Sinking wall type energy storage device

Abstract

The utility model provides a kind of wall type energy storage device, comprising: box, the box is installed in underground, the box includes mutually isolated battery cabin and electrical cabin, the bottom surface of the box is provided with drainage ditch, the battery cabin has battery cluster, the electrical cabin has distribution busbar cabinet, battery cluster is electrically connected with distribution busbar cabinet;Reservoir, the reservoir is installed in underground, and the reservoir is connected with drainage ditch pipeline;Reservoir, the reservoir is installed in underground, and the reservoir is connected with battery cabin pipeline;Control cabin, the control cabin is installed on ground, and the control cabin includes centralized fire alarm device, PCS energy storage step-up converter integrated machine, and the centralized fire alarm device is electrically connected with fire-fighting sensor in the box, and the PCS energy storage step-up converter integrated machine is electrically connected with distribution busbar cabinet.The utility model reduces ground use area by setting energy storage device in underground.

Description

Technical Field

[0001] This utility model relates to the field of energy storage container technology, specifically to a wall-mounted energy storage device. Background Technology

[0002] Lithium-ion battery energy storage containers achieve efficient and stable energy storage and release through lithium-ion cycling, modular design, intelligent management, and safety protection, similar to large smart power banks. The containers typically have dimensions of 6058×2438×2896mm (20 feet), occupying a relatively large area.

[0003] With the development of energy storage technologies on the market, the utilization rate of land area is getting higher and higher. However, lithium battery energy storage containers will always occupy land on the ground, resulting in high land use costs. In addition, if the battery compartment is placed on the ground in the form of a container, the impact area of ​​the accident will be very large. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing a wall-mounted energy storage device, comprising:

[0005] The enclosure is installed underground and includes a battery compartment and an electrical compartment that are isolated from each other. The battery compartment contains battery clusters, and the electrical compartment contains a power distribution combiner cabinet. The battery clusters are electrically connected to the power distribution combiner cabinet.

[0006] A water storage tank, which is installed underground and connected to the container via pipes;

[0007] A reservoir, which is installed underground, and is connected to the battery compartment via pipelines;

[0008] The control cabin is installed on the ground and includes a centralized fire alarm device and a PCS energy storage boost converter integrated unit. The centralized fire alarm device is electrically connected to fire-fighting sensors inside the cabin, and the PCS energy storage boost converter integrated unit is electrically connected to the power distribution combiner cabinet.

[0009] Furthermore, the battery compartment and the electrical compartment are isolated by a firewall.

[0010] Furthermore, the battery cluster includes multiple cluster frame groups, each cluster frame group includes a cluster-level high-voltage box and multiple battery PACK packs, the input terminal of the cluster-level high-voltage box is connected to the output terminal of the multiple battery PACK packs respectively, and the output terminal of the cluster-level high-voltage box is connected to the input terminal of the power distribution combiner cabinet.

[0011] Furthermore, a PACK-level directional ventilation device is installed inside the battery compartment. One end of the PACK-level directional ventilation device leads to the battery cluster, and the other end leads to the ground. The PACK-level directional ventilation device is used to balance the air pressure inside the battery compartment.

[0012] Furthermore, a pump is installed on the pipe between the water storage tank and the container, and the pump is used to pump the water accumulated in the underground container into the water storage tank.

[0013] Furthermore, a sliding top plate and a slide rail are installed on the top of the box. The two ends of the sliding top plate are respectively connected to the two ends of the top of the box through the slide rail, and the sliding top plate is moved on the slide rail by a motor to realize the opening and closing of the top of the box.

[0014] Furthermore, an electric ball valve is installed on the pipeline between the reservoir and the battery compartment.

[0015] Furthermore, the centralized fire alarm device is electrically connected to the electric ball valve.

[0016] Furthermore, a ladder connecting the ground and the bottom of the box is installed along the wall of the box.

