A distribution box and an outdoor energy storage system

Abstract

The utility model provides a kind of distribution box and outdoor energy storage system, distribution box includes shell, multiple incoming and outgoing line plug terminals, main circuit breaker and multiple connection flat cables, and it is equipped with accommodating cavity in shell, and it is equipped with multiple mounting holes on shell;Multiple incoming and outgoing line plug terminals are correspondingly installed in multiple mounting holes;Main circuit breaker is set in accommodating cavity, to be used for controlling the on-off of distribution box;And, main circuit breaker is connected to multiple incoming and outgoing line plug terminals by multiple connection flat cables, wherein, the air gap of adjacent two connection flat cables is greater than or equal to 20mm;Accordingly, connection flat cable connects incoming and outgoing line plug terminal to main circuit breaker, to form passage from commercial power to user side, and the air gap of adjacent two connection flat cables is set to be greater than or equal to 20mm, so that there is sufficient gap between connection flat cable, both can meet the use safety requirement of distribution box, and can guarantee the heat dissipation demand of connection flat cable, to effectively guarantee the safety of distribution box.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, specifically to a distribution box and an outdoor energy storage system. Background Technology

[0002] Outdoor cabinets, as an important application of new energy technologies, have developed rapidly worldwide in recent years. In related technologies, devices such as power distribution circuit breakers and disconnect switches in outdoor cabinets are generally installed separately on sheet metal structural parts inside the cabinet and connected by wire harnesses. The wire harnesses are numerous and the connections are relatively complicated, which leads to a long assembly and debugging time when integrating outdoor cabinet systems and is also prone to causing equipment failure. Utility Model Content

[0003] The embodiments of this utility model provide a distribution box and an outdoor energy storage system, which can improve the technical problems of having many wiring harnesses and complicated connections.

[0004] In a first aspect, embodiments of the present invention provide a distribution box, which includes: The housing has an internal cavity and multiple mounting holes. Multiple inlet and outlet plug terminals are installed in multiple mounting holes. A main circuit breaker, disposed within the accommodating cavity, for controlling the on / off state of the distribution box; and, Multiple connecting cables are provided, and the main circuit breaker is connected to multiple incoming and outgoing line plug terminals one by one through the multiple connecting cables, wherein the air gap between two adjacent connecting cables is ≥20mm.

[0005] In one embodiment, each of the connecting cables is fitted with a heat-shrink tubing.

[0006] In this way, the heat shrink tubing fits snugly against the surface of the connecting cable, providing excellent insulation and protection. This effectively prevents safety hazards caused by poor contact, short circuits, or other unexpected situations during use, further enhancing the electrical safety of the distribution box. Simultaneously, the heat shrink tubing also possesses certain heat resistance and flame-retardant properties, which can, to some extent, resist the erosion of the cable insulation layer by the heat generated by current flowing through the connecting cable, and prevent the connecting cable from overheating and burning, extending the service life of the connecting cable and ensuring the long-term stable operation of the distribution box.

[0007] In one embodiment, the main circuit breaker is disposed in the middle of the accommodating cavity, the housing includes a first panel, and the operating handle of the main circuit breaker extends beyond the first panel.

[0008] By placing the main circuit breaker in the middle of the enclosure, the spatial distribution of the main circuit breaker inside the distribution box is more reasonable, which facilitates the overall electrical connection and wiring. At the same time, the operating handle of the main circuit breaker extends beyond the first panel, allowing users to operate it directly from outside the distribution box without opening the casing. This improves the convenience and safety of operation and avoids unnecessary interference or damage to the internal electrical components caused by frequent opening of the box.

[0009] Meanwhile, compared to the main switch on the circuit breaker, the operating handle is less likely to be accidentally touched, and manual operation is easier and more convenient for users.

[0010] Furthermore, in practical use, the casing is often made of metal. Therefore, placing the main circuit breaker in the middle of the enclosure ensures that the main circuit breaker and the metal casing of the distribution box have sufficient insulation distance, effectively avoiding risks such as short circuits and arcing fires, and improving the safety and reliability of the distribution box.

[0011] In one embodiment, the distribution box further includes a mains power indicator light, which is disposed on the first panel and connected to the main circuit breaker to indicate the status of the power signal input to the incoming and outgoing line plug terminals.

