Battery devices, electrical devices and energy storage devices

Abstract

This application provides a battery device, an electrical device, and an energy storage device, belonging to the field of battery technology. The battery device includes a housing and individual battery cells, with the housing accommodating the cells. The housing includes a first beam and a heat exchange plate, the heat exchange plate exchanging heat with the individual battery cells, and the first beam fixedly connected to the heat exchange plate. The heat exchange plate has a first port and a heat exchange channel, the first port communicating with the heat exchange channel. The first beam includes a first beam body and a first sealing portion, the first beam body limiting the position of the individual battery cells, and the first sealing portion sealing the first port. That is, the first beam is an expansion beam, adjacent to the heat exchange plate in the battery device, facilitating the placement of the first sealing portion on the expansion beam to seal the first port. Sealing the first port via the first beam eliminates the need for a separate sealing structure. This reduces the number of components, simplifies the assembly structure, facilitates lightweight design of the battery device, improves assembly efficiency, and reduces costs.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery cell, battery device, power supply device, and energy storage device. Background Technology

[0002] Energy conservation and emission reduction are key to sustainable social development. Rechargeable batteries, with their ability to store and release energy as needed, are widely used in various electrical devices and energy storage systems, and are an important component in promoting energy transition and sustainable development. For the new energy industry, battery technology is a crucial factor in its development.

[0003] A battery device typically includes battery cells, heat exchange plates, and a first beam. The heat exchange plates are used to exchange heat with the battery cells to regulate their operating temperature. The first beam can be used to constrain the deformation of the battery cells, or it can also alleviate the impact force on the battery cells. The first beam forms the overall skeleton of the battery device, improving the structural strength of the battery device.

[0004] In related technologies, the heat exchange plate and the first beam are mostly independent structures, with a large number of components and a complex overall assembly structure, which is not conducive to controlling the overall weight and structure of the battery device. Summary of the Invention

[0005] This application aims to at least address one of the technical problems existing in the background art. Therefore, one object of this application is to provide a battery device, an electrical device, and an energy storage device to simplify the structure of the battery device.

[0006] An embodiment of the first aspect of this application provides a battery device, including: a battery cell; a housing for accommodating the battery cell, the housing including: a heat exchange plate for heat exchange with the battery cell, the heat exchange plate having a heat exchange channel and a first port, the first port communicating with the heat exchange channel; a first beam fixedly connected to the heat exchange plate; wherein the first beam includes: a first beam body extending along a first direction, the first beam body being located on one side of the battery cell along a second direction, the first beam body being configured to limit the battery cell; a first sealing portion along the height direction of the battery device, the first sealing portion being connected to the side of the first beam body near the heat exchange plate, the first sealing portion being used to seal the first port; the first direction, the second direction and the height direction of the battery device intersect each other and are not coplanar.

[0007] In the technical solution of this application embodiment, the first beam is divided into a first beam body and a first sealing part. The first beam body serves to limit the movement of the battery cell, while the first sealing part seals the first port; that is, the first beam is an expansion beam. The expansion beam is adjacent to the heat exchange plate in the battery device, facilitating the placement of the first sealing part on the expansion beam to seal the first port. Simultaneously, no additional independent sealing structure is required, thereby reducing the number of components, simplifying the assembly structure, and contributing to a lightweight design of the battery device, while also improving assembly efficiency and reducing costs.

[0008] In some embodiments, the heat exchange plate includes a main body and an extension connected to each other. The main body is located on the side of the first beam closer to the battery cell. One side of the extension is connected to the main body, and the other side of the extension extends to the side of the first beam away from the battery cell. Both the main body and the extension have a first port. The first sealing portion includes a first part and a second part connected to each other. The first beam is connected to the second part, and the first part is connected to the side of the second part away from the battery cell. The first part seals the first port of the extension, and the second part seals the first port of the main body. Since the extension extends to the side of the first beam away from the battery cell, and the first port of the extension and the battery cell are located on opposite sides of the first beam, the first port of the extension can be set as an input port or an output port, thereby isolating the input port and output port from the battery cell and preventing the input port or output port from affecting the arrangement of the battery cell.

[0009] In some embodiments, the heat exchange plate includes a main body and two extensions, the two extensions being connected to opposite sides of the main body along a first direction; the first sealing portion includes two first parts and one second part, the two first parts being connected to opposite sides of the second part along the first direction; the two first parts respectively seal the first ports located on the two extensions. The two extensions are located on opposite sides of the main body, allowing the input and output ports to be arranged on opposite sides respectively. This rational layout avoids interference between different port sealing structures, improves the rationality and compactness of the structural layout, and facilitates subsequent assembly and maintenance.

[0010] In some embodiments, the battery device further includes an input connector and an output connector, both located on the side of the first beam away from the battery cell. Both the input and output connectors are connected to an extension and communicate with a first port located on the extension. The input and output connectors serve as connecting components between the external pipeline and the heat exchange channel, enabling the heat exchange medium to interface with the external heat exchange system. This allows the heat exchange medium to flow smoothly in through the input connector and input port and flow out through the output connector and output port, ensuring the integrity of the heat exchange medium circulation loop, guaranteeing the heat exchange efficiency of the heat exchange plate, and thus maintaining the appropriate operating temperature of the battery cell.

[0011] In some embodiments, the first port includes an input port, an output port, and a connecting port. The input port and the output port are both located in the extension portion, and the connecting port is located in the main body portion. The heat exchange plate is provided with multiple heat exchange channels, which are connected by the connecting port to form a complete heat exchange medium circulation loop, effectively expanding the heat exchange contact area and improving heat exchange efficiency and heat exchange uniformity.

[0012] In some embodiments, along a first direction, the portion of the first beam protruding from the second portion is connected to the extension. The first beam serves as the main support structure for the first beam, and its connection with the extension avoids assembly loosening caused by their independent installation, reduces relative displacement between components, and improves the overall rigidity and stability of the internal structure of the battery device.

[0013] In some embodiments, along a first direction, the extension is connected to the second portion on the side closer to the second portion. Because the heat exchange plate and the first sealing portion are shaped to interlock, such that a portion of the extension contacts the second portion and the second portion connects to the extension, the stability of the connection between the heat exchange plate and the first beam is improved, the relative displacement between components is reduced, and the stability of the battery device is enhanced.

[0014] In some embodiments, the first beam and the first sealing part are integrally formed. This integral forming eliminates splicing, assembly gaps, and connection breaks, resulting in strong overall structural continuity and effectively improving the overall bending, compressive, and deformation resistance of the first beam. It also eliminates the need for separate processing and assembly steps for the first beam and the first sealing part, reducing the number of parts and tooling required, shortening the production cycle, and effectively controlling the overall manufacturing cost of the battery device.

