting, navigation and driving.

[0053] In some embodiments of the present application, the battery 100 can not only be used as an operating power source of the vehicle 1000, but also be used as a driving power source of the vehicle 1000, to replace or partially replace fuel or natural gas to provide driving power for the vehicle 1000.

[0054] Please refer to FIG. 2, the battery 100 includes a box body 10 and a battery monomer 20, and the battery monomer 20 is contained in the box body 10. The box body 10 is used to provide a containing space for the battery monomer 20, and the box body 10 can adopt various structures. In some embodiments, the box body 10 can include a first part 11 and a second part 12, and the first part 11 and the second part 12 are mutually covered. The first part 11 and the second part 12 jointly define a containing space for containing the battery monomer 20. The second part 12 can be a hollow structure with one end open, and the first part 11 can be a plate structure, which is covered on the open side of the second part 12 to jointly define the containing space with the second part 12. The first part 11 and the second part 12 can also be hollow structures with one side open, and the open side of the first part 11 is covered on the open side of the second part 12. Of course, the box body 10 formed by the first part 11 and the second part 12 can have various shapes, such as a cylinder, a cuboid, etc.

[0055] In the battery 100, the battery monomer 20 can be multiple, and the multiple battery monomers 20 can be connected in series, in parallel or in a mixed manner. The mixed manner means that the multiple battery monomers 20 are connected in series and in parallel. The multiple battery monomers 20 can be directly connected in series, in parallel or in a mixed manner, and then the whole of the multiple battery monomers 20 is contained in the box body 10. Of course, the battery 100 can also be that the multiple battery monomers 20 are first connected in series, in parallel or in a mixed manner to form a battery module, and then the multiple battery modules are connected in series, in parallel or in a mixed manner to form a whole, which is contained in the box body 10. The battery 100 can further include other structures, for example, the battery 100 can further include a current combing component for realizing electrical connection between the multiple battery monomers 20.

[0056] Each battery cell 20 can be a secondary battery or a primary battery; can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 20 can be in the shape of a cylinder, a flat body, a cuboid, or other shapes.

[0057] Referring to FIGS. 3, 4, and 5, an embodiment of the present application provides a thermal management component 30, which includes a heat exchange pipe 31, a current collector 32, and a connecting piece 33. The heat exchange pipe 31 has a heat exchange flow channel 311, and the end of the heat exchange pipe 31 is a port of the heat exchange flow channel 311. The current collector 32 is fitted to the end of the heat exchange pipe 31 and communicates with the port, and the heat exchange medium can flow into the heat exchange flow channel 311 from the current collector 32 or flow into the current collector 32 from the heat exchange flow channel 311. The connecting piece 33 is connected between the heat exchange pipe 31 and the current collector 32 and is connected to the side wall or the peripheral wall of the current collector 32 and the heat exchange pipe 31.

[0058] The thermal management component 30 refers to a component arranged in the box 10 of the battery 100 and used to contain a heat exchange medium to adjust the temperature of the battery cell 20 in the box 10. The battery cell 20 generates heat during the circulation process, and the battery cell 20 can be cooled by the thermal management component 30. At this time, the thermal management component 30 can contain a cooling medium, and the thermal management component 30 can also be referred to as a cooling piece, a cooling system, a cooling plate, or a liquid cooling plate, etc. Of course, in some other cases, the thermal management component 30 can also be used to heat the battery cell 20, which is not described herein.

[0059] The heat exchange flow channel 311 is arranged in the heat exchange pipe 31, can extend along the preset direction a, and can provide a flow path for the heat exchange medium. The heat exchange pipe 31 is arranged in close contact with the surface of the battery cell 20, and when the heat exchange medium flows in the heat exchange flow channel 311, the heat generated by the battery cell 20 can be taken away, thereby achieving the cooling of the battery cell 20.

[0060] Further, the current collector 32 is arranged at opposite ends of the heat exchange pipe 31 along the preset direction a, and the current collector 32 is provided with an opening 321 that communicates with the port of the heat exchange flow channel 311.

[0061] Specifically, the heat exchange flow channel 311 extends along the preset direction a and penetrates the heat exchange pipe 31 in the preset direction a. In other words, the heat exchange flow channel 311 forms an inlet at one end along the preset direction a and forms an outlet at the other end. The heat exchange medium is introduced into the heat exchange flow channel 311 from the inlet and flows out from the outlet, and heat exchange is achieved in the process.

