Battery device and electric device

Abstract

The utility model is suitable for the technical field of batteries, and provides a battery device and a power utilization device.The battery device comprises a box body, a plurality of battery monomer assemblies and a supporting part, the box body is provided with a containing space, and the supporting part comprises a heat management part, a supporting frame and an anti-overflow glue part; the heat management part divides the accommodating space into an upper-layer space and a lower-layer space which are arranged up and down, the plurality of battery monomer assemblies are respectively arranged in the upper-layer space and the lower-layer space, and the heat management part supports the battery monomer assemblies in the upper-layer space; turned-over edges are arranged on the two opposite sides of the heat management component and located on the side, facing the upper-layer space, of the heat management component, and the supporting frame is fixedly connected to the box body so that the heat management component can be fixed in the containing space; structural adhesive is arranged between the battery monomer assembly and the heat management component in the upper space; and the adhesive overflow prevention piece is fixed at the joint of the turned-over edge and the supporting frame. According to the battery device and the power utilization device provided by the embodiment of the invention, the assembly stability of the upper-layer battery monomer assembly is improved.

Description

Technical Field

[0001] This application relates to the field of batteries, and in particular to a battery device and an electrical device. Background Technology

[0002] Energy conservation and emission reduction are key to sustainable development, which in turn promotes the adjustment of the energy structure and drives the development and application of battery technology. The key to the development of battery technology lies in electrochemical energy storage technology. Due to its advantages such as high energy density, good cycle capability, high operating voltage, environmental friendliness, and low self-discharge, it has been widely used in portable electronics, electric vehicles, and energy storage systems.

[0003] Currently, the power batteries of new energy vehicles typically use double-layer battery cell modules to improve energy density; however, the assembly stability of the upper battery cell module needs to be improved. Utility Model Content

[0004] In view of this, embodiments of this application provide a battery device and an electrical device that can improve the assembly stability of upper battery cell components.

[0005] An embodiment of the first aspect of this application provides a battery device, comprising: a housing having a receiving space; a plurality of battery cell assemblies disposed within the receiving space; and a support component including a thermal management component, a support frame fixed to the thermal management component, and an anti-overflow adhesive component. The thermal management component divides the receiving space into an upper space and a lower space arranged vertically, with the plurality of battery cell assemblies respectively disposed in the upper space and the lower space. The thermal management component supports the battery cell assemblies in the upper space. Flanges are provided on opposite sides of the thermal management component, with the flanges located on the side of the thermal management component facing the upper space. The support frame is fixedly connected to the housing to fix the thermal management component within the receiving space. Structural adhesive is provided between the battery cell assemblies in the upper space and the thermal management component, and the anti-overflow adhesive component is fixed at the connection between the flanges and the support frame.

[0006] In the battery device provided in this application embodiment, the support component includes a thermal management component and a support frame fixed to the thermal management component. The thermal management component is fixed within the accommodating space by the support frame. The thermal management component can support the battery cell assembly in the upper space. Since the thermal management component has flanges on opposite sides, the flanges can improve the structural strength of the thermal management component, making it less prone to deformation or cracking. The aforementioned support component is less likely to experience structural loosening or fatigue damage due to vehicle vibration, mechanical impact, etc., thereby reducing the risk of displacement or structural failure of the upper battery cell assembly. Therefore, the aforementioned battery device can effectively improve the assembly stability of the upper battery cell assembly.

[0007] In some embodiments, the support frame is fixedly connected to the housing at opposite ends along the first direction, and the thermal management component is provided with flanges on opposite sides along the second direction, with the first direction being perpendicular to the second direction.

[0008] By adopting the above technical solution, the battery device can reduce the assembly space of the support component in the second direction. At the same time, the flanges on both sides of the thermal management component in the second direction can improve the structural strength of the thermal management component, so that the support component can stably support the upper battery cell assembly.

[0009] In some embodiments, the box body includes two first beams arranged opposite each other along a first direction and two second beams arranged opposite each other along a second direction, the two first beams and the two second beams enclosing an accommodating space, the first direction being the length direction of the box body; the support frame includes at least one longitudinal beam and two first mounting beams, the longitudinal beams extending along the first direction, the first mounting beams extending along the second direction and intersecting with the longitudinal beams, and the two first mounting beams being fixedly connected to the two first beams respectively.

[0010] By adopting the above technical solution, the support frame includes at least one longitudinal beam and two first mounting beams. The two first mounting beams are fixedly connected to the two first beam bodies respectively, realizing the fixed connection between the support components and the box body, and the connection reliability is high.

[0011] In some embodiments, the support frame further includes at least one second mounting beam, which is disposed between two first mounting beams and intersects with the longitudinal beams. The two ends of the second mounting beam are respectively fixedly connected to the two second beams.

[0012] By adopting the above technical solution, both ends of the support frame along the first direction and both ends along the second direction are fixedly connected to the box body, which further improves the installation stability of the support components.

[0013] In some embodiments, the number of anti-overflow adhesive components is multiple, including a first anti-overflow adhesive component and a second anti-overflow adhesive component. The first anti-overflow adhesive component is attached to the flange and the first mounting beam, and the second anti-overflow adhesive component is attached to the flange and the second mounting beam.

[0014] By adopting the above technical solution, both the first and second anti-overflow adhesive components can stop the structural adhesive. The flange and multiple anti-overflow adhesive components surround the thermal management component, making it difficult for the structural adhesive to overflow from the support frame. The anti-overflow adhesive effect of the support component is good.

[0015] In some embodiments, the first anti-overflow adhesive extends along the first mounting beam and conforms to the edge of the thermal management component and the first mounting beam.

[0016] By adopting the above technical solution, the first anti-overflow adhesive component can prevent structural adhesive from flowing out from the connection between the first mounting beam and the thermal management component, and the structural adhesive is less likely to overflow onto the first beam body from below the first mounting beam, further improving the anti-overflow adhesive effect of the support component.

[0017] In some embodiments, the first beam and the second beam are respectively provided with a first connecting hole, and the first mounting beam and the second mounting beam are respectively provided with a second connecting hole. The first connecting hole and the second connecting hole are provided in a one-to-one correspondence and are used to pass through the first connecting member.

[0018] By adopting the above technical solution, the support frame is detachably connected to the housing through the first connector, so that the support component as a whole can be easily installed on and removed from the housing; the first connector passes through the support frame, which is less likely to damage the thermal management component or adjacent components due to improper operation, thereby improving the convenience of assembling and maintaining the battery device and reducing the difficulty and cost of maintenance.

