Combiner cabinet body structure, combiner cabinet, and energy storage container

Abstract

The present application provides a combiner cabinet body structure, a combiner cabinet, and an energy storage container. A housing of the combiner cabinet body structure is provided with a first accommodating cavity and a second accommodating cavity, and the second accommodating cavity is arranged above the first accommodating cavity. The first accommodating cavity is configured to accommodate a direct current assembly, the direct current assembly comprises a busbar group, and the busbar group is configured to be connected to a first wire harness. The second accommodating cavity is configured to accommodate a first alternating current assembly and a communication assembly, and the distance from the busbar group to the bottom surface of the housing is 200-800 mm.

Description

Combiner cabinet structure, combiner cabinet and energy storage container

[0001] This application claims priority to Chinese Patent Application No. 202421847740.4, filed with the Chinese Patent Office on July 31, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of energy storage technology, specifically to a combiner cabinet structure, a combiner cabinet, and an energy storage container. Background Technology

[0003] An energy storage battery system consists of an energy storage battery box, combiner cabinets, a control cabinet, and a PCS (Power Conversion System, energy storage converter). The combiner cabinet is a crucial component of the energy storage battery system. Combiner cabinets can be categorized into AC combiner cabinets, DC combiner cabinets, and AC / DC integrated combiner cabinets based on different application scenarios. AC / DC integrated combiner cabinets include DC components, AC components, and control and communication components. Technical issues

[0004] In the AC / DC integrated combiner cabinet of the relevant technology, DC devices, AC devices and control and communication devices are integrated and installed in the cabinet. The cabinet is large in size, which results in a large space occupied in the electrical compartment of the container, a small space for personnel to operate, and a messy layout of electrical devices, making disassembly, assembly and maintenance inconvenient. Technical solutions

[0005] In a first aspect, this application provides a busbar cabinet structure, including:

[0006] The housing has a first receiving cavity and a second receiving cavity, with the second receiving cavity located above the first receiving cavity. The first receiving cavity is configured to accommodate a DC component, which includes a busbar assembly configured to connect to a first wire harness. The second receiving cavity is configured to accommodate a first AC component and a communication component.

[0007] The distance from the conductor busbar to the bottom surface of the housing is between 200 mm and 800 mm.

[0008] Secondly, this application provides a combiner cabinet, including a DC component, a first AC component, a communication component, and the combiner cabinet structure provided in this application;

[0009] The DC component, the first AC component, and the communication component are respectively installed on the combiner cabinet structure.

[0010] Thirdly, this application provides an energy storage container, including a container body and a combiner cabinet provided in this application; the combiner cabinet is disposed inside the container body. Beneficial effects

[0011] The beneficial effects of the combiner cabinet structure, combiner cabinet, and energy storage container provided in this application are as follows: The combiner cabinet structure includes a shell, the shell is provided with a first receiving cavity and a second receiving cavity, the second receiving cavity is located above the first receiving cavity, the first receiving cavity is configured to accommodate a DC component, the DC component includes a busbar assembly, the busbar assembly is configured to connect a first wiring harness; the second receiving cavity is configured to accommodate a first AC component and a communication component; the distance from the busbar assembly to the bottom surface of the shell is between 200 mm and 800 mm, realizing a reasonable layout of the DC component, the first AC component, and the communication component. This application provides ample operating space by placing the first receiving cavity below the housing and housing the conductive busbar assembly within it. The distance between the conductive busbar assembly and the bottom surface of the housing is between 200 mm and 800 mm, facilitating assembly and maintenance by operators. Furthermore, sufficient space allows the first wiring harness to bend within the first receiving cavity, enabling electrical connection between the harness and the conductive busbar assembly. By providing a second receiving cavity above the first, the DC component, the first AC component, and the communication component can be partitioned, with different types of devices spaced apart, improving the power supply and communication reliability of the combiner cabinet. This also reduces mutual interference between different types of devices, facilitating maintenance and improving the maintainability of the combiner cabinet. Attached Figure Description

[0012] Figure 1 is a schematic diagram of the assembly structure of the junction box structure provided in this application from one perspective;

[0013] Figure 2 is a partial assembly structure diagram of the junction box structure provided in this application;

[0014] Figure 3 is another partial assembly structure diagram of the junction box structure provided in this application;

[0015] Figure 4 is a partial structural schematic diagram of the junction box structure provided in this application from one perspective;

[0016] Figure 5 is a partial structural schematic diagram of the junction box structure provided in this application from another perspective;

[0017] Figure 6 is a partial structural schematic diagram of the junction box structure provided in this application from another perspective;

[0018] Figure 7 is a partial structural schematic diagram of the junction box structure provided in this application from another perspective;

[0019] Figure 8 is a structural schematic diagram of the energy storage container provided in this application.