[0062] The current collector 32 is arranged at opposite ends of the heat exchange pipe 31 along a preset direction a. When the current collector 32 is arranged at the inlet side of the heat exchange flow channel 311, the opening 321 on the current collector 32 is the input port of the heat exchange medium. When the current collector 32 is arranged at the outlet side of the heat exchange flow channel 311, the opening 321 on the current collector 32 is the output port of the heat exchange medium.

[0063] When the current collector 32 is connected with the heat exchange pipe 31, the opening 321 on the current collector 32 is in communication with the heat exchange flow channel 311. Thus, the heat exchange medium can be input into the heat exchange flow channel 311 through the input port on the current collector 32, flow in the heat exchange flow channel 311, take away the heat of the battery monomer 20, and finally flow out from the output port on the current collector 32.

[0064] It should be noted that the heat generated by the battery monomer 20 is usually concentrated on the large face of the battery monomer 20. Therefore, the heat exchange pipe 31 is arranged in close contact with the large face of the battery monomer 20, so that the heat exchange medium can better exchange heat with the large face of the battery monomer 20. In this way, the heat exchange pipe 31 is usually arranged in a flat structure to match the large face of the battery monomer 20.

[0065] The heat exchange pipe 31 is internally hollow to form the heat exchange flow channel 311. The size and surface flatness of the port of the heat exchange pipe 31 are difficult to control. When the heat exchange pipe 31 is connected with the current collector 32, the heat exchange pipe 31 can not be completely in close contact with the current collector 32, which can also cause unstable connection between the heat exchange pipe 31 and the current collector 32.

[0066] Therefore, the current collector 32 is connected with the end of the heat exchange pipe 31, and then the connecting piece 33 is used to connect the side wall or the outer peripheral wall of the heat exchange pipe 31 and the current collector 32. The heat exchange pipe 31 and the current collector 32 can be in good surface close contact through the end, and then the connecting piece 33 is used to connect the heat exchange pipe 31 and the current collector 32. In this way, the connection stability between the heat exchange pipe 31 and the current collector 32 can be improved.

[0067] In some embodiments, the connecting piece 33 is annular and surrounds the outer periphery of the heat exchange pipe 31 and the current collector 32.

[0068] Specifically, the connecting piece 33 is arranged in an annular structure. After the current collector 32 is connected with the heat exchange pipe 31, the connecting piece 33 is arranged around the outer periphery of the connection position of the heat exchange pipe 31 and the current collector 32. On the one hand, the connecting piece 33 can cover the connection position of the heat exchange pipe 31 and the current collector 32, and play a certain protection role for the connection position. On the other hand, the connecting piece 33 can also realize the fixed connection between the current collector 32 and the heat exchange pipe 31, and realize the assembly of the two.

[0069] In some embodiments, the connecting piece 33 is configured as an injection molding ring.

[0070] When the current collector 32 is connected with the heat exchange pipe 31, the injection molding ring can be injection molded to the outer periphery of the heat exchange pipe 31 and the current collector 32 by a rubber injection molding process, so as to realize the connection of the heat exchange pipe 31 and the current collector 32.

[0071] In some embodiments, the materials of the current collector 32, the heat exchange pipe 31 and the connecting piece 33 can be materials with close melting points and mutual melting properties. In this way, when the connecting piece 33 is injection molded between the current collector 32 and the heat exchange pipe 31, on the one hand, the connecting piece 33 can realize the connection of the current collector 32 and the heat exchange pipe 31. On the other hand, after the connecting piece 33 is melted, it can fill the gap at the connection position of the current collector 32 and the heat exchange pipe 31, further improving the connection tightness of the two, so that the connection is more stable.

[0072] In some embodiments, the current collector 32 comprises a main body part 323 and a plurality of support pieces 322, the main body part 323 is matched with the heat exchange pipe 31, and each support piece 322 is arranged at intervals along the circumference of the main body part 323.