[0019] In some embodiments, the second mounting beam includes a mounting crossbeam and mounting brackets disposed at both ends of the mounting crossbeam along a second direction. The second beam body is provided with a receiving groove, and the mounting brackets are at least partially accommodated in the receiving groove. The mounting brackets are provided with a second connecting hole, and the mounting brackets are fixedly connected to the second beam body through a first connector.

[0020] By adopting the above technical solution, the mounting bracket at the end of the second mounting beam can be at least partially accommodated in the receiving groove of the second beam, saving the space occupied by the second mounting beam, which is conducive to reducing structural gaps and improving the space utilization rate of the battery device.

[0021] In some embodiments, the mounting bracket includes a first mounting portion and two second mounting portions. The first mounting portion is at least partially disposed within a receiving groove and extends along a third direction, which is the height direction of the housing. The two second mounting portions are respectively disposed on opposite sides of the first mounting portion along a first direction. The second mounting portions and a portion of the second beam are stacked together along a third direction. The second mounting portions are provided with second connecting holes.

[0022] By placing the first mounting part inside the receiving groove, the space occupied by the mounting bracket can be reduced.

[0023] In some embodiments, the flange has a notch communicating with the receiving groove, and the end of the mounting beam passes through the notch and extends into the receiving groove.

[0024] By adopting the above technical solution, the gap can avoid the installation beam, the battery device has a more compact structure, and the space utilization rate is high.

[0025] In some embodiments, the support component further includes an anti-overflow adhesive element disposed on the surface of the thermal management component, the anti-overflow adhesive element being fixed to the connection between the flange and the second mounting beam.

[0026] By adopting the above technical solutions, the flange and anti-overflow adhesive parts can prevent structural adhesive from overflowing outside the thermal management components, thus improving the convenience of maintaining the battery device.

[0027] In some embodiments, at least one of the first mounting beam and the second mounting beam is provided with a module connection hole for connecting the battery cell assembly.

[0028] By adopting the above technical solution, the support frame can be fixedly connected to the battery cell assembly through the module connection hole, and the battery cell assembly in the upper space is not easy to shake, thus improving the installation stability of the upper battery cell assembly.

[0029] In some embodiments, the first beam includes a first outer beam and a first inner beam disposed inside the first outer beam, the first inner beam being lower than the first outer beam, and a first mounting beam being fixedly connected to the first inner beam; and / or, the second beam includes a second outer beam and a second inner beam disposed inside the second outer beam, the second inner beam being lower than the second outer beam, and the end of the second mounting beam being fixedly connected to the second inner beam.

[0030] By adopting the above technical solution, the first mounting beam is fixedly connected to the first inner beam, and / or the second mounting beam is fixedly connected to the second inner beam, which enables the thermal management component to be fixed at an appropriate height inside the box, so that the thermal management component divides the receiving cavity into an upper space and a lower space.

[0031] In some embodiments, the thermal management component has a first fixing hole, the support frame has a second fixing hole, and the support frame is fixedly connected to the thermal management component by a second connector passing through the first fixing hole and the second fixing hole.

[0032] By adopting the above technical solution, the support frame and the thermal management component are fixedly connected by the second connector. The connection structure between the support frame and the thermal management component is relatively simple and the assembly method is relatively efficient.

[0033] An embodiment of the second aspect of this application provides an electrical device, including a battery device as described in the first aspect, the battery device being used to store or provide electrical energy.

[0034] 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

[0035] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the structure of a vehicle provided in one embodiment of this application;

[0037] Figure 2 This is an exploded view of a battery device provided in an embodiment of this application;

[0038] Figure 3 This is an exploded view of a single battery cell provided in an embodiment of this application;

[0039] Figure 4 This is a schematic diagram of the structure of a battery device provided in an embodiment of this application;

[0040] Figure 5 yes Figure 4 A partial enlarged view of part A in the battery device shown;

[0041] Figure 6 This is a schematic diagram of the structure of a thermal management component provided in some embodiments of this application;

[0042] Figure 7 yes Figure 6 A partial enlarged view of part B in the thermal management component shown;

[0043] Figure 8 yes Figure 4 Top view of the battery device shown;

[0044] Figure 9 yes Figure 4 An exploded perspective view of the battery device shown.

[0045] Figure 10 yes Figure 9 A three-dimensional schematic diagram of the supporting components in the battery device shown.

[0046] Figure 11 yes Figure 10 A three-dimensional schematic diagram of the support frame in the support component shown.

[0047] The markings in the diagram mean:

[0048] 1000, Vehicle; 100, Battery assembly;

[0049] 10. Box body; 11. Upper box body; 12. Lower box body; 101. Accommodation space; 1011. Upper space; 1012. Lower space; 124. First connecting hole; 121. First beam; 1211. First outer beam; 1212. First inner beam; 122. Second beam; 1221. Second outer beam; 1222. Second inner beam; 1223. Accommodation groove;

[0050] 20. Battery cell assembly; 21. Battery cell; 211. Housing; 212. End cap; 213. Electrode assembly; 214. Electrode terminal; 215. Pressure relief mechanism;

[0051] 30. Support component; 31. Thermal management component; 311. Flanged edge; 3111. Notch; 312. First plate; 313. Second plate; 314. First fixing hole; 32. Support frame; 3201. Module connection hole; 3202. Second connection hole; 3203. Second fixing hole; 321. Longitudinal beam; 322. First mounting beam; 323. Second mounting beam; 3231. Mounting crossbeam; 3232. Mounting bracket; 3232a. First mounting part; 3232b. Second mounting part; 33. First connector; 34. Anti-overflow adhesive component; 341. First anti-overflow adhesive component; 342. Second anti-overflow adhesive component. Detailed Implementation

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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).

[0058] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not 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.

[0059] 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.

[0060] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions.

[0061] Unless otherwise specified, all technical features and optional technical features of this application may be combined to form new technical solutions.

[0062] Currently, the power batteries of new energy vehicles typically employ dual-layer battery cell modules to improve energy density. The upper battery cell module is usually fixed above the lower battery cell module by support components, which include fixedly connected thermal management components and a support frame, with the edges of the support frame fixed to the side beams of the housing. However, in some cases, the assembly stability of the support components is poor, and they are prone to structural loosening or fatigue damage due to vehicle vibration, mechanical impact, etc. In severe cases, this can even cause displacement or structural failure of the upper battery cell module, affecting the assembly stability of the upper battery cell module.

[0063] In view of this, embodiments of this application provide a battery device, including a housing, multiple battery cell assemblies, and a supporting component, including a thermal management component and a supporting frame fixed to the thermal management component. The thermal management component divides the accommodating space into an upper space and a lower space arranged vertically. The multiple battery cell assemblies are respectively disposed in the upper space and the lower space. The thermal management component supports the battery cell assemblies in the upper space. Flanges are provided on opposite sides of the thermal management component. The supporting frame is fixedly connected to the housing to fix the thermal management component within the accommodating space.

