Cabinet body matching structure, comprehensive cabinet and energy storage system

Abstract

The invention relates to the technical field of energy storage, and discloses a cabinet matching structure, a comprehensive cabinet and an energy storage system. The cabinet body matching structure comprises a first cabinet body, a supporting structure and a second cabinet body. The first cabinet body is sequentially provided with a first accommodating space, a second accommodating space and a third accommodating space along a first direction, the first accommodating space forms an uninterruptible power supply placing area, the second accommodating space forms a power distribution assembly placing area, the third accommodating space forms a confluence assembly placing area, and the first direction is parallel to the height direction of the first cabinet body. The supporting structure comprises a first supporting piece and a second supporting piece which are oppositely arranged in the first containing space. The second cabinet body is located in the first containing space and abuts against the first supporting piece and the second supporting piece, and a plug connector is arranged on the side, close to the supporting structure, of the second cabinet body. According to the cabinet body matching structure, the integrated cabinet and the energy storage system provided by the invention, the cabinet body matching structure can be simplified, and the matching convenience between the cabinet bodies is ensured.

Description

Cross-references to related applications

[0001] This application is a divisional application of Chinese invention patent application filed on August 20, 2025, with application number 202511175955.5 and invention title "Cabinet Coordination Structure, Integrated Cabinet and Energy Storage System". Technical Field

[0002] This application relates to the field of energy storage technology, and in particular to a cabinet assembly structure, integrated cabinet and energy storage system. Background Technology

[0003] With the continuous development of energy storage technology, the application of energy storage systems is becoming increasingly widespread. Energy storage systems are equipped with integrated cabinets, which can output electrical energy to the outside world using battery packs. Simultaneously, the integrated cabinets can also stabilize the electrical energy generated by the power generation device before outputting it to the outside world, and charge the battery packs.

[0004] The integrated cabinet contains an uninterruptible power supply (UPS), which is located inside an energy storage cabinet. When arranging the integrated cabinet, the energy storage cabinet needs to be installed inside. How to design the cooperation structure between different cabinets affects the production cost and the ease of cooperation between the cabinets. Therefore, how to simplify the cooperation structure between the cabinets and ensure the ease of cooperation between the cabinets is an important issue. Summary of the Invention

[0005] The purpose of this application is to provide a cabinet assembly structure, an integrated cabinet, and an energy storage system, which can simplify the cabinet assembly structure and ensure the ease of assembly between cabinets.

[0006] To address the aforementioned technical problems, this application provides a cabinet fitting structure, comprising a first cabinet, a support structure, and a second cabinet. The first cabinet has a first accommodating space, a second accommodating space, and a third accommodating space arranged sequentially along a first direction. The first accommodating space forms an uninterruptible power supply (UPS) placement area, the second accommodating space forms a power distribution component placement area, and the third accommodating space forms a busbar component placement area. The first direction is parallel to the height direction of the first cabinet. The support structure includes a first support member and a second support member disposed opposite each other within the first accommodating space. The second cabinet is located within the first accommodating space, abutting against the first and second support members. A connector is provided on the side of the second cabinet closest to the support structure, and the connector forms a connector hole on one side of the second cabinet. The second cabinet is used to install the UPS.

[0007] This application also provides a modular cabinet, which includes the aforementioned cabinet assembly structure, an uninterruptible power supply (UPS), power distribution components, and a busbar assembly. The UPS is housed within a second cabinet. The power distribution components are located in the power distribution component placement area of ​​the first cabinet. The busbar assembly is located in the busbar assembly placement area of ​​the first cabinet.

[0008] The embodiments of this application also provide an energy storage system, which includes the integrated cabinet described above.

[0009] The cabinet assembly structure, integrated cabinet, and energy storage system provided in this application include a support structure within the accommodating space of the first cabinet of the integrated cabinet. This support structure comprises multiple support members that support the uninterruptible power supply cabinet, i.e., the second cabinet. The support structure can create a reserved space at the bottom of the second cabinet. A connector is provided on the side of the second cabinet near the support structure. When the second cabinet abuts against the support structure, the connector is located within the reserved space. The connector can form a insertion hole at the bottom of the second cabinet, allowing forklifts to insert for handling, thus improving the convenience of cabinet assembly.

[0010] In some embodiments, the first support member and the second support member include a first plate and a second plate arranged at one end at an angle, and the other ends of both the first plate and the second plate are connected to the first cabinet. The first plate is used to support the second cabinet. In this way, the different plates arranged at an angle cooperate with each other to achieve a supporting function, simplifying the structure of the support member.

