Energy storage apparatus, cabinet body of energy storage apparatus, assembly method, and charging system

Abstract

The present application relates to the technical field of energy storage apparatuses, and provides an energy storage apparatus, a cabinet body of an energy storage apparatus, an assembly method, and a charging system. The energy storage apparatus comprises: a housing, in which columns are arranged, the columns extending in the height direction of the housing, and being connected to a top wall and a bottom wall of the housing, respectively; a plurality of columns of battery devices, arranged in the housing; first longitudinal beams, extending in the height direction of the housing and located on one side of the columns in the width direction of the housing; and a plurality of first brackets, arranged at intervals in the height direction of the housing and all connected to the first longitudinal beams, each first bracket extending in the width direction of the housing and being configured to support a battery device. By means of the technical solution of the present application, the space utilization rate in the housing of the energy storage apparatus can be improved, thereby improving the energy density of the energy storage apparatus.

Description

Energy storage device, cabinet of energy storage device, assembling method and charging system

[0001] Cross-reference to Related Applications

[0002] This application claims priority to Chinese Patent Application No. 202411124432.3, filed on August 15, 2024, entitled “Energy storage device, cabinet of energy storage device, assembling method and charging system”, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of energy storage devices, and in particular to an energy storage device, a cabinet of an energy storage device, an assembling method and a charging system. BACKGROUND

[0004] Due to the widespread demand for clean energy in the market, energy storage devices have been widely used. However, the market requires energy storage devices to have high capacity to meet sufficient energy storage needs. Therefore, how to improve the energy density of the energy storage device has become a problem to be solved. SUMMARY

[0005] In view of the above problems, the purpose of the present application is to provide an energy storage device, a cabinet of an energy storage device, an assembling method and a charging system to improve the space utilization in the energy storage device and to improve the energy density of the energy storage device. The purpose is achieved by the following technical solutions:

[0006] In a first aspect, the present application provides an energy storage device, comprising: a cabinet, a stand column is arranged in the cabinet, the stand column extends along the height direction of the cabinet and is connected with the top wall and the bottom wall of the cabinet respectively; a plurality of battery devices arranged in the cabinet; a first longitudinal beam, the first longitudinal beam extends along the height direction of the cabinet and is located on one side of the stand column along the width direction of the cabinet, and the first longitudinal beam is connected with the stand column and / or the cabinet; a first bracket, the first bracket extends along the width direction of the cabinet and is connected with the first longitudinal beam, and is used for supporting the battery devices.

[0007] According to the energy storage device provided by the present application, by arranging the first longitudinal beam on one side of the stand column along the width direction of the cabinet, the first longitudinal beam and the stand column share the space in the cabinet along the length direction of the cabinet, and the first bracket connected to the first longitudinal beam is used for supporting the battery devices, so as to reduce the overall occupied space of the first longitudinal beam and the first bracket along the length direction of the cabinet after assembly, so as to make more space in the cabinet for the battery devices to be stored, thereby improving the energy density of the energy storage device.

[0008] In addition, the energy storage device provided by the present application can also have the following additional technical features:

[0009] In some embodiments of the present application, a projection of the first longitudinal beam on the upright along the width direction of the box is located in the upright.

[0010] In the above technical solution, the length direction, the width direction and the height direction of the box are all intersected with each other. The projection of the first longitudinal beam on the upright along the width direction of the box is located in the upright, that is, along the length direction of the box, the first longitudinal beam does not exceed the upright, thereby not occupying the space in the width direction of the box, which is beneficial to load more battery devices in the box, and further helps to improve the energy density of the energy storage device.

[0011] In some embodiments of the present application, the number of battery devices is multiple columns, each column of battery devices includes multiple battery devices; the number of first brackets is multiple, multiple first brackets are arranged at intervals along the height direction of the box, and multiple first brackets are used to support multiple battery devices, respectively.

[0012] In the above technical solution, multiple first brackets are arranged at intervals along the height direction of the box and correspond to support multiple battery devices in each column, thereby facilitating the taking and placing of battery devices and helping to improve the stability of supporting multiple battery monomers.

[0013] In some embodiments of the present application, the number of uprights is multiple, the number of first longitudinal beams is multiple, multiple uprights and multiple first longitudinal beams are arranged at intervals along the width direction of the box, and each first bracket is connected with multiple first longitudinal beams.

[0014] In the above technical solution, the number of uprights is increased, thereby improving the stability of supporting the box. At the same time, the number of first longitudinal beams is increased, and each first bracket is connected with multiple first longitudinal beams arranged along the width direction of the box, so as to increase the number of connection points of the first bracket, thereby helping to improve the reliability and stability of the connection of the first bracket.

[0015] In some embodiments of the present application, the energy storage device further comprises multiple first connecting members, each first connecting member is fixedly connected with one first longitudinal beam and one upright, respectively.

[0016] In the above technical solution, each first longitudinal beam is fixedly connected with one upright arranged adjacent thereto by one first connecting member, such as welding connection or bolt connection, thereby the stability of the installation and fixation of the first longitudinal beam in the box can be improved, and further the stability of the installation and fixation of the first bracket and the stability of supporting the battery device can be improved.

[0017] In some embodiments of the present application, the energy storage device further comprises a first locking member and a second locking member, and the first connecting member is fixedly connected with the first longitudinal beam and the upright column through the first locking member and the second locking member respectively.

[0018] In the above technical solution, the first locking member and the second locking member can be bolts or rivets, and the first connecting member, the first longitudinal beam and the upright column can all be provided with connecting holes, so that the first connecting member can be fixedly connected with the first longitudinal beam and the upright column through the first locking member and the second locking member respectively, which not only facilitates installation and disassembly, but also has a relatively simple structure and principle and is easy to implement.

