A battery cell clamping mechanism and clamping method for a liquid-cooled energy storage battery

Abstract

The present invention discloses a cell clamping mechanism for a liquid-cooled energy storage battery, which belongs to the technical field of energy storage battery processing. The present invention includes a slide seat, the left and right ends of the slide seat are fixedly connected with positioning end covers by bolts, and a cylinder is installed in the middle of the upper end of the slide seat; it also includes: the telescopic end of the cylinder is fixedly connected with a linkage, and the front and rear sides of the linkage are fixedly connected with vertical guide columns, the left and right ends of the linkage are inserted into the steering groove on the clamping claw seat, and the clamping claw seat is connected to each other through a clamping spring and the positioning end cover on the side of the slide seat, and the middle of the lower end of the slide seat is fixedly connected with a fixed plate. The cell clamping mechanism for the liquid-cooled energy storage battery and the clamping method thereof can maintain the clamping state without air source pressure in the clamping state through the clamping claw with a spring, which is both safe and energy-saving. At the same time, when the battery is clamped, it is convenient to position the battery in multiple directions to ensure the stability of the battery when it is clamped and transferred.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage battery processing, and in particular to a battery cell clamping mechanism and a clamping method for a liquid-cooled energy storage battery. Background Art

[0002] Liquid-cooled energy storage batteries are generally commercial energy storage batteries with the following main features: large battery capacity, large battery cell mass, and high cost. The operation and clamping of batteries are widely used in the process of automated PACK, and the clamping device is crucial to every link of the top clamping operation.

[0003] For example, the square lithium battery gripping manipulator device with publication number CN118181336A comprises a variable pitch cylinder assembly, which is connected to an external joint robot through a rectangular variable pitch fixing plate on the top; a tail end plate is respectively provided at the front end and the middle of the right side of the variable pitch fixing plate, and a variable pitch cylinder that can be pushed forward and backward is provided between the two tail end plates; a linear guide rail in the front and rear directions is provided at the bottom of the variable pitch fixing plate, and four mounting plates arranged front and back that can slide back and forth are provided on the linear guide rail, and the variable pitch cylinder is connected to the four mounting plates through the variable pitch flange on the piston rod at its rear end, and the front and rear adjacent mounting plates are connected in pairs by three variable pitch linkage plates respectively; a lifting cylinder is respectively provided at the lower end of the mounting plate, and a clamping claw assembly for clamping the battery is respectively provided at the lower end of the lifting cylinder; the structure is simple, the flexibility is high and the adaptability is strong, and it can be directly connected with the existing joint robot quickly to improve the working efficiency of the mechanism.

[0004] The above-mentioned prior art has the following technical problems: when the existing clamping device is in use, the clamping block is controlled by the cylinder to move on the linear guide rail, but inevitably, the factory may have a power outage or the cylinder gas source may be suddenly cut off. The cylinder relies on air pressure to maintain the clamping state of the battery. If the gas is suddenly cut off, the suspended battery loses the clamping force and falls from a high altitude, causing battery damage and even fire in severe cases. At the same time, when clamping the battery, it is often only possible to clamp and limit the two sides of the battery. The overall clamping direction and limiting method are relatively limited, which makes its clamping stability poor.

[0005] Therefore, we propose a cell clamping mechanism and a clamping method for a liquid-cooled energy storage battery in order to solve the above-mentioned problems. Summary of the invention

[0006] The object of the present invention is to provide a cell clamping mechanism and a clamping method for a liquid-cooled energy storage battery, so as to solve the problem raised in the above background technology that the existing clamping devices on the market at present, when in use, control the clamping block to move on the linear guide rail through the cylinder, but inevitably, the factory may have a power outage or the cylinder gas source may be suddenly cut off. The cylinder relies on air pressure to maintain the clamping state of the battery. If the gas is suddenly cut off, the suspended battery loses the clamping force and falls from a high altitude, causing damage to the battery, and even fire in severe cases. At the same time, when clamping the battery, it is often only possible to clamp and limit the two sides of the battery, and the overall clamping orientation and limiting method are relatively limited, which leads to the problem that the clamping stability is poor.

