Battery device and electric device

Abstract

The application discloses a battery device and an electric device, and relates to the technical field of battery devices; wherein the battery device comprises a box body, an adjusting assembly and a battery monomer; the box body is provided with a bottom plate and a frame arranged on the bottom plate; the bottom plate and the frame define a containing groove provided with an opening on one side; the frame is provided with a first side beam; the adjusting assembly is arranged in the containing groove; the adjusting assembly comprises a base beam and an adjusting piece; the base beam is arranged on the bottom plate and is arranged in a spaced-apart manner opposite to the first side beam; the battery monomer is mounted in the containing groove from the opening and is located between the base beam and the first side beam; the adjusting piece is provided with a plurality of mounting positions on the base beam; the plurality of mounting positions are arranged in sequence from the base beam to the first side beam; after the adjusting piece is mounted on the corresponding mounting position, the battery monomer is limited between the adjusting piece and the first side beam. The technical scheme of the application can reduce the difficulty of the battery monomer into the box.

Description

Technical Field

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

[0002] CTP (Cell to Pack) battery technology is a highly integrated power battery technology that integrates battery cells (also known as individual battery cells in the industry, hereinafter referred to as individual battery cells) directly into a housing by eliminating or simplifying the module layer in traditional battery packs, thereby improving energy density and reducing costs. However, in existing technologies, the assembly of CTP battery devices faces the challenge of installing the cells into the housing. Utility Model Content

[0003] In view of the above problems, this application provides a battery device and an electrical device, which aim to reduce the difficulty of loading individual battery cells into the box.

[0004] In a first aspect, this application provides a battery device, which includes a housing, an adjustment assembly, and a battery cell. The housing has a base plate and a frame disposed on the base plate. The base plate and the frame define a receiving groove with an opening on one side. The frame has a first side beam. The adjustment assembly is disposed within the receiving groove. The adjustment assembly includes a base beam and an adjustment member. The base beam is disposed on the base plate and is opposite to and spaced apart from the first side beam. The battery cell is installed in the receiving groove through the opening and is located between the base beam and the first side beam. The adjustment member has multiple mounting positions on the base beam. The multiple mounting positions are arranged sequentially from the base beam to the first side beam. After the adjustment member is installed at the corresponding mounting position, the battery cell is confined between the adjustment member and the first side beam.

[0005] The technical solution of this application first constructs a relatively spacious installation space through a base plate, frame, and base beam, which facilitates the initial placement of battery cells and reduces the difficulty of placing battery cells into the casing. Then, the adjusting component is installed on the base beam. Since the adjusting component has multiple mounting positions arranged sequentially from the base beam to the first side beam, when the adjusting component is installed in the corresponding mounting position, it can confine the battery cell between the adjusting component and the first side beam. In this way, the adjusting component and the first side beam can provide a certain fixing force to the battery cell, resist external extrusion pressure and expansion force generated by cell charging and discharging, and can reduce the requirements for battery cell size and casing manufacturing precision to a certain extent, providing greater tolerance for the production process.

[0006] In some embodiments, the adjusting member includes a connecting beam and a plug-in plate disposed on the connecting beam. The connecting beam is located on the side of the base beam opposite to the bottom plate. After the connecting beam is installed in the corresponding mounting position, the plug-in plate is inserted between the battery cell and the base beam, and the plug-in plate abuts against the battery cell. In this embodiment, the combined arrangement of the connecting beam and the plug-in plate can improve the structural strength of the adjusting member, as well as the strength of the connection structure between the adjusting member and the base beam, reduce the space occupied by the adjusting member in the receiving slot, and improve the uniformity of stress between the battery cell and the plug-in plate.

[0007] In some embodiments, the base beam has a first mounting hole on the side facing away from the base plate, and the connecting beam has a second mounting hole; the adjusting component includes a first fastener, which passes through the second mounting hole and the first mounting hole in sequence; the opening area of ​​the second mounting hole is different from the opening area of ​​the first mounting hole, so that the adjusting member has multiple mounting positions on the base beam. In this embodiment, the opening area of ​​the second mounting hole is different from the opening area of ​​the first mounting hole, so that the mating positions between the second mounting hole and the first mounting hole are no longer one-to-one, thereby allowing the adjusting member and the base beam to have multiple mounting positions, allowing the position of the adjusting member on the base beam to be fine-tuned, and providing flexible adjustment space.

[0008] In some embodiments, the first fastener includes a connecting rod and a limiting portion disposed on the connecting rod, the limiting portion abutting against the connecting beam. The connecting rod passes sequentially through the second mounting hole and the first mounting hole, and the connecting rod is threadedly connected to the base beam in the first mounting hole. The length of the second mounting hole from the base beam to the first side beam is greater than the diameter of the first mounting hole, so that the adjusting member has multiple mounting positions on the base beam. In this embodiment, the combination of threaded connection and the difference in mounting hole length between the connecting beam and the base beam makes the installation of the adjusting member on the base beam more flexible, which helps to simplify the connection structure between the connecting beam and the base beam.

[0009] In some embodiments, the base beam includes a base body and a first nut seat. The base body has a cavity with a first mounting opening. The first nut seat passes through the base body and is partially disposed within the cavity. A first mounting hole is formed in the first nut seat, and the connecting rod is threadedly connected to the first nut seat within the first mounting hole. In this embodiment, the hollow design of the base body reduces the weight and material cost of the base beam. The threaded connection of the first nut seat allows for quick tightening of the adjusting components during installation, improving assembly efficiency.

[0010] In some embodiments, the adjusting member further includes a reinforcing plate disposed on the connecting beam, the reinforcing plate and the plug-in plate being located on opposite sides of the base beam; a connecting adhesive layer is provided between the connecting beam and the base beam, and / or, a connecting adhesive layer is provided between the reinforcing plate and the base beam. In this embodiment, by providing connecting adhesive layers between the connecting beam and the base beam, and between the reinforcing plate and the base beam, not only is the connection strength between the base beam and the adjusting member enhanced, but the stability of the overall structure is also effectively improved.

[0011] In some embodiments, the reinforcing plate includes a first reinforcing part and a second reinforcing part that are interconnected and arranged at an angle. The first reinforcing part is connected to the connecting beam, and the second reinforcing part is located on the side of the first reinforcing part away from the connecting beam. The base beam has a first transverse stepped surface corresponding to the connecting beam, a vertical stepped surface corresponding to the first reinforcing part, and a second transverse stepped surface corresponding to the second reinforcing part. The base beam is provided with the connecting adhesive layer between itself and the adjusting member at three locations: the first transverse stepped surface, the vertical stepped surface, and the second transverse stepped surface. In this embodiment, by designing the first and second reinforcing parts of the reinforcing plate as an angled structure, and combining this with the application of different stepped surfaces and connecting adhesive layers on the base beam, the stability between the connecting beam and the base beam is improved, and external stress is dispersed.

[0012] In some embodiments, reinforcing ribs are provided between the connecting beam and the base beam, and / or, reinforcing ribs are provided between the reinforcing plate and the base beam. In this embodiment, the addition of reinforcing ribs is equivalent to adding "reinforcing locking points" to the stress area of ​​the connecting adhesive layer, making it less prone to slippage or peeling under shear and tensile forces, thereby improving the connection strength of the connecting adhesive layer.

[0013] In some embodiments, the reinforcing rib is disposed between the second transverse step and the second reinforced portion, and the reinforcing rib extends along the length direction of the base beam. This embodiment can reduce production costs. The reinforcing rib is long and strip-shaped, and its arrangement along the length direction ensures that there are reinforced support points throughout the entire longitudinal direction of the base beam, which can evenly distribute the load and reduce localized concentrated stress.

[0014] In some embodiments, there are multiple reinforcing ribs, which are arranged at intervals from the base beam to the first side beam. In this embodiment, multiple layers of reinforcing support can be provided to the connecting adhesive layer in the direction of force.