[0064] In the battery device provided in this application embodiment, the support component includes a thermal management component and a support frame fixed to the thermal management component. The thermal management component is fixed within the accommodating space by the support frame. The thermal management component can support the battery cell assembly in the upper space. Since the thermal management component has flanges on opposite sides, the flanges can improve the structural strength of the thermal management component, making it less prone to deformation or cracking. The aforementioned support component is less likely to experience structural loosening or fatigue damage due to vehicle vibration, mechanical impact, etc., thereby reducing the risk of displacement or structural failure of the upper battery cell assembly. Therefore, the aforementioned battery device can effectively improve the assembly stability of the upper battery cell assembly.

[0065] The technical solutions described in the embodiments of this application are applicable to battery devices and electrical devices that use battery devices.

[0066] In this embodiment of the application, the battery cell can be a secondary battery, which refers to a battery cell that can be recharged to activate the active materials and continue to be used after the battery cell has been discharged.

[0067] The battery cell can be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, etc., and the embodiments of this application are not limited to this.

[0068] The battery device disclosed in this application can be used in electrical devices that use the battery device as a power source or in various energy storage systems that use the battery device as an energy storage element. Electrical devices include, for example, mobile phones, portable devices, laptops, electric vehicles, electric toys, power tools, vehicles, ships, and spacecraft. Spacecraft include, for example, airplanes, rockets, space shuttles, and spacecraft.

[0069] 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.

[0070] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle 1000 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 provided 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.

[0071] 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.

[0072] refer to Figure 2 , Figure 2 This is an exploded structural diagram of a battery device 100 provided in some embodiments of this application. The battery device mentioned in the embodiments of this application may include one or more battery cell assemblies 20 for providing voltage and capacity. A battery cell assembly 20 may include multiple battery cells 21, which are connected in series, parallel, or mixed connections via busbars.

[0073] In some embodiments, the multiple battery cells 21 in the battery device 100 can be electrically connected through a busbar to achieve parallel, series, or mixed connection of the multiple battery cells 21 in the battery device 100.

[0074] In some embodiments, the battery cell assembly 20 is typically formed by arranging multiple battery cells 21; as an example, the battery cell assembly 20 can be a battery module, which is formed by arranging and fixing multiple battery cells 21 into an independent module. As an example, a battery module can be formed by bundling multiple battery cells 21 together with cable ties.

[0075] In some embodiments, the battery device 100 may be a battery pack, which includes a housing 10 and one or more battery cell assemblies 20, the battery cell assemblies 20 being housed within the housing 10.

[0076] As an example, the battery cell assembly 20 can be a battery module, which can be housed in the housing 10 by fixing the battery module in the housing 10.

[0077] As an example, the battery cell assembly 20 can also be housed in the housing 10 by directly fixing multiple battery cells 21 to the housing 10.

[0078] As an example, the housing 10 may include an upper housing 11 and a lower housing 12. The upper housing 11 and the lower housing 12 are fastened together to form a closed receiving cavity inside the housing 10 to house the battery cell assembly 20. Here, "closed" means covered or closed, and can be either sealed or unsealed.

[0079] As an example, the housing 10 may include a top cover, a frame, and a bottom plate. The top cover and the bottom plate are respectively connected to the frame, so that the interior of the housing 10 forms a closed receiving cavity to house the battery cell assembly 20.

[0080] As an example, the housing 10 can be part of the chassis structure of the vehicle 1000. For example, the top cover of the housing 10 can be at least part of the floor of the vehicle 1000, or the frame of the housing 10 can be at least part of the crossbeams and longitudinal beams of the vehicle 1000.

[0081] In some embodiments, battery device 100 refers to an energy storage device, which includes a housing 10, and at least one side of the housing 10 has a door. The energy storage device includes energy storage containers, energy storage cabinets, etc.

[0082] Please refer to Figure 3 The battery cell 21 is the smallest unit that makes up the battery device. The battery cell 21 includes a housing 211, an end cap 212, an electrode assembly 213, and other functional components.

[0083] End cap 212 refers to a component that covers the opening of housing 211 to isolate the internal environment of battery cell 21 from the external environment. The shape of end cap 212 can be adapted to the shape of housing 211 to fit it. Optionally, end cap 212 can be made of a material with certain hardness and strength (such as aluminum alloy), so that end cap 212 is not easily deformed under pressure and impact, giving battery cell 21 higher structural strength and improved reliability. Functional components such as electrode terminals 214 and pressure relief mechanism 215 can be provided on end cap 212. Electrode terminals 214 can be used for electrical connection with electrode assembly 213 for outputting or inputting electrical energy to battery cell 21. In some embodiments, pressure relief mechanism 215 is used to release internal pressure when the internal pressure or temperature of battery cell 21 reaches a threshold. The material of end cap 212 can also be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and this application embodiment does not impose any special limitations on this. In some embodiments, an insulating element may also be provided on the inner side of the end cap 212 to reduce the risk of short circuit. For example, the insulating element may be made of plastic, rubber, etc.

[0084] The housing 211 is a component used to cooperate with the end cap 212 to form the internal environment of the battery cell 21. This internal environment can accommodate the electrode assembly 213, electrolyte, and other components. The housing 211 and the end cap 212 can be independent components. An opening can be provided on the housing 211, and the end cap 212 can be used to close the opening to form the internal environment of the battery cell 21. Alternatively, the end cap 212 and the housing 211 can be integrated. Specifically, the end cap 212 and the housing 211 can form a common connecting surface before other components are inserted into the housing. When it is necessary to encapsulate the interior of the housing 211, the end cap 212 closes the housing 211. The housing 211 can have various shapes and sizes, such as cuboid, cylindrical, or hexagonal prism. Specifically, the shape of the housing 211 can be determined according to the specific shape and size of the electrode assembly 213. The shell 211 can be made of various materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc. This application embodiment does not impose any special restrictions on this.

[0085] Electrode assembly 213 is the component in the battery cell 21 where the electrochemical reaction occurs. The housing 211 may contain one or more electrode assemblies 213. The electrode assembly 213 is mainly formed by winding or stacking positive and negative electrode sheets, and typically a separator is provided between the positive and negative electrode sheets. The portions of the positive and negative electrode sheets containing active material constitute the main body of the electrode assembly 213, while the portions of the positive and negative electrode sheets without active material each constitute a tab. The positive and negative tabs may be located together at one end of the main body or at opposite ends of the main body. During the charging and discharging process of the battery device 100, the positive and negative active materials react with the electrolyte, and the tabs connect to the electrode terminals 214 to form a current loop. In some embodiments, a pressure relief mechanism 215 is provided on one side of the battery cell 21. The pressure relief mechanism 215 is an element or component that is actuated to release internal pressure when the internal pressure or temperature of the battery cell 21 reaches a predetermined threshold.

