Battery and electric device

Abstract

The utility model belongs to the technical field of battery heat exchange, and provides a battery and a power utilization device, the battery comprises a battery monomer and a heat exchange assembly; the heat exchange assembly is used for carrying out heat exchange with the battery monomers, the heat exchange assembly comprises a heat exchange body and a current collecting body, a heat exchange flow channel is formed in the heat exchange body, and the heat exchange flow channel is used for circulating a heat exchange medium; an input channel and an output channel which are independent from each other are respectively formed in the current collecting body, the input channel comprises a first input sub-channel and at least one second input sub-channel communicated with the first input sub-channel, and the output channel comprises a first output sub-channel and at least one second output sub-channel communicated with the first output sub-channel; the flow collecting body is connected to the heat exchange body, and the second input sub-channel and the second output sub-channel communicate with the heat exchange runner. The utility model aims to simplify the overall structure of the heat exchange assembly in the battery and improve the assembly efficiency.

Description

Technical Field

[0001] This application relates to the technical field of battery heat exchange, and particularly to a battery and an electrical device. Background Art

[0002] The battery is an important part of an electric vehicle. The power battery will generate a large amount of heat energy during operation. Therefore, the thermal management system is an important system to ensure the charging and discharging performance and lifespan of the power battery. Among them, the heat exchange component for heat exchange of the battery is a key component of the thermal management system. For example, the heat exchange component uses a water-cooled plate that can be used for heat dissipation and cooling of the battery.

[0003] In the related art, an inlet pipe assembly is connected to the fluid inlet position of the heat exchange component, and an outlet pipe assembly is also connected to the fluid outlet position. The inlet pipe assembly and the outlet pipe assembly occupy a large space, have a complex structure, and both need to be installed independently, which affects the assembly efficiency. Summary of the Utility Model

[0004] The purpose of this application is to provide a battery and an electrical device, aiming to solve the technical problem that the connection of the pipe structures at the fluid inlet position and the fluid outlet position of the heat exchange component makes the structure complex and thus affects the assembly efficiency.

[0005] In a first aspect, this application provides a heat exchange component, including:

[0006] A battery cell;

[0007] A heat exchange component for performing heat exchange with the battery cell. The heat exchange component includes a heat exchange body and a manifold body. A heat exchange flow channel is formed inside the heat exchange body, and the heat exchange flow channel is used for flowing a heat exchange medium; independent input channels and output channels are respectively formed inside the manifold body. The input channel includes a first input sub-channel and at least one second input sub-channel communicating with the first input sub-channel. The output channel includes a first output sub-channel and at least one second output sub-channel communicating with the first output sub-channel; the manifold body is connected to the heat exchange body, and the second input sub-channel and the second output sub-channel are respectively communicated with the heat exchange flow channel.

[0008] In this example, a manifold body integrating the input channel and the output channel is connected to the heat exchange body. Through one manifold body, the inflow and outflow of the heat exchange medium on the heat exchange body can be realized, making the overall structure of the heat exchange component simpler and more compact, improving the assembly efficiency of the heat exchange component. There is only one connection position between the manifold body and the heat exchange body, which is beneficial to reducing the number of connection positions and mating surfaces in the heat exchange component, thereby reducing the risk of heat exchange medium leakage.

[0009] In one embodiment, there is one second input sub-channel and at least two second output sub-channels; or

[0010] there are at least two second input sub-channels and one second output sub-channel; or

[0011] there are at least two second input sub-channels and at least two second output sub-channels.

[0012] In this example, the input channel can thus achieve single-in and multi-out, multi-in and single-out, and multi-in and multi-out of the heat exchange medium, etc., so as to realize different adjustments of the convective resistance, make the conveying mode of the heat exchange medium more diverse, and can be adaptively selected according to requirements, making the use of this heat exchange component more flexible.

[0013] In one embodiment, when there are multiple second input sub-channels, the multiple second input sub-channels are spaced apart and arranged in parallel; and / or

[0014] when there are multiple second output sub-channels, the multiple second output sub-channels are spaced apart and arranged in parallel.

[0015] In this example, the second input sub-channels arranged in parallel and the second output sub-channels arranged in parallel are beneficial to balancing the acting force, improving the smoothness of the heat exchange medium flow, and are beneficial to reducing noise.

[0016] In one embodiment, the first input sub-channel and the first output sub-channel both extend along the first direction, the second input sub-channel and the second output sub-channel both extend along the second direction, the first direction and the second direction are arranged at a first included angle, and the range of the first included angle is 0° - 180°.

[0017] In this example, between the first input sub-channel and the second input sub-channel and between the first output sub-channel and the second output sub-channel, flexible arrangements can be made according to requirements such as flow rate and flow volume, so as to be beneficial to reducing the flow resistance of the heat exchange medium.

[0018] In one embodiment, the multiple second input sub-channels are spaced apart along the first direction; and / or

[0019] the multiple second output sub-channels are spaced apart along the first direction.

[0020] In this example, the above structural design enables multiple second input sub-channels and the first input sub-channel to be distributed in the same plane, enables multiple second output sub-channels and the first output sub-channel to be distributed in the same plane, and makes it difficult for the heat exchange medium to form a large counter-directional resistance during the flow process, which is beneficial to reducing the flow resistance and improving the flow rate of the fluid.

[0021] In one embodiment, the heat exchange body is in a sheet-like structure and has a heat exchange surface, and the second direction is set at a second included angle with the plane where the heat exchange surface is located, and the range of the second included angle is 0° - 180°.

[0022] In this example, the extending directions of the second input sub-channel and the second output sub-channel can both form an arbitrary included angle of 0° - 180° with the heat exchange surface, making the installation position of the manifold body relative to the heat exchange body more diverse and flexible.

[0023] In one embodiment, the second included angle is 90°.

[0024] In this example, the manifold body can be installed on the plate surface of the heat exchange body, which is beneficial to improving the convenience of assembling the manifold body and the heat exchange body.

[0025] In one embodiment, the heat exchange assembly further includes a temperature detection component connected to the manifold body, and the temperature detection component is used to collect temperature data in the input channel and / or the output channel.

[0026] In this example, by installing a temperature detection component on the manifold body, the temperature of the heat exchange medium flowing through the channel can be detected. Through the obtained temperature data, the temperature of the heat exchange medium in the heat exchange body can be analyzed and judged. By monitoring the temperature data of the heat exchange medium in the output channel, the temperature inside the battery can be predicted, so as to adjust the use state of the battery in real time and improve the reliability during the use of the battery.

[0027] In one embodiment, the heat exchange assembly further includes a sealing component. An installation hole is formed on the manifold body, the temperature detection component is inserted and matched with the installation hole, and the sealing component is connected between the temperature detection component and the hole wall of the installation hole.

[0028] In this example, by adding a sealing component between the mating surfaces of the temperature detection component and the installation hole, the heat exchange medium is not easily leaked from this position, reducing the risk of leakage.

[0029] In one embodiment, the sealing component includes a plurality of seals, and the plurality of seals are all connected between the temperature detection component and the hole wall of the installation hole, and the plurality of seals are arranged at intervals along the central axis direction of the installation hole.

[0030] In this example, by setting multiple seals, the sealing effect is improved.

[0031] In one embodiment, the temperature detection assembly includes a temperature detection component, a mounting seat, and a locking structure. The temperature detection component is connected to the mounting seat, and the temperature detection component extends outward into the input channel or the output channel; the locking structure is respectively connected to the mounting seat and the manifold body, so that the mounting seat is limited on the manifold body.

[0032] In this example, the mounting seat bears the temperature detection component and is connected to the manifold body through the locking structure, realizing the connection and fixation of the mounting seat and the manifold body. The overall structure of the temperature detection assembly is simple and compact, and the assembly of the mounting seat and the manifold body is convenient, which is beneficial to improving the assembly efficiency.

[0033] In one embodiment, a first limiting structure is formed on the manifold body; the locking structure includes a locking body connected to the mounting seat, a second limiting structure is formed on the locking body, and the locking body can be elastically deformed so that the second limiting structure can move to be inserted and matched with the first limiting structure.

[0034] In this example, the mounting seat is connected to the locking body and bears the temperature detection component to be connected to the manifold body. The locking body is elastically deformed, so that the second limiting structure and the first limiting structure on the locking body can achieve insertion and disengagement, making the installation and disassembly of the mounting seat and the manifold body more convenient.

[0035] In one embodiment, the first limiting structure is a groove structure, and the second limiting structure is a convex structure; or, the first limiting structure is a convex structure, and the second limiting structure is a groove structure, and the convex structure is inserted and matched with the groove structure.

[0036] In this example, the structures of the first limiting structure and the second limiting structure are simple and easy to manufacture, and the elastic deformation of the locking body can improve the reliability of the insertion limit between the first limiting structure and the second limiting structure.

[0037] In one embodiment, a plurality of locking bodies are provided. The plurality of locking bodies are arranged around a preset axis at intervals. The second limiting structure is formed on each locking body; a plurality of first limiting structures are provided corresponding to the second limiting structures. The plurality of first limiting structures are arranged around the preset axis at intervals. Each second limiting structure is inserted and matched with each first limiting structure in a direction perpendicular to the preset axis.

[0038] In this example, by setting multiple locking bodies, the reliability of the connection between the mounting base and the manifold body can be improved.

[0039] In one embodiment, mounting posts are formed on the manifold body. Mounting holes are formed in the mounting posts along a direction parallel to the preset axis, and the mounting holes penetrate into the input channel or the output channel. The mounting base and the temperature detection member are both inserted and fitted with the mounting holes, and the first limiting structure is formed on the outer cylindrical surface of the mounting posts.

[0040] In this example, by setting the mounting posts and forming the second limiting structure on the outer cylindrical surface of the mounting posts, the locking body can be connected to the mounting posts from the outside of the mounting posts, making the connection between the locking body and the mounting posts more convenient.

[0041] In one embodiment, the first input sub-channel forms a first channel opening on the manifold body, and the first output sub-channel forms a second channel opening on the manifold body; the heat exchange assembly includes a plurality of joint components all connected to the manifold body, and a part of the joint components are arranged to match the first channel opening and communicate with the first input sub-channel; another part of the joint components are arranged to match the second channel opening and communicate with the first output sub-channel.

[0042] In this example, by setting a plurality of joint components, the joint components are connected to the manifold body and respectively communicate with the input channel and the output channel, so that it is convenient for external components to communicate with the manifold body through the joint components, making the assembly and disassembly of the heat exchange assembly and the external components more convenient.

[0043] In one embodiment, a first positioning structure is formed on each of the joint components, and second positioning structures are respectively formed on the channel walls of the first input sub-channel and the channel walls of the first output sub-channel. The first positioning structure is connected to the second positioning structure to limit the rotation of the joint components.

[0044] In this example, by setting the first positioning structure and the second positioning structure, the purpose of restricting the rotation of the joint components relative to the manifold body is achieved, which is beneficial to improving the reliability of the connection between the joint components and the manifold body.

[0045] In one embodiment, the joint components are fixedly or detachably connected to the manifold body.

[0046] In this example, the connection mode between the joint components and the manifold body is flexible and convenient, and can be adaptively selected according to the application scenario.

[0047] In one embodiment, the current collector body includes a first subset of fluid, a second subset of fluid, and a connecting arm connected between the first subset of fluid and the second subset of fluid. An input channel is formed in the first subset of fluid, and an output channel is formed in the second subset of fluid.

[0048] In this example, the structure of the current collector body adopts a structure in which the first subset of fluid and the second subset of fluid are connected by a connecting arm, which is beneficial to reducing the overall weight of the current collector body.

