An energy storage system

Abstract

The utility model relates to the technical field of energy storage, especially to a kind of energy storage system.Energy storage system includes first combination cabinet, and first combination cabinet includes control module and at least one first battery module, control module is electrically connected with all first battery module, to control first battery module work.First combination cabinet can be independently debugged and can be grid-connected operation, and deployment cycle is relatively shorter.Moreover, energy storage system is modularized by first combination cabinet, and when energy storage system is used, small capacity demand can use first combination cabinet alone, and flexibility is stronger, and transportation is relatively simple and convenient.

Description

Technical Field

[0001] This utility model relates to the field of energy storage technology, and in particular to an energy storage system. Background Technology

[0002] Current energy storage systems consist of at least one central control container and multiple battery containers. Both the central control container and the battery containers need to be shipped separately and installed at the site, which results in a long deployment cycle. Utility Model Content

[0003] This utility model provides an energy storage system to solve the problem that existing energy storage systems have long deployment cycles.

[0004] In a first aspect, this utility model provides an energy storage system, which includes a first combination cabinet. The first combination cabinet includes a control module and at least one first battery module. The control module is electrically connected to all the first battery modules to control the operation of the first battery modules.

[0005] In some embodiments, the first combination cabinet includes a first cabinet frame, the first cabinet frame is provided with a first placement space and a second placement space, and the control module and the first battery module are disposed in the first placement space;

[0006] The first combination cabinet also includes a first wiring harness, which electrically connects the control module and the first battery module, and the first wiring harness is disposed in the second placement space.

[0007] In some embodiments, the first cabinet frame further includes two first side panels and two second side panels, the two first side panels being disposed at both ends of the first cabinet frame in a first direction, and the two second side panels being disposed at both ends of the first cabinet frame in a second direction, the two first side panels and the two second side panels enclosing the second placement space;

[0008] The first side plate is provided with a first inspection port communicating with the second installation space, and / or the second side plate is provided with a second inspection port communicating with the second installation space.

[0009] In some embodiments, the first placement space is located above the second placement space.

[0010] In some embodiments, the energy storage system further includes a second combination cabinet, which includes at least two second battery modules; the first combination cabinet is connected to the second combination cabinet, and the control module is also electrically connected to all the second battery modules, and the control module controls the operation of the second battery modules.

[0011] In some embodiments, the second combination cabinet includes a second cabinet frame, the second cabinet frame is provided with a third placement space and a fourth placement space, and the second battery module is disposed in the third placement space;

[0012] The second battery module is provided with a second wiring harness extending out of the second battery module, and the second wiring harness is disposed in the fourth placement space.

[0013] In some embodiments, the second cabinet frame further includes two third side panels and two fourth side panels, the two third side panels being disposed at both ends of the second cabinet frame in a first direction, the two fourth side panels being disposed at both ends of the second cabinet frame in a second direction, and the two third side panels and the two fourth side panels enclosing the fourth placement space;

[0014] The third side plate is provided with a third maintenance port communicating with the fourth installation space, and / or the fourth side plate is provided with a fourth maintenance port communicating with the fourth installation space.

[0015] In some embodiments, the first combined cabinet further includes a first cabinet frame, the first cabinet frame including a first inspection port and a second inspection port, and the control module is provided with a third wiring harness extending out of the control module, the third wiring harness passing through the first inspection port and / or the second inspection port and extending out of the first cabinet frame;

[0016] The second wiring harness extends out of the second cabinet through the third inspection port and / or the fourth inspection port. The end of the second wiring harness extending out of the second cabinet is connected to the end of the third wiring harness extending out of the first cabinet to electrically connect the control module to the second battery module.

[0017] In some embodiments, both the first cabinet frame and the second cabinet frame are frame structures.

[0018] In some embodiments, the control module includes a first housing, the first battery module includes a second housing, the second battery module includes a third housing, and the first housing, the second housing, and the third housing have the same structural dimensions.

[0019] In some embodiments, the first combination cabinet and the second combination cabinet are arranged in a row.

[0020] In some embodiments, the back of the first modular cabinet is connected to the back of the second modular cabinet.