[0073] When the current collector 32 is connected with the heat exchange pipe 31, the support piece 322 extends into the heat exchange flow channel 311 along the preset direction a, so as to support the heat exchange flow channel 311 at the port position of the heat exchange pipe 31, so that the structure at the port position of the heat exchange pipe 31 is more stable and the surface is more flat. In this way, the heat exchange pipe 31 can be well attached to the current collector 32, improving the connection stability of the two.

[0074] In addition, the plurality of support pieces 322 arranged at intervals can form multi-point support for the heat exchange flow channel 311, improving the support stability.

[0075] In some embodiments, when the main body part 323 is matched with the heat exchange pipe 31, at least one support piece 322 extends into the heat exchange flow channel 311.

[0076] Further, when the main body part 323 is matched with the heat exchange pipe 31, two support pieces 322 extend into the heat exchange flow channel 311. The support piece 322 can support the heat exchange flow channel 311, so in actual application, the specific number of support pieces 322 extending into the heat exchange flow channel 311 can be set according to the actual size and actual situation of the heat exchange flow channel 311, which will not be described here.

[0077] Through the above structure, the support piece 322 extending into the heat exchange flow channel 311 can form more stable support for the heat exchange flow channel 311.

[0078] In some embodiments, each support piece 322 has a support surface, and the support surface abuts against the inner wall of the heat exchange pipe 31.

[0079] Specifically, each support piece 322 can be provided in a sheet structure, when the heat exchange pipe 31 is connected with the connecting part 324, each support piece 322 in the sheet structure extends into the heat exchange flow channel 311, and the support surface is the surface of each support piece 322 and the inner wall of the heat exchange flow channel 311 facing each other, so that the support surface can be in close contact with the inner wall of the heat exchange flow channel 311, and can better play a supporting role.

[0080] Therefore, the support piece 322 and the inner wall of the heat exchange pipe 31 can be more stably abutted by the support surface, thereby improving the support stability of the support piece 322 to the heat exchange flow channel 311.

[0081] Please refer to FIG. 5 and FIG. 6, in some embodiments, the main body part 323 includes a first connecting part 324 and a second connecting part 325 formed on the surface of the first connecting part 324, a step surface 326 is formed between the first connecting part 324 and the second connecting part 325, one end of the connecting piece 33 is covered on the step surface 326, and the other end is covered on the outer periphery of the heat exchange pipe 31.

[0082] Specifically, the end surface of the heat exchange pipe 31 is abutted on the first connecting part 324, so that the support piece 322 extends into the heat exchange flow channel 311, thereby forming support to the heat exchange flow channel 311.

[0083] Therefore, the first connecting part 324 can realize the connection between the current collector 32 and the heat exchange pipe 31, and the support piece 322 is protrudingly arranged on the second connecting part 325, which can form a supporting role to the heat exchange flow channel 311 of the heat exchange pipe 31.

[0084] Through the above structure, when the connecting piece 33 is connected between the heat exchange pipe 31 and the current collector 32, the connecting piece 33 can be covered on the outer periphery of the heat exchange pipe 31 and the step surface 326 respectively, thereby improving the connection stability between the current collector 32 and the connecting piece 33 and the heat exchange pipe 31.

[0085] In some embodiments, the first connecting part 324 has a first end surface 327, the second connecting part 325 is arranged on the first end surface 327, and the first end surface 327 intersects with the step surface 326; wherein the first end surface 327 is used for abutting and limiting with the end surface of the connecting piece 33.

[0086] Specifically, the first end surface 327 and the step surface 326 are arranged perpendicular to each other, and the step surface 326 is parallel to the preset direction a, and the first end surface 327 is perpendicular to the preset direction a.

[0087] When the current collector 32 is connected with the heat exchange pipe 31, the end surface of the heat exchange pipe 31 is abutted on the end surface of the second connecting portion 325, so that the support 322 can extend into the heat exchange flow channel 311 to support the heat exchange flow channel 311. At the same time, the injection molding ring is wrapped around the stepped surface 326 and the outer periphery of the heat exchange pipe 31, wherein the stepped surface 326 and the outer surface of the heat exchange pipe 31 are arranged in abutment with the inner wall of the injection molding ring.

[0088] Through the above structure, the stepped surface 326 can be in abutment with the inner wall of the connecting piece 33, thereby improving the connection stability between the current collector 32 and the connecting piece 33.

