CN116918147A - Energy storage container combined structure and transportation method of energy storage system - Google Patents

Abstract

The embodiment of the application relates to an energy storage container combined structure and a transportation method of an energy storage system, wherein the energy storage container combined structure comprises an energy storage container and a frame assembly, and a battery is contained in the energy storage container; the frame assembly is connected with the energy storage container to form an energy storage container combined structure, and a container corner fitting assembly is arranged on the frame assembly; wherein the size of the energy storage container combination structure is greater than the size of the energy storage container in at least one of the first direction, the second direction, or the third direction; the first direction, the second direction and the third direction are perpendicular to each other. The energy storage container combination structure provided by the embodiment of the application can obviously improve the energy density.

Description

Energy storage container combined structure and transportation method of energy storage system Technical field

The present application relates to the field of battery technology, and in particular to an energy storage container combined structure and a transportation method of an energy storage system.

Background technique

The energy storage system is an electrical energy storage and transfer device with batteries placed inside it. It has the characteristics of easy installation and transportation, high integration, small footprint and good scalability. It is an important part of distributed energy, smart grid and energy Internet in the field of energy storage. important part of development.

The more batteries there are in an energy storage system, the higher its energy density. How to improve the overall energy density of a transportable energy storage system is an urgent problem to be solved.

Contents of the invention

This application provides an energy storage container combined structure and a transportation method of an energy storage system, aiming to improve the energy density of the energy storage system.

In the first aspect, embodiments of the present application propose an energy storage container combined structure. The energy storage container combined structure includes an energy storage container and a frame assembly. The energy storage container houses batteries inside; the frame assembly is connected. The energy storage container is used to form an energy storage container combined structure, and the frame component is provided with a container corner component; wherein, in at least one direction among the first direction, the second direction or the third direction, the size of the energy storage container combined structure is Larger than the size of the energy storage container; the first direction, the second direction and the third direction are perpendicular to each other.

In the above technical solution, the energy storage container is directly used as a transportation box. There is no need to install the energy storage container in a standard container. The energy storage container can expand the number of batteries and improve the energy density of the energy storage container. The size of the energy storage container in at least one of the first direction, the second direction or the third direction does not comply with the ISO international standard, and the size is extended by connecting with the frame assembly to comply with the ISO international standard. The frame component itself is light in weight and contributes little to the overall weight of the energy storage container combined structure, which is conducive to further expansion of the number of batteries in the energy storage container, thereby further increasing the energy density of the energy storage container. The energy storage container combined structure of the embodiment of the present application complies with ISO international standards and can be directly transported. It is not limited by the number of existing standard containers. The energy storage container combined structure can be produced according to production needs.

In some embodiments, there is one frame component, which is disposed on one side of the energy storage container in the first direction; or there are two frame components, which are disposed on both sides of the energy storage container in the first direction. In the embodiment of the present application, one frame component facilitates the assembly of the frame component and the energy storage container, and can simplify the combined structure of the energy storage container. The two frame components are respectively arranged on both sides of the energy storage container. The weight distribution of the energy storage container combined structure is relatively uniform, which is beneficial to improving the structural stability of the energy storage container combined structure.

In some embodiments, the container corner assembly is disposed on a side of the frame assembly remote from the energy storage container in the first direction. In the embodiment of the present application, the container corner assembly installed on the frame assembly is beneficial to operations such as lifting, carrying, and fixing the energy storage container combined structure.

In some embodiments, the container corner piece assembly includes four container corner pieces, the four container corner pieces include two first corner pieces and two second corner pieces, the first corner pieces and the second corner pieces are in the second direction The two first corner pieces are symmetrically arranged in the third direction, and the two second corner pieces are symmetrically arranged in the third direction. In the embodiment of the present application, four ends of the frame assembly are provided with corner pieces, that is, a first corner piece and a second corner piece. The four ends are respectively two tops and two bottoms. The two tops are respectively provided with a first corner piece and a second corner piece, which is beneficial to operations such as lifting and handling of the energy storage container combined structure; the two bottoms are respectively A first corner piece and a second corner piece are provided, which is beneficial to fixing the energy storage container combined structure and the transportation carrier.

In some embodiments, in the second direction, the symmetrical size between a first corner piece and a second corner piece is greater than or equal to the size of the energy storage container. In the embodiment of the present application, the energy storage container connection frame assembly forms an energy storage container combined structure, and the size of the energy storage container along the first direction is extended so that the size of the energy storage container combined structure in the first direction complies with ISO international standards. The dimensions of the container combined structure in the second direction also comply with ISO international standards.

In some embodiments, in the third direction, the size between the two first corner pieces is greater than or equal to the size of the energy storage container; and in the third direction, the size between the two second corner pieces is greater than or equal to the size of the energy storage container. Equal to the size of the energy storage container. In the embodiment of the present application, the energy storage container connection frame assembly forms an energy storage container combined structure, and the size of the energy storage container along the first direction is extended so that the size of the energy storage container combined structure in the first direction complies with ISO international standards. The dimensions in the third direction of the container combined structure also comply with ISO international standards.

