Battery cell underwater cutting mechanism

Abstract

The utility model relates to the technical field of battery cell cutting, in particular to a battery cell underwater cutting mechanism which comprises a cylinder body, fixing assemblies and a cutting assembly, a cavity with an opening in the top end is formed in the cylinder body, a discharge medium is contained in the cavity, and at least one fixing assembly is connected with the inner side wall of the cylinder body. A plurality of clamping spaces used for fixing the battery cells are arranged in the fixing assembly in the axis direction of the barrel body, the fixing assembly is located below the liquid level of the discharge medium, the cutting assembly comprises a telescopic part and a cutter connected with the movable end of the telescopic part, and when the battery cells are fixed in the clamping spaces in a one-to-one correspondence mode, the cutter can cut the battery cells. And the cutter is driven by the telescopic part to move into the cavity, so that the cutter cuts the upper cover of each battery cell. The problem that in the prior art, fire is prone to occurring when a battery cell is cut and discharged is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery core cutting, in particular to an underwater battery core cutting mechanism. Background Art

[0002] The remaining capacity of used power batteries cannot be safely and effectively handled during the recycling process, which has a significant adverse impact on subsequent resource utilization. Traditional discharge uses chemical discharge and resistance discharge. The former discharges more fully, but the discharge time is long; the latter can meet the needs of rapid discharge to a certain extent, but the voltage is easy to rebound and is not sufficient.

[0003] During the research, it was found that the cutting discharge effects of four discharge media (sodium chloride, ferrous sulfate, sodium citrate, zinc acetate) at 10% and 20% mass concentrations were studied respectively. Through the analysis of the battery voltage change law, it was found that compared with chemical discharge, cutting discharge can shorten the discharge time from the original more than 7 days to less than 2 days, which can effectively shorten the discharge time.

[0004] For example, in the patent document with the existing patent application number 201520862860.6, a lead ingot cutting device for lead-acid battery processing is disclosed, and specifically discloses a bracket, an operating table, a cutting mechanism and a cooling mechanism. The cutting mechanism is composed of a hydraulic cylinder, a connecting block and a blade. The hydraulic cylinder is vertically fixed on the top of the bracket, and the guide rod of the hydraulic cylinder passes through the bracket and is connected to the connecting block. The blade is fixed to the lower end of the connecting block by screws. The cooling mechanism is composed of a water tank with a water outlet at the bottom and a spray gun arranged outside the water tank. The water tank is arranged on the operating table below the blade, and the head of the spray gun is aimed at the blade. The battery cell is cut by the above scheme. Since the head of the spray gun is aimed at the blade to cool the blade, however, after the battery cell is cut, the temperature of the lithium will rise rapidly when it meets water, which is prone to fire, and there is a certain safety risk. Utility Model Content

[0005] The purpose of the utility model is to overcome the above technical deficiencies and provide a battery cell underwater cutting mechanism to solve the problem in the prior art that the battery cell is prone to catching fire during cutting and discharging.

[0006] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides an underwater cutting mechanism for battery cells, comprising a cylinder, a fixing assembly and a cutting assembly, wherein a cavity with a top opening is arranged in the cylinder, a discharge medium is contained in the cavity, at least one of the fixing assemblies is connected to the inner side wall of the cylinder, a plurality of clamping spaces for fixing battery cells are arranged in the fixing assembly along the axial direction of the cylinder, and the fixing assembly is located below the liquid surface of the discharge medium, the cutting assembly comprises a telescopic part and a cutter connected to the movable end of the telescopic part, and when each battery cell is fixed in each clamping space one by one, the cutter is driven by the telescopic part to move into the cavity, so that the cutter cuts the upper cover of each battery cell.

[0008] In some embodiments, the fixing assembly includes a mounting plate connected to the inner wall of the cylinder, a plurality of vertical plates fixed on the mounting plate at intervals and in parallel, a guide rod, a threaded screw and a pressure plate fixedly passed through one side of the plurality of vertical plates, the threaded screw is passed through the other side of the plurality of vertical plates, and one end of the threaded screw is rotatably connected to one of the vertical plates on one side of the mounting plate, a pressure plate is provided between each adjacent mounting plate, and one side of the pressure plate is slidably connected to the guide rod, and the other side of the pressure plate is threadably rotatably connected to the threaded screw, and the clamping space is formed between the pressure plate and the vertical plate.