[0015] In some embodiments, the first beam further includes a first side beam along a second direction, located on the side of the first sealing portion away from the battery cell, and the first side beam is integrally formed with the first sealing portion. The integral formation of the first side beam and the first sealing portion ensures strong overall structural continuity and effectively improves the overall bending, compressive, and deformation resistance of the first beam. It eliminates the need for separate processing and assembly steps for the first side beam and the first sealing portion, reducing the number of parts and tooling required, shortening the production cycle, and effectively controlling the overall manufacturing cost of the battery device.

[0016] In some embodiments, the housing further includes a side beam located on at least one side of the heat exchange plate, and the side beam and the first beam are located on different sides of the battery cell, the side beam being integrally formed with the heat exchange plate. The integral formation of the side beam with the heat exchange plate eliminates the need for additional independent supports and connecting components, reducing the number of parts in the battery device and simplifying the assembly process.

[0017] In some embodiments, the housing includes two side beams located on opposite sides of the heat exchange plate. The heat exchange plate includes two sub-heat exchange plates arranged in the same direction as the side beams. Each sub-heat exchange plate has a heat exchange channel and a first port. One side beam is integrally formed with one sub-heat exchange plate, and the other side beam is integrally formed with the other sub-heat exchange plate. Disassembling the heat exchange plate into sub-heat exchange plates, instead of an integral heat exchange plate design, reduces the processing difficulty of a single heat exchange plate. The sub-heat exchange plates are smaller and simpler in structure, facilitating mold processing, forming, and subsequent assembly and maintenance. The modular design of the sub-heat exchange plates allows for flexible adjustment of the number and spacing of sub-heat exchange plates according to the size of the battery device and the number of battery cells, adapting to different battery device specifications and improving the versatility of the solution.

[0018] In some embodiments, the heat exchange plate further has a second port, with the first and second ports located on opposite sides of the battery cell, and the second port communicating with the heat exchange channel. The housing also includes a second beam fixedly connected to the heat exchange plate, with the battery cell located between the first and second beams, and a portion of the second beam used to seal the second port. The heat exchange plate has a first port and a second port, with portions of the first and second beams respectively sealing the first and second ports, thus achieving end-to-end sealing of the heat exchange plate, reducing the risk of leakage of the heat exchange medium from both ends of the heat exchange channel, and improving the reliability of the heat exchange plate's heat exchange function. Furthermore, neither the first nor the second port requires an additional independent sealing or supporting structure, reducing the number of parts and simplifying the assembly process.

[0019] In some embodiments, the portions of the second beam used to block the second ports are all located on the side of the second beam closest to the first beam. The second ports are all configured as connecting ports, eliminating the need for separate input or output ports, and the second ports do not need to extend to the side of the second beam away from the battery cell. Therefore, the structure on the second beam used to block the second ports can be centrally arranged on the side of the second beam closest to the first beam, reducing the difficulty of arranging the blocking structure and facilitating the blocking of the second ports.

[0020] An embodiment of the second aspect of this application provides an electrical device that includes the battery device described in the above embodiments, the battery device being used to provide electrical energy.

[0021] An embodiment of the third aspect of this application provides an energy storage device, which includes the battery device in the above embodiments, the battery device being used to store electrical energy.

[0022] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0023] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0024] Figure 1 This application provides structural schematic diagrams of vehicles for some embodiments; Figure 2 This is an exploded view of the battery device provided in some embodiments of this application; Figure 3 A partial structural schematic diagram of a battery device provided for some embodiments; Figure 4 This is a partial structural diagram of the box provided in some embodiments of this application; Figure 5 Top view of a portion of the housing provided in some embodiments of this application; Figure 6 for Figure 5 Perspective view of the middle box; Figure 7 for Figure 5 Cross-sectional view of surface AA; Figure 8 A schematic diagram of the structure of the first beam provided for some embodiments of this application; Figure 9 A structural schematic diagram of the first beam provided for some embodiments of this application from another perspective; Figure 10 A top view of a first beam provided for some embodiments of this application; Figure 11 for Figure 10 Cross-sectional view of the BB surface; Figure 12 This is a schematic diagram of the structure of a heat exchange plate provided in some embodiments of this application; Figure 13 Top view of a heat exchange plate provided in some embodiments of this application; Figure 14 This is a structural schematic diagram of the second beam provided for some embodiments of this application.

[0025] Explanation of reference numerals in the attached figures: 1000, Vehicle; 100, Battery Unit; 200, Controller; 300, Motor; 10, Housing; 11, First Sub-Housing; 12, Second Sub-Housing; 101, First Beam; 111, First Beam Body; 112, First Sealing Part; 1121, First Protrusion; 1122, First Section; 1123, Second Section; 113, First Side Beam; 102, Heat Exchange Plate; 121, First Port; 1211. Input port; 1212, Output port; 1213, Connecting port; 122, Heat exchange channel; 123, Main body; 124, Extension; 125, Sub-heat exchange plate; 126, Second port; 103, Side beam; 104, Second beam; 141, Second beam body; 142, Second sealing part; 1421, Second protrusion; 143, Second side beam; 20, Battery cell; 30, Input connector; 40, Output connector. Detailed Implementation

[0026] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0028] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0029] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0030] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0031] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0032] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0033] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0034] Currently, the application of rechargeable batteries is becoming increasingly widespread, judging from market trends. They are not only used in energy storage systems for hydropower, thermal power, wind power, and solar power plants, but also extensively in various electronic devices, such as electric bicycles, electric motorcycles, and electric vehicles, as well as in military equipment and aerospace. As the application areas of rechargeable batteries continue to expand, the market demand is also constantly increasing.

[0035] A battery pack includes a housing and individual battery cells housed within the housing cavity. The performance of individual battery cells is susceptible to temperature fluctuations; excessively high or low temperatures can reduce their operational stability. Therefore, existing battery packs typically incorporate heat exchange plates. Heat exchange between the heat exchange plates and the individual battery cells regulates their temperature, maintaining them within a suitable operating temperature range and thus improving the overall stability of the battery pack.

[0036] A first beam is also included in the battery assembly. This first beam can be an expansion beam, which constrains the expansion of individual battery cells, reducing their deformation. Alternatively, it can be a side beam, forming the frame of the battery assembly and improving its structural strength. Finally, it can be a crossbeam, which helps mitigate impacts to the individual battery cells.

[0037] In related technologies, the heat exchange plate and the first beam are often independently designed structures, each performing its own function. To facilitate heat transfer, the heat exchange plate typically has internal heat exchange channels, which form ports for the heat exchange medium to enter or exit, or for sealing. These ports require additional independent sealing components to prevent leakage. This structural design results in a large number of components in the battery device, including the heat exchange plate, the first beam, and sealing components, leading to a complex overall assembly structure and cumbersome assembly process. This not only increases the assembly difficulty and production cost of the battery device but also hinders effective control of the overall weight of the battery device.