[0007] To achieve the above object, the present invention provides the following technical solution: a cell clamping mechanism for a liquid-cooled energy storage battery, comprising a slide seat, the left and right ends of the slide seat are fixedly connected with positioning end covers by bolts, and a cylinder is installed in the middle of the upper end of the slide seat;

[0008] Also includes:

[0009] The telescopic end of the cylinder is fixedly connected with a linkage part, and the front and rear sides of the linkage part are fixedly connected with vertical guide columns, the left and right ends of the linkage part are inserted into the steering groove on the clamping claw seat, and the clamping claw seat is connected to each other through a clamping spring and a positioning end cover on the side of the slide seat, and a fixing plate is fixedly connected to the middle part of the lower end of the slide seat, and a multi-directional positioning component is fixedly connected to the lower end of the clamping claw seat, which is used to clamp the battery cell in multiple directions to improve the stability of the battery cell when being clamped.

[0010] Preferably, the left and right sides of the linkage member are beveled edges, and the left and right sides of the linkage member fit with the steering groove on the clamping claw seat, and the fitting surface between the steering groove and the linkage member is also set as a beveled edge.

[0011] By adopting the above technical solution, the movement of the linkage member can utilize the mutual extrusion with the oblique edge of the steering groove to make the clamping claw seat move on the slide seat.

[0012] Preferably, the clamping jaw seats are symmetrically arranged with respect to the longitudinal center axis of the fixing plate at the lower end of the slide seat, and the symmetrically distributed clamping jaw seats form an elastic telescopic structure through the clamping springs and the slide seat.

[0013] By adopting the above technical solution, the battery cell can be conveniently clamped by moving the clamping claw seat on the slide seat, and the clamping claw seat can be reset and rebounded after movement by setting the clamping spring.

[0014] Preferably, the multi-directional positioning component includes a first clamping plate, and the first clamping plate is fixed to the lower end of the clamping claw seat, a first-level limit block is installed in the middle of the first clamping plate, and the upper end of the first-level limit block is fixedly connected to a piston rod, the piston rod extends into the interior of the air storage chamber, and the air storage chamber is opened in the interior of the first clamping plate, the piston rod is connected to the interior of the air storage chamber through an auxiliary spring, a second-level limit block is installed on the first clamping plate, and the end of the second-level limit block in contact with the battery cell is fixedly connected to a rubber pad, and a vortex spring providing a reset force is installed on the outer side of the rotating shaft of the second-level limit block, the air storage chamber is connected to the interior of the guide tube and the clamping column, and the clamping column is fixed to the lower end of the fixed plate, a connecting rod is installed on the side of the clamping column, and the end of the connecting rod extending out of the clamping column is fixedly connected to the second clamping plate, and the end of the connecting rod located inside the clamping column is connected to the interior of the clamping column through an assist spring.

[0015] By adopting the above technical solution, the connection rod can be reset after moving on the clamping column by setting the auxiliary spring.

[0016] Preferably, the end of the piston rod on the primary limit block is slidably connected to the piston rod and the air storage chamber inside the primary limit block via a circumferentially fixed sealing ring.

[0017] By adopting the above technical solution, the sealing performance of the first-level limit block when it moves inside the air storage chamber can be ensured through the sealing ring on the end of the piston rod on the first-level limit block.

[0018] Preferably, a plurality of the secondary limit blocks are evenly distributed on the first clamping plate at equal intervals, and each of the secondary limit blocks forms a rotating structure with the first clamping plate via a rotating shaft in the middle.

[0019] By adopting the above technical solution, when the secondary limit block rotates downward around the rotating shaft on the first clamping plate, the clamping force on the battery cell can be provided by the restoring elastic force of the vortex spring outside the rotating shaft.