[0021] In some embodiments, the first combination cabinet is provided with the control module and two or three of the first battery modules.

[0022] In some embodiments, the second combination cabinet is provided with two or three of the second battery modules.

[0023] In some embodiments, the control module is a control cabinet; and / or, the first battery module is a first energy storage cabinet; and / or, the second battery module is a second energy storage cabinet.

[0024] In some embodiments, the first combination cabinet includes a first fire-fighting device, which is connected to the control module and the first battery module respectively; and / or

[0025] The second combination cabinet includes a second fire-fighting device, which is connected to the control module and the second battery module respectively.

[0026] Compared with prior art, the present invention has the following advantages:

[0027] The energy storage system of this embodiment includes a first combined cabinet comprising a control module and at least one first battery module. The control module is electrically connected to all the first battery modules and controls their operation. The first combined cabinet can be independently debugged and can be connected to the grid, with a short deployment cycle. Moreover, the energy storage system achieves modular design through the first combined cabinet. When the energy storage system is in use, small-capacity requirements can be met by using the first combined cabinet alone, resulting in greater flexibility and relatively simple and convenient transportation.

[0028] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0030] Figure 1 This is a schematic diagram of the structure of the first combined cabinet according to the first embodiment of this application;

[0031] Figure 2 This is a schematic diagram of the structure of the first combined cabinet according to the second embodiment of this application;

[0032] Figure 3 This is a schematic diagram of the structure of the second combined cabinet according to an embodiment of this application;

[0033] Figure 4 This is a schematic diagram of the structure of the first cabinet frame according to an embodiment of this application;

[0034] Figure 5 This is a schematic diagram of the structure of the left view of the first cabinet frame according to an embodiment of this application;

[0035] Figure 6 yes Figure 2 The diagram shows the structural schematic of the main view of the first combined cabinet.

[0036] Figure 7 yes Figure 6 A schematic diagram of the structure in the AA sectional view;

[0037] Figure 8 This is a schematic diagram of the energy storage system according to the first embodiment of this application;

[0038] Figure 9 This is a schematic diagram of the energy storage system according to the second embodiment of this application;

[0039] Figure 10 This is a schematic diagram of the energy storage system according to the third embodiment of this application;

[0040] Figure 11 This is a schematic diagram of the energy storage system according to the fourth embodiment of this application;

[0041] Figure 12 This is a schematic diagram of the energy storage system according to the fifth embodiment of this application;

[0042] Figure 13 This is a schematic diagram of the energy storage system according to the sixth embodiment of this application;

[0043] Figure 14 This is a schematic diagram of the energy storage system according to the seventh embodiment of this application.

[0044] Figure label:

[0045] 1. First cabinet; 11. Control module; 12. First battery module; 13. First cabinet frame; 131. First installation space; 132. Second installation space; 133. First side panel; 134. Second side panel; 135. First inspection port; 136. Second inspection port; 137. First side column; 138. First crossbeam; 139. First hanging rod; 140. First base plate; 141. Wiring harness fixing structure;

[0046] 2. Second combination cabinet; 21. Second battery module; 22. Second cabinet frame; 221. Third installation space; 222. Fourth installation space; 223. Third side panel; 224. Fourth side panel; 225. Third inspection port; 226. Fourth inspection port; 227. Second side column; 228. Second crossbeam; 229. Second hanging rod;

[0047] 31. First fire-fighting pipe; 32. Second fire-fighting pipe;

[0048] X, the first direction; Y, the second direction. Detailed Implementation

[0049] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0050] Current energy storage systems utilize a central control container for centralized control and / or centralized liquid cooling of multiple battery containers. The central control container and battery containers are connected via piping, resulting in low maintainability as both require system and piping disassembly for maintenance. Neither the battery nor the central control container can operate independently in grid-connected mode. For large-capacity applications, a complete energy storage system requires at least one central control container and multiple battery containers. Even for smaller capacity applications, multiple central control and battery containers must be combined, highlighting the system's lack of flexibility. Furthermore, the piping and cabling connections between the central control and battery containers, and between different battery containers, necessitate reserving sufficient internal space for on-site installation. This reduces the utilization of internal space within both the central control and battery containers, impacting the energy density of the energy storage system.

