Energy storage cabinet and energy storage equipment

Abstract

The utility model discloses an energy storage cabinet and energy storage equipment, and relates to the technical field of safety of energy storage equipment. The energy storage cabinet comprises a cabinet body and a water sensor, the cabinet body comprises a bottom plate assembly, the bottom plate assembly comprises a bottom plate, a first edge beam and a second edge beam, the first edge beam and the second edge beam are arranged around the bottom plate and fixedly connected with the bottom plate, the bottom plate is arranged in an inclined mode, and the water sensor is arranged on the bottom plate. The bottom plate, the first edge beam and the second edge beam define a containing groove; the water immersion sensor is arranged in the containing groove so as to detect the liquid level in the containing groove.

Description

Technical Field

[0001] This application relates to the field of safety technology for energy storage devices, and in particular to an energy storage cabinet and an energy storage device. Background Technology

[0002] Currently, battery modules are generally placed in energy storage cabinets, which are integrated devices for storing electrical energy. They have a complete safety protection mechanism and are protected by a battery management system (BMS), a heat dissipation and temperature control system, and cabinet protection devices, which can effectively reduce safety risks and ensure the safety and reliability of the energy storage process.

[0003] However, when the liquid cooling structure of the battery module in the energy storage cabinet is damaged, leakage will occur. Leakage will not only reduce the heat dissipation effect of the battery module, but also increase the risk of thermal runaway. Summary of the Invention

[0004] The embodiments of this application provide an energy storage cabinet and an energy storage device that can detect leakage problems in battery modules in a timely manner, ensure the heat dissipation effect of battery modules, and reduce the risk of thermal runaway.

[0005] The energy storage cabinet of this application includes a cabinet body and a water immersion sensor. The cabinet body includes a base plate assembly, which includes a base plate, a first side beam, and a second side beam. The first side beam and the second side beam are arranged around the base plate and fixedly connected to the base plate. The base plate is inclined, and the base plate, the first side beam, and the second side beam form a receiving groove. The water immersion sensor is arranged in the receiving groove to detect the liquid level in the receiving groove.

[0006] In some embodiments, the first side beam includes two parts, and the base plate includes a first part and a second part. The first part and the second part are both inclined, and one end of the first part and the second part are connected to each other, while the other end is connected to the two first side beams respectively.

[0007] In some embodiments, the water immersion sensor is disposed at the lowest point of the receiving tank.

[0008] In some embodiments, the water immersion sensor is positioned at a location where the height difference between it and the lowest point in the receiving tank is equal to a preset height difference, which is determined based on the height difference between the highest and lowest points of the receiving tank.

[0009] In some embodiments, the cabinet includes a plurality of sub-cabinets, which are arranged sequentially along the extension direction of the first side beam. A second side beam is provided between adjacent sub-cabinets, and each sub-cabinet is provided with the receiving slot.

[0010] In some embodiments, the receiving slots of the multiple sub-cabinets are connected and the lowest point is at the same height; or, the receiving slots of the multiple sub-cabinets are connected and the lowest point is at different heights.

[0011] In some embodiments, the water immersion sensor is disposed in the receiving slots of the plurality of sub-cabinets, with the receiving slot having the lowest point having the smallest height.

[0012] In some embodiments, the cabinet further includes a bridging member that passes through the second side beam between two adjacent sub-cabinets to connect the receiving slots of the two adjacent sub-cabinets.

[0013] In some embodiments, the bridging member has a channel, the lowest point of which is flush with the lowest point of the receiving slot.

[0014] In some embodiments, a drain outlet is provided in the first side beam and / or the second side beam at a position flush with the lowest point of the receiving tank.

[0015] In some embodiments, the cabinet further includes a support beam, a top plate, and a cabinet door. The support beam is disposed on the bottom plate assembly, the top plate is disposed on the support beam and opposite to the bottom plate, the cabinet door is disposed between the top plate and the first side beam, and the lowest position of the receiving slot is located near the cabinet door.

[0016] The energy storage device according to the embodiments of this application includes a battery module and an energy storage cabinet according to any of the above embodiments. The battery module is disposed inside the energy storage cabinet.

