Stacked full-immersion energy storage device
By employing an interference fit between rubber rings and grooves, along with a fixing mechanism and self-locking components in the energy storage device, the problems of poor sealing and cumbersome battery installation have been solved, resulting in improved sealing, convenient battery replacement, and enhanced equipment safety and operational efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-07
AI Technical Summary
Existing energy storage devices suffer from aging gaskets, poor sealing, and difficulty in replacement. The installation and maintenance of individual batteries are cumbersome, affecting the stability and safety of the equipment.
The sealing mechanism uses an interference fit between the rubber ring and the groove, the fixing mechanism works with the self-locking component, and the locking component secures the sealing cover with a retaining ring, simplifying the battery installation and removal process.
It improves sealing and ease of replacement, simplifies battery installation and maintenance, and enhances the safety and operational efficiency of the device.
Smart Images

Figure CN224096817U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of energy storage technology, and in particular to a stacked fully submerged energy storage device. Background Technology
[0002] Stacked fully submerged energy storage devices are widely used in the field of power energy storage, especially in renewable energy (such as solar and wind) power generation systems, to stabilize the power grid and regulate fluctuations in power supply and demand. They are primarily used to store excess electrical energy and release it during peak demand periods or when power supply is unstable, ensuring grid stability. These energy storage devices typically possess highly efficient energy storage and release capabilities, effectively improving energy utilization, reducing energy waste, and, in conjunction with battery management and cooling systems, extending the equipment's lifespan to meet the energy storage needs of large-scale power systems.
[0003] Existing energy storage devices generally employ traditional battery module designs, but this design has several drawbacks. First, the sealing gaskets on the sealing caps are typically fixed to the cap itself, and these gaskets are prone to aging after prolonged use and are difficult to replace. This can lead to liquid leakage or battery overheating, thereby affecting the stability and safety of the device. Second, the installation and replacement of traditional single-cell batteries are cumbersome. The installation, disassembly, and maintenance of batteries require significant manpower and time, reducing work efficiency and increasing maintenance costs.
[0004] To address this issue, a stacked fully submerged energy storage device is proposed. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a stacked fully submerged energy storage device, which aims to improve the problems of difficult gasket replacement, poor sealing performance, and cumbersome installation and maintenance of individual batteries.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a stacked fully immersed energy storage device, comprising a housing, wherein multiple mounting columns are fixedly connected inside the housing, and a fixing mechanism is provided inside the mounting columns; multiple individual batteries are disposed inside the housing, and T-shaped blocks are fixedly connected to both sides of each individual battery; a sealing cover is connected to the outside of the housing via a hinge; a sealing mechanism is provided on the side of the sealing cover near the housing; a locking component is provided on the outside of the housing; at least one liquid inlet pipe is fixedly connected to the outside of the housing; and a liquid outlet pipe is fixedly connected to the outside of the housing.
[0007] The sealing mechanism includes a sealing gasket, a plurality of circular pillars are fixedly connected to the top of the sealing gasket, a rubber ring is fitted on the outside of the circular pillars, and a circular hole corresponding to the circular pillar is opened on the side of the sealing cover near the sealing gasket, and a groove is opened inside the circular hole.
[0008] As a further description of the above technical solution:
[0009] The fixing mechanism includes an outer shell, the outer side of which is fixedly connected to the inside of the mounting column, and an inner shell fixedly connected to the inside of the outer shell. A pin is slidably connected inside the inner shell, a self-locking component is provided on the outer side of the pin, and a spring is sleeved on the outer side of the pin.
[0010] As a further description of the above technical solution:
[0011] The locking assembly includes two fixing plates, both of which are fixedly connected to the outside of the housing. Two retaining rings are rotatably connected between the two fixing plates via a rotating shaft. A pressure plate is fixedly connected to the outside of the retaining rings. A spring is fixedly connected between the pressure plate and the housing. A fixing post is fixedly connected to the outside of the sealing cover. The fixing post is engaged between the two retaining rings. Multiple cooling fans are installed on the outside of the housing.