[0011] In some implementations, the angle between the first plate and the second plate is 15° to 25°. This allows for a reduction in space usage while ensuring support strength by making the angle between the different plates acute.

[0012] In some embodiments, the first support member and the second support member further include a limiting portion connected to the first plate, the limiting portion extending from the edge of the first plate and abutting against one side of the second cabinet. Thus, by providing a limiting portion at the edge of the first plate, the position of the second cabinet within the accommodating space can be restricted.

[0013] In some embodiments, the first support member and the second support member further include a first extension and a second extension. The first extension bends and extends from the edge of the first plate and abuts against the first cabinet, and the second extension bends and extends from the edge of the second plate and abuts against the first cabinet. In this way, by providing extensions at the edges of the plates, the mating area between the support member and the first cabinet can be ensured, thereby ensuring the fixation effect of the support member on the first cabinet.

[0014] In some embodiments, the first cabinet is provided with a first limiting member and a second limiting member spaced apart along a second direction. The first limiting member and the second limiting member are located on both sides of the second cabinet and abut against the second cabinet, with the second direction perpendicular to the first direction. In this way, by setting the limiting members inside the first cabinet, the position of the second cabinet can be restricted, preventing the second cabinet from easily moving.

[0015] In some embodiments, both the first and second limiting members include a first segment and a second segment located on the same plane, and a third segment connecting the first and second segments. At least a portion of the third segment is located on a different plane from the first segment. The first and second segments are connected to the first cabinet, and at least a portion of the third segment abuts against the second cabinet. In this way, the difficulty of mating can be reduced by forming a protrusion on the limiting member.

[0016] In some implementations, the maximum distance between the third segment and the first segment in the second direction is 5 mm to 30 mm.

[0017] In some embodiments, there are multiple first and second limiting members, and the multiple first and multiple second limiting members are arranged sequentially along a first direction. In this way, by increasing the number of limiting members, it can be ensured that the second cabinet is limited at multiple different positions.

[0018] In some embodiments, the cabinet mating structure further includes a connecting component, which comprises a first connector and a second connector spaced apart in a first direction. Both the first connector and the second connector connect the first cabinet and the second cabinet. Thus, multiple connectors at different positions can be used to connect the first cabinet and the second cabinet.

[0019] In some embodiments, the first connector is provided with a first mounting hole and a second mounting hole located on the same plane. The first mounting hole is used for a first fastener to pass through and connect to the first cabinet, and the second mounting hole is used for a second fastener to pass through and connect to the second cabinet. In this way, the connection structure of the first connector can be simplified by providing different mounting holes on the first connector.

[0020] In some embodiments, the second connector includes a first mating portion and a second mating portion connected together. The first mating portion abuts against and is connected to the first cabinet, and the second mating portion abuts against and is connected to the second cabinet. This allows for connection between the second connector and the cabinet by forming a mating portion, ensuring a suitable mating area and improving connection stability.

[0021] In some embodiments, the second connector further includes an enclosing portion that connects to the first fitting portion and encloses it to form a hollow area. This enclosing portion can be used to create a handle, facilitating the pulling of the second cabinet. Attached Figure Description

[0022] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0023] Figure 1 This is a schematic diagram of the cabinet assembly structure in some embodiments of the integrated cabinet provided in this application; Figure 2 yes Figure 1 Enlarged structural diagram at point A; Figure 3 yes Figure 1 Enlarged structural diagram at point B; Figure 4 This is a schematic diagram of the cabinet assembly structure of the integrated cabinet provided in some embodiments of this application from another perspective; Figure 5 yes Figure 4 Enlarged structural diagram at point C; Figure 6 This is a schematic diagram of the structure of the connector in the integrated cabinet provided in some embodiments of this application; Figure 7 This is a schematic diagram of the cabinet structure in the integrated cabinet provided in some embodiments of this application; Figure 8 This is a structural schematic diagram of the first support member in the integrated cabinet provided in some embodiments of this application; Figure 9 This is a structural schematic diagram of the second support member in the integrated cabinet provided in some embodiments of this application; Figure 10 This is a schematic diagram of the structure of the first limiting member in the integrated cabinet provided in some embodiments of this application; Figure 11 This is a schematic diagram of the structure of the first connector in the integrated cabinet provided in some embodiments of this application; Figure 12 This is a schematic diagram of the structure of the second connector in the integrated cabinet provided in some embodiments of this application; Figure 13 This is a schematic diagram of the cabinet assembly structure in the integrated cabinet provided in some embodiments of this application. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the various embodiments of this application will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been presented in the various embodiments of this application to enable readers to better understand this application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in this application can be implemented. The division of the various embodiments below is for the convenience of description and should not constitute any limitation on the specific implementation of this application. The various embodiments can be combined with and referenced by each other without contradiction.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0026] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0027] The integrated control cabinet is a widely used electrified integrated cabinet in energy storage systems. It is typically divided into multiple zones. For example, a currently used 6 MW integrated control cabinet is separated into two zones by partitions: a lower DC zone and an upper AC zone. The DC zone primarily serves as a DC busbar, where the positive and negative leads from the high-voltage box in the energy storage system converge via four busbars. A mounting plate is movably installed inside the integrated control cabinet. This plate contains DC fuses and DC surge protection components. The mounting plate can be opened using a lock and handle, allowing it to rotate and remove the fuses. In the AC zone above the integrated control cabinet, an UPS (Uninterruptible Power Supply) is installed. The UPS cabinet has a pull-out rail system at the bottom. This design is not only structurally complex but also requires high precision during assembly, making it unsuitable for coordinating different cabinets.

