Battery device and electric device

Abstract

The utility model belongs to the technical field of battery production, and provides a battery device and a power utilization device.The battery device comprises a battery single body assembly, a box body assembly and a lining body component, the box body assembly comprises a box bottom component and a plurality of frame components, each frame component comprises a first wall body, and the multiple first wall bodies are sequentially connected and define a ring shape; the plurality of first wall bodies are connected with the box bottom component and define a containing groove together with the box bottom component, and the battery monomer assembly is contained in the containing groove; the lining body part is attached to the wall face, facing the interior of the containing groove, of the first wall body. The utility model aims to improve the space utilization rate in the battery device.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery device and an electrical device. Background Art

[0002] Large-capacity batteries can store more electrical energy, providing more power to electrical devices and providing longer operating time. For example, large-capacity batteries can significantly increase the mileage of electric vehicles on a single charge.

[0003] A battery usually includes an external casing and internal battery cells. Generally speaking, the larger the volume of the battery cell, the more active material it can accommodate, and the greater the battery capacity.

[0004] In the related art, the box structure is complex and occupies a large space, which affects the volume of the battery cell and limits the increase in battery capacity. Utility Model Content

[0005] The purpose of the present application is to provide a battery device and an electrical device, aiming to solve the technical problem that the box assembly in the battery device occupies a large space.

[0006] In a first aspect, the present application provides a battery device, comprising:

[0007] Battery cell assembly;

[0008] The box assembly includes a box bottom member and multiple frame members, each frame member includes a first wall body, the multiple first walls are sequentially connected and arranged in a ring shape, the multiple first walls are connected to the box bottom member and together with the box bottom member form a receiving groove, and the battery cell assembly is received in the receiving groove;

[0009] The lining component is placed on the wall surface of the first wall body facing the inner side of the accommodating groove.

[0010] In this embodiment, when the external dimensions of the box assembly are constant, the frame component of the box assembly adopts a single-wall structure, that is, a first wall body is provided in the frame component, and the first wall body is a single-layer wall panel structure, thereby reducing the space occupied by the frame component, which is beneficial to increase the volume of the battery cell assembly, thereby facilitating the improvement of the capacity of the battery device and the performance of the battery device; and by adding a lining component, the first wall body has sufficient anti-deformation ability.

[0011] In one embodiment, the lining component has a weight-reducing structure.

[0012] In this embodiment, the weight-reducing structure is helpful in reducing the weight of the lining component, thereby contributing to the lightweighting of the battery device.

[0013] In one embodiment, the lining component has a plurality of first hole structures or a plurality of first groove structures.

[0014] In this embodiment, one of the purposes of providing the first hole structure or the first groove structure is to reduce the weight of the lining component, thereby reducing the weight of the entire battery device.

[0015] In one embodiment, the lining component is in the shape of a hollow grid.

[0016] In this embodiment, the hollow grid-shaped lining component can reduce weight while taking into account structural strength, thereby optimizing the weight of the entire battery device.

[0017] In one embodiment, the frame component also includes a second wall and a third wall both connected to the first wall. In the height direction of the first wall, the second wall and the third wall are arranged on both sides of the first wall relatively; the first wall is connected to the bottom component of the box through the second wall.

[0018] In this embodiment, the second wall and the third wall are added, thereby enhancing the overall anti-deformation capability of the frame component and facilitating the connection between the frame component and the box bottom component.

[0019] In one embodiment, the lining component includes a first lining plate, and the first lining plate is attached to and covers the wall surface of the first wall.

[0020] In this embodiment, the lining component adopts a lining plate structure to fit between the wall surface of the first wall, so that the side of the box assembly forms a double-layer support structure, which is beneficial to improving the deformation resistance of the box assembly.

[0021] In one embodiment, the lining component further includes a second lining plate connected to the first lining plate, and the second lining plate is fittedly connected to the second wall or the third wall.

[0022] In this embodiment, by adding a second lining plate on the basis of the first lining plate, it is beneficial to improve the deformation resistance of the lining part and the frame part.

[0023] In one embodiment, the lining component further includes a third lining plate connected to the first lining plate, the second lining plate is fitted and connected to the second wall, and the third lining plate is fitted and connected to the third wall.

[0024] In this embodiment, by further adding a third lining plate on the basis of the second lining plate, it is helpful to further improve the deformation resistance of the lining component itself and the frame component.

[0025] In one embodiment, a protrusion structure is provided on the first lining plate toward the inside of the accommodating groove.

[0026] In this embodiment, the structural complexity of the first lining plate is increased by adding a protruding structure, which is beneficial to enhancing the deformation resistance of the first lining plate, and further improving the deformation resistance of the lining body component and the first wall body.

[0027] In one embodiment, the protruding structure is continuously extended along the plate surface of the first lining plate, or the protruding structure is dispersedly arranged on the plate surface of the first lining plate.

[0028] In this embodiment, the arrangement of the protruding structures is designed so as to specifically enhance the deformation resistance of the first lining plate.

[0029] In one embodiment, when the protruding structure is continuously extended along the plate surface of the first lining plate, the protruding structure extends to both ends of the first lining plate along the extension direction of the first lining plate.

[0030] In this embodiment, the protruding structure is provided throughout the entire extension length of the first lining plate, which is beneficial to improving the overall anti-deformation capability of the first lining plate.

[0031] In one embodiment, the protruding structure has a structural cavity.

[0032] In this embodiment, by configuring a structural cavity on the protruding structure, it is helpful to reduce the weight of the protruding structure, optimize the structural form of the protruding structure, play a role of accommodation, and enhance the deformation resistance of the first lining plate.

[0033] In one embodiment, the structural cavity passes through both ends of the protruding structure along the extension direction of the protruding structure.

[0034] In this embodiment, the structural cavity is provided throughout the entire extended length of the protruding structure, which can reduce the weight of the protruding structure while also making it easier for the structural cavity to accommodate components such as wires and conveying tubes, thereby improving space utilization.

[0035] In one embodiment, the protruding structure is plate-shaped, the cross-section of the protruding structure is arc-shaped, and a structural cavity is formed between the protruding structure and the wall surface of the first wall.

[0036] In this embodiment, the protruding structure adopts a plate-shaped structure, so that the first lining plate and the protruding structure can be easily formed into one piece, reducing the difficulty of processing.

[0037] In one embodiment, the lining component and the frame component are welded.

[0038] In this embodiment, welding is adopted, which is convenient for operation and can improve the reliability of the connection between the lining component and the frame component.

[0039] In one embodiment, the battery device further includes a locking assembly connected between the lining component and the frame component.

[0040] In this embodiment, the lining component and the frame component are connected by a locking assembly, thereby achieving a detachable connection between the lining component and the frame component, and improving the convenience of installation and disassembly.

[0041] In one embodiment, the thickness of the first lining plate is 1 mm-3 mm.

[0042] In this embodiment, the thickness of the first lining plate is controlled to be between 1 mm and 3 mm, which can optimize the weight of the battery device and enable the first lining plate and the frame member to have good anti-deformation ability.

[0043] In one embodiment, the first lining plate is a plate-like structure made of a metal material; or, the first lining plate is a plate-like structure made of a composite material including metal and non-metal; or, the first lining plate is a plate-like structure made of a non-metallic material.

[0044] In this embodiment, the material used to prepare the first lining plate is controlled and selected so that the first lining plate has high deformation resistance and light weight, thereby facilitating lightweighting of the battery device.

[0045] In one embodiment, the box assembly further includes a structural beam connected to an outer surface of the first wall facing away from the accommodating groove, and the structural beam extends along the length direction of the first wall.

[0046] In this embodiment, by adding structural beams, the rigidity and strength of the frame component can be improved, and the anti-destruction and anti-deformation capabilities of the frame component can be improved.