[0049] In one embodiment, the heat exchange body includes a first heat exchange plate and a second heat exchange plate. The first heat exchange plate has a first set of opposite surfaces, and the second heat exchange plate has a second set of opposite surfaces. At least one of the first set of opposite surfaces and the second set of opposite surfaces is formed with a receiving groove structure. The first set of opposite surfaces and the second set of opposite surfaces are attached to each other to jointly enclose and form the heat exchange flow channel. The current collector body is connected to the first heat exchange plate or the second heat exchange plate.

[0050] In this example, the heat exchange body is formed by attaching the first heat exchange plate and the second heat exchange plate, and the structure is simple and convenient to manufacture.

[0051] In a second aspect, the present application provides an electrical device, which includes the battery in the above embodiment, and the battery is used to provide electrical energy.

[0052] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the following specifically gives the specific implementation manners of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments of the present application or the description of the prior art. Obviously, the following described drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings.

[0054] Figure 1 Structural schematic diagram of a vehicle provided by some embodiments of the present application;

[0055] Figure 2 Exploded structural schematic of a battery provided by some embodiments of the present application Figure 1 ;

[0056] Figure 3 Exploded structural schematic of a battery provided by some embodiments of the present application Figure 2 ;

[0057] Figure 4 Schematic structural diagram of the heat exchange component in the battery provided by some embodiments of the present application;

[0058] Figure 5 For Figure 4 exploded structural diagram;

[0059] Figure 6 Stereoscopic structural diagram of the current collector body in the heat exchange component in the battery provided by some embodiments of the present application;

[0060] Figure 7 Schematic structural diagram of the connection between the current collector body and the joint component in the heat exchange component in the battery provided by some embodiments of the present application;

[0061] Figure 8 For Figure 7 perspective view;

[0062] Figure 9 For Figure 8 top view;

[0063] Figure 10 Schematic structural diagram of the joint component in the heat exchange component in the battery provided by some embodiments of the present application;

[0064] Figure 11 Schematic structural diagram of the connection between the current collector body and the temperature detection component in the heat exchange component in the battery provided by some embodiments of the present application;

[0065] Figure 12 For Figure 11 perspective view;

[0066] Figure 13 Schematic structural diagram of the temperature detection component in the heat exchange component in the battery provided by some embodiments of the present application;

[0067] Figure 14 Perspective view of the heat exchange component in the battery provided by some embodiments of the present application;

[0068] Figure 15 For Figure 14 top view;

[0069] Figure 16 Flow direction schematic of the heat exchange component in the battery provided by some embodiments of the present application when circulating the heat exchange medium Figure 1 ;

[0070] Figure 17 Flow direction schematic of the heat exchange component in the battery provided by some embodiments of the present application when circulating the heat exchange medium Figure 2 ;

[0071] Figure 18Structural schematic of the battery provided by some embodiments of the present application Figure 1 ;

[0072] Figure 19 is Figure 18 an enlarged view of position A in

[0073] Figure 20 Structural schematic of the battery provided by some embodiments of the present application Figure 2 ;

[0074] Figure 21 is Figure 20 an enlarged view of position B in

[0075] Figure 22 Structural schematic of the battery provided by some embodiments of the present application Figure 3 ;

[0076] Figure 23 is Figure 22 a disassembled structural schematic of the enlarged view of position C in

[0077] Description of reference numerals:

[0078] 1000, Vehicle; 1100, Battery; 1110, Box; 1111, First Part; 1112, Second Part; 1113, Accommodating Space; 1114, Box Wall; 11141, Installation Groove; 1120, Battery Cell; 1130, Heat Exchange Component; 1131, Heat Exchange Body; 11311, Flow Channel; 11312, Flow Channel Inlet; 11313, Flow Channel Outlet; 11314, Heat Exchange Surface; 11315, First Heat Exchange Plate; 11316, Second Heat Exchange Plate; 11317, Accommodating Groove Structure; 11318, Heat Exchange Pairing Part; 1132, Current Collector Body; 11321, Input Channel; 113211, First Input Sub-Channel; 113212, Second Input Sub-Channel; 113213, First Channel Opening; 113214, Third Channel Opening; 11322, Output Channel; 113221, First Output Sub-Channel; 113222, Second Output Sub-Channel; 113223, Second Channel Opening; 113224, Fourth Channel Opening; 11323, Second Positioning Structure; 11324, Second Stopping Structure; 11325, Mounting Post; 113251, Mounting Hole; 11326, First Limiting Structure; 11327, First Sub-current Collector; 11328, Second Sub-current Collector; 11329, Connecting Arm; 1133, Connector Component; 11331, First Positioning Structure; 11332, First Stopping Structure; 1134, Temperature Detection Component; 11341, Temperature Detector; 11342, Mounting Base; 11343, Locking Structure; 113431, Locking Body; 113432, Second Limiting Structure; 1135, Sealing Component; 11351, Seal; 1136, Connector Protective Cap; 1200, Controller; 1300, Motor; X, First Direction; Y, Second Direction; a, First Angle; β, Second Angle. Detailed Embodiment

[0079] Hereinafter, embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and thus are only examples and should not be used to limit the protection scope of the present application.

[0080] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above accompanying drawings are intended to cover non-exclusive inclusion.

[0081] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality of" is more than two, unless otherwise specifically defined.

[0082] Reference to "embodiment" in this document means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0083] In the description of the embodiments of the present application, the term "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally represents an "or" relationship between the associated objects before and after.

[0084] In the description of the embodiments of the present application, the term "a plurality of" means more than two (including two). Similarly, "a plurality of groups" means more than two groups (including two groups), and "a plurality of pieces" means more than two pieces (including two pieces).

[0085] In the description of the embodiments of the present application, technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0086] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0087] The battery is an important component of an electric vehicle. A battery refers to a modular unit formed by combining multiple battery cells. A battery generally includes a box body and battery cells accommodated in the accommodation space of the box body. During operation, the power battery generates a large amount of heat energy. Therefore, the thermal management system is an important system to ensure the charging and discharging performance and lifespan of the power battery. Among them, the heat exchange component for heat exchange with the battery is a key component of the thermal management system. For example, the heat exchange component uses a water-cooled plate that can be used for heat dissipation and cooling of the battery.

[0088] In related technologies, an inlet pipe assembly is connected to the fluid inlet position on the heat exchange component. Moreover, an outlet pipe assembly is also connected to the fluid outlet position. The inlet pipe assembly and the outlet pipe assembly occupy a large amount of space, have a complex structure, and both need to be installed independently, which affects the assembly efficiency. In addition, since the inlet pipe assembly and the outlet pipe assembly are separately provided, it is easy to increase the connection and pairing positions on the heat exchange component, and the number of pairing and mating surfaces increases, resulting in an increased risk of leakage.

[0089] Therefore, this application provides a battery 1100. In the heat exchange component 1130 of the battery 1100, the manifold body 1132 is connected to the heat exchange body 1131, and at least two independent input channels 11321 and output channels 11322 are formed in the heat exchange component 1130. At least one second input sub-channel 113212 in the input channel 11321 communicates with the heat exchange flow channel 11311, and at least one second output sub-channel 113222 in the output channel 11322 communicates with the heat exchange flow channel 11311. Thus, the input channel 11321 and the output channel 11322 are integrated on a single manifold body 1132, which helps to simplify the structure and improve the overall assembly efficiency of the heat exchange component 1130. By assembling a single manifold body 1132 with the heat exchange body 1131, the number of connection positions with the heat exchange body 1131 is reduced, and the number of mating surfaces is decreased, which helps to reduce the risk of leakage.

[0090] Specifically, referring to Figure 2 and Figure 3As shown in the figure, an embodiment of the present application provides a battery 1100. The battery 1100 refers to a modular unit formed by combining multiple battery cells 1120. The battery 1100 generally includes a box body 1110 and battery cells 1120 accommodated in the accommodation space 1113 of the box body 1110. During the charging and discharging process of the battery 1100, the battery cells 1120 will generate heat. Therefore, a heat exchange component 1130 is usually configured in the battery 1100 to manage the temperature of the battery 1100. The heat exchange component 1130 plays a role in heat exchange in the battery 1100. For example, the heat exchange component 1130 can be arranged close to the battery cells 1120 or in contact with the battery cells 1120, so as to perform heat exchange on the battery cells 1120. For example, the heat exchange component 1130 is a cooling component to dissipate heat and cool the battery cells 1120. The battery 1100 disclosed in the embodiment of the present application can be used in an electrical device using the battery 1100 as a power source or various energy storage systems using the battery 1100 as an energy storage element. The electrical device can be, but is not limited to, a mobile phone, a tablet computer, a laptop computer, an electric toy, an electric tool, a battery car, an electric vehicle, a ship, a spacecraft, etc. Among them, the electric toy can include a fixed or mobile electric toy. For example, a game console, an electric vehicle toy, an electric ship toy, an electric plane toy, etc. The spacecraft can include an airplane, a rocket, a space shuttle, a spaceship, etc.

[0091] For the convenience of description in the following embodiments, a vehicle 1000, which is an electrical device in an embodiment of the present application, is taken as an example for description.

[0092] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of a vehicle 1000 provided in some embodiments of the present application. The vehicle 1000 can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. The battery 1100 is arranged inside the vehicle 1000, and the battery 1100 can be arranged at the bottom, the head or the tail of the vehicle 1000. The battery 1100 can be used for power supply of the vehicle 1000. For example, the battery 1100 can be used as an operating power source of the vehicle 1000. The vehicle 1000 can also include a controller 1200 and a motor 1300. The controller 1200 is used to control the battery 1100 to supply power to the motor 1300. For example, it is used for the working power requirements during the start, navigation and driving of the vehicle 1000.

[0093] In some embodiments of the present application, the battery 1100 can not only be used as an operating power source of the vehicle 1000, but also as a driving power source of the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0094] According to some embodiments of the present application, refer to Figure 2-9As shown in the figure. An embodiment of the present application provides a battery 1100, which can also be referred to as a battery 1100 pack. The battery 1100 includes battery cells 1120 and a heat exchange component 1130. Among them, the heat exchange component 1130 is used for heat exchange with the battery cells 1120. The heat exchange component 1130 includes a heat exchange body 1131 and a current collecting body 1132. A heat exchange flow channel 11311 is formed inside the heat exchange body 1131, and the heat exchange flow channel 11311 is used for circulating a heat exchange medium. Independent input channels 11321 and output channels 11322 are respectively formed inside the current collecting body 1132. The input channel 11321 includes a first input sub-channel 113211 and at least one second input sub-channel 113212 connected to the first input sub-channel 113211. The output channel 11322 includes a first output sub-channel 113221 and at least one second output sub-channel 113222 connected to the first output sub-channel 113221. The current collecting body 1132 is connected to the heat exchange body 1131, and the second input sub-channel 113212 and the second output sub-channel 113222 are respectively connected and communicated with the heat exchange flow channel 11311.

[0095] Among them, the battery 1100 can be formed by first connecting multiple battery cells 1120 in series, parallel, or in a mixed connection to form a battery module. One battery module is accommodated in one battery 1100, and multiple battery modules are then connected in series, parallel, or in a mixed connection to form an integral body. For example, multiple battery modules are arranged in an array and accommodated in a box 1110. The battery 1100 may also include other structures. For example, the battery 1100 may further include a busbar component for realizing electrical connection between multiple battery cells 1120. The busbar component and the connection between the busbar component and the battery cells 1120 can be sealed with sealant. The heat exchange component 1130 can also be used for heat exchange of the busbar component and the like.