[0012] In this embodiment, the mains power indicator light is arranged adjacent to the operating handle of the main circuit breaker. Therefore, the mains power indicator light can be directly observed when the user operates the operating handle of the main circuit breaker, thereby enhancing the accuracy and safety of the operation.

[0013] This design allows for a clear and intuitive display of the power signal status at the input and output terminals, enabling users to quickly ascertain whether the mains power is properly connected when operating the main circuit breaker. Furthermore, by placing the mains power indicator light adjacent to the main circuit breaker's operating handle, users can simultaneously observe the power status while performing circuit switching operations. This enhances operational accuracy and safety, preventing electrical faults or safety hazards caused by misoperation. It also facilitates routine maintenance and troubleshooting, improving the user experience and reliability of the distribution box.

[0014] In one embodiment, the housing further includes a second panel, which is disposed opposite to the first panel; the distribution box further includes an AC-DC switching power supply, which is disposed on the second panel.

[0015] This design allows for a more rational internal structure of the distribution box, achieving functional zoning: the first panel is primarily used for operation and user interaction, while the second panel is used to install power conversion equipment. By placing the AC-DC switching power supply on the second panel opposite the first panel, the electromagnetic interference generated during power conversion can be effectively avoided from affecting sensitive components such as operating elements and mains indicator lights. It also facilitates heat dissipation and wiring, improving the overall performance and reliability of the distribution box.

[0016] In one embodiment, the first panel includes a first area and a second area, and the distribution box further includes: A high-voltage circuit, wherein the high-voltage circuit is disposed within the housing, and at least a portion of the external interface of the high-voltage circuit is disposed in the first region; and / or, A low-voltage circuit is disposed within the housing, and at least a portion of the external interface of the low-voltage circuit is disposed in the second region.

[0017] In this way, the first panel is divided into the first area and the second area, making the functional layout of the distribution box clearer and more reasonable.

[0018] In this way, the external interface of the high-voltage circuit is located in the first area, while the external interface of the low-voltage circuit is located in the second area. This effectively avoids mutual interference between the high-voltage and low-voltage circuits, ensures electrical safety, and facilitates operation and connection for users according to different voltage levels.

[0019] Meanwhile, the high-voltage circuit interfaces are concentrated in one area, which facilitates the access and management of high-voltage equipment; the low-voltage circuit interfaces are concentrated in another area, which facilitates the connection and use of low-voltage equipment. This not only improves the safety of the distribution box but also enhances the convenience and efficiency of operation.

[0020] It should also be noted that, in this embodiment, the external interfaces of the high-voltage circuit include the AC220V power supply interface of the liquid cooling unit and the AC220V power supply for the cabinet lighting, and the external interfaces of the low-voltage circuit include the DC24V power supply of the dynamic ring and the EMS-DC24V power supply; at the same time, a feedback signal interface and a control interface are also provided in the second area.

[0021] In one embodiment, the distribution box further includes: A high-voltage power distribution circuit control switch, wherein the high-voltage power distribution circuit control switch is located in the first area; and / or, A low-voltage power supply circuit control switch is located in the second area.

[0022] This allows the control switches for the high-voltage circuit and the low-voltage circuit to be located in the same area as their corresponding circuit interfaces, achieving a high degree of functional integration and zoned management.

[0023] In this way, the zoned control design not only improves the convenience of operation and reduces the possibility of misoperation, but also enhances the safety of the distribution box by clearly separating the control of high-voltage and low-voltage circuits, thus avoiding electrical accidents caused by confusion.

[0024] It should also be noted that, in this embodiment, there are multiple high-voltage power distribution circuit control switches, including AC auxiliary power main circuit breaker, liquid chiller AC220V power supply, switching power supply AC220V power supply, AC circuit breaker tripping 220V power supply, and socket lighting AC220V power supply, etc.; there are multiple low-voltage power supply circuit control switches, including display screen / switch EMS / emergency stop extended fire DC24V power supply and water immersion / dehumidification / backup DC24V power supply, etc.

[0025] In one embodiment, the distribution box further includes: Multiple low-voltage signal interfaces, at least some of which are located in the second region.

[0026] This allows low-voltage signal interfaces to be rationally arranged in different areas according to their voltage level and functional requirements, further optimizing the functional zoning and ease of operation of the distribution box.