[0020] Figure label:

[0021] 10. Housing; 101. First side surface; 102. Second side surface; 110. First receiving cavity; 112. Third receiving sub-cavity; 114. Fourth receiving sub-cavity; 1142. First DC mounting area; 1144. Second DC mounting area; 120. Second receiving cavity; 122. First receiving sub-cavity; 1222. First AC mounting area; 1224. Second AC mounting area; 124. Second receiving sub-cavity; 1242. First communication mounting area; 1244. Second communication mounting area; 20. First support member; 30. First 40. Partition; 50. Second support component; 510. Communication component; 520. Controller; 60. Terminal block; 610. First AC component; 620. AC device group; 620. UPS module; 70. Second AC component; 710. Transformer; 80. DC component; 810. Disconnecting switch; 820. Conductor bus group; 822. Conductor bus; 830. Surge protector; 90. First wiring harness; 910. First cable; 100. Combiner cabinet structure; 200. Combiner cabinet; 1000. Energy storage container; 300. Container body. Embodiments of the present invention

[0022] In one embodiment, as shown in Figures 1 to 4 and Figure 6, a junction box structure 100 is provided, including a housing 10. The housing 10 is provided with a first receiving cavity 110 and a second receiving cavity 120. The second receiving cavity 120 is disposed above the first receiving cavity 110. The first receiving cavity 110 is configured to accommodate a DC component 80, which includes a busbar group 820 and is configured to connect a first wiring harness 90. The second receiving cavity 120 is configured to accommodate a first AC component 60 and a communication component 50. The distance from the busbar group 820 to the bottom surface of the housing 10 is between 200 mm and 800 mm.

[0023] The housing 10 can be rectangular in shape and may include multiple side panels. For example, the housing 10 may include a front panel, a rear panel, a left side panel, a right side panel, and a top panel. The front panel, rear panel, left side panel, right side panel, and top panel enclose a receiving cavity, which can be divided into a first receiving cavity 110 and a second receiving cavity 120. It should be noted that the front panel can serve as the panel of a door.

[0024] The first receiving cavity 110 may be disposed adjacent to the bottom surface of the housing 10. A corresponding first bracket is disposed in the first receiving cavity 110. The first bracket can be used to install or support the corresponding DC device in the DC component 80, thereby realizing the DC component 80 being housed in the first receiving cavity 110. The first bracket can also be used to strengthen the first receiving cavity 110.

[0025] The DC component 80 includes a busbar assembly 820, which may consist of at least one busbar. The busbar may be a copper busbar and may be mounted on a first bracket of the first receiving cavity 110. The busbar is used to electrically connect a first wiring harness 90, which may be a power wiring harness. For example, the first wiring harness 90 may consist of at least one first cable, which may be a copper cable.

[0026] By positioning the first receiving cavity 110 below the second receiving cavity 120, and by placing the conductive busbar 820 within the first receiving cavity 110, with the distance between the conductive busbar 820 and the bottom surface of the housing 10 being between 200 mm and 800 mm, the DC component 80 is positioned adjacent to the lower part of the housing 10, providing ample operating space and facilitating the assembly and maintenance of the conductive busbar 820 by operators. Furthermore, when the first wiring harness 90 extends into the first receiving cavity 110, there is sufficient space for bending within the cavity to achieve electrical connection between the first wiring harness 90 and the conductive busbar 820, improving the ease of assembly and disassembly of the first wiring harness 90.

[0027] The second receiving cavity 120 is disposed above the first receiving cavity 110. A corresponding second bracket is disposed within the second receiving cavity 120. The second bracket can be used to install or support corresponding AC devices in the first AC component 60 and corresponding communication devices in the communication component 50, thereby enabling the first AC component 60 and the communication component 50 to be disposed within the second receiving cavity 120. The second bracket can also be used to reinforce the second receiving cavity 120. For example, the first AC component 60 and the communication component 50 are spaced apart within the second receiving cavity 120, ensuring a certain distance between them to avoid signal interference and improve communication control reliability. Furthermore, by dividing the first receiving cavity 110 and the second receiving cavity 120, a partitioned layout is achieved between the DC component 80, the first AC component 60, and the communication component 50, thereby improving the power supply and communication reliability of the combiner cabinet.