[0015] In some embodiments, the base plate is provided with a third mounting hole; the base beam includes a base body and a second nut seat, the base body has a cavity with a second mounting opening, the second nut seat passes through the base body and is partially disposed within the cavity, and the second nut seat has a fourth mounting hole; the adjustment assembly includes a second fastener, the second fastener passing through the third mounting hole and the fourth mounting hole in sequence, and the second fastener and the second nut seat are threadedly connected in the fourth mounting hole. In this embodiment, by making the base body hollow, the weight and material cost of the base beam are reduced, and the threaded connection of the second nut seat allows for quick fastening of the base beam during installation, improving assembly efficiency.

[0016] In some embodiments, the housing further includes a bottom protective plate disposed on the side of the base plate opposite to the base beam; the bottom protective plate has a mounting groove communicating with the third mounting hole, and a portion of the second fastener is disposed within the mounting groove. In this embodiment, the base beam and the base plate are connected by the second fastener, which can provide greater support to the base beam. In addition, the bottom protective plate disposed beneath the base plate can improve the sealing performance of the battery device.

[0017] In some embodiments, the frame further includes a second side beam, and the housing further includes a support beam disposed on the base plate; the first side beam, the base beam, the support beam, and the second side beam are arranged sequentially at intervals along a first direction; a first region is provided between the first side beam and the base beam, a second region is provided between the base beam and the support beam, and a third region is provided between the support beam and the second side beam; the number of battery cells is multiple, with some battery cells installed in the first region and some battery cells installed in the third region; the second region is used to install the electronic control device; in the first direction, the length of the first region is less than the length of the third region. In this embodiment, due to the small length of the first region, and the limited number of battery cells that can be accommodated in the first region, the buffer structure between battery cells cannot provide the compression required for the battery cells to enter the housing, making it difficult to install the battery cells. The setting of the second region provides installation space for the electronic control device and reduces the impact of adding adjustment components on the installation areas of other battery cells.

[0018] This application also proposes an electrical device, which includes the battery device described in any of the foregoing embodiments, the battery device being used to provide electrical energy.

[0019] 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

[0020] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0021] Figure 1 This is a schematic diagram of the vehicle structure according to some embodiments of this application;

[0022] Figure 2 This is an exploded view of the battery device according to some embodiments of this application;

[0023] Figure 3 This is an exploded structural diagram of a battery cell according to some embodiments of this application;

[0024] Figure 4 This is a partial structural diagram of the box body according to some embodiments of this application;

[0025] Figure 5 for Figure 2 A schematic diagram of a partially cut section of the structure;

[0026] Figure 6 This is a schematic diagram of the structure of the base beam in some embodiments of this application;

[0027] Figure 7 for Figure 6 A cross-sectional structural diagram;

[0028] Figure 8 This is a schematic diagram of the structure of the adjusting member in some embodiments of this application;

[0029] Figure 9 for Figure 8 A cross-sectional structural diagram.

[0030] The reference numerals in the detailed embodiments are as follows:

[0031] 1. Vehicle; 10. Battery unit; 20. Controller; 30. Motor;

[0032] 100. Battery cell; 110. Casing; 120. End cap; 121. Electrode terminal; 130. Cell assembly; 131. Tab;

[0033] 200. Box body; 201. First part; 202. Second part; 203. Receiving groove; 203a. First area; 203b. Second area; 203c. Third area; 204. Opening; 210. Bottom plate; 220. Frame; 221. First side beam; 222. Second side beam; 223. Third side beam; 224. Support beam; 230. Bottom guard plate;

[0034] 300. Adjustment component; 310. Base beam; 311. Base body; 311a. First horizontal step surface; 311b. Vertical step surface; 311c. Second horizontal step surface; 312. First nut seat; 312a. First mounting hole; 313. Second nut seat; 314. Cavity; 315. First mounting port; 320. Adjustment component; 321. Connecting beam; 321a. Second mounting hole; 322. Insertion plate; 323. Reinforcing plate; 323a. First reinforcing part; 323b. Second reinforcing part; 330. Reinforcing rib; 340. First fastener; 341. Connecting rod; 342. Limiting part; 350. Second fastener; 400. Buffer layer;

[0035] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple groups" refers to two or more (including two groups), and "multiple pieces" refers to two or more (including two pieces).

[0042] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and 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.

[0043] 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.

[0044] With the development of the market, the application scope of power batteries is becoming increasingly wide. They are not only widely used in energy storage systems such as hydropower, thermal power, wind power, and solar power, but also in transportation vehicles such as electric bicycles, electric motorcycles, and electric cars, and even in fields such as aerospace. As these application areas continue to expand, the market demand for power batteries is also constantly increasing.

[0045] Optimizing battery device technology requires comprehensive consideration of multiple design factors, such as reliability, cycle life, discharge capacity, and charge / discharge rate. CTP (Continuous To-Patient) battery devices are a highly integrated power battery technology that directly integrates individual battery cells into a housing by eliminating or simplifying the module layers in traditional battery packs, thereby improving energy density and reducing costs. In a CTP battery device, there can be multiple individual battery cells, which can be connected in series, parallel, or a hybrid configuration. Multiple individual battery cells can be directly connected in series, parallel, or a hybrid configuration, and then housed within a housing. In this case, the housing must simultaneously support the positioning of the battery cells and resist external compressive forces and the expansion forces generated during cell charging and discharging. The gap between adjacent battery cells must be strictly controlled; gaps that are too large or too small can affect battery performance.

[0046] When the size of the CTP battery device is small or one of the compartments for holding individual battery cells in the CTP battery device is small, the number of individual battery cells that can be accommodated in the box or compartment is small. The buffer structure between the individual battery cells cannot provide the compression required for the individual battery cells to enter the box, making it difficult to put them into the box.

[0047] Based on this, in order to reduce the difficulty of loading individual battery cells into the housing, the technical solution of this application adjusts the configuration of the component. The component includes a base beam and an adjusting member. The base beam is fixed inside the housing. The individual battery cells are installed in the receiving slot from the opening and are located between the base beam and the first side beam. The adjusting member has multiple mounting positions on the base beam. The multiple mounting positions are arranged sequentially from the base beam to the first side beam. After the adjusting member is installed in the corresponding mounting position, the individual battery cells are confined between the adjusting member and the first side beam.

[0048] The battery device disclosed in this application can be used, but is not limited to, in electrical devices such as vehicles, ships, or aircraft. A power system for this electrical device can be composed of battery cells and batteries disclosed in this application. This helps to mitigate and automatically regulate the deterioration of cell expansion force, replenish electrolyte consumption, and improve the stability of battery performance and battery life.

[0049] This application provides an electrical device that uses a battery as a power source. The electrical device can be, but is not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0050] For ease of explanation, the following embodiments use a vehicle as an example of an electrical device according to an embodiment of this application; in the embodiments of this application, the reference numerals with arrows indicate holes, surfaces, cavities or spaces.

[0051] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle 1 provided in some embodiments of this application. Vehicle 1 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 is installed inside vehicle 1, and the battery can be located at the bottom, front, or rear of vehicle 1. The battery can be used to power vehicle 1; for example, the battery can serve as the operating power source for vehicle 1. Vehicle 1 may also include a controller 20 and a motor 30. The controller 20 is used to control the battery to supply power to the motor 30, for example, to meet the power needs of vehicle 1 during starting, navigation, and driving. In some embodiments of this application, the battery can not only serve as the operating power source for vehicle 1 but also as the driving power source for vehicle 1, replacing or partially replacing gasoline or natural gas to provide driving power for vehicle 1.