[0027] In addition, the low-voltage signal interface is located in the second area, adjacent to the low-voltage power supply circuit control switch, which facilitates the user's management of the low-voltage signal.

[0028] In addition, the zoned design facilitates the maintenance and repair of the distribution box. Maintenance personnel can quickly locate each interface and related circuit, thereby more efficiently troubleshooting and solving problems, and improving the maintenance efficiency and overall reliability of the distribution box.

[0029] In one embodiment, the first region is configured as a high-pressure region; and / or, the second region is configured as a low-pressure region.

[0030] By concentrating high-voltage equipment and interfaces in the high-voltage area and low-voltage equipment and interfaces in the low-voltage area, electrical interference and the risk of misoperation between high-voltage and low-voltage circuits can be effectively avoided.

[0031] In this way, the clear division between high-voltage and low-voltage areas allows users to clearly identify equipment and interfaces of different voltage levels during operation, thereby reducing the risk of electrical accidents caused by confusion.

[0032] It is understood that in this embodiment, the first area is also provided with a grounding bolt for the distribution box. The grounding bolt connects the metal shell of the distribution box to the earth, forming a low-resistance path. If the electrical components inside the distribution box malfunction (such as leakage caused by insulation damage), the leakage current will flow into the earth through the grounding bolt instead of through the human body, thereby effectively preventing electric shock accidents.

[0033] In one embodiment, the input / output plug terminals include a first plug terminal and a second plug terminal, with the first plug terminal and the second plug terminal being disposed one-to-one on the first panel and the second panel; The connection cable includes a first cable and a second cable. The first plug terminal is connected to the main circuit breaker through the first cable, and the second plug terminal is connected to the main circuit breaker through the second cable. The first cable and the second cable are located diagonally opposite each other on the main circuit breaker.

[0034] Thus, by placing the first and second plug terminals on the first and second panels respectively, the incoming and outgoing cable interfaces are distributed on both sides of the distribution box. This layout effectively reduces wiring intersections and clutter, making the wiring inside the distribution box clearer and neater. Simultaneously, the first and second rows of cables are located diagonally opposite the main circuit breaker, further optimizing the wiring path, avoiding mutual interference between lines, improving the rationality of the wiring, and enhancing the safety of the distribution box. Furthermore, the separated wiring paths also reduce the safety risks caused by short circuits or poor connections.

[0035] Thus, the diagonal wiring design increases the air gap between the wires, which is beneficial for heat dissipation.

[0036] It should also be noted that in this embodiment, there are four first plug terminals, which serve as the AC380V interface on the PCS AC side. Similarly, there are four second plug terminals, which serve as the AC380V interface on the user side.

[0037] In one embodiment, the second region and the second cabling are located on opposite sides of the housing along the width direction of the housing.

[0038] Thus, by placing the second region and the second row of lines on both sides of the width of the shell, the spatial layout inside the shell becomes more reasonable.

[0039] In this way, the width of the enclosure can be fully utilized, avoiding local space congestion caused by centralized wiring, thereby improving the space utilization rate of the entire distribution box.

[0040] In one embodiment, the connecting cable is configured as a copper busbar connecting cable.

[0041] Using copper busbar connectors can significantly improve the overall performance and reliability of distribution boxes. The high conductivity, high mechanical strength, good heat dissipation, and corrosion resistance of copper busbar connectors make the distribution box more stable during operation, reduce the risk of failures caused by wiring problems, and improve the service life and maintenance efficiency of the distribution box.

[0042] Secondly, embodiments of this utility model provide an outdoor energy storage system, which includes the distribution box described in the foregoing embodiments.

[0043] The beneficial effects of the embodiments of this utility model are as follows: In the embodiments of this utility model, the connecting ribbon cable connects the incoming and outgoing plug terminals to the main circuit breaker, so that the mains power is connected to the user side. Furthermore, the air gap between two adjacent connecting ribbon cables is set to ≥20mm, so that there is sufficient gap between the connecting ribbon cables, which can not only meet the safety requirements of the distribution box, but also ensure the heat dissipation requirements of the connecting ribbon cables, thereby effectively ensuring the safety of the distribution box. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a schematic diagram of the structure of the distribution box provided in an embodiment of this utility model; Figure 2 yes Figure 1 A partial structural diagram of the central distribution box; Figure 3 yes Figure 2 The top view of the distribution box shown; Figure 4 yes Figure 2 The front view of the distribution box shown; Figure 5 yes Figure 2 The rear view of the distribution box shown.