[0028] To simplify the cabinet assembly structure and improve the convenience of cabinet assembly, some embodiments of this application provide a cabinet assembly structure. This structure includes support members within the accommodating space of the integrated cabinet to support the uninterruptible power supply (UPS) cabinet. Simultaneously, insertion holes are formed at the bottom of the UPS cabinet, allowing forklifts or other handling equipment to insert their forks for easy transport of the UPS. During cabinet assembly, the UPS can be easily installed into the integrated cabinet's accommodating space using a forklift, ensuring ease of assembly. Furthermore, when it is necessary to remove the UPS from the integrated cabinet's accommodating space, a forklift can also be used to move it out.

[0029] The following is combined Figures 1 to 13 This application describes the cabinet assembly structure provided in some embodiments.

[0030] like Figures 1 to 13 As shown, some embodiments of this application provide a cabinet assembly structure including a first cabinet 11, a supporting structure, and a second cabinet 14. The first cabinet 11 is along a first direction ( Figure 1 (As indicated by the middle arrow P) are arranged sequentially a first accommodating space 101, a second accommodating space 102, and a third accommodating space 103. The first accommodating space 101 forms an uninterruptible power supply (UPS) placement area, the second accommodating space 102 forms a power distribution component placement area, and the third accommodating space 103 forms a busbar component placement area. The supporting structure includes a first support member 12 and a second support member 13 disposed opposite to each other within the first accommodating space 101. A second cabinet 14 is located within the first accommodating space 101, and the second cabinet 14 abuts against the first support member 12 and the second support member 13. A connector 141 is provided on the side of the second cabinet 14 closest to the supporting structure, and the connector 141 forms a connector hole 142 on one side of the second cabinet 14. The second cabinet 14 is used to install the UPS.

[0031] The first cabinet 11 is the main cabinet of the integrated cabinet. Different storage spaces are formed within the first cabinet 11 to house the uninterruptible power supply (UPS), power distribution components, and busbar components. These different storage spaces can be separated by partitions. The first cabinet 11 can adopt a frame structure, and the storage spaces can be enclosed by cabinet panels. The first direction is the vertically downward direction when the first cabinet 11 is in use, that is, the first direction is parallel to the height direction of the first cabinet 11. The first storage space 101 is located in the upper region of the first cabinet 11, the second storage space 102 is located in the middle of the first cabinet 11, and the third storage space 103 is located in the lower region of the first cabinet 11.

[0032] A support structure is disposed within the first receiving space 101 of the first cabinet 11. The support structure includes a first support member 12 and a second support member 13 spaced apart. The support structure supports the second cabinet 14, ensuring that the bottom of the second cabinet 14 remains spaced from the inner wall of the first cabinet 11 corresponding to the first receiving space 101. The first support member 12 and the second support member 13 can be connected and fixed to the first cabinet 11 to ensure stability during support.

[0033] The second cabinet 14 is a cabinet for installing an uninterruptible power supply (UPS). The second cabinet 14 is placed within the first receiving space 101 of the first cabinet 11. A connector 141 is provided at the bottom of the second cabinet 14, forming a connector hole 142. The connector hole 142 can be a blind hole or a through hole provided on the connector 141, or a groove 1411 provided on the connector 141. Figure 6 As shown in the diagram, the bottom of the second cabinet 14 closes the opening at the top of the groove 1411, thus forming a plug-in hole 142. When the second cabinet 14 is engaged with the first cabinet 11, the bottom of the second cabinet 14 abuts against the first support member 12 and the second support member 13 of the support structure, and the plug-in member 141 is located within the space formed by the separation of the support structure. The plug-in hole 142 formed at the bottom of the second cabinet 14 allows for the insertion of forks, thereby facilitating the handling of the second cabinet 14 and enabling the uninterruptible power supply cabinet to be assembled or removed using a forklift.