[0052] Please refer to Figure 2 , Figure 2 This is an exploded structural diagram of a battery device according to some embodiments of this application. The battery device 10 includes a housing 200 and a battery cell 100, with the battery cell 100 housed within the housing 200. The housing 200 provides a accommodating space for the battery cell 100, and the housing 200 can adopt various structures. In some embodiments, the housing 200 may include a first portion 210 and a second portion 220, which overlap each other, jointly defining a accommodating space for accommodating the battery cell 100. The second portion 220 may be a hollow structure with one open end, and the first portion 210 may be a plate-like structure, covering the open side of the second portion 220 so that the first portion 210 and the second portion 220 jointly define the accommodating space; alternatively, the first portion 210 and the second portion 220 may both be hollow structures with one open side, with the open side of the first portion 210 covering the open side of the second portion 220. Of course, the box 200 formed by the first part 210 and the second part 220 can be of various shapes, such as cylinder, cuboid, etc.

[0053] In the battery device 10, there can be multiple battery cells 100. These multiple battery cells 100 can be connected in series, parallel, or in a mixed configuration. A mixed configuration means that multiple battery cells 100 are connected in both series and parallel. Multiple battery cells 100 can be directly connected in series, parallel, or in a mixed configuration, and then the entire assembly of the multiple battery cells 100 is housed within the housing 200. Alternatively, the battery device 10 can also be in the form of multiple battery cells 100 first connected in series, parallel, or in a mixed configuration to form battery cell groups, and then these battery cell groups are connected in series, parallel, or in a mixed configuration to form a whole, which is also housed within the housing 200. The battery device 10 may also include other structures; for example, it may include a busbar component for realizing the electrical connection between the multiple battery cells 100.

[0054] The battery cell 100 may include, but is not limited to, lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries. The shape of the battery cell 100 may include, but is not limited to, cylindrical, flat, cuboid, or other shapes. Depending on the packaging method, the battery cell 100 may include, but is not limited to, cylindrical battery cells 100, square battery cells 100, pouch battery cells 100, and blade battery cells 100.

[0055] Please refer to Figure 3 , Figure 3 This is an exploded structural diagram of a battery cell provided in some embodiments of this application. Battery cell 100 refers to the smallest unit that makes up a battery. Figure 3 As shown, the battery cell 100 includes an end cap 120, a housing 110, a cell assembly 130, and other functional components.

[0056] End cap 120 refers to a component that covers the opening of housing 110 to isolate the internal environment of battery cell 100 from the external environment. Not limited to this, the shape of end cap 120 can be adapted to the shape of housing 110 to fit it. Optionally, end cap 120 can be made of a material with a certain hardness and strength (such as aluminum alloy), so that end cap 120 is not easily deformed under compression and impact, allowing battery cell 100 to have higher structural strength and improved safety performance. Functional components such as electrode terminals 121 can be provided on end cap 120. Electrode terminals 121 can be used for electrical connection with cell assembly 130 for outputting or inputting electrical energy from battery cell 100. In some embodiments, end cap 120 may also be provided with a pressure relief mechanism for releasing internal pressure when the internal pressure or temperature of battery cell 100 reaches a threshold. The end cap 120 can be made of various materials, 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 be provided on the inner side of the end cap 120. The insulating element can be used to isolate the electrical connection components in the housing 110 from the end cap 120 to reduce the risk of short circuit. For example, the insulating element can be plastic, rubber, etc.

[0057] The housing 110 is a component used to cooperate with the end cap 120 to form the internal environment of the battery cell 100, wherein the formed internal environment can accommodate the cell assembly 130, electrolyte, and other components. The housing 110 and the end cap 120 can be independent components. An opening can be provided on the housing 110, and the end cap 120 closes the opening to form the internal environment of the battery cell 100. Alternatively, the end cap 120 and the housing 110 can be integrated. Specifically, the end cap 120 and the housing 110 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 110, the end cap 120 closes the housing 110. The housing 110 can have various shapes and sizes, such as cuboid, cylindrical, hexagonal prism, etc. Specifically, the shape of the housing 110 can be determined according to the specific shape and size of the cell assembly 130. The shell 110 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.

[0058] The cell assembly 130 is the component in the battery cell 100 where the electrochemical reaction occurs. The casing 110 may contain one or more cell assemblies 130. The cell assembly 130 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 cell assembly 130, 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 separately at both ends of the main body. During the charging and discharging process of the battery, the positive and negative active materials react with the electrolyte, and the tabs connect to the electrode terminals 121 to form a current loop.

[0059] According to some embodiments of this application, please refer to Figure 4 And further reading Figures 5 to 9 The battery device 10 includes a housing 200, an adjustment assembly 300, and battery cells 100. The housing 200 has a base plate 210 and a frame 220 disposed on the base plate 210. The base plate 210 and the frame 220 define a receiving groove 203 with an opening 204 on one side. The frame 220 has a first side beam 221. The adjustment assembly 300 is disposed in the receiving groove 203. The adjustment assembly 300 includes a base beam 310 and an adjustment member 320. The base beam 310 is disposed on the base plate 200. 10, and is positioned opposite and spaced apart from the first side beam 221; the battery cell 100 is installed in the receiving groove 203 from the opening 204 and is located between the base beam 310 and the first side beam 221; the adjusting member 320 has multiple mounting positions on the base beam 310, and the multiple mounting positions are arranged sequentially from the base beam 310 to the first side beam 221. After the adjusting member 320 is installed in the corresponding mounting position, the battery cell 100 is confined between the adjusting member 320 and the first side beam 221.

[0060] As described above, the housing 200 provides a space for accommodating the battery cell 100. The housing 200 can have various structures, including a first portion 201 and a second portion 202, which overlap each other, together defining the accommodating space for accommodating the battery cell 100. In some embodiments, the first portion 201 and the second portion 202 can both be hollow structures with an opening 204 on one side, with the opening 204 side of the first portion 201 overlapping the opening 204 side of the second portion 202. In this embodiment, the first side beam 221 can be disposed in the first portion 201 or the second portion 202. In other embodiments, the first portion 201 is a hollow structure with an opening 204 at one end, and the second portion 202 is a plate-like structure, overlapping the opening 204 side of the first portion 201, so that the first portion 201 and the second portion 202 together define the accommodating space. For ease of explanation, the following will take a square-shell battery as an example, in which the casing 200 adopts a hollow structure with the first part 201 having an opening 204 at one end, and the second part 202 having a plate-like structure, with the second part 202 covering the opening 204 side of the first part 201.

[0061] For example, the first part 201 includes a base plate 210 and a frame 220 disposed on the base plate 210. The base plate 210 and the frame 220 define a receiving groove 203 with an opening 204 on one side. The second part 202 covers the opening 204 side of the first part 201. Generally, the frame 220 is usually a cuboid-shaped frame 220, but it can also be a square-shaped frame 220, a hexagonal-shaped frame 220, or other regular or irregular frame 220, etc., without specific limitations here. Correspondingly, the shape of the receiving groove 203 matches the shape of the frame 220. If the frame 220 is a cuboid-shaped frame 220, then the space inside the receiving groove 203 is cuboid-shaped.

[0062] Please see Figure 4 In this application, taking a rectangular parallelepiped shape for the frame 220 as an example, the frame 220 includes multiple side beams, where each side beam typically refers to a portion of the box 200 that serves as an external support structure. The aforementioned first side beam 221 may be one of these side beams; in this embodiment, the first side beam 221 serves as a positional reference. Furthermore, for ease of subsequent description, the second side beam 222 is defined as being opposite to and spaced apart from the first side beam 221, and the third side beam 223 is defined as being connected between the first side beam 221 and the second side beam 222.

[0063] A battery cell 100 is disposed in a housing 200. The multiple battery cells 100 can be arranged in an array within the housing 200. This array arrangement is typically a rectangular array or a linear array. Taking a prismatic battery as an example, the multiple battery cells 100 are arranged in a linear array within the housing 200. In other words, the multiple battery cells 100 are arranged at intervals along the length or width extension direction of the housing 200. In other embodiments, the multiple battery cells 100 are arranged in an array within the housing 200.