[0019] In some embodiments of the present application, a plurality of first connecting members are correspondingly arranged at the bottom of a plurality of first brackets and are fixedly connected with the plurality of first brackets respectively.

[0020] In the above technical solution, the bottom of each first bracket is supported and connected through a first connecting member, and the first connecting member is connected with the upright column and the first longitudinal beam, so as to further improve the reliability and stability of the connection of the first bracket, and thus the stability of the support of the battery device by the first bracket can be improved.

[0021] In some embodiments of the present application, the energy storage device further comprises a second longitudinal beam extending along the height direction of the box body and located on one side of the upright column along the width direction of the box body, and the second longitudinal beam is stacked with the first longitudinal beam along the length direction of the box body; a plurality of second brackets are spaced apart along the height direction of the box body and are all connected with the second longitudinal beam, and the plurality of second brackets and the plurality of first brackets are respectively located on both sides of the upright column along the length direction of the box body, each second bracket extends along the width direction of the box body and is used for supporting the battery device.

[0022] In the above technical solution, the plurality of second brackets are used for supporting a plurality of battery devices arranged in another row, the second longitudinal beam is also located on one side of the upright column along the width direction of the box body and is stacked with the first longitudinal beam along the length direction of the box body, so that the second longitudinal beam shares the space along the length direction of the box body with the first longitudinal beam and the upright column, thereby reducing the occupied space of the second longitudinal beam along the length direction of the box body in the box body and reducing the occupied space of the second bracket along the length direction of the box body in the box body, so that more space in the box body can be used for storing the battery device, and thus the energy density of the energy storage device can be improved.

[0023] In some embodiments of the present application, along the width direction of the box body, the projection of the first longitudinal beam and the second longitudinal beam stacked on the upright column is located in the upright column.

[0024] In the technical solution, when the first longitudinal beam and the second longitudinal beam are arranged in a stacking manner along the length direction of the box body, the first longitudinal beam and the second longitudinal beam do not exceed the column in the length direction of the box body, so that the first longitudinal beam and the second longitudinal beam do not occupy the space in the length direction of the box body, thereby enabling the box body to have more space for storing the battery device.

[0025] In some embodiments of the present application, the energy storage device further comprises a plurality of second connecting members, each of which is fixedly connected with the second longitudinal beam and the column.

[0026] In the technical solution, each second longitudinal beam is fixedly connected with an adjacent column through a second connecting member, for example, a welding connection or a bolt connection, thereby improving the stability of the installation of the second longitudinal beam in the box body, and further improving the stability of the installation of the second bracket and the stability of the support of the battery device.

[0027] In some embodiments of the present application, the plurality of second connecting members are arranged at the bottom of the plurality of second brackets and are fixedly connected with the plurality of second brackets, respectively.

[0028] In the technical solution, the bottom of each second bracket is supported and connected through a second connecting member, and the second connecting member is connected with the column and the second longitudinal beam, thereby further improving the reliability and stability of the connection of the second bracket, and further improving the stability of the support of the battery device by the second bracket.

[0029] In some embodiments of the present application, the second connecting member is configured to be fixedly connected with the second longitudinal beam and the column through the first locking member and the second locking member together with the first connecting member.

[0030] In the technical solution, one first connecting member and one second connecting member share a set of first locking members and second locking members, which helps to reduce the number of parts for assembling the product, thereby reducing the cost and facilitating the installation and disassembly.

[0031] In some embodiments of the present application, the column is provided with a cavity, and the cavity penetrates through both ends of the column along the height direction of the box body.

[0032] In the technical solution, the cavity is arranged in the column, thereby reducing the weight of the column, reducing the overall weight of the product, and helping to reduce the production cost of the product.

[0033] In some embodiments of the present application, the cavity is provided with a reinforcing member, the reinforcing member extends along the height direction of the box body, and the reinforcing member is connected with the inner wall of the column on both sides along the length direction of the box body.

[0034] In the technical solution, the reinforcing member is arranged in the cavity of the column, and the reinforcing member is connected with the two opposite inner wall surfaces of the column along the length direction of the box body, so that the structural strength of the column can be strengthened, and the risk of damage of the column due to large stress when the column is locked by the first locking member or the second locking member can be reduced.

[0035] In a second aspect, the application provides a cabinet of an energy storage device, comprising: a box body, a column is arranged in the box body, the column extends along the height direction of the box body, and is connected with the top wall and the bottom wall of the box body; a first longitudinal beam, the first longitudinal beam extends along the height direction of the box body, and is located on one side of the column along the width direction of the box body; a plurality of first brackets, the plurality of first brackets are arranged at intervals along the height direction of the box body, and are connected with the first longitudinal beam, each first bracket extends along the width direction of the box body, and is used for supporting a battery device.

[0036] In a third aspect, the application provides an assembly method of an energy storage device, comprising: providing a box body, a column is arranged in the box body, the column extends along the height direction of the box body, and is connected with the top wall and the bottom wall of the box body; providing a first longitudinal beam and a plurality of first brackets, connecting the plurality of first brackets to the first longitudinal beam to form an assembly body, placing the assembly body in the box body, and making the first brackets located on one side of the column along the width direction of the box body; providing a first connecting member, connecting the first longitudinal beam of the assembly body and the column by using the first connecting member; providing a battery device, and placing the battery device on the first brackets; wherein the first longitudinal beam extends along the height direction of the box body, the plurality of first brackets are arranged at intervals along the height direction of the box body, and are connected with the first longitudinal beam, and each first bracket extends along the width direction of the box body.

[0037] In a fourth aspect, the application provides a charging system, comprising the energy storage device according to any one of the first aspect embodiments, and the energy storage device is used for charging a power consumption device; or comprising the cabinet of the energy storage device according to the second aspect embodiment. BRIEF DESCRIPTION OF DRAWINGS

[0038] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The detailed description is made with reference to the accompanying drawings.

