An automatic liquid supplementing power stack device

Abstract

The utility model discloses an automatic liquid supplementing type power supply stack device relates to new energy and energy storage technical field, including main frame, liquid storage unit, monitoring module and liquid supplementing drive assembly, the top of main frame is equipped with the fixed support for installing liquid storage unit, and liquid storage unit is communicated with the inside of power supply stack through connecting pipeline, monitoring module installs one side of main frame and is connected with connecting pipeline, is used for real -time acquisition power supply stack inside liquid medium's state information, liquid supplementing drive assembly sets up below liquid storage unit, and cooperates with connecting pipeline through transmission mechanism, the utility model provides a kind of automatic liquid supplementing type power supply stack device, through the cooperation of liquid storage unit and connecting pipeline, liquid medium in liquid storage unit can be evenly distributed to each input point in the inside of power supply stack through connecting pipeline, solve the problem of uneven supply caused by traditional manual liquid supplementing mode, improve the efficiency and precision of liquid medium supplement.

Description

Technical Field

[0001] This utility model relates to the field of new energy and energy storage technology, specifically to an automatic liquid replenishment type power stack device. Background Technology

[0002] Power stacks are widely used in industrial sectors, and their efficient operation and automated maintenance have become key research areas. Especially in scenarios requiring high energy supply stability, optimizing power stack performance is crucial. However, current market-available equipment still has certain limitations in practical applications.

[0003] A search revealed a patent (CN114726085B) for a backup power supply system for a hydropower station, published on October 20, 2023. This solution uses a hydrogen fuel cell stack as the core component, improving the reliability of the uninterruptible power supply through a composite emergency power supply method. However, this design primarily focuses on power redundancy configuration and does not address the replenishment mechanism of the liquid medium inside the power stack. This makes it difficult to dynamically adjust parameters such as electrolyte concentration and temperature, potentially leading to performance degradation during long-term operation.

[0004] Furthermore, a SOFC battery control device with patent number CN109461950B, published on June 8, 2021, was found. This design includes functional modules such as a gas supply device and a temperature control system, which can adjust the gas supply according to the stack's operating status to improve efficiency. However, its electrolyte replenishment method relies on manual or external pumping systems and lacks intelligent automatic replenishment functionality. Under complex operating conditions, this may lead to uneven electrolyte supply or delayed response, thereby affecting the stack's output stability and lifespan.

[0005] While the aforementioned existing technologies have made some progress in power supply redundancy and operation monitoring of power stack systems, they have not effectively solved the problem of performance degradation caused by electrolyte consumption. Especially under high-temperature and high-load operating environments, the lack of an automatic electrolyte replenishment mechanism may adversely affect the output efficiency and safety of the power stack. Therefore, there is an urgent need for an automatic electrolyte replenishment power stack device with intelligent monitoring and dynamic replenishment functions to meet the demands of modern industry for efficient, safe, and sustainable energy systems. Utility Model Content

[0006] This invention provides an automatic liquid replenishment power stack device, aiming to solve the problem of performance degradation in existing power stacks due to the lack of an intelligent liquid medium replenishment mechanism. The specific solution is as follows: An automatic liquid replenishment power stack device includes a main frame, a liquid storage unit, a monitoring module, and a liquid replenishment drive assembly. The top of the main frame is provided with a fixed bracket for mounting the liquid storage unit, which is connected to the interior of the power stack via a connecting pipe. The monitoring module is installed on one side of the main frame and connected to the connecting pipe, used to collect real-time status information of the liquid medium inside the power stack. The liquid replenishment drive assembly is located below the liquid storage unit and cooperates with the connecting pipe through a transmission mechanism to adjust the flow of the liquid medium based on the information fed back by the monitoring module.