[0028] In this embodiment, the second receiving cavity 120 of the housing 10 is disposed above the first receiving cavity 110. The first receiving cavity 110 is configured to accommodate a DC component 80, which includes a conductive busbar 820 connected to a first wire harness 90. The second receiving cavity 120 is configured to accommodate a first AC component 60 and a communication component 50. The distance between the conductive busbar 820 and the bottom surface of the housing 10 is between 200 mm and 800 mm, achieving a reasonable layout for the DC component 80, the first AC component 60, and the communication component 50. By placing the first receiving cavity 110 below the housing 10 and the conductive busbar 820 within the first receiving cavity 110, and setting the distance between the conductive busbar 820 and the bottom surface of the housing 10 to between 200 mm and 800 mm, this application provides ample operating space, facilitating the assembly and maintenance of the conductive busbar 820 by operators. In addition, when the first wire 90 extends into the first receiving cavity 110, there is enough space to bend within the first receiving cavity 110 to achieve electrical connection between the first wire harness 90 and the conductive busbar group 820; by setting a second receiving cavity 120 on the first receiving cavity 110, the DC component 80, the first AC component 60 and the communication component 50 can be partitioned, and different types of devices are spaced a certain distance apart, which improves the power supply and communication reliability of the combiner cabinet; reduces mutual interference between different types of devices, facilitates maintenance and repair, and improves the maintainability of the combiner cabinet.

[0029] In one embodiment, the distance from the conductive busbar 820 to the bottom surface of the housing 10 is between 400 mm and 600 mm, thereby making full use of the space inside the cabinet and providing sufficient operating space in the first receiving cavity 110. This allows operators to insert the first wire harness 90 into the first receiving cavity 110, bend the first wire harness 90, and connect it to the conductive busbar 820, thus achieving an electrical connection between the first wire harness 90 and the conductive busbar 820. This improves the ease of assembly and maintenance of the conductive busbar 820 and the first wire harness 90.

[0030] In one embodiment, at least one side of the housing 10 is provided with a first through hole, which is configured to allow a first wire harness 90 to pass through, so that the first wire harness 90 is bent and connected to the conductive busbar 820.

[0031] For example, the housing 10 can be a cuboid housing, including a front side, a rear side, a left side, a rear side, and a bottom surface. A first through-hole can be provided on at least one of the front side, rear side, left side, rear side, and bottom surface, so that the first wire harness 90 can be inserted into the first through-hole, bent, and then connected to the conductive busbar assembly 820. The size of the first through-hole can be determined according to the diameter of the first wire harness 90. For example, the size of the first through-hole can be set to be slightly larger than the diameter of the first wire harness 90 to prevent dust or other foreign objects from entering the first receiving cavity 110 if the first through-hole is too large, while ensuring the strength of the corresponding side of the housing 10. For example, the installation process of the first wire harness 90 can be as follows: the first wire harness 90 is inserted into the first through hole of the corresponding side (such as the rear side or bottom) of the housing 10, and the first wire harness 90 is bent in the first receiving cavity 110 based on the sufficient space there is, and the bent first wire harness 90 is connected and disposed on the conductive busbar 820 to realize the electrical connection between the first wire harness 90 and the conductive busbar 820.

[0032] In one embodiment, as shown in FIG2, the conductive bus group 820 includes at least two conductive bus groups 822, and the first wire harness 90 includes at least two first cables 910; each first cable 910 passes through a first through hole so that at least two first cables 910 are bent and connected to the corresponding conductive bus group 822.

[0033] The conductive busbar 822 is used to electrically connect the corresponding first cable 910. For example, at least two conductive busbars 822 can be spaced apart within the first receiving cavity 110. The first through hole can be used to allow at least two first cables 910 to pass through, so that the corresponding first cable 910 can be bent after being inserted into the first through hole, and the bent first cable 910 can be connected to the corresponding conductive busbar 822. In one example, the first cable 910 used in the energy storage combiner cabinet has a large diameter and is made of a hard material, making it difficult to bend manually. For example, the first cable 910 is a YJV22 type cable (i.e., a steel-tape armored copper core cable). After inserting the first cable 910 into the first through hole, it is usually necessary to use tools such as rollers to bend the first cable 910. Therefore, by providing sufficient space within the first receiving cavity 110, the operator has enough space to use tools such as rollers to bend the first cable 910 after it passes through the first through hole into the first receiving cavity 110, and then connects the bent first cable 910 to the conductive busbar 822 to achieve electrical connection between the first cable 910 and the corresponding conductive busbar 822, thereby improving the convenience for the operator to assemble the conductive busbar 822 and the first cable 910.