[0051] Reference Figures 1 to 14 As shown in the embodiment of this application, an energy storage system is provided. It adopts a modular design, which is highly safe and practical. It not only meets the overall transportation and production standardization requirements, but also has the advantages of short deployment cycle, convenient installation and maintenance, high flexibility, and high energy density.

[0052] The energy storage system provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0053] In some embodiments, the energy storage system includes a first combination cabinet 1, which includes a control module 11 and at least one first battery module 12. The control module 11 is electrically connected to all the first battery modules 12 to control the operation of the first battery modules 12.

[0054] In this embodiment, the first modular cabinet 1 includes a control module 11 and at least one first battery module 12. The control module 11 is electrically connected to all the first battery modules 12 to control their operation. The first modular cabinet 1 can be independently debugged and grid-connected, offering the advantage of a shorter deployment cycle. The energy storage system achieves a modular design through the first modular cabinet 1. When the energy storage system is in use, small-capacity requirements can be met by using the first modular cabinet 1 alone, resulting in greater flexibility and relatively simple and convenient transportation.

[0055] In some embodiments, the energy storage system further includes a second combination cabinet 2, which includes at least two second battery modules 21; the first combination cabinet 1 is connected to the second combination cabinet 2, and the control module 11 is also electrically connected to all the second battery modules 21, and the control module 11 controls the operation of the second battery modules 21.

[0056] In this embodiment of the application, the first battery module 12 and the second battery module 21 each include a plurality of battery clusters, and the control module 11 is used to centrally control the first battery module 12 and the second battery module 21, the control including controlling the battery clusters.

[0057] In this embodiment, the first battery module 12 includes a control module 11 and the first battery module 12 itself. The first battery module 12 can be independently debugged and can operate in grid-connected mode. The second combination cabinet 2 is a pure battery system that needs to be connected to the first battery module 12 for grid-connected operation. The energy storage system achieves modular design through the first combination cabinet 1 and the second combination cabinet 2. When the energy storage system is in use, the first combination cabinet 1 can be used alone for small capacity requirements. For large capacity requirements, the first combination cabinet 1 can be connected to at least one second combination cabinet 2. The control module 11 in the first combination cabinet 1 can simultaneously control multiple first battery modules 12 and multiple second battery modules 21 to achieve debugging and grid-connected operation. Therefore, the energy storage system of this embodiment can form multiple capacity gradients according to small and large capacity requirements, flexibly responding to different capacity requirements of different customers, thus offering greater flexibility. Moreover, for small capacity requirements, the first combination cabinet 1 can be transported separately. For large capacity requirements, it is not necessary to connect them in advance at the factory. The first combination cabinet 1 and the second combination cabinet 2 can be transported to the customer's site for installation, then combined and connected to the grid, making transportation relatively simple and convenient.

[0058] In some embodiments, the first battery module 12 and the second battery module 21 further include a plurality of battery cluster liquid cooling devices, each battery cluster being connected to a battery cluster liquid cooling device, and the control module 11 is used to control the battery cluster liquid cooling devices in the first battery module 12 and the battery cluster liquid cooling devices in the second battery module 21.

[0059] It is understood that the battery cluster and the battery cluster liquid cooling device can be the structure in conventional technology. Of course, the first battery module 12 and the second battery module 21 can also be equipped with structures such as inverters, but this application embodiment will not elaborate on this.

[0060] In some embodiments, the first combination cabinet 1 includes a first cabinet frame 13, the first cabinet frame 13 is provided with a first placement space 131 and a second placement space 132, the first placement space 131 is provided with a control module 11 and a first battery module 12; the first combination cabinet 1 also includes a first wiring harness, the first wiring harness electrically connects the control module 11 and the first battery module 12, and the second placement space 132 is provided with the first wiring harness.

[0061] It is understood that the first wiring harness includes multiple sub-wires, which are connected through a reasonable arrangement; of course, the first combination cabinet 1 can also be equipped with multiple first wiring harnesses. The arrangement and structure of the first wiring harnesses can adopt conventional technology, which will not be elaborated in this embodiment. In this embodiment, there are multiple first wiring harnesses, and each first battery module 12 is connected to the control module 11 through at least one first wiring harness. Thus, the control module 11 is electrically connected to all the first battery modules 12 to realize the control of the first battery modules 12.