[0039] FIG. 1 is a structural schematic diagram of an energy storage device according to some embodiments of the application;

[0040] Fig. 2 is an exploded structural schematic diagram of a battery device according to some embodiments of the present application;

[0041] Fig. 3 is an exploded structural schematic diagram of a battery cell according to some embodiments of the present application;

[0042] Fig. 4 is a structural schematic diagram of a column, a first longitudinal beam, a first bracket and a first connecting piece before assembly according to some embodiments of the present application;

[0043] Fig. 5 is a structural schematic diagram of a first bracket and a first longitudinal beam after assembly and a second bracket and a second longitudinal beam after assembly, but before assembly with a column according to some embodiments of the present application;

[0044] Fig. 6 is a top view structural schematic diagram of a column, a first longitudinal beam, a second longitudinal beam, a first bracket and a second bracket after assembly according to some embodiments of the present application;

[0045] Fig. 7 is a sectional view structural schematic diagram of the partial components in A-A direction of Fig. 6;

[0046] Fig. 8 is an enlarged structural schematic diagram of part B of Fig. 7.

[0047] The reference signs are as follows: 1000, energy storage device; 100, battery device; 200, battery box; 20, column; 21, cavity; 22, reinforcing piece; 31, first longitudinal beam; 32, first bracket; 33, first connecting piece; 331, first connecting plate; 332, first end plate; 41, second longitudinal beam; 42, second bracket; 43, second connecting piece; 50, first locking piece; 51, bolt; 52, nut; 60, second locking piece; 110, battery box; 111, first part; 112, second part; 120, battery cell; 121, end cover; 122, electrode terminal; 123, pressure relief mechanism; 124, box body; 125, electrode assembly; 126, tab. DETAILED DESCRIPTION

[0048] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, but cannot limit the protection scope of the present application.

[0049] 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 belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0050] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise explicitly specified and limited.

[0051] Reference herein to "embodiments" means that the particular features, structures, or characteristics described in connection with the embodiments can 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 all refer to the same embodiment, nor is it necessarily a separate or alternative embodiment to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0052] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can mean: A exists, A and B exist, and B exists. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after it.

[0053] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two), and similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0054] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0055] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0056] At present, with the rapid development of battery device energy storage, various types of energy storage devices, such as energy storage cabinets, energy storage containers and the like, are widely used in industrial sites, power grids, new energy power generation and the like.

[0057] For a general energy storage device, the energy storage device includes a cabinet, and a plurality of columns and a battery device bracket are usually arranged in the cabinet, and the battery device bracket is used to support the battery device. The plurality of columns constitute the frame of the cabinet, and the longitudinal beam of the battery device bracket is welded to the side of the column facing the battery device, which causes the battery device bracket to occupy a large battery device accommodation space, thereby affecting the energy density of the energy storage device.

[0058] In order to solve the problem that the battery device bracket occupies a large battery device accommodation space in the cabinet, thereby reducing the energy density of the energy storage device, the present application designs an energy storage device, which includes a cabinet, the cabinet is provided with a column, the column extends along the height direction of the cabinet and is connected with the top wall and the bottom wall of the cabinet, and the cabinet is further provided with a first longitudinal beam, a plurality of first brackets and a battery device. The first bracket is used to support the battery device, the first longitudinal beam is arranged on one side of the column along the width direction of the cabinet and extends along the height direction of the cabinet, and the first bracket extends along the width direction of the cabinet and is connected with the first longitudinal beam. By arranging the first longitudinal beam on one side of the column along the width direction of the cabinet, the first longitudinal beam and the column share the space in the cabinet along the length direction of the cabinet perpendicular to the width direction of the cabinet and the height direction of the cabinet, so that the occupied space of the first longitudinal beam and the first bracket as a whole along the length direction of the cabinet in the cabinet can be reduced, so that more space in the cabinet is provided for the storage of the battery device, thereby improving the energy density of the energy storage device.

[0059] The energy storage device disclosed in the embodiments of the present application is used to store energy, for example, a device that needs to use electric energy needs an energy storage device.

[0060] Please refer to FIG. 1, which is a structural schematic diagram of an energy storage device provided by some embodiments of the present application. The energy storage device 1000 can include a cabinet and one or more battery clusters, and the battery clusters are contained in the cabinet.

[0061] The battery cluster can include a plurality of battery devices 200, and the plurality of battery devices 200 are connected in series through a busbar component to improve the voltage of the energy storage device 1000. When the energy storage device 1000 includes a plurality of battery clusters, the plurality of battery clusters are connected in parallel to improve the capacity of the energy storage device 1000.

[0062] The energy storage device 1000 can be used in an energy storage power station, a wind power system, a solar power system, a mobile power system, or a temporary power supply system, etc. The energy storage device 1000 can store electric energy as needed and output the electric energy at an appropriate time. For example, the energy storage device 1000 can store electric energy at a low electricity consumption valley, and provide electric energy for relevant users or electric equipment at a high electricity consumption peak. The energy storage system provided by the embodiments of the present application can be any power system that needs to use an energy storage device.

[0063] According to some embodiments of the present application, the energy storage device is an energy storage container or an energy storage cabinet.