[0064] An adjustment component 300 is disposed within the receiving groove 203. The adjustment component 300 allows for adjustment of the effective space within the receiving groove 203 for mounting the battery cells 100 during the assembly process of the battery device 10, thereby reducing the difficulty of inserting the battery cells 100 into the casing. In embodiments of this application, the adjustment component 300 includes a base beam 310 and an adjustment member 320.

[0065] The base beam 310 is located on the base plate 210. In other words, the base beam 310 is installed on the base plate 210, although it's also possible that the base beam 310 and the base plate 210 are integrally formed. There are many ways to install the base beam 310 on the base plate 210, such as connecting it with fastening components, welding, etc. Of course, other installation methods are also possible, as long as the connection strength between the base beam 310 and the base meets relevant requirements. In the embodiments of this application, the base beam 310 serves as a component for installing and supporting the adjusting member 320. The base beam 310 is typically a rectangular columnar structure, and its interior can be designed to be hollow or solid. Reinforcing ribs 330 or grooves can be added to the surface. To reduce the material cost of the base beam 310, its interior is hollow. Generally, to improve the structural strength of the base beam 310, ribs are provided inside. Of course, the cross-sectional shape of the base beam 310 can also be trapezoidal, hexagonal, or other regular or irregular shapes, which will not be listed here.

[0066] The adjusting component 320 is installed on the base beam 310. Generally, part of the adjusting component 320 is located between the first side beam 221 and the base beam 310. Thus, during the assembly process, by adjusting the installation position of the adjusting component 300, the effective space for installing the battery cells 100 in the battery device 10 can be adjusted. The adjusting component 320 has many structures, such as the combination of the plug plate 322 and the connecting beam 321, the combination of the plug plate 322 and the connecting plate, or the combination of the plug plate 322 and the connecting block; it can also be the combination of the plug strip and the connecting beam 321, the combination of the plug strip and the connecting plate, or the combination of the plug strip and the connecting block.

[0067] The adjusting member 320 has multiple mounting positions on the base beam 310. These mounting positions are arranged sequentially from the base beam 310 to the first side beam 221. This means that after the adjusting member 320 is pre-installed on the base beam 310, and before the adjusting member 320 is fixed to the base beam 310, the adjusting member 320 can move relative to the base beam 310 in the direction from the base beam 310 to the first side beam 221. In other words, the adjusting member 320 can be adjusted by translation within a certain distance from the base beam 310 to the first side beam 221 at its mounting position on the base beam 310.

[0068] After the adjusting member 320 is installed in the corresponding mounting position, it confines the battery cell 100 between the adjusting member 320 and the first side beam 221. The corresponding mounting position refers to one of a plurality of mounting positions. When the adjusting member 320 is installed in this position, the adjusting member 320 abuts against the battery cell 100, and the first side beam 221 also abuts against the battery cell 100, thereby confining the battery cell 100 between the adjusting member 320 and the first side beam 221. At this time, the adjusting member 320 and the first side beam 221 can provide the battery cell 100 with a certain fixing force, resist external extrusion force and expansion force generated by the charging and discharging of the cell.

[0069] In one example, the adjustment component 320 and the base beam 310 can be installed by providing mounting holes on both. Fasteners, such as bolts or screws, are sequentially inserted into these holes. The mounting holes on the base beam 310 are threaded, while those on the adjustment component 320 are typically elongated or slotted. Alternatively, the fasteners can be a combination of bolts and nuts. The opening areas of the mounting holes can be different; for example, the diameters of the two holes can be different, or one hole can be slotted or elongated while the other is round. After the bolt passes through the two mounting holes, it is fixed to the nut, thus installing the adjustment component 320 onto the base beam 310. In another example, a pin hole can be provided on one of the base beam 310 and the adjusting member 320, and a cylindrical pin or a conical pin can be provided on the other. The length direction of the pin hole extends from the base beam 310 to the first side beam 221. After the adjusting member 320 finds the corresponding installation position, it is fixed to the base beam 310 by welding or other connection processes. Of course, there are other installation methods, as long as the adjusting member 320 has multiple installation positions on the base beam 310, and the multiple installation positions are arranged sequentially from the base beam 310 to the first side beam 221. After the adjusting member 320 is fixedly installed in the corresponding installation position, the battery cell 100 is confined between the adjusting member 320 and the first side beam 221.

[0070] The assembly process of the battery device 10 involved in this application involves: preparing a combination of a base plate 210, a frame 220, and a base beam 310 assembled according to the corresponding installation rules; then installing a battery cell 100 (which can also be multiple battery cells 100 or a group of battery cells 100) from the opening 204 into the receiving groove 203, with the battery cell 100 located between the base beam 310 and the first side beam 221, thereby completing the pre-installation of the battery cell 100; at this time, the portion of the receiving groove 203 near the base beam 310 has an installation gap, so the adjusting member 320 is inserted from the opening 204 into the installation gap; then, since the adjusting member 320 has multiple mounting positions on the base beam 310, by adjusting the mounting position of the adjusting member 320 on the base beam 310, and after finding the corresponding mounting position, fixing the adjusting member 320 on the base beam 310, at this time, the adjusting member 320 can limit the battery cell 100 between the adjusting member 320 and the first side beam 221.

[0071] The technical solution of this application first constructs a relatively spacious installation space through the base plate 210, the frame 220, and the base beam 310, which facilitates the initial placement of the battery cell 100 and reduces the difficulty of placing the battery cell 100 into the casing. Then, the adjusting member 320 is installed on the base beam 310. Since the adjusting member 320 has multiple mounting positions arranged sequentially from the base beam 310 to the first side beam 221 on the base beam 310, after the adjusting member 320 is installed in the corresponding mounting position, when adjusted and installed in that position, the adjusting member 320 can limit the battery cell 100 between the adjusting member 320 and the first side beam 221. In this way, the adjusting member 320 and the first side beam 221 can provide a certain fixing force to the battery cell 100, resist external extrusion force and expansion force generated by the charging and discharging of the cell, and can reduce the requirements for the size of the battery cell 100 and the manufacturing precision of the casing 200 to a certain extent, providing greater tolerance for the production process.

[0072] In one embodiment, please refer to Figure 5 , Figure 8 and Figure 9 The adjusting member 320 includes a connecting beam 321 and a plug plate 322 disposed on the connecting beam 321. The connecting beam 321 is disposed on the side of the base beam 310 away from the bottom plate 210. After the connecting beam 321 is installed in the corresponding mounting position, the plug plate 322 is inserted between the battery cell 100 and the base beam 310, and the plug plate 322 abuts against the battery cell 100.

[0073] As the load-bearing structure of the adjusting member 320, the connecting beam 321, compared to the structures of connecting plates, connecting blocks, and connecting strips, can reduce local stress concentration, improve the structural strength of the adjusting member 320, and enhance the strength of the connection structure between the adjusting member 320 and the base beam 310. Similar to the base beam 310, to reduce the space occupied by the connecting beam 321, in this embodiment, the connecting beam 321 is typically a rectangular columnar structure, and its interior can be designed to be hollow or solid. Reinforcing ribs 330 or grooves can be added to its surface. To reduce the material cost of the connecting beam, the interior of the connecting beam 321 is hollow. Generally, to improve the structural strength of the base beam 310, reinforcing ribs are also provided inside the base beam 310. Of course, the cross-sectional shape of the connecting beam 321 can also be trapezoidal, hexagonal, or other regular or irregular shapes. The connecting beam 321 is located on the side of the base beam 310 facing away from the base plate 210, and the installation and position adjustment of the connecting beam 321 reduce the installation difficulty of the connecting beam 321.