[0096] The battery cell 1120 refers to the smallest unit that makes up the battery 1100. Among them, each battery cell 1120 can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 1120 can be in the shape of a cylinder, a flat body, a cuboid, or other shapes.

[0097] The heat exchange body 1131 is a component for circulating a heat exchange medium for heat exchange. The heat exchange body 1131 can adopt a sheet-like structure. For example, a plate structure, a shell structure, etc. When the heat exchange body 1131 is a plate structure, one or more plate surfaces of the plate structure can be heat exchange surfaces 11314, and the heat exchange flow channel 11311 can be arranged close to the heat exchange surface 11314.

[0098] The heat exchange flow channel 11311 is opened inside the heat exchange body 1131. A heat exchange medium can flow through the heat exchange flow channel 11311. The heat exchange medium can be a fluid. For example, the heat exchange medium is a liquid or a gas, such as water, oil, air with a preset temperature, etc. The heat exchange flow channel 11311 can be extended inside the heat exchange body 1131 according to a preset path shape. For example, the preset path shape can be spiral or reciprocally bent, or a combination of spiral and reciprocal bending. The preset path can be various shapes formed by a combination of straight lines and curves. The preset path along which the heat exchange flow channel 11311 extends can be adaptively designed according to requirements such as heat exchange efficiency, etc., so as to preferably cover a larger area of the heat exchange surface 11314. The heat exchange flow channel 11311 can be a hole structure formed inside the heat exchange body 1131. Since the heat exchange medium needs to flow in and out of the heat exchange flow channel 11311 to form a cycle inside the heat exchange body 1131, a flow channel inlet 11312 and a flow channel outlet 11313 need to be opened on the heat exchange body 1131. Both the flow channel inlet 11312 and the flow channel outlet 11313 are connected to the heat exchange flow channel 11311. One or more flow channel inlets 11312 can be provided, and one or more flow channel outlets 11313 can be provided.

[0099] The manifold body 1132 is connected to the heat exchange body 1131. The manifold body 1132 and the heat exchange body 1131 can be connected in a fixed or detachable manner. For example, welding, riveting, bolt connection, etc. can be used, such as brazing, etc. An input channel 11321 and an output channel 11322 are respectively opened inside the manifold body 1132. The fact that the input channel 11321 and the output channel 11322 are independent means that they are not connected to each other. Both the input channel 11321 and the output channel 11322 are connected to the heat exchange flow channel 11311. The heat exchange medium is input into the heat exchange flow channel 11311 through the input channel 11321, and the heat exchange medium in the heat exchange flow channel 11311 is output to the external space through the output channel 11322, so that the heat exchange medium circulates in the heat exchange flow channel 11311.

[0100] Specifically, for the input channel 11321, the input channel 11321 is extended, and on the collecting body 1132, the two extended ends of the input channel 11321 respectively form a first channel opening 113213 and one or more third channel openings 113214, the first channel opening 113213 is connected to the first input sub-channel 113211, the end of the first input sub-channel 113211 away from the second input sub-channel 113212 forms the first channel opening 113213, the third channel opening 113214 is connected to the second input sub-channel 113212, the end of the second input sub-channel 113212 away from the first input sub-channel 113211 forms the third channel opening 113214, and the third channel opening 113214 is connected to and connected with the channel inlet 11312 of the heat exchange channel 11311.

[0101] For the output channel 11322, the output channel 11322 is extended, and on the collecting body 1132, the two extended ends of the output channel 11322 respectively form a second channel opening 113223 and one or more fourth channel openings 113224, the second channel opening 113223 is connected to the first output sub-channel 113221, the end of the first output sub-channel 113221 away from the second output sub-channel 113222 forms the second channel opening 113223, the fourth channel opening 113224 is connected to the second output sub-channel 113222, the end of the second output sub-channel 113222 away from the first output sub-channel 113221 forms the fourth channel opening 113224, and the fourth channel opening 113224 is connected to and connected with the channel outlet 11313 of the heat exchange channel 11311.

[0102] For example, the structural form of the input channel 11321 may include: One structural form is that the input channel 11321 includes a first input sub-channel 113211 and a second input sub-channel 113212, and the output channel 11322 includes a first output sub-channel 113221 and a second output sub-channel 113222. It can be seen that the heat exchange component 1130 forms a single-in and single-out flow pattern for the heat exchange medium; Another structural form is that the input channel 11321 includes a first input sub-channel 113211 and a second input sub-channel 113212, and the output channel 11322 includes a first output sub-channel 113221 and multiple second output sub-channels 113222. It can be seen that the heat exchange component 1130 forms a single-in and multi-out flow pattern for the heat exchange medium; Yet another structural form is that the input channel 11321 includes a first input sub-channel 113211 and multiple second input sub-channels 113212, and the output channel 11322 includes a first output sub-channel 113221 and a second output sub-channel 113222. It can be seen that the heat exchange component 1130 forms a multi-in and single-out flow pattern for the heat exchange medium; Still another structural form is that the input channel 11321 includes a first input sub-channel 113211 and multiple second input sub-channels 113212, and the output channel 11322 includes a first output sub-channel 113221 and multiple second output sub-channels 113222. It can be seen that the heat exchange component 1130 forms a multi-in and multi-out flow pattern for the heat exchange medium.

[0103] It can be seen that in the heat exchange component 1130, the structural forms of the input channel 11321 and the output channel 11322 in the manifold body 1132 are diverse and the arrangement is flexible. Among various combination forms, increasing the number of the second output sub-channels 113222 and the second input sub-channels 113212 is beneficial to forming multiple flow paths at the intersection positions and connection positions between the heat exchange flow channels 11311 and the second input sub-channels 113212 and the second output sub-channels 113222 respectively. The multiple flow paths can increase the fluid flow rate and flow velocity at the connection positions, thereby being beneficial to reducing the flow resistance at the connection positions, and further improving the heat exchange efficiency of the heat exchange component 1130 and maintaining the stability of the heat exchange system.

[0104] In this example, a current collecting body 1132 integrating an input channel 11321 and an output channel 11322 is connected to the heat exchange body 1131. The heat exchange medium can flow in and out of the heat exchange body 1131 through the current collecting body 1132, making the overall structure of the heat exchange assembly 1130 simpler and more compact, improving the assembly efficiency of the heat exchange assembly 1130, and there is only one connection position between the current collecting body 1132 and the heat exchange body 1131, which is conducive to reducing the number of connection positions and matching surfaces in the heat exchange assembly 1130, thereby reducing the risk of heat exchange medium leakage. In addition, by designing the structure of the input channel 11321 and the output channel 11322, the input channel 11321 can realize single-in and single-out, single-in and multiple-out, multiple-in and single-out, and multiple-in and multiple-out, etc., of the heat exchange medium, so as to achieve different adjustments of convection resistance, making the heat exchange medium delivery method more diverse, and can be adaptively selected according to requirements, making the use of the heat exchange assembly 1130 more flexible.

[0105] Since the heat exchange component is a heat exchange device that uses fluid as a cooling medium, such as a water cooling plate, a heat dissipation component that uses water as a cooling medium, the fluid pressure difference is an important parameter in the heat exchange system, which directly affects the cooling efficiency of the battery and the stability of the system. The fluid pressure difference mainly refers to the pressure difference of the fluid when entering and exiting the inlet and outlet positions of the heat exchange component (such as a water cooling plate). The appropriate pressure difference is crucial to the performance of the heat exchange system.

[0106] In the related art, the fluid input port and output port of the heat exchange body in the heat exchange assembly are respectively connected to a slender connecting pipe. The connecting pipe is long and has a narrow diameter, which makes it very easy for the fluid to accumulate and get blocked at the inlet of the connecting pipe, resulting in poor fluid circulation and resistance. When the flow resistance of the fluid at the input and output positions is large, it will affect the flow rate and flow rate of the fluid, resulting in reduced heat exchange efficiency, and then reduced heat dissipation capacity of the equipment, which may cause battery overheating and affect its performance and life; the increase in fluid resistance will make the system more sensitive to parameter changes, and a small change in flow rate may cause system instability and affect the stability of the system.

[0107] Therefore, in some examples, reference Figure 6 , Figure 8 , Figure 12 and Figure 14 As shown, the second input subchannel 113212 is provided with one, and the second output subchannel 113222 is provided with at least two; or, the second input subchannel 113212 is provided with at least two, and the second output subchannel 113222 is provided with one; or, the second input subchannel 113212 is provided with at least two, and the second output subchannel 113222 is provided with at least two.

[0108] Among them, in one case, the input channel 11321 includes a first input sub-channel 113211 and a second input sub-channel 113212 communicating with the first input sub-channel 113211, and the output channel 11322 includes a first output sub-channel 113221 and at least two second output sub-channels 113222 communicating with the first output sub-channel 113221. In this example, the heat exchange component 1130 forms a single-inlet multi-outlet structure, so that when the heat exchange medium is output to the outside of the heat exchange flow path 11311, the output paths increase, and multiple output paths can increase the fluid flow rate and flow velocity at the connection position, which is beneficial to reducing the flow resistance at the connection position, thereby improving the heat exchange efficiency of the heat exchange component 1130 and maintaining the stability of the heat exchange system.

[0109] In another case, the input channel 11321 includes a first input sub-channel 113211 and at least two second input sub-channels 113212 communicating with the first input sub-channel 113211, and the output channel 11322 includes a first output sub-channel 113221 and a second output sub-channel 113222 communicating with the first output sub-channel 113221. In this example, the heat exchange component 1130 forms a multi-inlet single-outlet structure, so that when the heat exchange medium is output into the heat exchange flow path 11311, the input paths increase, and multiple input paths can increase the fluid flow rate and flow velocity at the connection position, which is beneficial to reducing the flow resistance at the connection position, thereby improving the heat exchange efficiency of the heat exchange component 1130 and maintaining the stability of the heat exchange system.

[0110] Another case is, in combination with Figure 8 , Figure 12 and Figure 14 as shown, the input channel 11321 includes a first input sub-channel 113211 and at least two second input sub-channels 113212 communicating with the first input sub-channel 113211, and the output channel 11322 includes a first output sub-channel 113221 and at least two second output sub-channels 113222 communicating with the first output sub-channel 113221. In this example, the heat exchange component 1130 forms a multi-inlet multi-outlet structure, so that when the heat exchange medium is output into and input from the heat exchange flow path 11311, both the input paths and the output paths increase, and multiple input paths and output paths can further increase the fluid flow rate and flow velocity at the connection position, which is beneficial to further reducing the flow resistance at the connection position, thereby improving the heat exchange efficiency of the heat exchange component 1130 and maintaining the stability of the heat exchange system.

[0111] In this example, by designing the structures of the input channel 11321 and the output channel 11322, the input channel 11321 can achieve single-in and multi-out, multi-in and single-out, and multi-in and multi-out of the heat exchange medium, etc., so as to realize different adjustments of the flow resistance, make the conveying mode of the heat exchange medium more diverse, and can be adaptively selected according to requirements, making the use of this heat exchange component 1130 more flexible; the heat exchange medium forms multiple flow paths at the intersection and connection positions of the heat exchange flow path 11311 with the second input sub-channel 113212 and the second output sub-channel 113222 respectively. The multiple flow paths can increase the fluid flow rate and flow velocity at the connection position, which is beneficial to reducing the flow resistance at the connection position, and then improving the heat exchange efficiency of the heat exchange component 1130 and maintaining the stability of the heat exchange system.