[0046] The image is labeled as follows: 1. Distribution box; 11. Housing; 111. First panel; 112. Second panel; 12. Inlet / outlet plug terminal; 121. First plug terminal; 122. Second plug terminal; 13. Main circuit breaker; 131. Operating handle; 14. Connect the ribbon cable; 141. First ribbon cable; 142. Second ribbon cable; 15. Mains power indicator light; 16. External interfaces of high-voltage circuits; 17. External interfaces of low-voltage circuits; 18. High-voltage power distribution circuit control switch; 19. Low-voltage power supply circuit control switch; 20. Low-voltage signal interface; 21. Grounding bolt. Detailed Implementation

[0047] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. In the present utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0048] Reference Figure 1 As shown, an embodiment of this utility model provides a distribution box 1, which includes a housing 11, multiple incoming and outgoing line plug terminals 12, a main circuit breaker 13, and multiple connecting cables 14. The housing 11 has a receiving cavity and multiple mounting holes. The multiple incoming and outgoing line plug terminals 12 are correspondingly installed in the multiple mounting holes. The main circuit breaker 13 is disposed in the receiving cavity for controlling the on / off state of the distribution box 1. The main circuit breaker 13 is connected to the multiple incoming and outgoing line plug terminals 12 one by one through the multiple connecting cables 14, wherein the air gap between two adjacent connecting cables 14 is ≥20mm.

[0049] In this embodiment of the utility model, the connecting cable 14 connects the inlet and outlet plug terminals 12 to the main circuit breaker 13, so that the mains power is connected to the user side. Furthermore, the air gap between two adjacent connecting cables 14 is set to ≥20mm, so that there is sufficient gap between the connecting cables 14, which can not only meet the safety requirements of the distribution box 1, but also ensure the heat dissipation requirements of the connecting cables 14, thereby effectively ensuring the safety of the distribution box 1.

[0050] It should also be noted that the air gap is the gap between electronic devices or between different components on a circuit board. In this embodiment, the air gap between the two connecting cables 14 is the air gap between the connecting cables 14 of each phase, that is, the minimum air insulation distance between the connecting cables 14 of each phase.

[0051] In some embodiments, each connecting cable 14 is fitted with a heat shrink sleeve.

[0052] In this way, the heat shrink tubing can fit snugly against the surface of the connecting cable 14, providing excellent insulation and protection. This effectively prevents safety hazards caused by poor contact, short circuits, or other unexpected situations during use, further enhancing the electrical safety of the distribution box 1. Simultaneously, the heat shrink tubing also possesses certain heat resistance and flame-retardant properties, which can, to some extent, resist the erosion of the cable insulation layer by the heat generated by current flowing through the connecting cable 14, and prevent combustion caused by excessively high temperatures. This extends the service life of the connecting cable 14 and ensures the long-term stable operation of the distribution box 1.

[0053] In some embodiments, refer to Figure 2 and Figure 3 As shown, the main circuit breaker 13 is located in the middle of the accommodating cavity, and the housing 11 includes a first panel 111. The operating handle 131 of the main circuit breaker 13 extends beyond the first panel 111.

[0054] Thus, by placing the main circuit breaker 13 in the middle of the accommodating cavity, the spatial distribution of the main circuit breaker 13 inside the distribution box 1 is more reasonable, which facilitates the overall electrical connection and wiring. At the same time, the operating handle 131 of the main circuit breaker 13 extends beyond the first panel 111, which allows users to operate it directly from outside the distribution box 1 without opening the housing 11 to control the on / off state of the main circuit breaker 13. This improves the convenience and safety of operation, and also avoids unnecessary interference or damage to the internal electrical components caused by frequent opening of the housing.

[0055] Meanwhile, compared to the main switch on the main circuit breaker 13, the operating handle 131 is less likely to be accidentally touched, and manual operation is easier and more convenient for users.

[0056] In addition, in practical use, the housing 11 is usually set as a metal housing 11. Therefore, the main circuit breaker 13 is set in the middle of the accommodating cavity, so that the main circuit breaker 13 and the metal housing 11 of the distribution box 1 have sufficient insulation distance, which effectively avoids the risks of short circuit, arcing and fire, and improves the safety and reliability of the distribution box 1.