[0062] In this embodiment, the first cabinet 13 can realize the installation and fixation of the control module 11, the first battery module 12 and the first wiring harness. By setting the first placement space 131 and the second placement space 132, the control module 11 and the first battery module 12 and the first wiring harness are fixed in separate areas. The structure inside the first combination cabinet 1 is more regular and convenient for subsequent maintenance.

[0063] In some embodiments, the first wiring harness includes power wiring harnesses, signal wiring harnesses, etc., which can be set according to the usage requirements.

[0064] In some embodiments, the first cabinet 13 further includes two first side plates 133 and two second side plates 134. The two first side plates 133 are disposed at both ends of the first cabinet 13 in the first direction X, and the two second side plates 134 are disposed at both ends of the first cabinet 13 in the second direction Y. The two first side plates 133 and the two second side plates 134 enclose a second installation space 132. The first side plates 133 are provided with a first inspection port 135 communicating with the second installation space 132, and / or the second side plates 134 are provided with a second inspection port 136 communicating with the second installation space 132.

[0065] In this embodiment, the two first side plates 133 and the two second side plates 134 can protect the first wiring harness located in the second mounting space 132, preventing damage caused by the exposure of the first wiring harness. The first inspection port 135 and the second inspection port 136 are used for maintenance of the first wiring harness, meaning maintenance can be performed without disassembling the first modular cabinet 1. Thus, the energy storage system has the advantage of simple and convenient maintenance.

[0066] In some embodiments, the first mounting space 131 is located above the second mounting space 132 to facilitate the setup and installation of the control module 11, the first battery module 12, and the first wiring harness.

[0067] In some embodiments, the second combination cabinet 2 includes a second cabinet frame 22, the second cabinet frame 22 is provided with a third placement space 221 and a fourth placement space 222, a second battery module 21 is provided in the third placement space 221; the second battery module 21 is provided with a second wiring harness extending out of the second battery module 21, and the second wiring harness is provided in the fourth placement space 222.

[0068] It is understood that the second wiring harness includes multiple sub-wires, which are connected by a reasonable arrangement; of course, each second battery module 21 may also extend multiple second wiring harnesses. The setting and structure of the second wiring harness can adopt conventional technology, which will not be elaborated in this embodiment.

[0069] In this embodiment, the second cabinet 22 can realize the installation and fixation of multiple second battery modules 21 and second wiring harnesses. By setting the third placement space 221 and the fourth placement space 222, multiple second battery modules 21 and second wiring harnesses are fixed in different areas, making the structure inside the second combination cabinet 2 more regular and convenient for subsequent maintenance.

[0070] In some embodiments, the second wiring harness includes power wiring harnesses, signal wiring harnesses, etc., which can be set according to the usage requirements.

[0071] In some embodiments, the second cabinet 22 further includes two third side plates 223 and two fourth side plates 224. The two third side plates 223 are located at both ends of the second cabinet 22 in the first direction X, and the two fourth side plates 224 are located at both ends of the second cabinet 22 in the second direction Y. The two third side plates 223 and the two fourth side plates 224 enclose a fourth installation space 222. The third side plates 223 are provided with a third inspection port 225 communicating with the fourth installation space 222, and / or the fourth side plates 224 are provided with a fourth inspection port 226 communicating with the fourth installation space 222.

[0072] In this embodiment, the two third side plates 223 and the two fourth side plates 224 can protect the second wiring harness located in the fourth installation space 222, preventing damage caused by the exposure of the second wiring harness. The third inspection port 225 and the fourth inspection port 226 are used for maintenance of the second wiring harness, meaning maintenance can be performed without disassembling the second assembly cabinet 2. Thus, the energy storage system has the advantage of simple and convenient maintenance.

[0073] In some embodiments, the third mounting space 221 is located above the fourth mounting space 222 to facilitate the installation and setup of the second battery module 21 and the second wiring harness.