[0064] Please refer to FIG. 2, which is an exploded view of a battery device according to some embodiments of the present application. The battery device 100 includes a battery box 110 and battery cells 120, which are accommodated in the battery box 110. The battery box 110 is configured to provide a space for accommodating the battery cells 120, and can have various structures. In some embodiments, the battery box 110 can include a first part 111 and a second part 112, which are coupled to each other to define a space for accommodating the battery cells 120. Optionally, to ensure a sealing effect, the first part 111 and the second part 112 are provided with flanges at the edges. The second part 112 can be a hollow structure with one open end, and the first part 111 can be a plate structure, which is coupled to the open end of the second part 112 to define the space for accommodating the battery cells 120. Alternatively, the first part 111 and the second part 112 can both be hollow structures with one open end, and the open end of the first part 111 is coupled to the open end of the second part 112. Of course, the battery box 110 formed by the first part 111 and the second part 112 can have various shapes, such as a cylinder, a cuboid, etc. In the battery device 100, the battery cells 120 can be multiple, and the multiple battery cells 120 can be connected in series, in parallel, or in a mixed manner. The mixed manner means that the multiple battery cells 120 are connected in series and in parallel. The multiple battery cells 120 can be directly connected in series, in parallel, or in a mixed manner, and then the multiple battery cells 120 are accommodated in the battery box 110. Alternatively, the multiple battery cells 120 can be connected in series, in parallel, or in a mixed manner to form a battery device module, and then multiple battery device modules are connected in series, in parallel, or in a mixed manner to form a whole, which is accommodated in the battery box 110. The battery device 100 can further include other structures, for example, the battery device 100 can further include a current collecting component for electrically connecting the multiple battery cells 120. The battery cells 120 can be secondary battery devices or primary battery devices, and can be lithium-sulfur battery devices, sodium-ion battery devices, or magnesium-ion battery devices, but are not limited thereto. The battery cells 120 can have various shapes, such as a cylinder, a flat body, a cuboid, or other shapes.

[0065] FIG. 3 is a schematic diagram of an exploded structure of a battery cell according to some embodiments of the present application. The battery cell 120 refers to the smallest unit that constitutes the battery device 100. As shown in FIG. 3, the battery cell 120 includes an end cover 121, a shell 124, and an electrode assembly 125. The end cover 121 refers to a component that covers the opening of the shell 124 to isolate the internal environment of the battery cell 120 from the external environment. The shape of the end cover 121 can be adapted to the shape of the shell 124 to fit the shell 124. Optionally, the end cover 121 can be made of a material with certain hardness and strength (e.g., aluminum alloy), so that the end cover 121 is less likely to deform when subjected to extrusion and collision, and the battery cell 120 can have higher structural strength and improved safety performance. The end cover 121 can be provided with functional components such as electrode terminals 122. The electrode terminals 122 can be used to electrically connect with the electrode assembly 125 for outputting or inputting the electrical energy of the battery cell 120. In some embodiments, the end cover 121 can also be provided with a pressure relief mechanism 123 for releasing the internal pressure when the internal pressure or temperature of the battery cell 120 reaches a threshold value. In some embodiments, an insulating member can also be provided on the inner side of the end cover 121, which can be used to isolate the electrical connection components in the shell 124 from the end cover 121 to reduce the risk of short circuit. For example, the insulating member can be made of plastic, rubber, or the like. The shell 124 is a component used to fit the end cover 121 to form the internal environment of the battery cell 120, which can be used to accommodate the electrode assembly 125, electrolyte (not shown in the figure), and other components. The shell 124 and the end cover 121 can be independent components, and an opening can be provided on the shell 124, and the end cover 121 is used to cover the opening to form the internal environment of the battery cell 120. Alternatively, the end cover 121 and the shell 124 can be integrated, specifically, the end cover 121 and the shell 124 can form a common connecting surface before other components enter the shell, and the end cover 121 is used to cover the shell 124 when it is necessary to seal the internal environment of the shell 124. The shell 124 can have various shapes and sizes, such as a cuboid, a cylinder, a hexagonal prism, etc. Specifically, the shape of the shell 124 can be determined according to the specific shape and size of the electrode assembly 125. The shell 124 can be made of various materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiments of the present application do not make special limitations on this. The electrode assembly 125 is a component in which electrochemical reactions occur in the battery cell 120. The shell 124 can contain one or more electrode assemblies 125. The electrode assembly 125 is mainly formed by winding or stacking positive and negative electrode sheets, and a separator is usually provided between the positive and negative electrode sheets. The positive and negative electrode sheets have portions with active materials that constitute the main body of the electrode assembly 125, and the portions of the positive and negative electrode sheets without active materials each constitute a tab 126. The positive and negative tabs can be located at one end of the main body or at two ends of the main body, respectively.During the charging and discharging process of the battery device 100, the positive active material and the negative active material react with the electrolyte, and the tab 126 connects the electrode terminal 122 to form a current loop.

[0066] Please refer to FIG. 4, which is a structural schematic diagram of the column, the first longitudinal beam, the first bracket and the first connecting piece before assembly according to some embodiments of the present application. The embodiments of the present application provide an energy storage device 200, which comprises a box body 200, a first longitudinal beam 31, a first bracket 32 and a plurality of battery devices 100. The box body 200 is provided with a column 20 extending along the height direction of the box body 200 and connected with the top wall and the bottom wall of the box body 200 respectively; the plurality of battery devices 100 are arranged in the box body 200; the first longitudinal beam 31 extends along the height direction of the box body 200 and is located on one side of the column 20 along the width direction of the box body 200, and the first longitudinal beam 31 is connected with the column 20 and / or the box body 200; the first bracket 32 extends along the width direction of the box body 200 and is connected with the first longitudinal beam 31, and is used for supporting the battery device 100.

[0067] Referring to FIG. 1, exemplarily, the box body 200 is a cuboid structure, and the height direction of the box body 200 is the height direction of the energy storage device when it is placed in the manner shown in FIG. 1, that is, the Z direction. Each column of battery devices 100 is arranged in the box body 200 from top to bottom, and a plurality of columns of battery devices 100 are arranged along the length direction of the box body 200. The width direction of the box body 200 is the mounting direction of the battery device 100, that is, the X direction. The length direction of the box body 200 is the Y direction perpendicular to the height direction and the width direction of the box body 200. The length direction, the width direction and the height direction of the box body 200 intersect with each other.