[0007] As a preferred embodiment, the bottom of the liquid storage unit is provided with multiple liquid outlets, each of which is connected to a connecting pipeline via an independent hose; the end of the connecting pipeline is provided with evenly distributed diverter connectors, the number of which corresponds one-to-one with the liquid medium input points inside the power stack; the outer wall of the hose is fitted with an elastic retaining ring, one end of which is fitted against the outer wall of the hose, and the other end is fixedly connected to the inner side wall of the main frame, in order to prevent the hose from shifting or twisting during the flow of the liquid medium.

[0008] Furthermore, the monitoring module includes a sensing component and a signal processing unit; the sensing component is installed in the middle of the connecting pipeline and is fixedly connected to the connecting pipeline through a threaded interface; the signal processing unit is located on one side of the sensing component and is electrically connected to the sensing component through a wire; the sensing component transmits the collected liquid medium state information to the signal processing unit for analysis and then outputs control commands.

[0009] In addition, the liquid replenishment drive assembly includes a drive shaft, a sliding block, and a return spring; one end of the drive shaft is movably connected to the bottom of the liquid storage unit, and the other end passes through the main frame and extends to the outside; the sliding block is sleeved in the middle of the drive shaft and slides along the axial direction of the drive shaft; one end of the return spring is fixedly connected to one side end face of the sliding block, and the other end is fixedly connected to the inner wall of the main frame; when the sliding block is subjected to an external driving force, it moves along the drive shaft and pushes the liquid medium in the liquid storage unit into the connecting pipeline.

[0010] Furthermore, the bottom of the main frame is provided with a guide groove, and a sliding limiting plate is installed inside the guide groove; one end of the limiting plate is connected to the bottom end of the sliding block by a hinge, and the other end is provided with a buffer pad between it and the inner wall of the main frame; when the sliding block moves to the limit position along the drive shaft, the limiting plate slides in the guide groove and supports the sliding block, preventing the sliding block from continuing to move due to inertia and affecting the flow stability of the liquid medium.

[0011] Preferably, the outer wall of the connecting pipe is provided with a spiral reinforcing rib, and the two ends of the reinforcing rib are fixedly connected to the two ends of the connecting pipe respectively; the surface of the reinforcing rib is coated with an anti-slip coating, the thickness of the anti-slip coating is uniform and covers the entire outer surface of the reinforcing rib; the design of the reinforcing rib can improve the overall strength of the connecting pipe, while reducing the vibration impact of the liquid medium on the pipe during the flow process.

[0012] In addition, a sealing strip is affixed to the outer wall of the connecting pipe away from the liquid storage unit, and the sealing strip is arranged along the length of the connecting pipe; one end face of the sealing strip is tightly fitted to the outer wall of the connecting pipe, and the other end face is in contact with the inner wall of the main frame; the design of the sealing strip can effectively prevent leakage of liquid medium during transportation.

[0013] In another preferred embodiment, an adjustment knob is provided on one side of the main frame, one end of which passes through the main frame and is fixedly connected to one end of the drive shaft; the outer wall of the adjustment knob is provided with anti-slip texture, which is evenly distributed along the circumferential direction of the adjustment knob; by rotating the adjustment knob, the rotation angle of the drive shaft can be manually controlled, thereby adjusting the moving distance of the sliding block.

[0014] Furthermore, the top of the sensing component is provided with a protective cover, and the inside of the protective cover is provided with a desiccant pack; the outer wall of the desiccant pack is fitted with the inner wall of the protective cover, and the shape of the desiccant pack matches the internal space of the protective cover; the design of the protective cover can prevent the external environment from interfering with the sensing component, while the desiccant pack can absorb the moisture inside the protective cover, ensuring the normal operation of the sensing component.

[0015] Finally, the top of the main frame is provided with a locking mechanism for fixing the liquid storage unit; the locking mechanism includes a latch and a rotating shaft; one end of the latch is movably connected to the top of the main frame through the rotating shaft, and the other end is engaged with the top of the liquid storage unit; the outer wall of the rotating shaft is provided with a lubricating coating, the thickness of the lubricating coating is uniform and covers the entire outer surface of the rotating shaft; the design of the locking mechanism can quickly realize the installation and disassembly of the liquid storage unit, making it convenient for users to maintain or replace the liquid storage unit.