[0020] Preferably, the airflow inside the air storage chamber is connected to each other through the guide tube and the interior of the clamping column, and the interior of the clamping column is configured as a hollow structure.

[0021] By adopting the above technical solution, through the hollow structure inside the clamping column, the airflow inside can be easily allowed to enter the interior of the air storage chamber through the guide tube.

[0022] Preferably, the connecting rod and the second clamping plate are vertically distributed, and one end of the connecting rod away from the second clamping plate forms a seamless sliding connection mechanism with the interior of the clamping column through a circumferentially fixed sealing ring.

[0023] By adopting the above technical solution, when the connecting rod moves inside the clamping column, the second clamping plate to which it is fixed can move synchronously.

[0024] Another technical solution provided by the present invention is to provide a clamping method of a battery cell clamping mechanism of a liquid-cooled energy storage battery, comprising the following steps:

[0025] Step 1: When the battery needs to be clamped, the slide is controlled to move downward by the mechanical arm, and the linkage is controlled to move downward by the cylinder. After the linkage moves downward, the jaw seat can be squeezed and pushed by the bevel to move the jaw seat to the outside of the slide, and then the jaw seat is placed on both sides of the battery cell. After that, the cylinder controls the linkage to move upward, and the jaw seat is reset under the action of the clamping spring. The battery cell is clamped by the first clamping plate on the reset jaw seat. When there is a sudden power outage or gas failure, the linkage moves upward to reset, but the jaw seat is mainly clamped by the clamping spring. Therefore, when there is a gas or power failure, the jaw seat can still play a clamping role;

[0026] Step 2: When the first clamping plate moves to clamp the battery cell, the primary limit block on the first clamping plate fixes the battery cell. When the manipulator lifts the clamped battery cell, the battery cell has its own gravity, so that the primary limit block and the piston rod move downward. After the piston rod moves to the bottom of the air storage chamber, the air flow inside the clamping column can be absorbed through the guide tube. At this time, the connecting rod on the clamping column is reset under the action of the booster spring. The reset connecting rod drives the second clamping plate to move toward the center direction of the slide seat. The moved second clamping plate can also clamp and fix the front and rear sides of the battery cell to ensure the stability of the battery cell during transfer.

[0027] Step 3: After the first clamping plate moves relatively to fix the battery cell, the rubber pad at the end of the secondary limit block on the first clamping plate contacts the battery cell. After the battery cell is lifted, the first limit block moves downward due to gravity. The downward movement of the battery cell can make the mutually conflicting secondary limit blocks rotate downward around the shaft at a certain angle. After the secondary limit block rotates downward, the vortex spring on the shaft has a movement tendency to reset the secondary limit block upward. Therefore, the reset elastic force provided by the vortex spring can further increase the stability of the battery cell when it is fixed and clamped.

[0028] Compared with the prior art, the present invention has the following beneficial effects: the battery cell clamping mechanism and the clamping method of the liquid-cooled energy storage battery can maintain the clamping state by the clamping claws with springs without the need for air source pressure in the clamping state, which is both safe and energy-saving. At the same time, when the battery is clamped, it is convenient to position the battery in multiple directions, thereby ensuring the stability of the battery when it is clamped and transferred;

[0029] 1. A clamping claw seat is provided. The clamping claw seat can be squeezed and pushed by the bevel of the linkage member to move the clamping claw seat to the outside of the slide seat. When clamping the battery cell, the linkage member moves upward, and the clamping claw seat is reset under the action of the clamping spring. The battery cell is fixed by the reset clamping claw seat. Since the main clamping power of the clamping claw seat comes from the clamping spring, no air source pressure is required to maintain the clamping state in the clamping state, which is both safe and energy-saving.