[0068] Exemplarily, the number of columns 20 is a plurality, and the plurality of columns 20 can serve as the support framework of the box body 200, and play a role in supporting the box body 200. The material of the column 20 can be a metal material such as steel, aluminum alloy, for example, a stainless steel pipe or an aluminum alloy plate, so that the support strength is high.

[0069] The first longitudinal beam 31 plays a role in supporting and connecting the first bracket 32, and can be a profiled beam. Exemplarily, the two ends of the first longitudinal beam 31 are also connected with the bottom wall and the top wall of the box body 200.

[0070] The first bracket 32 plays a role in positioning and supporting the battery device 100.

[0071] Exemplarily, the first bracket 32 comprises a first support plate and a first limiting plate. The first support plate is arranged along the horizontal direction. The first limiting plate is arranged on the side of the first support plate close to the first longitudinal beam 31 and is arranged at an angle with the first support plate, for example, the first limiting plate is arranged at a right angle with the first support plate, so as to reduce the length direction occupation space of the first limiting plate energy storage device. When the battery device 100 is installed, the first limiting plate plays a role of limiting the battery device 100, so as to facilitate the quick installation of the battery device 100 according to the installation direction thereof.

[0072] It can be understood that when the plurality of columns 20 are arranged at intervals along the width direction of the box body 200, the battery device 100 is installed on the first bracket 32 along the width direction of the box body 200, and the space between the plurality of columns 20 along the width direction of the box body 200 cannot be used for installing the battery device 100, resulting in a certain degree of waste of the space. Therefore, the first longitudinal beam 31 is arranged on one side of the column 20 along the width direction of the box body 200, so that the first longitudinal beam 31 shares the length direction space of the box body 200 with the column 20, thereby reducing the length direction occupation space of the first longitudinal beam 31 and the first bracket 32 in the box body 200, so as to make more space in the box body 200 for storing the battery device 100, thereby improving the energy density of the energy storage device.

[0073] According to some embodiments of the present application, along the width direction of the box body 200, the projection of the first longitudinal beam 31 on the column 20 is located in the column 20.

[0074] That is, along the length direction of the box body 200, the first longitudinal beam 31 does not exceed the column, thereby not occupying the width direction space of the box body 200, which is beneficial to loading more battery devices 100 in the box body 200, thereby helping to improve the energy density of the energy storage device.

[0075] According to some embodiments of the present application, the number of battery devices 100 is multiple columns, each column of battery devices 100 comprises a plurality of battery devices; the number of first brackets 32 is multiple, and the plurality of first brackets 32 are arranged at intervals along the height direction of the box body 200, and the plurality of first brackets 32 are respectively used for supporting the plurality of battery devices 200.

[0076] The plurality of first brackets are arranged at intervals along the height direction of the box body and correspondingly support the plurality of battery devices of each column, thereby facilitating the taking and placing of the battery devices and helping to improve the stability of supporting the plurality of battery monomers.

[0077] Please refer to FIG. 4, according to some embodiments of the present application, the number of columns 20 is multiple, the number of first longitudinal beams 31 is multiple, the plurality of columns 20 and the plurality of first longitudinal beams 31 are arranged at intervals along the width direction of the box body 200, and each first bracket 32 is connected with the plurality of first longitudinal beams 31.

[0078] The number of the columns 20 is increased, thereby improving the stability of supporting the box 200, and the number of the first longitudinal beams 31 is increased, each first bracket 32 is connected with a plurality of first longitudinal beams 31 arranged along the width direction of the box 200, so as to increase the number of the connection points of the first bracket 32, thereby helping to improve the reliability and stability of the connection of the first bracket 32.

[0079] Referring to FIG. 4, according to some embodiments of the present application, the energy storage device further comprises a plurality of first connecting pieces 33, each of which is fixedly connected with a first longitudinal beam 31 and a column 20.

[0080] The first connecting piece 33 can be fixedly connected with the column 20 and the first longitudinal beam 31 by welding, riveting or bolt 51 connection and the like.

[0081] Each first longitudinal beam 31 is fixedly connected with an adjacent column 20 through a first connecting piece 33, thereby improving the stability of the installation of the first longitudinal beam 31 in the box 200, and further improving the stability of the installation of the first bracket 32 and the stability of supporting the battery device 100.

[0082] Referring to FIG. 4, according to some embodiments of the present application, the energy storage device further comprises a first locking piece 50 and a second locking piece 60, and the first connecting piece 33 is fixedly connected with the first longitudinal beam 31 and the column 20 through the first locking piece 50 and the second locking piece 60.

[0083] Exemplarily, the first locking piece 50 and the second locking piece 60 can be a bolt 51 or a rivet.

[0084] Specifically, the first connecting piece 33 is provided with a first connecting hole and a second connecting hole, the column 20 and the first longitudinal beam 31 are respectively provided with a third connecting hole and a fourth connecting hole, the first locking piece 50 passes through the first connecting hole and the third connecting hole and locks the column 20 and the first connecting piece 33, and the second locking piece 60 passes through the second connecting hole and the fourth connecting hole and locks the first longitudinal beam 31 and the first connecting piece 33, thereby enabling the first connecting piece 33 to be fixedly connected with the column 20 and the first longitudinal beam 31 through the first locking piece 50 and the second locking piece 60, which is not only convenient for installation and disassembly, but also simple in structure and principle and easy to realize.

[0085] According to some embodiments of the present application, a plurality of first connecting pieces 33 are arranged at the bottom of a plurality of first brackets 32 and are fixedly connected with the plurality of first brackets 32.

[0086] Exemplarily, the first connecting piece 33 comprises a first connecting plate 331 connected to the stand column 20 and the first longitudinal beam 31, and the first connecting plate 331 is provided with a first end plate 332 at at least one end in the width direction of the box body 200, the first end plate 332 is arranged at an angle with the first connecting plate 331, and the top end surface of the first end plate 332 abuts or is welded with the bottom of the first bracket 32.

