Drainage sealing device and energy storage cabinet

Abstract

The invention discloses a drainage sealing device and an energy storage cabinet, and the device comprises a housing part, an electric drainage module and a hydraulic drainage module, when the drainage sealing device is in a power supply mode, the electric drainage module discharges liquid entering the housing part through a drainage port, and when the drainage sealing device is in a power-off mode, the hydraulic drainage module discharges the liquid entering the housing part through a hydraulic drainage port. And the hydraulic drainage module discharges the liquid through the drainage port. According to the technical scheme, the electric drainage module and the hydraulic drainage module are integrated, rapid and efficient drainage is achieved through the electric drainage module in the power supply state, drainage is automatically triggered by the hydraulic drainage module in the power-off state, the dual-mode drainage design is formed, and the system reliability is remarkably improved; different drainage ports are adopted for drainage in different drainage modes, so that structural interference and backflow pollution are effectively avoided; the device is further fixedly installed at the bottom of the energy storage cabinet through the shell component, the IP67 grade sealing requirement can be met, and the device is suitable for the liquid discharging requirement under various energy storage scenes.

Description

Technical Field

[0001] This invention relates to the field of drainage technology, and in particular to a drainage sealing device and an energy storage cabinet. Background Technology

[0002] As an important component of the new energy field, energy storage systems often experience condensation buildup at the bottom of their cabinets due to changes in ambient humidity or equipment condensation during operation. To prevent this buildup from affecting the electrical safety and operational reliability of the energy storage equipment, a drainage structure is typically installed at the bottom of the energy storage cabinet.

[0003] However, most drainage sealing devices in related technologies generally suffer from the following problems: First, most drainage structures are single-type designs, lacking versatility and unable to adapt to various types of energy storage cabinets or application needs in multiple scenarios; second, conventional drainage devices are prone to backflow of water when external sewage flows back or environmental water accumulates and back pressure occurs, posing a risk of water entering the cabinet and resulting in insufficient sealing and protection performance; third, most drainage systems only use single-path hydraulic or electric structures, resulting in poor reliability and stability; in addition, the drainage channel opening mechanism has a slow response and limited drainage capacity, leading to low drainage efficiency; finally, existing drainage structures generally cannot be linked with the energy management system of the energy storage system, lacking intelligent identification and fine control functions. Summary of the Invention

[0004] The main objective of this invention is to provide a drainage sealing device and an energy storage cabinet to at least solve the technical problems mentioned in the related art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A first aspect of the present invention provides a drainage sealing device, the drainage sealing device comprising:

[0007] The outer casing is used for secure installation at the bottom of the energy storage cabinet;

[0008] An electric drainage module is disposed inside the outer casing component;

[0009] A hydraulic drainage module is disposed inside the outer casing component;

[0010] When the drainage sealing device is in power supply mode, the electric drainage module is used to discharge the liquid that has entered the interior of the housing component through the drain port;

[0011] When the drainage sealing device is in power-off mode or power-on mode, the hydraulic drainage module is used to discharge the liquid that has entered the interior of the housing component through the drain port.

[0012] Based on the first aspect, the electric drainage module includes a first sealing component and an electric drive mechanism, and the drainage outlet includes a first drainage outlet and a second drainage outlet;

[0013] When the drainage sealing device is in power supply mode, the electric drive mechanism is used to drive the first sealing component to operate when a drainage command is received, so as to open the first drain port and allow the liquid that has entered the inside of the housing component to be discharged through the first drain port.

[0014] When the drainage sealing device is in power-off mode or power-on mode, the hydraulic drainage module is used to discharge the liquid that has entered the interior of the housing component through the second drain port.

[0015] Based on the first aspect, the electric drive mechanism includes a motor, a lead screw, a first float, and a pull rod mechanism;

[0016] The motor is connected to the lead screw, which is disposed inside the housing component and extends vertically. The first float is threaded onto the lead screw and can move vertically as the lead screw rotates. The first float is connected to a pull rod mechanism, and the other end of the pull rod mechanism is connected to the first sealing component.