[0034] The cabinet assembly structure provided in some embodiments of this application includes a support structure within the accommodating space of the first cabinet 11 of the integrated cabinet. The support structure includes multiple support members that support the uninterruptible power supply cabinet, i.e., the second cabinet 14. The support structure can form a reserved space at the bottom of the second cabinet 14. A connector 141 is provided on the side of the second cabinet 14 near the support structure. When the second cabinet 14 abuts against the support structure, the connector 141 is located within the reserved space. The connector 141 can form a connector hole 142 at the bottom of the second cabinet 14, allowing forklifts to be inserted for handling the second cabinet 14, thus improving the convenience of cabinet assembly.

[0035] In some embodiments, the first support member 12 and the second support member 13 include a first plate 121 and a second plate 122 with one end set at an angle, and the other end of the first plate 121 and the second plate 122 are both connected to the first cabinet 11. The first plate 121 is used to support the second cabinet 14.

[0036] In other words, the support components consist of different plates with included angles between them. Each plate is connected to the first cabinet 11 to ensure the connection strength between the support components and the first cabinet 11. The first plate 121 serves to support the second plate 122, and the combination of the second plate 122 and the first plate 121 ensures the overall structural strength of the support components. Different support components are positioned adjacent to different sides of the first cabinet 11, forming a reserved space between the first support component 12 and the second support component 13 to accommodate the connector 141 at the bottom of the second cabinet 14. The first plate 121 and the second plate 122 of the different support components can be integrally molded to ensure structural strength. In practice, the first plate 121 can be provided with wiring holes to allow connecting cables inside the integrated cabinet to pass through.

[0037] In addition, the included angle between the first plate 121 and the second plate 122 can be 15° to 25°.

[0038] The angle between the first plate 121 and the second plate 122 is an acute angle, which can reduce space occupation while ensuring the supporting strength of the support component. Figure 8 and Figure 9 As shown, both the first support member 12 and the second support member 13 are formed by a first plate 121 and a second plate 122 with acute angles. The first plate 121 is located on a plane perpendicular to the first direction, and the second plate 122 is inclined relative to the first plate 121. The end of the second plate 122 that is separated from the first plate 121 is connected to the first cabinet 11. To facilitate the connection of the support members, cabinet panels can be provided on both sides of the first cabinet 11, and the support members can be fixed to the cabinet panels. In practice, the included angle between the first plate 121 and the second plate 122 can be 15°, 16°, 17°, 18°, 19°, 20°, 21°, 22°, 23°, 24°, or 25°.

[0039] In some embodiments, the first support member 12 and the second support member 13 may further include a limiting portion 123 connected to the first plate 121, the limiting portion 123 extending from the edge of the first plate 121 and abutting against one side of the second cabinet 14.

[0040] The limiting part 123 is located at the edge of the first plate 121, and can limit the second cabinet 14 at the edge of the first plate 121. The limiting part 123 can be plate-shaped, and can be perpendicular to the first plate 121. Figure 4 and Figure 5As shown, one end of the support member with a limiting part 123 is located at the rear side of the first cabinet 11, and the limiting part 123 abuts against the rear side of the second cabinet 14, which can restrict the insertion position of the second cabinet 14. In practice, the rear side of the integrated cabinet can be enclosed by a decorative panel to close the first accommodating space 101.

[0041] In some embodiments, the first support member 12 and the second support member 13 may further include a first extension 124 and a second extension 125, wherein the first extension 124 extends from the edge of the first plate 121 and abuts against the first cabinet 11, and the second extension 125 extends from the edge of the second plate 122 and abuts against the first cabinet 11.

[0042] In other words, the edges of the different plates of the support member are bent and extended to form extensions, which abut against the first cabinet 11. These extensions ensure the mating area between the support member and the first cabinet 11. In practice, the extensions are provided with through holes, allowing them to be fixed to the first cabinet 11 using screws or other fasteners. The extensions and plates can be integrally formed to ensure the structural strength of the support member itself.

[0043] In practice, multiple rolling elements can be installed on the first plate 121 of different support members, allowing the rolling elements to rotate freely on the first cabinet 11. The rolling elements can be ball bearings or shafts. During the assembly and removal of the second cabinet 14, the rolling of these elements reduces the resistance to its movement. Simultaneously, there is no need to reserve excessive height space for the second cabinet 14, and the second cabinet 14 can be moved within the accommodating space without raising its position.