[0047] In a second aspect, the present application provides an electrical device, comprising a battery device as described above, the battery device being used to store or provide electrical energy.

[0048] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments of the present application or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0050] Figure 1 A schematic structural diagram of a vehicle provided in some embodiments of the present application;

[0051] Figure 2 A schematic diagram of the exploded structure of a battery device provided in some embodiments of the present application;

[0052] Figure 3 A schematic structural diagram of a box assembly in a battery device provided in some embodiments of the present application;

[0053] Figure 4 for Figure 3 Axonometric drawing of

[0054] Figure 5 for Figure 3 AA section view;

[0055] Figure 6 Schematic diagram of the structure of the liner component in the battery device provided in some embodiments of the present application Figure 1 ;

[0056] Figure 7 Schematic diagram of the structure of the liner component in the battery device provided in some embodiments of the present application Figure 2 ;

[0057] Figure 8 Schematic diagram of the structure of the liner component in the battery device provided in some embodiments of the present application Figure 3 ;

[0058] Figure 9 for Figure 3 Right view of .

[0059] Description of reference numerals:

[0060] 1000. Vehicle; 1100. Battery device; 1110. Box assembly; 1111. Cover member; 1112. Frame member; 1113. Box bottom member; 1114. Receiving groove; 1115. First wall; 1116. Second wall; 1117. Third wall; 1120. Battery cell assembly; 1130. Lining member; 1131. First lining plate; 1132. Second lining plate; 1133. Third lining plate; 1134. First hole structure; 1135. First slot structure; 1136. Protrusion structure; 1137. Structural cavity; 1138. Second hole structure; 1140. Structural beam; 1150. Locking assembly; 1200. Controller; 1300. Motor. DETAILED DESCRIPTION

[0061] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0062] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0063] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0064] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0065] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0066] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0067] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0068] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0069] Large-capacity batteries can store more electrical energy, providing more power to electrical devices and providing longer operating time. For example, large-capacity batteries can significantly increase the mileage of electric vehicles on a single charge.

[0070] A battery usually includes an external casing and internal battery cells. Generally speaking, the larger the volume of the battery cell, the more active material it can accommodate, and the greater the battery capacity.

[0071] In the related art, the box structure is complex and occupies a large space, which affects the volume of the battery cell and limits the capacity increase of the battery. Specifically, for example, in some boxes, the box frame adopts a hollow beam structure with a large hollow space inside the beam structure. Reinforcing ribs are usually added to the hollow space of the beam structure to reduce the risk of deformation of the hollow beam structure when squeezed by the battery cell. For a hollow beam structure, the beam structure has a large width, and the hollow part will cause the beam structure to occupy a large space in the horizontal direction (for example, the length direction or the width direction) of the battery cell. When the shape and volume of the battery exterior are constant, the volume of the battery cell will be relatively reduced, thereby affecting the capacity of the battery and affecting the overall performance of the battery.

[0072] Therefore, the present application provides a battery device, in which the frame component of the box assembly adopts a single-wall structure, that is, a first wall is provided in the frame component, so that the space occupied by the frame component is reduced, thereby facilitating the increase in the volume of the battery cell assembly, thereby facilitating the increase in the capacity of the battery device and the performance of the battery device; and by adding a lining component, the first wall has sufficient anti-deformation ability.

[0073] Specifically, refer to Figure 2 As shown, an embodiment of the present application provides a battery device 1100. The battery device 1100 disclosed in the embodiment of the present application can be used in an electrical device that uses the battery device 1100 as a power source or various energy storage devices and energy storage systems that use the battery device 1100 as an energy storage element. The electrical device can be, but is not limited to, a mobile phone, a portable device, a laptop computer, an electric toy, an electric tool, an electric car, a vehicle 1000, a ship, a spacecraft, and the like. Among them, the electric toy can include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, and the like, and the spacecraft can include an airplane, a rocket, a space shuttle, and a spacecraft, and the like.

[0074] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device according to an embodiment of the present application.

[0075] Please refer to Figure 1 , Figure 1 A schematic structural diagram of a vehicle 1000 provided for some embodiments of the present application. The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery device 1100 is provided inside the vehicle 1000. The battery device 1100 may be provided at the bottom, head or tail of the vehicle 1000. The battery device 1100 may be used to power the vehicle 1000. For example, the battery device 1100 may serve as an operating power source for the vehicle 1000. The vehicle 1000 may further include a controller 1200 and a motor 1300. The controller 1200 is used to control the battery device 1100 to power the motor 1300, for example, to meet the power requirements for starting, navigating and driving the vehicle 1000.

[0076] In some embodiments of the present application, the battery device 1100 can not only serve as the operating power source of the vehicle 1000, but also serve as the driving power source of the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0077] Please refer to Figure 2 As shown, Figure 2Schematic diagram of the exploded structure of the battery device 1100 provided for some embodiments of the present application. The battery device 1100 includes a box assembly 1110 and one or more battery cell assemblies 1120. A storage space is formed in the box assembly 1110, and the battery cell assembly 1120 is accommodated in the storage space. The battery cell assembly 1120 is often formed by arranging multiple battery cells, or the battery cell assembly 1120 can also be a battery module (Battery Module), which is an independent module formed by arranging and fixing multiple battery cells. As an example, a battery module can be formed by bundling multiple battery cells by cable ties. Among them, the box assembly 1110 is used to provide a storage space for the battery cell assembly 1120, and the box assembly 1110 can adopt a variety of structures.

[0078] A battery cell is the smallest unit that makes up the battery device 1100. Each battery cell can be a secondary battery cell or a primary battery cell; it can also be a lithium-sulfur battery cell, a sodium-ion battery cell, or a magnesium-ion battery cell, but is not limited to these. A battery cell can be cylindrical, flat, rectangular, or have other shapes.

[0079] For ease of explanation, the following embodiments are described using the battery device 1100 as a horizontal arrangement. The definition of direction may include vertical and horizontal directions. The vertical and horizontal directions are perpendicular to each other. The vertical direction may be understood as the height direction of the box assembly 1110, and the horizontal direction may be understood as the length or width direction of the box assembly 1110. Therefore, the lower portion of the box assembly 1110 may be understood as the bottom of the box assembly 1110.

[0080] According to some embodiments of the present application, referring to Figure 2-5 As shown, an embodiment of the present application provides a battery device 1100, which includes a battery cell assembly 1120, a box assembly 1110 and a lining part 1130, wherein the box assembly 1110 includes a box bottom part 1113 and multiple frame parts 1112, each frame part 1112 includes a first wall 1115, and the multiple first walls 1115 are connected in sequence and arranged in a ring shape, and the multiple first walls 1115 are connected to the box bottom part 1113 and are jointly arranged with the box bottom part 1113 to form a receiving groove 1114, and the battery cell assembly 1120 is accommodated in the receiving groove 1114; the lining part 1130 is attached to the wall surface of the first wall 1115 facing the receiving groove 1114.

[0081] For the box assembly 1110, refer to Figure 2 and Figure 3As shown, the box assembly 1110 includes a bottom member 1113 and multiple frame members 1112. The bottom member 1113 is used to support the battery cell assembly 1120. The bottom member 1113 can adopt a plate structure, or it can also adopt a mesh frame structure. The multiple frame members 1112 are connected to form a circumferential enclosure of the box assembly 1110, thereby surrounding the outer periphery of the battery cell assembly 1120.