[0017] When the drainage sealing device is in power supply mode, the motor drives the lead screw to rotate, thereby moving the float in the vertical direction. The pull rod mechanism is driven by the first float and is used to pull the first sealing assembly open to open the first drain port, so that the liquid that has entered the interior of the outer casing component can be discharged through the first drain port.

[0018] Based on the first aspect, the first sealing assembly includes a plurality of cover plates;

[0019] The cover plate is disposed on the outside of the outer casing component and is used to block the first drain outlet;

[0020] When the drainage sealing device is in power supply mode, the cover plate opens under the pulling force of the pull rod mechanism to open the first drain port, so that the liquid that has entered the interior of the outer casing component can be discharged through the first drain port.

[0021] Based on the first aspect, the hydraulic drainage module includes a hydraulic cavity, a floating component, a transmission component, and a second sealing component;

[0022] The hydraulic chamber is located inside the outer casing and has an inlet and an internal space for containing the liquid.

[0023] The floating component is disposed within the hydraulic cavity and connected to the transmission component;

[0024] The second sealing assembly is used to seal the second drain outlet;

[0025] When the drainage sealing device is in power-off mode or power-on mode, the floating component is used to float under the action of buoyancy. The transmission component responds to the displacement of the floating component to generate hydraulic pressure and transmits it to the second sealing component, and drives the second sealing component to open to open the second drain port so that the liquid can be discharged through the second drain port.

[0026] Based on the first aspect, the floating component includes a second float and a float guiding structure;

[0027] The second float can move vertically within the hydraulic cavity and floats upward under the action of buoyancy when the liquid level rises;

[0028] The float guide structure is used to guide the second float to move within the hydraulic cavity.

[0029] Based on the first aspect, the transmission assembly includes an upper push rod, a hydraulic channel, and a lower push rod;

[0030] The upper push rod is connected to the float and is used to receive the displacement pressure when the float rises.

[0031] The hydraulic channel is used to conduct hydraulic medium between the upper push rod and the lower push rod and form a hydraulic closed loop;

[0032] The push rod is positioned above the second drain outlet and moves downwards after receiving pressure from the hydraulic medium, driving the second sealing assembly to open the second drain outlet.

[0033] Based on the first aspect, the second sealing assembly includes a movable sealing body and a resilient reset member;

[0034] The sealing body is used to block the second drain outlet under normal conditions;

[0035] When the lower push rod is pushed by hydraulic pressure, the sealing body is driven to open to open the second drain port;

[0036] The sealing body is also used to open under the push of the lower push rod to open the second drain port and discharge liquid through the second drain port;

[0037] When the hydraulic pressure is released, the elastic reset member is used to reset the sealing body to block the second drain outlet.

[0038] Based on the first aspect, the drainage sealing device also includes a controller and a water depth sensor;

[0039] The water depth sensor is installed inside the housing component and is used to detect the liquid level information inside the drainage sealing device in real time;

[0040] The controller is electrically connected to both the water depth sensor and the electric drainage module.

[0041] The controller is used to control the drive mechanism in the electric drainage module to perform actions based on the liquid level information collected by the water depth sensor.

[0042] The controller is also configured to transmit the liquid level information of the water depth sensor to the energy management system of the energy storage system to indicate whether the energy storage cabinet is flooded, and to issue a prompt message when preset conditions are met.

[0043] A second aspect of the present invention also provides an energy storage cabinet, including a cabinet body and a drainage sealing device as described in the first aspect.