[0112] Combined Figure 16 with Figure 17 As shown, when there are multiple second input sub-channels 113212 and multiple second output sub-channels 113222, when injecting the heat exchange medium into the heat exchange flow path 11311 of the heat exchange body 1131, the heat exchange medium enters the first input sub-channel 113211 through each first channel port 113213, and is divided into multiple branches at the connection position of the first input sub-channel 113211 and the second input sub-channel 113212. The heat exchange medium enters into multiple second input sub-channels 113212 respectively, and the heat exchange medium enters the heat exchange flow path 11311 through two second input sub-channels 113212. When discharging the heat exchange medium to the outside of the heat exchange body 1131, the heat exchange medium enters into each second output sub-channel 113222 from the heat exchange flow path 11311. The heat exchange medium in multiple second output sub-channels 113222 converges into the first output sub-channel 113221 and is discharged to the external space through the second channel port 113223. For example, there are two second input sub-channels 113212 and two second output sub-channels 113222 respectively, that is to say, the manifold body 1132 has two third channel ports 113214 and two fourth channel ports 113224. It can be seen that when injecting and discharging the heat exchange medium, both two second input sub-channels 113212 and two second output sub-channels 113222 can play a role in dispersing the fluid. Therefore, the pressure and resistance of the fluid can be dispersed at the positions of the flow path inlet 11312 and the flow path outlet 11313, the heat exchange medium flows more smoothly, the flow resistance is reduced, and the flow rate is increased.

[0113] In this example, a seal can be provided between the current collecting body 1132 and the heat exchange body 1131, at the position where the third channel opening 113214 and the flow channel inlet 11312 are connected, and at the position where the fourth channel opening 113224 and the flow channel outlet 11313 are connected, so as to improve the sealing between the current collecting body 1132 and the heat exchange body 1131 and reduce the risk of leakage; one or more flow channel inlets 11312 can be provided, and one or more flow channel outlets 11313 can be provided. For the first channel opening 113213 and the second channel opening 113223, they can be directly matched with external pipe fittings, or they can be combined through the joint component 1133 equal to the external pipe fittings and other structures to input or output the heat exchange medium; the first input sub-channel 113211 and the first output sub-channel 113221 can be provided with one or more.

[0114] By respectively providing an input channel 11321 and an output channel 11322 on the current collecting body 1132, a plurality of second input sub-channels 113212 are respectively formed at the position where the input channel 11321 is connected to the heat exchange flow channel 11311, thereby facilitating the increase of the flow area and flow volume of the heat exchange medium when it enters the heat exchange flow channel 11311, and a plurality of second output sub-channels 113222 are respectively formed at the position where the output channel 11322 is connected to the heat exchange flow channel 11311, thereby facilitating Increasing the flow area and flow volume of the heat exchange medium when flowing out of the heat exchange channel 11311 is helpful to reduce the accumulation and stacking of the heat exchange medium at the channel inlet 11312 and the channel outlet 11313, and reduce the flow resistance of the heat exchange medium at the connection position between the heat exchange channel 11311 and the input channel 11321 and the flow resistance at the connection position between the heat exchange channel 11311 and the output channel 11322, thereby improving the circulation efficiency, thereby improving the heat exchange efficiency, and the heat exchange medium circulates more smoothly, which is beneficial to maintaining the stability of the system.

[0115] In some examples, reference Figure 8 , Figure 12 and Figure 14 As shown, when there are multiple second input sub-channels 113212, the multiple second input sub-channels 113212 are spaced apart and arranged in parallel.

[0116] Since the second input sub-channel 113212 is directly connected to the heat exchange channel 11311 and each second input sub-channel 113212 is arranged in parallel, when the heat exchange medium enters the heat exchange channel 11311 from the second input sub-channel 113212, the force of the heat exchange medium on the collecting body 1132 and the connection position between the collecting body 1132 and the heat exchange body 1131 is more balanced, which is beneficial to reducing the impact of the unbalanced force of the fluid on the heat exchange component 1130 and reducing noise, etc.

[0117] In some examples, referring to Figure 8 , Figure 12 and Figure 14 as shown, when there are multiple second output sub-channels 113222, the multiple second output sub-channels 113222 are spaced apart and arranged in parallel with each other.

[0118] Since the second output sub-channels 113222 are directly connected to the heat exchange flow channel 11311, arranging the second output sub-channels 113222 in parallel with each other enables the heat exchange medium to have a more balanced acting force on the manifold body 1132 and the connection position between the manifold body 1132 and the heat exchange body 1131 when entering the second output sub-channels 113222 from the heat exchange flow channel 11311, which is beneficial to reducing the influence of the unbalanced acting force of the fluid on the heat exchange assembly 1130 and beneficial to reducing noise, etc.

[0119] In this example, the second input sub-channels 113212 arranged in parallel and the second output sub-channels 113222 arranged in parallel are beneficial to balancing the acting force, improving the smoothness of the heat exchange medium flow, and beneficial to reducing noise.

[0120] In some examples, referring to Figure 8 as shown, the first input sub-channel 113211 and the first output sub-channel 113221 both extend along the first direction X, the second input sub-channel 113212 and the second output sub-channel 113222 both extend along the second direction Y, and the first direction X and the second direction Y are arranged at a first included angle a, and the range of the first included angle a is 0° - 180°.

[0121] Specifically, the range of the first included angle a is 0° - 180°, and the first included angle a can be any value between 0° and 180°. For example, the first included angle a can be 0°, 30°, 45°, 90°, 135°, 180°, etc. When there are multiple second input sub-channels 113212, for the input channel 11321, when the first included angle a is 90°, the first input sub-channel 113211 is perpendicular to each of the second input sub-channels 113212; when the first included angle a is 0° or 180°, it can be considered that the first input sub-channel 113211 and each of the second input sub-channels 113212 are arranged in parallel. Among them, when the multiple second input sub-channels 113212 are in the same plane, the extending direction (i.e., the first direction X) of the first input sub-channel 113211 can be parallel or perpendicular to the above-mentioned plane, so as to form various arrangement manners between the first input sub-channel 113211 and each of the second input sub-channels 113212.

[0122] For the output channel 11322, when there are multiple second output sub-channels 113222, when the first included angle a is 90°, the first output sub-channel 113221 is perpendicular to each of the second output sub-channels 113222; when the first included angle a is 0° or 180°, it can be considered that the first output sub-channel 113221 and each of the second output sub-channels 113222 are parallel to each other. Among them, when the multiple second output sub-channels 113222 are in the same plane, the extending direction of the first output sub-channel 113221 (i.e., the first direction X) can be parallel or perpendicular to the above-mentioned plane, so as to form various arrangement modes between the first output sub-channel 113221 and each of the second output sub-channels 113222.

[0123] In this example, between the first input sub-channel 113211 and the second input sub-channel 113212, and between the first output sub-channel 113221 and the second output sub-channel 113222, flexible arrangements can be made according to requirements such as flow velocity and flow rate, so as to facilitate reducing the flow resistance of the heat exchange medium.

[0124] In some examples, referring to Figure 8 , Figure 9 , Figure 14 and Figure 15 as shown, the multiple second input sub-channels 113212 are spaced apart along the first direction X; and / or, the multiple second output sub-channels 113222 are spaced apart along the first direction X.

[0125] For the input channel 11321, the first input sub-channel 113211 extends along the first direction X, the multiple second input sub-channels 113212 are spaced apart along the first direction X, and the multiple second input sub-channels 113212 are spaced apart and parallel to each other. Therefore, it can be known that the multiple second input sub-channels 113212 are in the same plane, and the first direction X is parallel to this plane. Therefore, it can be understood that the first input sub-channel 113211 and the multiple second input sub-channels 113212 are arranged in the same plane. For example, the input channel 11321 includes the first input sub-channel 113211 and two second input sub-channels 113212, and the two second input sub-channels 113212 are parallel to each other and both perpendicular to the first input sub-channel 113211. That is to say, the first direction X is perpendicular to the second direction Y, and the first input sub-channel 113211 and the two second input sub-channels 113212 are all in the same plane.

[0126] For the output channel 11322, the first output sub-channel 113221 extends along the first direction X, and a plurality of second output sub-channels 113222 are arranged at intervals along the first direction X, and the plurality of second output sub-channels 113222 are arranged at intervals and in parallel. Therefore, it can be known that the plurality of second output sub-channels 113222 are located in the same plane, and the first direction X is parallel to this plane. Therefore, it can be understood that the first output sub-channel 113221 and the plurality of second output sub-channels 113222 are arranged in the same plane. For example, the output channel 11322 includes the first output sub-channel 113221 and two second output sub-channels 113222, and the two second output sub-channels 113222 are arranged in parallel and are both perpendicular to the first output sub-channel 113221. That is to say, the first direction X is perpendicular to the second direction Y, and the first output sub-channel 113221 and the two second output sub-channels 113222 are all located in the same plane.

[0127] In this example, the above structural design enables the plurality of second input sub-channels 113212 and the first input sub-channel 113211 to be distributed in the same plane, enables the plurality of second output sub-channels 113222 and the first output sub-channel 113221 to be distributed in the same plane, and enables the heat exchange medium to be less likely to form a large counter-directional resistance during the flow process, which is beneficial to reducing the flow resistance and improving the flow rate of the fluid.

[0128] In some examples, referring to Figure 3 、 Figure 5 and Figure 8 as shown, the heat exchange body 1131 has a sheet-like structure and has a heat exchange surface 11314. The second direction Y is arranged at a second angle β with the plane where the heat exchange surface 11314 is located, and the range of the second angle β is 0° - 180°.

[0129] For the heat exchange component 1130 in the battery 1100, a sheet-like structure is often used. Usually, the heat exchange body 1131 is prepared by using a plate structure. One or two plate surfaces with a larger area of the plate structure can be the heat exchange surface 11314, and the heat exchange flow channel 11311 is opened inside the plate structure and extends inside the plate structure.

[0130] The second direction Y is arranged at a second included angle β with the heat exchange surface 11314. That is to say, the central axis direction of the second input sub-channel 113212 is arranged at a second included angle β with the heat exchange surface 11314, and the central axis direction of the second output sub-channel 113222 is arranged at a second included angle β with the heat exchange surface 11314. The range of the second included angle β is 0°-180°, and the second included angle β can be any value between 0°-180°. For example, the second included angle β can be 0°, 30°, 45°, 90°, 135°, 180°, etc. Among them, when the second included angle β is 0° or 180°, the second input sub-channel 113212 and the second output sub-channel 113222 can be connected to the heat exchange channel 11311 along the direction parallel to the heat exchange channel 11311, and the heat exchange medium can flow into or out of the heat exchange channel 11311 without changing direction, which is beneficial to improving the smoothness of the heat exchange medium flowing between the heat exchange body 1131 and the manifold body 1132. When the second included angle β is 90°, the second input sub-channel 113212 and the second output sub-channel 113222 can be connected to the heat exchange channel 11311 along the direction perpendicular to the heat exchange channel 11311. This design mainly considers that the flow channel inlet 11312 and the flow channel outlet 11313 are generally opened on the plate surface of the plate structure. By adopting a vertical setting method, the manifold body 1132 can be installed on the plate surface of the heat exchange body 1131, and the manifold body 1132 can be connected to the heat exchange surface 11314 and arranged near the edge position of the heat exchange surface 11314, which is beneficial to improving the convenience of assembling the manifold body 1132 and the heat exchange body 1131.

[0131] In this example, the extending directions of the second input sub-channel 113212 and the second output sub-channel 113222 can both form an arbitrary included angle of 0°-180° with the heat exchange surface 11314, making the installation position of the manifold body 1132 relative to the heat exchange body 1131 more diverse and flexible.