[0082] Each frame member 1112 includes a first wall 1115. The first wall 1115 can be understood as a single-wall structure, for example, a single-layer wall panel structure. Multiple first walls 1115 surround the center of the bottom member 1113 and are sequentially connected end-to-end to form a ring-shaped structure, which forms the circumferential frame structure of the box assembly 1110. The first walls 1115 can be made of metal or non-metallic materials, for example, aluminum, iron, or other materials. For example, the first walls 1115 can be formed from extruded profiles, single-wall profiles, or rolled steel. The first walls 1115 can be connected by welding or by removable means, such as cold connections, for example, using FDS (Flow Drill Screws), SPR (Self-Piercing Riveting), or bolts.

[0083] The plurality of first walls 1115 are connected to the bottom member 1113 to form a receiving groove 1114 together with the bottom member 1113. The battery cell assembly 1120 is received in the receiving groove 1114. The outer shape of the box assembly 1110 can be cylindrical or cubic. When preparing the frame member 1112, the plurality of first walls 1115 can be integrally formed to form a single structure; alternatively, the plurality of first walls 1115 can be connected and fixed by welding; alternatively, the plurality of first walls 1115 can be connected and fixed by a connecting structure such as a bolt assembly.

[0084] Reference Figure 4 and Figure 5 As shown, the lining component 1130 is used to enhance the deformation resistance of the frame component 1112. Therefore, the lining component 1130 needs to be connected to the first wall 1115. The deformation of the first wall 1115 is usually caused by the lateral extrusion of the battery cell assembly 1120. The single-layer wall (or wall panel) is easy to bend under the action of the lateral extrusion force. Therefore, a layer of lining component 1130 is attached to the wall surface of the first wall 1115 to enhance the deformation resistance of the first wall 1115.

[0085] The lining member 1130 may be a plate structure, which may be a continuously extending plate structure, or a plurality of dispersed plate structures. A predetermined contact area may be formed between the lining member 1130 and the surface of the first wall 1115, thereby reinforcing the first wall 1115. The lining member 1130 may cover the entire surface of the first wall 1115, or may cover a portion of the surface of the first wall 1115. The larger the coverage area, the greater the strengthening and reinforcement effect on the first wall 1115.

[0086] The lining member 1130 and the first wall 1115 can be connected in a variety of ways, such as bonding, welding, and connection with a bolt assembly, such as FDS (Flow Drill Screws), SPR (Self-Piercing Riveting), and bolt connection. The lining member 1130 can be installed before or after the frame members 1112 are assembled into the box assembly 1110.

[0087] In this embodiment, when the external dimensions of the box assembly 1110 are constant, the frame component 1112 of the box assembly 1110 adopts a single-wall structure, that is, a first wall body 1115 is provided in the frame component 1112, and the first wall body 1115 is a single-layer wall panel structure, thereby reducing the space occupied by the frame component 1112, which is beneficial to increase the volume of the battery cell assembly 1120, so as to increase the capacity of the battery device 1100 and improve the performance of the battery device 1100; and by adding the lining component 1130, the first wall body 1115 has sufficient anti-deformation ability.

[0088] Considering the usage scenarios of the battery device 1100, it can be seen that the heavier the battery device 1100, the more adverse effects it will have during the use and installation of the battery device 1100. For example, in vehicles such as electric vehicles, excessive weight of the battery device 1100 will increase the overall weight of the vehicle 1000, affecting the handling performance of the vehicle 1000. Operations such as acceleration, braking, and turning may become less flexible, increasing driving difficulty and safety risks. At the same time, heavier vehicles 1000 also put greater pressure on components such as the suspension system and tires, which will accelerate the wear of these components and require more frequent maintenance and replacement. Therefore, how to achieve lightweighting of the battery device 1100 is a technical problem that needs to be urgently solved in the design process of the battery device 1100.

[0089] Therefore, in this application, in some embodiments, reference is made to Figure 6-8As shown, the lining component 1130 has a weight-reducing structure.

[0090] Specifically, a weight-reducing structure should be understood as a structure capable of reducing the weight of lining component 1130. This weight reduction can be achieved through physical or chemical methods. For example, by hollowing or removing material from lining component 1130, the overall material usage of lining component 1130 can be reduced, thereby achieving the goal of weight reduction. For example, a cavity structure or a concave structure can be formed in lining component 1130. Another example is that the material used to make lining component 1130 itself has a cavity structure, such as a woven structure that interweaves horizontally and vertically.

[0091] In this embodiment, the weight-reducing structure is beneficial for reducing the weight of the lining component 1130 , thereby contributing to the lightweighting of the battery device 1100 .

[0092] In some embodiments, reference Figure 6-8 As shown, the liner component 1130 has a plurality of first hole structures 1134 .

[0093] Specifically, the first hole structure 1134 should be a through-hole structure opened on the lining part 1130. For example, the lining part 1130 is plate-shaped, then the lining part 1130 has two opposite surfaces, wherein one surface is fitted and connected to the wall surface of the first wall body 1115, then the first hole structure 1134 is set through the two surfaces of the lining part 1130.

[0094] Multiple first hole structures 1134 can be provided, and the multiple first hole structures 1134 can be spaced apart and arranged in a certain pattern. For example, the multiple first hole structures 1134 can be arranged in a matrix in two mutually perpendicular directions; another example, the multiple first hole structures 1134 can be arranged in a concentric ring shape; another example, the multiple first hole structures 1134 can be arranged in a spiral shape. The arrangement of the multiple first hole structures 1134 can have various forms and can be designed according to the actual application scenario.

[0095] The cross-sectional profile of the first hole structure 1134 may be circular, elliptical, polygonal, or the like, or the cross-sectional profile of the first hole structure 1134 may be a special shape formed by combining a straight line and a curve.

[0096] In this embodiment, one of the purposes of providing the first hole structure 1134 is to reduce the weight of the lining component 1130 , thereby reducing the weight of the entire battery device 1100 .

[0097] In some embodiments, reference Figure 6-8 As shown, the lining part 1130 has a plurality of first groove structures 1135 .

[0098] Specifically, the first groove structure 1135 should be a blind hole structure opened on the lining part 1130. For example, the lining part 1130 is plate-shaped, then the lining part 1130 has two opposite surfaces, one of which is fitted and connected to the wall surface of the first wall body 1115, then the first groove structure 1135 can be opened on any surface of the lining part 1130.

[0099] Multiple first slot structures 1135 can be provided, and the multiple first slot structures 1135 can be spaced apart and arranged in a certain pattern. For example, the multiple first slot structures 1135 can be arranged in a matrix in two mutually perpendicular directions; in another example, the multiple first slot structures 1135 can be arranged in a concentric ring pattern; in another example, the multiple first slot structures 1135 can be arranged in a spiral pattern. The multiple first slot structures 1135 can be arranged in various forms and can be designed according to the actual application scenario.

[0100] The notch profile of the first slot structure 1135 may be circular, elliptical, polygonal, or the like. Alternatively, the notch profile of the first slot structure 1135 may be a special shape formed by combining a straight line and a curve.

[0101] In this embodiment, one of the purposes of providing the first groove structure 1135 is to reduce the weight of the lining component 1130 and thereby reduce the weight of the entire battery device 1100 .

[0102] The specific opening positions and opening numbers of the first hole structure 1134 and the first slot structure 1135 can be designed according to the simulation structure of the simulation device, and the opening positions are generally positions with less force.

[0103] In some embodiments, the lining component 1130 is in the shape of a hollow grid.

[0104] Specifically, the hollowed-out portions (i.e., the shape of the grid) in the lining component 1130 can be circular, elliptical, or polygonal. The grids on the lining component 1130 can be arranged in a vertically staggered array. For example, the grids can be regular shapes such as squares or hexagons. Square grids are easier to manufacture, while hexagonal grids provide more uniform material distribution and better stress dispersion.