[0030] 2. A first clamping plate and a second clamping plate are provided. When the clamping claw seat moves relatively, the primary limit block on the first clamping plate can be used to fix the battery cell. After the battery cell is lifted, the primary limit block and the piston rod move downward by their own gravity. At this time, the air storage chamber uses the guide tube to absorb the airflow inside the clamping column. The connecting rod and the second clamping plate are reset under the action of the booster spring. The reset second clamping plate can fix the front and rear sides of the battery cell, thereby realizing multi-directional clamping of the battery cell;

[0031] 3. A secondary limit block is provided. When the battery cell moves downward, it can resist the secondary limit block, so that the secondary limit block rotates downward around the rotating shaft. After the secondary limit block rotates downward, the vortex spring can be used to provide an upward return rotation movement trend, thereby the return elastic force provided by the vortex spring can be used to further improve the stability of the battery cell being clamped. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the front three-dimensional structure of the present invention;

[0033] Figure 2 It is a front cross-sectional structural schematic diagram of the present invention;

[0034] Figure 3 It is a schematic diagram of the structure of the flow guide pipe and the clamping column of the present invention;

[0035] Figure 4 It is a schematic diagram of the structure of the clamping jaw seat and the clamping spring of the present invention;

[0036] Figure 5 It is a schematic diagram of the exploded structure of the linkage member and the clamping jaw seat of the present invention;

[0037] Figure 6 It is a schematic diagram of the structure of the first clamping plate and the primary limit block of the present invention;

[0038] Figure 7 This is a schematic diagram of the structure of the secondary limit block and the rubber pad of the present invention;

[0039] Figure 8 It is a schematic diagram of the structure of the piston rod and the air storage chamber of the present invention;

[0040] Fig. 9 It is a schematic diagram of the structure of the clamping column and the connecting rod of the present invention.

[0041] In the figure: 1. sliding seat; 2. positioning end cover; 3. cylinder; 4. linkage; 5. vertical guide column; 6. clamping claw seat; 7. clamping spring; 8. fixing plate; 9. multi-directional positioning component; 901. first clamping plate; 902. primary limit block; 903. piston rod; 904. air storage chamber; 905. auxiliary spring; 906. secondary limit block; 907. rubber pad; 908. vortex spring; 909. guide tube; 9010. clamping column; 9011. connecting rod; 9012. second clamping plate; 9013. assist spring. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] Example 1: Please refer to Figure 1-Figure 9 When the existing clamping device is in use, the clamping block is controlled to move on the linear guide rail by the cylinder 3. However, it is inevitable that a power outage may occur in the factory or the air source of the cylinder 3 may be suddenly cut off. The cylinder 3 relies on air pressure to maintain the clamping state of the battery. If the air source is suddenly cut off, the suspended battery loses its clamping force and falls from a high altitude, causing damage to the battery and even fire in severe cases. In order to solve this technical problem, the present embodiment discloses the following technical content;

[0044] A cell clamping mechanism for a liquid-cooled energy storage battery comprises a slide 1, the left and right ends of the slide 1 are fixedly connected with a positioning end cap 2 by bolts, and a cylinder 3 is installed in the middle of the upper end of the slide 1; the telescopic end of the cylinder 3 is fixedly connected with a linkage 4, and the front and rear sides of the linkage 4 are fixedly connected with vertical guide columns 5, the left and right ends of the linkage 4 are inserted into the steering groove on the clamping claw seat 6, and the clamping claw seat 6 is mutually connected with the positioning end cap 2 on the side of the slide 1 through a clamping spring 7, and the middle of the lower end of the slide 1 is fixedly connected with a fixing plate 8, the left and right sides of the linkage 4 are beveled, and the left and right sides of the linkage 4 are mutually fitted with the steering groove on the clamping claw seat 6, and the fitting surface of the steering groove and the linkage 4 is also set as a bevel. The clamping claw seat 6 is symmetrically arranged about the longitudinal center axis of the fixing plate 8 at the lower end of the slide 1, and the symmetrically distributed clamping claw seat 6 forms an elastic telescopic structure through the clamping spring 7 and the slide 1.

