Integrated energy storage device

Abstract

The utility model provides an integrated energy storage device. The energy storage integrated device comprises an electrical cabin; the energy storage integrated cabinet is arranged in the electrical cabin; the energy storage integrated cabinet comprises a cabinet body, and the cabinet body comprises a first cavity, a second cavity and a third cavity which are arranged at intervals in the first direction; the energy storage integrated cabinet further comprises an alternating current and control assembly, a direct current distribution assembly and a cable assembly. The alternating current and control assembly is located in the first cavity; the direct-current power distribution assembly is located in the second cavity; the cable assembly is located in the third cavity. The alternating current and control assembly, the direct current power distribution assembly and the cable assembly are integrated in the energy storage integrated cabinet, the space utilization rate of the electrical cabin is improved, and maintenance personnel can conveniently conduct overhaul and maintenance.

Description

Technical Field

[0001] The present application relates to the field of energy storage technology, and in particular to an integrated energy storage device. Background Art

[0002] With the continuous development of the electrochemical energy storage industry, energy storage power stations have higher and higher requirements for area energy density, and battery prefabricated cabin battery energy storage systems have appeared on the market. At present, the system power distribution in the battery prefabricated cabin is made into a separate distribution box and installed on the wall of the electrical cabin, and the DC system is made into a separate junction cabinet and installed on the floor of the electrical cabin in the battery prefabricated cabin. The distribution box and junction cabinet occupy most of the space in the electrical cabin, resulting in low space utilization of the electrical cabin, complex wiring, and difficult maintenance. Utility Model Content

[0003] In view of this, the present application provides an integrated energy storage device, which includes an energy storage integrated cabinet. The energy storage integrated cabinet integrates power distribution and convergence, and combines AC and control components, DC distribution components and cable components into an integrated cabinet, thereby improving the space utilization of the electrical compartment.

[0004] To solve the above problems, the technical solutions provided by this application are as follows:

[0005] The present application provides an energy storage integrated device, comprising:

[0006] Electrical compartment;

[0007] The energy storage integrated cabinet is arranged in the electrical cabin; the energy storage integrated cabinet comprises a cabinet body, and the cabinet body comprises a first chamber, a second chamber and a third chamber which are arranged at intervals along a first direction;

[0008] The energy storage integrated cabinet also includes an AC and control component, a DC power distribution component and a cable component; the AC and control component is located in the first chamber; the DC power distribution component is located in the second chamber; and the cable component is located in the third chamber.

[0009] In an optional embodiment of the present application, the cabinet includes a first partition and a second partition arranged at intervals along a first direction, and the first partition and the second partition divide the cabinet into a first chamber, a second chamber, and a third chamber.

[0010] In an optional embodiment of the present application, the second partition plate is provided with a connecting groove along the first direction, and the connecting groove connects the second chamber and the third chamber respectively.

[0011] In an optional embodiment of the present application, the DC power distribution assembly includes a DC isolating switch, and the cable assembly includes a plurality of connecting bars;

[0012] A plurality of connection bars are respectively connected to the DC isolating switches.

[0013] In an optional embodiment of the present application, the cable assembly includes a plurality of cable groups, one end of each cable group is respectively connected to a plurality of connection bars, and the other end of each cable group is connected to a battery cluster and / or an inverter.

[0014] In an optional embodiment of the present application, the connecting bar includes a positive bus and a negative bus, and the positive bus and the negative bus are located on opposite sides of the third chamber, wherein an isolation plate is provided in the third chamber, and the isolation plate is provided between the positive bus and the negative bus.

[0015] In an optional embodiment of the present application, the AC and control component includes an AC incoming line circuit breaker and multiple branch circuit breakers, and the AC incoming line circuit breaker is connected to the multiple branch circuit breakers respectively.

[0016] In an optional embodiment of the present application, the AC and control component includes a battery management system main control board, and the battery management system main control board is respectively connected to the AC incoming line circuit breaker and multiple branch circuit breakers.

[0017] In an optional embodiment of the present application, the AC and control component also includes an uninterruptible power supply and a backup power supply connected to the uninterruptible power supply, wherein the uninterruptible power supply is respectively connected to the branch circuit breaker and the DC isolating switch.