[0017] Furthermore, the control cabin also includes a liquid-cooled unit and a central air conditioning unit, and the centralized fire alarm device, the PCS energy storage boost converter integrated unit, the liquid-cooled unit and the central air conditioning unit are isolated by a firewall.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. The wall-mounted energy storage device of this utility model has the advantages of high energy density and flexible installation. It can improve the stability of the power system and open up new paths for the efficient use of energy. By burying the main body of energy storage (box, water tank, reservoir) underground, the land area occupied by ground facilities is greatly reduced, the land use cost is reduced, and the land space utilization rate is improved.

[0020] 2. A centralized fire alarm system monitors the battery compartment environment in real time. Upon detecting any anomalies (such as excessive gas concentration or fire), it automatically activates the reservoir's electric ball valve for rapid remote fire suppression. The battery compartment and electrical compartment are isolated by a firewall. The battery clusters are managed using cluster-level high-pressure boxes, effectively suppressing the risk of thermal runaway. A PACK-level directional ventilation system balances the air pressure in the battery compartment, promptly removing high-temperature gases to prevent pressure buildup and potential explosions.

[0021] 3. Utilizing the stable low-temperature environment underground, combined with liquid cooling units (independent cluster cooling) and central air conditioning units (cabin temperature and humidity control), battery thermal management energy consumption is reduced, extending lifespan. The enclosure and water storage tank are linked, with pumps automatically draining accumulated water; waterproof coating on the walls and a sliding roof ventilation design ensure dry operation of the equipment.

[0022] 4. The motor-driven sliding top plate, in conjunction with the slide rail, enables the top of the enclosure to be opened quickly, facilitating the maintenance of underground equipment.

[0023] 5. The ground control cabin integrates fire alarm, PCS converter, and temperature control systems, and isolates each functional module through a firewall to simplify operation and maintenance management.

[0024] 6. The underground concealment makes it suitable for special fields such as military applications; the highly integrated design of fire protection, liquid cooling, and electrical systems supports large-scale and rapid deployment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structural principle of this utility model.

[0026] Figure 2 This is a structural schematic diagram of an embodiment of the present utility model.

[0027] Explanation of reference numerals in the attached diagram: 1-Enclosure; 11-Battery compartment; 111-Battery cluster; 1111-Cluster frame assembly; 1112-Cluster-level high-voltage box; 1113-Battery PACK pack; 112-PACK-level directional ventilation device; 12-Electrical compartment; 121-Power distribution combiner cabinet; 13-Sliding top plate; 131-Motor; 132-Slide rail; 14-Ladder; 15-Fire wall; 2-Water storage tank; 21-Pump; 3-Reservoir; 31-Electric ball valve; 4-Control compartment; 41-Centralized fire alarm device; 42-PCS energy storage booster converter integrated unit; 43-Liquid cooling unit; 44-Central air conditioning unit; 16-Rodent-proof mesh; 17-Camera; 18-Explosion-proof lighting. Detailed Implementation

[0028] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0029] like Figure 1 The diagram shown is a schematic of a wall-mounted energy storage device. Figure 2 This is a schematic diagram of the embodiment. The schematic diagram of the wall-mounted energy storage device is not completely consistent with the schematic diagram of the embodiment, and there is a difference in the number of repeatable structures. The specific structures include:

[0030] The enclosure 1 is installed underground and includes a battery compartment 11 and an electrical compartment 12, which are isolated from each other by a firewall 15. The firewall 15 can be made of commercially available composite materials. A drainage ditch is provided on the bottom surface of the enclosure 1. The battery compartment 11 contains battery clusters 111, and the electrical compartment 12 contains a power distribution combiner cabinet 121. The battery clusters 111 are electrically connected to the power distribution combiner cabinet 121. The functions of the power distribution combiner cabinet 121 are: 1. parallel current combining of battery clusters 111; 2. measurement and protection of DC lines; 3. electrical connection with the PCS energy storage boost converter integrated unit 42; 4. integrated control and management functions; 5. safety protection measures. The battery cluster 111 includes multiple cluster frame groups 1111. Each cluster frame group 1111 includes a cluster-level high-voltage box 1112 and multiple battery packs 1113. The input terminal of the cluster-level high-voltage box 1112 is connected to the output terminal of each battery pack 1113, and the output terminal of the cluster-level high-voltage box 1112 is connected to the input terminal of the power distribution combiner cabinet 121. The cluster-level high-voltage box 1112 manages the main input / output current, protection, and control of the entire cluster frame group 1111. A PACK-level directional exhaust device 112 is installed inside the battery compartment 11. The PACK-level directional exhaust device 112 is an independent ventilation system designed specifically for individual battery packs in the battery compartment. It achieves rapid exhaust of thermal runaway gases and pressure balance within the compartment through directional airflow control. One end of the PACK-level directional exhaust device 112 leads to the battery cluster 111, and the other end leads to the ground. The top of the enclosure 1 is equipped with a sliding top plate 13 and slide rails 132. Two slide rails 132 are respectively installed at both ends of the top of the enclosure 1. The two ends of the sliding top plate 13 are connected to the two ends of the top of the enclosure 1 via the slide rails 132. A motor 131 controls the sliding top plate 13 to move along the slide rails, thereby opening and closing the top of the enclosure 1 for easy maintenance. A ladder 14 connecting the ground and the bottom of the enclosure 1 is installed along the wall side of the enclosure 1. The sliding top plate 13 has an opening to allow access to the ground via the ladder 14.

[0031] Water storage tank 2 is installed underground and is connected to the drainage ditch pipe on the bottom of the box body 1. A pump 21 is installed on the pipe between the water storage tank 2 and the drainage ditch. The pump 21 is used to pump the water accumulated in the underground drainage ditch into the water storage tank 2.

[0032] Reservoir 3 is installed underground and connected to battery compartment 11 via a pipeline. An electric ball valve 31 is installed on the pipeline between reservoir 3 and battery compartment 2. The centralized fire alarm device 41 is electrically connected to the electric ball valve 31. When the centralized fire alarm device 41 detects a fire, it can automatically control the electric ball valve 31 to open, using the water in reservoir 3 for fire extinguishing. Multiple reservoirs 3 can be installed, depending on the actual situation. The drainage ditch is used to drain the accumulated water and pump it into the water storage tank 2.

[0033] The control compartment 4, installed on the ground, includes a centralized fire alarm device 41, a PCS energy storage booster converter integrated unit 42, a liquid-cooled unit 43, and a central air conditioning unit 44. The centralized fire alarm device 41 is electrically connected to fire-fighting sensors inside the enclosure 1, and the PCS energy storage booster converter integrated unit 42 is electrically connected to the power distribution combiner cabinet 121. The liquid-cooled pipes of the liquid-cooled unit lead to independent battery racks inside the battery compartment, managing battery temperature through liquid cooling. The central air conditioning unit 44's pipes lead to the electrical compartment 12 and the battery compartment 11 for temperature and humidity regulation. The centralized fire alarm device 41 is connected to the electrical compartment and battery compartment via wiring harnesses. When problems such as excessive hydrogen, carbon monoxide, methane, or electrical fires occur in the compartments, various sensors monitor the situation and issue timely fire alarms, improving safety. The PCS energy storage boost converter integrated unit 42 is connected to the electrical compartment via wiring harness, converting the DC power output from the battery into stable AC power required by the power grid, achieving efficient and stable energy storage and release. The centralized fire alarm device 41, the PCS energy storage boost converter integrated unit 42, the liquid cooling unit 43, and the central air conditioning unit 44 are also isolated by firewalls.

[0034] Figure 1 The dashed lines represent wiring harnesses or conduits used to connect the various components. All walls of the floor structure are waterproofed.