[0105] The mesh size is typically on the order of millimeters; for example, a mesh side length of 2-5 mm ensures the structural strength of the lining component 1130 while providing ample space for air circulation. The mesh density is determined based on the heat dissipation and mechanical protection requirements of the battery assembly 1100, typically with 20-50 mesh holes per square centimeter. If the battery assembly 1100 generates significant heat, the mesh density can be increased to improve heat dissipation efficiency. If mechanical protection requirements are high, the mesh structure will be optimized to enhance protection while ensuring ventilation.

[0106] The lining component 1130 can be made of metal, non-metal or composite materials. In terms of material, for example, the lining component 1130 with a hollow mesh structure is usually made of high-strength, good insulation and good flexibility materials, such as modified engineering plastics or special rubbers. Taking modified engineering plastics as an example, it has excellent mechanical strength and can withstand the slight expansion pressure generated during the charging and discharging process of the battery device 1100, reducing the impact of the lining component 1130 on the extrusion deformation of the battery assembly; in addition, the insulation performance can effectively reduce the risk of short circuit caused by the contact between the battery cell assembly 1120 and the wall of the box assembly 1110. Special rubber, with its good flexibility, plays a buffering role through its own elastic deformation when the battery device 1100 is vibrated or impacted, thereby reducing the damage to the battery cell assembly 1120 caused by external forces.

[0107] In terms of heat dissipation, since the battery assembly 1100 generates heat during the charging and discharging process, excessive heat accumulation will affect the performance and lifespan of the battery assembly 1100. The hollow mesh structure overcomes the thermal conductivity limitations of traditional enclosed linings, allowing air to flow freely within the accommodating slots 1114. The lining component 1130 contacts the surface of the battery cells, accelerating heat convection dissipation. For example, in the battery assembly 1100 of an electric vehicle, the use of the aforementioned mesh structure can reduce the temperature of the battery assembly 1100 by 5-8°C under continuous high-speed driving conditions, effectively ensuring that the battery assembly 1100 operates within an appropriate temperature range. In terms of mechanical protection, the hollow mesh lining component 1130 forms a mechanical support system similar to a honeycomb structure. When the battery assembly 1100 is subjected to an external collision, the mesh structure can disperse the impact force in multiple directions, reducing the damage caused by local stress concentration to the battery cell assembly 1120. Its cushioning effect is over 30% higher than that of a traditional solid liner. In addition, the hollow mesh structure is also lightweight and can reduce weight by 20%-30% compared to the solid lining component 1130. This can effectively improve the cruising range for weight-sensitive application scenarios, such as new energy vehicles and drones.

[0108] In this embodiment, the hollow grid-shaped lining member 1130 can reduce weight while taking into account structural strength, thereby optimizing the weight of the entire battery device 1100 .

[0109] In some embodiments, reference Figure 5 As shown, the frame component 1112 also includes a second wall 1116 and a third wall 1117, both of which are connected to the first wall 1115. In the height direction of the first wall 1115, the second wall 1116 and the third wall 1117 are relatively arranged on both sides of the first wall 1115; the first wall 1115 is connected to the bottom component 1113 through the second wall 1116.

[0110] Specifically, the second wall 1116 and the third wall 1117 are respectively connected to the first wall 1115 to form the frame member 1112. In addition, the second wall 1116 and the third wall 1117 are arranged opposite to each other and protrude toward the same side of the first wall 1115, so that the frame member 1112 forms a groove structure. It can be seen that there is a groove on the frame member 1112. The first wall 1115, the second wall 1116 and the third wall 1117 can all be plate-shaped structures. In this case, the frame member 1112 can be prepared using a profile, for example, the frame member 1112 can be prepared using a channel steel profile.

[0111] Since the battery device 1100 is placed horizontally, the height direction of the first wall 1115 can be understood as the vertical direction. The third wall 1117 and the second wall 1116 can be located on the upper and lower sides of the first wall 1115, respectively. For example, the upper portion of the first wall 1115 is the third wall 1117, and the lower portion of the first wall 1115 is the second wall 1116. The second wall 1116 is connected to the bottom member 1113 at the bottom, thereby achieving a fixed connection between the first wall 1115 (or the frame member 1112) and the bottom member 1113. The second wall 1116 and the bottom member 1113 can be connected by welding or a detachable connection method, such as bolt connection or riveting.

[0112] The widths of the second wall 1116 and the third wall 1117 extending outward from the first wall 1115 may be the same or different, and the extension lengths of the second wall 1116 and the third wall 1117 along the length direction of the first wall 1115 may be the same or different; when the second wall 1116 and the third wall 1117 have the same extension width and the same extension length, the second wall 1116 and the third wall 1117 may be symmetrically arranged on the upper and lower sides of the first wall 1115.

[0113] The lining part 1130 is connected to the first wall 1115 , and the upper and lower edges of the lining part 1130 can extend to the second wall 1116 and the third wall 1117 , or there can be a gap between the upper and lower edges of the lining part 1130 and the second wall 1116 and the third wall 1117 .

[0114] In this embodiment, the second wall 1116 and the third wall 1117 are added, thereby enhancing the overall anti-deformation capability of the frame component 1112 and facilitating the connection between the frame component 1112 and the box bottom component 1113 .

[0115] In some embodiments, reference Figure 5 and Figure 6 As shown, the lining component 1130 includes a first lining plate 1131 , which is attached to and covers the wall surface of the first wall 1115 .

[0116] Specifically, the first lining plate 1131 is a plate-like structure, and the lining body component 1130 adopts a plate-like structure, so that the first lining plate 1131 is attached to and covers the wall surface of the first wall body 1115, thereby forming a double-layer composite structure.

[0117] The dimensions of the first lining plate 1131 are consistent with those of the first wall 1115, so that the first wall 1115 is completely covered by the first lining plate 1131, thereby enhancing the deformation resistance of the entire first lining plate 1131. The first lining plate 1131 may have a plurality of first hole structures 1134 or first groove structures 1135, or may have a hollowed-out grid structure to reduce the weight of the first lining plate 1131.

[0118] Taking the box assembly 1110 in the form of a cube as an example, it can be seen that the box assembly 1110 includes four frame components 1112, that is, the box assembly 1110 includes four first wall bodies 1115, and the four first wall bodies 1115 are connected end to end in sequence to form a ring. It can be understood that there are four first lining plates 1131, and each first lining plate 1131 is fitted and connected to the corresponding first wall body 1115. The four first lining plates 1131 can also be connected end to end in sequence to form a ring structure. In this case, the four first lining plates 1131 can also adopt an integrally formed structure. Alternatively, the four first lining plates 1131 are independent of each other, and two adjacent first lining plates 1131 can be connected and assembled by welding or bolting.

[0119] In this embodiment, the lining component 1130 adopts a lining plate structure to fit between the wall surface of the first wall 1115, so that the side of the box assembly 1110 forms a double-layer support structure, which is beneficial to improving the deformation resistance of the box assembly 1110.

[0120] In some embodiments, reference Figure 5 and Figure 7 As shown, the lining component 1130 also includes a second lining plate 1132 connected to the first lining plate 1131 , and the second lining plate 1132 is fitted and connected to the second wall 1116 or the third wall 1117 .

[0121] Specifically, the second lining plate 1132 is connected to the first lining plate 1131 and protrudes from one side of the first lining plate 1131. When the battery device 1100 is placed horizontally, the second lining plate 1132 is connected to the upper or lower end of the first lining plate 1131 and protrudes from one side of the first lining plate 1131. When the second lining plate 1132 is connected to the upper end of the first lining plate 1131, the second lining plate 1132 is aligned with the surface of the third wall 1117, and the outer protrusion width of the second lining plate 1132 can be smaller than the width of the third wall 1117. When the second lining plate 1132 is connected to the lower end of the first lining plate 1131, the second lining plate 1132 is aligned with the surface of the second wall 1116, and the outer protrusion width of the second lining plate 1132 can be smaller than the width of the second wall 1116.