[0018] In an optional embodiment of the present application, a cable hole is provided on a side of the cabinet away from the first chamber, and one end of the cable group passes through the cable hole and is connected to the battery cluster and / or the converter.

[0019] The energy storage integrated device provided by the present application includes at least the following beneficial effects: an electrical compartment; an energy storage integrated cabinet, which is arranged in the electrical compartment; the energy storage integrated cabinet includes a cabinet body, which includes a first chamber, a second chamber, and a third chamber arranged at intervals along a first direction; the energy storage integrated cabinet also includes an AC and control component, a DC power distribution component, and a cable component; the AC and control component is located in the first chamber; the DC power distribution component is located in the second chamber; and the cable component is located in the third chamber. The AC and control component, the DC power distribution component, and the cable component are integrated in the energy storage integrated cabinet, which improves the space utilization rate of the electrical compartment and facilitates maintenance personnel to perform inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A schematic diagram of the structure of an energy storage integrated device provided in an embodiment of the present application.

[0022] Figure 2A , 2B A schematic diagram of the structure of an energy storage integrated cabinet provided in an embodiment of the present application.

[0023] Figure 3 A partial schematic diagram of the third chamber provided in an embodiment of the present application.

[0024] Figure 4 The electrical schematic diagram of the AC and control components provided in the embodiment of the present application.

[0025] Figure 5 An electrical schematic diagram of a DC power distribution assembly provided in an embodiment of the present application.

[0026] Reference numerals: 100-energy storage integrated device; 1001-electrical compartment; 1002-battery compartment; 200-energy storage integrated cabinet; 10-cabinet; 11-chamber; 111-first chamber; 112-second chamber; 113-third chamber; 12-first partition; 13-second partition; 14-cabinet door; 15-exhaust hole; 16-status indicator light; 17-operation button; 18-display screen; 19-emergency stop button; 20-AC and control components; 201-AC incoming circuit breaker; 202-branch circuit breaker; 203- Battery management system main control board; 204-uninterruptible power supply; 205-backup power supply; 206-first surge protector; 207-current transformer; 30-DC distribution assembly; 301-DC disconnector; 40-cable assembly; 401-second surge protector; 402-fuse; 403-connecting bar; 403a-positive bus bar; 403b-negative bus bar; 404-first sub-connecting bar; 405-second sub-connecting bar; 406-cable group; 407-cable; 408-isolating plate; 409-insulating column. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0028] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0029] The present application may repeat reference numerals and / or reference letters in different implementations. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various implementations and / or settings discussed.

[0030] The energy storage integrated device provided in the present application will be described in detail below in conjunction with specific embodiments and drawings.

[0031] See also Figure 1 , Figure 2A as well as Figure 2B The present application provides an energy storage integrated device 100, comprising:

[0032] Electrical compartment 1001;

[0033] The energy storage integrated cabinet 200 is arranged in the electrical compartment 1001; the energy storage integrated cabinet 200 includes a cabinet body 10, and the cabinet body 10 includes a first chamber 111, a second chamber 112 and a third chamber 113 which are arranged at intervals along a first direction Z;

[0034] The energy storage integrated cabinet 200 also includes an AC and control component 20, a DC distribution component 30 and a cable component 40; the AC and control component 20 is located in the first chamber 111; the DC distribution component 30 is located in the second chamber 112; and the cable assembly 40 is located in the third chamber 113.

[0035] Specifically, the cabinet 10 includes a plurality of chambers 11 arranged along the first direction Z, and the number of the chambers 11 is, for example, 3, and the chambers 11 are respectively a first chamber 111, a second chamber 112, and a third chamber 113. The AC and control components 20, the DC distribution components 30, and the cable components 40 are all arranged in the cabinet 10. Compared with the related art in which the junction cabinet and the distribution box are separately configured in a cabinet and arranged in the electrical compartment, the energy storage integrated cabinet 200 of an embodiment of the present application is integrated with the AC and control components 20, the DC distribution components 30, and the cable components 40 in one cabinet, thereby improving the space utilization rate of the electrical compartment 1001. At the same time, when the energy storage integrated cabinet 200 fails, it is convenient for maintenance personnel to simultaneously repair the AC and control components 20, the DC distribution components 30, and the cable components 40. Therefore, the design of the energy storage integrated cabinet 200 not only improves the space utilization rate of the electrical compartment 1001, but also improves the maintenance efficiency, saving labor costs, manufacturing costs, and maintenance costs.