[0086] Please refer to Figures 2 to 9 The first aspect of this application provides a battery device 100, which includes a housing 10, a plurality of battery cell assemblies 20, and a support component 30. The housing 10 has a receiving space 101, in which the plurality of battery cell assemblies 20 are disposed. The support component 30 includes a thermal management component 31 and a support frame 32 fixed to the thermal management component 31. The thermal management component 31 divides the receiving space 101 into an upper space 1011 and a lower space 1012 arranged vertically. The plurality of battery cell assemblies 20 are respectively disposed in the upper space. The upper space 1011 and the lower space 1012 are connected. The thermal management component 31 supports the battery cell assembly 20 in the upper space 1011. The thermal management component 31 has flanges 311 on opposite sides, with the flanges 311 located on the side of the thermal management component 31 facing the upper space 1011. The support frame 32 is fixedly connected to the housing 10 to fix the thermal management component 31 in the housing space 101. Structural adhesive is provided between the battery cell assembly 20 in the upper space 1011 and the thermal management component 31. The anti-overflow adhesive component 34 is fixed at the connection between the flanges 311 and the support frame 32.

[0087] Box 10 can be any of the aforementioned boxes. Figure 4 The lower housing 12 is illustrated in the battery assembly 100 shown. The battery cell assembly 20 is formed by arranging multiple battery cells 21; as an example, the battery cell assembly 20 can be a battery module, which is formed by arranging and fixing multiple battery cells 21 into a single module. As an example, a battery module can be formed by binding multiple battery cells 21 together with cable ties.

[0088] The support component 30 is used to support and fix the upper battery cell assembly 20. The support component 30 includes a thermal management component 31 and a support frame 32, and the thermal management component 31 is fixed inside the housing 10 by the support frame 32.

[0089] The thermal management component 31 is used for temperature control and heat dissipation of the battery cell assembly 20. Exemplarily, the thermal management component 31 has a flow channel structure and a liquid inlet communicating with the flow channel structure, through which coolant flows to dissipate heat from the battery cell assembly 20. The coolant includes, but is not limited to, water, antifreeze, or ethanol. Exemplarily, the material of the thermal management component 31 includes, but is not limited to, high-strength and easily machinable metal materials such as aluminum alloy and titanium alloy. Exemplarily, the thermal management component 31 is a liquid cooling plate, and the shape of the liquid cooling plate is approximately square.

[0090] The thermal management component 31 divides the accommodating space 101 into an upper space 1011 and a lower space 1012 arranged vertically. A number of battery cell modules 20 are located in the lower space 1012 and a number of battery cell modules 20 are located in the upper space 1011. The thermal management component 31 can support the battery cell modules 20 in the upper space 1011 and can also perform thermal management on the battery cell modules 20 in the upper space 1011.

[0091] The heat management component 31 has flanges 311 on its opposite sides. For example, the heat management component 31 has flanges 311 on both sides along its width direction. It can be understood that the heat management component 31 may also have flanges on both sides along its length direction, or flanges 311 on multiple sides simultaneously. The flange 311 refers to a straight edge that is bent upward or downward into a straight flange at a certain angle in the edge area of ​​the heat management component 31 through a specific process. The forming process of the flange 311 can be stamping, bending, etc. The angle between the flange 311 and the surface of the heat management component 31 can be 90 degrees, or it can be an acute angle or an obtuse angle. By providing flanges 311 on the edge of the heat management component 31, the rigidity and strength of the heat management component 31 can be enhanced, and the structural stability of the support component 30 can be improved.

[0092] The thermal management component 31 has flanges 311 on both sides, forming a "pocket" effect. The "pocket" effect (also known as "pocket function" or "pocket structure") is a functional design in sheet metal processing and structural design that uses the geometry formed by flanges to enhance local stiffness, resist deformation, or protect edges. Its core principle is to form a "pocket-shaped" or "groove-shaped" closed / semi-closed structure by flanges in a specific direction, and use the geometric stability of the structure itself to provide support and protection.

[0093] The support frame 32 is fixedly connected to the thermal management component 31. The support frame 32 can be of various frame structures, such as a contoured frame, a U-shaped frame, or a cross-shaped frame. The support frame 32 can be fixedly connected to the thermal management component 31 by means of fasteners, welding, etc. At the same time, the support frame 32 is fixedly connected to the housing 10, so that the thermal management component 31 can be fixed inside the housing 10 by means of the support frame 32. The support frame 32 can be fixedly connected to the housing 10 by means of fasteners, welding, etc. By forming the support frame 32 and the thermal management component 31 into an integral structure, it is beneficial to achieve a compact spatial layout and solve the problems of loose structure and space redundancy in the double-layer module.

[0094] Structural adhesive is provided between the battery cell assembly 20 in the upper space 1011 and the thermal management component 31. The structural adhesive has high strength and high adhesion, and by using it to bond the battery cell assembly 20 in the upper space 1011 to the thermal management component 31, a stable connection between the battery cell assembly 20 and the thermal management component is achieved. The structural adhesive also has good thermal conductivity, which facilitates direct heat transfer between the thermal management component 31 and the battery cell assembly 20, improving heat dissipation efficiency and extending the service life of the battery device 100.

[0095] Optionally, the structural adhesive can be a UV adhesive, an epoxy structural adhesive, or a high-temperature resistant hot melt adhesive.

[0096] Optionally, one side of the battery cell assembly 20 in the upper space 1011 is fixed to one side of the thermal management component 31 with structural adhesive, and one side of the battery cell assembly 20 in the lower space 1012 is fixed to the other side of the thermal management component 31 with structural adhesive, so as to improve the stability of the connection between the battery cell assembly 20 and the thermal management component 31.

[0097] The flange 311 faces the upper battery cell module 20, so that the flange 311 can cover the structural adhesive and reduce the risk of adhesive overflow.

[0098] The anti-overflow adhesive component 34 is fixed at the connection between the flange 311 and the support frame 32. The anti-overflow adhesive component 34 can seal the gap between the flange 311 and the support frame 32 to prevent structural adhesive from overflowing.