[0012] As a further description of the above technical solution:
[0013] The self-locking assembly includes a pad, which is fixedly connected to the outside of the pin. A locking block is fixedly connected to the outside of the pad, and a U-shaped slot is provided on the outside of the inner shell.
[0014] As a further description of the above technical solution:
[0015] The circular cylinder is slidably connected inside the circular hole, the rubber ring is snapped into the groove, and the liquid outlet pipe is located above the liquid inlet pipe.
[0016] As a further description of the above technical solution:
[0017] The T-shaped block is slidably connected inside the mounting column, and the pin is inserted into the T-shaped block.
[0018] As a further description of the above technical solution:
[0019] One end of the second spring is fixedly connected to one side of the pad, and the other end of the second spring abuts against the inner wall of the inner shell.
[0020] As a further description of the above technical solution:
[0021] The pad is slidably connected inside the inner shell, and the locking block is slidably connected inside the U-shaped slot.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the interference fit between the rubber ring and the groove in the sealing mechanism achieves the technical effect of improving the sealing effect and ensuring the sealing performance of the device. Compared with the common sealing designs in the prior art, this solution makes the sealing gasket easier to replace, avoids sealing failure or leakage problems, and solves the shortcomings of the prior art in terms of sealing performance and ease of replacement.
[0024] 2. In this utility model, the fixing mechanism, in conjunction with the self-locking component, achieves the technical effect of facilitating the installation and replacement of individual batteries. Compared with the prior art, users can install and remove batteries more quickly and easily, avoiding the difficulties or instability of manual operation, and improving maintenance efficiency and operational safety.
[0025] 3. In this utility model, the retaining ring in the locking mechanism tightly clamps the fixing post, achieving a stable fixation between the sealing cover and the housing. Compared with the easily loosening fixing methods in the prior art, this solution, through a simple and effective retaining ring design, ensures that the sealing cover will not fall off or loosen during use, improving the overall safety and sealing performance of the device. Attached Figure Description
[0026] Figure 1 This is a three-dimensional schematic diagram of a stacked fully submerged energy storage device proposed in this utility model;
[0027] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0028] Figure 3 This is a schematic diagram of the internal structure of a stacked fully submerged energy storage device proposed in this utility model;
[0029] Figure 4 for Figure 3 Enlarged view of point B in the middle;
[0030] Figure 5 This is a schematic diagram of the structure of a single battery explosion in a stacked fully immersed energy storage device proposed in this utility model;
[0031] Figure 6 for Figure 5 Enlarged view of point C in the middle;
[0032] Figure 7 This is a structural schematic diagram of the explosive cross-section of the sealing cover of a stacked fully submerged energy storage device proposed in this utility model.
[0033] Legend:
[0034] 1. Sealing cap; 2. Liquid outlet pipe; 3. Liquid inlet pipe; 4. Cooling fan; 5. Housing; 6. Fixing post; 7. Fixing plate; 8. Sealing gasket; 9. Spring 1; 10. Pressure plate; 11. Snap ring; 12. Single cell; 13. T-block; 14. Outer shell; 15. Mounting post; 16. Pin; 17. Locking block; 18. Pad; 19. Spring 2; 20. Inner shell; 21. U-shaped groove; 22. Circular hole; 23. Groove; 24. Rubber ring; 25. Circular post. Detailed Implementation
[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0036] Reference Figure 1 - Figure 7 An embodiment of this utility model is provided: a stacked fully immersed energy storage device, including a housing 5, a plurality of mounting columns 15 fixedly connected inside the housing 5, a fixing mechanism provided inside the mounting columns 15, a plurality of individual batteries 12 disposed inside the housing 5, T-shaped blocks 13 fixedly connected to both sides of the individual batteries 12, a sealing cover 1 connected to the outside of the housing 5 by a hinge, a sealing mechanism provided on the side of the sealing cover 1 near the housing 5, a locking component provided on the outside of the housing 5, at least one liquid inlet pipe 3 fixedly connected to the outside of the housing 5, and a liquid outlet pipe 2 fixedly connected to the outside of the housing 5;
[0037] The sealing mechanism includes a sealing gasket 8, with multiple circular pillars 25 fixedly connected to the top of the sealing gasket 8. A rubber ring 24 is fitted on the outside of the circular pillars 25. A circular hole 22 corresponding to the circular pillars 25 is opened on the side of the sealing cover 1 near the sealing gasket 8. A groove 23 is opened inside the circular hole 22. The circular pillars 25 are slidably connected inside the circular hole 22. The rubber ring 24 is snapped into the groove 23. The liquid outlet pipe 2 is located above the liquid inlet pipe 3.
