Energy storage cabin and energy storage system

Abstract

The utility model provides an energy storage cabin and an energy storage system, the energy storage cabin comprises a cabin body, a plurality of battery clusters and a plurality of high-voltage boxes are arranged in the cabin body, and at least two battery clusters share one high-voltage box, so that the at least two battery clusters can charge and discharge the same high-voltage box at the same time; a cabin door is further arranged on the first side wall of the cabin body and extends in the length direction of the first side wall. According to the energy storage cabin provided by the invention, the at least two battery clusters are connected to one high-voltage box, so that the energy density is high, parts and electrical components are reduced, connecting wire harnesses of all the components are simplified, wiring can be concentrated on one side close to the cabin door, only the cabin door needs to be arranged on one side of the cabin body, the overall layout is simpler and more convenient, and the cost is reduced. The energy storage cabin system of an application scene can be formed by symmetrically arranging the at least two energy storage cabins with respect to the symmetric axis or symmetrically arranging the energy storage cabins with respect to the symmetric axis.

Description

Technical Field

[0001] This utility model patent relates to the field of energy storage technology, specifically to an energy storage cabin and an energy storage system. Background Art

[0002] With the rapid development of renewable energy, the power system's demand for energy storage technology is growing. The large-scale deployment of wind and photovoltaic power generation, in particular, has significantly increased demand for energy storage systems for ancillary services such as peak and frequency regulation, and output smoothing. As a new flexible regulation resource, energy storage will play a vital role in accommodating renewable energy, regulating frequency, and shifting peaks and valleys.

[0003] The energy storage container is a highly integrated energy storage device that can accommodate multiple energy storage battery clusters and connect to external devices through interfaces. It has the characteristics of high integration and good scalability.

[0004] With advancements in energy storage technology, energy storage container systems are developing towards greater safety and higher energy density. However, traditional energy storage container systems suffer from excessive components, resulting in numerous and complex wiring harnesses connecting various devices, making them unable to meet growing market demand. Utility Model Content

[0005] The utility model aims to provide an energy storage cabin and an energy storage system to solve the problem of excessive installation parts in existing energy storage systems.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: providing an energy storage cabin, comprising a cabin body, wherein at least two battery clusters and a plurality of high-voltage boxes are arranged in the cabin body, wherein at least two of the battery clusters share one high-voltage box, so that at least two of the battery clusters charge and discharge the one high-voltage box simultaneously; and

[0007] The hatch is connected to the first side wall of the cabin body and extends along the length direction of the first side wall.

[0008] In one embodiment, connecting members are provided on the first side wall of the cabin and the second side wall opposite to the first side wall, and the connecting members on the first side wall are respectively located at the left edge position close to the first side wall and the right edge position close to the first side wall; the connecting members on the second side wall are respectively located at the left edge position close to the second side wall and the right edge position close to the second side wall.

[0009] In one embodiment, the connecting member comprises:

[0010] at least two hanging shafts arranged side by side, one end of each of the hanging shafts being connected to the first side wall or the second side wall; and

[0011] The baffles are respectively connected to the other ends of the suspension shafts and extend radially along the suspension shafts.

[0012] In one embodiment, each battery cluster includes at least two battery packs, and the battery packs are arranged on a support frame or a support tray.

[0013] In one embodiment, the system further comprises a primary liquid cooling pipeline, a secondary liquid cooling pipeline, and a tertiary liquid cooling pipeline, wherein the primary liquid cooling pipeline is arranged at the bottom of the cabin, the secondary liquid cooling pipeline is arranged on a side of the cabin near the cabin door, and the tertiary liquid cooling pipeline is located inside the cabin and connected to the battery cluster;

[0014] The first-stage liquid cooling inlet and outlet pipelines, the second-stage liquid cooling inlet and outlet pipelines, and the third-stage liquid cooling inlet and outlet pipelines are connected to each other through quick-plug interfaces.