[0036] In an optional embodiment of the present application, the cabinet 10 includes a first partition 12 and a second partition 13 spaced apart along a first direction Z, and the first partition 12 and the second partition 13 divide the cabinet 10 into a first chamber 111 , a second chamber 112 and a third chamber 113 .

[0037] Specifically, the first partition 12 and the second partition 13 can be relatively parallel or relatively inclined, for example, depending on the actual application. Exemplarily, the first partition 12 and the second partition 13 are relatively parallel to the upper surface of the cabinet 10 and relatively perpendicular to the side wall of the cabinet 10, so as to separate the cabinet 10 into a first chamber 111, a second chamber 112 and a third chamber 113, respectively, so that the AC and control component 20, the DC power distribution component 30 and the cable component 40 can be arranged in the first chamber 111, the second chamber 112 and the third chamber 113 in sequence.

[0038] In an optional embodiment of the present application, the second partition plate 13 is provided with a connecting groove (not shown) along the first direction Z, and the connecting groove is connected to the second chamber 112 and the third chamber 113 respectively.

[0039] Furthermore, the connecting groove penetrates the second partition plate 13 along the first direction Z, and connects the second chamber 112 and the third chamber 113 through the connecting groove. The connecting groove is used for the connection row 403 or the signal line (described later) of the cable assembly 40 to pass through. The connection row 403 or the signal line is connected to the DC isolation switch 301 or the battery management system main control board through the connecting groove, unifying the wiring path and facilitating the wiring arrangement. Exemplarily, one end of the plurality of connection rows 403 can be electrically connected to the DC power distribution assembly 30 through the connecting groove.

[0040] Specifically, the energy storage integrated device 100 also includes a battery compartment 1002 , which is disposed adjacent to the electrical compartment 1001 . A plurality of battery clusters are arrayed in the battery compartment 1002 , and the battery clusters are connected to the DC isolating switch 301 to supply energy to the DC power distribution assembly 30 .

[0041] See also Figure 2B , exemplarily, the cabinet 10 also includes a cabinet door 14, which is used to open or close the cabinet 10, so as to facilitate maintenance personnel to inspect. A status indicator light 16 is provided on the cabinet 10, which is used to indicate the internal situation of the energy storage integrated cabinet 200. exemplarily, the status indicator light 16 includes a red light and a green light. When the green light is displayed, the internal circuit or safety of the energy storage integrated cabinet 200 is in good condition; when the red light is displayed, it means that there is a problem with the internal circuit or safety of the energy storage integrated cabinet 200, and maintenance is required. The staff can know whether the energy storage integrated cabinet 200 is safe or has a circuit problem from the status indicator light 16. An operation button 17 is provided on the cabinet 10. exemplarily, the operation button 17 includes a closing button and an opening button. The closing button and the opening button are connected to the DC disconnector 301. The closing button is used to connect the DC disconnector 301, and the opening button is used to disconnect the DC disconnector 301, that is, to disconnect the connection between the DC disconnector 301 and the battery cluster. A display screen 18 is provided on the cabinet 10, which is used to display the internal situation of the energy storage integrated cabinet 200. In addition, an emergency stop button 19 is also provided on the cabinet 10. When a fire accident occurs or an emergency stop is required, the emergency stop button 19 can be activated to stop the operation of the energy storage integrated cabinet 200. However, the cabinet 10 not only includes the above-mentioned parts, but the specific application shall prevail.

[0042] Exemplarily, a plurality of exhaust holes 15 are provided on the cabinet 10, and the plurality of exhaust holes 15 are arranged in an array on the cabinet 10. The exhaust holes 15 penetrate the side wall of the cabinet 10 and respectively connect the external air and the first chamber 111 and the third chamber 113 of the energy storage integrated cabinet 200, so as to dissipate heat and ventilate the energy storage integrated cabinet 200.

[0043] In an optional embodiment of the present application, the cable assembly 40 includes a plurality of connection bars 403 ; the DC power distribution assembly 30 includes a DC isolating switch 301 , and the plurality of connection bars 403 are respectively connected to the DC isolating switch 301 .