In some embodiments, the frame assembly further includes a plurality of first cross bars and a side frame; a plurality of first cross bars extend along the first direction to connect the energy storage container and the side frame respectively; four container corner pieces are provided on the side frame superior. In the embodiment of the present application, the structure of the frame assembly is relatively simple, and its own weight is light, which can reduce the contribution of the frame assembly to the overall weight of the energy storage container combined structure, thereby increasing the number of batteries in the energy storage container, thereby improving energy storage. Container energy density.

In some embodiments, the side frame includes two second horizontal bars and two vertical bars; the two second horizontal bars extend along the second direction, the two vertical bars extend along the third direction, and the two horizontal bars connect the two Vertical pole; four container corner pieces are provided on the second horizontal pole and/or vertical pole. In the embodiment of the present application, the side frame is a frame structure, and its own weight is relatively light.

In some embodiments, the frame assembly further includes a plurality of diagonal bars disposed between the first cross bar and the side frame, and/or between the adjacent second cross bar and the vertical bar. In the embodiment of the present application, the diagonal bar can play a reinforcing role to improve the strength of the frame assembly and improve the structural stability of the frame assembly.

In some embodiments, the energy storage container and frame assembly are detachably connected. In the embodiment of the present application, after the energy storage container combined structure is transported to the user side, the frame components of the energy storage container combined structure can be removed, and the energy storage container and the control cabinet can be connected and used to reduce the occupied space.

In a second aspect, embodiments of the present application also provide a method of transporting an energy storage system. The energy storage system includes an energy storage container. The method includes: providing an energy storage container, with multiple battery cells accommodated inside the energy storage container; and providing a frame. Components; connecting the frame components to the energy storage container to form an energy storage container composite structure that meets the standard container size; transporting the energy storage container composite structure.

In the above technical solution, the energy storage container and the frame assembly are connected to form an energy storage container combined structure for transportation. The size of the energy storage container combined structure meets ISO international standards and can be transported directly, and the energy storage container combined structure can significantly improve The number of batteries in the energy storage container can increase the energy density of the energy storage container.

In some embodiments, after the step of transporting the energy storage container assembly structure; disconnect the frame assembly and the energy storage container and remove the frame assembly. In the embodiment of this application, the frame assembly and the energy storage container are detachably connected. After the energy storage container combined structure is transported to the user side, the frame assembly of the energy storage container combined structure can be removed, and the energy storage container and the control cabinet can be connected. Use to reduce space usage.

In some embodiments, the energy storage system further includes a control cabinet; the method further includes transporting the control cabinet; and connecting the control cabinet and the energy storage container to form the energy storage system. In the embodiment of this application, the control cabinet and the energy storage container are transported independently, which can improve transportation efficiency.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present application more clearly, the drawings required to be used in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. Those of ordinary skill in the art can also obtain other drawings based on the drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of an energy storage container combination structure provided by some embodiments of the present application;

Figure 2 is a schematic structural diagram of a battery provided by some embodiments of the present application;

Figure 3 is an exploded schematic diagram of a battery cell of a battery provided by some embodiments of the present application;

Figure 4 is a schematic structural diagram of an energy storage container combination structure provided by other embodiments of the present application;

Figure 5 is a schematic structural diagram of the energy storage container combination structure shown in Figure 4 from another angle;

Figure 6 is a schematic structural diagram of an energy storage container combination structure provided by other embodiments of the present application;

FIG. 7 is a schematic structural diagram of the energy storage container combined structure shown in FIG. 6 from another angle.

Figure 8 is a schematic block diagram of an energy storage system provided by some embodiments of the present application;

Figure 9 is a schematic flowchart of the transportation method of the energy storage system provided by some embodiments of the present application;

Figure 10 is a schematic flowchart of the transportation method of the energy storage system provided by other embodiments of the present application;

Figure 11 is a schematic flowchart of a transportation method of an energy storage system provided by other embodiments of the present application;

In the drawings, the drawings are not necessarily drawn to actual scale.

Among them, each figure in the figure is marked with:

X, first direction; Y, second direction; Z, third direction;

1. Energy storage container combination structure

10. Energy storage container;

110. Battery; 111. Battery cell;

20. Frame assembly; 21. First horizontal bar; 22. Side frame; 221. Second horizontal bar; 222. Vertical bar; 23. Diagonal bar

30. Container corner piece assembly; 310. First corner piece; 320. Second corner piece;

2. Energy storage system;

200. Control cabinet.

Detailed ways

The embodiments of the present application will be described in further detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of the present application, but cannot be used to limit the scope of the present application, that is, the present application is not limited to the described embodiments.