[0074] The plug-in plate 322, which is a plate-shaped plug-in part, reduces the space occupied by the adjusting component 320 in the receiving groove 203 and makes it easier to insert between the battery cell 100 and the base beam 310. The plug-in plate 322 is inserted between the battery cell 100 and the base beam 310 to fill the assembly gap and reduce the displacement of the battery cell 100 due to vibration or thermal expansion. The plate-shaped plug-in part abuts against the battery cell 100, which is a surface contact with a large contact surface, resulting in more uniform force distribution between the battery cell 100 and the plug-in plate 322.

[0075] In this embodiment, the combination of the connecting beam 321 and the plug plate 322 can improve the structural strength of the adjusting member 320, as well as the strength of the connection structure between the adjusting member 320 and the base beam 310, reduce the space occupied by the adjusting member 320 in the receiving groove 203, and improve the uniformity of force between the battery cell 100 and the plug plate 322.

[0076] In some embodiments, please refer to Figure 5 A buffer layer 400 is provided between the plug plate 322 and the battery cell 100. When the plug plate 322 comes into contact with the battery cell 100, it can absorb the impact force of the contact surface and reduce damage caused by hard friction.

[0077] In some embodiments, please refer to Figure 5 , Figure 7 and Figure 9The base beam 310 has a first mounting hole 312a on the side facing away from the bottom plate 210, and the connecting beam 321 has a second mounting hole 321a. The adjusting component 300 includes a first fastener 340, which is sequentially inserted into the second mounting hole 321a and the first mounting hole 312a. The opening area of ​​the second mounting hole 321a is different from that of the first mounting hole 312a, so that the adjusting component 320 has multiple mounting positions on the base beam 310.

[0078] A first mounting hole 312a is located on the side of the base beam 310 facing away from the base plate 210, and is used to mate with a second mounting hole 321a on the connecting beam 321. A second mounting hole 321a is located on the connecting beam 321 and mates with the first mounting hole 312a. Through the second mounting hole 321a and the engagement of a first fastener 340, the connecting beam 321 can be mounted on the base beam 310. The first fastener 340 is used to secure the adjusting assembly 300. The fastener passes sequentially through the second mounting hole 321a and the first mounting hole 312a, thus fastening the connecting beam 321 to the base beam 310.

[0079] In this embodiment, the first fastener 340 may be a combination of a bolt and a nut. The opening area of ​​the second mounting hole 321a is different from that of the first mounting hole 312a. This could be due to different diameters of the two mounting holes, or one mounting hole being an oblong or elongated hole, and the other a round hole, etc. The bolt passes through the two mounting holes in sequence and is then fixedly connected to the nut, thereby enabling the adjusting member 320 to be installed on the base beam 310. Alternatively, the first fastener 340 may be a bolt. In this case, the first mounting hole 312a is a round hole and a threaded hole. The diameter of the first mounting hole 312a is, for example, a bolt. Figure 7 As shown in d1, the second mounting hole 321a is an oblong or elongated hole, and the length of the second mounting hole 321a is as follows: Figure 9 As shown in L2, the second mounting hole 321a extends from the base beam 310 to the first side beam 221, and the hole length of the second mounting hole 321a is greater than the diameter of the first mounting hole 312a.

[0080] In this embodiment, the opening area of ​​the second mounting hole 321a is different from that of the first mounting hole 312a, so the mating positions between the second mounting hole 321a and the first mounting hole 312a are no longer in a one-to-one correspondence. This provides multiple mounting positions arranged sequentially from the base beam 310 to the first side beam 221 on the base beam 310 of the adjusting member 320, allowing for fine-tuning of the position of the adjusting member 320 on the base beam 310. This provides flexible adjustment space, thereby changing the position of the connecting beam 321 and enhancing the adaptability and adjustability of the structure. During installation, an appropriate installation position can be selected according to actual needs.

[0081] In some embodiments, please refer to Figure 5 , Figure 7 and Figure 9 The first fastener 340 includes a connecting rod 341 and a limiting part 342 disposed on the connecting rod 341. The limiting part 342 abuts against the connecting beam 321. The connecting rod 341 passes through the second mounting hole 321a and the first mounting hole 312a in sequence. The connecting rod 341 is internally threaded to the base beam 310 in the first mounting hole 312a. The length of the second mounting hole 321a from the base beam 310 to the first side beam 221 is greater than the diameter of the first mounting hole 312a, so that the adjusting member 320 has multiple mounting positions on the base beam 310.

[0082] The first fastener 340 includes a connecting rod 341 and a limiting part 342 disposed on the connecting rod 341. In this application, the first fastener 340 can be a bolt, a screw, or other structures similar to a bolt. Taking a bolt as an example, the connecting rod 341 is a threaded rod. The function of the connecting rod 341 is to fix the connecting beam 321 and the base beam 310 together through a threaded connection, providing a stable mechanical connection. Through the threaded connection, a firm connection can be formed between the adjusting member 320 and the base beam 310, making it less prone to loosening or displacement.

[0083] The limiting part 342 is provided on the connecting rod 341 and abuts against the connecting beam 321. The cooperation between the limiting part 342 and the connecting rod 341 fixes the connecting beam 321 on the base beam 310. The limiting part 342 can also be called a bolt head.

[0084] The threaded connection between the connecting rod 341 and the base beam 310 provides strong fastening force, reducing loosening or displacement caused by vibration or thermal expansion and contraction. This connection method ensures good contact between the connecting beam 321 and the base beam 310 and allows it to withstand greater external forces.

[0085] The length of the second mounting hole 321a is greater than the diameter of the first mounting hole 312a. This design allows for greater adjustment of the position of the connecting beam 321 on the base beam 310, providing multiple mounting positions. The longer length of the second mounting hole 321a allows the connecting beam 321 to slide or adjust its position over a longer range as the connecting rod 341 passes through the two mounting holes, thus enabling the connecting beam 321 to be installed in different positions on the base beam 310.

[0086] In this embodiment, the connection between the connecting beam 321 and the base beam 310 is made more flexible by combining the threaded connection and the difference in the length of the mounting hole, which helps to simplify the connection structure between the connecting beam 321 and the base beam 310.

[0087] In some embodiments, please refer to Figure 5 , Figure 7 and Figure 9 The base beam 310 includes a base body 311 and a first nut seat 312. The base body 311 is provided with a cavity 314, and the cavity 314 has a first mounting port 315. The first nut seat 312 passes through the base body 311 and is partially disposed in the cavity 314. A first mounting hole 312a is opened in the first nut seat 312, and the connecting rod 341 is threadedly connected to the first nut seat 312 in the first mounting hole 312a.

[0088] The base body 311 is the main structure of the base beam 310. The base body 311 has a cavity 314, which is an internal space. In other words, in order to reduce the weight and material cost of the base beam 310, the base beam 310 is hollow in this application. Since the wall thickness of the hollow base beam 310 may not meet the depth requirements of the first mounting hole 312a, a nut seat is added.

[0089] The first nut seat 312 passes through the base body 311 and is partially located within the cavity 314. The function of the first nut seat 312 is typically to provide a threaded connection point with the connecting rod 341, securing the connecting rod 341 via the threads. The engagement between the first nut seat 312 and the base body 311 allows the connecting rod 341 to be securely mounted on the base body 311, providing a stable connection. The connection between the first nut seat 312 and the base body 311 is typically achieved through riveting. Riveting refers to the plastic deformation of the riveted component (first nut seat 312) under external tensile force during the riveting process. The deformation usually occurs at a specially designed location, and the connection is achieved by clamping the deformed part against the base material (base body 311).