[0122] The second lining plate 1132 can be vertically connected to the first lining plate 1131, so that the lining member 1130 forms a vertically bent shape, thereby increasing the deformation resistance of the lining member 1130. In addition, by adding the second lining plate 1132, the contact area between the lining member 1130 and the frame member 1112 can be increased, thereby improving the deformation resistance of the frame member 1112 and the box assembly 1110.

[0123] The first lining plate 1131 and the second lining plate 1132 can be connected by welding or a detachable connection, or they can be integrally formed. The second lining plate 1132 and the second wall 1116 or the third wall 1117 can be connected by bonding, welding, or a detachable connection, such as bolting or riveting.

[0124] A second hole structure 1138 or a second groove structure may be formed on the second lining plate 1132 to reduce the weight of the second lining plate 1132. The second lining plate 1132 may also be a hollow grid structure.

[0125] In this embodiment, by adding the second lining plate 1132 on the basis of the first lining plate 1131, it is helpful to improve the deformation resistance of the lining part 1130 and the frame part 1112.

[0126] In some embodiments, reference Figure 5 and Figure 8 As shown, the lining component 1130 also includes a third lining plate 1133 connected to the first lining plate 1131 , the second lining plate 1132 is fitted and connected to the second wall 1116 , and the third lining plate 1133 is fitted and connected to the third wall 1117 .

[0127] It can be seen that the lining member 1130 includes a first lining plate 1131, a second lining plate 1132, and a third lining plate 1133. The second lining plate 1132 and the third lining plate 1133 are both connected to the first lining plate 1131. The second lining plate 1132 and the third lining plate 1133 are arranged opposite to each other, so that the second lining plate 1132 can be connected to the second wall 1116, and the third lining plate 1133 can be connected to the third wall 1117. It is understandable that the lining member 1130 has an external shape similar to that of the frame member 1112. The lining member 1130 is inserted into the groove of the frame member 1112, so that the lining member 1130 supports the frame member 1112 as a whole inside the frame member 1112, thereby enhancing the anti-deformation ability of the frame member 1112.

[0128] The second lining plate 1132 and the third lining plate 1133 can be respectively connected to the first lining plate 1131 by welding or in a detachable manner, or the first lining plate 1131, the second lining plate 1132 and the third lining plate 1133 can be an integrally formed structure.

[0129] The third lining plate 1133 and the third wall 1117 may be connected by bonding, welding or a detachable manner, for example, bolt connection, riveting, etc.

[0130] The third lining plate 1133 can be connected perpendicularly to the first lining plate 1131, so that the second lining plate 1132 and the third lining plate 1133 are arranged relative to and parallel to each other. Then, it can be seen that the lining component 1130 forms a bent shape with a groove. For example, the lining component 1130 can be prepared using a profile, for example, the lining component 1130 can be prepared using a channel steel profile. The lining component 1130 of the above shape can increase the deformation resistance of the lining component 1130 itself. In addition, by adding the third lining plate 1133, the fitting area between the lining component 1130 and the frame component 1112 can also be increased, thereby improving the deformation resistance of the frame component 1112 and the box assembly 1110.

[0131] A third hole structure or a third groove structure may be formed on the third lining plate 1133 to reduce the weight of the third lining plate 1133. The third lining plate 1133 may also adopt a hollow grid structure.

[0132] When the frame component 1112 includes a first wall 1115, a second wall 1116 and a third wall 1117, and the lining component 1130 includes a first lining plate 1131, a second lining plate 1132 and a third lining plate 1133, when the lining component 1130 is installed in the receiving groove 1114 of the frame component 1112 in a nested manner, a certain assembly gap may be left between the third lining plate 1133 and the third wall 1117 to facilitate the lining component 1130 to enter the receiving groove 1114.

[0133] In this embodiment, by further adding a third lining plate 1133 on the basis of the second lining plate 1132, it is helpful to further enhance the anti-deformation ability of the lining part 1130 itself and the frame part 1112.

[0134] In some embodiments, reference Figure 5-8 As shown, a protruding structure 1136 is provided on the first lining plate 1131 toward the receiving groove 1114 .

[0135] Specifically, the protruding structure 1136 can be understood as a portion of the first lining plate 1131 that protrudes toward the receiving groove 1114. The protruding structure 1136 can be a part of the first lining plate 1131. The protruding structure 1136 itself can be a cavity structure or a solid structure.

[0136] Protrusions 1136 are structures that protrude from the surface of first liner 1131. These structures alter the original planar structure of first liner 1131, creating a more three-dimensional structure. This complex structure allows first liner 1131 to disperse stress when subjected to external forces through the shape and distribution of protrusions 1136. For example, when external forces act on first liner 1131, protrusions 1136 can transmit the force in different directions, thereby preventing stress from concentrating in a single area and reducing the possibility of localized deformation.

[0137] In this embodiment, the structural complexity of the first lining plate 1131 is increased by adding the protruding structure 1136 , which is beneficial to enhancing the deformation resistance of the first lining plate 1131 and further improving the deformation resistance of the lining body component 1130 and the first wall body 1115 .

[0138] In some embodiments, reference Figure 6-8 As shown, the protruding structure 1136 is continuously extended along the plate surface of the first lining plate 1131 , or the protruding structure 1136 is dispersedly arranged on the plate surface of the first lining plate 1131 .

[0139] Specifically, one or more protruding structures 1136 may be provided. When one protruding structure 1136 is provided, the protruding structure 1136 may be continuously extended on the surface of the first lining plate 1131. When multiple protruding structures 1136 are provided, the multiple protruding structures 1136 may be spaced apart to form a dispersed arrangement. For example, the multiple protruding structures 1136 may be arranged in an array on the surface of the first lining plate 1131.

[0140] In the vertical direction, the raised structure 1136 may be located in the middle area, upper area, lower area, etc. of the board surface of the first lining plate 1131, or the raised structure 1136 may be arranged inclined upward or downward along the extended length direction of the board surface of the first lining plate 1131.

[0141] In this embodiment, by designing the arrangement of the protruding structure 1136 , the deformation resistance of the first lining plate 1131 can be specifically improved.

[0142] In some embodiments, reference Figure 4-8 As shown, when the protruding structure 1136 is continuously extended along the plate surface of the first lining plate 1131 , the protruding structure 1136 extends to both ends of the first lining plate 1131 along the extension direction of the first lining plate 1131 .

[0143] Specifically, the extension direction of the first lining plate 1131 can be understood as the length direction of the first lining plate 1131, that is, the extension length direction of the first wall 1115. The protruding structure 1136 is arranged along the extension length direction of the first lining plate 1131, and the two ends of the protruding structure 1136 can respectively extend to the two ends of the first lining plate 1131, so that the protruding structure 1136 can completely cover the first lining plate 1131 in the length direction, providing a structural foundation for the subsequent arrangement of the through-going structural cavity 1137.

[0144] For example, there is only one protrusion structure 1136, and the protrusion structure 1136 extends continuously along the extension direction of the first lining plate 1131, with both ends of the protrusion structure 1136 extending through the ends of the extended length of the first lining plate 1131. In the vertical direction, the protrusion structure 1136 is arranged in the middle area of ​​the first lining plate 1131. Of course, there can also be multiple protrusion structures 1136, and the multiple protrusion structures 1136 can be arranged at intervals in the vertical direction.

[0145] In this embodiment, the protruding structure 1136 is provided throughout the entire extension length of the first lining plate 1131 , which is beneficial for improving the overall anti-deformation capability of the first lining plate 1131 .

[0146] In some embodiments, reference Figure 5-8 As shown, the protruding structure 1136 has a structural cavity 1137 .