[0017] In the battery module and energy storage device of this application, by tilting the base plate, the base plate, the first side beam and the second side beam form a receiving tank for containing leakage. Then, a water immersion sensor is placed in the receiving tank, and the water immersion sensor detects the liquid level in the receiving tank to realize the leakage detection of the battery module.

[0018] In the event of leakage from the battery module inside the cabinet, the leaked liquid will be collected in the containment tank. The bottom plate is tilted so that even a small amount of leakage will cause the liquid level in the containment tank to rise significantly. This allows the water immersion sensor to detect the leakage problem in a timely manner, facilitating prompt handling of the leakage issue, ensuring the heat dissipation performance of the battery module, and reducing the risk of thermal runaway.

[0019] Additional aspects and advantages of embodiments of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of this application. Attached Figure Description

[0020] The above and / or additional aspects and advantages of the embodiments of this application will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0021] Figure 1 This is a perspective view of an energy storage cabinet according to certain embodiments of this application.

[0022] Figure 2 It is along Figure 1 A schematic diagram of the cross-section of line II-II in the diagram.

[0023] Figure 3 This application Figure 2 An enlarged schematic diagram of region a in the diagram.

[0024] Figure 4 It is along the parallel Figure 1 A plan view of the energy storage cabinet from the negative x-axis direction.

[0025] Figure 5 This application Figure 4 An enlarged schematic diagram of region b in the diagram.

[0026] Figure 6 This application Figure 4 An enlarged schematic diagram of region c in the diagram.

[0027] Figure 7 It is along the parallel Figure 1 A plan view of the energy storage cabinet from the negative z-axis direction.

[0028] Figure 8 This is a perspective view of an energy storage device according to certain embodiments of this application. Detailed Implementation

[0029] The embodiments of this application will be further described below with reference to the accompanying drawings. The same or similar reference numerals in the drawings denote the same or similar elements or elements having the same or similar functions throughout.

[0030] Furthermore, the embodiments of this application described below in conjunction with the accompanying drawings are exemplary and are only used to explain the embodiments of this application, and should not be construed as limiting this application.

[0031] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] Please see Figures 1 to 3 The energy storage device 100 includes a cabinet 10 and a water immersion sensor 20. The cabinet 10 includes a base plate assembly 11, which includes a base plate 111, a first side beam 112, and a second side beam 113. The first side beam 112 and the second side beam 113 are arranged around the base plate 111 and fixedly connected to the base plate 111. The base plate 111 is inclined. The base plate 111, the first side beam 112, and the second side beam 113 form a receiving tank 114. The water immersion sensor 20 is arranged in the receiving tank 114 to detect the liquid level in the receiving tank 114.

[0033] In the energy storage device 100 of this application embodiment, by tilting the base plate 111, the base plate 111, the first side beam 112 and the second side beam 113 form a receiving tank 114 for receiving leakage. Then, a water immersion sensor 20 is installed in the receiving tank 114, and the water immersion sensor 20 detects the liquid level in the receiving tank 114 to realize leakage detection.

[0034] In the event of leakage from the battery module inside the cabinet 10, the leakage will be collected in the receiving tank 114. The bottom plate 111 is tilted, and even a small amount of leakage will cause the liquid level in the receiving tank 114 to rise significantly. This allows the water immersion sensor 20 to detect the leakage problem in a timely manner, thus facilitating timely handling of the leakage problem, ensuring the heat dissipation performance of the energy storage cabinet, and reducing the risk of thermal runaway.

[0035] Please see Figure 8 This application provides an energy storage device 1000, which includes an energy storage cabinet 100 and a battery module 200.

[0036] The energy storage cabinet 100 includes a cabinet body 10 and a water immersion sensor 20.

[0037] Please see Figures 1 to 7 In some embodiments, the cabinet 10 includes a base plate assembly 11, a support beam 12, a top plate 13, and a cabinet door 14.

[0038] The support beam 12 is mounted on the base plate assembly 11, and the top plate 13 is mounted on the support beam 12 and opposite to the base plate 111. The base plate assembly 11, the support beam 12, and the top plate 13 enclose an accommodating space, which contains multiple battery compartments. The battery compartments are used to house battery modules 200, and the battery compartments and battery modules 200 are arranged in a one-to-one correspondence. For example, the support beams 12 are staggered to form multiple battery compartments.