[0089] By arranging the first end surface 327 and the second connecting portion 325 to form a stepped structure, when the connecting piece 33 is sleeved on the second connecting portion 325, a limiting fit can be formed between the connecting piece 33 and the first end surface 327, thereby improving the assembly efficiency.

[0090] In some embodiments, the second connecting portion 325 has a second end surface 328 at an end away from the first connecting portion 324, the second end surface 328 is abutted with the end surface of the heat exchange pipe 31, and each support 322 is protrudingly arranged on the second end surface 328, and the support surface of each support 322 is staggered with the end surface of the heat exchange pipe 31 to be in abutment with the inner wall of the heat exchange pipe 31.

[0091] Therefore, the support surface of the support 322 can be in abutment with the inner wall of the heat exchange pipe 31, thereby more stably supporting the inner wall of the heat exchange pipe 31, and the connection between the heat exchange pipe 31 and the current collector 32 is more stable.

[0092] As shown in FIG. 7, in some embodiments, the current collector 32 further includes a wrapping portion 329 arranged on the first connecting portion 324, the wrapping portion 329 is arranged around the outer periphery of the second connecting portion 325 and is spaced apart from the second connecting portion 325 to form a limiting groove 330, and the limiting groove 330 is used for clamping the heat exchange pipe 31.

[0093] Specifically, the wrapping portion 329 is arranged in a sleeve structure, the wrapping portion 329 is arranged around the outer periphery of the second connecting portion 325 and is spaced apart from the second connecting portion 325 to form the limiting groove 330. The width of the limiting groove 330 matches the thickness of the pipe wall of the heat exchange pipe 31.

[0094] Therefore, when the current collector 32 is connected with the heat exchange pipe 31, the port of the heat exchange pipe 31 can be clamped into the limiting groove 330, thereby realizing the fixation of the port. At the same time, the wrapping portion 329 wraps around the outer periphery of the port of the heat exchange pipe 31.

[0095] Further, the connecting piece 33 is arranged around the outer periphery of the wrapping portion 329. When the connecting piece 33 is fixed by the overmolding process, the wrapping portion 329 can prevent overflow of the overmolding process to the inside of the heat exchange tube 31 or the current collector 32, thereby achieving a certain protection effect.

[0096] Referring back to FIG. 2, based on the same concept as the heat management component 30 described above, the application further provides a battery 100, characterized in that it comprises a box 10, a battery cell 20, and a heat management component 30 as described above. The battery cell 20 is arranged in the box 10, and the heat management component 30 is arranged in the box 10 and is used to contain a heat exchange medium to regulate the temperature of the battery cell 20.

[0097] In some embodiments, the battery 100 comprises a plurality of battery cells 20 and a plurality of heat management components 30, and the plurality of battery cells 20 are arranged in multiple rows, and each row of battery cells 20 is arranged between two adjacent heat management components 30.

[0098] It can be understood that the shape of the outer surface of the heat exchange tube 31 can be changed according to the shape of the battery cell 20, for example, if the battery cell 20 is a cuboid, the heat exchange tube 31 can be a straight tube with a flat surface parallel to the outer surface of the battery cell 20, and the outer surface of the heat exchange tube 31 contacts the outer surface of the battery cell 20 to effectively increase the contact area. For example, when the battery cell 20 is cylindrical, the heat exchange tube 31 can be wavy to match the shape of the battery cell 20.

[0099] Of course, the outer surface of the heat exchange tube 31 can also not completely match the outer surface of the battery cell 20.

[0100] Based on the same concept as the battery 100 described above, the application further provides a power utilization device comprising the battery 100 as described above, and the battery 100 is used to provide electric energy.

[0101] According to one or more embodiments, first, two current collectors 32 are arranged at opposite ends of the heat exchange tube 31 along a predetermined direction a, wherein the end surface of the heat exchange tube 31 abuts on the end surface of the second connecting portion 325, and the support 322 extends into the heat exchange channel 311, thereby supporting the heat exchange channel 311. At the same time, the end surface of the heat exchange tube 31 abuts on the end surface of the second connecting portion 325.