[0034] In one embodiment, as shown in Figures 3, 6 and 7, the second receiving cavity 120 includes a first receiving sub-cavity 122 and a second receiving sub-cavity 124, with the first receiving sub-cavity 122 and the second receiving sub-cavity 124 spaced apart; the first receiving sub-cavity 122 is configured to receive a first AC component 60, and the second receiving cavity 124 is configured to receive a communication component 50.

[0035] The first receiving sub-cavity 122 and the second receiving sub-cavity 124 are spaced apart. The first receiving sub-cavity 122 is used to accommodate the first AC component 60, and the second receiving sub-cavity 124 is used to accommodate the communication component 50. This spacing between the first AC component 60 and the communication component 50 avoids signal interference from the first AC component 60 to the communication component 50, makes reasonable use of the space in the second receiving cavity 120, and improves the reliability of communication. For example, the first receiving sub-cavity 122 may be disposed adjacent to the first side 101 of the housing 10, and the second receiving sub-cavity 124 may be disposed adjacent to the front panel of the housing 10, thereby facilitating the connection between the first AC component 60 and the second AC component 70.

[0036] In one embodiment, as shown in Figures 1, 3, and 7, a first partition 30 is disposed between the first receiving cavity 110 and the second receiving cavity 120; the communication component 50 includes a controller 510 and a terminal block 520; the second receiving sub-cavity 124 includes a first communication mounting area 1242 and a second communication mounting area 1244; the first communication mounting area 1242 is disposed on the first partition 30, and the second communication mounting area 1244 is disposed on the second side 102 of the housing 10, wherein the second side 102 of the housing 10 is adjacent to the first side 101; the first communication mounting area 1242 is configured to mount the controller 510, and the second communication mounting area 1244 is configured to mount the terminal block 520.

[0037] The first partition 30 is disposed within the housing 10, dividing the accommodating cavity of the housing 10 into a first accommodating cavity 110 and a second accommodating cavity 120. The controller 510 may be a BMS (Battery Management System). The terminal block 520 may include power terminals, communication terminals, and control terminals. The power terminals may be 24-volt power terminals. The first side 101 of the housing 10 may be the outer wall of the rear panel of the housing 10, and the second side 102 of the housing 10 may be the inner wall of the left side panel or the inner wall of the right side panel of the housing 10.

[0038] By providing a first communication mounting area 1242 on the first partition 30, the controller 510 is mounted in the first communication mounting area 1242, meaning the first partition 30 supports the controller 510. By providing a second communication mounting area 1244 on the second side 102 of the housing 10, the terminal block 520 is mounted in the second communication mounting area 1244, thereby effectively utilizing the space of the second receiving cavity 124 and facilitating wiring of the terminal block 520. For example, the controller 510 can be mounted in the first communication mounting area 1242 by snap-fit ​​or screw-fit, and the terminal block 520 can be mounted in the second communication mounting area 1244 by snap-fit ​​or screw-fit. The second communication mounting area 1244 can be provided with a corresponding bracket, and the terminal block 520 can be mounted on the corresponding bracket in the second communication mounting area 1244 by snap-fit ​​or screw-fit.

[0039] For example, the second communication installation area 1244 is located adjacent to the front panel of the housing 10, thereby facilitating the operator to install or remove the terminal block 520 after opening the front panel (or door).

[0040] In one embodiment, as shown in Figures 1, 3, and 6, the first receiving cavity 122 is provided with a first AC mounting area 1222 and a second AC mounting area 1224; the first AC assembly 60 includes an AC device group 610 and at least two UPS modules 620; the first AC mounting area 1222 is located within the first communication mounting area 1242, and the first AC mounting area 1222 is configured to mount the AC device group 610; the second AC mounting area 1224 is located adjacent to the first side 101 of the housing 10, and the second AC mounting area 1224 is configured to mount the UPS modules 620.

[0041] The AC device group 610 may include a main incoming circuit breaker, a miniature circuit breaker, a second terminal block 520, an AC / DC module, intermediate relays, a distributor, and an AC surge protection circuit. The second terminal block 520 may include copper busbars, terminals for connecting to a high-voltage box, terminals for connecting to fire-fighting equipment, and terminals for connecting to a disconnector switch 810. The UPS module 620 may include a UPS main unit and a battery. The UPS main unit and battery may be integrated into a single module or may be independent modules.