[0099] When assembling the battery device 100, the support frame 32 is first fixedly connected to the thermal management component 31 to form an integral support component 30; the lower battery cell assembly 20 is placed inside the housing 10; the thermal management component 31 and the support frame 32 are placed inside the housing 10, and the support frame 32 is fixedly connected to the housing 10, with the flange 311 of the thermal management component 31 facing the inner wall of the housing 10; and then the upper battery cell assembly 20 is set above the thermal management component 31.

[0100] In the battery device 100 provided in this application embodiment, the support component 30 includes a thermal management component 31 and a support frame 32 fixed on the thermal management component 31. The thermal management component 31 is fixed in the accommodating space 101 through the support frame 32. The thermal management component 31 can support the battery cell assembly 20 in the upper space 1011. Since the thermal management component 31 has flanges 311 on opposite sides, the flanges 311 can improve the structural strength of the thermal management component 31 itself, making the thermal management component 31 less prone to deformation and cracking. The aforementioned support component 30 is less likely to become loose or suffer fatigue damage due to vehicle vibration, mechanical impact, etc., thereby reducing the risk of displacement or structural failure of the upper battery cell assembly 20. At the same time, the battery cell assembly 20 in the upper space 1011 is attached to the thermal management component 31 with structural adhesive, which can make the connection between the battery cell assembly 20 and the thermal management component 31 stable. Furthermore, the flanges 311 and the anti-overflow adhesive component 34 can cover the structural adhesive, which can reduce the risk of structural adhesive overflow. Therefore, the battery device 100 described above can effectively improve the assembly stability of the upper battery cell assembly 20.

[0101] In some embodiments, the flange 311 of the thermal management component 31 may be fitted and connected to the battery cell assembly 20 of the upper space 1011, that is, the flange 311 wraps around the side of the battery cell assembly 20 of the upper space 1011. The flange 311 may also have a gap with the battery cell assembly 20.

[0102] In some cases, the heat conduction path between the thermal management component 31 and the battery cell assembly 20 is easily affected by assembly errors or deformation caused by thermal expansion and contraction, resulting in increased interface thermal resistance and a gradual decrease in heat dissipation efficiency over time, which in turn affects the thermal management performance and cycle life of the battery device 100.

[0103] By adopting the above technical solution, the flange 311 of the thermal management component 31 is opposite to the battery cell assembly 20 in the upper space 1011. The thermal management component 31 is not easily deformed, which reduces the risk of affecting the heat conduction path due to deformation and improves the heat dissipation reliability of the upper battery cell assembly 20.

[0104] In some embodiments, the support frame 32 is fixedly connected to the housing 10 at its opposite ends along the first direction X, and the thermal management component 31 is provided with flanges 311 on its opposite sides along the second direction Y, with the first direction X being perpendicular to the second direction Y.

[0105] The support frame 32 is fixedly connected to the housing 10 at its opposite ends along the first direction X. For example, the support frame 32 is fixedly connected to the housing 10 by welding, bonding, fastener connection, or other methods. In this way, the support frame 32 can achieve a fixed connection with the housing 10.

[0106] In the second direction Y, the support frame 32 can omit or reduce the fixed points that are fixed to the housing 10, so as to save the installation space occupied by the support component 30 in the second direction Y, reduce the installation gap, and improve the compactness of the housing 10, thereby improving the energy density of the battery device 100. At the same time, the flanges 311 on both sides of the thermal management component 31 along the second direction Y can improve the structural strength of the thermal management component 31. Thus, the battery device 100 can reduce the assembly space in the second direction Y. Meanwhile, the flanges 311 on both sides of the thermal management component 31 along the second direction Y can improve the structural strength of the thermal management component 31, so that the support component 30 can stably support the upper battery cell assembly 20.

[0107] Optionally, along the second direction Y, the flange 311 and the inner wall of the housing 10 may be provided with a gap to facilitate the discharge of thermal runaway gas generated by the lower battery cell assembly.

[0108] In some embodiments, the box body 10 includes two first beams 121 arranged opposite each other along a first direction X and two second beams 122 arranged opposite each other along a second direction Y. The two first beams 121 and the two second beams 122 enclose a receiving space 101. The first direction X is the length direction of the box body 10. The support frame 32 includes at least one longitudinal beam 321 and two first mounting beams 322. The longitudinal beam 321 extends along the first direction X, and the first mounting beams 322 extend along the second direction Y and intersect with the longitudinal beam 321. The two first mounting beams 322 are respectively fixedly connected to the two first beams 121.

[0109] The box body 10 includes two first beams 121 and two second beams 122, and the box body 10 is rectangular or roughly rectangular.

[0110] The longitudinal beam 321 extends along the length of the housing 10, and the first mounting beam 322 extends along the width of the housing 10. The first mounting beam 322 is perpendicularly connected to the longitudinal beam 321. The first mounting beam 322 and the longitudinal beam 321 can be an integral structure or can be fixedly connected by welding or other methods. At least one of the first mounting beam 322 and the longitudinal beam 321 is fixedly connected to the thermal management component 31.

[0111] Two first mounting beams 322 are fixedly connected to two first beam bodies 121 respectively. Optionally, the first mounting beams 322 and the first beam bodies 121 are stacked and fixedly connected by the first connector. It can be understood that the first mounting beams 322 and the first beam bodies 121 can also be fixedly connected by welding or other methods.

[0112] The support frame 32 includes intersecting longitudinal beams 321 and mounting beams, establishing a multi-directional force transmission path. The support frame 32 can disperse stress and enhance the local structural strength. The support frame 32 and the thermal management component 31 form a frame that shares the load, significantly improving the vibration and impact resistance of the upper battery cell assembly 20.

[0113] By adopting the above technical solution, the support frame 32 includes at least one longitudinal beam 321 and two first mounting beams 322. The two first mounting beams 322 are respectively fixedly connected to the two first beam bodies 121, realizing the fixed connection between the support component 30 and the box body 10, and the connection reliability is high.

[0114] In some embodiments, the support frame 32 further includes at least one second mounting beam 323, which is disposed between two first mounting beams 322 and intersects with the longitudinal beam 321. The two ends of the second mounting beam 323 are respectively fixedly connected to two second beam bodies 122.

[0115] For example, the support frame 32 includes two second mounting beams 323. Optionally, the second mounting beams 323 extend along a second direction Y; it is understood that the second mounting beams 323 may also be inclined with respect to the second direction Y.

[0116] The two ends of the second mounting beam 323 are fixedly connected to the two second beams 122, respectively. In this way, both ends of the support frame 32 along the first direction X and both ends along the second direction Y are fixedly connected to the box body 10, further improving the installation stability of the support component 30. In addition, by setting the second mounting beam 323, the structural strength of the support frame 32 is improved, and the support frame 32 can distribute stress in multiple directions, reducing the risk of deformation of the thermal management component 31.