[0035] In addition, it is equipped with a rodent-proof mesh 16, a camera 17, and an explosion-proof light 18. More functional components can be installed according to actual needs.

[0036] This utility model provides an embodiment, such as Figure 2 As shown, in this embodiment, the drainage ditch in the housing 1 is also connected to the ground via a pipe, allowing pump 21 to pump accumulated water to the ground. This embodiment only includes one water reservoir 3, one electrical compartment 12, and two battery compartments 11. The slide rail 132 is relatively long, extending from the top of the housing 1 to the adjacent ground, allowing the sliding top plate 13 to be completely moved to the adjacent ground. The wiring harness and pipework layout in this embodiment is referenced... Figure 1 .

[0037] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the accompanying drawings and according to the specific circumstances.

[0038] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A wall-mounted energy storage device, characterized in that, include: The enclosure (1) is installed underground. The enclosure (1) includes a battery compartment (11) and an electrical compartment (12) that are isolated from each other. The battery compartment (11) contains a battery cluster (111), and the electrical compartment (12) contains a power distribution combiner cabinet (121). The battery cluster (111) is electrically connected to the power distribution combiner cabinet (121). Water storage tank (2), the water storage tank (2) is installed underground, and the water storage tank (2) is connected to the box (1) by pipe; The reservoir (3) is installed underground and is connected to the battery compartment (11) by pipes; The control cabin (4) is installed on the ground. The control cabin (4) includes a centralized fire alarm device (41) and a PCS energy storage boost converter integrated machine (42). The centralized fire alarm device (41) is electrically connected to the fire-fighting sensors in the box (1). The PCS energy storage boost converter integrated machine (42) is electrically connected to the power distribution combiner cabinet (121).

2. The wall-mounted energy storage device according to claim 1, characterized in that: The battery compartment (11) and the electrical compartment (12) are isolated by a firewall (15).

3. The wall-mounted energy storage device according to claim 1, characterized in that: The battery cluster (111) includes multiple cluster rack groups (1111), each cluster rack group (1111) is equipped with a cluster-level high voltage box (1112) and multiple battery PACK packs (1113). The input terminal of the cluster-level high voltage box (1112) is connected to the output terminal of the multiple battery PACK packs (1113), and the output terminal of the cluster-level high voltage box (1112) is connected to the input terminal of the power distribution combiner cabinet (121).

4. The wall-mounted energy storage device according to claim 1, characterized in that: The battery compartment (11) is equipped with a PACK-level directional ventilation device (112). One end of the PACK-level directional ventilation device (112) is connected to the battery cluster (111), and the other end of the PACK-level directional ventilation device (112) is connected to the ground. The PACK-level directional ventilation device (112) is used to balance the air pressure in the battery compartment (11).

5. The wall-mounted energy storage device according to claim 1, characterized in that: A pump (21) is installed on the pipe between the water storage tank (2) and the box (1), and the pump (21) is used to pump the water in the box (1) located underground into the water storage tank (2).

6. The wall-mounted energy storage device according to claim 1, characterized in that: The top of the box (1) is equipped with a sliding top plate (13) and a slide rail (132). The two ends of the sliding top plate (13) are connected to the two ends of the top of the box (1) through the slide rail (132), and the sliding top plate (13) is controlled by a motor (131) to move on the slide rail to realize the opening and closing of the top of the box (1).

7. The wall-mounted energy storage device according to claim 1, characterized in that: An electric ball valve (31) is installed on the pipeline between the reservoir (3) and the battery compartment (11).

8. The wall-mounted energy storage device according to claim 7, characterized in that: The centralized fire alarm device (41) is electrically connected to the electric ball valve (31).

9. The wall-mounted energy storage device according to claim 1, characterized in that: A ladder (14) connecting the ground and the bottom of the box (1) is installed on the side of the box (1).

10. The wall-mounted energy storage device according to claim 1, characterized in that: The control cabin (4) also includes a liquid cooling unit (43) and a central air conditioning unit (44).

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