[0042] By setting a first AC mounting area 1222 on the first communication mounting area 1242, the AC device group 610 is installed in the first AC mounting area 1222, thereby spacing the AC device group 610 from the controller 510; by setting a second AC mounting area 1224 adjacent to the first side 101 of the housing 10, the second AC mounting area 1224 is spaced apart from the first communication mounting area 1242, and the second AC mounting area 1224 is spaced apart from the second communication mounting area 1244, at least one UPS module 620 is installed in the second AC mounting area 1224. Within the installation area 1224, the UPS module 620 is spaced apart from the controller 510 and the terminal block 520, respectively, to achieve partitioning of the first communication installation area 1242, the second communication installation area 1244, the first AC installation area 1222, and the second AC installation area 1224. This, in turn, achieves partitioning between the first AC component 60 and the communication component 50, facilitating the disassembly, assembly, and maintenance of the first AC component 60 and the communication component 50 by operators. At the same time, it can avoid signal interference and improve the power supply and communication reliability of the combiner cabinet.

[0043] For example, the AC device group 610 can be installed in the first AC installation area 1222 by snap-fit ​​or screw-fit, and the corresponding USP module can be installed in the second AC installation area 1224 by snap-fit ​​or screw-fit. The first AC installation area 1222 can be provided with a corresponding bracket, and the AC device group 610 can be installed on the corresponding bracket in the first AC installation area 1222 by snap-fit ​​or screw-fit. The second AC installation area 1224 can be provided with a corresponding bracket, and the corresponding USP module can be installed on the corresponding bracket in the second AC installation area 1224 by snap-fit ​​or screw-fit. In one example, the first AC installation area 1222 can also be provided with a removable panel, which can be used to cover the first AC installation area 1222 to prevent operators from accidentally touching the live AC devices. The removable panel is provided with a window. For example, after the AC device group 610 is installed and wired, by covering the removable panel, only the operating handle of the circuit breaker and the surge protection circuit are visible, thereby improving the safety of the combiner cabinet.

[0044] In one embodiment, as shown in Figures 1, 4 and 6, the junction box structure 100 further includes a first support member 20, which is disposed on a first side 101 of the housing 10 and is configured to support the second AC assembly 70.

[0045] The first support member 20 can be used to support the second AC component 70, wherein the size of the AC device in the second AC component 70 is larger than the size of the AC device in the first AC component 60, and the weight of the AC device in the second AC component 70 is greater than the weight of the AC device in the first AC component 60.

[0046] The first support member 20 is disposed on the first side 101 of the housing 10. The first support member 20 is located outside the receiving cavity, that is, the first support member 20 is disposed outside the housing 10. For example, the first side 101 of the housing 10 is the rear panel of the housing 10, that is, the first support member 20 can be disposed on the outer wall of the rear panel of the housing 10. By disposing of the second AC component 70 on the first support member 20, the second AC component 70 is separated from the DC component 80, the first AC component 60, and the communication component 50, respectively, avoiding signal interference and avoiding occupying space in the first receiving cavity 110 or the second receiving cavity 120. This facilitates the operator to operate or disassemble the second AC component 70 from the first side 101 of the housing 10, improving the ease of disassembly and assembly and the reliability of the combiner cabinet.

[0047] In one embodiment, as shown in Figures 1 and 4, the combiner cabinet structure 100 further includes a second support member 40. The second support member 40 is disposed on a first side 101 of the housing 10 and is configured to support at least one UPS module 620.

[0048] The second support member 40 can support at least one UPS module 620. The UPS module 620 can be mounted on the second support member 40 by snap-fit ​​or screw-fit. The second support member 40 can be mounted on the first side 101 of the housing 10 by screw-fit or welding, and the second support member 40 is spaced apart from the first support member 20. The second support member 40 is located on the first side 101 of the housing 10 and is located outside the receiving cavity, that is, the second support member 40 is located outside the housing 10. For example, the first side 101 of the housing 10 is the rear panel of the housing 10, that is, the second support member 40 can be mounted on the outer wall of the rear panel of the housing 10. Since the UPS module 620 is large in size and weight, by mounting the UPS module 620 on the second support member 40, the UPS module 620 and the communication component 50 are separated, avoiding signal interference and avoiding occupying space in the second receiving cavity 120. This facilitates the operation or disassembly of the UPS module 620 from the outside of the housing 10, improving the convenience and reliability of the combiner cabinet.