[0102] Further, the connecting piece 33 is arranged around the outer periphery of the second connecting portion 325 and the heat exchange tube 31, and the connecting piece 33 is injected into the connecting position of the second connecting portion 325 and the heat exchange tube 31 by the overmolding process, thereby sealing the connecting gap between the second connecting portion 325 and the heat exchange tube 31 while connecting the second connecting portion 325 and the heat exchange tube 31.

[0103] Thus far, the heat management member 30 is assembled. In use, the heat management member 30 is first arranged in the case 10, and the surface of the heat exchange pipe 31 is attached to the large face of the battery cell 20. The heat exchange medium is introduced from the opening 321 of the one-side current collector 32, enters the heat exchange flow channel 311 and flows therein, and then flows out from the opening 321 of the other-side current collector 32. In this process, the heat exchange medium exchanges heat with the large face of the battery cell 20, so as to regulate the temperature of the battery cell 20.

[0104] The technical features of the above-described embodiments can be combined in any manner. For the sake of brevity, not all possible combinations of the technical features in the above-described embodiments are described, however, as long as the combinations of the technical features do not result in contradictions, they shall be considered within the scope of the present disclosure.

[0105] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it shall not be understood as a limitation on the patent scope of the present application. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these shall be within the protection scope of the present application. Therefore, the patent protection scope of the present application shall be subject to the appended claims.

Claims

1. A thermal management component, comprising: A heat exchange tube having a heat exchange channel, wherein the end of the heat exchange tube is the port of the heat exchange channel; A heat exchanger is connected to the end of the heat exchange tube and communicates with the port, allowing the heat exchange medium to flow from the heat exchanger into the heat exchange channel or from the heat exchange channel into the heat exchanger. as well as A connector is used to connect the heat exchange tube and the current collector, and is connected to the side wall or outer peripheral wall of the current collector and the heat exchange tube.

2. The thermal management component according to claim 1, wherein, The connector has a ring-shaped structure and is arranged around the outer periphery of the heat exchange tube and the current collector.

3. The thermal management component according to claim 1 or 2, wherein, The current collector includes a main body and multiple supporting members. The main body is connected to the heat exchange tube, and each of the supporting members is arranged at intervals along the circumference of the main body.

4. The thermal management component according to claim 3, wherein, When the main body is connected to the heat exchange tube, at least one of the support members extends into the heat exchange channel.

5. The thermal management component according to claim 4, wherein, When the main body is connected to the heat exchange tube, the two support members extend into the heat exchange channel.

6. The thermal management component according to any one of claims 3-5, wherein, Each of the aforementioned support members has a support surface, which abuts against the inner wall of the heat exchange tube.

7. The thermal management component according to any one of claims 3-6, wherein, The main body includes a first connecting portion and a second connecting portion formed on the surface of the first connecting portion. A stepped surface is formed between the first connecting portion and the second connecting portion. One end of the connector covers the stepped surface, and the other end covers the outer periphery of the heat exchange tube.

8. The thermal management component according to claim 7, wherein, The first connecting portion has a first end face, the second connecting portion is disposed on the first end face, and the first end face intersects with the stepped surface; The first end face is used to abut and limit the connection with the end face of the connector.

9. The thermal management component according to claim 7 or 8, wherein, The second connecting part has a second end face at one end away from the first connecting part, and the second end face abuts against the end face of the heat exchange tube; each of the supporting members protrudes from the second end face, and the supporting surface of each of the supporting members is offset from the end face of the heat exchange tube so as to fit against the inner wall of the heat exchange tube.

10. The thermal management component according to any one of claims 7-9, wherein, The current collector also includes a wrapping portion disposed on the first connecting portion. The wrapping portion is disposed around the outer periphery of the second connecting portion and forms a limiting groove between it and the second connecting portion. The limiting groove is used to engage the heat exchange tube.

11. A battery, comprising: Box; The battery cell is housed within the casing. The thermal management component as described in any one of claims 1-10, wherein the thermal management component is disposed within the housing and is used to contain a heat exchange medium to regulate the temperature of the battery cell.

12. The battery according to claim 11, wherein, The battery includes multiple battery cells and multiple thermal management components. The multiple battery cells are arranged in multiple rows, and each row of battery cells is disposed between two adjacent thermal management components.

13. An electrical device comprising a battery as described in claim 11 or 12, the battery being used to provide electrical energy.

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