[0132] In some examples, referring to Figure 11-21 As shown, the heat exchange assembly 1130 further includes a temperature detection component 1134 connected to the manifold body 1132, and the temperature detection component 1134 is used to detect the temperature in the input channel 11321 and / or the output channel 11322.

[0133] Specifically, the temperature detection component 1134 is used to detect the temperature of the heat exchange medium flowing through the channel of the current collector body 1132. It can be understood that the temperature detection component 1134 has a detection part (i.e., the temperature detection element 11341 described below), and the detection part can be located in the input channel 11321 or the output channel 11322. Thus, when the heat exchange medium flows through the detection part, the detection part can obtain the temperature data of the heat exchange medium, and the detection part can also transmit the obtained temperature data to a control center with functions such as control and analysis. The control center can have functions such as temperature adjustment or warning.

[0134] One or more temperature detection components 1134 can be provided. When multiple temperature detection components 1134 are provided, each temperature detection component 1134 is installed corresponding to the input channel 11321 and the output channel 11322, so that the temperature detection component 1134 can detect the temperature of the heat exchange medium in the input channel 11321 and the output channel 11322, facilitating the analysis of the temperature of the heat exchange medium in the input channel 11321 and the output channel 11322. The temperature detection component 1134 can be fixedly or detachably connected to the current collector body 1132.

[0135] In this example, by installing the temperature detection component 1134 on the current collector body 1132, the temperature of the heat exchange medium flowing through the channel can be detected. Through the obtained temperature data, the temperature of the heat exchange medium in the heat exchange body 1131 can be analyzed and judged. By monitoring the temperature data of the heat exchange medium in the output channel 11322, the temperature inside the battery 1100 can be predicted, facilitating the real-time adjustment of the usage state of the battery 1100 and improving the reliability during the use of the battery 1100.

[0136] In some examples, as shown in Figure 12-17 the heat exchange assembly 1130 further includes a sealing component 1135. An installation hole 113251 is formed on the current collector body 1132. The temperature detection component 1134 is in plug-in fit with the installation hole 113251, and the sealing component 1135 is connected between the temperature detection component 1134 and the hole wall of the installation hole 113251.

[0137] Since the detection part of the temperature detection component 1134 needs to extend into the input channel 11321 or the output channel 11322, an installation hole 113251 needs to be formed on the current collector body 1132 so that the installation hole 113251 penetrates from the outer surface of the current collector body 1132 to the input channel 11321 or the output channel 11322. Then, the temperature detection component 1134 can be plugged into the installation hole 113251, and the detection part (i.e., the temperature detection element 11341 described below) can extend into the input channel 11321 or the output channel 11322.

[0138] A sealing member 1135 is provided between the hole wall of the mounting hole 113251 and the temperature detection component 1134. The sealing member 1135 can adopt structures such as a gasket or a sealing ring, so as to seal the mating surface between the temperature detection component 1134 and the mounting hole 113251 and reduce the risk of leakage.

[0139] In this example, by adding a sealing member 1135 between the mating surfaces of the temperature detection component 1134 and the mounting hole 113251, the heat exchange medium is not easily leaked from this position, reducing the risk of leakage.

[0140] In some examples, referring to Figure 12-17 As shown, the sealing member 1135 includes a plurality of seals 11351. The plurality of seals 11351 are all connected between the temperature detection component 1134 and the hole wall of the mounting hole 113251, and the plurality of seals 11351 are arranged at intervals along the central axis direction of the mounting hole 113251.

[0141] Since the temperature detection component 1134 is inserted into the mounting hole 113251, along the central axis direction of the mounting hole 113251, a certain mating length is formed between the hole wall of the mounting hole 113251 and the outer surface of the temperature detection component 1134. Therefore, a plurality of seals 11351 are arranged along the central axis direction of the mounting hole 113251, and the plurality of seals 11351 are arranged at intervals to form multiple layers of seals, improving the reliability of the seal. The seal 11351 can adopt a sealing ring, and the sealing ring is sleeved on the outer peripheral surface of the temperature detection component 1134 and abuts against the hole wall of the mounting hole 113251.

[0142] In this example, by providing a plurality of seals 11351, the sealing effect is improved.

[0143] In some examples, referring to Figure 12-17 As shown, the temperature detection component 1134 includes a temperature detector 11341, a mounting base 11342, and a locking structure 11343. The temperature detector 11341 is connected to the mounting base 11342, and the temperature detector 11341 extends into the input channel 11321 or the output channel 11322; the locking structure 11343 is respectively connected to the mounting base 11342 and the manifold body 1132 to limit the mounting base 11342 on the manifold body 1132.

[0144] Specifically, the temperature detector 11341 is connected to the manifold body 1132 through the mounting base 11342. The mounting base 11342 plays a role in carrying the temperature detector 11341. The temperature detector 11341 can adopt a temperature sensor, and the temperature sensor is fixedly or detachably connected to the mounting base 11342.

[0145] For example, mounting holes 113251 may be formed in the current collector body 1132. The mounting holes 113251 penetrate from the outer surface of the current collector body 1132 into the input channel 11321 or the output channel 11322. The mounting base 11342 is connected to the current collector body 1132, enabling the temperature detection element 11341 to be inserted into the mounting hole 113251 and extending the temperature detection element 11341 into the channel. The locking structure 11343 may adopt structural forms such as bolt assemblies, limit latches, elastic latches, etc. The locking structure 11343 can at least limit the mounting base 11342 in the direction of the mounting base 11342 detaching from the current collector body 1132. The mounting base 11342 can be inserted or abutted against the current collector body 1132, and a sealing structure can be provided at the connection position between the mounting base 11342 and the current collector body 1132 to reduce the risk of liquid leakage.

[0146] In this example, the mounting base 11342 carrying the temperature detection element 11341 is connected to the current collector body 1132 through the locking structure 11343, realizing the connection and fixation between the mounting base 11342 and the current collector body 1132. The overall structure of the temperature detection component 1134 is simple and compact, and the assembly of the mounting base 11342 and the current collector body 1132 is convenient, which is beneficial to improving the assembly efficiency.

[0147] In some examples, referring to Figure 7-18 As shown, a first limiting structure 11326 is formed on the current collector body 1132; the locking structure 11343 includes a locking body 113431 connected to the mounting base 11342. A second limiting structure 113432 is formed on the locking body 113431. The locking body 113431 can be elastically deformed, enabling the second limiting structure 113432 to move and be inserted and matched with the first limiting structure 11326.

[0148] For example, the mounting base 11342 is inserted into the mounting hole 113251. The number of mounting holes 113251 should be the same as the number of mounting bases 11342. One mounting base 11342 is correspondingly inserted into one mounting hole 113251, and the temperature detection element 11341 is connected to one end of the mounting base 11342 facing the channel, enabling the temperature detection element 11341 to be located in the channel.

[0149] The locking body 113431 can be fixedly or detachably connected to the mounting base 11342. For example, the locking body 113431 can adopt a rod-shaped structure. One end of the locking body 113431 is connected to the mounting base 11342, and the other end of the locking body 113431 can form a second limiting structure 113432. Correspondingly, the first limiting structure 11326 can be formed on the inner wall of the above-mentioned mounting hole 113251. The locking body 113431 can be inserted into the mounting hole 113251. The locking body 113431 undergoes elastic deformation within the mounting hole 113251, and can drive the second limiting structure 113432 thereon to move, so that the first limiting structure 11326 and the second limiting structure 113432 are inserted into each other, realizing the installation of the temperature detection component 1134 and the current collecting body 1132. Of course, relying on external force, the elastic force of the locking body 113431 can also be overcome to separate the first limiting structure 11326 and the second limiting structure 113432, realizing the disassembly of the temperature detection component 1134 and the current collecting body 1132. Or, alternatively, the current collecting body 1132 can form a mounting post 11325 protruding from the surface of the current collecting body 1132. The first limiting structure 11326 can be connected to the outer surface of the mounting post 11325. When the locking body 113431 is connected to the mounting post 11325, the locking body 113431 undergoes elastic deformation and can drive the second limiting structure 113432 thereon to move, so that the first limiting structure 11326 and the second limiting structure 113432 are inserted into each other. The disassembly process is opposite to the installation process and will not be elaborated here.

[0150] The first limiting structure 11326 and the second limiting structure 113432 are inserted and matched to limit the mounting base 11342 from detaching from the current collecting body 1132. Therefore, it can be understood that the insertion direction of the first limiting structure 11326 and the second limiting structure 113432 can be perpendicular to the moving direction of the mounting base 11342 relative to the mounting hole 113251. When the first limiting structure 11326 and the second limiting structure 113432 are inserted into each other, the mounting base 11342 and the current collecting body 1132 are limited and fixed. When the first limiting structure 11326 and the second limiting structure 113432 are separated from each other, the mounting base 11342 can be disassembled and separated from the current collecting body 1132.

[0151] In this example, the mounting base 11342 is connected to the locking body 113431 and bears the temperature detection component 11341 to be connected to the current collecting body 1132. The locking body 113431 undergoes elastic deformation, so that the second limiting structure 113432 and the first limiting structure 11326 on the locking body 113431 can be inserted and matched and separated, making the installation and disassembly of the mounting base 11342 and the current collecting body 1132 more convenient.

[0152] In some examples, refer toFigure 7-17 As shown, the first limiting structure 11326 is a groove structure, and the second limiting structure 113432 is a convex structure; or, the first limiting structure 11326 is a convex structure, and the second limiting structure 113432 is a groove structure, and the convex structure and the groove structure are inserted and matched with each other.

[0153] For example, the first limiting structure 11326 is a groove structure formed on the outer surface of the mounting post 11325, and the second limiting structure 113432 is a convex structure protruding from the locking body 113431, and the convex structure and the groove structure are inserted and matched with each other.

[0154] Specifically, since the locking body 113431 can be elastically deformed, when the locking body 113431 abuts against the outer surface of the mounting seat 11342, the locking body 113431 can form a squeezing force on the outer surface of the mounting seat 11342, so that when the convex structure and the groove structure are opposite to each other, the elastic force of the locking body 113431 is released, and the locking body 113431 deforms, so that the convex structure moves to a position where it is inserted into the groove structure. The convex structure can have various shapes. For example, the convex structure can adopt a conical convex structure with a conical outer convex end.

[0155] Optionally, the first limiting structure 11326 is a convex structure protruding from the outer surface of the mounting post 11325, and the second limiting structure 113432 is a groove structure formed on the locking body 113431, and the convex structure and the groove structure are inserted and matched with each other.

[0156] Specifically, since the locking body 113431 can be elastically deformed, when the locking body 113431 abuts against the outer surface of the mounting seat 11342, the locking body 113431 can form a squeezing force on the outer surface of the mounting seat 11342, so that when the convex structure and the groove structure abut against each other, the locking body 113431 elastically deforms, so that the convex structure can be opposite to the groove structure, the elastic force of the locking body 113431 is released, and the locking body 113431 deforms, so that the groove structure moves to a position where it is inserted into the convex structure. The convex structure can have various shapes. For example, the convex structure can adopt a conical convex structure with a conical outer convex end.

[0157] In this example, the structures of the first limiting structure 11326 and the second limiting structure 113432 are simple and easy to manufacture, and the elastic deformation of the locking body 113431 can improve the reliability of the insertion limit between the first limiting structure 11326 and the second limiting structure 113432.