[0039] The cabinet door 14 is located between the bottom plate assembly 11 and the top plate 13. The cabinet door 14 is used to close the battery compartment. After the cabinet door 14 is opened, the battery module 200 can be placed into the battery compartment. Then, the cabinet door 14 is closed to close the battery compartment.

[0040] Thus, by setting the cabinet door 14, it is convenient to put the battery module 200 in and out, while also achieving the sealing of the battery compartment to prevent the battery module 200 from being affected by the outside world, such as dust and water.

[0041] In some embodiments, the base plate assembly 11 includes a base plate 111, a first side beam 112, and a second side beam 113. The base plate assembly 11 serves as the bottommost support component of the energy storage device 100, supporting the various components of the energy storage device 100.

[0042] The first side beam 112 and the second side beam 113 are connected in sequence to form the frame of the base plate 111. That is to say, the first side beam 112 and the second side beam 113 are arranged around the base plate 111 and are fixedly connected to the base plate 111.

[0043] For example, there are two of each of the first side beam 112 and the second side beam 113. For instance, the two first side beams 112 are arranged along the length direction of the cabinet 10 of the energy storage device 100, and the two second side beams 113 are arranged along the width direction of the cabinet 10 of the energy storage device 100, with the length direction and the width direction being perpendicular.

[0044] Optionally, the base plate 111 is inclined. It can be understood that the inclined base plate 111 means that the base plate 111 is inclined relative to the ground. For example, the angle between the base plate 111 and the ground is an acute angle.

[0045] Optionally, the base plate 111 is inclined along the extension direction (i.e. the width direction) of the second side beam 113, and the base plate 111, the first side beam 112 and the second side beam 113 form a receiving groove 114.

[0046] For example, the height of the base plate 111 gradually decreases along its width. The closer to the cabinet door 14, the lower the height of the base plate 111. This ensures that when the receiving tank 114 collects leaked liquid, the leaked liquid will be concentrated near the cabinet door 14, making it convenient for maintenance personnel to open the cabinet door 14 to clean up the leaked liquid.

[0047] Optionally, the base plate 111 includes a first part 1111 and a second part 1112. Both the first part 1111 and the second part 1112 are inclined, and one end of the first part 1111 and the second part 1112 are connected to each other, while the other end is connected to the first side beam 112.

[0048] When one end of the first part 1111 and the second part 1112 is higher than the other end, the shape formed by the first part 1111 and the second part 1112 being cut by a plane perpendicular to the ground and parallel to the width direction is a "V" shape. When one end of the first part 1111 and the second part 1112 is lower than the other end, the shape formed by the first part 1111 and the second part 1112 being cut by a plane perpendicular to the ground and parallel to the width direction is an inverted "V" shape.

[0049] Thus, the base plate 111 is divided into a first part 1111 and a second part 1112, both of which are inclined to form a receiving groove 114 for absorbing leakage. When the first part 1111 and the second part 1112 are in a "V" shape, there is one receiving groove 114; when the first part 1111 and the second part 1112 are in an inverted "V" shape, there are two receiving grooves 114, namely the receiving groove 114 between the first part 1111 and a first side beam 112, and the receiving groove 114 between the second part 1112 and another first side beam 112.

[0050] Optionally, an angle is formed between the first part 1111 and the second part 1112 (e.g., Figure 2 Angle β (as shown).

[0051] Optionally, when the first part 1111 and the second part 1112 are inverted "V" shape, there are two receiving tanks 114. The two receiving tanks 114 collect leakage liquid from different areas of the energy storage device 100 respectively. Therefore, a water immersion sensor 20 can be set in each of the two receiving tanks 114 to ensure that leakage liquid from different areas is detected.

[0052] Optionally, the cabinet door 14 is provided along the length direction, and the cabinet door 14 includes a first cabinet door and a second cabinet door opposite each other, which are respectively located between the top plate 13 and the two first side beams 112.