[0044] The drainage sealing device and energy storage cabinet of this invention integrate an electric drainage module and a hydraulic drainage module. In the power-on state, the electric drainage module enables rapid and efficient liquid drainage, while in the power-off state, the hydraulic drainage module automatically triggers drainage, forming a dual-mode drainage design that significantly improves system reliability. Furthermore, different drainage modes can utilize different drainage outlets, effectively avoiding structural interference and backflow contamination, further enhancing drainage efficiency and system safety. The device is fixedly installed at the bottom of the energy storage cabinet via its outer casing, serving both sealing and drainage functions, effectively preventing backflow of external sewage and meeting IP67 sealing requirements. The overall structure is highly adaptable, the drainage channel is responsive, and it possesses good scalability and versatility, suitable for liquid discharge needs in various energy storage scenarios. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 A three-dimensional schematic diagram of the drainage sealing device provided in the embodiments of this application;

[0047] Figure 2 This is a structurally disassembled schematic diagram of the outer casing component in an embodiment of this application;

[0048] Figure 3 This is a structurally disassembled schematic diagram of the hydraulic drainage module in an embodiment of this application;

[0049] Figure 4This is a structural breakdown diagram of the electric drainage module in an embodiment of this application;

[0050] Figure 5 This is a schematic diagram of the internal structure of the drainage sealing device provided in the embodiments of this application;

[0051] Figure 6 This is a three-dimensional schematic diagram of a drainage sealing device provided in an embodiment of this application.

[0052] Reference numerals: 1. Drainage sealing device; 10. Housing component; 11. Top cover; 12. Sealing ring; 13. Fastening nut; 20. Hydraulic drainage module; 201. Upper hydraulic cylinder cover; 202. Upper push rod; 203. Upper hydraulic cylinder; 204. Hydraulic cavity; 205. Float guide structure; 206. Second float; 207. Lower hydraulic cylinder cover; 208. Lower push rod; 209. Lower hydraulic cylinder; 30. Electric drainage module; 301. Sealing body; 302. Elastic reset component; 303. First float; 304. Pull rod mechanism; 305. Lead screw; 306. Motor; 307. Lower cover; 309. Cover plate; 40. Water depth sensor; 120. First drain outlet; 130. Second drain outlet. Detailed Implementation

[0053] To make the inventive objectives, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0054] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0055] In the description of the embodiments of this application, 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 one or more of that feature. The term "multiple" means two or more, unless otherwise explicitly specified. The term "comprising" indicates the presence of the described feature, whole, step, operation, element, and / or component, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or sets thereof. The term "and / or" describes the relationship between related objects, indicating that three relationships may exist. For example, A and / or B may include three cases: A existing alone, A and B existing simultaneously, and B existing alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship.

[0056] Unless otherwise defined, all technical terms used in the embodiments of this application have the same meaning as commonly understood by one of ordinary skill in the art; the terms used in the embodiments of this application are for the purpose of describing specific embodiments only and are not intended to limit this application; the terms "comprising" and "having" and any variations thereof in the specification, claims and foregoing description of the drawings of this application are intended to cover non-exclusive inclusion.

[0057] Furthermore, terms such as "exemplary," "for example," and "optional" are used to indicate illustrative purposes. Any technical solution described by the above terms in the embodiments of this application should not be construed as being more preferred or advantageous than other technical solutions. Specifically, these terms are intended to present the relevant technical concepts in terms of specific implementation methods.

[0058] Please refer to the following in order. Figures 1 to 6 This application provides a drainage sealing device 1, which includes at least a housing component 10, a hydraulic drainage module 20, and an electric drainage module 30. The components are described below:

[0059] The outer casing component 10 can be a cylindrical shell structure, which is fixedly installed at the bottom of the energy storage cabinet by fasteners. The outer casing component 10 is provided with a drain port, which can directly correspond to the drainage channels of the electric drainage module 30 and the hydraulic drainage module 20; optionally, the drain port can include a first drain port 120 and a second drain port 130, which correspond to the drainage channels of the electric drainage module 30 and the hydraulic drainage module 20 respectively, that is, different drainage modules drain water through different drain ports.

[0060] The electric drainage module 30 is disposed inside the outer casing 10. It is an electrically driven structure that can receive electrical energy from the energy storage cabinet for operation. Its main function is to drain liquid from the energy storage cabinet. The liquid includes at least one of the following: condensate generated by the liquid cooling module, external backflow water, condensate formed by liquefaction inside the cabinet, or water. For example, when the drainage sealing device is in power supply mode, the electric drainage module 30 is used to drain the liquid that enters the outer casing 10 through the inlet 110 through the first drain outlet 120.