[0158] In some examples, refer to Figure 7-17As shown, there are multiple locking bodies 113431. The multiple locking bodies 113431 are arranged around a preset axis in a circumferential and spaced manner. A second limiting structure 113432 is formed on each locking body 113431. There are multiple first limiting structures 11326 corresponding to the second limiting structures 113432. The multiple first limiting structures 11326 are arranged around the preset axis in a circumferential and spaced manner. Each second limiting structure 113432 is inserted and cooperated with each first limiting structure 11326 in a direction perpendicular to the preset axis.

[0159] Specifically, the locking body 113431 can be extended in a rod shape. The extending direction of the locking body 113431 is parallel to the preset axis. One end of the locking body 113431 is connected to the mounting seat 11342. A second limiting structure 113432 is formed on the end of the locking body 113431 far from the mounting seat 11342. The multiple locking bodies 113431 are arranged around the preset axis in a circumferential and spaced manner. The preset axis can be the central axis of the mounting hole 113251 or the central axis of the mounting post 11325, so that the locking structure 11343 forms a claw-shaped locking structure. The end of the locking structure with the second limiting structure 113432 can elastically contract towards the direction of the central axis of the mounting hole 113251 and can also expand outwards towards a direction away from the preset axis, so as to achieve the purpose of inserting or disengaging the second limiting structure 113432 from the first limiting structure 11326.

[0160] In this example, by providing multiple locking bodies 113431, the reliability of the connection between the mounting seat 11342 and the manifold body 1132 can be improved.

[0161] In some examples, referring to Figure 7-9 and Figure 11-17 as shown, a mounting post 11325 is formed on the manifold body 1132. A mounting hole 113251 is formed in the mounting post 11325 along a direction parallel to the preset axis. The mounting hole 113251 penetrates into the input channel 11321 or the output channel 11322. The mounting seat 11342 and the temperature detection element 11341 are both inserted and cooperated with the mounting hole 113251. The first limiting structure 11326 is formed on the outer cylindrical surface of the mounting post 11325.

[0162] Specifically, the mounting post 11325 protrudes from the outer wall surface of the manifold body 1132. The mounting post 11325 has a central axis. The mounting hole 113251 is formed in the mounting post 11325 along this central axis. The mounting hole 113251 can be the same as the mounting hole 113251 formed inside the manifold body 1132 mentioned above. The mounting hole 113251 penetrates from the outer end face of the mounting post 11325 into the input channel 11321 or the output channel 11322.

[0163] The first limiting structure 11326 is formed on the outer cylindrical surface of the mounting post 11325. For example, the second limiting structure 113432 is a convex structure, and the first limiting structure 11326 is a groove structure. A plurality of groove structures are arranged around and at intervals along the central axis direction of the mounting hole 113251. A plurality of locking bodies 113431 are arranged around and at intervals along the central axis of the mounting post 11325, and the convex structures on each locking body 113431 are arranged corresponding to each groove structure, so that a convex structure is inserted and matched with a groove structure correspondingly.

[0164] In this example, by providing the mounting post 11325 and forming the second limiting structure 113432 on the outer cylindrical surface of the mounting post 11325, the locking body 113431 can be connected to the mounting post 11325 from the outside of the mounting post 11325, making the connection between the locking body 113431 and the mounting post 11325 more convenient.

[0165] In some examples, referring to Figure 6-10 As shown, the first input sub-channel 113211 forms a first channel port 113213 on the manifold body 1132, and the first output sub-channel 113221 forms a second channel port 113223 on the manifold body 1132; the heat exchange assembly 1130 includes a plurality of joint components 1133 all connected to the manifold body 1132, and a part of the joint components 1133 are arranged corresponding to the first channel port 113213 and are communicated with the first input sub-channel 113211; another part of the joint components 1133 are arranged corresponding to the second channel port 113223 and are communicated with the first output sub-channel 113221.

[0166] Specifically, the joint component 1133 generally adopts a standard part, and the joint component 1133 is used to conveniently connect the manifold body 1132 with external structural components. The joint component 1133 and the manifold body 1132 can be connected in a detachable manner. For example, the joint component 1133 and the manifold body 1132 are connected by a threaded connection method, and a sealing member is added at the connection position between the joint component 1133 and the manifold body 1132 to reduce the risk of leakage between the joint component 1133 and the manifold body 1132.

[0167] The joint component 1133 can be arranged to extend in a columnar shape. A cavity is formed inside the joint component 1133. Two extending ends of the joint component 1133 respectively form orifices communicating with the cavity. The joint component 1133 can be paired with the first channel orifice 113213 and inserted into the input channel 11321 (specifically, inside the first input sub-channel 113211). The joint component 1133 can also be paired with the second channel orifice 113223 and inserted into the output channel 11322 (specifically, inside the first output sub-channel 113221). Structures such as pairing flanges can be formed on the joint component 1133 to facilitate the installation and disassembly of the joint component 1133 and external pipe fittings, etc. The number of joint components 1133 should be equal to the sum of the numbers of the first channel orifices 113213 and the second channel orifices 113223.

[0168] One end of the joint component 1133 far from the first channel orifice 113213 or far from the second channel orifice 113223 can be connected to the joint protection cap 1136. When heat exchange media are not input and output, the joint protection cap 1136 can seal the open orifice of the joint component 1133, playing a sealing role.

[0169] In this example, by arranging multiple joint components 1133, the joint components 1133 are connected to the manifold body 1132 and respectively communicate with the input channel 11321 and the output channel 11322, thus facilitating the connection between external components and the manifold body 1132 through the joint components 1133 and making the assembly and disassembly of the heat exchange component 1130 and external components more convenient.

[0170] In some examples, referring to Figure 6 and Figure 10 as shown, a first positioning structure 11331 is formed on each joint component 1133. Second positioning structures 11323 are respectively formed on the channel walls of the first input sub-channel 113211 and the channel walls of the first output sub-channel 113221. The first positioning structure 11331 is connected to the second positioning structure 11323 to limit the rotation of the joint component 1133.

[0171] The joint component 1133 and the current collector body 1132 are usually connected by insertion. The insertion end of the joint component 1133 is usually cylindrical, and it is easy to rotate when inserted into the current collector body 1132. When welding is performed between the joint component 1133 and the current collector body 1132, the joint component 1133 is likely to rotate relative to the current collector body 1132 during the welding process. Therefore, a first positioning structure 11331 is provided on the joint component 1133, and a second positioning structure 11323 is provided on the channel wall of the input channel 11321. When the joint component 1133 is inserted into the input channel 11321, the first positioning structure 11331 is connected to the second positioning structure 11323, thereby restricting the rotation of the joint component 1133 relative to the current collector body 1132 and improving the connection reliability between the mating surfaces of the joint component 1133 and the current collector body 1132.

[0172] The first positioning structure 11331 can be an inwardly concave structure formed on the outer surface of the joint component 1133. For example, if the outer surface of the joint component 1133 is a cylindrical surface, the first positioning structure 11331 can be a cut surface formed by inwardly concave towards the central axis direction of the joint component 1133. The second positioning structure 11323 can be an outwardly convex structure formed on the channel wall. For example, if the channel wall is a cylindrical hole wall, the second positioning structure 11323 can be a plane formed by outwardly convex towards the central axis direction of the channel. After the joint component 1133 is inserted into the first input sub-channel 113211 or the first output sub-channel 113221, the above-mentioned inwardly concave cut surface fits with the outwardly convex plane, thereby restricting the rotation of the joint component 1133 in the central axis direction relative to the current collector body 1132, facilitating subsequent welding and fixing between the joint component 1133 and the current collector body 1132.

[0173] In this example, by providing the first positioning structure 11331 and the second positioning structure 11323, the joint component 1133 is accurately positioned relative to the current collector body 1132 and is not prone to rotate relative to the current collector body 1132, which is beneficial to improving the connection reliability between the joint component 1133 and the current collector body 1132.

[0174] In some examples, as shown in Figure 7-10 the joint component 1133 and the current collector body 1132 are fixedly or detachably connected.

[0175] After the joint component 1133 is inserted into the current collector body 1132, it is necessary to fix the joint component 1133 and the current collector body 1132. The joint component 1133 and the current collector body 1132 can be fixedly connected, for example, by welding, bonding, etc. The joint component 1133 can also be detachably connected to the current collector body 1132, for example, by bolt connection, snap connection, etc.

[0176] In this example, the connection between the joint component 1133 and the manifold body 1132 is flexible and convenient, and can be adaptively selected according to the application scenario.

[0177] In some examples, referring to Figure 6 and Figure 10 As shown, a first stop structure 11332 is formed on each joint component 1133, and second stop structures 11324 are respectively formed on the channel walls of the first input sub-channel 113211 and the first output sub-channel 113221. The first stop structure 11332 abuts against the second stop structure 11324 to limit the movement of the joint component 1133 relative to the manifold body 1132 into the first input sub-channel 113211 or the first output sub-channel 113221.

[0178] Specifically, the first stop structure 11332 can be a protrusion formed by outward convexity on the outer surface of the joint component 1133. Correspondingly, the second stop structure 11324 can be a protrusion formed by outward convexity on the channel wall. After the joint component 1133 is inserted into the channel (referring to the first input sub-channel 113211 or the first output sub-channel 113221), the two protrusions can abut against each other, thereby restricting the further movement of the joint component 1133 into the channel, so as to achieve the purpose of restricting the insertion depth of the joint component 1133 relative to the manifold body 1132.

[0179] After the joint component 1133 and the manifold body 1132 are assembled, the joint component 1133 and the manifold body 1132 can be welded and fixed.

[0180] In this example, by setting the first stop structure 11332 and the second stop structure 11324, the purpose of restricting the insertion depth of the joint component 1133 into the manifold body 1132 is achieved, and the positioning accuracy of the joint component 1133 is improved.

[0181] In some examples, referring to Figure 6 and Figure 9 As shown, the manifold body 1132 includes a first sub-manifold 11327, a second sub-manifold 11328, and a connecting arm 11329 connecting the first sub-manifold 11327 and the second sub-manifold 11328. An input channel 11321 is formed in the first sub-manifold 11327, and an output channel 11322 is formed in the second sub-manifold 11328.

[0182] Specifically, both the first subset fluid 11327 and the second subset fluid 11328 can adopt a block structure, and the outer shapes of both can be rectangular parallelepiped-shaped. The connecting arm 11329 can adopt a plate structure, and the connecting arm 11329 can be detachably connected to the first subset fluid 11327 and the second subset fluid 11328 respectively. Alternatively, the connecting arm 11329, the first subset fluid 11327, and the second subset fluid 11328 can be integrally formed structures. One or more input channels 11321 that are spaced apart and arranged in parallel can be opened inside the first subset fluid 11327. Similarly, one or more output channels 11322 that are spaced apart and arranged in parallel can be opened inside the second subset fluid 11328.

[0183] In this example, the structure of the manifold body 1132 adopts a structural form in which the first subset fluid 11327 and the second subset fluid 11328 are connected by the connecting arm 11329, which is beneficial to reducing the overall weight of the manifold body 1132.

[0184] In some examples, referring to Figure 4 and Figure 5 As shown, the heat exchange body 1131 includes a first heat exchange plate 11315 and a second heat exchange plate 11316. The first heat exchange plate 11315 has a first set of opposite faces, and the second heat exchange plate 11316 has a second set of opposite faces. At least one of the first set of opposite faces and the second set of opposite faces is formed with a receiving groove structure 11317. The first set of opposite faces and the second set of opposite faces are attached to each other to jointly enclose and form a heat exchange flow path 11311. The manifold body 1132 is connected to the first heat exchange plate 11315 or the second heat exchange plate 11316.