[0087] The bottom of each first bracket 32 is supported and connected by the first connecting piece 33 connected with the stand column 20 and the first longitudinal beam 31, so as to further improve the reliability and stability of the connection of the first bracket 32, and further improve the stability of the first bracket 32 supporting the battery device 100.

[0088] Please refer to FIG. 5 and FIG. 6, FIG. 5 is a structure schematic diagram provided by some embodiments of the present application, which shows the first bracket and the first longitudinal beam after assembly, and the second bracket and the second longitudinal beam after assembly, but before assembly with the stand column;

[0089] FIG. 6 is a top view structure schematic diagram of the stand column and the first longitudinal beam, the second longitudinal beam, the first bracket and the second bracket after assembly. According to some embodiments of the present application, the energy storage device further comprises a second longitudinal beam 41 and a plurality of second brackets 42. The second longitudinal beam 41 extends along the height direction of the box body 200 and is located on one side of the stand column 20 along the width direction of the box body 200, and the second longitudinal beam 41 is arranged in a stack along the length direction of the box body 200 with the first longitudinal beam 31; the plurality of second brackets 42 are arranged in the height direction of the box body 200 and are connected with the second longitudinal beam 41, and the plurality of second brackets 42 and the plurality of first brackets 32 are respectively located on both sides of the stand column 20 along the length direction of the box body 200, each second bracket 42 extends along the width direction of the box body 200 and is used to support the battery device 100.

[0090] The second longitudinal beam 41 serves to support and connect the second bracket 42, and the second bracket 42 is also a profiled beam. Exemplarily, the two ends of the second longitudinal beam 41 are also connected with the top wall and the bottom wall of the box body 200.

[0091] Exemplarily, the plurality of second brackets 42 and the plurality of first brackets 32 are arranged symmetrically. Exemplarily, the second bracket 42 comprises a second supporting plate arranged in the horizontal direction and a second limiting plate arranged at an angle with the second supporting plate, for example, the second limiting plate is arranged at a right angle with the second supporting plate, so as to reduce the occupied space of the second limiting plate along the length direction of the energy storage device.

[0092] The plurality of second brackets 42 are used to support the plurality of battery devices 100 arranged in another row. The second longitudinal beams 41 are also arranged on one side of the columns 20 along the width direction of the box 200 and are stacked along the length direction of the box 200 with the first longitudinal beams 31. The second longitudinal beams 41 share the space in the box 200 along the length direction of the box 200 with the first longitudinal beams 31 and the columns 20, so that the occupied space of the second longitudinal beams 41 in the box 200 along the length direction of the box 200 can be reduced, and the occupied space of the second brackets 42 in the box 200 along the length direction of the box 200 can be reduced. More space in the box 200 can be used to store the battery devices 100, so that the energy density of the energy storage device can be improved.

[0093] Referring to FIG. 6, according to some embodiments of the present application, the projections of the first longitudinal beams 31 and the second longitudinal beams 41 stacked along the width direction of the box 200 on the columns 20 are located in the columns 20.

[0094] When the first longitudinal beams 31 and the second longitudinal beams 41 are stacked along the length direction of the box 200, the occupied space of the first longitudinal beams 31 and the second longitudinal beams 41 in the box 200 along the length direction of the box 200 is not greater than the occupied space of the columns 20 in the box 200 along the length direction of the box 200. The storage space of the battery devices 100 occupied by the first longitudinal beams 31 and the second longitudinal beams 41 in the box 200 can be further reduced, so that more space in the box 200 can be used to store the battery devices 100.

[0095] Referring to FIG. 5, according to some embodiments of the present application, the energy storage device further comprises a plurality of second connecting members 43. Each second connecting member 43 is fixedly connected with the second longitudinal beam 41 and the column 20, respectively.

[0096] For example, the second connecting member 43 comprises a second connecting plate. The second connecting member 43 can be fixedly connected with the column 20 and the second longitudinal beam 41 by welding, riveting or bolt 51 connection and the like.

[0097] Each second longitudinal beam 41 is fixedly connected with one column 20 arranged adjacent thereto by one second connecting member 43, so that the stability of the installation and fixation of the second longitudinal beams 41 in the box 200 can be improved, and the stability of the installation and fixation of the second brackets 42 and the stability of the support of the battery devices 100 can be improved.

[0098] Referring to FIG. 5, according to some embodiments of the present application, the plurality of second connecting members 43 are arranged at the bottom of the plurality of second brackets 42 and are fixedly connected with the plurality of second brackets 42, respectively.

[0099] Exemplarily, the second connecting member 43 comprises a second connecting plate connected to the upright column 20 and the second longitudinal beam 41, and the second connecting plate is provided with a second end plate at at least one end along the width direction of the box body 200, the second end plate is arranged at an angle with the second connecting plate, and the top end surface of the second end plate abuts or is welded with the bottom of the second bracket 42.

[0100] The bottom of each second bracket 42 is supported and connected by the second connecting member 43 connected with the upright column 20 and the second longitudinal beam 41, so as to further improve the reliability and stability of the connection of the second bracket 42, and further improve the stability of the second bracket 42 supporting the battery device 100.

[0101] Please refer to FIG. 5, according to some embodiments of the present application, the second connecting member 43 is configured to be fixedly connected with the second longitudinal beam 41 and the upright column 20 together with the first connecting member 33 through the first locking member 50 and the second locking member 60.

[0102] Exemplarily, the second connecting member 43 is symmetrically arranged with the first connecting member 33 on both sides of the upright column 20 along the length direction of the box body 200.

[0103] One first connecting member 33 and one second connecting member 43 share a set of first locking members 50 and second locking members 60, which helps to reduce the parts of product assembly, reduces the cost, and facilitates installation and disassembly.