[0074] In some embodiments, the control module 11 is provided with a third wiring harness extending out of the control module 11. The third wiring harness extends out of the first cabinet 13 through the first inspection port 135 and / or the second inspection port 136. A second wiring harness extends out of the second cabinet 22 through the third inspection port 225 and / or the fourth inspection port 226. The end of the second wiring harness extending out of the second cabinet 22 is connected to the end of the third wiring harness extending out of the first cabinet 13 to electrically connect the control module 11 to the second battery module 21.

[0075] In this embodiment, the control module 11 in the first combination cabinet 1 and each second battery module 21 in the second combination cabinet 2 are connected to the outside of the first combination cabinet 1 and the second combination cabinet 2. There is no need to reserve installation positions inside the first combination cabinet 1 and the second combination cabinet 2, which can greatly improve the space utilization and increase the energy density of the energy storage system. Moreover, by connecting the end of the second wiring harness extending out of the second cabinet frame 22 to the end of the third wiring harness extending out of the first cabinet frame 13, there is no need to disassemble the first combination cabinet 1 and the second combination cabinet 2. The connection is simple and convenient, and the maintainability is high.

[0076] In some embodiments, the first cabinet 13 and the second cabinet 22 have the same structure, which can reduce design costs and improve versatility.

[0077] In some embodiments, the control module 11 includes a first housing, the first battery module 12 includes a second housing, and the second battery module 21 includes a third housing. The first housing, the second housing, and the third housing have the same structural dimensions. Therefore, the control module 11, the first battery module 12, and the second battery module 21 can be interchanged. That is, one control module 11 and multiple first battery modules 12 can be installed in the same rack, or multiple second battery modules 21 can be installed in the same rack, giving the energy storage system a high degree of flexibility.

[0078] In some embodiments, the first cabinet 13 and the second cabinet 22 are frame structures. Frame structures have the advantages of simple and stable structure, as well as light weight, which facilitates transportation. The frame structure allows the control module 11, the first battery module 12 and the second battery module 21 to have more contact with air, which helps to dissipate heat from the control module 11, the first battery module 12 and the second battery module 21.

[0079] In some embodiments, the two first side panels 133 and the two second side panels 134 of the first cabinet 13 form the bottom of a cuboid, and the four first side columns 137 and the four first crossbeams 138 together with the bottom of the cuboid form a larger cuboid frame structure. The control module 11 and the first battery module 12 are arranged in the larger cuboid frame structure.

[0080] To facilitate the hoisting of the first cabinet frame 13, a first hanging rod 139 is also provided at the upper end of the first cabinet frame 13.

[0081] In some embodiments, the first cabinet 13 further includes a first base plate 140, the first base plate 140, two first side plates 133 and two second side plates 134 are arranged to form a second installation space 132, and the first base plate 140 can protect the first wire harness and the third wire harness located in the second installation space 132.

[0082] To facilitate and neatly arrange the first and third wire harnesses, a wire harness fixing structure 141 is also provided on the first base plate 140. The wire harness fixing structure 141 can adopt conventional technology, which will not be described in detail in this embodiment.

[0083] In some embodiments, the two third side plates 223 and the two fourth side plates 224 in the second cabinet 22 form the bottom of a cuboid, and the four second side columns 227 and the four second crossbeams 228 together with the bottom of the cuboid form a larger cuboid frame structure, in which the second battery module 21 is disposed.

[0084] In some embodiments, the second cabinet 22 further includes a second base plate, the second base plate, two third side plates 223 and two fourth side plates 224 are arranged to form a fourth placement space 222, and the second base plate can protect the second wire harness located in the fourth placement space 222.

[0085] In some embodiments, when the first combination cabinet 1 and the second combination cabinet 2 are combined, the first cabinet frame 13 and the second cabinet frame 22 are connected. The first cabinet frame 13 and the second cabinet frame 22 can be connected in an appropriate way according to the usage requirements, such as by means of bridge lock structure, bolts and other fasteners.

[0086] In some embodiments, the first cabinet 1 and the second cabinet 2 are arranged in a row. This makes the energy storage system suitable for use in long and narrow sites. The first cabinet 1 and the second cabinet 2 can face the same side to facilitate operation and monitoring of both cabinets.