[0044] Additionally, a transfer platform can be installed at the location of the first cabinet 11 corresponding to the second accommodating space 102. This transfer platform can switch between a working state and a storage state. When the transfer platform is in the working state, the second cabinet 14 can be temporarily placed on it for storage or further relocation. When the transfer platform is in the storage state, it can serve as a door to the second accommodating space 102, allowing for its closure. This simplifies the cabinet structure while enriching its functionality. The transfer platform can be formed using a plate-like component and support rods. The plate-like component can be rotatably connected to the first cabinet 11. When the plate-like component is in a horizontal state, it can be supported by the support rods to form a placement platform. After the support rods are removed, the plate-like component can be retracted to close the front of the second accommodating space 102.

[0045] like Figure 7As shown, the first cabinet 11 may be provided with a first limiting member 15 and a second limiting member 16 spaced apart along a second direction. The first limiting member 15 and the second limiting member 16 are located on both sides of the second cabinet 14 and abut against the second cabinet 14, with the second direction perpendicular to the first direction.

[0046] The second direction is perpendicular to the first direction. The second direction refers to the left-right direction and the width direction of the integrated cabinet during actual use. Different limiting components are located on different sides of the second cabinet 14. Through the cooperation of these different limiting components, the position of the second cabinet 14 in the second direction can be limited, ensuring the stability of the second cabinet 14 within the first accommodating space 101. The limiting components can also limit the movement of the second cabinet 14 on its left and right sides, preventing it from swaying left and right within the accommodating space of the first cabinet 11. In practice, connecting plates 1011 can be installed on the left and right sides of the first cabinet 11. The connecting plates 1011 can be locked to the frame columns of the first cabinet 11 using fasteners, and the limiting components can be locked to the connecting plates 1011 using fasteners.

[0047] In some embodiments, the first limiting member 15 and the second limiting member 16 may each include a first segment 151 and a second segment 152 located on the same plane, and a third segment 153 connecting the first segment 151 and the second segment 152. At least a portion of the third segment 153 is located on a different plane from the first segment 151. The first segment 151 and the second segment 152 are connected to the first cabinet 11, and at least a portion of the third segment 153 abuts against the second cabinet 14.

[0048] In other words, the middle part of the limiting member is convex. The first segment 151 and the second segment 152 near both ends of the limiting member are connected to the first cabinet 11. The first segment 151 and the second segment 152 can be provided with through holes so that the limiting member can be fixed to the first cabinet 11 with fasteners. At least part of the third segment 153 abuts against the second cabinet 14. That is, the third segment 153 can be partially convex or entirely convex. The connection between the second segment 152 and the third segment 153, as well as the connection between the first segment 151 and the third segment 153, can be an inclined transition or a vertical transition. In practice, the third segment 153 can have one or more protrusions. Multiple protrusions can abut against different positions on the second cabinet 14, which can reduce the fitting precision. Meanwhile, the connection between two adjacent protrusions can be located on the same plane as the first segment 151, or it can be connected to the first cabinet 11 by fasteners, so as to form a connection with the first cabinet 11 at more than two positions, ensuring the connection strength between the limiting member and the first cabinet 11.

[0049] In addition, the maximum distance between the third segment 153 and the first segment 151 in the second direction can be 5 mm to 30 mm.

[0050] In other words, the maximum protrusion height of the third segment 153 relative to the first segment 151 can be between 5 mm and 30 mm, for example, 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, or 30 mm. By controlling the protrusion structure of the limiting member within a certain protrusion height range, the fitting clearance between the limiting member and the second cabinet 14 can be reduced while ensuring the strength of the limiting member itself and preventing the limiting member from easily deforming or being damaged.

[0051] In some embodiments, there may be multiple first limiting members 15 and multiple second limiting members 16, and the multiple first limiting members 15 and multiple second limiting members 16 are arranged sequentially along the first direction.

[0052] Multiple different limiting components are arranged at intervals on both sides of the second cabinet 14. Multiple first limiting components 15 can limit movement on one side of the second cabinet 14, and multiple second limiting components 16 can limit movement on the other side of the second cabinet 14. By increasing the number of limiting components, it is possible to ensure that the second cabinet 14 is limited over a larger area, effectively ensuring the stability of the second cabinet 14 when it is fitted with the first cabinet 11. Figure 7 As shown, multiple first limiting members 15 and multiple second limiting members 16 can be respectively set for the top, middle and bottom areas of the first accommodating space 101, thereby playing a limiting role in different areas of the first accommodating space 101. In different areas of the first accommodating space 101, two or more limiting members can be grouped together to play a limiting role in more positions and reduce the difficulty of cooperation with the second cabinet 14.