[0009] In some embodiments, a stirring component is also included, which is connected to the cylinder and located below the fixed component. The stirring component includes a reduction motor, a rotating shaft and a stirring blade. The reduction motor is fixed to the bottom end of the cylinder, the rotating shaft is disposed in the cavity and connected to the output end of the reduction motor, and the stirring blade is disposed in the cavity and connected to the rotating shaft.

[0010] In some embodiments, at least one T-shaped slide groove is provided in the mounting plate, and the inner side wall of the cylinder is provided with a T-shaped slide rail matching with the T-shaped slide groove.

[0011] In some embodiments, a limit block is provided on the inner wall of the cylinder below the T-shaped slide rail, and the mounting plate abuts against the limit block.

[0012] In some embodiments, the bottom and top of the cylinder are respectively provided with a liquid inlet end and a liquid discharge end connected to the cavity.

[0013] In some embodiments, elastic buffer gaskets are provided on the planes where the pressing plate and the vertical plate are in contact with the battery core.

[0014] In some embodiments, the fixing assembly further includes a rotating hand wheel, and the rotating hand wheel is fixedly connected to the other end of the threaded screw.

[0015] In some embodiments, the cylinder is nested with a glass observation window along the depth direction.

[0016] In some embodiments, the cutting assembly further includes a cover plate, the telescopic portion is fixed on the cover plate, and the cover plate can close the opening at the top of the cylinder.

[0017] Compared with the prior art, the utility model provides an underwater cell cutting mechanism, which is connected to the inner wall of the cylinder through at least one fixing component, and a plurality of clamping spaces for fixing the cell are provided in the fixing component along the axial direction of the cylinder, and the fixing component is located below the liquid surface of the discharge medium. When each cell is fixed in each clamping space one by one, the cutter is driven to move into the cavity by the telescopic part, and the cutter can cut the upper cover of each cell, which can effectively realize the cutting of the cell in the discharge medium, shortening the discharge time of the cell, and when the cell is cut and discharged in the discharge medium, it can avoid the fire of the cell during cutting, and at the same time improve the cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a battery cell underwater cutting mechanism provided by the utility model;

[0019] Figure 2 It is a cross-sectional view of a battery cell underwater cutting mechanism of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the fixing assembly of the utility model;

[0021] Figure 4 It is a structural schematic diagram of a cutter of the utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] See also Figures 1 to 4 The utility model provides an underwater cell cutting mechanism. The cutting mechanism can fix multiple cells A, cut the cells A in a discharge medium, cut off the upper cover of the cells A, so that the cells A discharge in the discharge medium, improve the discharge efficiency, and avoid fire when the cells A are cut and discharged.

[0024] In this specific embodiment, a battery cell underwater cutting mechanism includes a barrel 1, a fixing component 2 and a cutting component 3. The barrel 1 is provided with a cavity 10 with a top opening, and the cavity 10 contains a discharge medium. At least one of the fixing components 2 is connected to the inner wall of the barrel 1. The fixing component 2 is provided with a plurality of clamping spaces 20 for fixing the battery cells along the axial direction of the barrel 1, and the fixing component 2 is located below the liquid surface of the discharge medium. The cutting component 3 includes a telescopic portion 31, and a cutter 32 connected to the movable end of the telescopic portion 31. When each battery cell is fixed in each of the clamping spaces 20 one by one, the cutter 32 is driven by the telescopic portion 31 to move into the cavity 10 so that the cutter 32 can cut the upper cover of each battery cell.

[0025] In actual use, after each battery cell is fixed one by one in each of the clamping spaces 20, the fixing assembly 2 is installed in the cylinder 1, and the cutter 32 is driven to move into the cavity 10 by the telescopic portion 31, so that the cutter 32 can cut the upper cover of each battery cell.

[0026] In this specific embodiment, the discharge medium is one of sodium chloride, ferrous sulfate, sodium citrate or zinc acetate, which can prevent the battery cell from catching fire after being cut.

[0027] It should be noted that the fixing assembly 2 is not limited to a specific structure, as long as it can fix multiple battery cells, and no other limitation is made here.