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are Apply for some of the embodiments, not all of them. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as commonly understood by those skilled in the technical field of this application; the terms used in the specification of this application are only for describing specific implementations. The purpose of the examples is not intended to limit the application; the terms "including" and "having" and any variations thereof in the description and claims of the application and the above description of the drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the description and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or primary-secondary relationship.

Reference in this application to "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

In the description of this application, it should be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection", "connection" and "attachment" should be understood in a broad sense. For example, it can be a fixed connection, It can also be detachably connected or integrally connected; it can be directly connected or indirectly connected through an intermediate medium; it can be internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

The term "and/or" in this application is just an association relationship describing related objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, alone There are three situations B. In addition, the character "/" in this application generally indicates that the related objects are an "or" relationship.

In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of simplicity, detailed descriptions of the same components in different embodiments are omitted. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length and width of the integrated device, are only illustrative illustrations and should not constitute any limitation to the present application. .

"Plural" appearing in this application means two or more (including two).

In this application, battery cells may include lithium ion secondary battery cells, lithium ion primary battery cells, lithium sulfur battery cells, sodium lithium ion battery cells, sodium ion battery cells or magnesium ion battery cells, etc., The embodiments of the present application are not limited to this. The battery cell may be in the shape of a cylinder, a flat body, a rectangular parallelepiped or other shapes, and the embodiments of the present application are not limited to this. Battery cells are generally divided into three types according to packaging methods: cylindrical battery cells, square battery cells and soft-pack battery cells, and the embodiments of the present application are not limited to this.

The battery cell includes an electrode assembly and an electrolyte, and the electrode assembly includes a positive electrode piece, a negative electrode piece and a separator. Battery cells mainly rely on the movement of metal ions between the positive and negative electrodes to work. The positive electrode sheet includes a positive electrode current collector and a positive electrode active material layer, and the positive electrode active material layer is coated on the surface of the positive electrode current collector; the positive electrode current collector includes a positive electrode current collecting part and a positive electrode convex part protruding from the positive electrode current collecting part, and the positive electrode current collecting part The positive electrode convex part is coated with the positive electrode active material layer, and at least part of the positive electrode convex part is not coated with the positive electrode active material layer, and the positive electrode convex part serves as the positive electrode tab. Taking lithium-ion batteries as an example, the material of the cathode current collector can be aluminum, and the cathode active material layer includes cathode active materials. The cathode active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium or lithium manganate, etc. The negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer, and the negative electrode active material layer is coated on the surface of the negative electrode current collector; the negative electrode current collector includes a negative electrode current collecting part and a negative electrode convex part protruding from the negative electrode current collecting part, and the negative electrode current collecting part The negative electrode active material layer is coated on the negative electrode active material layer, and at least part of the negative electrode protruding part is not coated with the negative electrode active material layer, and the negative electrode protruding part serves as the negative electrode tab. The negative electrode current collector may be made of copper, and the negative electrode active material layer may include a negative electrode active material. The negative electrode active material may be carbon or silicon. In order to ensure that large currents can pass through without melting, the number of positive electrode tabs is multiple and stacked together, and the number of negative electrode tabs is multiple and stacked together. The material of the isolator can be PP (polypropylene, polypropylene) or PE (polyethylene, polyethylene), etc.

The battery mentioned in the embodiments of this application refers to a single physical module that includes one or more battery cells to provide higher voltage and quantity. For example, the battery is composed of multiple battery cells connected in series and/or in parallel. constitute. For example, the battery mentioned in this application may include a battery module or a battery pack. Batteries generally include a box for packaging one or more battery cells. The box can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells.

The energy storage system is a device that integrates the battery and the control cabinet. The control cabinet and the battery are coupled and connected to manage the battery. It uses the conversion between electrical energy and chemical energy to realize the storage and output of electrical energy. The battery can be used as a backup power supply, or in Peak shaving and valley filling are performed when the power supply of the power system is uneven, frequency regulation is performed when the power system load or power generation is large, or it is applied to the photovoltaic storage power generation system.

The transportation of the energy storage system is to transport the energy storage system from the production side (manufacturer) to the user side (consumer). In order to facilitate transportation, the battery is placed in the battery compartment. The battery compartment and the control cabinet are integrated into a prefabricated warehouse. Placed in standard container. Standard containers need to meet the international standards set by the International Organization for Standardization (ISO), which stipulate the dimensions of the standard container, including the length, width and height of the standard container; and limit the rated weight of the standard container.