[0045] When the battery needs to be clamped, the slide 1 is controlled to move downward by the mechanical arm, and the linkage 4 is controlled to move downward by the cylinder 3. After the linkage 4 moves downward, the beveled edge can be used to squeeze and push the clamping claw seat 6, so that the clamping claw seat 6 moves to the outside of the slide 1, and then the clamping claw seat 6 is placed on both sides of the battery cell. Thereafter, the cylinder 3 controls the linkage 4 to move upward, and the clamping claw seat 6 is reset under the action of the clamping spring 7, and the battery cell is clamped by the first clamping plate 901 on the clamping claw seat 6 after reset. When there is a sudden power outage or gas failure, the linkage 4 moves upward and resets, but the main clamping force of the clamping claw seat 6 comes from the clamping spring 7. Therefore, when there is a gas or power failure, the clamping claw seat 6 can still play a clamping role.

[0046] Embodiment 2: The technical content disclosed in this embodiment is a further improvement on the above embodiment 1. When clamping the battery, only the two sides of the battery can be clamped and limited. The overall clamping position and limiting method are relatively limited, which makes the clamping stability poor. In order to further solve this technical problem, this embodiment discloses the following technical content, such as Figure 2-Figure 9 As shown;

[0047] The lower end of the clamping claw seat 6 is fixedly connected to a multi-directional positioning component 9, which is used to perform multi-directional clamping on the battery cell to improve the stability of the battery cell when clamped. The multi-directional positioning component 9 includes a first clamping plate 901, and the first clamping plate 901 is fixed to the lower end of the clamping claw seat 6. A primary limit block 902 is installed in the middle of the first clamping plate 901, and a piston rod 903 is fixedly connected to the upper end of the primary limit block 902. The piston rod 903 extends into the interior of the air storage chamber 904, and the air storage chamber 904 is opened in the interior of the first clamping plate 901. The piston rod 903 is connected to the interior of the air storage chamber 904 through an auxiliary spring 905. Two springs are installed on the first clamping plate 901. The first-stage stopper 906 is provided, and the end of the second-stage stopper 906 in contact with the battery core is fixedly connected with a rubber pad 907, and a vortex spring 908 providing a restoring elastic force is installed on the outer side of the rotating shaft of the second-stage stopper 906, and the gas storage chamber 904 is interconnected with the inside of the clamping column 9010 through the guide tube 909, and the clamping column 9010 is fixed to the lower end of the fixed plate 8, and a connecting rod 9011 is installed on the side of the clamping column 9010, and the end of the connecting rod 9011 extending out of the clamping column 9010 is fixedly connected with the second clamping plate 9012, and the end of the connecting rod 9011 located inside the clamping column 9010 is connected to the inside of the clamping column 9010 through the booster spring 9013. The end of the piston rod 903 on the first-stage stopper 902 is slidably connected with the piston rod 903 and the gas storage chamber 904 inside the first-stage stopper 902 through a circumferentially fixed sealing ring. There are multiple secondary limit blocks 906 evenly distributed on the first clamping plate 901 at equal intervals, and each secondary limit block 906 forms a rotating structure with the first clamping plate 901 through a central rotating shaft. The airflow inside the air storage chamber 904 is connected to each other through the guide tube 909 and the inside of the clamping column 9010, and the inside of the clamping column 9010 is set as a hollow structure. The connecting rod 9011 and the second clamping plate 9012 are vertically distributed, and the end of the connecting rod 9011 away from the second clamping plate 9012 forms a seamless sliding connection mechanism with the inside of the clamping column 9010 through a circumferentially fixed sealing ring.