[0117] In some embodiments, the number of anti-overflow adhesive components 34 is multiple, and the multiple anti-overflow adhesive components 34 include a first anti-overflow adhesive component 341 and a second anti-overflow adhesive component 342. The first anti-overflow adhesive component 341 is attached to the flange 311 and the first mounting beam 322, and the second anti-overflow adhesive component 342 is attached to the flange 311 and the second mounting beam 323.

[0118] The first anti-overflow adhesive component 341 is attached to the flange 311 and the first mounting beam 322, and can prevent structural adhesive from overflowing from the connection between the flange 311 and the first mounting beam 322; the second anti-overflow adhesive component 342 is attached to the flange 311 and the second mounting beam 323, and can prevent structural adhesive from overflowing from the connection between the flange 311 and the second mounting beam 323.

[0119] Thus, both the first anti-overflow adhesive component 341 and the second anti-overflow adhesive component 342 can stop the structural adhesive. The flange 311 and multiple anti-overflow adhesive components 34 surround the thermal management component 31, making it difficult for the structural adhesive to overflow from the support frame 32. The anti-overflow adhesive effect of the support component 30 is good.

[0120] In some embodiments, the first anti-overflow adhesive element 341 extends along the first mounting beam 322 and is attached to the edge of the thermal management component 31 and the first mounting beam 322.

[0121] The first mounting beam 322 is generally strip-shaped, and there may be an assembly gap between the first mounting beam and the thermal management component 31. The first anti-overflow adhesive component 341 is elongated and extends along the first mounting beam 322. In this way, the first anti-overflow adhesive component 341 can prevent structural adhesive from flowing out from the connection between the first mounting beam 322 and the thermal management component 31, and the structural adhesive is less likely to overflow from below the first mounting beam 322 onto the first beam body 121, further improving the anti-overflow adhesive effect of the support component 30.

[0122] In some embodiments, the first beam 121 and the second beam 122 are respectively provided with a first connecting hole 124, and the first mounting beam 322 and the second mounting beam 323 are respectively provided with a second connecting hole 3202. The first connecting hole 124 and the second connecting hole 3202 are provided in a one-to-one correspondence and are used to pass through the first connecting member 33.

[0123] Optionally, the first beam 121 and the second beam 122 are provided with a plurality of first connecting holes 124 at intervals, and the first mounting beam 322 and the second mounting beam 323 are provided with second connecting holes 3202 at intervals. In this way, there are more fixing points between the support frame 32 and the box 10, which improves the installation reliability of the support component 30.

[0124] The first connector 33 is detachably inserted into the first connecting hole 124 and the corresponding second connecting hole 3202, so that the support frame 32 is fixedly connected to the housing 10. The first connector 33 can be a bolt or a screw or other fastener.

[0125] Optionally, the first connector 33 is a bolt. Furthermore, multiple first connectors 33 can have the same structure, so that a standard bolt set can be used for fastening, reducing assembly difficulty and improving assembly efficiency.

[0126] By adopting the above technical solution, the support frame 32 is detachably connected to the housing 10 via the first connector 33, so that the support component 30, as a whole, can be easily installed on and removed from the housing 10. The first connector 33 passes through the support frame 32, and the support component 30 can be easily removed by disassembling the first connector 33 during subsequent maintenance or replacement of the battery cell assembly 20. This prevents damage to the thermal management component 31 or adjacent components due to improper operation, improves the convenience of assembling and maintaining the battery device 100, and reduces the difficulty and cost of maintenance.

[0127] In some embodiments, the second mounting beam 323 includes a mounting crossbeam 3231 and mounting brackets 3232 disposed at both ends of the mounting crossbeam 3231 along the second direction Y. The second beam body 122 is provided with a receiving groove 1223. The mounting brackets 3232 are at least partially accommodated in the receiving groove 1223. The mounting brackets 3232 are fixedly connected to the second beam body 122 by a first connector 33.

[0128] The mounting beam 3231 extends along the second direction Y and intersects with the longitudinal beam 321. The space formed by the intersection of the mounting beam 3231 and the longitudinal beam 321 is sufficient to install the battery module.

[0129] Mounting brackets 3232 are provided at both ends of the mounting beam 3231 along the second direction Y. The two mounting brackets 3232 are used to connect the two second beams 122 respectively. The second beam 122 is provided with a receiving groove 1223 at the corresponding second mounting beam 323. Optionally, the opening of the receiving groove 1223 is located on the side of the second beam 122 away from the lower space 1012.

[0130] The mounting bracket 3232 is at least partially accommodated within the receiving groove 1223, saving the space occupied by the mounting bracket 3232. The second beam 122 is provided with a first connecting hole 124, and the mounting bracket 3232 is provided with a second connecting hole 3202, so that the mounting bracket 3232 is fixedly connected to the second beam 122 through connectors passing through the first connecting hole 124 and the second connecting hole 3202.

[0131] By adopting the above technical solution, the mounting bracket 3232 at the end of the second mounting beam 323 can be at least partially accommodated in the receiving groove 1223 of the second beam 122, saving the space occupied by the second mounting beam 323, which is conducive to reducing structural gaps and improving the space utilization rate of the battery device 100.

[0132] In some cases, the two ends of the support component along the second direction Y are respectively connected to two second beams through two crossbeams. The support component 30 provided in this application embodiment omits the two crossbeams, saving the assembly space occupied by the support component 30 in the second direction Y and improving the compactness of the structure.

[0133] Please refer to Figure 5 In some embodiments, the mounting bracket 3232 includes a first mounting portion 3232a and two second mounting portions 3232b. The first mounting portion 3232a is at least partially disposed within the receiving groove 1223 and extends along a third direction Z, where the third direction Z is the height direction of the housing 10. The two second mounting portions 3232b are respectively disposed on opposite sides of the first mounting portion 3232a along a first direction X. The second mounting portions 3232b and a portion of the second beam 122 are stacked along a third direction. The second mounting portions 3232b are provided with second connecting holes 3202.

[0134] The mounting bracket 3232 is roughly T-shaped. Along the third direction, the height of the second mounting part 3232b is less than the height of the first mounting part 3232a. The second mounting part 3232b is stacked on the second beam 122, and the second connecting hole 3202 is provided in the second mounting part 3232b.

[0135] Optionally, the first mounting part 3232a is fixedly connected to the end of the mounting beam 3231 by fasteners such as screws.