[0038] The housing 5 provides structural support and protection for the entire energy storage device. Multiple mounting posts 15 are fixedly connected inside to support and position individual battery cells 12. A fixing mechanism inside each mounting post 15 secures the individual battery cells 12 within the mounting post 15. T-shaped blocks 13 are fixedly connected to both sides of each individual battery cell 12. The T-shaped blocks 13 cooperate with the mounting posts 15 and are then fixed in place by the fixing mechanism. A sealing cover 1 is connected to the outside of the housing 5 via a hinge, allowing the device to be easily opened or closed for convenient battery maintenance and replacement. A sealing mechanism is located on the side of the sealing cover 1 closest to the housing 5. The sealing mechanism consists of a sealing gasket 8, circular posts 25, and a rubber ring 24. Multiple circular posts 25 are fixedly connected to the top of the sealing gasket 8. Rubber rings 24 are fitted onto the outer sides of the circular posts 25. A circular hole 22 is opened at a corresponding position on the sealing cover 1. The circular hole 22 has a groove 23 inside. The circular posts 25 slide within the circular hole 22, and the rubber ring 24 engages with the groove 23, forming a tight seal through an interference fit to prevent liquid leakage. A locking assembly is provided on the outside of the housing 5 for locking after the sealing cover 1 is closed, ensuring a reliable seal. At least one inlet pipe 3 and an outlet pipe 2 are also fixedly connected to the outside of the housing 5, facilitating the circulation of coolant or insulating liquid inside the housing 5. The outlet pipe 2 is located above the inlet pipe 3, which helps the liquid enter from the bottom and exit from the top, forming a good flow path, thereby improving the cooling or insulation efficiency of the battery pack.
[0039] Reference Figure 3 , Figure 4 , Figure 5 and Figure 6 The fixing mechanism includes a housing 14, which is fixedly connected to the outside of the mounting post 15. An inner housing 20 is fixedly connected to the inside of the housing 14. A pin 16 is slidably connected inside the inner housing 20. A self-locking component is provided on the outside of the pin 16. A spring 19 is sleeved on the outside of the pin 16. A T-shaped block 13 is slidably connected to the inside of the mounting post 15. The pin 16 is inserted into the inside of the T-shaped block 13.
[0040] The outer casing 14 is fixedly connected to the inside of the mounting post 15, stabilizing the installation position and ensuring the entire fixing mechanism is securely embedded in the mounting post 15. An inner casing 20 is fixedly connected inside the outer casing 14, further limiting the movement trajectory of the pin 16 and ensuring it slides within a specific path. The pin 16, as a key connecting and locking component, slides within the inner casing 20 and inserts into the T-block 13, effectively locking the T-block 13 to the mounting post 15, thereby securing the individual battery 12. A self-locking component is provided on the outside of the pin 16. This component can temporarily lock the pin 16 by rotating it after it is pulled out, eliminating the need for continuous pulling. A second spring 19 is also fitted on the outside of the pin 16, providing elastic restoring force so that the pin 16 automatically springs back after operation, facilitating subsequent disassembly or replacement. The T-shaped block 13 is slidably connected inside the mounting post 15. Through the insertion and fixing of the pin 16, it realizes the reliable positioning and quick assembly / disassembly of the single battery 12 inside the housing 5.