[0185] The heat exchange body 1131 is integrally in a plate shape. Specifically, the heat exchange body 1131 is formed by the relative attachment and connection of the first heat exchange plate 11315 and the second heat exchange plate 11316. The plate surface of the first heat exchange plate 11315 opposite to the second heat exchange plate 11316 is the first set of opposite faces, and the plate surface of the second heat exchange plate 11316 opposite to the first heat exchange plate 11315 is the second set of opposite faces. A receiving groove structure 11317 can be opened on the first set of opposite faces, and a receiving groove structure 11317 can also be correspondingly opened on the second set of opposite faces. When the first set of opposite faces and the second set of opposite faces are attached to each other, the openings of the receiving groove structures 11317 are closed to form the heat exchange flow path 11311.

[0186] For the current collector body 1132, the current collector body 1132 can be connected to the first heat exchange plate 11315 or the second heat exchange plate 11316. Therefore, the flow port can be opened on the first heat exchange plate 11315 or the second heat exchange plate 11316. Reinforcing plates can also be added at the positions of the flow inlet and the flow outlet, so that the reinforcing plates are respectively connected to the current collector body 1132 and the heat exchange body 1131, thereby improving the connection reliability between the current collector body 1132 and the heat exchange body 1131.

[0187] In this example, the heat exchange body 1131 is formed by the first heat exchange plate 11315 and the second heat exchange plate 11316 being attached to each other, with a simple structure and being easy to manufacture.

[0188] Please refer to Figure 2 、 Figure 3 and Figure 18-23 As shown, the battery 1100 further includes a box body 1110. The box body 1110 has an accommodation space 1113. The battery cells 1120 are accommodated in the box body 1110. The heat exchange assembly 1130 can be accommodated in the accommodation space 1113 of the box body 1110, and is arranged close to or in contact with the battery cells 1120 to exchange heat for the battery cells 1120; or, the heat exchange assembly 1130 can also be used to exchange heat for the box body 1110 or other components or substances inside the box body 1110, and the heat exchange assembly 1130 can also be located outside the box body 1110. Among them, the box body 1110 is used to provide the accommodation space 1113 for the battery cells 1120, and the box body 1110 can adopt various structures.

[0189] Combined with Figure 2 and Figure 3 As shown, the box body 1110 can include a first part 1111 and a second part 1112. The first part 1111 and the second part 1112 cover each other, and the first part 1111 and the second part 1112 jointly define the accommodation space 1113 for accommodating the battery cells 1120. The second part 1112 can be a hollow structure with one end open, and an inner cavity is formed inside the second part 1112. The first part 1111 can be a plate-like structure, and the first part 1111 covers the open side of the second part 1112, so that the first part 1111 and the second part 1112 jointly define the accommodation space 1113. The first part 1111 and the second part 1112 can also both be hollow structures with one side open, and the open side of the first part 1111 covers the open side of the second part 1112. Of course, the box body 1110 formed by the first part 1111 and the second part 1112 can be of various shapes, such as a cylinder, a cuboid, etc.

[0190] Among them, it should be noted that the heat exchange component 1130 can be arranged in the accommodation space 1113, and is connected to or arranged close to the battery cell 1120, so that heat exchange can occur between the heat exchange component 1130 and the battery cell 1120. The heat exchange component 1130 can also exchange heat with the box body 1110. In addition, when a flowing cooling medium is accommodated in the accommodation space 1113, the heat exchange component 1130 can also exchange heat with the cooling medium. In addition, the heat exchange component 1130 can also be installed outside the box body 1110 to exchange heat with the box body 1110.

[0191] In some embodiments, referring to Figure 18-23 As shown, the heat exchange body 1131 has a heat exchange pair part 11318 extending outside the box body 1110, the heat exchange flow channel 11311 extends into the heat exchange pair part 11318, and the current collector body 1132 is connected to the heat exchange pair part 11318.

[0192] Specifically, in combination with Figure 18-23 As shown, the heat exchange body 1131 has at least two parts. One part is the heat exchange pair part 11318, which is located outside the accommodation space 1113 of the box body 1110. The heat exchange flow channel 11311 extends into the heat exchange pair part 11318. The heat exchange pair part 11318 extends outside the box body 1110 and does not occupy the volume of the accommodation space 1113 of the box body 1110. Another part of the heat exchange body 1131 can be located in the accommodation space 1113 to exchange heat with the heat exchange body 1131 by being close to or in contact with it. The heat exchange body 1131 is connected to the box body 1110. The heat exchange body 1131 can be integrally formed with the box body 1110. For example, during the assembly of the box body 1110, the heat exchange body 1131 is assembled on the box body 1110 so that the heat exchange body 1131 and the box body 1110 form an integral structure, and the heat exchange body 1131 and the box body 1110 can be fixed by welding. Optionally, a detachable and washable connection method can also be adopted between the heat exchange body 1131 and the box body 1110. For example, the heat exchange body 1131 and the box body 1110 are connected by a bolt assembly, a buckle assembly, etc.

[0193] The current collector body 1132 is connected to the heat exchange mating part 11318. It can be understood that the heat exchange flow channel 11311 extends into the heat exchange mating part 11318, and the flow channel inlet 11312 and the flow channel outlet 11313 are both provided on the heat exchange mating part 11318. The connection between the current collector body 1132 and the heat exchange mating part 11318 can be fixed or detachable. For example, it can be connected by welding, riveting, or bolt connection, such as brazing. A sealing structure can be provided at the mating connection position between the current collector body 1132 and the heat exchange mating part 11318 to enhance the sealing performance of the mating position between the current collector body 1132 and the heat exchange mating part 11318. An input channel 11321 and an output channel 11322 are respectively provided inside the current collector body 1132. The independent setting of the input channel 11321 and the output channel 11322 means that there is no connection between the input channel 11321 and the output channel 11322. The input channel 11321 and the output channel 11322 are both connected to the heat exchange flow channel 11311. The heat exchange medium is input into the heat exchange flow channel 11311 through the input channel 11321, and the heat exchange medium in the heat exchange flow channel 11311 is output to the external space through the output channel 11322, so that the heat exchange medium circulates in the heat exchange flow channel 11311.

[0194] Regarding the connection between the current collector body 1132 and the box body 1110, the current collector body 1132 and the box body 1110 can be connected. For example, the current collector body 1132 abuts against or is inserted and mated with the box body 1110. The current collector body 1132 and the box body 1110 can also be fixedly connected through a locking component, etc. The current collector body 1132 and the box body 1110 can also be fixedly connected by welding; or, the current collector body 1132 may not be connected to the box body 1110. For example, the current collector body 1132 and the box body 1110 are spaced apart.

[0195] In this example, the heat exchange body 1131 is connected to the box body 1110, and a heat exchange mating part 11318 is formed outside the box body 1110. The current collector body 1132 is connected to the heat exchange mating part 11318, so that the input channel 11321 and the output channel 11322 in the current collector body 1132 are both connected to the heat exchange flow channel 11311 inside the heat exchange body 1131; the current collector body 1132 is arranged outside the box body 1110 and does not occupy the space volume of the accommodation space 1113 inside the box body 1110, so that the battery cell 1120 can have a larger volume, which is beneficial to improving the energy density of the battery 1100; in addition, the current collector body 1132 integrally arranges the input channel 11321 and the output channel 11322, which is beneficial to reducing the mating position and mating area between the current collector body 1132 and the heat exchange body 1131, and is beneficial to reducing the leakage risk between the current collector body 1132 and the heat exchange body 1131.

[0196] In some examples, with reference to Figure 18-23 as shown, the current collector body 1132 is fixedly connected or detachably connected to the box body 1110.

[0197] Specifically, the current collector body 1132 is connected to the heat exchange pairing part 11318. At the same time, the current collector body 1132 is also connected to the box body 1110. The current collector body 1132 and the box body 1110 can be fixedly connected, for example, by welding; the current collector body 1132 and the box body 1110 can also be detachably connected, for example, by bolt connection, buckle connection, etc.

[0198] For the connection between the current collector body 1132 and the heat exchange pairing part 11318, the current collector body 1132 and the heat exchange pairing part 11318 can be only in contact connection. Through the connection between the current collector body 1132 and the box body 1110, the current collector body 1132 and the heat exchange pairing part 11318 are relatively fixed; or, the current collector body 1132 and the heat exchange pairing part 11318 can be fixedly connected, for example, by welding; the current collector body 1132 and the heat exchange pairing part 11318 are detachably connected, for example, by bolt connection, buckle connection, etc.

[0199] In this example, connecting the current collector body 1132 to the box body 1110 can improve the connection stability between the current collector body 1132, the box body 1110 and the heat exchange body 1131.

[0200] In some examples, with reference to Figure 22 and Figure 23 as shown, the box body 1110 includes a box wall 1114. An installation groove 11141 is formed on the outer wall surface of the box wall 1114. The groove wall of the installation groove 11141 penetrates through to the surface of the heat exchange body 1131, and at least a part of the current collector body 1132 is inserted into the installation groove 11141.

[0201] Specifically, the box body 1110 has a box wall 1114. The wall surface of the box wall 1114 located in the accommodation space 1113 is the inner wall surface of the box body 1110, and the wall surface of the box wall 1114 exposed to the external space is called the outer wall surface of the box body 1110. The box body 1110 may include a bottom wall, a top wall and side walls. The side walls are located between the top wall and the bottom wall of the box body 1110. The box body 1110 may include a plurality of side walls. The plurality of side walls are sequentially connected in a surrounding manner. The plurality of box walls 1114 and the bottom wall and the top wall jointly enclose to form the accommodation space 1113; when the heat exchange assembly 1130 is connected to the bottom wall of the box body 1110, the box wall 1114 in this example can be understood as the side wall of the box body 1110.

[0202] An installation groove 11141 is formed on the outer wall surface of the box wall 1114. The depth direction of the installation groove 11141 is along the thickness direction of the box wall 1114, so that one side wall of the installation groove 11141 close to the heat exchange body 1131 penetrates through to the surface of the heat exchange body 1131. The current collecting body 1132 is in plug-in fit with the installation groove 11141. At least a part of the current collecting body 1132 is inserted into the installation groove 11141, that is, the current collecting body 1132 can be partially inserted into the installation groove 11141. The current collecting body 1132 also has a part located outside the installation groove 11141. Or, the current collecting body 1132 is integrally incorporated into the interior of the installation groove 11141. It should be noted that the part of the heat exchange body 1131 located at the position of the installation groove 11141 can be regarded as the heat exchange assembly part 11318.

[0203] The installation groove 11141 can be a blind groove. That is to say, the bottom of the installation groove 11141 does not penetrate through to the accommodation space 1113 as a whole, so there is no need to consider the sealing problem between the bottom of the installation groove 11141 and the accommodation space 1113, which simplifies the mating relationship. The depth of the installation groove 11141 can be adaptively designed according to the length of the current collecting body 1132. The installation groove 11141 can also be a through groove. That is to say, the bottom of the installation groove 11141 penetrates through to the accommodation space 1113. When the length of the current collecting body 1132 along the thickness direction of the box body 1110 is relatively large and there is redundant space at the position of the bottom of the accommodation space 1113 close to the installation groove 11141, considering the full utilization of space, the current collecting body 1132 can be inserted into the installation groove 11141 and partially extend out into the accommodation space 1113.