[0016] Compared with the prior art, the present invention has at least one of the following advantages: 1. Through the cooperation of the liquid storage unit and the connecting pipeline, the liquid medium in the liquid storage unit can be evenly distributed to each input point inside the power stack through the connecting pipeline, which solves the problem of uneven supply caused by the traditional manual liquid replenishment method and improves the efficiency and accuracy of liquid medium replenishment.

[0017] 2. Through the design of the monitoring module, the sensing components of this device can collect the status information of the liquid medium inside the power stack in real time, and output control commands after analysis by the signal processing unit, realizing intelligent management of the liquid medium replenishment process and reducing the need for human intervention.

[0018] 3. Through the design of the liquid replenishment drive component, the device can precisely control the flow of liquid medium when the sliding block moves along the drive shaft. At the same time, the design of the reset spring can quickly reset the sliding block after it finishes moving, avoiding damage to the power stack caused by excessive flow of liquid medium.

[0019] 4. Through the design of the limiting plate, the device can support the sliding block when it moves to the limit position, preventing the sliding block from continuing to move due to inertia and causing instability in the flow of liquid medium, thus improving the reliability of the device operation.

[0020] 5. The device features a locking mechanism that allows for quick installation and removal of the liquid storage unit through the engagement of the latch and the rotating shaft. This facilitates maintenance or replacement of the liquid storage unit by the user. At the same time, the lubricating coating reduces wear on the locking mechanism during use and extends its service life. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partially enlarged view of the liquid storage unit and connecting pipeline in this utility model; Figure 3 This is a schematic diagram of the monitoring module in this utility model; Figure 4 This is a cross-sectional view of the fluid replenishment drive component in this utility model; Figure 5 This is a partially enlarged view of the locking mechanism of this utility model.

[0023] The attached figures are labeled as follows: 1. Main frame; 2. Liquid storage unit; 3. Monitoring module; 4. Liquid replenishment drive assembly; 5. Connecting pipeline; 6. Liquid outlet; 7. Hose; 8. Elastic retaining ring; 9. Sensing assembly; 10. Signal processing unit; 11. Drive shaft; 12. Sliding block; 13. Return spring; 14. Limit plate; 15. Locking mechanism; 16. Lock; 17. Rotating shaft. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] This utility model provides an automatic liquid replenishment type power stack device, the specific implementation of which is described in detail with reference to the accompanying drawings. Figure 1 As shown, the device includes a main frame 1, a liquid storage unit 2, a monitoring module 3, and a liquid replenishment drive assembly 4. The main frame 1 serves as the supporting structure for the entire device, and its top is equipped with a fixed bracket for mounting the liquid storage unit 2. The liquid storage unit 2 is connected to the inside of the power stack via a connecting pipe 5. The bottom of the liquid storage unit 2 has multiple liquid outlets 6, each of which is connected to the connecting pipe 5 via an independent flexible hose 7. An elastic retaining ring 8 is fitted onto the outer wall of the hose 7, with one end of the retaining ring 8 fitting against the outer wall of the hose 7 and the other end fixedly connected to the inner wall of the main frame 1. This design ensures that the hose 7 remains stable during the flow of liquid media, preventing displacement or twisting.

[0026] The end of the connecting pipe 5 is equipped with evenly distributed diversion joints, the number of which corresponds one-to-one with the liquid medium input points inside the power stack. The outer wall of the connecting pipe 5 is provided with spiral reinforcing ribs, each end of which is fixedly connected to both ends of the connecting pipe 5. The surface of the reinforcing ribs is coated with an anti-slip coating of uniform thickness that covers the entire outer surface of the reinforcing ribs. This design improves the overall strength of the connecting pipe 5 while reducing the vibration impact of the liquid medium during flow. Furthermore, a sealing strip is affixed to the outer wall of the connecting pipe 5 away from the liquid storage unit 2, arranged along the length of the connecting pipe 5. One end face of the sealing strip is tightly fitted to the outer wall of the connecting pipe 5, while the other end face contacts the inner wall of the main frame 1, effectively preventing leakage of the liquid medium during transport.