[0028] In this specific embodiment, the fixing assembly 2 includes a mounting plate 21 connected to the inner wall of the cylinder 1, a plurality of vertical plates 22 fixed on the mounting plate 21 at intervals and in parallel, a guide rod 23 fixedly penetrated through one side of the plurality of vertical plates 22, a threaded screw 24 and a pressure plate 25, the threaded screw 24 is penetrated through the other side of the plurality of vertical plates 22, and one end of the threaded screw 24 is rotatably connected to one of the vertical plates 22 on one side of the mounting plate 21, a pressure plate 25 is provided between each adjacent two mounting plates 21, and one side of the pressure plate 25 is slidably connected to the guide rod 23, and the other side of the pressure plate 25 is threadedly rotatably connected to the threaded screw 24, and the clamping space 20 is formed between the pressure plate 25 and the vertical plate 22.

[0029] Specifically, one end of the threaded screw 24 is rotatably connected to a vertical plate 22 on the leftmost side of the mounting plate 21 , and through holes for the threaded screw 24 to pass through are formed on the remaining vertical plates 22 .

[0030] In this specific embodiment, the fixing assembly 2 also includes a rotating handwheel 26, and the rotating handwheel 26 is fixedly connected to the other end of the threaded screw 24. By driving the threaded screw 24 to rotate, the pressure plate 25 is driven to move relative to the vertical plate 22 to adjust the distance between the pressure plate 25 and the vertical plate 22. This allows battery cells of different models and sizes to be fixed in the clamping space 20, and has a wider range of applications.

[0031] On the basis of the above scheme, it also includes a stirring component 4, which is connected to the cylinder 1 and is located below the fixed component 2. The stirring component 4 includes a reduction motor 41, a rotating shaft 42 and a stirring blade 43. The reduction motor 41 is fixed to the bottom end of the cylinder 1, the rotating shaft 42 is arranged in the cavity 10 and connected to the output end of the reduction motor 41, and the stirring blade 43 is arranged in the cavity 10 and connected to the rotating shaft 42.

[0032] It should be noted that since a large amount of heat is generated when the battery core is cut, the reduction motor 41 drives the stirring blade 43 to stir the discharge medium in the cavity 10 to accelerate the heat dissipation.

[0033] On the basis of the above scheme, the bottom and top of the cylinder 1 are respectively provided with a liquid inlet end 13 and a liquid discharge end 14 connected to the cavity 10. Specifically, the liquid inlet end 13 and the liquid discharge end 14 can be connected to the liquid storage tank through a liquid pump to form a circulation pipeline, which has a better heat dissipation effect.

[0034] It should be noted that each battery cell can be first fixed in the corresponding clamping space 20, and then the fixing component 2 can be installed in the cavity 10. Specifically, at least one T-shaped groove 210 is provided in the mounting plate 21, and the inner wall of the cylinder 1 is provided with a T-shaped slide rail 11 matching the T-shaped groove 210.

[0035] In this specific embodiment, the number of T-shaped slots 210 in the mounting plate 21 is two, and one side wall of the cylinder body 1 is provided with two T-shaped slide rails 11 matched with the two T-shaped slots 210 .

[0036] Furthermore, a limit block 12 is provided on the inner wall of the cylinder 1 below the T-shaped slide rail 11, and the mounting plate 21 abuts against the limit block 12. That is, when the mounting plate 21 slides along the T-shaped slide rail 11 until it abuts against the limit block 12, further sliding of the mounting plate 21 can be restricted.

[0037] Based on the above solution, the planes where the pressing plate 25 and the vertical plate 22 are in contact with the battery core are provided with elastic buffer gaskets. Specifically, the elastic buffer gaskets are elastic rubber gaskets, which can ensure that the battery core is fixed more firmly.

[0038] Based on the above solution, the cylinder 1 is nested with a glass observation window 15 along the depth direction. In addition, the cutting assembly 3 also includes a cover plate 33, the telescopic part 31 is fixed on the cover plate 33, and the cover plate 33 can close the opening at the top of the cylinder 1.

[0039] In this specific embodiment, the telescopic part 31 is an electric push rod. Of course, in other embodiments, the telescopic part 31 can also be a pneumatic cylinder or a hydraulic cylinder.