The inventor found that the prefabricated warehouse is limited by the size and rated weight of the standard container, and the number of batteries installed in the prefabricated warehouse is limited, resulting in a relatively low number of batteries in the battery warehouse. Based on the above problems, the inventor considered setting up the battery compartment and the control cabinet independently, transporting them independently, and then transporting them to the user side for use together. After the battery compartment and the control cabinet are set up independently, the size and weight of the battery compartment can be expanded, thereby increasing the number of batteries in the battery compartment. However, the expanded battery compartment still needs to be placed in the container. The container itself has a certain weight, and because the weight of the battery is relatively large, the size of the expanded battery compartment may need to be much smaller than the rated weight of the standard container on the premise of meeting the rated weight of the standard container. The assembly size inside the container, in other words, the expanded battery compartment is still limited to the internal space of the standard container. As a result, the number of batteries in the battery compartment cannot be significantly increased, and the overall energy density of the energy storage system is low.

Based on the above problems discovered by the inventor, the inventor made improvements and proposed an energy storage container combined structure. In addition to being used for battery energy storage, the energy storage container combined structure can also be used for other relatively heavy items. Loading and transportation are further described below for the embodiments of the present application.

In order to better understand the present application, embodiments of the present application will be described below with reference to FIGS. 1 to 11 .

The embodiment of the present application provides an energy storage container combined structure.

Figure 1 is a schematic structural diagram of an energy storage container assembly structure provided by some embodiments of the present application. Figure 2 is a schematic structural diagram of a battery provided by some embodiments of the present application. Figure 3 is a diagram of a battery cell of a battery provided by some embodiments of the present application. Exploded diagram.

As shown in FIGS. 1 to 3 , the energy storage container combined structure 1 provided by the embodiment of the present application includes an energy storage container 10 and a frame assembly 20 . The battery 110 is accommodated inside the energy storage container 10 . The frame component 20 is connected to the energy storage container 10 to form the energy storage container combined structure 1 , and the frame component 20 is provided with a container corner component 30 . In at least one of the first direction X, the second direction Y, or the third direction Z, the size of the energy storage container combined structure 1 is larger than the size of the energy storage container 10 .

In Figure 1, the X direction represents the first direction, the Y direction represents the second direction, and the Z direction represents the third direction. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other. Since a standard container is basically a rectangular parallelepiped structure, in this application the three-dimensional coordinate system composed of the first direction X, the second direction Y and the third direction Z is used to describe the three-dimensional size of the energy storage container combined structure 1. The first direction The length direction, width direction and height direction of the container combined structure 1. Of course, the first direction X, the second direction Y and the third direction Z can also represent the width direction, length direction and height direction of the energy storage container combined structure 1 . The above is only an exemplary description of directions and is not intended to limit the specific directions of the first direction X, the second direction Y, and the third direction Z in this application.

A battery 110 is installed in the energy storage container 10 . The external structure of the energy storage container 10 is a box structure. In other words, the box structure has a hollow cavity, and the cavity is used to accommodate the battery 110 .

The box structure can be in a variety of shapes and can be customized according to the needs of the user, such as cylinder, cuboid or cube, etc. For example, the box structure is a rectangular parallelepiped structure, which is close to the shape of a standard container, which is convenient for transportation and assembly.

Since the energy storage container 10 is limited by the rated weight of a standard container, the external dimensions (at least one of length, width and height) of the energy storage container 10 may not comply with the international standards established by ISO. For example, the energy storage container 10 The width and height comply with ISO international standards, but its length does not comply with ISO international standards. Alternatively, the width of the energy storage container 10 complies with the ISO international standard, but its height and length do not comply with the ISO international standard. Or, the length of the energy storage container 10 complies with the ISO international standard, but its width and length do not comply with the ISO international standard. Alternatively, the length, width and height of the energy storage container 10 do not comply with ISO international standards. The above is only an example of the energy storage container 10 and does not limit the scope of protection of the embodiments of the present application.

The battery 110 includes a plurality of battery cells 111 , and the plurality of battery cells 111 can be connected in series, in parallel, or in mixed connection. Mixed connection means that the plurality of battery cells 111 are both connected in series and in parallel. Multiple battery cells 111 may be directly connected in series, parallel, or mixed together to form the battery 110 . Of course, multiple battery cells 111 may be pre-connected in series, parallel, or mixed to form a battery module, and then multiple battery modules may be connected in series, parallel, or mixed to form a whole as the battery 110 . The multiple battery cells 111 in the battery module can be electrically connected through bus components to realize parallel, series or mixed connection of the multiple battery cells 111 in the battery module.

The battery cell 111 includes an electrode assembly 1111 and a housing assembly 1112. The electrode assembly 1111 is accommodated in the housing assembly 1112. The electrode assembly 1111 is the core component for charging and discharging the battery cell 111, and it may be a wound electrode assembly, a laminated electrode assembly, or other forms of electrode assembly. The housing assembly 1112 may include a housing 1112a and a cover assembly 1112b. The housing 1112a is a hollow structure with an opening. The cover assembly 1112b covers the opening of the housing 1112a and forms a sealed connection to form a container for accommodating the electrode assembly 1111. cavity. The housing 1112a can be in various shapes, such as cylinder, cuboid, etc. The shape of the housing 1112a can be determined according to the specific shape of the electrode assembly 1111. For example, if the electrode assembly 1111 has a cylindrical structure, a cylindrical shell can be selected; if the electrode assembly 1111 has a rectangular parallelepiped structure, a rectangular parallelepiped shell can be selected.