[0044] Specifically, the DC disconnect switch 301 is located in the second chamber 112 and connected to a plurality of connection bars 403. One end of the plurality of connection bars 403 away from the DC disconnect switch 301 is connected to a power source, such as a battery cluster in a battery compartment. One end of the plurality of connection bars 403 away from the DC disconnect switch 301 may also be connected to an external converter (Power Conversion System, PCS). That is, the connection bar 403 may include a first sub-connection bar 404 and a second sub-connection bar 405. The two ends of the first sub-connection bar 404 are respectively connected to the DC disconnect switch 301 and the battery cluster, and the two ends of the second sub-connection bar 405 are respectively connected to the converter.

[0045] See also Figure 3 In an optional embodiment of the present application, the cable assembly 40 includes a plurality of cable groups 406, one end of each cable group 406 is connected to the connection row 403, and the other end is connected to the battery cluster and / or the converter.

[0046] Specifically, each cable group 406 includes multiple cables 407. An insulating protective layer is provided on the surface of the cables 407 to separate the multiple cables 407. The cables 407 are arranged on opposite sides of the third chamber 113 to achieve isolation of strong electricity and weak electricity and reduce electromagnetic interference.

[0047] More specifically, each busbar may be provided with a cable group 406, the first sub-connecting bar 404 is directly connected to the DC isolating switch 301, one end of the cable group 406 is connected to the first sub-connecting bar 404, and the other end passes through the bottom of the cabinet 10 to be connected to the battery cluster; the second sub-connecting bar 405 is directly connected to the DC isolating switch 301, one end of the cable group 406 is connected to the second sub-connecting bar 405, and the other end passes through the bottom of the cabinet 10 to be connected to the converter (not shown), but the number of cable groups 406 on the connecting bar 403 is not limited to one group, and can be adaptively increased according to actual conditions, which shall be subject to actual application.

[0048] Furthermore, the third chamber 113 is also provided with a second surge protector 401, a fuse 402 and a grounding bar. The first chamber 111 includes a battery management system main control board 203, and the cable assembly 40 also includes a signal line. The second surge protector 401 is connected to the battery management system main control board 203 through the signal line, providing lightning protection for the DC power distribution assembly 30. The fuse 402 serves as a backup protection for the second surge protector 401, and provides fuse protection when the second surge protector 401 fails or has an internal short circuit. The grounding bar provides grounding protection for the energy storage integrated cabinet 200.

[0049] In an optional embodiment of the present application, the connecting bar 403 includes a positive bus 403a and a negative bus 403b, and the positive bus 403a and the negative bus 403b are respectively located on opposite sides of the third chamber 113, wherein an isolation plate 408 is also provided in the third chamber 113, and the isolation plate 408 is provided between the positive bus 403a and the negative bus 403b, for isolating the positive bus 403a and the negative bus 403b.

[0050] Specifically, the first sub-connection bar 404 and the second sub-connection bar 405 both include a positive bus bar 403a and a negative bus bar 403b, the positive bus bar 403a of the first sub-connection bar 404 and the second sub-connection bar 405 is located on one side of the third chamber 113, and the negative bus bar 403b of the first sub-connection bar 404 and the second sub-connection bar 405 is located on the other side of the third chamber 113, that is, arranged opposite to the positive bus bar 403a and the negative bus bar 403b of the first sub-connection bar 404 and the second sub-connection bar 405. The positive bus bar 403a and the negative bus bar 403b of the first sub-connection bar 404 are connected to the DC isolation switch 301 and the battery cluster, respectively, and the positive bus bar 403a and the negative bus bar 403b of the second sub-connection bar 405 are connected to the DC isolation switch 301 and the converter, respectively.

[0051] Specifically, the positive bus bar 403a of the first sub-connection bar 404 is the B+ connection bar of the battery cluster, and the negative bus bar 403b of the first sub-connection bar 404 is the B- connection bar of the battery cluster; the positive bus bar 403a of the second sub-connection bar 405 is the P+ connection bar of the inverter, and the negative bus bar 403b of the second sub-connection bar 405 is the P- connection bar of the inverter.

[0052] Furthermore, there is a gap between the positive busbar 403a and the negative busbar 403b, and the separator 408 is located at the gap, that is, between the positive busbar 403a and the negative busbar 403b, to prevent the positive busbar 403a and the negative busbar 403b in the cabinet from short-circuiting. The number of separators 408 is not limited in this application, and it is only used to prevent the positive busbar 403a and the negative busbar 403b in the cabinet from short-circuiting.