[0061] The hydraulic drainage module 20 is also located inside the housing component 10. It is a non-electrically driven structure, and its main function is also to drain the liquid in the energy storage cabinet. For example, when the drainage sealing device 1 is in the power-off mode, the hydraulic drainage module 20 is used to drain the liquid that has entered the housing component 10 through the second drain port 130.

[0062] In practical applications, when the device is in power-on mode, the electric drainage module 30 operates by default, quickly draining liquid from inside the cabinet via motor-driven active drainage. When the device is in power-off mode, power-on mode, or when the electric drainage module 30 malfunctions, i.e., in any normal mode, the hydraulic drainage module 20 triggers drainage by the natural rise of the liquid level, ensuring redundancy and reliability of the drainage function. The two drainage modes drain through the first drainage port 120 and the second drainage port 130 respectively, without interference, further improving the drainage efficiency and operational safety of the device.

[0063] It should be noted that the first drain outlet 120, the second drain outlet 130, and the inlet 110 are arranged along the height or axial direction of the drainage sealing device. The first drain outlet 120 is located at a lower height (e.g., near the bottom), the inlet 110 is located at a higher height (e.g., near the top), and the second drain outlet 130 is located in the middle. Therefore, the electric drainage module 30 and the hydraulic drainage module 20 of this embodiment also provide simultaneous drainage by both modules (i.e., simultaneous drainage by the first drain outlet and the second drain outlet) when the liquid level is higher than a preset preset position (e.g., the height of the second drain outlet) and the water inlet speed is greater than a preset speed (the drainage speed of the first drain outlet).

[0064] As can be seen, the drainage sealing device of this application integrates an electric drainage module and a hydraulic drainage module. In the power-on state, the electric drainage module achieves rapid and efficient drainage, while in the power-off state, the hydraulic drainage module automatically triggers drainage, forming a dual-mode drainage design that significantly improves system reliability. Furthermore, different drainage modes use different drainage outlets for drainage, effectively avoiding structural interference and backflow contamination. At the same time, it avoids the reliability problems caused by traditional single drainage methods, significantly improving the operational safety and environmental adaptability of the energy storage cabinet under complex working conditions.

[0065] In an optional embodiment of this application, the electric drainage module 30 includes a first sealing component (not shown) and an electric drive mechanism (303, 304, 305, 306);

[0066] Specifically, the electric drive mechanism can be a drive structure with a motor, used to provide driving force and convert rotational motion into linear motion, thereby driving the first sealing assembly to complete the opening and closing action. For example, when the drainage sealing device 1 is in power supply mode, after receiving an active drainage command from the controller, the electric drive mechanism drives and actuates the first sealing assembly, opening the first drain port 120, thereby quickly discharging the liquid that has entered the housing component 10 through the first drain port 120; after drainage is completed, the electric drive mechanism drives the first sealing assembly to reset, so that the first drain port 120 closes again and remains sealed.

[0067] Please see Figure 4 The electric drive mechanism includes a motor 306, a lead screw 305, a first float 303, and a pull rod mechanism 304.

[0068] Specifically, the motor 306 is connected to the lead screw 305, which is vertically disposed inside the housing component 10. The first float 303 is threaded onto the lead screw 305 and can move vertically as the lead screw 305 rotates. A pull rod mechanism 304 is connected to one side of the first float 303, and the other end of the pull rod mechanism 304 is connected to the first sealing component.