The frame assembly 20 includes a frame structure composed of a plurality of horizontal bars and a plurality of vertical bars. Multiple horizontal bars and multiple vertical bars can be welded or bolted to form a frame structure. The frame component 20 can be flexibly set according to the size difference between the energy storage container 10 and the standard container, and its structural form is simple and easy to standardize manufacturing; in addition, the frame component 20 itself is light in weight, which has a negative impact on the energy storage container combined structure 1. The overall weight contribution is small, in other words, it has a small impact on the number of batteries 110 in the energy storage container 10. The energy storage container 10 can expand the number of batteries 110 to a large extent, and can significantly increase the energy density of the energy storage system. For example, the width and height of the energy storage container 10 comply with the ISO international standard, but its length is less than the length of the ISO international standard. The length of the energy storage container 10 can be extended by setting the frame assembly 20 to make the energy storage container combined structure 1 The length complies with ISO international standards. Alternatively, the width, height and length of the energy storage container 10 are all smaller than the dimensions specified by ISO international standards. The width, height and length of the energy storage container 10 can be extended through the frame assembly 20 so that the width, height and height of the energy storage container combined structure 1 are and length are in line with ISO international standards.

The number of frame components 20 is one or more, and the specific number thereof can be determined according to the external dimensions and external shape of the energy storage container 10 . Depending on the size of the energy storage container 10 that needs to be extended, the frame assembly 20 may be provided on only one side of the energy storage container 10 or may be provided on multiple sides.

The container corner component 30 is provided on the energy storage container combined structure 1 and plays an important role in lifting, carrying, fixing and other operations of the energy storage container combined structure 1 .

In some embodiments, the container corner component 30 is disposed at the bottom of the frame assembly 20 , the container corner component 30 can bear the overall weight of the energy storage container composite structure 1 ; and the container corner component 30 can fix the energy storage container composite structure 1 and transportation carrier, which reduces the risk of the energy storage container combined structure 1 deviating from the initial position during transportation, can prevent the energy storage container combined structure 1 from being damaged to a certain extent, and can improve the safety of the transportation process. In this article, the transportation carrier can be a sea, land or air transportation carrier such as a ship, a van, a train or an airplane.

In other embodiments, the container corner component 30 can also be disposed on the top of the frame component 20 to facilitate lifting and carrying the energy storage container assembly structure 1 .

Of course, the container corner assembly 30 can be provided on both the bottom and the top of the frame assembly 20 .

In some embodiments, the container corner component 30 can also be disposed on the bottom and/or the top of the energy storage container 10 at the same time, and cooperate with the container corner component 30 disposed on the frame component 20 .

When the container corner assembly 30 is disposed at the bottom, the energy storage container 10 and the frame assembly 20 cooperate so that the four end corners of the bottom of the energy storage container composite structure 1 are equipped with the container corner assembly 30 to carry the energy storage container composite structure 1 overall weight. When the container corner assembly 30 is disposed on the top, the energy storage container 10 and the frame assembly 20 cooperate so that the four end corners of the top of the energy storage container combined structure 1 are equipped with the container corner assembly 30 to facilitate operations such as lifting and transportation.

In the embodiment of the present application, the energy storage container 10 is directly used as a transportation box. There is no need to install the energy storage container 10 in a standard container. The energy storage container 10 can significantly expand the number of batteries 110 and thereby increase the energy density of the energy storage container 10 . The size of the energy storage container 10 in at least one of the first direction X, the second direction Y, or the third direction Z does not comply with the ISO international standard, and the size is extended by connecting with the frame assembly 20 to comply with the ISO international standard. The frame component 20 itself is light in weight and contributes little to the overall weight of the energy storage container combined structure 1, which is conducive to further expansion of the number of batteries 110 in the energy storage container 10, thereby further increasing the energy density of the energy storage container 10. The energy storage container combined structure 1 of the embodiment of the present application complies with ISO international standards and can be directly transported. It is not limited by the number of existing standard containers. The energy storage container combined structure 1 can be produced according to production needs.

When any size of the energy storage container 10 in the first direction X, the second direction Y and the second direction Y does not comply with the ISO international standard, the size of the energy storage container 10 in this direction can be extended by setting the frame assembly 20 . For example, when the size (eg length) of the energy storage container 10 in the first direction X does not comply with the ISO international standard, the frame assembly 20 is provided on the side of the energy storage container 10 in the first direction X.

Please continue to refer to FIGS. 1 to 3 . As some examples, there is one frame assembly 20 , which is disposed on one side of the energy storage container 10 in the first direction X. One frame assembly 20 facilitates the assembly of the frame assembly 20 and the energy storage container 10 and can simplify the energy storage container combined structure 1 .