[0057] In some embodiments, refer to Figure 2 and Figure 3As shown, the distribution box 1 also includes a mains power indicator light 15, which is located on the first panel 111. The mains power indicator light 15 is connected to the main circuit breaker 13 to indicate the status of the power signal input to the input / output plug terminal 12.

[0058] In this embodiment, the mains power indicator 15 is arranged adjacent to the operating handle 131 of the main circuit breaker 13. Therefore, when the user operates the operating handle 131 of the main circuit breaker 13, the mains power indicator 15 can be observed intuitively, thereby enhancing the accuracy and safety of the operation.

[0059] In this way, the power signal status input to the inlet / outlet plug terminal 12 can be displayed intuitively, allowing users to quickly understand whether the mains power is properly connected when operating the main circuit breaker 13. Furthermore, by arranging the mains power indicator 15 adjacent to the operating handle 131 of the main circuit breaker 13, users can simultaneously observe the power status when performing circuit switching operations, thereby enhancing the accuracy and safety of operation, avoiding electrical faults or safety hazards caused by misoperation, and also facilitating daily maintenance and troubleshooting, thus improving the user experience and reliability of the distribution box 1.

[0060] In some embodiments, refer to Figure 2 and Figure 3 As shown, the housing 11 also includes a second panel 112, which is arranged opposite to the first panel 111; the distribution box 1 also includes an AC-DC switching power supply, which is disposed on the second panel 112.

[0061] This design allows for a more rational internal structure of the distribution box 1, achieving functional zoning: the first panel 111 is primarily used for operation and user interaction, while the second panel 112 is used to install power conversion equipment. By placing the AC-DC switching power supply on the second panel 112, which is opposite to the first panel 111, the electromagnetic interference generated during power conversion can be effectively avoided from affecting sensitive components such as operating elements and mains indicator lights 15. It also facilitates heat dissipation and wiring, improving the overall performance and reliability of the distribution box 1.

[0062] In some embodiments, refer to Figures 2 to 4 As shown, the first panel 111 includes a first area and a second area, and the distribution box 1 also includes: High-voltage circuit, the high-voltage circuit is disposed within the housing 11, and at least a portion of the high-voltage circuit's external interface 16 is disposed in the first region; and / or, The low-voltage circuit is located inside the housing 11, and at least part of the low-voltage circuit's external interface 17 is located in the second area.

[0063] Thus, the first panel 111 is divided into a first area and a second area, making the functional layout of the distribution box 1 clearer and more reasonable.

[0064] Thus, the external interface 16 of the high-voltage circuit is located in the first area, while the external interface 17 of the low-voltage circuit is located in the second area. This effectively avoids mutual interference between the high-voltage circuit and the low-voltage circuit, ensures electrical safety, and facilitates operation and connection for users according to different voltage levels.

[0065] Meanwhile, the high-voltage circuit interfaces are concentrated in one area, which facilitates the access and management of high-voltage equipment; the low-voltage circuit interfaces are concentrated in another area, which facilitates the connection and use of low-voltage equipment. This not only improves the safety of the distribution box 1, but also enhances the convenience and efficiency of operation.

[0066] It should also be noted that, in this embodiment, the external interface 16 of the high-voltage circuit includes an AC220V power supply interface for the liquid cooling unit and an AC220V power supply interface for the cabinet lighting, and the external interface 17 of the low-voltage circuit includes a DC24V power supply for the dynamic ring and an EMS-DC24V power supply; at the same time, a feedback signal interface and a control interface are also provided in the second area.

[0067] In some embodiments, refer to Figures 2 to 4 As shown, the distribution box 1 also includes: a high-voltage power distribution circuit control switch 18, which is located in the first area; and / or, a low-voltage power supply circuit control switch 19, which is located in the second area.

[0068] This allows the control switches for the high-voltage circuit and the low-voltage circuit to be located in the same area as their corresponding circuit interfaces, achieving a high degree of functional integration and zoned management.

[0069] Thus, the zoned control design not only improves the convenience of operation and reduces the possibility of misoperation, but also enhances the safety of distribution box 1 by clearly separating the control of high-voltage and low-voltage circuits, thus avoiding electrical accidents caused by confusion.