[0049] For example, the left side panel of the housing 10 is provided with a first window or the right side panel is provided with a second window. The first window is provided with a first removable plate, and the second window is provided with a second removable plate. The first side 101 of the housing 10 is the outer wall of the rear panel of the housing 10. By installing the UPS module 620 on the outside of the rear panel of the housing 10, it is easier for operators to maintain or disassemble the UPS module 620, thus improving ease of use. For example, the UPS module 620 can be easily disassembled and assembled by removing the first removable plate or the second removable plate of the housing 10.

[0050] In one embodiment, as shown in Figures 1 and 4, the second AC assembly 70 includes a transformer 710. A first support member 20 is configured to support the transformer 710.

[0051] The first support member 20 can be set above the second support member 40. The first support member 20 can be used to support the transformer 710. Since the transformer 710 is large in size and weight, by setting the transformer 710 on the first support member 20, the transformer 710 and the communication component 50 can be separated, avoiding signal interference. At the same time, it avoids occupying the space in the second accommodating cavity 120, making it convenient for operators to disassemble or maintain the transformer 710 from the outside of the housing 10, thus improving the convenience and reliability of the combiner cabinet.

[0052] For example, the left side panel of the housing 10 is provided with a first window or the right side panel is provided with a second window. The first window is provided with a first removable plate, and the second window is provided with a second removable plate. The first side 101 of the housing 10 is the outer wall of the rear panel of the housing 10. By installing the transformer 710 on the outside of the rear panel of the housing 10, the transformer 710 is less likely to be touched, thus improving safety. If it is necessary to disassemble or assemble the transformer 710, the first removable plate or the second removable plate of the housing 10 can be removed, thereby facilitating the disassembly and assembly of the transformer 710.

[0053] In one embodiment, as shown in Figures 4, 5, and 7, the first receiving cavity 110 is provided with a third receiving sub-cavity 112 and a fourth receiving sub-cavity 114. The DC assembly 80 includes a disconnecting switch 810. The third receiving sub-cavity 112 is located between the second receiving cavity 120 and the fourth receiving sub-cavity 114, and the third receiving sub-cavity 112 is configured to accommodate the disconnecting switch 810, while the fourth receiving sub-cavity 114 is configured to accommodate the busbar assembly 820.

[0054] The busbar group 820 can be a copper busbar, and it is used to connect the first wire harness, which is a DC wire harness. The disconnecting switch 810 is connected to the busbar group 820. The disconnecting switch 810 can be used as a circuit breaker for the input power supply or as a disconnecting switch for the output load, thereby isolating the output of the electrical equipment from the load.

[0055] The fourth receiving sub-cavity 114 is located at the lowest position of the receiving cavity of the housing 10, and is used to accommodate the conductive busbar assembly 820. For example, the fourth receiving sub-cavity 114 is provided with a corresponding bracket, and the conductive busbar assembly 820 can be mounted on the corresponding bracket of the fourth receiving sub-cavity 114 by means of screwing or other methods. The third receiving sub-cavity 112 is disposed on the fourth receiving sub-cavity 114, and is used to accommodate the disconnecting switch 810. For example, the third receiving sub-cavity 112 is provided with a corresponding bracket, and the conductive busbar assembly 820 can be mounted on the corresponding bracket of the third receiving sub-cavity 112 by means of screwing or other methods.

[0056] By partitioning the first receiving cavity 110 and the second receiving cavity 120, the DC component 80 is separated from the first AC component 60, the second AC component 70, and the communication component 50, respectively. Different types of devices are spatially spaced, improving the power supply and communication reliability of the combiner cabinet. This reduces mutual interference between different types of devices and facilitates maintenance. The partitioning of the third receiving sub-cavity 112 and the fourth receiving sub-cavity 114 provides ample operating space, facilitating the installation and removal of DC cables. For example, the space of the fourth receiving sub-cavity 114 is larger than that of the third receiving sub-cavity 112; for instance, the distance between the conductor bus 820 and the bottom surface of the housing 10 is 600mm, thus ensuring sufficient operating space for the DC circuit, facilitating the installation and removal of DC cables, and meeting the cable bending radius requirements.

[0057] In one embodiment, as shown in Figures 4, 5, and 7, the fourth receiving sub-cavity 114 is provided with a first DC mounting region 1142 and a second DC mounting region 1144. The DC assembly 80 also includes a surge protector 830. The first DC mounting region 1142 is located adjacent to the third receiving sub-cavity 112, and the first DC mounting region 1142 is configured to mount a busbar assembly 820, while the second DC mounting region 1144 is configured to mount the surge protector 830.