[0204] In this example, by providing the installation groove 11141, at least a part of the current collecting body 1132 can be inserted into the installation groove 11141. Then, the part of the current collecting body 1132 exposed outside the outer wall surface of the box body 1110 is relatively reduced, reducing the occupied space of the current collecting body 1132 outside the box body 1110. The box wall 1114 has the function of accommodating the current collecting body 1132, improving the space utilization rate of the assembly of the heat exchange component 1130 and the box body 1110, reducing the occupied space outside the battery 1100, and making the overall structure more compact.

[0205] In a specific embodiment, refer to Figure 4-17As shown, the battery 1100 includes battery cells 1120 and a heat exchange component 1130. The heat exchange component 1130 is used for heat exchange with the battery cells 1120. The heat exchange component 1130 includes a heat exchange body 1131 and a current collecting body 1132. A heat exchange flow channel 11311 is formed inside the heat exchange body 1131, and the heat exchange flow channel 11311 is used for flowing a heat exchange medium. Independent input channels 11321 and output channels 11322 are respectively formed inside the current collecting body 1132. The input channel 11321 includes a first input sub-channel 113211 and at least one second input sub-channel 113212 connected to the first input sub-channel 113211. The output channel 11322 includes a first output sub-channel 113221 and at least one second output sub-channel 113222 connected to the first output sub-channel 113221. The current collecting body 1132 is connected to the heat exchange body 1131, and the second input sub-channel 113212 and the second output sub-channel 113222 are respectively connected and communicated with the heat exchange flow channel 11311. There is one second input sub-channel 113212 and at least two second output sub-channels 113222; or there are at least two second input sub-channels 113212 and one second output sub-channel 113222; or there are at least two second input sub-channels 113212 and at least two second output sub-channels 113222. When there are multiple second input sub-channels 113212, the multiple second input sub-channels 113212 are spaced apart and arranged in parallel; and / or when there are multiple second output sub-channels 113222, the multiple second output sub-channels 113222 are spaced apart and arranged in parallel. The heat exchange component 1130 further includes a temperature detection component 1134 connected to the current collecting body 1132. The temperature detection component 1134 is used for detecting the temperature inside the input channel 11321 and / or the output channel 11322. The heat exchange component 1130 further includes a sealing component 1135. An installation hole 113251 is formed on the current collecting body 1132. The temperature detection component 1134 is inserted and matched with the installation hole 113251, and the sealing component 1135 is connected between the temperature detection component 1134 and the hole wall of the installation hole 113251. The sealing component 1135 includes a plurality of seals 11351. The plurality of seals 11351 are all connected between the temperature detection component 1134 and the hole wall of the installation hole 113251, and the plurality of seals 11351 are spaced apart along the central axis direction of the installation hole 113251. The temperature detection component 1134 includes a temperature detector 11341, a mounting base 11342, and a locking structure 11343. The temperature detector 11341 is connected to the mounting base 11342, and the temperature detector 11341 extends out into the input channel 11321 or the output channel 11322;The locking structure 11343 is respectively connected to the mounting base 11342 and the manifold body 1132, so that the mounting base 11342 is limited on the manifold body 1132; a first limiting structure 11326 is formed on the manifold body 1132; the locking structure 11343 includes a locking body 113431 connected to the mounting base 11342, a second limiting structure 113432 is formed on the locking body 113431, the locking body 113431 can be elastically deformed, so that the second limiting structure 113432 can move to be inserted and matched with the first limiting structure 11326; there are multiple locking bodies 113431, the multiple locking bodies 113431 are arranged around a preset axis in a circumferential and spaced manner, and a second limiting structure 113432 is formed on each locking body 113431; the first limiting structure 11326 is provided with multiple corresponding to the second limiting structure 113432, the multiple first limiting structures 11326 are arranged around the preset axis in a circumferential and spaced manner, and each second limiting structure 113432 is correspondingly inserted and matched with each first limiting structure 11326 in a direction perpendicular to the preset axis; a mounting post 11325 is formed on the manifold body 1132, a mounting hole 113251 is formed in the mounting post 11325 along a direction parallel to the preset axis, the mounting hole 113251 penetrates into the input channel 11321 or the output channel 11322, the mounting base 11342 and the temperature detection member 11341 are both inserted and matched with the mounting hole 113251, and the first limiting structure 11326 is formed on the outer cylindrical surface of the mounting post 11325; a first input sub-channel 113211 forms a first channel port 113213 on the manifold body 1132, and a first output sub-channel 113221 forms a second channel port 113223 on the manifold body 1132; the heat exchange assembly 1130 includes a plurality of joint components 1133 all connected to the manifold body 1132, and a part of the joint components 1133 are arranged to match the first channel port 113213 and communicate with the first input sub-channel 113211; another part of the joint components 1133 are arranged to match the second channel port 113223 and communicate with the first output sub-channel 113221.;

[0206] In some examples, with reference to Figure 1 As shown, an example of an electrical device is disclosed. The electrical device includes the battery 1100 in any of the above examples, and the battery 1100 is used to provide electrical energy.

[0207] The electrical device in this example includes but is not limited to: mobile phones, portable devices, laptop computers, battery cars, electric vehicles, ships, spacecrafts, electric toys, and electric tools, etc. The battery 1100 in any of the above examples can be separately installed in the electrical device.

[0208] The example of the electrical device in the present application is based on the example of the battery 1100 described above. The example of the electrical device includes all the technical effects of the example of the battery 1100 described above, which will not be described in detail.

[0209] The above are only preferred embodiments of the present application, and only specifically describe the technical principles of the present application. These descriptions are only for explaining the principles of the present application and cannot be interpreted as limiting the scope of protection of the present application in any way. Based on the explanation here, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application, and other specific implementation methods of the present application that can be associated with the technicians in this field without creative work, should be included in the scope of protection of the present application.

Claims

1. A battery, characterized in that: include: Battery cells; A heat exchange component is used for heat exchange with the battery cell, the heat exchange component includes a heat exchange body and a current collecting body, a heat exchange flow channel is formed inside the heat exchange body, and the heat exchange flow channel is used to circulate a heat exchange medium; independent input channels and output channels are respectively formed inside the current collecting body, the input channel includes a first input sub-channel and at least one second input sub-channel connected to the first input sub-channel, and the output channel includes a first output sub-channel and at least one second output sub-channel connected to the first output sub-channel; the current collecting body is connected to the heat exchange body, and the second input sub-channel and the second output sub-channel are respectively connected to the heat exchange flow channel.

2. The battery according to claim 1, characterized in that The second input subchannel is provided with one, and the second output subchannel is provided with at least two; or The second input subchannels are provided with at least two, and the second output subchannel is provided with one; or There are at least two second input sub-channels, and there are at least two second output sub-channels.

3. The battery according to claim 1 or 2, characterized in that In the case where a plurality of second input sub-channels are provided, the plurality of second input sub-channels are spaced apart from each other and arranged in parallel; and / or In the case that a plurality of second output sub-channels are provided, the plurality of second output sub-channels are spaced apart from each other and arranged in parallel.

4. The battery according to claim 3, characterized in that The first input sub-channel and the first output sub-channel are both extended along a first direction, the second input sub-channel and the second output sub-channel are both extended along a second direction, the first direction and the second direction are set at a first angle, and the range of the first angle is 0°-180°.

5. The battery according to claim 4, characterized in that A plurality of the second input sub-channels are arranged at intervals along the first direction; and / or A plurality of the second output sub-channels are arranged at intervals along the first direction.

6. The battery according to claim 4, characterized in that The heat exchange body is in a sheet-like structure and has a heat exchange surface. The second direction is arranged at a second angle with the plane where the heat exchange surface is located. The range of the second angle is 0°-180°.

7. The battery according to claim 6, characterized in that The second angle is 90°.

8. The battery according to claim 1 or 2, characterized in that: The heat exchange assembly further includes a temperature detection component connected to the current collecting body, and the temperature detection component is used to detect the temperature in the input channel and / or the output channel.

9. The battery according to claim 8, characterized in that The heat exchange assembly further includes a sealing component. The current collecting body is provided with a mounting hole. The temperature detection component is plug-fitted into the mounting hole. The sealing component is connected between the temperature detection component and the hole wall of the mounting hole.

10. The battery according to claim 9, characterized in that The sealing component includes a plurality of sealing members, each of which is connected between the temperature detection component and the hole wall of the mounting hole, and the plurality of sealing members are arranged at intervals along the central axis direction of the mounting hole.

11. The battery according to claim 8, characterized in that The temperature detection component includes a temperature detection piece, a mounting seat and a locking structure. The temperature detection piece is connected to the mounting seat and extends outward into the input channel or the output channel. The locking structure is respectively connected to the mounting seat and the current collecting body so that the mounting seat is limited to the current collecting body.

12. The battery according to claim 11, characterized in that A first limiting structure is formed on the current collecting body; the locking structure includes a locking body connected to the mounting seat, and a second limiting structure is formed on the locking body. The locking body can be elastically deformed so that the second limiting structure can move to be plugged and matched with the first limiting structure.

13. The battery according to claim 12, characterized in that The first limiting structure is a groove structure, and the second limiting structure is a protrusion structure; or, the first limiting structure is a protrusion structure, and the second limiting structure is a groove structure, and the protrusion structure is plugged into and matched with the groove structure.

14. The battery according to claim 12, characterized in that There are multiple locking bodies, which are arranged around a preset axis and spaced apart from each other, and each locking body is formed with the second limiting structure; there are multiple first limiting structures corresponding to the second limiting structures, which are arranged around the preset axis and spaced apart from each other, and each second limiting structure is plugged into and matched with each first limiting structure in a direction perpendicular to the preset axis.

15. The battery according to claim 14, characterized in that A mounting column is formed on the current collecting body, and a mounting hole is opened in the mounting column along a direction parallel to the preset axis. The mounting hole passes through the input channel or the output channel, and the mounting seat and the temperature detection component are both plugged into the mounting hole. The first limiting structure is formed on the outer cylindrical surface of the mounting column.

16. The battery according to claim 1 or 2, characterized in that: The first input sub-channel forms a first channel opening on the collecting body, and the first output sub-channel forms a second channel opening on the collecting body; the heat exchange component includes a plurality of joint components that are all connected to the collecting body, wherein a portion of the joint components matches the first channel opening and is connected to the first input sub-channel; another portion of the joint components matches the second channel opening and is connected to the first output sub-channel.

17. The battery according to claim 16, characterized in that A first positioning structure is formed on each of the joint components, and a second positioning structure is formed on the channel wall of the first input sub-channel and the channel wall of the first output sub-channel respectively. The first positioning structure is connected to the second positioning structure to limit the rotation of the joint component.

18. The battery according to claim 16, characterized in that The joint component is fixedly or detachably connected to the current collecting body.

19. The battery according to claim 1 or 2, characterized in that: The current collecting body includes a first subset current collecting body, a second subset current collecting body, and a connecting arm connected between the first subset current collecting body and the second subset current collecting body. The input channel is formed in the first subset current collecting body, and the output channel is formed in the second subset current collecting body.

20. The battery according to claim 1 or 2, characterized in that: The heat exchange body includes a first heat exchange plate and a second heat exchange plate, the first heat exchange plate has a first group of opposite faces, the second heat exchange plate has a second group of opposite faces, at least one of the first group of opposite faces and the second group of opposite faces is formed with a accommodating groove structure, the first group of opposite faces and the second group of opposite faces are fitted together to jointly enclose the heat exchange flow channel, and the collecting body is connected to the first heat exchange plate or the second heat exchange plate.

21. An electrical device, characterized in that: The invention comprises a battery as claimed in any one of claims 1 to 20, wherein the battery is used to provide electrical energy.

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