[0053] Furthermore, the cable assembly 40 also includes an insulating column 409, and the positive bus 403a and the negative bus 403b are connected to the insulating column 409 on the side away from the cabinet door 14. The insulating column 409 is configured to fix the positive bus 403a and the negative bus 403b into the third chamber 113. The insulating column 409 plays an insulating role to prevent the cabinet 10 and the positive bus 403a and the negative bus 403b from short circuiting.

[0054] See also Figure 2AIn an optional embodiment of the present application, the AC and control component 20 includes an AC incoming line circuit breaker 201 and multiple branch circuit breakers 202, and the AC incoming line circuit breaker 201 is connected to the multiple branch circuit breakers 202 respectively.

[0055] Specifically, the AC current is used to power the AC and control component 20. The AC power source may be, for example, AC power. The AC power supplies power to the AC incoming circuit breaker 201 and is connected to the AC incoming circuit breaker 201 via a cable. The AC incoming circuit breaker 201 controls the connection and disconnection of the AC power. The AC current flows into the AC incoming circuit breaker 201 and flows into the load device through multiple branch circuit breakers 202 to power the load device.

[0056] Exemplarily, the number of branch circuit breakers 202 may be 9, wherein a plurality of load devices are located in the integrated energy storage device, and the plurality of load devices are respectively connected to the branch circuit breakers 202, and the load devices respectively include a liquid cooling unit, a dehumidifier, a fire fan, a fire host, a lighting lamp, and a maintenance socket. One of the branch circuit breakers 202 is also connected to an uninterruptible power supply (UPS), and the uninterruptible power supply (UPS) is connected to other loads. The city power is stabilized by the uninterruptible power supply and then supplied to other loads. The branch circuit breaker 202 is also provided with a backup branch for backup when other branch circuit breakers 202 fail.

[0057] Exemplarily, the AC and control component 20 is also provided with a first surge protector 206 to provide lightning protection. The first surge protector 206 is connected to a branch circuit breaker 202 and is connected to the battery management system main control board 203 through a signal line.

[0058] Exemplarily, the height of the energy storage integrated cabinet 200 is 2300 mm, and the height of the AC incoming circuit breaker 201 is 1400 mm, but it is not limited thereto. This height is convenient for maintenance personnel to perform maintenance without the need for a ladder.

[0059] In an optional embodiment of the present application, the AC and control component 20 includes a battery management system main control board 203, and the battery management system main control board 203 is connected to the AC incoming line circuit breaker 201 and multiple branch circuit breakers 202 respectively.

[0060] Specifically, the battery system includes a battery management system main control board 203 and a battery management system slave control board, wherein the battery management system main control board 203 is located in the first chamber 111, and the battery management system slave control board is located in the integrated energy storage device. The battery management system main control board 203 is connected to the battery management system slave control board, and the battery management system main control board 203 is used to collect signals from the battery management system slave control board, collect signals such as current, voltage, and temperature of the battery cluster in the integrated energy storage device, collect signals of load equipment (such as liquid cooling units, fire fans, and fire host), monitor the operating status of each device, collect signals from the first surge protector 206 and the second surge protector 401, and initiate protection actions for abnormalities or faults.

[0061] In an optional embodiment of the present application, the AC and control component 20 also includes an uninterruptible power supply 204 and a backup power supply 205 connected to the uninterruptible power supply 204, wherein the uninterruptible power supply 204 is respectively connected to the branch circuit breaker 202 and the DC isolation switch 301.

[0062] Specifically, one of the branch circuit breakers 202 is connected to an uninterruptible power supply (UPS), and other loads are connected to the branch of the uninterruptible power supply 204. The city power flows into the uninterruptible power supply 204 through the branch circuit breaker 202 for voltage stabilization and supplies other loads, such as high-voltage boxes, blinds, sensors, and debugging sockets. The uninterruptible power supply 204 is also connected to the DC isolation switch 301 to provide energy for opening or closing the DC isolation switch 301. The uninterruptible power supply 204 also has a spare branch.