[0048] When the first clamping plate 901 moves to clamp the battery cell, the primary limit block 902 on the first clamping plate 901 fixes the battery cell. When the manipulator lifts the clamped battery cell, the battery cell has its own gravity, which causes the primary limit block 902 and the piston rod 903 to move downward. After the piston rod 903 moves to the bottom of the air storage chamber 904, the air flow inside the clamping column 9010 can be absorbed through the guide tube 909. At this time, the connecting rod 9011 on the clamping column 9010 is reset under the action of the assist spring 9013. The reset connecting rod 9011 drives the second clamping plate 9012 to move toward the center direction of the slide seat 1. The moved second clamping plate 9012 can be used to clamp the battery cell. The front and rear sides of the core are also clamped and fixed to ensure the stability of the battery cell during transfer. After the first clamping plate 901 moves relatively to fix the battery cell, the rubber pad 907 at the end of the secondary limit block 906 on the first clamping plate 901 contacts the battery cell. After the battery cell is lifted, the primary limit block 902 moves downward due to gravity. The downward movement of the battery cell can make the secondary limit blocks 906 that contact each other rotate downward around the shaft at a certain angle. After the secondary limit block 906 rotates downward, the vortex spring 908 on its shaft has a tendency to reset the secondary limit block 906 upward. Therefore, the reset elastic force provided by the vortex spring 908 can further increase the stability of the battery cell when it is fixed and clamped.

[0049] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0050] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cell clamping mechanism for a liquid-cooled energy storage battery, comprising a slide seat (1), the left and right ends of the slide seat (1) being fixedly connected to positioning end covers (2) by bolts, and a cylinder (3) being installed in the middle of the upper end of the slide seat (1); It is characterized in that Also includes: The telescopic end of the cylinder (3) is fixedly connected to a linkage member (4), and the front and rear sides of the linkage member (4) are fixedly connected to vertical guide columns (5), the left and right ends of the linkage member (4) are inserted into the steering grooves on the clamping claw seat (6), and the clamping claw seat (6) is connected to the positioning end cover (2) on the side of the slide seat (1) through a clamping spring (7), and the middle part of the lower end of the slide seat (1) is fixedly connected to a fixing plate (8), and the lower end of the fixing plate (8) is fixedly connected to a multi-directional positioning component (9), and the multi-directional positioning component (9) is used to clamp the battery cell in multiple directions, thereby improving the stability of the battery cell when being clamped; The multi-directional positioning component (9) comprises a first clamping plate (901), and the first clamping plate (901) is fixed to the lower end of the clamping claw seat (6); a primary limit block (902) is installed in the middle of the first clamping plate (901), and a piston rod (903) is fixedly connected to the upper end of the primary limit block (902); the piston rod (903) extends into the interior of the gas storage chamber (904), and the gas storage chamber (904) is opened in the interior of the first clamping plate (901); the piston rod (903) and the interior of the gas storage chamber (904) are connected to each other through an auxiliary spring (905); a secondary limit block (906) is installed on the first clamping plate (901), and the secondary limit block (906) is in contact with a portion of the battery cell. The second end of the second limit block (906) is fixedly connected to a rubber pad (907), a vortex spring (908) for providing a restoring elastic force is installed on the outer side of the rotating shaft of the second limit block (906), the air storage chamber (904) is connected to the inside of the clamping column (9010) through the guide tube (909), and the clamping column (9010) is fixed to the lower end of the fixed plate (8), a connecting rod (9011) is installed on the side of the clamping column (9010), and one end of the connecting rod (9011) extending out of the clamping column (9010) is fixedly connected to a second clamping plate (9012), and one end of the connecting rod (9011) located inside the clamping column (9010) is connected to the inside of the clamping column (9010) through the booster spring (9013).

2. The battery cell clamping mechanism for a liquid-cooled energy storage battery according to claim 1, characterized in that: The left and right sides of the linkage member (4) are inclined surfaces, and the left and right sides of the linkage member (4) fit with the steering groove on the clamping claw seat (6), and the fitting surface between the steering groove and the linkage member (4) is also set as an inclined surface.