[0069] When the drainage sealing device 1 is in power supply mode, the motor 306 fixed on the lower cover 307 drives the lead screw 305 to rotate, thereby causing the first float 303 to move vertically. During this process, the first float 303 transmits its displacement to the first sealing assembly through the pull rod mechanism 304, driving the first sealing assembly from the closed state to the open state (which can be understood as controlling the first sealing assembly to move or rotate, thereby moving away from the blocked first drain outlet 120), so as to open the first drain outlet 120 and allow the liquid that has entered the outer casing 10 to be discharged through the first drain outlet 120. After drainage is completed, the motor 306 drives the lead screw 305 to rotate in the opposite direction, causing the first float 303 to return to its original position, and the first sealing assembly then closes the first drain outlet 120 to restore the sealing state.

[0070] In an optional embodiment of this application, the first sealing assembly includes a plurality of cover plates 308.

[0071] Specifically, the cover plate 308 is hinged to the outside of the housing component 10 and is used to block the first drain outlet 120 under normal conditions to maintain a drainage seal.

[0072] When the drainage sealing device 1 is in power supply mode, the cover plate 308 is opened by the pulling force applied by the pull rod mechanism 304, thereby opening the first drain port 120 and allowing the liquid that has entered the housing component 10 to be discharged through the first drain port 120; after the drainage is completed, the pull rod mechanism 304 drives the cover plate 308 back to its original position to re-seal the first drain port 120, thereby restoring the sealing state.

[0073] It should be noted that the first drain outlet 120 can be an array of through holes arranged circumferentially on the outer casing component 10. Multiple cover plates 308 arranged in a ring on the outer casing component 10 can block the array of through holes at different locations in different areas.

[0074] Please return and continue reading. Figure 3 The hydraulic drainage module 20 includes a hydraulic cavity 204, floating components (206, 205), transmission components (202, 208), and a second sealing component (301, 302).

[0075] Specifically, the hydraulic cavity 204 is defined by the upper hydraulic cylinder cover 201, the upper hydraulic cylinder 203, the lower hydraulic cylinder cover 207, and the lower hydraulic cylinder 209. It is located inside the outer shell component 10 and has an inlet 110 on its side wall that penetrates the outer shell component to accommodate liquid entering through the outer shell component.

[0076] The floating assembly is disposed within the hydraulic cavity 204 and connected to the transmission assembly. The second sealing assembly is used to seal the second drain outlet 130.

[0077] When the drainage sealing device 1 is in power-off mode or power-on mode, the liquid level gradually rises, the floating component floats up under the action of buoyancy, the transmission component responds to the displacement of the floating component to generate hydraulic pressure and transmits it to the second sealing component, driving the sealing ball 301 to overcome the elastic force of the spring 302 and lift up, opening the second drain port 130 to discharge the liquid through the second drain port 130; after the liquid is discharged, the liquid level drops, the hydraulic pressure disappears, the sealing ball 301 returns to its position under the action of the spring 302, and re-seals the second drain port 130, realizing automatic reset sealing.

[0078] In an optional embodiment of this application, the floating component includes a second float 206 and a float guide structure 205.

[0079] Specifically, the second float 206 is disposed inside the hydraulic cavity 204. It can float vertically under the action of buoyancy when the liquid level rises and move downwards when the liquid level falls. The float guide structure 205 can be a hydraulic pipe, which is fixed relative to the hydraulic cavity 204 to constrain and guide the movement of the second float 206, thereby ensuring that the second float 206 maintains stable vertical movement within the hydraulic cavity 204 and avoids deviation or jamming.

[0080] In an optional embodiment of this application, the transmission component includes an upper push rod 202, a hydraulic channel, and a lower push rod 208.

[0081] Specifically, the upper push rod 202 is connected to the second float 206, and is used to receive the displacement of the second float 206 when it floats upward under buoyancy and transmit the displacement to the liquid in the hydraulic cavity 204. The hydraulic channel is formed by the hydraulic pipe 205 and the internal space of the hydraulic cylinder, and is used to conduct hydraulic medium between the upper push rod 202 and the lower push rod 208, thereby forming a hydraulic closed loop and realizing pressure transmission. The lower push rod 208 is located above the second drain port 130. When it receives the pressure transmitted by the hydraulic channel, the lower push rod 208 moves downward under the action of hydraulic pressure to drive the second sealing assembly to overcome the spring preload and open, thereby opening the second drain port 130 and realizing the discharge of liquid.