[0058] The surge protector 830 can absorb sudden surge voltages, providing overvoltage protection. The first DC mounting area 1142 can be located below the third receiving cavity 112, spaced apart from the bottom surface of the housing 10 to ensure sufficient distance for wiring. The second DC mounting area 1144 can be located on the second or third side of the housing 10, adjacent to the first side 101 and the third side adjacent to the first side 101. For example, the second side 102 can be the inner wall of the left side plate and the third side can be the inner wall of the right side plate. Exemplarily, the surge protector 830 can be installed in the second DC mounting area 1144 by snap-fit ​​or screw-fit, and the busbar 820 can be installed in the first DC mounting area 1142 by snap-fit ​​or screw-fit.

[0059] The first DC mounting area 1142 is located adjacent to the third receiving cavity 112, and the second DC mounting area 1144 is located on the second side 102 or the third side of the housing 10. The busbar 820 is installed in the first DC mounting area 1142, and the surge protector 830 is installed in the second DC mounting area 1144. This achieves the partitioning of the first receiving cavity 110, and further achieves the partitioning of the surge protector 830 and the busbar 820. This facilitates the disassembly, assembly, and maintenance of the surge protector 830 and the busbar 820 by operators, and improves the ease of disassembly and assembly of the DC components 80 of the combiner cabinet.

[0060] In one embodiment, the first DC mounting area 1142 is spaced apart from the bottom surface of the housing 10.

[0061] The distance between the first DC mounting area 1142 and the bottom surface of the housing 10 can be determined according to the actual application scenario of the combiner cabinet. For example, the distance between the first DC mounting area 1142 and the bottom surface of the housing 10 can be set to 600mm, that is, the distance between the busbar 820 and the bottom surface of the housing 10 is 600mm, thereby ensuring sufficient operating space for the DC circuit, which facilitates wiring and disassembly of DC cables for the busbar 820.

[0062] In one embodiment, as shown in Figures 1 to 3, this application embodiment also provides a combiner cabinet, including a DC component 80, a first AC component 60, a communication component 50, and a combiner cabinet structure 100 provided in this application embodiment. The DC component 80, the first AC component 60, and the communication component 50 are respectively disposed on the combiner cabinet structure 100.

[0063] For details regarding the DC component 80, the first AC component 60, the communication component 50, and the combiner cabinet structure 100, please refer to the specific descriptions of the DC component 80, the first AC component 60, the communication component 50, and the combiner cabinet structure 100 in the embodiments of this application, which will not be repeated here.

[0064] The housing 10 has a first receiving cavity 110 and a second receiving cavity 120, with the second receiving cavity 120 positioned above the first receiving cavity 110. The first receiving cavity 110 is configured to accommodate a DC component 80, which includes a conductor bus 820 connected to a first wiring harness 90. The second receiving cavity 120 is configured to accommodate a first AC component 60 and a communication component 50. The distance from the conductor bus 820 to the bottom surface of the housing 10 is between 200 mm and 800 mm, achieving a reasonable layout for the DC component 80, the first AC component 60, and the communication component 50.

[0065] In this embodiment, by placing the first receiving cavity 110 below the housing 10 and the conductive busbar 820 inside the first receiving cavity 110, and setting the distance between the conductive busbar 820 and the bottom surface of the housing 10 to be between 200 mm and 800 mm, the operating space is large, which facilitates the assembly and maintenance of the conductive busbar 820 by the operator. In addition, when the first wire harness 90 extends into the first receiving cavity 110, there is enough space to bend within the first receiving cavity 110 to achieve electrical connection between the first wire harness 90 and the conductive busbar 820. By setting a second receiving cavity 120 on the first receiving cavity 110, the DC component 80, the first AC component 60, and the communication component 50 are partitioned, and different types of devices are spaced a certain distance apart, which improves the power supply and communication reliability of the combiner cabinet; reduces mutual interference between different types of devices, facilitates maintenance and repair, and improves the maintainability of the combiner cabinet.

[0066] Referring to Figure 8, in one embodiment, an energy storage container 1000 is also provided, including a container body 300 and a combiner cabinet 200 provided in this application embodiment; the combiner cabinet 200 is disposed inside the container body 300.

[0067] The energy collection box 300 may include an electrical compartment, and the combiner cabinet 200 may be installed inside the electrical compartment.

[0068] For a detailed description of the combiner cabinet, please refer to the specific description of the combiner cabinet in the embodiments of this application, which will not be repeated here.