[0015] In one embodiment, a dehumidifier is provided on the cabin door for discharging moisture in the cabin; a drain port is provided at the bottom of the cabin for discharging condensed water in the dehumidifier.

[0016] In one embodiment, a fire sprinkler pipe is provided on the top inner side of the cabin, and a gap is provided between the fire sprinkler pipe and the battery cluster.

[0017] In one embodiment, a plurality of fire sprinkler nozzles are provided on the fire sprinkler pipe, and the plurality of fire sprinkler nozzles are all circular tubular water mist nozzles.

[0018] In one embodiment, the top of the cabin is provided with a corrugated plate structure and a water guide groove connected to the corrugated plate structure, and the water guide groove is located at an edge position of the top of the cabin.

[0019] In one embodiment, a fire control cabinet is further included outside the cabin, the fire control cabinet includes a fire control host, and the fire control host is used to control the fire sprinkler pipe to spray the battery cluster; the fire control cabinet is provided with a fire emergency start-stop device and a manual alarm device, and the fire emergency start-stop device and the manual alarm device are both connected to the fire control host.

[0020] The present invention also provides an energy storage system, comprising at least two of the above-mentioned energy storage compartments, wherein the at least two energy storage compartments are symmetrically arranged about a symmetry axis or symmetrically arranged about a symmetry center.

[0021] The beneficial effects of the utility model are:

[0022] The energy storage cabin has a high energy density, and multiple battery clusters share one high-voltage box. Compared with energy storage cabins of the same capacity, it reduces the number of parts and electrical components, while also reducing and simplifying the connection harnesses of each device, so that wiring can be concentrated on the side close to the cabin door. Only a cabin door needs to be set on one side of the cabin body, making the overall layout simpler and more convenient, saving materials and installation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be described in more detail below based on embodiments with reference to the accompanying drawings.

[0024] Figure 1 This is a front view of the energy storage cabin provided in an embodiment of the present application;

[0025] Figure 2 This is a schematic diagram of the three-dimensional structure of the energy storage cabin provided in an embodiment of the present application;

[0026] Figure 3 This is a top view of the energy storage cabin provided in an embodiment of the present application;

[0027] Figure 4 This is a schematic diagram of the three-dimensional structure of the connecting member provided in an embodiment of the present application;

[0028] Figure 5 1 is a schematic diagram of an energy storage system 100 provided in an embodiment of the present application;

[0029] Figure 6 Schematic diagram of an energy storage system 200 provided in an embodiment of the present application.

[0030] Reference numerals:

[0031] 10 - Cabin; 101 - First side wall; 102 - Second side wall; 103 - Third side wall; 104 - Fourth side wall; 11 - Cabin door; 12 - Corrugated board structure; 13 - Water channel; 14 - Drain port

[0032] 20-battery cluster; 21-battery pack

[0033] 30-High-voltage box

[0034] 40-liquid cooling pipeline; 401-first-stage liquid cooling pipeline; 402-second-stage liquid cooling pipeline; 403-third-stage liquid cooling pipeline

[0035] 50-connecting member; 51-suspension shaft; 52-baffle

[0036] 60-Fire protection system; 61-Exhaust fan; 62-Inlet louvers; 63-Fire sprinkler pipes; 64-Fire extinguishing device; 631-Fire sprinkler nozzles; 641-Fire gas tanks

[0037] 70-Dehumidifier

[0038] 100, 200-Energy Storage System

[0039] Y-axis of symmetry

[0040] O-symmetry center DETAILED DESCRIPTION

[0041] The present invention will be further described below with reference to the accompanying drawings.

[0042] like Figures 1 to 6 As shown, the first aspect of an embodiment of the present application provides an energy storage cabin, including a cabin body 10 and a cabin door 11, wherein more than two battery clusters 20 and multiple high-voltage boxes 30 are arranged in the cabin body 10, wherein at least two battery clusters 20 share one high-voltage box 30, so that at least two battery clusters 20 supply discharge to one high-voltage box 30 at the same time; the cabin door 11 is connected to the first side wall 101 of the cabin body 10 and extends along the length direction of the first side wall 101.