[0038] This application provides a battery device, which includes a housing and battery cells. The housing is used to house the battery cells. The housing includes a first beam and a heat exchange plate, the heat exchange plate exchanging heat with the battery cells, and the first beam is fixedly connected to the heat exchange plate. The heat exchange plate has a first port and a heat exchange channel, the first port communicating with the heat exchange channel. The first beam includes a first beam body and a first sealing part. The first beam body extends along a first direction and is located on one side of the battery cell along a second direction, and the first beam body is used to limit the battery cell. Along the height direction of the battery device, the first sealing part is connected to the side of the first beam body near the heat exchange plate, and the first sealing part is used to seal the first port. By splitting the first beam into a first beam body and a first sealing part, the first beam body can both limit the battery cells and seal the first port through the first sealing part; that is, the first beam is an expansion beam. The expansion beam is adjacent to the heat exchange plate in the battery device, which facilitates the installation of the first sealing part on the expansion beam to seal the first port. At the same time, there is no need to set up an additional independent sealing structure, which reduces the number of parts, simplifies the assembly structure, facilitates the lightweight design of the battery device, and improves assembly efficiency and reduces costs.

[0039] The battery device disclosed in this application can be used, but is not limited to, in electrical devices or energy storage devices such as vehicles, ships, or aircraft. A power system incorporating the battery device disclosed in this application can be used to form the electrical device or energy storage device, which helps to simplify the structure of the battery device and reduce the weight of the electrical device or energy storage device.

[0040] This application provides an electrical device that uses a battery as a power source. The electrical device can be, but is not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0041] This application also provides an energy storage device that uses a battery as a power source. The energy storage device can be, but is not limited to, an energy storage container, an energy storage cabinet, an energy storage power station, an energy storage battery pack, or a portable energy storage system.

[0042] For ease of explanation, the following embodiments will be described using a vehicle as an example of an electrical device according to an embodiment of this application.

[0043] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle provided in some embodiments of this application. The vehicle 1000 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery device 100 is installed inside the vehicle 1000, and the battery device 100 can be located at the bottom, front, or rear of the vehicle 1000. The battery device 100 can be used to power the vehicle 1000; for example, the battery device 100 can serve as the operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery device 100 to supply power to the motor 300, for example, to meet the power needs of the vehicle 1000 during starting, navigation, and driving.

[0044] In some embodiments of this application, the battery device 100 can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0045] Please refer to Figure 2 , Figure 2This is an exploded structural diagram of a battery device provided in some embodiments of this application. The battery device 100 includes a housing 10 and a battery cell 20, with the battery cell 20 housed within the housing 10. The housing 10 provides a receiving cavity for the battery cell 20, and the housing 10 can adopt various structures. In some embodiments, the housing 10 may include a first sub-housing 11 and a second sub-housing 12, which overlap each other, jointly defining a receiving space for accommodating the battery cell 20. The second sub-housing 12 may be a hollow structure with one open end, and the first sub-housing 11 may be a plate-like structure, covering the open side of the second sub-housing 12 so that the first sub-housing 11 and the second sub-housing 12 jointly define the receiving space; alternatively, the first sub-housing 11 and the second sub-housing 12 may both be hollow structures with one open side, with the open side of the first sub-housing 11 overlapping the open side of the second sub-housing 12. Of course, the box 10 formed by the first sub-box 11 and the second sub-box 12 can be of various shapes, such as a cylinder, a cuboid, etc.

[0046] In the battery device 100, there can be multiple battery cells 20, which can be connected in series, parallel, or in a mixed configuration. A mixed configuration means that multiple battery cells 20 are connected in both series and parallel connections. Multiple battery cells 20 can be directly connected in series, parallel, or in a mixed configuration, and then the entire assembly of the multiple battery cells 20 is housed within the housing 10. Alternatively, the battery device 100 can also consist of multiple battery cells 20 first connected in series, parallel, or in a mixed configuration to form battery modules, and then these battery modules are connected in series, parallel, or in a mixed configuration to form a whole, which is also housed within the housing 10. The battery device 100 may also include other structures; for example, it may include a busbar component for electrical connection between the multiple battery cells 20.

[0047] Each battery cell 20 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 to these. The battery cell 20 can be cylindrical, flat, cuboid, or other shapes.

[0048] This application provides a battery device. Figure 3 A partial structural schematic diagram of a battery device provided for some embodiments. Figure 4 This is a partial structural diagram of the housing provided in some embodiments of this application. See also... Figure 3 and Figure 4 The housing 10 includes a first beam 101 and a heat exchange plate 102. The heat exchange plate 102 exchanges heat with the battery cell 20. The first beam 101 is fixedly connected to the heat exchange plate 102.

[0049] Figure 5 This is a top view of a portion of the housing provided for some embodiments of this application. Figure 6 for Figure 5 Perspective view of the middle box. Figure 7 for Figure 5 Cross-sectional view of surface AA. (Combined with...) Figures 4 to 7 The heat exchange plate 102 has a first port 121 and a heat exchange channel 122, and the first port 121 is connected to the heat exchange channel 122.

[0050] According to some embodiments of this application, Figure 8 This is a structural schematic diagram of the first beam provided for some embodiments of this application. Figure 9 This is a structural schematic diagram of the first beam provided for some embodiments of this application from another perspective. Figure 10 A top view of a first beam provided for some embodiments of this application. Figure 11 for Figure 10 Cross-sectional view of the BB plane. See also Figures 8 to 11 The first beam 101 includes a first beam body 111 and a first sealing portion 112. The first beam body 111 extends along a first direction X and is located on one side of the battery cell 20 along a second direction Y. The first beam body 111 is configured to limit the position of the battery cell 20. Along the height direction Z of the battery device 100, the first sealing portion 112 is connected to the side of the first beam body 111 near the heat exchange plate 102 and is used to seal the first port 121. The first direction X, the second direction Y, and the height direction Z of the battery device intersect each other but are not coplanar.

[0051] In the embodiments of this application, the first beam 101 and the heat exchange plate 102 are both part of the housing 10. The first beam 101 and the heat exchange plate 102 may belong to the first sub-housing 11; or the first beam 101 and the heat exchange plate 102 may belong to the second sub-housing 12.

[0052] In the embodiments of this application, the heat exchange plate 102 may be the bottom plate of the housing 10 or the cover plate of the housing 10.