3. The cell clamping mechanism and clamping method of a liquid-cooled energy storage battery according to claim 1, characterized in that: The clamping claw seats (6) are symmetrically arranged about the longitudinal center axis of the fixing plate (8) at the lower end of the slide seat (1), and the symmetrically distributed clamping claw seats (6) form an elastic telescopic structure through the clamping springs (7) and the slide seat (1).

4. The cell clamping mechanism for a liquid-cooled energy storage battery according to claim 1, characterized in that: The end of the piston rod (903) on the primary limit block (902) is slidably connected to the piston rod (903) and the air storage chamber (904) inside the primary limit block (902) via a circumferentially fixed sealing ring.

5. The battery cell clamping mechanism for a liquid-cooled energy storage battery according to claim 1, characterized in that: A plurality of the secondary limiting blocks (906) are evenly distributed at equal intervals on the first clamping plate (901), and each secondary limiting block (906) forms a rotating structure with the first clamping plate (901) via a rotating shaft in the middle.

6. The battery cell clamping mechanism for a liquid-cooled energy storage battery according to claim 1, characterized in that: The air flow inside the air storage chamber (904) is connected to each other through the flow guide tube (909) and the interior of the clamping column (9010), and the interior of the clamping column (9010) is configured as a hollow structure.

7. The battery cell clamping mechanism for a liquid-cooled energy storage battery according to claim 1, characterized in that: The connecting rod (9011) and the second clamping plate (9012) are vertically distributed, and one end of the connecting rod (9011) away from the second clamping plate (9012) forms a seamless sliding connection mechanism with the inside of the clamping column (9010) through a circumferentially fixed sealing ring.

8. The clamping method of the battery cell clamping mechanism of the liquid-cooled energy storage battery according to claim 7, characterized in that: The following steps are involved: S1: When it is necessary to clamp the battery, the slide (1) is controlled to move downward by the mechanical arm, and the linkage (4) is controlled to move downward by the cylinder (3). After the linkage (4) moves downward, the inclined surface can be used to squeeze and push the clamping claw seat (6) so that the clamping claw seat (6) moves to the outside of the slide (1). Then, the clamping claw seat (6) is placed on both sides of the battery cell. Thereafter, the cylinder (3) controls the linkage (4) to move upward, and the clamping claw seat (6) is reset under the action of the clamping spring (7). The battery cell is clamped by the first clamping plate (901) on the clamping claw seat (6) after reset. When there is a sudden power outage or gas failure, the linkage (4) moves upward to reset. However, since the main clamping force of the clamping claw seat (6) comes from the clamping spring (7), the clamping claw seat (6) can still play a clamping role when there is a gas or power failure. S2: When the first clamping plate (901) moves to clamp the battery cell, the primary limit block (902) on the first clamping plate (901) fixes the battery cell. When the manipulator lifts the clamped battery cell, the battery cell has its own gravity, so that the primary limit block (902) and the piston rod (903) move downward. After the piston rod (903) moves to the bottom of the air storage chamber (904), the air flow inside the clamping column (9010) can be absorbed through the guide tube (909). At this time, the connecting rod (9011) on the clamping column (9010) is reset under the action of the auxiliary spring (9013). The reset connecting rod (9011) drives the second clamping plate (9012) to move toward the center direction of the slide seat (1). The moved second clamping plate (9012) can also clamp and fix the front and rear sides of the battery cell, thereby ensuring the stability of the battery cell during transfer. S3: After the first clamping plate (901) is relatively moved to fix the battery cell, the rubber pad (907) at the end of the secondary limit block (906) on the first clamping plate (901) contacts the battery cell. After the battery cell is lifted, the primary limit block (902) moves downward due to gravity. The downward movement of the battery cell can cause the mutually contacting secondary limit blocks (906) to rotate downward around the rotation axis by a certain angle. After the secondary limit block (906) rotates downward, the vortex spring (908) on the rotation axis has a movement tendency to reset the secondary limit block (906) upward. Therefore, the reset elastic force provided by the vortex spring (908) can further increase the stability of the battery cell when it is fixed and clamped.

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