[0104] Specifically, the first locking member 50 and the second locking member 60 each comprise a bolt 51 and a nut 52. The second connecting member 43 is provided with a fifth connecting hole and a sixth connecting hole, and the second longitudinal beam 41 is provided with a seventh connecting hole, the fifth connecting hole is correspondingly arranged with the first connecting hole, and the sixth connecting hole is correspondingly arranged with the second connecting hole, the first locking member 50 passes through the first connecting hole, the third connecting hole and the fifth connecting hole to fixedly connect the first connecting member 33 and the second connecting member 43 with the upright column 20, and the second locking member 60 passes through the second connecting hole, the fourth connecting hole, the seventh connecting hole and the sixth connecting hole to fixedly connect the first connecting member 33 and the second connecting member 43 with the first longitudinal beam 31 and the second longitudinal beam 41.

[0105] Please refer to FIG. 6 to FIG. 8, FIG. 7 is a sectional view of the partial components in A-A direction of FIG. 6; and FIG. 8 is an enlarged view of part B of FIG. 7. According to some embodiments of the present application, the upright column 20 is provided with a cavity 21 penetrating through both ends of the upright column 20 along the height direction of the box body 200.

[0106] By arranging the cavity 21 inside the upright column 20, the weight of the upright column 20 can be reduced, so as to reduce the overall weight of the product and help to reduce the production cost of the product.

[0107] Referring to FIGS. 6-8, according to some embodiments of the present application, the cavity 21 is provided with a reinforcing member 22 extending along the height direction of the cabinet 200, and the reinforcing member 22 is connected to the inner wall of the upright column 20 on both sides along the length direction of the cabinet 200.

[0108] Exemplarily, the reinforcing member 22 is a reinforcing rib or a reinforcing plate, and the first locking member 50 of the upright column 20 is arranged through the reinforcing member 22.

[0109] By arranging the reinforcing member 22 in the cavity 21 of the upright column 20, the reinforcing member 22 is connected to the two oppositely arranged inner walls of the upright column 20 along the length direction of the cabinet 200, thereby playing a role in strengthening the structural strength of the upright column 20 and reducing the risk of damage of the upright column 20 due to large stress when being locked by the first locking member 50 or the second locking member 60.

[0110] According to some embodiments of the present application, the present application further provides a cabinet of an energy storage device, comprising a cabinet 200, a first longitudinal beam 31 and a plurality of first brackets 32. The cabinet 200 is provided with an upright column 20 extending along the height direction of the cabinet 200 and connected to the top wall and the bottom wall of the cabinet 200, respectively. The first longitudinal beam 31 extends along the height direction of the cabinet 200 and is located on one side of the upright column 20 along the width direction of the cabinet 200. The plurality of first brackets 32 are arranged at intervals along the height direction of the cabinet 200 and are connected to the first longitudinal beam 31. Each first bracket 32 extends along the width direction of the cabinet 200 and is used to support a battery device 100.

[0111] According to some embodiments of the present application, the present application further provides an assembly method of an energy storage device, comprising:

[0112] Step one: providing a cabinet, the cabinet is provided with an upright column extending along the height direction of the cabinet and connected to the top wall and the bottom wall of the cabinet;

[0113] Step two: providing a first longitudinal beam and a plurality of first brackets, connecting the plurality of first brackets to the first longitudinal beam to form an assembly, placing the assembly in the cabinet, and locating the first brackets on one side of the upright column along the width direction of the cabinet;

[0114] Step three: providing a first connecting member, and connecting the first longitudinal beam of the assembly and the upright column by using the first connecting member;

[0115] Step four: providing a battery device, and placing the battery device on the first brackets.

[0116] The first longitudinal beam extends along the height direction of the cabinet, the plurality of first brackets are arranged at intervals along the height direction of the cabinet and are connected to the first longitudinal beam, and each first bracket extends along the width direction of the cabinet.

[0117] According to some embodiments of the present application, the present application also provides a charging system, comprising the energy storage device 1000 in any of the above embodiments, the energy storage device 1000 being used to charge an electric device; or a cabinet comprising the energy storage device in the above embodiments.

[0118] The charging system provided by the embodiments of the present application has the technical effects of any of the above embodiments due to comprising the energy storage device 1000 in any of the above embodiments or the cabinet comprising the energy storage device in the above embodiments, and details are not repeated here.

[0119] According to some embodiments of the present application, referring to FIGS. 1, 4, 5 and 6, the present application provides an energy storage device 1000, comprising a cabinet 200, a plurality of first longitudinal beams 31, a second longitudinal beam 41, a first bracket 32, a second bracket 42, a first connecting piece 33, a second connecting piece 43, a battery device 100 and a column 20. The plurality of columns 20 are arranged at intervals along the width direction of the cabinet 200 and extend along the height direction of the cabinet 200, and are connected with the top wall and the bottom wall of the cabinet 200. The first longitudinal beam 31 is arranged on one side of the column 20 along the width direction of the cabinet 200 and extends along the height direction of the cabinet 200. The first bracket 32 extends along the width direction of the cabinet 200 and is connected with the first longitudinal beam 31, and is used to support the battery device 100. The first connecting piece 33 is arranged at the bottom of the first bracket 32 and is connected with the first bracket 32, and the first connecting piece 33 is fixedly connected with the column 20 and the first longitudinal beam 31 through the first locking piece 50 and the second locking piece 60, respectively. The second longitudinal beam 41 is arranged on one side of the column 20 along the width direction of the cabinet 200 and extends along the height direction of the cabinet 200, and the second longitudinal beam 41 is arranged in layers with the first longitudinal beam 31 along the length direction of the cabinet 200, and the projection of the layered second longitudinal beam 41 and the first longitudinal beam 31 along the width direction of the cabinet 200 is located in the column 20. The second bracket 42 is parallel to the first bracket 32 and is located on the side of the second longitudinal beam 41 away from the first longitudinal beam 31, and is also used to support the battery device 100. The second connecting piece 43 is arranged at the bottom of the second bracket 42 and is connected with the second bracket 42. The first connecting piece 33 and the second connecting piece 43 are respectively located on opposite sides of the column 20 along the length direction of the cabinet 200, and the second connecting piece 43 is configured to be fixedly connected with the second longitudinal beam 41 and the column 20 together with the first connecting piece 33 through the first locking piece 50 and the second locking piece 60. The plurality of columns of battery devices 100 are arranged at intervals along the length direction of the cabinet 200. Through the above technical solution, the utilization rate of the internal space of the cabinet 200 can be improved, so that more battery devices 100 can be stored in the cabinet 200, thereby helping to improve the energy density of the energy storage device.