[0027] Monitoring module 3 is installed on one side of the main frame 1 and connected to the connecting pipe 5, used to collect real-time status information of the liquid medium inside the power stack. For example... Figure 3 As shown, the monitoring module 3 includes a sensing component 9 and a signal processing unit 10. The sensing component 9 is installed in the middle of the connecting pipe 5 and is fixedly connected to the connecting pipe 5 via a threaded interface. The signal processing unit 10 is located on one side of the sensing component 9 and is electrically connected to the sensing component 9 via a wire. A protective cover is provided on the top of the sensing component 9, and a desiccant pack is placed inside the protective cover. The outer wall of the desiccant pack fits against the inner wall of the protective cover, and the shape of the desiccant pack matches the internal space of the protective cover. The design of the protective cover can prevent interference from the external environment to the sensing component 9, while the desiccant pack can absorb moisture inside the protective cover, ensuring the normal operation of the sensing component 9.

[0028] The liquid replenishment drive assembly 4 is located below the liquid storage unit 2 and cooperates with the connecting pipeline 5 through a transmission mechanism. For example... Figure 4 As shown, the liquid replenishment drive assembly 4 includes a drive shaft 11, a sliding block 12, and a return spring 13. One end of the drive shaft 11 is movably connected to the bottom of the liquid storage unit 2, and the other end passes through the main frame 1 and extends to the outside. The sliding block 12 is sleeved in the middle of the drive shaft 11 and slides along the axial direction of the drive shaft 11. One end of the return spring 13 is fixedly connected to one side end face of the sliding block 12, and the other end is fixedly connected to the inner wall of the main frame 1. When the sliding block 12 is subjected to an external driving force, it moves along the drive shaft 11 and pushes the liquid medium in the liquid storage unit 2 into the connecting pipe 5. The design of the return spring 13 enables the sliding block 12 to quickly return to its original position after movement, preventing excessive flow of the liquid medium from damaging the power stack.

[0029] The bottom of the main frame 1 is provided with a guide groove, and a sliding limiting plate 14 is installed inside the guide groove. One end of the limiting plate 14 is connected to the bottom end of the sliding block 12 by a hinge, and the other end is provided with a buffer pad between it and the inner wall of the main frame 1. When the sliding block 12 moves to its limit position along the drive shaft 11, the limiting plate 14 slides in the guide groove and supports the sliding block 12, preventing the sliding block 12 from continuing to move due to inertia and affecting the flow stability of the liquid medium. An adjustment knob is provided on one side of the main frame 1. One end of the adjustment knob passes through the main frame 1 and is fixedly connected to one end of the drive shaft 11. The outer wall of the adjustment knob is provided with anti-slip texture, which is evenly distributed along the circumferential direction of the adjustment knob. By rotating the adjustment knob, the rotation angle of the drive shaft 11 can be manually controlled, thereby adjusting the moving distance of the sliding block 12.

[0030] The top of the main frame 1 is equipped with a locking mechanism 15 for fixing the liquid storage unit 2. For example... Figure 5 As shown, the locking mechanism 15 includes a latch 16 and a rotating shaft 17. One end of the latch 16 is movably connected to the top of the main frame 1 via the rotating shaft 17, and the other end is engaged with the top of the liquid storage unit 2. The outer wall of the rotating shaft 17 is provided with a lubricating coating, which is uniform in thickness and covers the entire outer surface of the rotating shaft 17. The design of the locking mechanism 15 enables quick installation and removal of the liquid storage unit 2, facilitating user maintenance or replacement of the liquid storage unit 2. At the same time, the lubricating coating reduces wear on the locking mechanism 15 during use, extending its service life.