[0063] Furthermore, the uninterruptible power supply 204 is, for example, an online uninterruptible power supply 204, and the backup power supply 205 is connected to the uninterruptible power supply 204. When the city power is cut off, the backup power supply 205 supplies power to the uninterruptible power supply 204 to ensure that the battery management system main control board 203 and the battery management system slave control board or DC distribution component 30 are not cut off, so as to monitor and protect the system and maintain the stability and safety of the system.

[0064] Exemplarily, a debugging socket and a current transformer 207 are also provided in the first chamber 111. The debugging socket is connected to the uninterruptible power supply 204 to provide a power interface for computers and other devices during on-site debugging. The current transformer 207 collects the power consumption of the AC and control component 20 to measure the electricity cost and energy consumption.

[0065] In an optional embodiment of the present application, a cable hole (not shown) is provided on one side of the cabinet 10 away from the first chamber 111, and one end of the cable group 406 passes through the cable hole and is connected to the battery cluster and / or the converter. The wiring of the external battery system, fire protection system, temperature control system, lighting system, converter, and EMS control system are all introduced from the cable hole, so that the wiring is unified and easy to inspect and maintain. A mounting base is also provided at the bottom of the cabinet 10 away from the first chamber 111 to facilitate the installation of the cabinet 10.

[0066] Furthermore, wiring troughs (not shown) are provided on opposite sides of the cabinet 10 to facilitate the signal line from the cable assembly 40 to be connected to the first chamber 111, and to facilitate the other cables or signal lines connected to the AC and control assembly 20 to be connected to the first chamber 111, so as to facilitate maintenance and installation. A terminal block is also provided in the first chamber 111.

[0067] See also Figure 4 , the city power is connected to the AC incoming line circuit breaker 201 and supplies energy, the AC incoming line circuit breaker 201 is connected to multiple branch circuit breakers 202 and controls the opening and closing of multiple branch circuit breakers 202, the number of branch circuit breakers 202 is 9, and they are connected to multiple load devices to form 9 branch lines. The load equipment includes a liquid cooling unit A, a dehumidifier B, a fire fan C, a fire host D, a lighting lamp E, and an inspection socket F. The branch line L1, the branch line L2, the branch line L3, the branch line L4, the branch line L5, and the branch line L6 are connected to the liquid cooling unit A, the dehumidifier B, the fire fan C, the fire host D, the lighting lamp E, and the inspection socket F in sequence to supply energy to the load equipment. The branch line L7 is connected to the uninterruptible power supply 204, the branch line L8 is a backup line, and the branch line L9 is connected to the first surge protector 206 in the first chamber 111 to provide lightning protection.

[0068] Furthermore, the uninterruptible power supply 204 is respectively connected to multiple loads, including a high-voltage box G, a shutter H, a sensor I and a debugging socket J. The uninterruptible power supply 204 includes 6 branch lines, namely branch line L10, branch line L11, branch line L12, branch line L13, branch line L14 and branch line L15. Branch line L10, branch line L11, branch line L12 and branch line L13 are respectively connected to the high-voltage box G, the shutter H, the sensor I and the debugging socket J. Branch line L14 is a backup line. Branch line L15 is connected to the second surge protector 401 located in the third chamber 113 to provide lightning protection.

[0069] Specifically, when the city power is normal, the city power supplies power to the load equipment through the AC incoming line circuit breaker 201 and multiple branch circuit breakers 202, wherein the uninterruptible power supply 204 connected to the branch line L7 stabilizes the city power and supplies energy to the load. However, when the city power is disconnected, in order to maintain the stability of the system, the backup power supply 205 supplies energy to the uninterruptible power supply 204 and the load. In one embodiment, the backup power supply 205 can supply energy for 30 minutes, while ensuring that the DC isolation switch 301 has energy to open or close, thereby ensuring the safety of the energy storage integrated cabinet 200.

[0070] See also Figure 5 The DC isolating switch 301 is connected to the battery cluster, and the DC isolating switch 301 is used to cut off or connect the connection with the battery cluster. A second surge protector 401 is arranged in the third chamber 113, and the second surge protector 401 is connected to the DC isolating switch 301 through a connecting bar 403 to provide lightning protection. The DC isolating switch 301 is connected to the converter through P+ and P- of the second sub-connecting bar 405.