[0041] Reference Figure 1 - Figure 3 The locking assembly includes two fixing plates 7, both of which are fixedly connected to the outside of the housing 5. Two retaining rings 11 are rotatably connected between the two fixing plates 7 via a rotating shaft. A pressure plate 10 is fixedly connected to the outside of the retaining rings 11. A spring 9 is fixedly connected between the pressure plate 10 and the housing 5. A fixing post 6 is fixedly connected to the outside of the sealing cover 1. The fixing post 6 is engaged between the two retaining rings 11. Multiple cooling fans 4 are installed on the outside of the housing 5.
[0042] Two fixing plates 7 are fixedly connected to the outside of the housing 5, providing support and a stable foundation for the locking assembly. Two retaining rings 11 are rotatably connected between the two fixing plates 7 via a rotating shaft. The retaining rings 11 can rotate around the shaft, providing an opening and closing function to control whether the fixing post 6 is locked. A pressure plate 10 is fixedly connected to the outside of the retaining rings 11. A spring 9 is fixedly connected between the pressure plate 10 and the housing 5. The spring 9 provides a restoring force to the pressure plate 10, ensuring that the two retaining rings 11 can clamp the fixing post 6, thus ensuring the locking of the sealing cover 1. A fixing post 6 is fixedly connected to the outside of the sealing cover 1, and the fixing post 6 is engaged between the two retaining rings 11, further strengthening the fixed connection between the retaining rings 11 and the sealing cover 1, making the sealing cover 1 more securely locked to the housing 5, improving the safety and reliability of the entire energy storage device. Multiple cooling fans 4 are also installed on the outside of the housing 5. The cooling fans 4 help improve the heat dissipation performance of the energy storage device, preventing system failure or efficiency degradation due to high internal battery temperatures, ensuring the equipment operates in a highly efficient and stable state.
[0043] Reference Figure 3 , Figure 4 , Figure 5 and Figure 6The self-locking assembly includes a pad 18, which is fixedly connected to the outside of the pin 16. A locking block 17 is fixedly connected to the outside of the pad 18. A U-shaped slot 21 is provided on the outside of the inner shell 20. One end of a spring 19 is fixedly connected to one side of the pad 18, and the other end of the spring 19 abuts against the inner wall of the inner shell 20. The pad 18 is slidably connected inside the inner shell 20, and the locking block 17 is slidably connected inside the U-shaped slot 21. When the pin 16 is pulled out, rotating the pin 16 can cause the locking block 17 to lock in the U-shaped slot 21, thus temporarily locking the pin 16 in that position without requiring continuous force to pull it. Then, in this state, the pin 16 can be slightly pulled and rotated in the opposite direction, causing the locking block 17 to slide in the U-shaped slot 21, thereby unlocking the pin 16.
[0044] Working Principle: When using this energy storage device, first place the housing 5 in a suitable position. Next, pull the pin 16 on the mounting post 15 inside the housing 5 to pull out and rotate the pin 16, causing the locking block 17 to engage in the U-shaped slot 21. The pin 16 is temporarily locked at this point, and there is no need to maintain a constant pulling force on the pin 16. Then, insert the T-shaped blocks 13 on both sides of the multiple individual batteries 12 into the corresponding mounting posts 15. Next, slightly pull the pin 16 to rotate it, and then rotate the pin 16 in the opposite direction. At this time, the locking block 17 can slide within the U-shaped slot 21, and the pin 16 is unlocked. Finally, release the pin 16. Under the action of the spring 19, the pin 16 will automatically insert into the T-shaped block 13, thus completing the installation of each individual battery 12.