[0090] The cavity 314 has a first mounting port 315, and the first nut seat 312 passes through the base body 311 and is partially disposed within the cavity 314. That is, the positional relationship between the first nut seat 312 and the base body 311 can be divided into two parts: one part is located within the cavity 314, and the other part is located within the first mounting port 315, connected to the base body 311 at the first mounting port 315 (e.g., by welding), thus fixing the first nut seat 312 to the base body 311. The positional relationship between the first nut seat 312 and the base body 311 can also be divided into three parts, such as... Figure 5 As shown, one part is located inside the cavity 314, another part is located inside the first mounting port 315, and another part is located outside the cavity 314. The part inside the cavity 314 and the part outside the cavity 314 cooperate to clamp the base body 311, so that the first nut seat 312 is fixed on the base body 311.

[0091] The first mounting hole 312a is provided on the first nut seat 312. That is, the first nut seat 312 has a mounting hole directly drilled in it, including at least a portion of which is threaded. Alternatively, the entire first mounting hole 312a can be threaded. The connecting rod 341 passes through this mounting hole and is fastened to the first nut seat 312 by means of the thread. Through the threaded connection, the fixation between the connecting rod 341 and the base body 311 is more stable, able to withstand external forces and prevent loosening due to vibration or other factors.

[0092] In this embodiment, the hollow design of the base body 311 reduces the weight and material cost of the base beam 310. The threaded connection of the first nut seat 312 allows for quick fastening of the adjusting component 320 during installation, improving assembly efficiency.

[0093] In some embodiments, please refer to Figure 5 The adjusting member 320 also includes a reinforcing plate 323 disposed on the connecting beam 321, the reinforcing plate 323 and the plug plate 322 being located on opposite sides of the base beam 310 respectively; a connecting adhesive layer is provided between the connecting beam 321 and the base beam 310, and / or, a connecting adhesive layer is provided between the reinforcing plate 323 and the base beam 310.

[0094] The reinforcing plate 323, as part of the adjusting member 320, is disposed on the connecting beam 321 and located on both sides of the base beam 310. Its function is to enhance the strength and rigidity of the connecting beam 321. The reinforcing plate 323 can be a straight plate, an L-shaped plate, or other shaped plates, and is not limited thereto. The presence of the reinforcing plate 323 helps to reduce deformation or loosening of the connecting beam 321 or the first fastener 340 during use, especially under the influence of large external forces or vibrations. The combination of the connecting beam 321 and the reinforcing plate 323 improves the load-bearing capacity of the adjusting member 320. With the support of the reinforcing plate 323, the load distribution of the adjusting member 320 is more uniform, which helps to improve the overall strength and reliability of the structure. The design of the reinforcing plate 323 can be adjusted in thickness and material as needed to adapt to different usage requirements.

[0095] The main function of the adhesive layer is to enhance the connection strength between the components it connects through bonding force. The adhesive layer provides a stable bond, making the interface between the components more secure. The adhesive layer has a certain degree of elasticity, which can effectively absorb external vibration and impact, reducing loosening or displacement caused by vibration or impact.

[0096] A connecting adhesive layer is provided between the connecting beam 321 and the base beam 310, and / or, a connecting adhesive layer is provided between the reinforcing plate 323 and the base beam 310; that is, a connecting adhesive layer can be provided between the connecting beam 321 and the base beam 310, or between the reinforcing plate 323 and the base beam 310, or connecting adhesive layers can be provided between the connecting beam 321 and the base beam 310, and between the reinforcing plate 323 and the base beam 310 respectively, thereby improving the connection strength between the adjusting member 320 and the base beam 310.

[0097] For example, the connecting adhesive layer is formed after the adjusting member 320 is installed and fixed in the corresponding mounting position. This can be achieved by applying adhesive through an adhesive applicator between the reinforcing plate 323 and the base beam 310, or between the connecting beam 321 and the base beam 310. The adhesive then solidifies to form the adhesive layer. The adhesive can be epoxy resin, polyurethane, or acrylic, etc., and is not limited to any particular type. Generally, the choice depends on the specific battery application scenario (such as electric vehicles, energy storage systems, or portable devices) and the requirements for structural strength, shock resistance, and temperature resistance, as well as the battery's operating environment, lifespan, and safety requirements.

[0098] In this embodiment, by providing a connecting adhesive layer between the connecting beam 321 and the base beam 310, and between the reinforcing plate 323 and the base beam 310, not only is the connection strength between the base beam 310 and the adjusting member 320 enhanced, but the stability of the overall structure is also effectively improved.

[0099] In some embodiments, please refer to Figure 5 , Figure 7 and Figure 9 The reinforcing plate 323 includes a first reinforcing part 323a and a second reinforcing part 323b that are connected to each other and arranged at an angle. The first reinforcing part 323a is connected to the connecting beam 321, and the second reinforcing part 323b is located on the side of the first reinforcing part 323a away from the connecting beam 321. The base beam 310 has a first horizontal step surface 311a corresponding to the connecting beam 321, a vertical step surface 311b corresponding to the first reinforcing part 323a, and a second horizontal step surface 311c corresponding to the second reinforcing part 323b. The base beam 310 is provided with a connecting adhesive layer between itself and the adjusting member 320 at three locations: the first horizontal step surface 311a, the vertical step surface 311b, and the second horizontal step surface 311c.

[0100] The first reinforcing part 323a and the second reinforcing part 323b are the main components of the reinforcing plate 323. These two reinforcing parts are connected and arranged at an angle. That is, in this embodiment, the reinforcing plate 323 is arranged in an L-shape. Through the coordinated work of these two reinforcing parts, the stability of the reinforcing plate 323 under external stress can be effectively enhanced.

[0101] The design of the base beam 310 includes multiple different stepped surfaces: the first horizontal stepped surface 311a corresponds to the connecting beam 321 and provides a contact surface with the connecting beam 321; the vertical stepped surface 311b corresponds to the first reinforcing part 323a and provides a supporting surface with the first reinforcing part 323a; the second horizontal stepped surface 311c corresponds to the second reinforcing part 323b and forms a contact surface with the second reinforcing part 323b. The design of these different stepped surfaces on the base beam 310 enables the reinforcing plate 323 to be stably connected to the base beam 310 and to provide balanced mechanical support in different directions. In this way, stress can be effectively dispersed and stress concentration in a single direction can be reduced.

[0102] Furthermore, in this embodiment, the adhesive layer is applied on different stepped surfaces: adhesive layers are respectively provided on the first horizontal stepped surface 311a, the vertical stepped surface 311b, and the second horizontal stepped surface 311c; the shock absorption and impact resistance functions of the adhesive layer make the structure more stable in high vibration environments.

[0103] In this embodiment, by designing the first reinforcing part 323a and the second reinforcing part 323b of the reinforcing plate 323 as an angled structure, and combining the application of different stepped surfaces and connecting adhesive layers on the base beam 310, the stability between the connecting beam 321 and the base beam 310 is improved, and external stress is dispersed.

[0104] In some embodiments, please refer to Figure 5 and Figure 6 A reinforcing rib 330 is provided between the connecting beam 321 and the base beam 310, and / or a reinforcing rib 330 is provided between the reinforcing plate 323 and the base beam 310.

[0105] The reinforcing rib 330 can be installed on the base beam 310, the connecting beam 321, or the reinforcing plate 323. The reinforcing rib 330 is generally integrally formed with the base beam 310, connecting beam 321, or reinforcing plate 323, but it can also be formed by welding, etc., without specific limitations. The reinforcing rib 330 can be long strips, short strips, blocks, etc. In one example, a connecting adhesive layer is provided between the connecting beam 321 and the base beam 310; in this case, a reinforcing rib 330 is provided between the reinforcing plate 323 and the base beam 310. In another example, a connecting adhesive layer is provided between the reinforcing plate 323 and the base beam 310; correspondingly, a reinforcing rib 330 is provided between the reinforcing plate 323 and the base beam 310. In another example, a connecting adhesive layer is provided between the connecting beam 321 and the base beam 310, and a connecting adhesive layer is provided between the reinforcing plate 323 and the base beam 310; correspondingly, a reinforcing rib 330 is provided between the connecting beam 321 and the base beam 310, and a reinforcing rib 330 is provided between the reinforcing plate 323 and the base beam 310; or, a reinforcing rib 330 is provided only between the reinforcing plate 323 and the base beam 310; or, a reinforcing rib 330 is provided only between the second transverse step surface 311c and the reinforcing plate 323.