[0053] Thus, by setting up a first cabinet door and a second cabinet door, the energy storage cabinet can be opened from multiple directions, improving the flexibility of placing and removing the battery module 200. Furthermore, with the first part 1111 and the second part 1112 forming an inverted "V" shape, the two receiving slots 114 are located close to the first cabinet door and the second cabinet door respectively, facilitating the cleaning of leaks.

[0054] In some embodiments, the cabinet 10 includes a plurality of sub-cabinets 101, which are arranged sequentially along the extension direction of the first side beam 112. A second side beam 113 is provided between adjacent sub-cabinets 101, and each sub-cabinet 101 is provided with a receiving slot 114.

[0055] It is understandable that energy storage devices 100 are generally managed in clusters, that is, divided into multiple battery clusters, with each battery cluster stored separately. Therefore, cabinet 10 is divided into multiple sub-cabinets 101, each sub-cabinet 101 corresponding to one battery cluster, to accommodate all battery modules 200 of one battery cluster.

[0056] Along the length of the energy storage device 100, multiple sub-cabinets 101 are arranged sequentially. Any two adjacent sub-cabinets 101 are separated by a second side beam 113 in the width direction, thereby dividing the accommodating space between the top plate 13 and the bottom plate assembly 11 into multiple sub-accommodating spaces. Each sub-accommodating space can be used to store a battery cluster, thereby facilitating the clustered storage and management of battery clusters.

[0057] Each sub-cabinet 101 is provided with a corresponding base plate 111, and the base plate 111, the first side beam 112 and the second side beam 113 form a receiving groove 114, so that each sub-cabinet 101 is provided with a corresponding receiving groove 114 to collect the leakage of the battery cluster in the corresponding sub-cabinet 101.

[0058] Please see Figure 3 and Figure 4 In some embodiments, the cabinet 10 further includes a bridging member 15, which passes through a second side beam 113 between two adjacent sub-cabinets 101 to connect the receiving slots 114 of the two adjacent sub-cabinets 101.

[0059] Since each sub-cabinet 101 is equipped with a receiving slot 114, in order to realize the leakage detection of the battery cluster in each sub-cabinet 101, a water immersion sensor 20 needs to be installed in the receiving slot 114 of each sub-cabinet 101.

[0060] Therefore, by installing a bridging member 15 on the second side beam 113 between two adjacent sub-cabinets 101, and passing the bridging member 15 through the second side beam 113, the receiving slots 114 of the two adjacent sub-cabinets 101 are connected together. In this way, after leakage is collected in any receiving slot 114, it can flow into other receiving slots 114. At this time, only a water immersion sensor 20 needs to be installed in any receiving slot 114 to realize leakage detection of each sub-cabinet 101, thereby saving leakage detection costs.

[0061] Optionally, the lowest point of the pipe of the bridging member 15 is flush with the lowest point of the receiving tank 114.

[0062] It is understandable that, in order to ensure smooth flow of liquid in the receiving tanks 114 between different sub-cabinets 101, the lowest point of the bridging member 15 can be aligned with the lowest point of the receiving tank 114. This way, as long as there is liquid in the receiving tank 114, it can flow through the bridging member 15 to the adjacent receiving tank 114, thereby fully utilizing the capacity of each receiving tank 114 and achieving leakage collection from each sub-cabinet 101.

[0063] Optionally, the bridging element 15 is a hollow tube. In this way, communication between two adjacent receiving slots 114 can be achieved through the hollow tube.

[0064] Optionally, the lowest points of the receiving slots 114 of the multiple sub-cabinets 101 are at the same height; or, the lowest points of the receiving slots 114 of the multiple sub-cabinets 101 are at different heights.

[0065] Please see Figure 6 The height of the lowest point of the receiving slot 114 of multiple sub-cabinets 101 can be set to be the same or different. When the lowest point of the receiving slot 114 of multiple sub-cabinets 101 is the same, the water immersion sensor 20 can be set in the receiving slot 114 of any sub-cabinet 101, and the installation position of each base plate 111 is basically the same, which facilitates the manufacturing of the energy storage device 100.