[0069] In this embodiment, by partitioning the internal space of the combiner cabinet and optimizing the layout of the DC component, the first AC component and the communication component, the overall volume of the combiner cabinet is reduced, thereby reducing the space occupied by the energy storage box and making it easier for operators to maintain, operate or disassemble the combiner cabinet.

[0070] The energy storage container may also include components such as battery modules. A specific energy storage container may include more components than those described in the embodiments of this application, or combine certain components, or have different component arrangements.

Claims

1. A structure of a busbar cabinet, comprising: a housing, the housing is provided with a first accommodating cavity and a second accommodating cavity, the second accommodating cavity is arranged above the first accommodating cavity, the first accommodating cavity is arranged to accommodate a direct current assembly, the direct current assembly comprises a conductive row group, the conductive row group is arranged to connect a first wire harness; the second accommodating cavity is arranged to accommodate a first alternating current assembly and a communication assembly; a distance from the conductive row group to a bottom surface of the housing is between 200 mm and 800 mm.

2. The busbar cabinet body structure according to claim 1, wherein, The distance from the conductive row group to the bottom surface of the housing is between 400 mm and 600 mm.

3. The busbar cabinet body structure according to claim 1, wherein, At least one side surface of the housing is provided with a first through hole, the first through hole is arranged to pass through the first wire harness, so that the first wire harness is bent and connected to the conductive row group.

4. The busbar cabinet structure according to claim 3, wherein, The conductive row group comprises at least two conductive rows, the first wire harness comprises at least two first cables; each of the first cables passes through the first through hole, so that at least one first cable is bent and connected to the corresponding conductive row.

5. The busbar cabinet structure according to claim 1, wherein, The second accommodating cavity comprises a first accommodating sub-cavity and a second accommodating sub-cavity, the first accommodating sub-cavity and the second accommodating sub-cavity are arranged at intervals; The first accommodating sub-cavity is arranged to accommodate the first alternating current assembly, and the second accommodating sub-cavity is arranged to accommodate the communication assembly.

6. The busbar cabinet body structure according to claim 5, wherein, A first partition plate is arranged between the first accommodating cavity and the second accommodating cavity; the communication assembly comprises a controller and a terminal block; The second accommodating sub-cavity comprises a first communication mounting area and a second communication mounting area; the first communication mounting area is arranged on the first partition plate, and the second communication mounting area is arranged on a second side surface of the housing adjacent to the first side surface; The first communication mounting area is arranged to mount the controller, and the second communication mounting area is arranged to mount the terminal block.

7. The busbar cabinet structure according to claim 6, wherein, The first accommodating sub-cavity is provided with a first alternating current mounting area and a second alternating current mounting area; the first alternating current assembly comprises an alternating current device group and at least two UPS modules; The first alternating current mounting area is arranged on the first communication mounting area, and is arranged to mount the alternating current device group; The second alternating current mounting area is arranged adjacent to the first side surface of the housing, and is arranged to mount at least one of the UPS modules. 8.The structure of the busbar cabinet according to claim 1, further comprising a first support arranged on the first side surface of the housing, the first support is arranged to support the second alternating current assembly. 9.The structure of the busbar cabinet according to claim 8, further comprising a second support; The second support is arranged on the first side surface of the housing, and is arranged to support at least one of the UPS modules.

10. The busbar cabinet structure according to any one of claims 1 to 9, wherein, The first accommodating cavity is provided with a third accommodating sub-cavity and a fourth accommodating sub-cavity; the direct current assembly further comprises a disconnector; The third accommodating sub-cavity is located between the second accommodating cavity and the fourth accommodating sub-cavity, the third accommodating sub-cavity is arranged to accommodate the disconnector, and the fourth accommodating sub-cavity is arranged to accommodate the conductive row group.

11. The busbar cabinet structure according to claim 10, characterized in that, The fourth accommodating sub-cavity is provided with a first DC installation area and a second DC installation area; the DC assembly further comprises a surge protector; The first DC installation area is arranged adjacent to the third accommodating sub-cavity; the first DC installation area is arranged to install the conductive busbar group, and the second DC installation area is arranged to install the surge protector.

12. A busbar cabinet, comprising a DC assembly, a first AC assembly, a communication assembly, and the busbar cabinet body structure according to any one of claims 1 to 11. The DC assembly, the first AC assembly, and the communication assembly are respectively arranged on the busbar cabinet body structure.

13. An energy storage container, comprising a container body and the busbar cabinet according to claim 12; the busbar cabinet is arranged in the container body.

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