[0053] Figure 3 The battery unit 100 eliminates the need for other components in the casing. Figure 4 Compared to Figure 3 The difference is that, Figure 4 It also eliminates the need for components such as the battery cell 20. See also Figure 3The heat exchange plate 102 contacts the battery cell 20 and is used to exchange heat with the battery cell 20 to regulate the operating temperature of the battery cell 20 and keep it within a suitable operating temperature range. A heat exchange channel 122 is formed inside the heat exchange plate 102. The heat exchange channel 122 can adopt a straight, bent, or serpentine structure design to adapt to the spatial layout within the housing 10 and the arrangement of the battery cells 20, facilitating the smooth flow of the heat exchange medium (such as coolant, heat transfer oil, etc.) within the heat exchange channel 122 to achieve heat transfer between the heat exchange plate 102 and the battery cell 20.

[0054] The heat exchange plate 102 also has a first port 121, which is connected to the heat exchange channel 122. The first port 121 is used for the heat exchange medium to enter and exit the heat exchange channel 122, or for connecting different heat exchange channels 122. The shape and size of the first port 121 can be designed according to the requirements of the heat exchange channel 122 and the overall structure of the heat exchange plate 102, so as to facilitate subsequent sealing and plugging.

[0055] In this embodiment of the application, the first sealing part 112 sealing the first port 121 means that a part of the first sealing part 112 can prevent the heat exchange medium in the heat exchange channel 122 from leaking, so that the heat exchange channel 122 cannot be directly connected to the outside, rather than completely sealing the entire heat exchange channel 122.

[0056] In one implementation of this application, the first direction X, the second direction Y, and the height direction Z of the battery device are all perpendicular to each other. For example, the first beam 111 may extend along the length or width direction of the battery device 100.

[0057] The first beam 111 is the main structure of the first beam 101. The first beam 111 is located on one side of the battery cell 20 along the second direction Y. The first beam 111 can abut against the battery cell 20. The first beam 111 is used to provide support and limit the position of the battery cell 20.

[0058] The first sealing part 112 and the first beam 111 can be fixedly connected or integrally formed. The structure of the sealing part of the first sealing part 112 is adapted to the first port 121, and its size and shape match the first port 121. The sealing part of the first sealing part 112 can be embedded in the first port 121 to achieve sealing of the first port 121, reduce the risk of heat exchange medium in the heat exchange channel 122 leaking from the first port 121, and ensure the heat exchange efficiency of the heat exchange plate 102 and the safety of the battery device 100.

[0059] Along the height direction Z of the battery device 100, the heat exchange plate 102 and the first sealing part 112 are both located on the same side of the first beam 111, which can effectively utilize the space inside the housing 10, avoid spatial interference between the heat exchange plate 102, the first beam 111 and the first sealing part 112, and improve the structural compactness of the battery device 100.

[0060] For example, the first sealing part 112 is provided with a first protrusion 1121 on the side facing the first port 121.

[0061] The first protrusion 1121 is integrally formed or fixedly connected to the side of the first sealing part 112 facing the heat exchange plate 102. The structure and size of the first protrusion 1121 are adapted to the first port 121. The size of the first protrusion 1121 can be slightly larger than the size of the first port 121 to form an interference fit, or a sealing ring can be provided on the outer wall of the first protrusion 1121 to further improve the sealing performance. When the first beam 101 is assembled with the heat exchange plate 102, the first protrusion 1121 can be embedded in the first port 121 to achieve the sealing of the first port 121.

[0062] The first beam 101 is divided into a first beam body 111 and a first sealing part 112. The first beam body 111 serves to limit the movement of the battery cell 20, while the first sealing part 112 seals the first port 121; in other words, the first beam 101 is an expansion beam. The expansion beam is adjacent to the heat exchange plate 102 in the battery assembly, facilitating the placement of the first sealing part 112 on the expansion beam to seal the first port 121. Simultaneously, no additional independent sealing structure is required, thereby reducing the number of components, simplifying the assembly structure, facilitating a lightweight design of the battery assembly, improving assembly efficiency, and reducing costs.

[0063] According to some embodiments of this application, Figure 12 This is a schematic diagram of the structure of a heat exchange plate provided in some embodiments of this application. Figure 13 A top view of a heat exchange plate provided in some embodiments of this application. See also Figure 12 and Figure 13 The heat exchange plate 102 includes a main body 123 and an extension 124 connected to each other. Figures 3 to 13 The main body 123 is located on the side of the first beam 111 close to the battery cell 20. One side of the extension 124 is connected to the main body 123, and the other side of the extension 124 extends to the side of the first beam 111 away from the battery cell 20. Both the main body 123 and the extension 124 have a first port 121.

[0064] See Figures 8 to 10The first sealing part 112 includes a first part 1122 and a second part 1123 that are connected to each other. The first beam 111 is connected to the second part 1123, and the first part 1122 is connected to the side of the second part 1123 away from the battery cell 20.

[0065] The first part 1122 blocks the first port 121 of the extension 124, and the second part 1123 blocks the first port 121 of the main body 123.

[0066] In the embodiments of this application, the first part 1122 is located on the side of the first beam 111 away from the battery cell 20, one side of the second part 1123 is connected to the first part 1122, and the other side of the second part 1123 extends to the side of the first beam 111 close to the battery cell 20.

[0067] In the embodiments of this application, the extension 124 is a portion of the heat exchange plate 102 that protrudes toward the side away from the battery cell 20, that is, a portion of the first port 121 and a portion of the heat exchange channel 122 of the heat exchange plate 102 are located on the side of the first beam 111 away from the battery cell 20. The main body 123 can be understood as a portion of the heat exchange plate 102 that is recessed toward the side closer to the battery cell 20. Similarly, a portion of the first port 121 and a portion of the heat exchange channel 122 of the heat exchange plate 102 are located on the side of the first beam 111 closer to the battery cell 20.

[0068] At the same time, a corresponding first blocking part 112 is provided so that the first part 1122 can block the first port 121 located in the extension part 124, and the second part 1123 can block the first port 121 located in the main body part 123.

[0069] For example, both the first part 1122 and the second part 1123 are provided with a first protrusion 1121, and the first protrusion 1121 is embedded in the corresponding first port 121 to block the first port 121.

[0070] The first protrusion 1121 extends to the first port 121 and is adapted to the first port 121. The outer wall of the first protrusion 1121 fits against the inner wall of the first port 121 to seal the first port 121. The first protrusion 1121 and the first port 121 can be press-fitted or a sealing element can be added to further improve the sealing performance.

[0071] In the embodiments of this application, since part of the extension 124 extends to the side of the first beam 111 away from the battery cell 20, and the first port 121 of the extension 124 and the battery cell 20 are located on opposite sides of the first beam 111, the first port 121 of the extension 124 can be set as an input port or an output port, thereby isolating the input port and the output port from the battery cell 20 and preventing the input port or the output port from affecting the arrangement of the battery cell 20.