[0106] In this embodiment, by setting the reinforcing rib 330, it is equivalent to adding a "reinforcing locking point" to the stress area of ​​the adhesive layer, making it less prone to slippage or peeling under shear and tensile forces, thereby improving the connection strength of the adhesive layer.

[0107] In some embodiments, please refer to Figure 5 And further reading Figure 6 and Figure 7 The reinforcing rib 330 is disposed between the second transverse step surface 311c and the second reinforcing part 323b.

[0108] The force direction of the adjusting component 320 is mainly in the direction from the base beam 310 to the first side beam 221. That is to say, the connecting adhesive layer between the second transverse step surface 311c and the second reinforcing part 323b is the main force-bearing part. Setting the reinforcing rib 330 at this location can be understood as "using the best steel on the blade". It can strengthen the corresponding weak points while rationally allocating the reinforcement area and reducing production costs.

[0109] In some embodiments, please refer to Figure 5 and Figure 6 The reinforcing rib 330 extends along the length of the base beam 310.

[0110] The reinforcing rib 330 is arranged in a long strip shape along the length direction, so that there are reinforced support points in the entire longitudinal direction of the base beam 310, which can evenly distribute the load and reduce local concentrated stress.

[0111] In some embodiments, please refer to Figure 5 and Figure 6 The number of reinforcing ribs 330 is multiple, and the multiple reinforcing ribs 330 are arranged at intervals from the base beam 310 to the first side beam 221.

[0112] In the embodiments of this application, the number of reinforcing ribs 330 can be one or more. In embodiments where the number of reinforcing ribs 330 is multiple, it can be one, two, three or more, etc., which will not be listed here.

[0113] In this embodiment, there are multiple reinforcing ribs 330, which are arranged at intervals from the base beam 310 to the first side beam 221, providing multi-layered reinforcement support to the connecting adhesive layer in the direction of force.

[0114] In some embodiments, please refer to Figure 5 and Figure 6 The base plate 210 is provided with a third mounting hole; the base beam 310 includes a base body 311 and a second nut seat 313. The base body 311 is provided with a cavity 314, and the cavity 314 has a second mounting opening. The second nut seat 313 passes through the base body 311 and is partially disposed in the cavity 314. The second nut seat 313 has a fourth mounting hole; the adjustment assembly 300 includes a second fastener 350. The second fastener 350 passes through the third mounting hole and the fourth mounting hole in sequence. The second fastener 350 and the second nut seat 313 are threadedly connected in the fourth mounting hole.

[0115] The base plate 210 is fundamental to the entire battery cell 100 assembly process, providing mechanical support for other components of the battery cell 100. Located at the bottom of the battery cell 100, the base plate 210 serves as its support platform. Typically, a frame 220 is provided on the base plate 210. The base plate 210 and frame 220 define a receiving groove 203 with an opening 204 on one side. The battery cell 100 is installed within the receiving groove 203. The base plate 210 and frame 220 are typically secured using bolts, welding, or other fastening methods. Alternatively, as mentioned earlier, the base beam 310 may be integrally formed with the base plate 210 and connected via fastening components, such as welding.

[0116] The base body 311 is the main structure of the base beam 310. The base body 311 has a cavity 314, which is an internal space. In other words, in order to reduce the weight and material cost of the base beam 310, the base beam 310 is hollow in this application. Since the wall thickness of the hollow base beam 310 may not meet the depth requirements of the fourth mounting hole, a nut seat is added.

[0117] The second nut seat 313 passes through the base body 311 and is partially located within the cavity 314. The cooperation between the second nut seat 313 and the base body 311 allows the connecting rod 341 to be securely installed on the base body 311, providing a stable connection. The connection between the first nut seat 312 and the base body 311 is usually achieved by riveting. Riveting refers to the plastic deformation of the riveted part (second nut seat 313) under external tension during the riveting process. The deformation usually occurs at a specially designed location, and the connection is achieved by clamping the deformed part to the base material (base body 311).

[0118] The cavity 314 also has a second mounting port, and the second nut seat 313 passes through the base body 311 and is partially disposed within the cavity 314; that is, the positional relationship between the second nut seat 313 and the base body 311 can be divided into two parts, such as... Figure 5 As shown, one part is located inside the cavity 314, and the other part is located inside the second mounting port, and is connected to the base body 311 at the second mounting port (e.g., by welding), so that the second nut seat 313 is fixed to the base body 311. The positional relationship between the second nut seat 313 and the base body 311 can also be divided into three parts: one part is located inside the cavity 314, another part is located inside the second mounting port, and the third part is located outside the cavity 314. The part inside the cavity 314 and the part outside the cavity 314 cooperate to clamp the base body 311, so that the second nut seat 313 is fixed to the base body 311.

[0119] In this embodiment, by making the base body 311 hollow, the weight and material cost of the base beam 310 are reduced. Through the threaded connection of the second nut seat 313, the base beam 310 can be quickly fastened during installation, thus improving assembly efficiency.

[0120] In some embodiments, please refer to Figure 5 The housing 200 also includes a bottom guard plate 230, which is located on the side of the bottom plate 210 away from the base beam 310. The bottom guard plate 230 is provided with a mounting groove, which communicates with the third mounting hole, and some of the second fasteners 350 are located in the mounting groove.

[0121] The base plate 210 is part of the housing 200, forming the accommodating space. It is located below the battery cell 100 and serves as a support platform for the battery cell 100. Typically, a frame 220 is provided on the base plate 210. The base plate 210 and the frame 220 define an accommodating groove 203 with an opening 204 on one side. The battery cell 100 is installed within the accommodating groove 203. The base plate 210 and the frame 220 are usually securely installed using bolts, welding, or other fixing methods. The installation of the base plate 210 is fundamental to the entire assembly process of the battery cell 100, providing mechanical support for other components of the battery cell 100.

[0122] The bottom protective plate 230 is installed at the bottom of the housing 200, forming a protective layer for the battery housing 200. Generally, a corresponding sealing structure needs to be provided between the bottom protective plate 230 and the battery housing 200 to improve the sealing performance of the bottom surface of the battery housing 200. The bottom protective plate 230 is usually independent of the bottom plate 210; it does not serve as a supporting component for the battery cell 100 but rather as a protective component. The bottom protective plate 230 can be installed on the housing 200 by screw fixing, snap-fit, pressing, or directly connecting to the bottom plate 210 through a designed connecting groove (e.g., a slot). In this way, the bottom protective plate 230 covers the bottom plate 210, forming a protective layer. In one example, the bottom protective plate 230 includes an insulating plate, a metal plate, and a composite plate, which are sequentially stacked and connected along the thickness direction of the bottom protective plate 230. The mounting slot is provided to avoid the second fastener 350 used to connect the base beam 310 and the base plate 210 together.

[0123] The installation sequence of the base plate 210, the base beam 310 and the bottom protective plate 230 is usually as follows: first install the base beam 310 to the base plate 210, and then install the bottom protective plate 230 to the corresponding position on the base plate 210.

[0124] Compared to the scheme where the base beam 310 is connected to the side beam, in this embodiment, the base beam 310 is connected to the bottom plate 210 through the second fastener 350, which can provide greater support for the base beam 310. In addition, since the bottom protective plate 230 is provided under the bottom plate 210, it can alleviate the sealing problem caused by the connection of the base beam 310, thereby improving the sealing performance of the battery device 10.