[0087] In other embodiments, the back of the first combined cabinet 1 is connected to the back of the second combined cabinet 2. Thus, the energy storage system is suitable for use in square-shaped storage stations.

[0088] The energy storage system of this application embodiment can be flexibly designed according to the site terrain to adapt to different usage scenarios.

[0089] In some embodiments, the first combined cabinet 1 is provided with a control module 11 and two or three first battery modules 12. Thus, the first combined cabinet 1 forms a 1+2 (1+2 refers to one control module 11 and two first battery modules 12) or 1+3 (1+3 refers to one control module 11 and three first battery modules 12) energy storage system, and the second combined cabinet 2 is a small-capacity demand system to meet the small-capacity needs of customers.

[0090] In some embodiments, the second combination cabinet 2 is provided with two or three second battery modules 21. Thus, the second combination cabinet 2 forms an energy storage system of 0+2 (0+2 means no control module 11 is provided and two first battery modules 12 are provided) or 0+3 (0+3 means no control module 11 is provided and three first battery modules 12 are provided). The second combination cabinet 2 is a pure battery system with appropriate capacity. When combined with the first combination cabinet 1, it can form energy storage systems with various capacity gradients to meet the diverse usage needs of customers.

[0091] In some embodiments, the control module 11 is a control cabinet; and / or, the first battery module 12 is a first energy storage cabinet; and / or, the second battery module 21 is a second energy storage cabinet.

[0092] In this embodiment of the application, the control cabinet, the first energy storage cabinet and the second energy storage cabinet each have a cabinet body. The cabinet body of the control cabinet can protect the components inside the control cabinet, the cabinet body of the first energy storage cabinet can protect the components inside the first energy storage cabinet, and the cabinet body of the second energy storage cabinet can protect the components inside the second energy storage cabinet. In this way, the control cabinet, the first energy storage cabinet and the second energy storage cabinet themselves are not easily damaged.

[0093] In some embodiments, the first combination cabinet 1 includes a first fire-fighting device, which is connected to the control module 11 and the first battery module 12 respectively; and / or, the second combination cabinet 2 includes a second fire-fighting device, which is connected to the control module 11 and the second battery module 21 respectively.

[0094] In this embodiment, the first combined cabinet 1 further includes a first fire-fighting device, enabling the first combined cabinet 1 to have independent power distribution and fire-fighting system functions. The first combined cabinet 1 can be independently debugged, shipped, and connected to the grid. The second fire-fighting device in the second combined cabinet 2 is connected to the control module 11 and the second battery module 21 respectively. After the first combined cabinet 1 and the second combined cabinet 2 are combined, the first combined cabinet 1 and the second combined cabinet 2 can be connected to the grid together to meet the corresponding fire-fighting requirements.

[0095] It is understood that the first and second fire-fighting equipment are conventional equipment, including fire cylinder cabinets, fire detection modules, fire alarm lights, fire controllers, fire manual buttons, fire pipes and other fire-fighting components. This application embodiment does not specifically limit these components, as long as they meet the usage requirements.

[0096] In some embodiments, the first fire-fighting equipment includes a first fire pipe 31, which is connected to a first hanging rod 139. The second fire-fighting equipment includes a second fire pipe 32, which is connected to a second hanging rod 229. When the first combination cabinet 1 and the second combination cabinet 2 are combined, the first fire pipe 31 and the second fire pipe 32 are connected.

[0097] In some embodiments, the first combined cabinet 1 includes a control module 11, at least one first battery module 12, and a first fire-fighting device. The first combined cabinet 1 can be independently debugged, shipped, and connected to the grid, thus meeting small-capacity requirements. The second combined cabinet 2 includes at least two second battery modules 21 and a second fire-fighting device. The second combined cabinet 2 is a pure battery system. The combination of the first combined cabinet 1 and the second combined cabinet 2 allows for debugging and grid connection, meeting large-capacity requirements. Therefore, the energy storage system of this application embodiment can form multiple capacity gradients according to small-capacity and large-capacity requirements, flexibly responding to different capacity needs of different customers, thus offering greater flexibility.