[0072] The input port is mainly used to introduce the heat exchange medium of the external heat exchange system into the circulation loop of the heat exchange channel 122. Its setting position is adapted to the interface of the external heat exchange pipeline, and it is usually located in the edge area of ​​the heat exchange plate 102 along the first direction X, so as to facilitate the connection with the external pipeline. The output port is used to export the heat exchange medium after heat exchange is completed from the heat exchange channel 122 and return it to the external heat exchange system for cooling or heating.

[0073] According to some embodiments of this application, see Figure 12 and 13 The heat exchange plate 102 includes a main body 123 and two extensions 124, which are respectively connected to opposite sides of the main body 123 along the first direction X.

[0074] See Figures 8 to 10 The first sealing portion 112 includes two first portions 1122 and one second portion 1123. The two first portions 1122 are respectively connected to opposite sides of the second portion 1123 along the first direction X. The two first portions 1122 respectively seal the first ports 121 located in the two extensions 124.

[0075] In the embodiments of this application, two extensions 124 are located on opposite sides of the main body 123 along the first direction X, making the main body shape of the heat exchange plate 102 approximately "U"-shaped. Two first portions 1122 are located on opposite sides of the second portion 1123 along the first direction X, making the main body shape of the first sealing portion 112 approximately "convex"-shaped. The shape of the heat exchange plate 102 matches the shape of the first sealing portion 112, which not only enables the first sealing portion 112 to seal the first port 121, but also allows the heat exchange plate 102 and the first beam 101 to be reasonably arranged in the battery device, reducing the space occupied by the heat exchange plate 102 and the first beam 101.

[0076] In the embodiments of this application, the two extensions 124 are located on opposite sides of the main body 123, which can arrange the input port and the output port on the two sides respectively. The layout is reasonable and avoids mutual interference between different port blocking structures, which improves the rationality and compactness of the structural layout and facilitates subsequent assembly and maintenance.

[0077] According to some embodiments of this application, see 3 and Figure 4 The battery device 100 also includes an input connector 30 and an output connector 40, both of which are located on the side of the first beam 111 away from the battery cell 20. Both the input connector 30 and the output connector 40 are connected to the extension 124 and communicate with the first port 121 located in the extension 124.

[0078] In the embodiments of this application, the first port 121 located in the extension 124 includes an input port and an output port, the input connector 30 is connected to the input port, and the output connector 40 is connected to the output port.

[0079] The input connector 30 and output connector 40 are components that connect the heat exchange medium to the external heat exchange system. They are mainly used to realize the input and output of the heat exchange medium between the external pipeline and the heat exchange channel 122. The input connector 30 connects the input port to the external heat exchange equipment, and the output connector 40 connects the output port to the external heat exchange equipment, ensuring the integrity of the heat exchange medium circulation loop. The input connector 30 and output connector 40 are fixedly connected to the extension 124 of the heat exchange plate 102. The connection is reliably sealed and can be achieved through welding, threaded connection, or sealing bonding, etc. This ensures the connection strength, prevents loosening due to medium pressure or equipment vibration during long-term use, and prevents leakage of the heat exchange medium at the connection, ensuring the stable and orderly heat exchange process.

[0080] The input connector 30 and the output connector 40 are located on the side of the first beam 111 away from the battery cell 20. This layout design makes full use of the space on both sides of the first beam 111 and avoids spatial interference between the input connector 30 and the output connector 40 and the battery cell 20 and other components.

[0081] The inlet connector 30 and outlet connector 40 serve as connecting components between the external pipeline and the heat exchange channel 122, enabling the heat exchange medium to connect with the external heat exchange system. This allows the heat exchange medium to flow smoothly through the inlet connector 30 and inlet port, and flow out through the outlet connector 40 and outlet port, ensuring the integrity of the heat exchange medium circulation loop, guaranteeing the heat exchange efficiency of the heat exchange plate 102, and thus maintaining the appropriate operating temperature of the battery cells.

[0082] According to some embodiments of this application, the first port 121 includes an input port 1211, an output port 1212, and a communication port 1213. The input port 1211 and the output port 1212 are both located in the extension portion 124, and the communication port 1213 is located in the main body portion 123.

[0083] To accommodate the temperature regulation requirements of multiple battery cells, the heat exchange plate 102 has multiple heat exchange channels 122 formed inside. These channels are evenly arranged along the length or width of the battery device 100, parallel to each other and spaced apart. They can exchange heat with multiple battery cells 20 simultaneously, improving heat exchange efficiency and ensuring that each battery cell 20 can be maintained within a suitable operating temperature range, thereby enhancing the overall operational stability of the battery device 100.

[0084] Corresponding to the structural design of multiple heat exchange channels 122, the first port 121 is divided into an input port 1211, an output port 1212, and a connecting port 1213. The input port 1211 and output port 1212 are mainly used for the inflow and outflow of the heat exchange medium, serving as channels for the heat exchange medium to connect with the external heat exchange system, and are typically located at the end edge of the heat exchange plate 102. The connecting port 1213 is used to achieve interconnection between the multiple heat exchange channels 122, allowing them to form a continuous heat exchange medium circulation loop. The corresponding ends of two adjacent heat exchange channels 122 are interconnected through the connecting port 1213, enabling the multiple heat exchange channels 122 to be connected in series or parallel to form a whole, allowing the heat exchange medium to cover all heat exchange channels 122 and maximizing the heat exchange contact area.

[0085] The heat exchange plate 102 is provided with multiple heat exchange channels 122, which are connected by the connection port 1213 to form a complete heat exchange medium circulation loop, effectively expanding the heat exchange contact area and improving heat exchange efficiency and heat exchange uniformity.

[0086] According to some embodiments of this application, along the first direction X, the portion of the first beam 111 that protrudes from the second portion 1123 is connected to the extension 124.

[0087] For example, the first beam 111 and the extension 124 can be connected by adhesive or welding.

[0088] The first beam 111 serves as the main support structure for the first beam 101. The first beam 111 is connected to the extension 124 to avoid loosening of the assembly caused by the two being set independently, reduce the relative displacement between components, and improve the overall rigidity and stability of the internal structure of the battery device 100.

[0089] According to some embodiments of this application, along the first direction X, the side of the extension 124 near the second portion 1123 is connected to the second portion 1123.

[0090] For example, the second part 1123 and the extension 124 can be connected by adhesive or welding.

[0091] For example, the second part 1123 and the extension 124 can be connected by friction stir welding.

[0092] Since the heat exchange plate 102 and the first sealing part 112 are shaped to interlock, a portion of the extension 124 contacts the second part 1123, and the second part 1123 is connected to the extension 124, which improves the stability of the connection between the heat exchange plate 102 and the first beam 111, reduces the relative displacement between components, and improves the stability of the battery device 100.

[0093] According to some embodiments of this application, the first beam 111 and the first sealing part 112 are integrally formed.