[0082] In an optional embodiment of this application, the second sealing assembly includes a movable sealing body 301 and an elastic reset member 302, thereby achieving the function of preventing backflow.

[0083] Specifically, the sealing body 301 may be spherical and is disposed at the second drain port 130 to seal the second drain port 130 under normal conditions to ensure the sealing of the device. The cover sealing body 301 is also used to be driven to overcome the elastic force of the elastic reset member 302 (e.g., spring) and open when the lower push rod 208 is pushed by hydraulic pressure, thereby opening the second drain port 130.

[0084] As the liquid level rises and triggers hydraulic transmission, the lower push rod 208 pushes the seal 301 to open, allowing liquid to be discharged through the second drain port 130. When the hydraulic pressure is released and the water level drops, the elastic reset member 302 applies a restoring force to the seal 301, causing it to reset and seal the second drain port 130, thereby restoring the device to its sealed state.

[0085] Please see Figure 5 The drainage sealing device also includes a controller (not shown) and a water depth sensor 40.

[0086] The water depth sensor 40 is located inside the housing component 10 and is used to detect the liquid level information inside the drainage sealing device 1 in real time.

[0087] The controller is electrically connected to the water depth sensor 40 and the electric drainage module 30, and is configured to control the drive mechanism in the electric drainage module 30 to operate based on the liquid level information collected by the water depth sensor 40, thereby realizing the automatic opening and closing of the electric drainage module 30. Furthermore, the controller can intelligently control the number of rotations of the motor based on the water depth data, adjust the opening degree of the cover plate 308, and thus control the drainage speed.

[0088] Furthermore, the controller is also configured to transmit the liquid level information of the water depth sensor 40 to the energy management system of the energy storage system to indicate whether there is water ingress in the energy storage cabinet, and to trigger the energy management system to issue a prompt message when the liquid level information meets the preset conditions, thereby ensuring the safe operation of the energy storage system.

[0089] It should be noted that in the hydraulic drainage module 20, the second float 206 generates buoyancy when the liquid level rises. This buoyancy is transmitted through the upper push rod, hydraulic channel, and lower push rod, and ultimately acts on the sealing body 301. According to Pascal's principle in fluid mechanics, the following relationship can be obtained:

[0090] Hydraulic oil pressure: P 液 =F 浮 / S1=ρgV 浮 / S1;

[0091] The thrust exerted by the lower push rod on the seal: F2 = P 液 S2;

[0092] The condition that must be met for the sealed body (sealing ball) to be pushed open is: F2 = KΔx;

[0093] Therefore, the volume of the second float must satisfy the following:

[0094] Among them, P 液 F is the pressure of the hydraulic oil. 浮 S1 represents the buoyancy of the second float, S2 represents the force-bearing area of ​​the upper push rod, and V represents the force-bearing area of ​​the lower push rod. 浮 Let F2 be the volume of the second float, F2 be the pushing force of the lower push rod on the ball, K be the stiffness of the elastic reset element (spring), and Δx be the compression of the elastic reset element.

[0095] It is evident that, due to the relatively low buoyancy of the second float under normal conditions, it cannot directly match the high-stiffness elastic reset component to provide sufficient sealing force, thus failing to meet the IP67 sealing requirements. This embodiment employs a hydraulic amplification structure (upper push rod, lower push rod, second float, elastic component, etc.) to utilize Pascal's principle to increase the buoyancy of the second float by an order of magnitude, thereby significantly enhancing the driving force on the sealing body and raising the overall sealing rating of the device to IP67. Simultaneously, the use of a high-stiffness spring ensures sealing reliability and prevents accidental drainage due to slight liquid level fluctuations.

[0096] This application also provides an energy storage cabinet, including a cabinet body and a drainage sealing device as described in the above embodiments.