[0043] Preferably, the cabin 10 is provided with 12 battery clusters 20 and 6 high-voltage boxes 30. The high-voltage boxes 30 are arranged side by side at the bottom of the cabin 10. Each high-voltage box 30 is connected to two battery clusters 20. The two battery clusters 20 are supported by brackets and placed on the high-voltage box 30. The two battery clusters 20 are connected to the high-voltage box 30 in parallel. The battery cluster 20 contains four battery packs 21, and the battery packs 21 in the battery cluster 20 are connected in series. Compared with the existing technology, this layout of battery clusters 20 and high-voltage boxes 30 can be used in conjunction with battery packs 21 with higher rated voltages, thereby increasing the energy density of the energy storage cabin and simplifying the components and parts by 50%, making the wiring in the cabin simpler.

[0044] In one embodiment, the cabin 10 includes four sidewalls: a first sidewall 101, a second sidewall 102 disposed relatively parallel to the first sidewall 101, a third sidewall 103, and a fourth sidewall 104 disposed relatively parallel to the third sidewall 103. The space enclosed by these four sidewalls constitutes the interior of the energy storage cabin. A hatch 11 is connected to the first sidewall 101 of the cabin 10 and extends along its length. One or more hatches 11 may be provided depending on the size of the cabin 10, making it easy to open the hatch 11 to repair or replace components within the cabin 10.

[0045] In one embodiment, connecting members 50 are provided on the first side wall 101 of the cabin body 10 and the second side wall 102 which is relatively parallel to the first side wall 101. The connecting members 50 on the first side wall 101 are respectively located near the left edge position of the first side wall 101 and near the right edge position of the first side wall 101; the connecting members 50 on the second side wall 102 are respectively located near the left edge position of the second side wall 102 and near the right edge position of the second side wall 102.

[0046] The connecting member 50 includes at least two suspension shafts 51 arranged side by side, one end of each suspension shaft 51 is connected to the first side wall 101 or the second side wall 102; and a baffle 52, which is respectively connected to the other end of the suspension shaft 51 and extends radially along the suspension shaft 51.

[0047] Specifically, when the energy storage cabin needs to be moved, the lifting shaft 51 can be connected to the external lifting tool respectively, and the energy storage cabin can be lifted and moved by the external lifting tool. The baffle 52 is used to limit the movement of the external lifting tool to prevent the external lifting tool from falling and damaging the energy storage cabin during the movement of the cabin body 10.

[0048] In one embodiment, the energy storage compartment is equipped with liquid cooling circuits, including a primary cooling circuit 401, a secondary cooling circuit 402, and a tertiary cooling circuit 403. The primary cooling circuit 401 is located at the bottom of the compartment 10, the secondary cooling circuit 402 is located on the side of the compartment 10 near the door 11, and the tertiary cooling circuit 403 is located inside the compartment 10 and connected to the battery packs 21 within the battery cluster 20. Coolant flows through the cooling circuits, precisely cooling the battery packs 21 through convection heat transfer, ensuring that the battery packs 21 operate within the optimal temperature range and extending their service life.

[0049] In one embodiment, the first-stage liquid cooling pipeline 401, the second-stage liquid cooling pipeline 402, and the third-stage liquid cooling pipeline 403 are connected to each other via quick-connect interfaces. The quick-connect interfaces can be connected by a cannula connection, a threaded connection, or a snap connection.

[0050] In one embodiment, a dehumidifier 70 is provided on the inner side of the cabin door 11 to discharge moisture in the energy storage cabin, effectively preventing condensation in the cabin, ensuring that the internal air is dry, and allowing the entire cabin body 10 to operate in a suitable environment, thereby reducing subsequent equipment maintenance costs.