[0094] For example, the first beam 111 and the first sealing part 112 are integrally extruded.

[0095] The first beam 111 and the first sealing part 112 are integrally formed without splicing, assembly gaps, or connection breaks, resulting in strong overall structural continuity and effectively improving the overall bending, compressive, and deformation resistance of the first beam 101. This eliminates the need for separate processing and assembly steps for the first beam 111 and the first sealing part 112, reducing the number of parts and tooling required, shortening the production cycle, and effectively controlling the overall manufacturing cost of the battery device.

[0096] See Figures 3 to 11 The first beam 101 also includes a first side beam 113 along the second direction Y. The first side beam 113 is located on the side of the first sealing part 112 away from the battery cell 20, and the first side beam 113 and the first sealing part 112 are integrally formed.

[0097] For example, the first side beam 113 and the first sealing part 112 are integrally extruded, and the extrusion direction is the second direction Y.

[0098] In the embodiments of this application, the first beam 111, the first sealing part 112 and the first side beam 113 are integrally extruded.

[0099] The first side beam 113 serves as the side load-bearing frame of the battery device, which strengthens the overall structure and enhances its rigidity. It can also resist lateral collisions and compression, protect the internal battery cells, accommodate the thermal expansion and contraction of the battery cells to buffer stress, and assist in sealing against dust and water. It takes into account both installation positioning and overall protection, ensuring the safety and structural stability of the battery device.

[0100] The first side beam 113 and the first sealing part 112 are integrally formed, resulting in strong overall structural continuity and effectively improving the overall bending, compressive, and deformation resistance of the first beam 101. This eliminates the need for separate processing and assembly of the first side beam 113 and the first sealing part 112, reducing the number of parts and tooling required, shortening the production cycle, and effectively controlling the overall manufacturing cost of the battery device.

[0101] According to some embodiments of this application, the housing 10 further includes a side beam 103, which is located on at least one side of the heat exchange plate 102, and the side beam 103 and the first beam 101 are located on different sides of the battery cell 20. The side beam 103 is integrally formed with the heat exchange plate 102.

[0102] Along the extension direction X of the first beam 111, a side beam 103 is disposed on at least one side of the heat exchange plate 102. The side beam 103 is adapted to the edge contour of the heat exchange plate 102, forming a boundary wrapping and support for the heat exchange plate 102. The extension direction of the side beam 103 is consistent with the second direction Y.

[0103] The side beam 103 and the heat exchange plate 102 are made by an integral molding process, which can be achieved through die casting or integral injection molding and other compatible processes.

[0104] The side beam 103 and the heat exchange plate 102 are integrally formed, eliminating the need for additional independent support and connecting parts, reducing the number of parts in the battery device 100 and simplifying the assembly process.

[0105] According to some embodiments of this application, see Figures 4 to 6 The housing 10 includes two side beams 103, which are located on opposite sides of the heat exchange plate 102. The heat exchange plate 102 includes two sub-heat exchange plates 125, which are arranged in the same direction as the side beams 103. Both sub-heat exchange plates 125 have heat exchange channels 122 and first ports 121. One side beam 103 is integrally formed with one sub-heat exchange plate 125, and the other side beam 103 is integrally formed with the other sub-heat exchange plate 125.

[0106] In this embodiment, the heat exchange plate 102 includes two sub-heat exchange plates 125, which allows the heat exchange plate 102 to adapt to the temperature regulation requirements of a larger number of battery cells 20, further improving heat exchange uniformity and heat exchange efficiency.

[0107] In the embodiments of this application, the heat exchange channels 122 of the sub-heat exchange plates 125 are interconnected to form a complete heat exchange medium circulation loop. The connection method can adopt an adaptive structure such as pipe connection or channel docking. One of the two sub-heat exchange plates 125 has an input port, and the other of the two sub-heat exchange plates 125 has an output port.

[0108] The heat exchange plate 102 is divided into sub-heat exchange plates 125, replacing the integral heat exchange plate design. This reduces the processing difficulty of individual heat exchange plates. The sub-heat exchange plates 125 are smaller in size and have a simpler structure, making them easier to mold, form, and subsequently assemble and maintain. The modular design of the sub-heat exchange plates 125 allows for flexible adjustment of the number and spacing of the sub-heat exchange plates 125 according to the size of the battery device 100 and the number of battery cells, adapting to different specifications of battery devices and improving the versatility of the solution.

[0109] Two side beams 103 are symmetrically arranged on both sides of the two sub-heat exchange plates 125 along the extension direction Y of the first beam 111. The two side beams 103 are integrally formed with the two sub-heat exchange plates 125, which can support the edges of the sub-heat exchange plates 125, effectively disperse the force on the sub-heat exchange plates 125, and prevent the sub-heat exchange plates 125 from deforming or warping due to their large size or the expansion force of the battery cells. At the same time, it prevents the heat exchange channel 122 from collapsing or becoming blocked due to the deformation of the heat exchange components, and ensures the structural integrity and smooth flow of the heat exchange channel 122.

[0110] The side beams 103 wrap around the two ends of the sub-heat exchange plate 125, which can effectively resist damage to the edges of the sub-heat exchange plate 125 from external collisions and friction, and protect the integrity of the sub-heat exchange plate 125.

[0111] According to some embodiments of this application, in conjunction with Figures 6 to 8 The heat exchange plate 102 also has a second port 126. The first port 121 and the second port 126 are located on opposite sides of the battery cell 20, and the second port 126 is connected to the heat exchange channel 122. The housing 10 also includes a second beam 104, which is fixedly connected to the heat exchange plate 102. The battery cell 20 is located between the first beam 101 and the second beam 104. A portion of the second beam 104 is used to block the second port 126.

[0112] In the embodiments of this application, the second beam 104 is part of the box 10, and the second beam 104 may belong to the first sub-box 11; or the second beam 104 may belong to the second sub-box 12.

[0113] The heat exchange plate 102 also has a second port 126, which is connected to the heat exchange channel 122. The second port 126 is used for the heat exchange medium to enter and exit the heat exchange channel 122, or for connecting different heat exchange channels 122. The shape and size of the second port 126 can be designed according to the requirements of the heat exchange channel 122 and the overall structure of the heat exchange plate 102, so as to facilitate subsequent sealing and plugging.

[0114] In this embodiment of the application, the blocking of the second port 126 by a part of the second beam 104 means that a part of the second beam 104 can prevent the heat exchange medium in the heat exchange channel 122 from leaking, so that the heat exchange channel 122 cannot be directly connected to the outside, rather than completely blocking the entire heat exchange channel 122.