[0136] The mounting bracket 3232 provided in this embodiment includes a first mounting part 3232a and two second mounting parts 3232b. By placing the first mounting part 3232a in the receiving groove 1223, the space occupied by the mounting bracket 3232 can be reduced. By stacking the second mounting parts 3232b with the second beam 122, and passing the first connector 33 through the second mounting parts 3232b and the second beam 122, a fixed connection between the second mounting beam 323 and the second beam 122 can be achieved. Thus, along the third direction, the second mounting part 3232b can be set with a smaller height, which facilitates the installation of the first connector 33 and reduces the space occupied by the second mounting part 3232b.

[0137] In some embodiments, the thermal management component 31 has flanges 311 on both sides along the second direction Y, and the flanges 311 have notches 3111 that communicate with the receiving groove 1223. The end of the mounting beam 3231 passes through the notches 3111 and extends into the receiving groove 1223.

[0138] The length of the flange 311 can be the same as the length of the thermal management component 31. The flange 311 has a notch 3111, which is used to avoid the mounting beam 3231, so that the end of the mounting beam 3231 can extend into the receiving groove 1223. By adopting the above technical solution, the assembly gap between components is reduced, the structure of the battery device 100 is more compact, and the space utilization rate is high.

[0139] Optionally, the anti-overflow adhesive part 34 is set with a notch 3111 corresponding to the flange 311.

[0140] In some embodiments, at least one of the first mounting beam 322 and the second mounting beam 323 is provided with a module connection hole 3201 for connecting the battery cell assembly 20.

[0141] The upper battery cell assembly 20 can be formed into one or more battery modules. The module connection holes 3201 of the first mounting beam 322 and / or the second mounting beam 323 are used for fixed connection with the battery modules, so that the battery modules are fixed on the support member 30 and the battery modules are not easy to shake. Optionally, the module connection holes 3201 are used for fasteners such as screws to pass through. The battery module includes a module base plate and / or a module end plate, and the fasteners pass through both the module connection holes 3201 and the connection holes of the module base plate or the module end plate.

[0142] For example, the second mounting beam 323 is provided with multiple module connection holes 3201.

[0143] By adopting the above technical solution, the support frame 32 can be fixedly connected to the battery cell assembly 20 through the module connection hole 3201, and the battery cell assembly 20 in the upper space 1011 is not easy to shake, thus improving the installation stability of the upper battery cell assembly 20.

[0144] In some embodiments, the first beam 121 includes a first outer beam 1211 and a first inner beam 1212 disposed inside the first outer beam 1211, the first inner beam 1212 being lower than the first outer beam 1211, and a first mounting beam 322 being fixedly connected to the first inner beam 1212; and / or, the second beam 122 includes a second outer beam 1221 and a second inner beam 1222 disposed inside the second outer beam 1221, the second inner beam 1222 being lower than the second outer beam 1221, and the end of the second mounting beam 323 being fixedly connected to the second inner beam 1222.

[0145] The first beam 121 includes a first outer beam 1211 and a first inner beam 1212. The first outer beam 1211 and the first inner beam 1212 can be an integral structure or a fixedly connected separate structure. A first mounting beam 322 is fixedly connected to the first inner beam 1212. In some embodiments, the first mounting beam 322 is provided with a plurality of second connecting holes 3202, and the first inner beam 1212 is provided with a plurality of first connecting holes 124. The first mounting beam 322 is fixedly connected to the first beam 121 through a plurality of connectors. By setting the first mounting beam 322 to be connected to the first inner beam 1212, the first mounting beam 322 can be installed in the middle of the box 10.

[0146] The second beam 122 includes a second outer beam 1221 and a second inner beam 1222. The second outer beam 1221 and the second inner beam 1222 can be an integral structure or a fixedly connected separate structure. In some embodiments, the end of the second mounting beam 323 is stacked with the second beam 122 along the third direction Z and fixedly connected by the first connector 33. The height of the second mounting part 3232b is lower than the height of the first outer beam 1211 or flush with the first outer beam 1211.

[0147] By adopting the above technical solution, the first mounting beam 322 is fixedly connected to the first inner beam 1212, and / or the second mounting beam 323 is fixedly connected to the second inner beam 1222, which enables the thermal management component 31 to be fixed at an appropriate height inside the housing 10, so that the thermal management component 31 divides the receiving cavity into an upper space 1011 and a lower space 1012.

[0148] In some embodiments, the support frame 32 and the thermal management component 31 are fixedly connected by at least one of welding or fastener connection.

[0149] Optionally, the thermal management component 31 is provided with a first fixing hole 314, and the support frame 32 is provided with a second fixing hole 3203. Fasteners are inserted into the first fixing hole 314 and the second fixing hole 3203 to fix the support frame 32 and the thermal management component 31.

[0150] Optionally, the support frame 32 can also be fixedly connected to the thermal management component 31 by welding.

[0151] Optionally, the support frame 32 can be fixedly connected to the thermal management component 31 by welding or fastener connection.

[0152] By adopting the above technical solution, the support frame 32 and the thermal management component 31 are rigidly connected and have high connection strength, and the support component 30 has good stability.

[0153] In some embodiments, the thermal management component 31 is provided with a first fixing hole 314, and the support frame 32 is provided with a second fixing hole 3203. The support frame 32 is fixedly connected to the thermal management component 31 by a second connector passing through the first fixing hole 314 and the second fixing hole 3203.

[0154] For example, the second fixing hole 3203 is provided on the second mounting beam 323. Of course, the second fixing hole 3203 can also be provided on the first mounting beam 322.

[0155] By adopting the above technical solution, the support frame 32 and the thermal management component 31 are fixedly connected by the second connector. The connection structure between the support frame 32 and the thermal management component 31 is relatively simple and the assembly method is relatively efficient.

[0156] Please refer to Figures 4 to 7 In some embodiments, the thermal management component 31 includes a first plate 312 and a second plate 313 that are stacked and interconnected, the first plate 312 and the second plate 313 forming a heat exchange channel, and a flange 311 integrally connected to at least one of the first plate 312 and the second plate 313.

[0157] For example, the second plate 313 is located on the side of the first plate 312 facing the support frame 32, and the flange 311 is integrally connected to the second plate 313.

[0158] Thus, the flange 311 can be made on the edge of the first plate 312 and / or the second plate 313 by stamping or other processes, and the manufacturing method of the flange 311 is flexible and convenient.