[0147] Specifically, structural cavity 1137 is a hollow space formed in protrusion structure 1136. Structural cavity 1137 can be understood as a hole structure or a slot structure. One purpose of providing structural cavity 1137 in protrusion structure 1136 is to reduce the weight of protrusion structure 1136 itself. For example, structural cavity 1137 can adopt a hollow cylindrical wall structure.

[0148] Optionally, since the protruding structure 1136 is located on the first lining plate 1131, the first lining plate 1131 and the wall surface of the first wall body 1115 are arranged in close contact with each other, and therefore, a structural cavity 1137 is provided between the protruding structure 1136 and the wall surface of the first wall body 1115. It can be understood that the part of the first lining plate 1131 provided with the protruding structure 1136 is separated from the wall surface of the first wall body 1115 due to the outward protrusion, thereby forming a structural cavity 1137.

[0149] There may be one or more structural cavities 1137. When there is only one structural cavity 1137, the structural cavity 1137 also passes through the extension trajectory of the protruding structure 1136, so that the protruding structure 1136 forms a cylindrical wall structure; when there are multiple structural cavities 1137, the multiple structural cavities 1137 are spaced apart so that they can be distributed in a dispersed manner on the extension trajectory of the protruding structure 1136.

[0150] The structural cavity 1137 can be used to reduce weight and can also be used to accommodate components such as wires and conveying tubes in the battery device 1100 .

[0151] In this embodiment, by configuring a structural cavity 1137 on the protruding structure 1136, it is helpful to reduce the weight of the protruding structure 1136, optimize the structural form of the protruding structure 1136, play a role of accommodation, and enhance the deformation resistance of the first lining plate 1131.

[0152] In some embodiments, reference Figure 6-8 As shown, the structural cavity 1137 passes through both ends of the protruding structure 1136 along the extension direction of the protruding structure 1136 .

[0153] In this example, there are one or more structural cavities 1137 , and each structural cavity 1137 passes through both ends of the protruding structure 1136 along the extension direction of the protruding structure 1136 .

[0154] Structural cavity 1137 can serve as a storage device. For example, battery device 1100 is typically equipped with a variety of wires for connecting individual battery cells, as well as wires for transmitting current to external devices. These wires can be accommodated within structural cavity 1137. For another example, if battery device 1100 is also equipped with components such as delivery pipes for transmitting heat exchange medium to the heat exchange plates, structural cavity 1137 can also serve as a storage device for these delivery pipes.

[0155] In this embodiment, the structural cavity 1137 is set to pass through the entire extended length of the protruding structure 1136, which can reduce the weight of the protruding structure 1136 and also make it easier for the structural cavity 1137 to accommodate components such as wires and conveying tubes to improve space utilization.

[0156] In some embodiments, reference Figure 6-8 As shown, the protruding structure 1136 is plate-shaped, and the cross-section of the protruding structure 1136 is arc-shaped. A structural cavity 1137 is formed between the protruding structure 1136 and the wall surface of the first wall 1115 .

[0157] Specifically, the first lining plate 1131 can be a flat plate structure, and the raised structure 1136 can be a plate portion raised on the flat plate surface. It can also be understood that the first lining plate 1131 and the raised structure 1136 are manufactured and formed together, and the raised structure 1136 is a convex or curved portion formed by stamping on the first lining plate 1131. It can be understood that the structural cavity 1137 is the concave portion of the raised structure 1136, or the structural cavity 1137 can be understood as the hollow space formed between the concave surface of the raised structure 1136 and the wall surface of the first wall 1115.

[0158] The raised structure 1136 can be understood as a curved panel structure. The cross-sectional shape of the curved panel structure can be an arc shape or a broken line shape. When an arc shape is adopted, the surface of the raised structure 1136 is smoother, which is beneficial to reduce stress concentration and enhance the deformation resistance of the first lining plate 1131.

[0159] A plurality of structural holes may be provided on the protruding structure 1136 to reduce the weight of the protruding structure 1136 ; in addition, the protruding structure 1136 may also adopt a hollow mesh structure.

[0160] In this embodiment, the protruding structure 1136 adopts a plate-shaped structure, so that the first lining plate 1131 and the protruding structure 1136 can be easily formed into one piece, thereby reducing the difficulty of processing.

[0161] In some embodiments, the liner portion 1130 is welded to the frame portion 1112 .

[0162] Considering that the lining part 1130 is sleeved and fitted on the frame part 1112, it can be seen that a larger fitting area is formed between the lining part 1130 and the frame part 1112 (for example, the first wall 1115). Therefore, welding can be used at the position where the lining part 1130 and the frame part 1112 fit together. The welding area is sufficient, and the welding method can make the connection between the lining part 1130 and the frame part 1112 more secure and easy to process.

[0163] The welding position between the lining part 1130 and the frame part 1112 can be set between the first wall 1115 and the first lining plate 1131, or between the second wall 1116 and the second lining plate 1132, or between the third wall 1117 and the third lining plate 1133.

[0164] In this embodiment, welding is adopted, which is convenient for operation and can improve the reliability of the connection between the lining component 1130 and the frame component 1112 .

[0165] In some embodiments, reference Figure 5 As shown, the battery device 1100 further includes a locking assembly 1150 , which is connected between the lining component 1130 and the frame component 1112 .

[0166] Taking into account the situation that the lining part 1130 and the frame part 1112 may need to be disassembled, a locking assembly 1150 is provided to connect the locking assembly 1150 to the lining part 1130 and the frame part 1112 respectively, thereby enabling the connection and disassembly between the lining part 1130 and the frame part 1112 to be achieved.

[0167] The locking assembly 1150 can be a bolt assembly, a rivet assembly, a snap assembly, a bolt assembly, etc.

[0168] In this embodiment, the lining part 1130 and the frame part 1112 are connected via the locking assembly 1150, thereby achieving a detachable connection between the lining part 1130 and the frame part 1112, thereby improving the convenience of installation and disassembly.

[0169] In some embodiments, the thickness of the first lining plate 1131 is 1 mm to 3 mm.

[0170] In order to balance the contradiction between the stiffness, strength, anti-deformation performance and weight of the first lining plate 1131, the thickness of the first lining plate 1131 is designed to be 1mm-3mm. In addition, the thickness of the second lining plate 1132 and the third lining plate 1133 can also be designed to be 1mm-3mm.

[0171] The first lining 1131 with a thickness in the range of 1mm-3mm has sufficient strength and rigidity to support and protect the frame component 1112. The first lining 1131 with the above thickness can withstand the weight of the battery cell and various forces that may be generated during use, such as vibration, impact, etc., so that the first lining 1131 will not be easily deformed or damaged, which is beneficial for the battery cell to always be in a stable environment.

[0172] In addition, the thickness of the first lining plate 1131 is between 1 mm and 3 mm, which can effectively control the overall weight of the battery device 1100 and help improve the endurance or operating efficiency of the device.

[0173] In this embodiment, the thickness of the first liner 1131 is controlled to be between 1 mm and 3 mm, which can optimize the weight of the battery device 1100 and ensure that the first liner 1131 and the frame member 1112 have good anti-deformation capabilities.

[0174] In some embodiments, the first lining plate 1131 is a plate-like structure made of a metal material; or, the first lining plate 1131 is a plate-like structure made of a composite material including metal and non-metal; or, the first lining plate 1131 is a plate-like structure made of a non-metallic material.

[0175] Specifically, the first liner 1131 made of metal material has high strength and hardness, which can provide the battery device 1100 with reliable resistance to external impact and pressure, and improve the deformation resistance of the first liner 1131. In addition, the first liner 1131 made of metal material has high thermal conductivity, which can quickly transfer and diffuse the heat inside the battery device 1100 to the outside. In this case, insulation treatment is required between the first liner 1131 and the battery cell assembly 1120. For example, an insulating film can be attached to the side of the first liner 1131 facing the battery cell assembly 1120. It should be pointed out that the second liner 1132 and the third liner 1133 can also be made of metal materials.