[0125] In some embodiments, please refer to Figure 4 The frame 220 further includes a second side beam 222, and the housing 200 further includes a support beam 224 disposed on the base plate 210; the first side beam 221, the base beam 310, the support beam 224, and the second side beam 222 are arranged sequentially at intervals along a first direction; a first region 203a is provided between the first side beam 221 and the base beam 310, a second region 203b is provided between the base beam 310 and the support beam 224, and a third region 203c is provided between the support beam 224 and the second side beam 222; the number of battery cells 100 is multiple, some of the battery cells 100 are installed in the first region 203a, and some of the battery cells 100 are installed in the third region 203c; the second region 203b is used to install an electronic control device; in the first direction, the length of the first region 203a is less than the length of the third region 203c.

[0126] As mentioned above, taking the rectangular shape of the frame 220 as an example, the frame 220 includes multiple side beams, where the side beams generally refer to the parts of the box 200 that serve as the outer supporting structure. The aforementioned first side beam 221 may be one of these side beams, and in this embodiment, the first side beam 221 serves as a positional reference.

[0127] In one example, such as Figure 4 As shown, among the multiple side beams, the second side beam 222 is opposite to and spaced apart from the first side beam 221, and the third side beam 223 is connected between the first side beam 221 and the second side beam 222. In this embodiment, there is one first side beam 221 and one second side beam 222, and there are two third side beams 223. The two third side beams 223 are also opposite to and spaced apart. The length of the first side beam 221 is less than the length of the third side beam 223.

[0128] The electronic control device is the control unit of the battery device 10. Its full name is Battery Management System (BMS). It integrates hardware and software algorithms to monitor and intelligently manage the charging and discharging process, thermal state, safety performance and energy efficiency of the battery device 10 in real time. It is equivalent to the "brain" and "safety guardian" of the battery device 10.

[0129] The first region 203a, the second region 203b, and the third region 203c refer to the different installation areas divided within the receiving slot 203. The first region 203a and the third region 203c are used to install battery cells 100, while the second region 203b is used for the electronic control device, which refers to the hardware part of the electronic control device.

[0130] In the first direction, the length of the first region 203a is less than the length of the third region 203c. Generally, the length difference between the first region 203a and the third region 203c is a multiple of the length or width of the battery cell 100. For example, based on the premise that the battery cells 100 are arranged in the same direction, in the first direction, one battery cell 100 can be installed in the first region 203a, while two, three, four or five battery cells 100 can be installed in the third region 203c.

[0131] Thus, in this embodiment, because the length of the first region 203a is relatively small, and the number of battery cells 100 that can be accommodated within the first region 203a is also relatively small, the buffer structure between the battery cells 100 cannot provide the compression required for the battery cells 100 to be placed into the box, making it difficult for the battery cells 100 to be placed into the box. The setting of the second region 203b provides installation space for the electronic control device and reduces the impact of adding the adjustment component 300 on the installation area of ​​other battery cells 100.

[0132] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery device, characterized in that, include: The box has a base plate and a frame disposed on the base plate, the base plate and the frame defining a receiving groove with an opening on one side, and the frame having a first side beam; An adjustment assembly is disposed within the receiving groove; the adjustment assembly includes a base beam and an adjustment component, the base beam is disposed on the bottom plate and is positioned opposite and spaced apart from the first side beam; as well as A single battery cell is installed in the receiving slot through the opening and is located between the base beam and the first side beam; The adjusting member has multiple mounting positions on the base beam, and the multiple mounting positions are arranged sequentially from the base beam to the first side beam. After the adjusting member is installed at the corresponding mounting position, the battery cell is confined between the adjusting member and the first side beam.

2. The battery device as claimed in claim 1, characterized in that, The adjusting component includes a connecting beam and a plug plate disposed on the connecting beam. The connecting beam is disposed on the side of the base beam opposite to the bottom plate. After the connecting beam is installed in the corresponding mounting position, the plug plate is inserted between the battery cell and the base beam, and the plug plate abuts against the battery cell.

3. The battery device as claimed in claim 2, characterized in that, The base beam has a first mounting hole on the side facing away from the bottom plate, and the connecting beam has a second mounting hole; the adjustment assembly includes a first fastener, which is sequentially inserted through the second mounting hole and the first mounting hole; The opening area of ​​the second mounting hole is different from that of the first mounting hole, so that the adjusting member has multiple mounting positions on the base beam.

4. The battery device as claimed in claim 3, characterized in that, The first fastener includes a connecting rod and a limiting part disposed on the connecting rod. The limiting part abuts against the connecting beam. The connecting rod passes through the second mounting hole and the first mounting hole in sequence. The connecting rod is threadedly connected to the base beam in the first mounting hole. The length of the second mounting hole from the base beam to the first side beam is greater than the diameter of the first mounting hole, so that the adjusting member has multiple mounting positions on the base beam.

5. The battery device as claimed in claim 4, characterized in that, The base beam includes a base body and a first nut seat. The base body has a cavity with a first mounting opening. The first nut seat passes through the base body and is partially disposed within the cavity. The first mounting hole is formed in the first nut seat, and the connecting rod is threadedly connected to the first nut seat in the first mounting hole.

6. The battery device according to any one of claims 2 to 5, characterized in that, The adjusting component also includes a reinforcing plate disposed on the connecting beam, the reinforcing plate and the plug-in plate being located on opposite sides of the base beam respectively; A connecting adhesive layer is provided between the connecting beam and the base beam, and / or a connecting adhesive layer is provided between the reinforcing plate and the base beam.

7. The battery device as claimed in claim 6, characterized in that, The reinforcing plate includes a first reinforcing part and a second reinforcing part that are connected to each other and arranged at an angle. The first reinforcing part is connected to the connecting beam, and the second reinforcing part is located on the side of the first reinforcing part that is away from the connecting beam. The base beam has a first transverse step surface corresponding to the connecting beam, a vertical step surface corresponding to the first reinforcement part, and a second transverse step surface corresponding to the second reinforcement part. The base beam is provided with the connecting adhesive layer between itself and the adjusting member at three locations: the first horizontal step surface, the vertical step surface, and the second horizontal step surface.

8. The battery device as claimed in claim 6 or 7, characterized in that, A reinforcing rib is provided between the connecting beam and the base beam, and / or a reinforcing rib is provided between the reinforcing plate and the base beam.

9. The battery device as claimed in claim 8, characterized in that, The reinforcing rib is disposed between the second transverse step and the second reinforced part, and the reinforcing rib extends along the length direction of the base beam.

10. The battery device as claimed in claim 9, characterized in that, The number of reinforcing ribs is multiple, and the multiple reinforcing ribs are arranged at intervals from the base beam to the first side beam.

11. The battery device according to any one of claims 1 to 10, characterized in that, The base plate is provided with a third mounting hole; The base beam includes a base body and a second nut seat. The base body has a cavity with a second mounting port. The second nut seat passes through the base body and is partially disposed in the cavity. The second nut seat has a fourth mounting hole. The adjustment assembly includes a second fastener, which is sequentially inserted into the third mounting hole and the fourth mounting hole, and the second fastener and the second nut are threadedly connected in the fourth mounting hole.

12. The battery device as claimed in claim 11, characterized in that, The enclosure also includes a bottom protective plate, which is located on the side of the bottom plate away from the base beam; The bottom protective plate is provided with a mounting groove, which communicates with the third mounting hole, and part of the second fastener is provided in the mounting groove.

13. The battery device according to any one of claims 1 to 12, characterized in that, The frame also includes a second side beam, and the box body also includes a support beam disposed on the bottom plate; the first side beam, the base beam, the support beam and the second side beam are arranged in sequence at intervals along the first direction; A first region is provided between the first side beam and the base beam, a second region is provided between the base beam and the support beam, and a third region is provided between the support beam and the second side beam; The number of battery cells is multiple, with some battery cells installed in the first region and some battery cells installed in the third region; the second region is used to install the electronic control device; In the first direction, the length of the first region is less than the length of the third region.

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

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