[0159] Please refer to Figures 2 to 11 Some embodiments of this application provide a battery device 100, including a housing 10, a support component 30, and a plurality of battery cell assemblies 20. The support component 30 includes a thermal management component 31 and a support frame 32 fixed to the thermal management component 31. The thermal management component 31 divides the accommodating space 101 into an upper space 1011 and a lower space 1012 arranged vertically. The plurality of battery cell assemblies 20 are respectively disposed in the upper space 1011 and the lower space 1012. The thermal management component 31 supports the battery cell assemblies 20 in the upper space 1011. Flanges 311 are provided on opposite sides of the thermal management component 31. The housing 10 includes two first beams 121 arranged opposite each other along a first direction X and two second beams 122 arranged opposite each other along a second direction Y. The two first beams 121 and the two second beams 122 enclose an accommodating space. The first direction X is the length direction of the housing 10. The support frame 32 includes at least one longitudinal beam 321, two first mounting beams 322 and at least one second mounting beam 323. The two first mounting beams 322 are respectively fixedly connected to the two first beams 121 by first connectors 33. The two ends of the second mounting beams 323 are respectively fixedly connected to the two second beams 122 by first connectors 33. In the above-mentioned battery device 100, the connection between the support component 30 and the housing 10 has good reliability, reducing the installation gap and improving the compactness of the structure. Furthermore, the thermal management component 31 is not easily deformed or cracked, improving the assembly stability of the upper battery cell 21.

[0160] The battery device 100 provided in this application embodiment may be provided with a support member 30 and a double-layer battery cell assembly 20. It can be understood that the battery device 100 may also be provided with multiple support members 30, in which case the battery device may be provided with multiple layers of battery cell assembly 20.

[0161] The second aspect of this application provides an electrical device, including the battery device 100 of the first aspect, the battery device 100 being used to provide electrical energy to the electrical device.

[0162] The power supply device can be any of the aforementioned devices or systems that utilize battery device 100.

[0163] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A battery device, characterized in that, include: The container has storage space; Multiple battery cell assemblies are disposed within the accommodating space; The supporting component includes a thermal management component, a supporting frame fixed to the thermal management component, and an anti-overflow adhesive component. The thermal management component divides the accommodating space into an upper space and a lower space arranged vertically. Multiple battery cell assemblies are respectively disposed in the upper space and the lower space. The thermal management component supports the battery cell assemblies in the upper space. The thermal management component has flanges on opposite sides, with the flanges located on the side of the thermal management component facing the upper space. The supporting frame is fixedly connected to the housing to fix the thermal management component within the accommodating space. Structural adhesive is provided between the battery cell assemblies in the upper space and the thermal management component. The anti-overflow adhesive component is fixed at the connection between the flanges and the supporting frame.

2. The battery device as claimed in claim 1, characterized in that, The support frame is fixedly connected to the housing at its two opposite ends along the first direction, and the thermal management component is provided with flanges on its opposite sides along the second direction, wherein the first direction is perpendicular to the second direction.

3. The battery device as claimed in claim 2, characterized in that, The box body includes two first beams arranged opposite each other along the first direction and two second beams arranged opposite each other along the second direction. The two first beams and the two second beams enclose the receiving space. The first direction is the length direction of the box body. The support frame includes at least one longitudinal beam and two first mounting beams. The longitudinal beam extends along the first direction, and the first mounting beams extend along the second direction and intersect with the longitudinal beam. The two first mounting beams are respectively fixedly connected to the two first beam bodies.

4. The battery device as claimed in claim 3, characterized in that, The support frame further includes at least one second mounting beam, which is disposed between the two first mounting beams and intersects with the longitudinal beam. The two ends of the second mounting beam are respectively fixedly connected to the two second beam bodies.

5. The battery device as claimed in claim 4, characterized in that, The number of anti-overflow adhesive components is multiple, including a first anti-overflow adhesive component and a second anti-overflow adhesive component. The first anti-overflow adhesive component is attached to the flange and the first mounting beam, and the second anti-overflow adhesive component is attached to the flange and the second mounting beam.

6. The battery device as claimed in claim 5, characterized in that, The first anti-overflow adhesive extends along the first mounting beam and adheres to the edge of the thermal management component and the first mounting beam.

7. The battery device as claimed in claim 4, characterized in that, The first beam and the second beam are respectively provided with a first connecting hole, and the first mounting beam and the second mounting beam are respectively provided with a second connecting hole. The first connecting hole and the second connecting hole are arranged in a one-to-one correspondence and are used to pass through the first connecting member.

8. The battery device as claimed in claim 7, characterized in that, The second mounting beam includes a mounting crossbeam and mounting brackets located at both ends of the mounting crossbeam along the second direction. The second beam body has a receiving groove, and the mounting brackets are at least partially received in the receiving groove. The mounting brackets have a second connecting hole, and the mounting brackets are fixedly connected to the second beam body through the first connecting member.

9. The battery device as claimed in claim 8, characterized in that, The mounting bracket includes a first mounting part and two second mounting parts. The first mounting part is at least partially disposed within the receiving groove and extends along a third direction, which is the height direction of the box body. The two second mounting parts are respectively disposed on opposite sides of the first mounting part along the first direction. The second mounting parts and a portion of the second beam are stacked together along the third direction. The second mounting parts are provided with second connecting holes.

10. The battery device as claimed in claim 9, characterized in that, The flange has a notch that communicates with the receiving groove, and the end of the mounting beam passes through the notch and extends into the receiving groove.

11. The battery device as claimed in claim 10, characterized in that, The support component also includes an anti-overflow adhesive component disposed on the surface of the thermal management component, the anti-overflow adhesive component being fixed to the connection between the flange and the second mounting beam.

12. The battery device according to any one of claims 4-11, characterized in that, At least one of the first mounting beam and the second mounting beam is provided with a module connection hole for connecting the battery cell assembly.

13. The battery device according to any one of claims 4-11, characterized in that, The first beam includes a first outer beam and a first inner beam disposed inside the first outer beam. The first inner beam is lower than the first outer beam, and the first mounting beam is fixedly connected to the first inner beam; and / or, The second beam includes a second outer beam and a second inner beam disposed inside the second outer beam. The second inner beam is lower than the second outer beam, and the second mounting beam is fixedly connected to the second inner beam.

14. The battery device according to any one of claims 1-11, characterized in that, The thermal management component has a first fixing hole, and the support frame has a second fixing hole. The support frame is fixedly connected to the thermal management component by a second connector passing through the first fixing hole and the second fixing hole.

15. The battery device according to any one of claims 1-11, characterized in that, The thermal management component includes a first plate and a second plate that are stacked and interconnected, the first plate and the second plate forming a heat exchange channel, and the flange integrally connected to at least one of the first plate and the second plate.

16. An electrical appliance, characterized in that, Includes a battery device as described in any one of claims 1-15, the battery device being used to store or provide electrical energy.

Images