[0115] In one implementation of this application, the battery cell 20 abuts against the second beam 104. The second beam 104 is used to constrain and limit the expansion of the battery cell 20, suppressing the expansion deformation of the battery cell 20 during charge-discharge cycles, and improving the structural stability and safety of the battery device 100. The battery cells 20 are all located between the first beam 101 and the second beam 104, with the first beam 101 and the second beam 104 respectively restricting the expansion deformation of the battery cells 20 from opposite sides.

[0116] In another implementation of this application, the battery cell 20 is spaced apart from the second beam 104, which is located in the edge region of the housing 10 and can form the skeleton of the entire battery device 100.

[0117] The first beam 101 and the second beam 104 are arranged at intervals along the second direction Y, so that the first beam 101 and the second beam 104 can be respectively set at both ends of the heat exchange plate 102 along the second direction Y, thereby achieving the sealing of the first port 121 and the second port 126.

[0118] In the embodiments of this application, the heat exchange plate 102 has a first port 121 and a second port 126. A portion of the first beam 101 and a portion of the second beam 104 respectively seal the first port 121 and the second port 126, thereby sealing both ends of the heat exchange plate 102, reducing the risk of leakage of the heat exchange medium from both ends of the heat exchange channel 122, and improving the reliability of the heat exchange function of the heat exchange plate 102. At the same time, neither the first port 121 nor the second port 126 requires an additional independent sealing structure or support structure, reducing the number of parts and simplifying the assembly process.

[0119] According to some embodiments of this application, Figure 14 A schematic diagram of the structure of the second beam provided for some embodiments of this application. See also Figure 14 The portion of the second beam 104 used to block the second port 126 is located on the side of the second beam 104 closer to the first beam 101.

[0120] In an embodiment of this application, the second beam 104 includes a second beam body 141 and a second sealing portion 142. The second beam body 141 extends along a first direction X and is located on one side of the battery cell 20 along a second direction Y, abutting against the battery cell 20. Along the height direction Z of the battery device 100, the second sealing portion 142 is connected to the side of the second beam body 141 near the heat exchange plate 102, and the second sealing portion 142 is used to seal the second port 126. The first direction X, the second direction Y, and the height direction Z of the battery device are all perpendicular to each other.

[0121] A second protrusion 1421 is provided on the side of the second sealing part 142 facing the second port 126. The second protrusion 1421 is integrally formed or fixedly connected to the side of the second sealing part 142 facing the heat exchange plate 102, and the structure and size of the second protrusion 1421 are adapted to the second sealing part 142. The size of the second protrusion 1421 can be slightly larger than the size of the second sealing part 142 to form an interference fit, or a sealing ring can be provided on the outer wall of the second protrusion 1421 to further improve the sealing performance. When the second beam 104 is assembled with the heat exchange plate 102, the second protrusion 1421 can be embedded in the second sealing part 142 to achieve the sealing of the second sealing part 142.

[0122] In one implementation of this application, the second beam 141 and the second sealing part 142 are integrally extruded.

[0123] In the embodiments of this application, the second protrusions 1421 are all located on the side of the second beam 141 near the battery cell 20.

[0124] In the embodiments of this application, the second ports 126 are all configured as communication ports, eliminating the need for separate input or output ports, and the second ports 126 do not need to extend to the side of the second beam 104 away from the battery cell 20. Therefore, the structure of the second beam 104 used to block the second ports 126 can be centrally arranged on the side of the second beam 104 closest to the first beam 101, reducing the difficulty of arranging the blocking structure and facilitating the blocking of the second ports 126.

[0125] In the embodiments of this application, see Figure 14 The second beam 104 also includes a second side beam 143 along the second direction Y. The second side beam 143 is located on the side of the second sealing part 142 away from the battery cell 20, and the second side beam 143 and the second sealing part 142 are integrally formed.

[0126] Combination Figure 6The flow direction of the medium shown is further detailed as follows: The heat exchange medium enters the input port 1211 through the input connector 30, and then flows into the sub-heat exchange plate 125 with the input port 1211; since the multiple heat exchange channels 122 of the sub-heat exchange plate 125 are interconnected through the communication port 1213, the flowing heat exchange medium will diffuse into all the heat exchange channels 122 of the sub-heat exchange plate 125, realizing the initial heat exchange with the corresponding battery cell 20; subsequently, the heat exchange medium flows along the second direction Y to the second end of the sub-heat exchange plate 125. Port 126 connects the sub-heat exchange plate 125 with the heat exchange channels 122 of the adjacent sub-heat exchange plate 125. After entering another sub-heat exchange plate 125, the heat exchange medium diffuses further into the multiple heat exchange channels 122 inside the sub-heat exchange plate 125 through the second port 126, completing the heat exchange with the battery cells in that area. Finally, the heat exchange medium flows along the second direction Y to the end of the sub-heat exchange plate 125 with the output port 1212, and after being collected, it flows back to the external heat exchange system through the output port 1212 and the corresponding output connector 40, completing the circulation of the entire heat exchange medium.

[0127] This application provides an electrical device, which includes a battery device according to any of the above embodiments, and the battery device is used to provide electrical energy.

[0128] The improved power device in this application reduces the number of parts, simplifies the assembly structure, facilitates the lightweight design of the battery device, and improves assembly efficiency while reducing costs.

[0129] This application provides an energy storage device, which includes a battery device according to any of the above embodiments, and the battery device is used to store electrical energy.

[0130] The energy storage device improved in this application reduces the number of parts, simplifies the assembly structure, facilitates the lightweight design of the battery device, and improves assembly efficiency while reducing costs.

[0131] An embodiment of this application provides a battery device, which includes a housing 10 and battery cells 20. The housing 10 is used to house the battery cells 20. The housing 10 includes a first beam 101 and a heat exchange plate 102. The heat exchange plate 102 exchanges heat with the battery cells 20, and the first beam 101 is fixedly connected to the heat exchange plate 102. The heat exchange plate 102 has a first port 121 and a heat exchange channel 122, and the first port 121 communicates with the heat exchange channel 122.

[0132] The first beam 101 includes a first beam body 111 and a first sealing portion 112. The first beam body 111 extends along a first direction X and is located on one side of the battery cell 20 along a second direction Y. The first beam body 111 is configured to limit the position of the battery cell 20. Along the height direction Z of the battery device 100, the first sealing portion 112 is connected to the side of the first beam body 111 near the heat exchange plate 102 and is used to seal the first port 121. The first direction X, the second direction Y, and the height direction Z of the battery device intersect each other but are not coplanar.

[0133] The heat exchange plate 102 includes a main body 123 and an extension 124 connected to each other. The main body 123 is located on the side of the first beam 111 near the battery cell 20. One side of the extension 124 is connected to the main body 123, and the other side of the extension 124 extends to the side of the first beam 111 away from the battery cell 20. Both the main body 123 and the extension 124 have a first port 121. The first sealing part 112 includes a first portion 1122 and a second portion 1123 connected to each other. The first beam 111 is connected to the second portion 1123, and the first portion 1122 is connected to the side of the second portion 1123 away from the battery cell 20. The first portion 1122 seals the first port 121 of the extension 124, and the second portion 1123 seals the first port 121 of the main body 123.