[0071] The positive bus bar 403a of the first sub-connection bar 404 is the B+ connection bar of the battery cluster, and the negative bus bar 403b of the first sub-connection bar 404 is the B- connection bar of the battery cluster; the positive bus bar 403a of the second sub-connection bar 405 is the P+ connection bar of the inverter, and the negative bus bar 403b of the second sub-connection bar 405 is the P- connection bar of the inverter.

[0072] The integrated energy storage device provided by the present application includes at least the following working processes or principles: an electrical compartment; an energy storage integrated cabinet, which is arranged in the electrical compartment; the energy storage integrated cabinet includes a cabinet body, which includes a first chamber, a second chamber and a third chamber arranged at intervals along a first direction; the energy storage integrated cabinet also includes an AC and control component, a DC distribution component and a cable component; the AC and control component is located in the first chamber; the DC distribution component is located in the second chamber; and the cable component is located in the third chamber. The chambers of the DC distribution component and the cable component are interconnected, so that the connecting row or signal line of the cable component can be connected to the DC isolation switch of the DC distribution component. The AC and control component, the DC distribution component and the cable component are integrated in the energy storage integrated cabinet, which improves the space utilization rate of the electrical compartment. When any of the AC and control component, the DC distribution component and the cable component fails, it is only necessary to open the energy storage integrated cabinet for repair, which is convenient for maintenance personnel to perform inspection and maintenance.

[0073] In summary, although the present application has been disclosed as above with preferred embodiments, the above preferred embodiments are not intended to limit the present application. Ordinary technicians in this field can make various changes and modifications without departing from the spirit and scope of the present application. Therefore, the scope of protection of the present application shall be based on the scope defined in the claims.

Claims

1. An energy storage integrated device, characterized in that: include: Electrical compartment; An energy storage integrated cabinet is arranged in the electrical cabin; the energy storage integrated cabinet comprises a cabinet body, and the cabinet body comprises a first chamber, a second chamber and a third chamber which are arranged at intervals along a first direction; The energy storage integrated cabinet also includes an AC and control component, a DC power distribution component and a cable component; the AC and control component is located in the first chamber; the DC power distribution component is located in the second chamber; and the cable assembly is located in the third chamber.

2. The energy storage integrated device according to claim 1, characterized in that: The cabinet includes a first partition and a second partition arranged at intervals along the first direction, and the first partition and the second partition divide the cabinet into the first chamber, the second chamber, and the third chamber.

3. The energy storage integrated device according to claim 2, characterized in that: The second partition plate is provided with a communication groove along the first direction, and the communication groove is respectively connected with the second chamber and the third chamber.

4. The energy storage integrated device according to claim 3, characterized in that: The cable assembly includes a plurality of connection rows; The DC power distribution assembly includes a DC isolating switch, and the plurality of connecting bars are respectively connected to the DC isolating switches.

5. The energy storage integrated device according to claim 4, characterized in that: The cable assembly includes a plurality of cable groups, one end of each of which is respectively connected to the plurality of connecting bars, and the other end of each of which is connected to a battery cluster and / or an inverter.

6. The energy storage integrated device according to claim 4, characterized in that: The connecting bar includes a positive bus bar and a negative bus bar, and the positive bus bar and the negative bus bar are located on opposite sides of the third chamber, wherein an isolation plate is provided in the third chamber, and the isolation plate is provided between the positive bus bar and the negative bus bar.

7. The energy storage integrated device according to claim 4, characterized in that: The AC and control components include an AC incoming line circuit breaker and a plurality of branch circuit breakers, and the AC incoming line circuit breaker is respectively connected to the plurality of branch circuit breakers.

8. The energy storage integrated device according to claim 7, characterized in that: The AC and control component includes a battery management system main control board, and the battery management system main control board is respectively connected to the AC incoming line circuit breaker and the plurality of branch circuit breakers.

9. The energy storage integrated device according to claim 8, characterized in that: The AC and control component also includes an uninterruptible power supply and a backup power supply connected to the uninterruptible power supply, wherein the uninterruptible power supply is connected to the branch circuit breaker and the DC isolation switch respectively.

10. The energy storage integrated device according to claim 4, characterized in that: A cable hole is provided on one side of the cabinet away from the first chamber, and one end of the cable group passes through the cable hole and is connected to the battery cluster and / or the converter.

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