[0070] It should also be noted that, in this embodiment, there are multiple high-voltage power distribution circuit control switches 18, including AC auxiliary power main circuit breaker, liquid chiller AC220V power supply, switching power supply AC220V power supply, AC circuit breaker tripping 220V power supply, and socket lighting AC220V power supply, etc.; there are multiple low-voltage power supply circuit control switches 19, including display screen / switch EMS / emergency stop extended fire DC24V power supply and water immersion / dehumidification / backup DC24V power supply, etc.

[0071] In some embodiments, refer to Figures 2 to 4 As shown, the distribution box 1 also includes: multiple low-voltage signal interfaces 20, at least some of which are located in the second area.

[0072] This allows the low-voltage signal interface 20 to be rationally arranged in different areas according to its voltage level and functional requirements, further optimizing the functional zoning and ease of operation of the distribution box 1.

[0073] In addition, the low-voltage signal interface 20 is located in the second area, adjacent to the low-voltage power supply circuit control switch 19, which facilitates the user's management of the low-voltage signal.

[0074] In addition, the zoned design facilitates the maintenance and repair of distribution box 1. Maintenance personnel can quickly locate each interface and related circuit, thereby more efficiently troubleshooting and solving problems, and improving the maintenance efficiency and overall reliability of distribution box 1.

[0075] In some embodiments, the first region is configured as a high-pressure region; and / or, the second region is configured as a low-pressure region.

[0076] By concentrating high-voltage equipment and interfaces in the high-voltage area and low-voltage equipment and interfaces in the low-voltage area, electrical interference and the risk of misoperation between high-voltage and low-voltage circuits can be effectively avoided.

[0077] In this way, the clear division between high-voltage and low-voltage areas allows users to clearly identify equipment and interfaces of different voltage levels during operation, thereby reducing the risk of electrical accidents caused by confusion.

[0078] It is understood that in this embodiment, the first area is also provided with a grounding bolt 21 for the distribution box 1. The grounding bolt 21 connects the metal shell of the distribution box 1 to the ground, forming a low-resistance path. If the electrical components inside the distribution box 1 fail (such as leakage caused by insulation damage), the leakage current will flow into the ground through the grounding bolt 21 instead of through the human body, thereby effectively preventing electric shock accidents.

[0079] In some embodiments, refer to Figures 2 to 5 As shown, the input / output plug terminal 12 includes a first plug terminal 121 and a second plug terminal 122, and the first plug terminal 121 and the second plug terminal 122 are respectively disposed on the first panel 111 and the second panel 112. The connecting cable 14 includes a first cable 141 and a second cable 142. The first plug terminal 121 is connected to the main circuit breaker 13 through the first cable 141, and the second plug terminal 122 is connected to the main circuit breaker 13 through the second cable 142. The first cable 141 and the second cable 142 are located diagonally opposite to the main circuit breaker 13.

[0080] Thus, by placing the first plug terminal 121 and the second plug terminal 122 on the first panel 111 and the second panel 112 respectively, the incoming and outgoing cable interfaces are distributed on both sides of the distribution box 1. This layout effectively reduces wiring intersections and clutter, making the wiring inside the distribution box 1 clearer and neater. Simultaneously, the first row of cables 141 and the second row of cables 142 are located diagonally opposite the main circuit breaker 13, further optimizing the wiring path, avoiding mutual interference between lines, improving the rationality of the wiring, and enhancing the safety of the distribution box 1. Furthermore, the separated wiring paths also reduce the safety risks caused by short circuits or poor contact.

[0081] Thus, the diagonal wiring design increases the air gap between the wires, which is beneficial for heat dissipation.

[0082] It should also be noted that in this embodiment, there are four first plug terminals 121, which serve as the AC380V interface on the PCS AC side. Similarly, there are four second plug terminals 122, which serve as the AC380V interface on the user side.

[0083] In some embodiments, along the width direction of the housing 11, the second region and the second wiring 142 are located on both sides of the housing 11.

[0084] Thus, by setting the second region and the second row of lines 142 on both sides of the width direction of the housing 11, the spatial layout inside the housing 11 becomes more reasonable.

[0085] In this way, the width of the housing 11 can be fully utilized, avoiding local space congestion caused by centralized wiring, thereby improving the space utilization rate of the entire distribution box 1.

[0086] In some embodiments, the connecting cable 14 is configured as a copper busbar connecting cable.