[0134] The heat exchange plate 102 includes a main body 123 and two extensions 124, which are respectively connected to opposite sides of the main body 123 along a first direction X. The first sealing portion 112 includes two first parts 1122 and one second part 1123, which are respectively connected to opposite sides of the second part 1123 along the first direction X. The two first parts 1122 respectively seal the first ports 121 located in the two extensions 124.

[0135] The battery device 100 also includes an input connector 30 and an output connector 40, both located on the side of the first beam 111 away from the battery cell 20. Both the input connector 30 and the output connector 40 are connected to the extension 124 and communicate with a first port 121 located in the extension 124. The first port 121 includes an input port 1211, an output port 1212, and a communication port 1213. The input port 1211 and the output port 1212 are both located in the extension 124, and the communication port 1213 is located in the main body 123.

[0136] Along the first direction X, the portion of the first beam 111 that protrudes from the second part 1123 is connected to the extension 124, and the side of the extension 124 near the second part 1123 is connected to the second part 1123. The first beam 111 and the first sealing part 112 are integrally formed.

[0137] The first beam 101 also includes a first side beam 113 along the second direction Y. The first side beam 113 is located on the side of the first sealing part 112 away from the battery cell 20, and the first side beam 113 and the first sealing part 112 are integrally formed.

[0138] The housing 10 also includes side beams 103, which are located on at least one side of the heat exchange plate 102. The side beams 103 and the first beam 101 are located on different sides of the battery cell 20. The side beams 103 are integrally formed with the heat exchange plate 102. The housing 10 includes two side beams 103, which are located on opposite sides of the heat exchange plate 102. The heat exchange plate 102 includes two sub-heat exchange plates 125. The arrangement direction of the two sub-heat exchange plates 125 is the same as the arrangement direction of the two side beams 103. Each sub-heat exchange plate 125 has a heat exchange channel 122 and a first port 121. One side beam 103 is integrally formed with one sub-heat exchange plate 125, and the other side beam 103 is integrally formed with the other sub-heat exchange plate 125.

[0139] The heat exchange plate 102 also has a second port 126. The first port 121 and the second port 126 are located on opposite sides of the battery cell 20, and the second port 126 communicates with the heat exchange channel 122. The housing 10 also includes a second beam 104, which is fixedly connected to the heat exchange plate 102. The battery cell 20 is located between the first beam 101 and the second beam 104. A portion of the second beam 104 is used to block the second port 126. The portion of the second beam 104 used to block the second port 126 is located on the side of the second beam 104 closest to the first beam 101.

[0140] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery device, characterized in that, The battery device includes: Battery cell; A housing for accommodating individual battery cells, the housing comprising: A heat exchange plate exchanges heat with the battery cell. The heat exchange plate has a heat exchange channel and a first port, and the first port is connected to the heat exchange channel. The first beam is fixedly connected to the heat exchange plate; The first beam includes: A first beam extends along a first direction and is located on one side of the battery cell along a second direction. The first beam is configured to limit the position of the battery cell. The first sealing part is connected to the side of the first beam near the heat exchange plate along the height direction of the battery device. The first sealing part is used to seal the first port. The first direction, the second direction and the height direction of the battery device intersect each other and are not coplanar.

2. The battery device according to claim 1, characterized in that, The heat exchange plate includes a main body and an extension connected to each other. The main body is located on the side of the first beam closer to the battery cell. One side of the extension is connected to the main body, and the other side of the extension extends to the side of the first beam away from the battery cell. Both the main body and the extension have the first port. The first sealing part includes a first part and a second part that are connected to each other. The first beam is connected to the second part, and the first part is connected to the side of the second part away from the battery cell. The first part is blocked at the first port of the extension, and the second part is blocked at the first port of the main body.

3. The battery device according to claim 2, characterized in that, The heat exchange plate includes a main body and two extensions, the two extensions being connected to opposite sides of the main body along the first direction; The first blocking part includes two first parts and one second part, wherein the two first parts are respectively connected to the two opposite sides of the second part along the first direction; The two first portions respectively block the first ports located in the two extensions.

4. The battery device according to claim 2, characterized in that, The battery device further includes an input connector and an output connector, both of which are located on the side of the first beam away from the battery cell. Both the input connector and the output connector are connected to the extension and communicate with the first port located in the extension.

5. The battery device according to claim 2, characterized in that, The first port includes an input port, an output port, and a communication port. The input port and the output port are both located in the extension, and the communication port is located in the main body.

6. The battery device according to any one of claims 2 to 5, characterized in that, Along the first direction, the portion of the first beam that protrudes from the second part is connected to the extension.

7. The battery device according to any one of claims 2 to 5, characterized in that, Along the first direction, the extension is connected to the second portion on the side near the second portion.

8. The battery device according to any one of claims 1 to 5, characterized in that, The first beam and the first sealing part are integrally formed.

9. The battery device according to any one of claims 1 to 5, characterized in that, The first beam also includes: The first side beam is located along the second direction on the side of the first sealing portion away from the battery cell, and the first side beam is integrally formed with the first sealing portion.

10. The battery device according to any one of claims 1 to 5, characterized in that, The enclosure also includes: A side beam is located on at least one side of the heat exchange plate, and the side beam and the first beam are located on different sides of the battery cell. The side beam is integrally formed with the heat exchange plate.

11. The battery device according to claim 10, characterized in that, The housing includes two side beams, which are located on opposite sides of the heat exchange plate. The heat exchange plate includes two sub-heat exchange plates, which are arranged in the same direction as the side beams. Each sub-heat exchange plate has a heat exchange channel and the first port. One side beam is integrally formed with one sub-heat exchange plate, and the other side beam is integrally formed with the other sub-heat exchange plate.

12. The battery device according to any one of claims 1 to 5, characterized in that, The heat exchange plate also has a second port, the first port and the second port are respectively located on opposite sides of the battery cell, and the second port is connected to the heat exchange channel; the housing also includes: The second beam is fixedly connected to the heat exchange plate, and the battery cell is located between the first beam and the second beam. A portion of the second beam is used to block the second port.

13. The battery device according to claim 12, characterized in that, The portion of the second beam used to block the second port is located on the side of the second beam closest to the first beam.

14. An electrical appliance, characterized in that, The electrical device includes a battery device as described in any one of claims 1 to 13, the battery device being used to provide electrical energy.

15. An energy storage device, characterized in that, The energy storage device includes a battery device as described in any one of claims 1 to 13, the battery device being used to store electrical energy.

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