[0040] In this specific embodiment, the upper part of the cylinder 1 is in the shape of a rectangular parallelepiped, and the lower part of the cylinder 1 is in the shape of a cone. The upper part of the cylinder 1 includes four side surfaces, and a fixing component 2 can be installed on each side surface, and each fixing component 2 can fix ten battery cells; the cutter 32 includes a square plate, and four blades arranged on the four sides of the square plate, the square plate is connected to the movable end of the telescopic part 31, and a plurality of water leakage holes are provided on the square plate.

[0041] The beneficial effects are:

[0042] Compared with the prior art, the utility model provides an underwater cell cutting mechanism, which is connected to the inner wall of the cylinder through at least one fixing component, and a plurality of clamping spaces for fixing the cell are provided in the fixing component along the axial direction of the cylinder, and the fixing component is located below the liquid surface of the discharge medium. When each cell is fixed in each clamping space one by one, the cutter is driven to move into the cavity by the telescopic part, and the cutter can cut the upper cover of each cell, which can effectively realize the cutting of the cell in the discharge medium, shortening the discharge time of the cell, and when the cell is cut and discharged in the discharge medium, it can avoid the fire of the cell during cutting, and at the same time improve the cutting efficiency.

[0043] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A battery cell underwater cutting mechanism, comprising a cylinder, a fixing assembly and a cutting assembly, characterized in that: A cavity with an opening at the top is provided in the cylinder, and a discharge medium is contained in the cavity. At least one of the fixing components is connected to the inner side wall of the cylinder. A plurality of clamping spaces for fixing the battery cells are provided in the fixing component along the axial direction of the cylinder, and the fixing component is located below the liquid surface of the discharge medium. The cutting component includes a telescopic portion and a cutter connected to the movable end of the telescopic portion. When the battery cells are fixed in the clamping spaces one by one, the telescopic portion drives the cutter to move into the cavity so that the cutter can cut the upper cover of each battery cell.

2. The battery cell underwater cutting mechanism according to claim 1, characterized in that: The fixing assembly includes a mounting plate connected to the inner side wall of the cylinder, a plurality of vertical plates fixed on the mounting plate at intervals and in parallel, a guide rod, a threaded screw and a pressure plate fixedly penetrated through one side of the plurality of vertical plates, the threaded screw is penetrated through the other side of the plurality of vertical plates, and one end of the threaded screw is rotatably connected to a vertical plate on one side of the mounting plate, a pressure plate is provided between each adjacent two mounting plates, and one side of the pressure plate is slidably connected to the guide rod, and the other side of the pressure plate is threadably rotatably connected to the threaded screw, and the clamping space is formed between the pressure plate and the vertical plate.

3. The battery cell underwater cutting mechanism according to claim 1, characterized in that: It also includes a stirring component, which is connected to the cylinder and is located below the fixed component. The stirring component includes a reduction motor, a rotating shaft and a stirring blade. The reduction motor is fixed to the bottom end of the cylinder, the rotating shaft is arranged in the cavity and connected to the output end of the reduction motor, and the stirring blade is arranged in the cavity and connected to the rotating shaft.

4. The battery cell underwater cutting mechanism according to claim 2, characterized in that: At least one T-shaped slide groove is arranged in the mounting plate, and the inner side wall of the cylinder is provided with a T-shaped slide rail matched with the T-shaped slide groove.

5. The battery cell underwater cutting mechanism according to claim 4, characterized in that: A limit block is provided on the inner wall of the cylinder below the T-shaped slide rail, and the mounting plate abuts against the limit block.

6. The battery cell underwater cutting mechanism according to claim 1, characterized in that: The bottom and top of the cylinder are respectively provided with a liquid inlet end and a liquid discharge end communicated with the cavity.

7. The battery cell underwater cutting mechanism according to claim 2, characterized in that: Elastic buffer gaskets are provided on the planes where the pressing plate and the vertical plate are in contact with the battery core.

8. The battery cell underwater cutting mechanism according to claim 2, characterized in that: The fixing assembly also includes a rotating hand wheel, and the rotating hand wheel is fixedly connected to the other end of the threaded screw.

9. The battery cell underwater cutting mechanism according to claim 1, characterized in that: The cylinder is nested with a glass observation window along the depth direction.

10. The battery cell underwater cutting mechanism according to claim 1, characterized in that: The cutting assembly also includes a cover plate, the telescopic part is fixed on the cover plate, and the cover plate can close the opening at the top of the cylinder.

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