[0176] The first liner 1131 made of non-metallic materials has excellent insulation properties, effectively reducing the risk of short circuits between it and the battery cell assembly 1120. For example, non-metallic materials such as plastic, rubber, and ceramics are commonly used insulating materials and can be used to make the first liner 1131, ensuring the electrical insulation performance of the battery system. Furthermore, the first liner 1131 made of non-metallic materials also has excellent corrosion resistance, resisting corrosion from the electrolyte within the battery device 1100 and chemicals in the external environment, thereby extending the service life of the first liner 1131. The corrosion resistance of the non-metallic first liner 1131 is particularly advantageous in harsh operating environments, such as those with humidity, acidity, and alkalinity. Furthermore, the cost of the non-metallic first liner 1131 is relatively low, and its density is generally lower than that of metal materials, which can reduce the production cost and overall weight of the battery device 1100. It should be noted that the second and third liner 1132 and 1133 can also be made of non-metallic materials.

[0177] Composite materials are formed by combining metal and non-metal materials. First lining plate 1131, made of composite materials, combines the advantages of both metals and non-metals, possessing the high strength, good electrical and thermal conductivity of metals, along with some of the properties of non-metallic materials, such as insulation and corrosion resistance. For example, in some composite materials, the metal portion provides structural strength and a thermal path, while the non-metal portion provides insulation and enhanced corrosion resistance, making first lining plate 1131 more adaptable in complex operating environments. It should be noted that second lining plate 1132 and third lining plate 1133 can also be made of composite materials. The composite material can be a polymer material.

[0178] In this embodiment, the material used to prepare the first liner 1131 is controlled and selected so that the first liner 1131 has high deformation resistance and light weight, thereby facilitating lightweighting of the battery device 1100 .

[0179] In some embodiments, reference Figure 3-5 and Figure 9 As shown, the box assembly 1110 further includes a structural beam 1140 , which is connected to the outer surface of the first wall 1115 facing away from the accommodating groove 1114 , and extends along the length direction of the first wall 1115 .

[0180] Specifically, the structural beam 1140 is located on the outer surface of the box assembly 1110, that is, the structural beam 1140 is connected to the outer surface of the first wall 1115 facing away from the accommodating groove 1114, and the surface of the first wall 1115 facing away from the accommodating groove 1114 is the outer surface or outer side surface of the box assembly 1110.

[0181] The structural beam 1140 has a certain extension length and is arranged to extend along the length direction of the first wall 1115. The structural beam 1140 can be arranged parallel to the first wall 1115. The structural beam 1140 and the first wall 1115 can be connected by welding or a detachable manner. For example, the structural beam 1140 and the first wall 1115 can be connected by bolts, rivets, etc.

[0182] The structural beam 1140 can be prepared using a hollow cylindrical wall structure or a profile structure. A hollow cavity is formed in the middle of the structural beam 1140. Reinforcement ribs and other structures can be added in the cavity to enhance the deformation resistance of the structural beam 1140.

[0183] One or more structural beams 1140 may be provided, and each first wall 1115 may be connected to at least one structural beam 1140 . The structural beam 1140 extends along the outer wall surface of the first wall 1115 and may extend to both ends of the length direction of each first wall 1115 .

[0184] In this embodiment, by adding the structural beam 1140 , the rigidity and strength of the frame component 1112 can be improved, and the anti-destruction and anti-deformation capabilities of the frame component 1112 can be improved.

[0185] In some embodiments, reference Figure 2 and Figure 5 As shown, the box assembly 1110 further includes a cover member 1111, which is connected to each frame member 1112 and covers the notch of the receiving groove 1114. The cover member 1111 is disposed opposite the box bottom member 1113. After the battery cell assembly 1120 is accommodated in the receiving groove 1114, the cover member 1111 can be used to cover the notch of the receiving groove 1114, thereby sealing the receiving groove 1114.

[0186] In some specific embodiments, referring to Figure 2-9As shown, the battery device 1100 includes a battery cell assembly 1120, a box assembly 1110 and a lining member 1130, wherein the box assembly 1110 includes a box bottom member 1113 and multiple frame members 1112, each frame member 1112 includes a first wall 1115, multiple first walls 1115 are sequentially connected and arranged in a ring shape, multiple first walls 1115 are connected to the box bottom member 1113 and are together arranged to form a receiving groove 1114, and the battery cell assembly 1120 is accommodated in the receiving groove 1114; the lining member 1130 is attached to the wall surface of the first wall 1115 facing the accommodating groove 1114; the lining part 1130 has a plurality of first hole structures 1134 or a plurality of first groove structures 1135; the frame part 1112 also includes a second wall 1116 and a third wall 1117 both connected to the first wall 1115, and in the height direction of the first wall 1115, the second wall 1116 and the third wall 1117 are arranged oppositely on both sides of the first wall 1115; the first wall 1115 is connected to the bottom part 1113 through the second wall 1116; the lining Part 1130 includes a first lining plate 1131, which fits and covers the wall surface of the first wall body 1115; the lining body part 1130 also includes a second lining plate 1132 and a third lining plate 1133, both of which are connected to the first lining plate 1131, the second lining plate 1132 fits and connects with the second wall body 1116, and the third lining plate 1133 fits and connects with the third wall body 1117; a protruding structure 1136 is provided on the first lining plate 1131 toward the accommodating groove 1114; the protruding structure 1136 is continuously extended along the plate surface of the first lining plate 1131; When the protruding structure 1136 is continuously extended along the plate surface of the first lining plate 1131, the protruding structure 1136 extends to both ends of the first lining plate 1131 along the extension direction of the first lining plate 1131; a structural cavity 1137 is provided on the protruding structure 1136; the structural cavity 1137 passes through both ends of the protruding structure 1136 along the extension direction of the protruding structure 1136; the protruding structure 1136 is plate-shaped, and the cross-sectional shape of the protruding structure 1136 is arc-shaped, and a structural cavity 1137 is formed between the protruding structure 1136 and the wall surface of the first wall body 1115.

[0187] According to some embodiments of the present application, referring to Figure 1 As shown, the present application further provides an electrical device, which includes the battery device 1100 in the above embodiment, and the battery device 1100 is used to store or provide electrical energy.

[0188] The technical solutions described in the embodiments of the present application are applicable to various electrical devices that use battery cells, such as mobile phones, portable devices, laptop computers, electric vehicles, electric toys, electric tools, vehicles, ships and spacecraft, for example, spacecraft include airplanes, rockets, space shuttles and spacecraft, etc.

[0189] The example of the electric device in this application is based on the example of the battery device 1100 described above. The example of the electric device includes all the technical effects of the example of the battery device 1100 described above, which will not be repeated here.

[0190] According to some embodiments of the present application, the present application further provides an energy storage device, which includes a power conversion device and the battery device 1100 in the above embodiment, and the power conversion device is used to electrically connect the power generation device and the energy storage device.

[0191] Specifically, the energy storage device may include one or more battery clusters to increase the device's voltage and capacity. A battery cluster may include multiple battery devices 1100 connected in series via a busbar to increase the device's voltage. When the energy storage device includes multiple battery clusters, the battery clusters are connected in parallel to increase the device's capacity.

[0192] Energy storage devices can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems, or temporary power supply systems. Energy storage devices can store electrical energy as needed and output it at the appropriate time. For example, an energy storage device can store electrical energy during periods of low electricity consumption and provide it to relevant users or electrical equipment during periods of peak electricity consumption. The energy storage system provided in the embodiments of the present application can be any power system that requires an energy storage device.