[0045] After installing the individual battery 12, insert the circular post 25 on the sealing gasket 8 into the corresponding circular hole 22 on the sealing cover 1, so that the rubber ring 24 is engaged in the groove 23, ensuring that the sealing gasket 8 is fixed in place. Then, close the sealing cover 1 and engage the fixing post 6 on the sealing cover 1 between the two retaining rings 11 to lock the sealing cover 1.
[0046] Finally, coolant or insulating fluid is injected into the housing 5 through the inlet pipe 3, and then discharged through the outlet pipe 2, ensuring that the internal temperature of the device is effectively regulated. At the same time, multiple cooling fans 4 are activated to further reduce the temperature, ensuring that the energy storage device is always kept within the optimal operating temperature range, thus ensuring the stability and efficiency of the system.
[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A stacked fully submerged energy storage device, comprising a housing (5), characterized in that: Multiple mounting posts (15) are fixedly connected inside the housing (5). A fixing mechanism is provided inside the mounting posts (15). Multiple single cells (12) are provided inside the housing (5). T-shaped blocks (13) are fixedly connected to both sides of the single cells (12). A sealing cover (1) is connected to the outside of the housing (5) via a hinge. A sealing mechanism is provided on the side of the sealing cover (1) near the housing (5). A locking component is provided on the outside of the housing (5). At least one liquid inlet pipe (3) is fixedly connected to the outside of the housing (5). A liquid outlet pipe (2) is fixedly connected to the outside of the housing (5). The sealing mechanism includes a sealing gasket (8), and a plurality of circular columns (25) are fixedly connected to the top of the sealing gasket (8). A rubber ring (24) is fitted on the outside of the circular column (25). The sealing cover (1) has a circular hole (22) corresponding to the circular column (25) on the side near the sealing gasket (8). A groove (23) is formed inside the circular hole (22).
2. The stacked fully submerged energy storage device according to claim 1, characterized in that: The fixing mechanism includes a housing (14), the outer side of which is fixedly connected to the inside of the mounting post (15), and an inner shell (20) is fixedly connected inside the housing (14). A pin (16) is slidably connected inside the inner shell (20). A self-locking component is provided on the outer side of the pin (16), and a spring (19) is sleeved on the outer side of the pin (16).
3. The stacked fully submerged energy storage device according to claim 1, characterized in that: The locking assembly includes two fixing plates (7), both of which are fixedly connected to the outside of the housing (5). Two retaining rings (11) are rotatably connected between the two fixing plates (7) via a rotating shaft. A pressure plate (10) is fixedly connected to the outside of the retaining rings (11). A spring (9) is fixedly connected between the pressure plate (10) and the housing (5). A fixing post (6) is fixedly connected to the outside of the sealing cover (1). The fixing post (6) is engaged between the two retaining rings (11). Multiple cooling fans (4) are installed on the outside of the housing (5).
4. A stacked fully submerged energy storage device according to claim 2, characterized in that: The self-locking assembly includes a pad (18), which is fixedly connected to the outside of the pin (16). A locking block (17) is fixedly connected to the outside of the pad (18), and a U-shaped slot (21) is provided on the outside of the inner shell (20).
5. A stacked fully submerged energy storage device according to claim 1, characterized in that: The circular column (25) is slidably connected inside the circular hole (22), the rubber ring (24) is snapped into the groove (23), and the liquid outlet pipe (2) is located above the liquid inlet pipe (3).
6. A stacked fully submerged energy storage device according to claim 2, characterized in that: The T-shaped block (13) is slidably connected inside the mounting post (15), and the pin (16) is inserted into the T-shaped block (13).
7. A stacked fully submerged energy storage device according to claim 4, characterized in that: One end of the second spring (19) is fixedly connected to one side of the pad (18), and the other end of the second spring (19) abuts against the inner wall of the inner shell (20).
8. A stacked fully submerged energy storage device according to claim 4, characterized in that: The pad (18) is slidably connected inside the inner shell (20), and the card block (17) is slidably connected inside the U-shaped card slot (21).