[0066] When the lowest points of the receiving slots 114 in multiple sub-cabinets 101 are at different heights, the water immersion sensor 20 is installed in the receiving slot 114 with the lowest point. Thus, if any sub-cabinet 101 experiences a leakage problem, the leaked liquid will flow into the receiving slot 114 with the lowest point. At this point, only one water immersion sensor 20 needs to be installed in that receiving slot 114 to detect leakage in all sub-cabinets 101, thereby saving leakage detection costs.

[0067] For example, there are four sub-cabinets 101, and the heights of the lowest points of the four sub-cabinets 101 (i.e., the heights of the lowest points from the ground) are D1 to D4, with D1 being the smallest. Therefore, a water immersion sensor 20 can be installed in the receiving groove 114 of the sub-cabinet 101 corresponding to D1 to realize the leakage detection of the four sub-cabinets 101.

[0068] Optionally, the water immersion sensor 20 is positioned at the lowest point of the receiving tank 114.

[0069] Thus, by placing the water immersion sensor 20 at the lowest point (the lowest position) of the receiving tank 114, the leakage problem can be detected in a timely manner after the receiving tank 114 collects the leakage.

[0070] Optionally, the water immersion sensor 20 is positioned at a height difference from the lowest point in the receiving tank 114 equal to a preset height difference, where the preset height difference is based on the highest point of the receiving tank 114 (e.g., the lowest point in the receiving tank 114). Figure 2 H1 in the middle) and the lowest point (e.g. Figure 2 The height difference of H2 in the middle is determined.

[0071] It is understandable that the energy storage device 100 may experience very minor leaks. In order to avoid the liquid level in the containment tank 114 being too low and thus detected as a leak, resulting in frequent false leak reports.

[0072] If there is no leakage or only a small amount of leakage that does not affect the safety of the energy storage device 100, any leakage reported by the water immersion sensor 20 can be considered a false alarm. In this case, the water immersion sensor 20 can be set at a position where the height difference between it and the lowest point of the receiving tank 114 is equal to a preset height difference. This way, a leakage problem will only be detected when the height difference between the liquid level and the lowest point of the receiving tank 114 reaches the preset height difference (at which point there will be a large amount of leakage, which may affect the safety of the energy storage device 100).

[0073] The preset height difference can be equal to the height difference between the highest and lowest points of the receiving tank 114. The leakage problem is only detected when the liquid level in the receiving tank 114 reaches the highest level. This reduces the number of leakage reports and avoids frequent false alarms by making full use of the capacity of the receiving tank 114.

[0074] In some embodiments, the water immersion sensor 20 is a smart device for detecting liquid leaks.

[0075] For example, the water immersion sensor 20 can be an electrode-type water immersion sensor 20, which can detect water based on the principle of liquid conductivity. It is generally a main unit electrode-separated design and needs to be used with a water leakage controller. Under normal conditions, the two probes are insulated by air. When immersed in water, the probes conduct, and the sensor outputs a dry contact signal. When the probe is immersed in water to a depth of about 1 mm, an alarm signal is generated.

[0076] For example, the water immersion sensor 20 can also be a photoelectric water immersion sensor 20: it uses the principle of refraction and reflection of light at different media cross sections for detection. When liquid comes into contact with the probe, the refractive index of the probe's contact surface with air changes. The change in light inside the probe is used to determine the water leakage situation and issue a water leakage alarm signal. Its probe and control terminal are integrated, eliminating the need for a separate controller.

[0077] In some embodiments, a drain outlet is provided in the first side beam 112 and / or the second side beam 113 at a position flush with the lowest point of the height of the receiving tank 114.

[0078] Thus, by providing a drain port in the first side beam 112 and / or the second side beam 113 at a position flush with the lowest point of the receiving tank 114, the leak can be discharged by opening the drain port when it is necessary to remove the leak.

[0079] Optionally, the energy storage device 100 also includes a battery management system and a draining device. The draining device includes a water pump and a suction pipe. The suction pipe extends to the bottom of the receiving tank 114. If the water immersion sensor 20 detects leakage, it reports a leakage signal to the battery management system. The battery management signal can control the water pump of the draining device to work. The water pump draws liquid through the suction pipe, thereby realizing the discharge of liquid from the receiving tank 114.