[0097] Specifically, the outer casing 10 of the drainage sealing device is used to accommodate the hydraulic drainage module and the electric drainage module, forming a closed cavity structure; the upper cover 11 is installed on the upper end of the outer casing 10 to close and seal the outer casing; the sealing ring 12 is set at the joint between the outer casing 10 and the upper cover 11 to enhance the sealing effect and prevent liquid leakage; the fastening nut 13 is used to fasten and fix the device to ensure the overall installation reliability and sealing performance.

[0098] Furthermore, the drainage sealing device is installed on the cabinet body as follows: a round hole is opened at a preset position at the bottom of the energy storage cabinet. First, the fastening nut 13 of the drainage sealing device is unscrewed, the device is inserted into the round hole, and then the fastening nut 13 is tightened again to complete the fixation. Then, the power cord and communication line of the device are connected to the cabinet system respectively to complete the installation.

[0099] The drainage sealing device and energy storage cabinet of this application integrate an electric drainage module and a hydraulic drainage module. In the power-on state, the electric drainage module achieves rapid and efficient liquid drainage, while in the power-off state, the hydraulic drainage module automatically triggers drainage, forming a dual-mode drainage design that significantly improves system reliability. Furthermore, different drainage modes use different drainage outlets, effectively avoiding structural interference and backflow contamination, further improving drainage efficiency and system safety. The device is fixedly installed at the bottom of the energy storage cabinet via its outer casing, serving both sealing and drainage functions, effectively preventing backflow of external sewage and meeting IP67 sealing requirements. The overall structure is highly adaptable, the drainage channel is responsive, and it possesses good scalability and versatility, suitable for liquid discharge needs in various energy storage scenarios.

[0100] In addition, the embodiments of this application also have the following beneficial effects: 1) The structural design of the self-closing valve and sealing ring can effectively prevent backflow of water and greatly improve the sealing performance, and the device can achieve an IP67 sealing rating. 2) Hydraulic and electric dual drive, with two independent drive modules and redundant design, improves the reliability of the mechanism and ensures that the device can still operate stably and start drainage in the event of extreme power failure and other situations. 3) The addition of a water depth sensor enables communication with the energy storage EMC and linkage strategy with the cabinet system for precise control; it can intelligently control the number of motor rotations based on water depth data to adjust the drainage opening and control the drainage flow rate; at the same time, the water depth sensor can serve as a detection input for the energy storage management system to identify whether the cabinet is flooded, so that the management system can issue emergency commands such as power failure to ensure the safe operation of the energy storage system. 4) All components of the device are detachable, with high structural flexibility, convenient installation, and adaptability to energy storage cabinets of different specifications.

[0101] The specific embodiments of the invention have been described in detail above, but these are merely examples, and the invention is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications or substitutions to the invention are also within the scope of this invention. Therefore, all equivalent transformations, modifications, and improvements made without departing from the spirit and principles of this invention should be covered within the scope of this invention.

Claims

1. A drain seal apparatus, characterized by, The drainage sealing device comprises: a housing component for fixed installation at the bottom of the energy storage cabinet; an electric drainage module arranged inside the housing component; a hydraulic drainage module arranged inside the housing component; when the drainage sealing device is in the power supply mode, the electric drainage module is used for draining the liquid entering the inside of the housing component through the drainage port; when the drainage sealing device is in the power-off mode or the power supply mode, the hydraulic drainage module is used for draining the liquid entering the inside of the housing component through the drainage port.

2. The drain seal apparatus of claim 1, wherein, The electric drainage module comprises a first sealing assembly and an electric driving mechanism, and the drainage port comprises a first drainage port and a second drainage port; when the drainage sealing device is in the power supply mode, the electric driving mechanism is used for driving the first sealing assembly to act in response to the drainage instruction, so as to open the first drainage port and drain the liquid entering the inside of the housing component through the first drainage port; when the drainage sealing device is in the power-off mode or the power supply mode, the hydraulic drainage module is used for draining the liquid entering the inside of the housing component through the second drainage port.