[0120] The above description is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An energy storage device, comprising: a box body, a plurality of vertical columns are arranged in the box body, the vertical columns extend along a height direction of the box body and are connected to a top wall and a bottom wall of the box body respectively; a plurality of battery devices arranged in the box body; a first longitudinal beam extending along the height direction of the box body and located on one side of the vertical columns along a width direction of the box body, and the first longitudinal beam is connected to the vertical columns and / or the box body; a first bracket extending along the width direction of the box body and connected to the first longitudinal beam, for supporting the battery devices.

2. The energy storage device of claim 1, wherein, Along the width direction of the box body, a projection of the first longitudinal beam on the vertical columns is located in the vertical columns.

3. The energy storage device of claim 1 or 2, wherein, The number of the battery devices is a plurality of columns, and each column of the battery devices includes a plurality of battery devices; The number of the first brackets is a plurality, and the plurality of first brackets are arranged at intervals along the height direction of the box body, and the plurality of first brackets are respectively used for supporting the plurality of battery devices.

4. The energy storage device of any one of claims 1-3, wherein, The number of the vertical columns is a plurality, and the number of the first longitudinal beams is a plurality, and the plurality of vertical columns and the plurality of first longitudinal beams are arranged at intervals along the width direction of the box body, and each first bracket is connected to the plurality of first longitudinal beams.

5. The energy storage device of any one of claims 1-4, wherein, The energy storage device further comprises a plurality of first connecting members, each of which is fixedly connected to the first longitudinal beam and the vertical column respectively.

6. The energy storage device of claim 5, wherein, The energy storage device further comprises a first locking member and a second locking member, and the first connecting member is fixedly connected to the first longitudinal beam and the vertical column through the first locking member and the second locking member respectively.

7. The energy storage device of claim 5 or 6, wherein, The plurality of first connecting members are arranged at the bottom of the plurality of first brackets respectively and are fixedly connected to the plurality of first brackets respectively.

8. The energy storage device of any one of claims 3-7, wherein, The energy storage device further comprises: a second longitudinal beam extending along the height direction of the box body and located on one side of the vertical columns along the width direction of the box body, and the second longitudinal beam is arranged in a stack along a length direction of the box body with the first longitudinal beam; a plurality of second brackets, the plurality of second brackets are arranged at intervals along the height direction of the box body and are all connected to the second longitudinal beam, and the plurality of second brackets and the plurality of first brackets are respectively located on both sides of the vertical columns along the length direction of the box body, each second bracket extends along the width direction of the box body for supporting the battery devices.

9. The energy storage device of claim 8, wherein, Along the width direction of the box body, projections of the first longitudinal beam and the second longitudinal beam arranged in a stack on the vertical columns are located in the vertical columns.

10. The energy storage device of claim 8 or 9, wherein, The energy storage device further comprises a plurality of second connecting members, each of which is fixedly connected to the second longitudinal beam and the vertical column respectively.

11. The energy storage device of claim 10, wherein, The plurality of second connecting members are arranged at the bottom of the plurality of second brackets respectively and are fixedly connected to the plurality of second brackets.

12. The energy storage device of claim 10 or 11, wherein, The second connecting member is configured to be fixedly connected to the second longitudinal beam and the vertical column together with the first connecting member through the first locking member and the second locking member.

13. The energy storage device of any one of claims 1-12, wherein, The vertical column is provided with a cavity, and the cavity penetrates through both ends of the vertical column along the height direction of the box body.

14. The energy storage device of claim 13, wherein, The cavity is provided with a reinforcing member extending along the height direction of the cabinet, and the reinforcing member is connected with the inner wall of the column on both sides along the length direction of the cabinet.

15. A cabinet for an energy storage device, comprising: a cabinet having a top wall and a bottom wall; a column extending along the height direction of the cabinet and connected with the top wall and the bottom wall respectively; a first longitudinal beam extending along the height direction of the cabinet and located on one side of the column along the width direction of the cabinet; a plurality of first brackets spaced along the height direction of the cabinet and connected with the first longitudinal beam, each of the first brackets extending along the width direction of the cabinet for supporting a battery device.

16. An assembling method of an energy storage device, comprising: providing a cabinet provided with a column extending along the height direction of the cabinet and connected with the top wall and the bottom wall of the cabinet; providing a first longitudinal beam and a plurality of first brackets, connecting the plurality of first brackets with the first longitudinal beam to form an assembling body, placing the assembling body in the cabinet and locating the first brackets on one side of the column along the width direction of the cabinet; providing a first connecting member for connecting the first longitudinal beam of the assembling body with the column; providing a battery device and placing the battery device on the first brackets; wherein the first longitudinal beam extends along the height direction of the cabinet, the plurality of first brackets are spaced along the height direction of the cabinet and connected with the first longitudinal beam, and each of the first brackets extends along the width direction of the cabinet.

17. A charging system comprising the energy storage device according to any one of claims 1-14 for charging a power consuming device, or the cabinet for the energy storage device according to claim 15.

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