Figure 4 is a schematic structural diagram of an energy storage container combined structure provided by other embodiments of the present application; Figure 5 is a schematic structural diagram of the energy storage container combined structure shown in Figure 4 from another angle.

As shown in FIGS. 4 and 5 , as another example, there are two frame assemblies 20 , which are arranged on both sides of the energy storage container 10 in the first direction X. The two frame assemblies 20 are respectively arranged on both sides of the energy storage container 10. The weight distribution of the energy storage container combined structure 1 is relatively uniform, which is beneficial to improving the structural stability of the energy storage container combined structure 1. The structures of the two frame assemblies 20 may be exactly the same. Of course, the structures of the two frame assemblies 20 may also be different. For example, the dimensions of the two frame assemblies 20 in the first direction X may be different.

Please continue to refer to FIGS. 4 and 5 , optionally, the container corner component 30 is disposed on a side of the frame component 20 away from the energy storage container 10 in the first direction X. The side of the frame assembly 20 close to the energy storage container 10 constitutes the internal component of the energy storage container combined structure 1, and the side of the frame assembly 20 away from the energy storage container 10 constitutes the end of the energy storage container combined structure 1, and a container corner is provided at the end. The component assembly 30 is beneficial to operations such as lifting, carrying, and fixing the energy storage container combined structure 1 .

Further optionally, the container corner piece assembly 30 includes four container corner pieces, the four container corner pieces include two first corner pieces 310 and two second corner pieces 320 , the first corner piece 310 and the second corner piece 320 They are symmetrically arranged in the second direction Y, the two first corner pieces 310 are symmetrically arranged in the third direction Z, and the two second corner pieces 320 are symmetrically arranged in the third direction Z. Four ends of the frame assembly 20 on the side away from the energy storage container 10 are provided with corner pieces, that is, the first corner piece 310 and the second corner piece 320 . The four ends are respectively two tops and two bottoms. The two tops are respectively provided with a first corner piece 310 and a second corner piece 320, which is beneficial to operations such as lifting and transportation of the energy storage container combined structure 1; Each bottom is respectively provided with a first corner piece 310 and a second corner piece 320, which is beneficial to fixing the energy storage container combined structure 1 and the transportation carrier.

Please continue to refer to Figures 4 and 5. Further optionally, in the first direction X, the energy storage container 10 is extended in the second direction Y by connecting the frame assembly 20 to comply with the ISO international standard. When the size complies with ISO international standards, in this case, there is no need to set the frame assembly 20 to extend the size of the energy storage container 10 in the second direction Y. In the second direction Y, there is a symmetrical first corner piece 310 and a second The size between the corner pieces 320 may be equal to the size of the energy storage container 10 in the second direction Y.

Of course, when the size of the energy storage container 10 in the second direction Y is smaller than the ISO international standard, the energy storage container 10 still needs to extend the size in the second direction Y by connecting the frame assembly 20 to comply with the ISO international standard. In this case, In the second direction Y, the symmetrical size between the first corner piece 310 and the second corner piece 320 may be larger than the size of the energy storage container 10 in the second direction Y.

In the above embodiment, the energy storage container 10 is connected to the frame assembly 20 to form the energy storage container combined structure 1, and the size of the energy storage container 10 along the first direction X is extended to make the size of the energy storage container combined structure 1 in the first direction X conform to According to ISO international standards, the size of the second direction Y of the energy storage container combination structure 1 also complies with ISO international standards.

Please continue to refer to Figures 4 and 5. Further optionally, in the first direction X, the energy storage container 10 is extended in size by connecting the frame assembly 20 to comply with ISO international standards. When the size complies with ISO international standards, in this case, there is no need to set the frame assembly 20 to extend the size of the energy storage container 10 in the third direction Z. In the third direction Z, the size between the two first corner pieces 310 is equal to The size of the energy storage container 10; and in the third direction Z, the size between the two second corner pieces 320 is equal to the size of the energy storage container 10.

Figure 6 is a schematic structural diagram of an energy storage container combined structure provided by other embodiments of the present application; Figure 7 is a schematic structural diagram of the energy storage container combined structure shown in Figure 6 from another angle.

As shown in Figures 6 and 7, in the third direction Z, when the size of the energy storage container 10 is smaller than the ISO international standard, the energy storage container 10 still needs to extend the size in the third direction Z by connecting the frame assembly 20 to comply with the ISO international standard. Standard, in this case, in the third direction Z, the size between the two first corner pieces 310 is larger than the size of the energy storage container 10; and in the third direction Z, the size between the two second corner pieces 320 The size is larger than the size of the energy storage container 10 .

The energy storage container 10 is connected to the frame assembly 20 to form the energy storage container combined structure 1. The size of the energy storage container 10 along the first direction X is extended so that the size of the energy storage container combined structure 1 in the first direction The dimensions of the third direction Z of the container combined structure 1 also comply with ISO international standards.