[0031] In practical applications, the device operates as follows: First, the liquid storage unit 2 is fixed to the top of the main frame 1 using the locking mechanism 15, ensuring a tight and reliable connection between the liquid outlet 6 of the liquid storage unit 2 and the connecting pipe 5. Then, the monitoring module 3 is activated, and the sensing component 9 collects real-time status information of the liquid medium inside the power stack, transmitting the collected information to the signal processing unit 10 for analysis. The signal processing unit 10 outputs control commands based on the analysis results, controlling the action of the liquid replenishment drive component 4. When liquid medium needs to be replenished, the rotation angle of the drive shaft 11 is manually controlled by rotating the adjustment knob, causing the sliding block 12 to move along the drive shaft 11. The movement of the sliding block 12 pushes the liquid medium in the liquid storage unit 2 through the outlet 6 into the hose 7, and then evenly distributes it to various input points inside the power stack via the connecting pipe 5. During this process, the elastic retaining ring 8 ensures that the hose 7 does not shift or twist, and the reinforcing ribs and sealing strips jointly ensure the stability and sealing of the connecting pipe 5. When the sliding block 12 moves to its limit position, the limiting plate 14 slides within the guide groove and provides support, preventing the sliding block 12 from continuing to move due to inertia and causing instability in the flow of the liquid medium. Finally, the return spring 13 quickly resets the sliding block 12, completing one liquid replenishment operation.

[0032] Through the aforementioned structure and operation process, this device achieves intelligent replenishment of the liquid medium inside the power stack, solving the problem of uneven supply caused by traditional manual replenishment methods and improving the efficiency and accuracy of liquid medium replenishment. Simultaneously, the device's design fully considers the connection, position, and coordination relationships between components, ensuring the stability and reliability of the device's operation.

[0033] To enable those skilled in the art to fully understand and implement this utility model, the specific implementation principle of this utility model is further explained below in conjunction with a specific application scenario.

[0034] In real-world industrial scenarios, this automatic electrolyte replenishment power stack device is applied to fuel cell systems operating under high loads. Because prolonged operation of fuel cells leads to a decrease in electrolyte concentration and temperature fluctuations, it is necessary to monitor and dynamically replenish the liquid medium in real time to maintain stable performance. The following is an explanation of the device's operation process and operating principles in practical applications.

[0035] First, the liquid storage unit 2 is fixed to the top of the main frame 1 by the locking mechanism 15, ensuring a tight and reliable connection between the liquid outlet 6 of the liquid storage unit 2 and the connecting pipe 5. The latch 16 is movably connected to the main frame 1 via a rotating shaft 17. Its outer wall is coated with a lubricating layer to reduce frictional resistance during rotation, while the snap-fit ​​structure between the latch 16 and the top of the liquid storage unit 2 ensures a secure installation. This design allows for quick disassembly and reinstallation of the liquid storage unit 2 during frequent replacement or maintenance, thereby improving operational efficiency.

[0036] Subsequently, monitoring module 3 is activated, and sensing component 9 begins to collect real-time status information of the liquid medium inside the power stack. Sensing component 9 is fixed to the middle of connecting pipe 5 via a threaded interface, and its top is equipped with a protective cover containing a desiccant pack to absorb moisture. This design effectively prevents interference from the external environment, ensuring the accuracy of the collected data. After receiving the data transmitted by sensing component 9, signal processing unit 10 analyzes it and outputs control commands. For example, when the electrolyte concentration is detected to be lower than a preset threshold, signal processing unit 10 triggers the action of liquid replenishment drive component 4.