[0053] In practice, to facilitate the exposure of the second cabinet 14, the side containing the first limiting member 15 or the second limiting member 16 can be configured as a movable structure. This allows the second cabinet 14, located within the first accommodating space 101, to be exposed by moving the side wall of the cabinet. For example, if a cabinet door is provided on the front side of the second cabinet 14, a movable cabinet side wall can be provided on the locked side of the cabinet. This allows the cabinet side wall and the limiting members located on the side wall to move away from the second cabinet 14, thereby facilitating the assembly or removal of the second cabinet 14.

[0054] In some embodiments, the cabinet mating structure may further include a connecting component, which includes a first connector 17 and a second connector 18 spaced apart in a first direction, both of which connect the first cabinet 11 and the second cabinet 14.

[0055] The connecting components can fix the first cabinet 11 and the second cabinet 14 after they are assembled, connecting them into a whole. The first connector 17 and the second connector 18 function as connectors at different positions in the first direction, enabling connection between different cabinets at multiple locations and ensuring effective connection between them. In practice, two or more connectors can be used in the same direction to connect different cabinets.

[0056] like Figure 11 As shown, the first connector 17 may be provided with a first mounting hole 171 and a second mounting hole 172 located on the same plane. The first mounting hole 171 is used for the first fastener to pass through and connect to the first cabinet 11, and the second mounting hole 172 is used for the second fastener to pass through and connect to the second cabinet 14.

[0057] The first connector 17 can be plate-shaped, with the first mounting hole 171 and the second mounting hole 172 located at different positions on the first connector 17. Both the first mounting hole 171 and the second mounting hole 172 can be used for fasteners to pass through, so that the first connector 17 can use multiple fasteners to connect the first cabinet 11 and the second cabinet 14 together. By setting the different mounting holes on the first connector 17 on the same plane, the structure of the first connector 17 can be simplified, thereby reducing the connection difficulty of the first connector 17.

[0058] like Figure 12 As shown, the second connector 18 may include a first fitting part 181 and a second fitting part 182 connected together. The first fitting part 181 abuts against the first cabinet 11 and is connected to the first cabinet 11, and the second fitting part 182 abuts against the second cabinet 14 and is connected to the second cabinet 14.

[0059] The first fitting part 181 and the second fitting part 182 are located at different positions on the second connector 18 and are used to form a connection with different cabinets. Connecting to different cabinets through the fitting parts ensures the mating area between them, thereby ensuring stability during connection. Each fitting part can be plate-shaped, and the connection between different fitting parts can use acute angles, right angles, or obtuse angles for transition. The different fitting parts can adopt a one-piece molded structure to ensure the structural strength of the second connector 18.

[0060] In addition, the second connector 18 may also include an enclosure portion 183, which is connected to the first fitting portion 181 and encloses the first fitting portion 181 to form a hollow area 184.

[0061] The enclosure portion 183 is connected to the first fitting portion 181, and the enclosure portion 183 is configured in a multi-segment bending form or a continuous bending form. The hollow area 184 formed between the enclosure portion 183 and the first fitting portion 181 can be used to form a handle in the enclosure portion 183 so as to apply a pulling force to the second cabinet 14 during the handling of the second cabinet 14.

[0062] like Figure 12 As shown, the first fitting portion 181 and the second fitting portion 182 of the second connector 18 are arranged perpendicularly, and the through holes on the first fitting portion 181 and the through holes on the second fitting portion 182 are offset. The enclosing portion 183 includes an extension and two connecting portions disposed opposite to each other on the extension. The ends of the two connecting portions away from the extension are connected to the second fitting portion 182. The extension and the second fitting portion 182 are kept parallel, and the connecting portions are arranged perpendicularly between the extension and the second fitting portion 182, together enclosing and forming a hollow area 184, so that the enclosing portion 183 can be used as a handle.

[0063] The cabinet assembly structure provided in some embodiments of this application eliminates the original guide rail pull-out assembly structure of the uninterruptible power supply. At the bottom, two bottom brackets, namely plug-in 141, form a plug hole 142 with a closed rear end. The closed rear end can avoid damage to the wire harness. Reinforcing ribs and other structures can also be provided on the bottom brackets.