[0098] Because the first combination cabinet 1 has multiple combination methods, for example, Figure 1 The diagram shows the structure of the first combination cabinet 1, which includes a control module 11 and two first battery modules 12. Figure 2 A schematic diagram of the structure of the first combination cabinet 1, including a control module 11 and three first battery modules 12, is shown. The second combination cabinet 2 also has multiple combination methods, for example, Figure 3 A schematic diagram of the structure of the second combination cabinet 2, which includes three second battery modules 21, is shown. Figure 10 A schematic diagram of the second combination cabinet 2, comprising two second battery modules 21, is shown. Therefore, the energy storage system has various capacities and various combination methods, for example, Figure 8 The diagram shows a structural schematic of an energy storage system comprising a control module 11, two first battery modules 12 and three second battery modules 21, and a first combination cabinet 1 and a second combination cabinet 2 arranged in a row. Figure 9 The diagram shows a structural schematic of an energy storage system including a control module 11, three first battery modules 12 and three second battery modules 21, and a first combination cabinet 1 and a second combination cabinet 2 arranged in a row. Figure 10The diagram shows an energy storage system comprising a control module 11, two first battery modules 12 and two second battery modules 21, and a first combination cabinet 1 and a second combination cabinet 2 arranged in a row, wherein the second combination cabinet 2 has a space for installing a second battery module 21. Figure 11 The diagram shows a structural schematic of an energy storage system including a control module 11, three first battery modules 12 and three second battery modules 21, and the back of the first combination cabinet 1 connected to the back of the second combination cabinet 2. Figure 12 The diagram shows a structural schematic of an energy storage system including a control module 11, two first battery modules 12 and three second battery modules 21, and the back of the first combination cabinet 1 connected to the back of the second combination cabinet 2. Figure 13 The diagram shows an energy storage system comprising a control module 11, two first battery modules 12 and two second battery modules 21, and a structural diagram showing the back of the first combination cabinet 1 connected to the back of the second combination cabinet 2. The second combination cabinet 2 has a space for installing one second battery module 21. Figure 14 The diagram shows an energy storage system comprising a control module 11, two first battery modules 12 and two second battery modules 21, and a first combination cabinet 1 and a second combination cabinet 2 arranged in a row. The first combination cabinet 1 has a space for installing one first battery module 12, and the second combination cabinet 2 has a space for installing one second battery module 21. The two spaces are arranged adjacent to each other.

[0099] In the above examples, the energy storage system forms structures of one control module 11 + two battery modules 12, one control module 11 + three battery modules 12, one control module 11 + four battery modules 12, one control module 11 + five battery modules 12, and one control module 11 + six battery modules 12, respectively, to meet different customer capacity requirements. It is understood that the above examples are merely descriptions for ease of understanding, and this application does not specifically limit the number of control modules 11 and battery modules 12 in the energy storage system. For example, two control modules 11 and eight battery modules 12 can also be used.

[0100] In this embodiment of the energy storage system, the control module 11, the first battery module 12, the first wiring harness, and the third wiring harness are installed and fixed to form a first combined cabinet 1. The second battery module 21 and the second wiring harness are installed and fixed to form a second combined cabinet 2. After arriving at the site, the third wiring harness and the second wiring harness are connected. The cable connection between the cabinets can be solved outside the energy storage system, eliminating the need for pre-installation inside the energy storage system, greatly improving space utilization and increasing system energy density. If the wiring harness malfunctions, it can be replaced or maintained through the corresponding inspection port.

[0101] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0102] The various embodiments in this specification are described in a related manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0103] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.

Claims

1. An energy storage system, characterized in that, include, The first combination cabinet (1) includes a control module (11) and at least one first battery module (12), wherein the control module (11) is electrically connected to all the first battery modules (12) to control the operation of the first battery modules (12).

2. The energy storage system according to claim 1, characterized in that, The first combination cabinet (1) includes a first cabinet frame (13), the first cabinet frame (13) is provided with a first placement space (131) and a second placement space (132), and the control module (11) and the first battery module (12) are arranged in the first placement space (131); The first combination cabinet (1) also includes a first wiring harness (14), which electrically connects the control module (11) and the first battery module (12), and the first wiring harness (14) is disposed in the second placement space (132).