3. The drain seal apparatus of claim 2, wherein, The electric driving mechanism comprises a motor, a screw rod, a first floating block and a pull rod mechanism; the motor is connected with the screw rod, the screw rod is arranged in the housing component and extends in the vertical direction, the first floating block is threadedly connected with the screw rod and can move in the vertical direction in response to the rotation of the screw rod, the first floating block is connected with the pull rod mechanism, and the other end of the pull rod mechanism is connected with the first sealing assembly; when the drainage sealing device is in the power supply mode, the motor drives the screw rod to rotate to drive the floating block to move in the vertical direction, and the pull rod mechanism is driven by the first floating block and is used for pulling the first sealing assembly to open, so as to open the first drainage port and drain the liquid entering the inside of the housing component through the first drainage port.

4. The drain seal apparatus of claim 3, wherein, The first sealing assembly comprises a plurality of cover plates; the cover plates are arranged outside the housing component and are used for plugging the first drainage port; when the drainage sealing device is in the power supply mode, the cover plates are opened under the pulling force of the pull rod mechanism, so as to open the first drainage port and drain the liquid entering the inside of the housing component through the first drainage port.

5. The drain seal apparatus of claim 4, wherein, The hydraulic drainage module comprises a hydraulic cavity, a floating assembly, a conduction assembly and a second sealing assembly; the hydraulic cavity is arranged inside the housing component and has a water inlet and an internal space for containing the liquid; the floating assembly is arranged in the hydraulic cavity and is connected with the conduction assembly; the second sealing assembly is used for plugging the second drainage port; when the drainage sealing device is in the power-off mode or the power supply mode, the floating assembly is used for floating up under the buoyancy, the conduction assembly generates a hydraulic pressure in response to the displacement of the floating assembly and transmits the hydraulic pressure to the second sealing assembly, and drives the second sealing assembly to open to open the second drainage port, so as to drain the liquid through the second drainage port.

6. The drain seal apparatus of claim 5, wherein, The floating assembly comprises a second floating block and a floating block guide structure; The second floating block is movable in a vertical direction within the hydraulic cavity and is floated by buoyancy when the liquid level rises; The floating block guiding structure is used to guide the movement of the second floating block within the hydraulic cavity.

7. The drain seal apparatus of claim 6, wherein, The conduction assembly comprises an upper push rod, a hydraulic channel and a lower push rod; The upper push rod is connected with the floating block and is used to receive the displacement pressure when the floating block is floated; The hydraulic channel is used to conduct hydraulic medium between the upper push rod and the lower push rod and form a hydraulic closed loop; The lower push rod is arranged above the second drain port and is moved downward after receiving the pressure transmitted by the hydraulic medium, thereby driving the second sealing assembly to open the second drain port.

8. The drain seal apparatus of claim 7, wherein, The second sealing assembly comprises a movable sealing body and an elastic reset member; The sealing body is used to block the second drain port in a normal state; When the lower push rod is pushed by hydraulic pressure, the sealing body is driven to open to open the second drain port; The sealing body is also used to open under the pushing of the lower push rod, thereby opening the second drain port and discharging liquid through the second drain port; When the hydraulic pressure is removed, the elastic reset member is used to reset the sealing body to block the second drain port.

9. The drain seal apparatus of any one of claims 1 to 8, wherein, The drain sealing device further comprises a controller and a water depth sensor; The water depth sensor is arranged inside the shell part and is used to detect the liquid level information in the drain sealing device in real time; The controller is electrically connected with the water depth sensor and the electric drain module; The controller is used to control the driving mechanism in the electric drain module according to the liquid level information collected by the water depth sensor; The controller is also configured to transmit the liquid level information of the water depth sensor to the energy management system of the energy storage system to indicate whether the energy storage cabinet is waterlogged and to issue a prompt information when a preset condition is met.

10. An energy storage cabinet, characterized by The drain sealing device comprises a cabinet body and the drain sealing device according to any one of claims 1 to 9.

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