[0064] The connection assembly may include four connectors, which are connected to the uprights of the cabinet. The upper two connectors only serve a connecting function, while the lower two connectors are also equipped with handles. Bolts that serve a fastening function can be hidden in the handles. Sensors, buttons, and other components may also be installed.

[0065] The left and right sides of the first cabinet 11 are two sets of brackets, namely the first support 12 and the second support 13. The triangular structure of the bracket can strengthen the support strength. The bracket is equipped with limiting components to limit the left and right sides of the uninterruptible power supply cabinet. The bracket and the limiting components can also be equipped with wire holes 126 and cable tie holes 127. Other structures can also replace the function of the wire holes 126.

[0066] like Figures 1 to 5 As shown, the uninterruptible power supply (UPS) cabinet has two hollow bottom supports. These supports are used to insert the forks of a forklift, allowing the UPS located above the first cabinet 11 to be moved. When replacing the UPS, considering its weight, manual handling is impossible; therefore, a forklift can be used to remove the entire UPS. Figure 4 and Figure 5 As shown, the rear ends of the two bottom brackets are closed to avoid damage to the wire harness located behind the bottom brackets. Reinforcing ribs and other structures can also be processed on the bottom brackets.

[0067] like Figure 1 and Figure 3 As shown, four connectors are connected to the uprights of the cabinet. The two upper connectors are only connected to the cabinets of the uninterruptible power supply and the integrated cabinet. The two lower connectors, in addition to connecting the cabinets of the uninterruptible power supply and the integrated cabinet, are also equipped with handles to help pull the uninterruptible power supply outward with a forklift. The bolt holes of the lower connectors can be hidden in the handles. Sensors, buttons and other components can also be installed on the connectors.

[0068] like Figures 7 to 9 As shown, two brackets, or support members, are respectively installed on the left and right sides of the cabinet. Each bracket includes a first extension 124, a first plate 121, a second plate 122, and a second extension 125 connected sequentially from top to bottom. The first extension 124 is perpendicular to the first plate 121, and the included angle between the first plate 121 and the second plate 122 is an acute angle to enhance the support strength for the uninterruptible power supply. The first extension 124 and the second extension 125 are parallel. Figure 9 As shown, the bracket is also provided with a wire hole 126 and a cable tie hole 127. Other structures can be used to replace the function of the cable tie hole 127.

[0069] like Figure 7 As shown, two sets of limiting plates are also provided on the left and right sides of the cabinet, that is, plate-shaped limiting components, to limit the left and right directions of the uninterruptible power supply. Each set of limiting plates includes multiple limiting plates arranged sequentially from top to bottom on the side plate of the cabinet. At least one limiting plate in each set is located on the first plate 121 of the support.

[0070] In addition, such as Figure 13 As shown, a controller 111 can be installed on the front side of the second cabinet 14 for control purposes. The controller 111 can be integrated into the cabinet door. In practice, cabinet panels or doors can be installed on different sides of the first cabinet 11 to enclose different storage spaces and isolate them from the influence of the external environment.

[0071] Some embodiments of this application also provide a comprehensive cabinet, which includes the aforementioned cabinet assembly structure, an uninterruptible power supply (UPS), power distribution components, and a busbar assembly. The UPS is housed within a second cabinet. The power distribution components are located in the power distribution component placement area of ​​the first cabinet. The busbar assembly is located in the busbar assembly placement area of ​​the first cabinet.

[0072] The DC combiner assembly can be used to connect to the high-voltage box of the battery cluster inside the container, and then output DC power to the energy storage converter through the AC / DC power distribution assembly. The AC / DC power distribution assembly also outputs AC power, which can be connected to an external power source and electrical equipment inside the container. The AC / DC power distribution assembly includes an AC control section and a DC distribution section. The AC control section connects to the external power source and electrical equipment inside the container. The DC distribution section connects to the energy storage converter.

[0073] The integrated control unit combines AC control and DC power distribution components, saving space in the width direction of the container when installed inside. Furthermore, the DC combiner assembly is located on one side of the AC / DC power distribution assembly, further saving space in the width direction of the container.

[0074] Some embodiments of this application also provide an energy storage system, which includes the integrated cabinet described above.

[0075] The energy storage system includes a container housing a liquid-cooled chiller unit. An integrated control unit is also housed within the container, positioned side-by-side with the chiller unit across the width of the container. This integrated control unit combines AC and DC power distribution components, meeting electrical control requirements. The side-by-side placement of the integrated control unit and chiller unit within the container saves space in the width direction. Furthermore, the DC combiner assembly is located to one side of the AC / DC power distribution assembly, resulting in a more compact integrated control unit across its width, further conserving space within the container. This allows for a larger design ceiling for the chiller unit, ultimately contributing to increased battery energy density within the container.