[0080] In some embodiments, the battery module 200 includes a plurality of battery cells. The plurality of battery cells are disposed within a housing, and the plurality of battery cells are combined with the housing to form the battery module 200.

[0081] Optionally, a battery module is composed of multiple battery cells combined in series, parallel, or a combination of series and parallel connections. Battery module 200 is a product that is further packaged and integrated based on the battery module.

[0082] The battery module comprises multiple battery cells. These cells can be connected in series and / or parallel via electrical connectors to form the overall battery module. The modular design of the battery cells facilitates replacement or maintenance in case of failure of any single cell (such as hardware failure, thermal runaway, etc.). The battery module forms a power supply circuit with an external load through a total positive and total negative connection, thereby providing power. The battery module is the core component of the energy storage device 100, used for energy storage and power supply.

[0083] Optionally, the individual battery cells are rectangular, and multiple battery cells are arranged in a rectangular array. In this way, the multiple battery cells are arranged more compactly, which is beneficial for the miniaturization of the energy storage device 100.

[0084] Optionally, there may be one or more battery modules 200, and one or more battery modules 200 may form a battery cluster (such as the individual battery modules 200 of the cabinet 10 of the energy storage device 100 forming a battery cluster). The energy storage device 100 may include one or more battery clusters.

[0085] In the description of this specification, the references to "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0086] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one feature. In the description of this application, "multiple" means at least two, such as two or three, unless otherwise explicitly specified.

[0087] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An energy storage cabinet, characterized in that, include: The cabinet includes a base plate assembly, which includes a base plate, a first side beam, and a second side beam. The first side beam and the second side beam are arranged around the base plate and fixedly connected to the base plate. The base plate is inclined, and the base plate, the first side beam, and the second side beam form a receiving groove. A water immersion sensor is disposed in the receiving tank to detect the liquid level in the receiving tank.

2. The energy storage cabinet according to claim 1, characterized in that, The first side beam includes two parts, and the base plate includes a first part and a second part. Both the first part and the second part are inclined, and one end of the first part and the second part are connected to each other, while the other end is connected to the two first side beams respectively.

3. The energy storage cabinet according to claim 1, characterized in that, The water immersion sensor is located at the lowest point of the receiving tank.

4. The energy storage cabinet according to claim 1, characterized in that, The water immersion sensor is positioned at a height difference from the lowest point in the receiving tank that is equal to a preset height difference, which is determined based on the height difference between the highest and lowest points of the receiving tank.

5. The energy storage cabinet according to claim 1, characterized in that, The cabinet includes multiple sub-cabinets, which are arranged sequentially along the extension direction of the first side beam. A second side beam is provided between adjacent sub-cabinets, and each sub-cabinet is provided with the receiving slot.

6. The energy storage cabinet according to claim 5, characterized in that, The receiving slots of the multiple sub-cabinets are connected and the lowest point is at the same height; or, the receiving slots of the multiple sub-cabinets are connected and the lowest point is at different heights.

7. The energy storage cabinet according to claim 5 or 6, characterized in that, The water immersion sensor is installed in the receiving slots of the multiple sub-cabinets, with the lowest point being the receiving slot with the smallest height.

8. The energy storage cabinet according to claim 5, characterized in that, The cabinet also includes a bridging component, which passes through the second side beam between two adjacent sub-cabinets to connect the receiving slots of the two adjacent sub-cabinets.

9. The energy storage cabinet according to claim 8, characterized in that, The bridging component has a channel, the lowest point of which is flush with the lowest point of the receiving slot.

10. The energy storage cabinet according to claim 1, characterized in that, In the first side beam and / or the second side beam, a drain outlet is provided at a position flush with the lowest point of the receiving tank.

11. The energy storage cabinet according to claim 1, characterized in that, The cabinet also includes a support beam, a top plate, and a cabinet door. The support beam is disposed on the bottom plate assembly, the top plate is disposed on the support beam and opposite to the bottom plate, the cabinet door is disposed between the top plate and the first side beam, and the lowest position of the receiving slot is located close to the cabinet door.

12. An energy storage device, characterized in that, include: The energy storage cabinet according to any one of claims 1-11; and A battery module, which is installed inside the energy storage cabinet.

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