3. The energy storage system according to claim 2, characterized in that, The first cabinet (13) further includes two first side panels (133) and two second side panels (134). The two first side panels (133) are located at both ends of the first cabinet (13) in the first direction (X), and the two second side panels (134) are located at both ends of the first cabinet (13) in the second direction (Y). The two first side panels (133) and the two second side panels (134) enclose the second placement space (132). The first side plate (133) is provided with a first inspection port (135) communicating with the second installation space (132), and / or the second side plate (134) is provided with a second inspection port (136) communicating with the second installation space (132).

4. The energy storage system according to claim 2, characterized in that, The first placement space (131) is located above the second placement space (132).

5. The energy storage system according to claim 1, characterized in that, The energy storage system also includes a second combination cabinet (2), which includes at least two second battery modules (21); The first combination cabinet (1) is connected to the second combination cabinet (2), and the control module (11) is also electrically connected to all the second battery modules (21). The control module (11) controls the second battery modules (21) to work.

6. The energy storage system according to claim 5, characterized in that, The second combination cabinet (2) includes a second cabinet frame (22), the second cabinet frame (22) is provided with a third placement space (221) and a fourth placement space (222), and the second battery module (21) is arranged in the third placement space (221); The second battery module (21) is provided with a second wiring harness extending out of the second battery module (21), and the second wiring harness is disposed in the fourth placement space (222).

7. The energy storage system according to claim 6, characterized in that, The second cabinet (22) also includes two third side panels (223) and two fourth side panels (224). The two third side panels (223) are located at both ends of the second cabinet (22) in the first direction (X), and the two fourth side panels (224) are located at both ends of the second cabinet (22) in the second direction (Y). The two third side panels (223) and the two fourth side panels (224) enclose the fourth placement space (222). The third side plate (223) is provided with a third inspection port (225) communicating with the fourth installation space (222), and / or the fourth side plate (224) is provided with a fourth inspection port (226) communicating with the fourth installation space (222).

8. The energy storage system according to claim 7, characterized in that, The first combination cabinet (1) further includes a first cabinet frame (13), the first cabinet frame (13) includes a first inspection port (135) and a second inspection port (136), the control module (11) is provided with a third wiring harness extending out of the control module (11), the third wiring harness passes through the first inspection port (135) and / or the second inspection port (136) and extends out of the first cabinet frame (13); The second wiring harness extends out of the second cabinet (22) through the third access port (225) and / or the fourth access port (226), and the end of the second wiring harness extending out of the second cabinet (22) is connected to the end of the third wiring harness extending out of the first cabinet (13) to electrically connect the control module (11) to the second battery module (21).

9. The energy storage system according to claim 8, characterized in that, Both the first cabinet frame (13) and the second cabinet frame (22) are frame structures.

10. The energy storage system according to claim 5, characterized in that, The control module (11) includes a first housing, the first battery module (12) includes a second housing, and the second battery module (21) includes a third housing. The first housing, the second housing, and the third housing have the same structural dimensions.

11. The energy storage system according to claim 5, characterized in that, The first combination cabinet (1) and the second combination cabinet (2) are arranged in a row.

12. The energy storage system according to claim 5, characterized in that, The back of the first combination cabinet (1) is connected to the back of the second combination cabinet (2).

13. The energy storage system according to claim 5, characterized in that, The first combination cabinet (1) is provided with one control module (11) and two or three first battery modules (12).

14. The energy storage system according to claim 5, characterized in that, The second combination cabinet (2) is provided with two or three second battery modules (21).

15. The energy storage system according to claim 5, characterized in that, The control module (11) is a control cabinet; and / or, The first battery module (12) is the first energy storage cabinet; and / or, The second battery module (21) is the second energy storage cabinet.

16. The energy storage system according to claim 5, characterized in that, The first combination cabinet (1) includes a first fire-fighting device, which is connected to the control module (11) and the first battery module (12) respectively; and / or, The second combination cabinet (2) includes a second fire-fighting device, which is connected to the control module (11) and the second battery module (21) respectively.

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