[0087] Using copper busbar connectors can significantly improve the overall performance and reliability of distribution box 1. The high conductivity, high mechanical strength, good heat dissipation, and corrosion resistance of copper busbar connectors make distribution box 1 more stable during operation, reduce the risk of failure caused by problems with the connecting cable 14, and improve the service life and maintenance efficiency of distribution box 1.

[0088] In summary, in this embodiment, by rationally arranging the positions of various electrical components in the distribution box 1, the length of the connecting cable 11 to each electrical component is reduced, thus improving the aesthetics of the wiring.

[0089] Secondly, this utility model embodiment also provides an outdoor energy storage system, which includes the distribution box 1 in the aforementioned embodiment.

[0090] This outdoor energy storage system has all the beneficial effects of the distribution box 1 in the aforementioned embodiments, which will not be repeated here.

[0091] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A distribution box, characterized in that, include: The housing (11) has a cavity inside and a plurality of mounting holes on the housing (11); Multiple inlet and outlet plug terminals (12) are installed in the multiple mounting holes respectively; Main circuit breaker (13), which is disposed in the accommodating cavity for controlling the on / off state of the distribution box (1); as well as, Multiple connecting cables (14) are provided, and the main circuit breaker (13) is connected to multiple incoming and outgoing line plug terminals (12) one by one through the multiple connecting cables (14), wherein the air gap between two adjacent connecting cables (14) is ≥20mm.

2. The distribution box according to claim 1, characterized in that, Each of the aforementioned connecting cables (14) is fitted with a heat shrink sleeve.

3. The distribution box according to claim 1, characterized in that, The main circuit breaker (13) is disposed in the middle of the accommodating cavity, the housing (11) includes a first panel (111), and the operating handle (131) of the main circuit breaker (13) extends beyond the first panel (111).

4. The distribution box according to claim 3, characterized in that, The distribution box (1) also includes a mains power indicator (15), which is located on the first panel (111). The mains power indicator (15) is connected to the main circuit breaker (13) to indicate the status of the power signal input to the input / output plug terminal (12).

5. The distribution box according to claim 3 or 4, characterized in that, The housing (11) further includes a second panel (112), which is disposed opposite to the first panel (111); the distribution box (1) further includes an AC-DC switching power supply, which is disposed on the second panel (112).

6. The distribution box according to claim 5, characterized in that, The first panel (111) includes a first area and a second area, and the distribution box (1) further includes: A high-voltage circuit, wherein the high-voltage circuit is disposed within the housing (11), and at least a portion of the external interface (16) of the high-voltage circuit is disposed in the first region; and / or, A low-voltage circuit is disposed within the housing (11), and at least a portion of the external interface (17) of the low-voltage circuit is disposed in the second region.

7. The distribution box according to claim 6, characterized in that, The distribution box (1) also includes: A high-voltage power distribution circuit control switch (18), wherein the high-voltage power distribution circuit control switch (18) is disposed in the first area; and / or, Low-voltage power supply circuit control switch (19) is located in the second area.

8. The distribution box according to claim 6, characterized in that, The distribution box (1) also includes: Multiple low-voltage signal interfaces (20), at least some of the low-voltage signal interfaces (20) are disposed in the second region.

9. The distribution box according to any one of claims 6-8, characterized in that, The first region is set as a high-pressure region; and / or, the second region is set as a low-pressure region.

10. The distribution box according to claim 6, characterized in that, The input / output plug terminal (12) includes a first plug terminal (121) and a second plug terminal (122), and the first plug terminal (121) and the second plug terminal (122) are respectively disposed on the first panel (111) and the second panel (112). The connecting cable (14) includes a first cable (141) and a second cable (142). The first plug terminal (121) is connected to the main circuit breaker (13) through the first cable (141), and the second plug terminal (122) is connected to the main circuit breaker (13) through the second cable (142). The first cable (141) and the second cable (142) are located at opposite positions of the main circuit breaker (13).

11. The distribution box according to claim 10, characterized in that, Along the width direction of the housing (11), the second region and the second wiring (142) are located on both sides of the housing (11).

12. The distribution box according to claim 1, characterized in that, The connecting cable (14) is configured as a copper busbar connecting cable.

13. An outdoor energy storage system, characterized in that, Includes the distribution box (1) as described in any one of claims 1-12.

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