[0051] In one embodiment, the cabin 10 further includes a fire protection system 60, which includes an exhaust fan 61, air inlet louvers 62, a fire sprinkler line 63, and a fire extinguishing device 64. The exhaust fan 61 is mounted on a fourth side wall 104 (not shown) that is relatively parallel to the third side wall 103. The air inlet louvers 62 are located diagonally opposite the exhaust fan and are mounted on the cabin door 11. In an emergency, the exhaust fan 61 and air inlet louvers 62 can be opened to improve air circulation within the energy storage cabin and quickly expel smoke from the cabin.

[0052] A fire sprinkler line 63 is also installed at the top of the energy storage compartment. This line is located at the top of the compartment 10, with sufficient clearance between it and the battery cluster 20 to ensure that water can be sprayed out. Multiple fire sprinkler heads 631 are also installed on this line. These nozzles are spaced axially along the line. These nozzles are all circular, tubular water mist nozzles, capable of evenly spraying water over a wide area, quickly covering the entire compartment.

[0053] The fire extinguishing device 64 includes a fire gas tank 641 and a fire gas pipeline (not shown in the figure). The fire gas tank 641 is placed flat on the bottom of the cabin 10 to reduce the space occupied in the cabin. The fire gas tank 641 is connected to the fire gas pipeline. When a fire occurs, the gas in the fire gas tank can be evenly transported to the entire cabin 10 along the fire gas pipeline.

[0054] In one embodiment, the fire protection system 60 further includes a fire control cabinet located outside the energy storage compartment 10. The fire control cabinet includes a fire control host, which is used to control the fire sprinkler pipe 63 to spray the battery pack 21 and the fire gas tank 641 to release fire gas. Specifically, in an emergency, the fire control host can activate either the fire sprinkler pipe 63 or the fire gas pipe individually for water or gas protection, or can activate both the fire sprinkler pipe 63 and the fire gas pipe simultaneously for both water and gas protection.

[0055] In one embodiment, the fire control cabinet is equipped with a fire emergency start-stop device and a manual alarm device, both of which are connected to the fire control host. The fire emergency start-stop device can manually activate the fire sprinkler pipe 63 or fire gas pipeline when the automatic fire system fails or when a fire warning is manually determined to be earlier than the fire warning. After the activation, the fire sprinkler pipe 63 or fire gas pipeline can also be manually stopped. When triggered, the manual alarm device can emit a piercing alarm to warn personnel to stay away from the energy storage compartment.

[0056] In one embodiment, a drain port 14 is provided at the bottom of the cabin 10 , and its function is to drain the condensed water in the dehumidifier 70 in a timely manner.

[0057] In one embodiment, the top of the hull 10 is provided with a corrugated board structure 12 and a water channel 13 connected to the corrugated board structure 12. The water channel 13 is located at the edge of the top of the hull 10 and is used to guide water from the top of the hull to the four corners outside the hull 10. The water flows along the corners to the ground, preventing rainwater from the top of the hull 10 from flowing toward the four side walls and hatch 11 of the hull 10 and corroding the hull 10 structure. It also prevents rainwater from the top of the hull 10 from entering the hull 10 through the gaps in the hatch 11 and damaging the internal components of the hull 10. The rain channel is connected to the corrugated board structure 12 by welding or bolting.

[0058] like Figure 5 As shown, the second aspect of the embodiment of the present application provides an energy storage system 100, which includes two energy storage cabins symmetrically arranged about the symmetry axis Y, and the two energy storage cabins are arranged side by side and symmetrical about the symmetry axis Y. The energy storage cabin is the energy storage cabin as described in the first aspect of the embodiment of the present application. In the energy storage system 100, the wiring harness and fire protection pipeline in the energy storage cabin are all arranged on the side close to the cabin door 11, and the cabin door 11 is all arranged on the side away from the symmetry axis Y. This can reduce the gap between the two energy storage cabins as much as possible, minimize the occupied space, increase the floor space density, and thus increase the energy density of the energy storage system 100, while also facilitating maintenance.