Further optionally, on the basis that the extended dimensions of the energy storage container 10 in the first direction X and the second direction Y by connecting the frame assembly 20 comply with ISO international standards, the dimensions of the energy storage container 10 in the third direction Z comply with ISO. International standards, in this case, there is no need to set the frame assembly 20 to extend the size of the energy storage container 10 in the third direction Z. In the third direction Z, the size between the two first corner pieces 310 is equal to the size of the energy storage container 10 and in the third direction Z, the size between the two second corner pieces 320 is equal to the size of the energy storage container 10 .

Of course, when the size of the energy storage container 10 in the third direction Z is smaller than the ISO international standard, the energy storage container 10 still needs to extend the size in the third direction Z by connecting the frame assembly 20 to comply with the ISO international standard. In this case, In the third direction Z, the size between the two first corner pieces 310 is larger than the size of the energy storage container 10 ; and in the third direction Z, the size between the two second corner pieces 320 is larger than the size of the energy storage container 10 size of.

In the above embodiment, the energy storage container 10 is connected to the frame assembly 20 to form the energy storage container combined structure 1, and the dimensions of the energy storage container 10 along the first direction X and the second direction Y are extended to make the first direction of the energy storage container combined structure 1 The dimensions in the direction X and the second direction Y comply with ISO international standards, and the dimensions in the third direction Z of the energy storage container combined structure 1 also comply with the ISO international standards.

Please continue to refer to FIGS. 6 and 7 . In some embodiments, the frame assembly 20 further includes a plurality of first horizontal bars 21 and side frames 22 . A plurality of first cross bars 21 extend along the first direction X, respectively connecting the energy storage container 10 and the side frame 22; four container corner pieces 31 are provided on the side frame 22. The structure of the frame assembly 20 is relatively simple, and its own weight is light, which can reduce the contribution of the frame assembly 20 to the overall weight of the energy storage container combined structure 1, thereby increasing the number of batteries in the energy storage container 10, thereby improving the energy storage container 10. Energy Density. In the embodiment of the present application, the first cross bar 21 and the side frame 22 may be detachably connected or fixedly connected. The first crossbar 21 and the energy storage container 10 may be detachably connected or fixedly connected. The detachable connection can be connected by bolts, etc., and the fixed connection can be welded.

In some examples, the side frame 22 may be a plate-like structure with a simple structural form.

In other examples, the side frame 22 includes two second horizontal bars 221 and two vertical bars 222; the two second horizontal bars 221 extend along the second direction Y, and the two vertical bars 222 extend along the third direction Z, Two second cross bars 221 connect two vertical bars 222; four container corner pieces 31 are provided on the second cross bars 221 and/or vertical bars 222. The second horizontal bar 221 and the vertical bar 222 can be connected by welding or other methods. The side frame 22 is a frame structure and its own weight is relatively light.

Optionally, the frame assembly 20 further includes a plurality of inclined bars 23 disposed between the first cross bar 21 and the side frame 22 and/or between the adjacent second cross bar 221 and the vertical bar 222 . The diagonal bars 23 can play a reinforcing role to increase the strength of the frame assembly 20 and improve the structural stability of the frame assembly 20 .

The frame component 20 can be made of stainless steel, aluminum alloy, metal aluminum or fiberglass. The strength of the above-mentioned materials is relatively high and the weldability is good. The frame structure 30 produced is relatively stable and light in weight.

In some embodiments, the energy storage container 10 and the frame assembly 20 are detachably connected. After the energy storage container assembly structure 1 is transported to the user side, the frame assembly 20 of the energy storage container assembly structure 1 can be removed, and the energy storage container assembly 20 can be removed. The container 10 is connected to the control cabinet to reduce the occupied space.

Of course, the energy storage container 10 and the frame assembly 20 can also be fixedly connected. After the energy storage container combined structure 1 is transported to the user side, it can be directly connected to the control cabinet for use.

Embodiments of the present application also provide a transportation method for an energy storage system, where the energy storage system includes an energy storage container.

Figure 8 is a schematic block diagram of the energy storage system. As shown in Figure 8, the energy storage system 2 includes an energy storage container 10 and a control cabinet 200; the control cabinet 200 is used to electrically connect with the energy storage container 10 to realize the control of the energy storage container. Battery control within 10 years.

Figure 9 is a schematic flowchart of the transportation method of the energy storage system provided by some embodiments of the present application.

As shown in Figure 9, this transportation method includes:

S100, provides an energy storage container with batteries inside;

S200, providing frame components;

S300, connect the frame components to the energy storage container to form an energy storage container composite structure that meets the standard container size;

S400, transportation energy storage container combined structure.

In the embodiment of the present application, the energy storage container and the frame assembly are connected to form an energy storage container combined structure for transportation. The size of the energy storage container combined structure meets ISO international standards and can be transported directly, and the energy storage container combined structure can significantly Increasing the number of batteries in the energy storage container can also increase the energy density of the energy storage container.