[0037] When liquid medium needs to be replenished, the user can manually control the rotation angle of the drive shaft 11 by rotating the adjustment knob. The anti-slip texture design of the adjustment knob facilitates precise adjustment of the rotation amplitude of the drive shaft 11, thereby controlling the movement distance of the sliding block 12. The sliding block 12 slides axially along the drive shaft 11, pushing the liquid medium in the storage unit 2 into the hose 7 through the outlet 6, and then evenly distributed to each input point inside the power stack via the connecting pipe 5. During this process, the elastic retaining ring 8 is fitted on the outer wall of the hose 7, with one end fitting against the hose 7 and the other end fixedly connected to the inner wall of the main frame 1, ensuring that the hose 7 remains stable during the flow of liquid medium and preventing displacement or twisting.

[0038] When the liquid medium flows in the connecting pipe 5, the spiral reinforcing ribs enhance the overall strength of the pipe, while the anti-slip coating on its surface reduces the impact of vibration, thereby improving the stability of the transport. Furthermore, a sealing strip is affixed to the outer wall of the connecting pipe 5 away from the liquid storage unit 2. One end of the sealing strip is in close contact with the outer wall of the connecting pipe 5, and the other end is in contact with the inner wall of the main frame 1, effectively preventing leakage of the liquid medium during transport. These designs work together to ensure efficient and stable transmission of the liquid medium from the liquid storage unit 2 to the inside of the power stack.

[0039] When the sliding block 12 moves to its limit position along the drive shaft 11, the limiting plate 14 slides within the guide groove and supports the sliding block 12. The design of the buffer pad prevents the sliding block 12 from continuing to move due to inertia, thus avoiding instability in the flow of the liquid medium. One end of the return spring 13 is fixedly connected to the sliding block 12, and the other end is fixedly connected to the inner wall of the main frame 1. After the sliding block 12 completes its liquid pushing action, it quickly resets the sliding block, thereby preventing excessive flow of the liquid medium from damaging the power stack. This mechanism significantly improves the accuracy and safety of the liquid replenishment process.

[0040] Through the above steps, the device achieves intelligent replenishment of the liquid medium inside the power stack. The cooperation between the liquid storage unit 2 and the connecting pipeline 5 ensures that the liquid medium can be evenly distributed to each input point inside the power stack, solving the problem of uneven supply caused by traditional manual replenishment methods. The sensing component 9 of the monitoring module 3 collects the liquid medium status information in real time, and outputs control commands after analysis by the signal processing unit 10, realizing automated management of the replenishment process. The replenishment drive component 4 controls the flow rate of the liquid medium by precisely moving the sliding block 12 along the drive shaft 11, while the design of the return spring 13 avoids the risk of over-replenishment. The limit plate 14 provides support when the sliding block 12 reaches the limit position, further improving the reliability of the device operation.

[0041] In summary, this automatic liquid replenishment power stack device, through the coordinated operation of its components, can dynamically adjust the concentration and distribution of the liquid medium under high temperature and high load operating conditions, thereby effectively maintaining the performance stability of the power stack. Its design fully considers the connection, position, and coordination relationships between components, ensuring the high efficiency and reliability of the device's operation and meeting the modern industrial demands for the security and sustainability of energy systems.

[0042] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic liquid replenishment type power stack device, characterized in that, The system includes a main frame (1), a liquid storage unit (2), a monitoring module (3), and a liquid replenishment drive assembly (4). The top of the main frame (1) is provided with a fixed bracket for installing the liquid storage unit (2), which is connected to the inside of the power stack via a connecting pipe (5). The monitoring module (3) is installed on one side of the main frame (1) and connected to the connecting pipe (5) to collect the status information of the liquid medium inside the power stack in real time. The liquid replenishment drive assembly (4) is located below the liquid storage unit (2) and works with the connecting pipe (5) through a transmission mechanism to adjust the flow of the liquid medium according to the information fed back by the monitoring module (3).