[0193] In some embodiments, the energy storage device is an energy storage container or an energy storage cabinet.

[0194] In some embodiments, the energy storage device may include a cabinet and one or more battery clusters housed in the cabinet.

[0195] In some embodiments, the energy storage device may include modules such as a thermal management module, a main control module, a master control module, a power distribution module, and a fire protection module.

[0196] As an example, the thermal management module may include a liquid cooling unit that provides cooling liquid for regulating the temperature of the battery cells to each battery device 1100 through a pipeline.

[0197] For example, the master control module can serve as the battery management unit (BMU) of a battery cluster, monitoring and managing the battery cluster. The master control module can monitor information such as the battery cluster's current, voltage, power, and temperature. For example, it can control the battery cluster's charge and discharge current and voltage. The master control module includes modules such as the slave battery management unit (SBMU) and a fusion switch.

[0198] As an example, the master control module can serve as the battery management unit (BMU) of an energy storage device, monitoring and managing the device. The master control module can monitor information such as the device's current, voltage, power, state of charge, or temperature. For example, it can control the device's charge and discharge current and voltage. For example, the master control module includes modules such as an insulation monitoring module (IMM), a master battery management unit (MBMU), an Ethernet (ETH), and a fiber optic conversion module.

[0199] As an example, the fire protection module includes a control panel, detectors, alarm devices, etc., which are used to detect, alarm or extinguish fires in the energy storage system.

[0200] As an example, the power distribution module can be used to distribute power to modules in the energy storage device that require power.

[0201] According to some embodiments of the present application, the present application also provides an energy storage system, which includes a power conversion device and the energy storage device in the above embodiment, and the power conversion device is used to electrically connect the power generation device and the energy storage device.

[0202] In some embodiments, the energy storage system may include one or more energy storage devices and a power converter system (PCS). The power converter system is connected between the power generation equipment and the energy storage device. The power generation equipment is used to generate electricity, which can be stored in the energy storage device via the power converter. For example, the power generation equipment may include solar panels, hydroelectric power generation equipment, thermal power generation equipment, wind power generation equipment, etc. The specific type of power generation equipment is not limited in this application.

[0203] According to some embodiments of the present application, the present application further provides a charging network, which includes charging piles and the energy storage device in the above embodiment or the energy storage system in the above embodiment, and the energy storage device is used to provide electrical energy for the charging piles.

[0204] For example, a charging network includes a charging station and an energy storage device. The charging station is electrically connected to the energy storage device, which provides electrical energy to the charging station. The charging station and the battery device 1100 in the energy storage device are electrically connected via a cable. The battery device 1100 can provide its stored energy to the charging station. The charging station has one or more connectors for connecting to an electrical device (such as a vehicle 1000) to replenish energy to the device.

[0205] The energy storage device can be located inside the charging pile (such as an integrated storage and charging machine) or outside the charging pile.

[0206] The above are merely preferred embodiments of the present application and only specifically describe the technical principles of the present application. These descriptions are intended only to explain the principles of the present application and should not be construed in any way as limiting the scope of protection of the present application. Based on the explanations herein, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present application, as well as other specific implementations of the present application that can be conceived by those skilled in the art without inventive effort, shall be included within the scope of protection of the present application.

Claims

1. A battery device (1100), characterized in that: include: Battery cell assembly (1120); A box assembly (1110) includes a box bottom component (1113) and a plurality of frame components (1112), each of the frame components (1112) including a first wall (1115), the plurality of first walls (1115) being sequentially connected and arranged in a ring shape, the plurality of first walls (1115) being connected to the box bottom component (1113) and being arranged together with the box bottom component (1113) to form a receiving groove (1114), the battery cell assembly (1120) being accommodated in the receiving groove (1114); The lining component (1130) is attached to the wall surface of the first wall (1115) facing the inside of the accommodating groove (1114).

2. The battery device (1100) according to claim 1, characterized in that The lining component (1130) has a weight-reducing structure.

3. The battery device (1100) according to claim 1, characterized in that The lining component (1130) has a plurality of first hole structures (1134) or a plurality of first groove structures (1135).

4. The battery device (1100) according to claim 1, characterized in that The lining component (1130) is in the shape of a hollow grid.

5. The battery device (1100) according to any one of claims 1 to 4, characterized in that: The frame component (1112) further includes a second wall body (1116) and a third wall body (1117) both connected to the first wall body (1115); in the height direction of the first wall body (1115), the second wall body (1116) and the third wall body (1117) are arranged on both sides of the first wall body (1115) relative to each other; the first wall body (1115) is connected to the box bottom component (1113) via the second wall body (1116).

6. The battery device (1100) according to claim 5, characterized in that The lining component (1130) includes a first lining plate (1131), and the first lining plate (1131) is attached to and covers the wall surface of the first wall body (1115).

7. The battery device (1100) according to claim 6, characterized in that The lining component (1130) further includes a second lining plate (1132) connected to the first lining plate (1131), and the second lining plate (1132) is fitted and connected to the second wall (1116) or the third wall (1117).

8. The battery device (1100) according to claim 7, characterized in that The lining component (1130) further includes a third lining plate (1133) connected to the first lining plate (1131), the second lining plate (1132) is fitted and connected to the second wall (1116), and the third lining plate (1133) is fitted and connected to the third wall (1117).

9. The battery device (1100) according to claim 6, characterized in that A protruding structure (1136) is provided on the first lining plate (1131) toward the interior of the accommodating groove (1114).

10. The battery device (1100) according to claim 9, characterized in that The protruding structure (1136) is continuously extended along the plate surface of the first lining plate (1131), or the protruding structure (1136) is dispersedly arranged on the plate surface of the first lining plate (1131).

11. The battery device (1100) according to claim 10, characterized in that When the protruding structure (1136) is continuously extended along the plate surface of the first lining plate (1131), the protruding structure (1136) extends to both ends of the first lining plate (1131) along the extension direction of the first lining plate (1131).

12. The battery device (1100) according to claim 9, characterized in that The protruding structure (1136) has a structural cavity (1137).

13. The battery device (1100) according to claim 12, characterized in that The structural cavity (1137) passes through both ends of the protruding structure (1136) along the extension direction of the protruding structure (1136).

14. The battery device (1100) according to claim 12, characterized in that The protruding structure (1136) is plate-shaped, and the cross-section of the protruding structure (1136) is arc-shaped. The protruding structure (1136) and the wall surface of the first wall body (1115) are enclosed to form the structural cavity (1137).

15. The battery device (1100) according to any one of claims 1 to 4, characterized in that: The lining component (1130) and the frame component (1112) are welded.

16. The battery device (1100) according to any one of claims 1 to 4, characterized in that: The battery device (1100) further comprises a locking assembly (1150), wherein the locking assembly (1150) is connected between the lining component (1130) and the frame component (1112).

17. The battery device (1100) according to claim 6, characterized in that The thickness of the first lining plate (1131) is 1 mm to 3 mm.

18. The battery device (1100) according to claim 6, characterized in that The first lining plate (1131) is a plate-shaped structure made of a metal material; or, the first lining plate (1131) is a plate-shaped structure made of a composite material including metal and non-metal; or, the first lining plate (1131) is a plate-shaped structure made of a non-metal material.

19. The battery device (1100) according to any one of claims 1 to 4, characterized in that: The box assembly (1110) further includes a structural beam (1140), wherein the structural beam (1140) is connected to the outer surface of the first wall (1115) facing away from the accommodating groove (1114), and the structural beam (1140) is extended along the length direction of the first wall (1115).

20. An electrical device, characterized in that: The battery device (1100) comprises the battery device (1100) according to any one of claims 1 to 19, wherein the battery device (1100) is used for storing or providing electrical energy.

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