Figure 10 is a schematic flowchart of a transportation method of an energy storage system provided by other embodiments of the present application. As shown in Figure 10, in some embodiments, after step S400, the transportation method further includes:

S500, disconnect the frame assembly from the energy storage container and remove the frame assembly.

Removing the frame components saves the space occupied by the energy storage system and makes it applicable to a wider range of applications.

Figure 11 is a schematic flowchart of a transportation method of an energy storage system provided by other embodiments of the present application. As shown in Figure 11, optionally, the transportation method also includes:

S600, transport control cabinet;

S700, connects the control cabinet and energy storage container to form an energy storage system.

The control cabinet is electrically connected to the battery in the energy storage container to manage and control the battery. The control cabinet is small in size and can be transported as bulk cargo during transportation. The control cabinet and energy storage container are transported independently, which can improve transportation efficiency.

When the frame components and the energy storage container are detachably connected, after the energy storage container combined structure is transported to the user side, the frame components of the energy storage container combined structure can be removed, and the energy storage container and the control cabinet can be connected to reduce the space occupied. . In other words, after step S500, step S700 is performed. In this article, the steps for transporting the control cabinet and the steps for transporting the energy storage container are presented in no particular order.

Of course, when the frame assembly and the energy storage container are fixedly connected, there is no need to remove the frame assembly. The control cabinet and the energy storage container can be directly electrically connected, which can save operating procedures. In other words, after step S400, step S700 may be performed.

While the present application has been described with reference to preferred embodiments, various modifications may be made and equivalents may be substituted for components thereof without departing from the scope of the application. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any way. The application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims (13)

An energy storage container combined structure, including: Energy storage containers housing batteries inside; and A frame assembly is connected to the energy storage container to form the energy storage container combined structure, and the frame assembly is provided with a container corner assembly, Wherein, in at least one of the first direction, the second direction and the third direction, the size of the energy storage container combined structure is larger than the size of the energy storage container; the first direction, the second direction and the third direction are perpendicular to each other. The energy storage container combined structure according to claim 1, wherein, The frame assembly is one and is disposed on one side of the energy storage container in the first direction; or There are two frame assemblies, which are respectively arranged on both sides of the energy storage container in the first direction. The energy storage container combined structure according to claim 2, wherein the container corner component is disposed on a side of the frame assembly away from the energy storage container in the first direction. The energy storage container combined structure according to claim 3, wherein the container corner piece assembly includes four container corner pieces, and the four container corner pieces include two first corner pieces and two second corner pieces, The first corner piece and the second corner piece are symmetrically arranged in the second direction, the two first corner pieces are symmetrically arranged in the third direction, and the two second corner pieces are symmetrically arranged in the third direction. The third party is arranged symmetrically in the direction. The energy storage container combined structure according to claim 4, wherein in the second direction, the symmetrical size between the first corner piece and the second corner piece is greater than or equal to the Energy storage container dimensions. The energy storage container combined structure according to claim 4 or 5, wherein in the third direction, the size between the two first corner pieces is greater than or equal to the size of the energy storage container; and in In the third direction, the size between the two second corner pieces is greater than or equal to the size of the energy storage container. The energy storage container combined structure according to any one of claims 4 to 6, wherein, The frame assembly includes a plurality of first cross bars and side frames; The plurality of first cross bars extend along the first direction and connect the energy storage container and the side frame respectively; The four container corner pieces are provided on the side frame. The energy storage container combined structure according to claim 7, wherein the side frame includes two second horizontal bars and two vertical bars; the two second horizontal bars extend along the second direction, and the two second horizontal bars extend along the second direction. The vertical rod extends along the third direction, and the two horizontal rods connect the two vertical rods; the four container corner pieces are provided on the second horizontal rod and/or the vertical rod. The energy storage container combined structure according to claim 8, wherein, The frame assembly also includes a plurality of diagonal bars, the diagonal bars are arranged between the first cross bar and the side frame, and/or between the adjacent second cross bar and the vertical bar. The energy storage container combined structure according to any one of claims 1 to 9, wherein, The energy storage container and the frame assembly are detachably connected. A transportation method of an energy storage system, the energy storage system includes an energy storage container, the method includes: An energy storage container is provided, and a battery is accommodated inside the energy storage container; Provide framework components; Connect the frame assembly to the energy storage container to form an energy storage container combined structure that meets standard container dimensions; Transport the energy storage container combined structure. The method of claim 11, wherein After the step of transporting the energy storage container combined structure, the method further includes: Disconnect the frame assembly from the energy storage container and remove the frame assembly. According to the method of claim 11 or 12, the energy storage system further includes a control cabinet; the method further includes, transporting said control cabinet; The control cabinet and the energy storage container are connected to form the energy storage system.