2. The automatic liquid replenishment type power stack device according to claim 1, characterized in that, The bottom of the liquid storage unit (2) is provided with multiple liquid outlets (6), and each liquid outlet (6) is connected to the connecting pipeline (5) through an independent hose (7); The end of the connecting pipe (5) is provided with a uniformly distributed diversion connector, and the number of diversion connectors corresponds one-to-one with the liquid medium input point inside the power stack. The outer wall of the hose (7) is fitted with an elastic retaining ring (8). One end of the elastic retaining ring (8) is attached to the outer wall of the hose (7), and the other end is fixedly connected to the inner wall of the main frame (1).

3. The automatic liquid replenishment type power stack device according to claim 1, characterized in that, The monitoring module (3) includes a sensing component (9) and a signal processing unit (10). The sensing component (9) is installed in the middle of the connecting pipe (5) and is fixedly connected to the connecting pipe (5) through a threaded interface; The signal processing unit (10) is located on one side of the sensing component (9) and is electrically connected to the sensing component (9) via a wire.

4. The automatic liquid replenishment type power stack device according to claim 1, characterized in that, The fluid replenishment drive assembly (4) includes a drive shaft (11), a sliding block (12), and a return spring (13). One end of the drive shaft (11) is movably connected to the bottom of the liquid storage unit (2), and the other end passes through the main frame (1) and extends to the outside; The sliding block (12) is sleeved on the middle position of the drive shaft (11) and slides along the axial direction of the drive shaft (11); One end of the reset spring (13) is fixedly connected to one side end face of the sliding block (12), and the other end is fixedly connected to the inner wall of the main frame (1).

5. The automatic liquid replenishment type power stack device according to claim 1, characterized in that, The bottom of the main frame (1) is provided with a guide groove, and a sliding limiting plate (14) is installed inside the guide groove. One end of the limiting plate (14) is connected to the bottom end of the sliding block (12) by a hinge, and the other end is provided with a buffer pad between it and the inner wall of the main frame (1).

6. The automatic liquid replenishment type power stack device according to claim 1, characterized in that, The outer wall of the connecting pipe (5) is provided with a spiral reinforcing rib, and the two ends of the reinforcing rib are fixedly connected to the two ends of the connecting pipe (5); The surface of the reinforcing rib is coated with an anti-slip coating, which has a uniform thickness and covers the entire outer surface of the reinforcing rib.

7. The automatic liquid replenishment type power stack device according to claim 1, characterized in that, A sealing strip is attached to the outer wall of the connecting pipe (5) away from the liquid storage unit (2), and the sealing strip is arranged along the length of the connecting pipe (5); One end face of the sealing strip is tightly fitted to the outer wall of the connecting pipe (5), and the other end face is in contact with the inner wall of the main frame (1).

8. The automatic liquid replenishment type power stack device according to claim 1, characterized in that, An adjustment knob is provided on one side of the main frame (1). One end of the adjustment knob passes through the main frame (1) and is fixedly connected to one end of the drive shaft (11). The outer wall of the adjustment knob is provided with anti-slip texture, which is evenly distributed along the circumferential direction of the adjustment knob.

9. An automatic liquid replenishment type power stack device according to claim 3, characterized in that, The top of the sensing component (9) is provided with a protective cover, and the inside of the protective cover is provided with a desiccant pack; The outer wall of the desiccant pack fits into the inner wall of the protective cover, and the shape of the desiccant pack matches the internal space of the protective cover.

10. An automatic liquid replenishment type power stack device according to claim 1, characterized in that, The top of the main frame (1) is provided with a locking mechanism (15) for fixing the liquid storage unit (2). The locking mechanism (15) includes a latch (16) and a pivot (17). One end of the latch (16) is movably connected to the top of the main frame (1) via a pivot (17), and the other end is snapped into the top of the liquid storage unit (2); The outer wall of the shaft (17) is provided with a lubricating coating, the thickness of which is uniform and covers the entire outer surface of the shaft (17).

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