[0076] Those skilled in the art will understand that the above embodiments are specific implementations of this application, and in practical applications, various changes can be made in form and detail without departing from the spirit and scope of this application.

Claims

1. A cabinet fitting structure characterized by comprising: The utility model relates to a cabinet, and specifically relates to a cabinet with a support structure. The cabinet comprises: a first cabinet body, which is sequentially provided with a first accommodating space, a second accommodating space and a third accommodating space along a first direction, wherein the first direction is parallel to the height direction of the first cabinet body; a support structure arranged in the first accommodating space; a second cabinet body arranged in the first accommodating space and supported by the support structure, wherein the second cabinet body is provided with a plug-in piece on the side close to the support structure, and the plug-in piece forms a plug-in hole on one side of the second cabinet body; 2. The cabinet mating structure of claim 1, wherein, the first cabinet body is provided with a first limiting piece and a second limiting piece spaced apart along a second direction, wherein the first limiting piece and the second limiting piece are arranged on the two sides of the second cabinet body and abut against the second cabinet body, and the second direction is perpendicular to the first direction; the side on which the first limiting piece or the second limiting piece is arranged is provided in a movable structure, and the side of the first cabinet body which is locked is provided with a movable cabinet side wall; when the cabinet side wall moves, the cabinet side wall and the first limiting piece or the second limiting piece arranged on the cabinet side wall move away from the second cabinet body.

3. The cabinet mating structure of claim 2, wherein, The first support piece and the second support piece comprise a first plate body and a second plate body arranged at an angle at one end, the other end of the first plate body and the second plate body is connected with the first cabinet body, and the first plate body is used for bearing the second cabinet body.

4. The cabinet mating structure of claim 2, wherein, The angle between the first plate body and the second plate body is 15° to 25°.

5. The cabinet mating structure of claim 2, wherein, The first support piece and the second support piece further comprise a limiting part connected with the first plate body, the limiting part is bent and extended from the edge of the first plate body, and the limiting part abuts against one side of the second cabinet body.

6. The cabinet mating structure of claim 1, wherein, The first support piece and the second support piece further comprise a first extension part and a second extension part, the first extension part is bent and extended from the edge of the first plate body and abuts against the first cabinet body, and the second extension part is bent and extended from the edge of the second plate body and abuts against the first cabinet body.

7. The cabinet mating structure of claim 6, wherein, The first limiting piece and the second limiting piece each comprise a first segment and a second segment arranged on the same plane, and a third segment connecting the first segment and the second segment, at least part of the third segment is arranged on a different plane from the first segment, the first segment and the second segment are connected with the first cabinet body, and at least part of the third segment abuts against the second cabinet body.

8. The cabinet mating structure of claim 1, wherein, The maximum distance between the third segment and the first segment in the second direction is 5 mm to 30 mm.

9. The cabinet mating structure of claim 1, wherein, The first limiting piece and the second limiting piece are provided in plurality, and the plurality of first limiting pieces and the plurality of second limiting pieces are sequentially arranged along the first direction.

10. The cabinet mating structure of claim 9, wherein, The utility model further comprises a connecting assembly, which comprises a first connecting piece and a second connecting piece arranged at intervals in the first direction, and the first connecting piece and the second connecting piece are connected with the first cabinet body and the second cabinet body. The first connecting piece is provided with a first mounting hole and a second mounting hole arranged on the same plane, the first mounting hole is used for allowing a first fastener to pass through and be connected with the first cabinet body, and the second mounting hole is used for allowing a second fastener to pass through and be connected with the second cabinet body.

11. The cabinet mating structure of claim 9, wherein, The second connecting piece comprises a first fitting part and a second fitting part connected with each other, the first fitting part abuts against and connects with the first cabinet body, and the second fitting part abuts against and connects with the second cabinet body.

12. The cabinet mating structure of claim 11, wherein, The second connecting piece further comprises an enclosing part connected with the first fitting part and enclosing a hollow region with the first fitting part.

13. An integrated cabinet characterized by, The cabinet body matching structure comprises: The cabinet body matching structure of any one of claims 1 to 12; The uninterruptible power supply is arranged in the second cabinet body; The power distribution assembly is arranged in the power distribution assembly placement area of the first cabinet body; The current confluence assembly is arranged in the current confluence assembly placement area of the first cabinet body.

14. An energy storage system characterized by, The integrated cabinet comprises the cabinet body matching structure of claim 13.

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