[0059] like Figure 6 As shown, a third aspect of the present application provides another energy storage system 200, which includes two energy storage compartments symmetrically arranged about a symmetry center O. The energy storage compartments are the energy storage compartments described in the first aspect of the present application. Because the two energy storage compartments are symmetrically arranged about the symmetry center O, the same type of energy storage compartments can be used, which reduces the design work of the layout within the storage compartments.

[0060] It should be noted that the terms "first," "second," etc., in this application are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first," "second," etc. may explicitly or implicitly include at least one of such features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0061] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0062] It should be noted that when an element is referred to as being “fixed to,” “disposed on,” “fixed on,” or “mounted on” another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.

[0063] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0064] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] While the present invention has been described with reference to preferred embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, the various technical features described in the various embodiments may be combined in any manner, provided no structural conflicts exist. The present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. An energy storage cabin, characterized in that: The device comprises a cabin, wherein at least two battery clusters and a plurality of high-voltage boxes are arranged in the cabin, wherein at least two battery clusters share one high-voltage box, so that at least two battery clusters charge and discharge the one high-voltage box simultaneously; as well as The hatch is connected to the first side wall of the cabin body and extends along the length direction of the first side wall.

2. The energy storage cabin according to claim 1, characterized in that: Connecting members are provided on the first side wall of the cabin and the second side wall opposite to the first side wall. The connecting members on the first side wall are respectively located near the left edge position of the first side wall and the right edge position of the first side wall; the connecting members on the second side wall are respectively located near the left edge position of the second side wall and the right edge position of the second side wall.

3. The energy storage cabin according to claim 2, characterized in that: The connecting member comprises: at least two hanging shafts arranged side by side, one end of each of the hanging shafts being connected to the first side wall or the second side wall; and The baffles are respectively connected to the other ends of the suspension shafts and extend radially along the suspension shafts.

4. The energy storage cabin according to claim 1, characterized in that: Each battery cluster includes at least two battery packs, and the battery packs are arranged on a support frame or a support tray.

5. The energy storage cabin according to claim 1, characterized in that: The system also includes a primary liquid cooling pipeline, a secondary liquid cooling pipeline, and a tertiary liquid cooling pipeline. The primary liquid cooling pipeline is arranged at the bottom of the cabin, the secondary liquid cooling pipeline is arranged on one side of the cabin near the cabin door, and the tertiary liquid cooling pipeline is located inside the cabin and connected to the battery cluster. The first-stage liquid cooling pipeline, the second-stage liquid cooling pipeline and the third-stage liquid cooling inlet and outlet pipelines are connected to each other through quick-plug interfaces.

6. The energy storage cabin according to claim 1, characterized in that: A dehumidifier is provided on the cabin door for discharging water vapor in the cabin; a drain port is provided at the bottom of the cabin for discharging condensed water in the dehumidifier.

7. The energy storage cabin according to claim 1, characterized in that: A fire sprinkler pipe is provided on the top inner side of the cabin, and a gap is provided between the fire sprinkler pipe and the battery cluster.

8. The energy storage cabin according to claim 7, characterized in that: A plurality of fire sprinkler nozzles are arranged on the fire sprinkler pipe, and the plurality of fire sprinkler nozzles are all circular tubular water mist nozzles.

9. The energy storage cabin according to claim 1, characterized in that: The top of the cabin body is provided with a corrugated plate structure and a water guide groove connected to the corrugated plate structure, and the water guide groove is located at the edge of the top of the cabin body.

10. The energy storage cabin according to claim 1, characterized in that: It also includes a fire control cabinet located outside the cabin, which includes a fire control host, and the fire control host is used to control the fire sprinkler pipe to spray the battery cluster; the fire control cabinet is provided with a fire emergency start-stop device and a manual alarm device, and the fire emergency start-stop device and the manual alarm device are both connected to the fire control host.

11. An energy storage system, characterized in that: The invention comprises at least two energy storage compartments according to any one of claims 1 to 10, wherein the at least two energy storage compartments are symmetrically arranged about an axis of symmetry or symmetrically arranged about a center of symmetry.

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