Low-loss disassembling device for retired power battery module

Abstract

The utility model discloses a low-loss disassembling device for a retired power battery module, and relates to the field of power battery recovery. Comprising an upper workbench and a lower workbench, the lower workbench is provided with a clamping assembly used for clamping a battery module, the upper workbench is provided with a disassembling assembly, and when the clamping assembly clamps the battery module, the disassembling assembly abuts against the battery module; the disassembling assembly comprises a lifting part, an extrusion part and a spraying part, the extrusion part is arranged on the upper workbench, a mounting cavity is formed in the upper workbench, and the lifting part is arranged in the mounting cavity and used for driving the extrusion part to move towards the lower workbench; and the spraying part is arranged in the extrusion part and is used for spraying a degumming agent to the extrusion part. The device has the advantages that the phenomenon of liquid leakage basically does not occur in the separation process of the battery cell, so that the disassembly process is safer.

Description

Technical Field

[0001] This utility model relates to the field of power battery recycling, and in particular to a low-damage dismantling device for retired power battery modules. Background Technology

[0002] As environmental issues receive increasing attention from more countries, new energy vehicles are being developed and promoted in more nations. Simultaneously, with the rapid development of new energy electric vehicles, the amount of discarded power batteries is increasing daily, making the recycling of used power batteries a crucial factor influencing industrial development. A power battery pack typically consists of multiple battery modules, each containing multiple battery cells. These cells are connected in series and parallel, and then secured within the casing by injecting sealant. The sealant acts as both an adhesive and a buffer for the cells. Related technologies provide a power battery dismantling and recycling device, the main purpose of which is to remove the battery cells for reuse. However, due to the tight fixation between the sealant and the casing, forceful dismantling is often used during the dismantling process. While this allows for the removal and recycling of the cells, it can easily damage them, leading to leakage and reducing dismantling safety. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a low-damage dismantling device for retired power battery modules.

[0004] This utility model is achieved by the following technical solution: a low-damage dismantling device for retired power battery modules, including an upper worktable and a lower worktable. The lower worktable is provided with a clamping component for clamping the battery module, and the upper worktable is provided with a dismantling component. When the clamping component clamps the battery module, the dismantling component abuts against the battery module.

[0005] The disassembly assembly includes a lifting section, a squeezing section, and a spraying section. The squeezing section is located on the upper worktable, and the upper worktable has an installation cavity. The lifting section is located in the installation cavity and is used to drive the squeezing section to move to the lower worktable. The spraying section is located in the squeezing section and is used to spray adhesive remover onto the squeezing section.

[0006] The lifting unit includes an oil tank, which is fixed in the mounting cavity. An extension hole is provided on the end face of the upper worktable, and a telescopic hole is provided in the oil tank that communicates with the extension hole.

[0007] A piston is provided inside the oil tank, and the piston reciprocates within the oil tank. The extrusion part is fixed on the end face of the piston facing the extension hole. The extrusion part includes an extrusion blade, the end of which extends out of the extension hole. The extrusion blade is hollow to form a receiving cavity. The spraying part is located inside the receiving cavity and sprays a degumming agent onto the surface of the extrusion blade.

[0008] The oil tank has an upper oil inlet and a lower oil inlet on its side wall. The installation cavity is equipped with an oil storage tank, which supplies oil to the oil tank through the upper oil inlet and the lower oil inlet.

[0009] The piston divides the oil chamber into an upper chamber and a lower chamber. The upper chamber is connected to the upper oil inlet, and the lower chamber is connected to the lower oil inlet. A sealing element is provided on the side of the telescopic hole that contacts the extrusion blade.

[0010] The side wall of the receiving cavity is provided with a relief countersink, and the spraying part extends out of the extrusion blade or retracts the extrusion blade from the relief countersink.

[0011] The spraying unit includes a support column, which is inserted into the recessed hole with one end inserted into the receiving cavity and the other end extending out of the receiving cavity. One end of the support column is provided with a limiting plate, and the other end is provided with a sealing plate. The sealing plate is adapted to the recessed hole. A through hole is provided on the limiting plate. A liquid inlet is provided on the side wall of the receiving cavity. The liquid inlet is connected to the adhesive remover storage tank through a hose. The adhesive remover in the adhesive remover storage tank is pumped into the receiving cavity through the hose.

[0012] The upper worktable is driven by a linear drive device to move towards the lower worktable.

[0013] The clamping assembly includes a first clamping plate and a second clamping plate. A sliding groove is provided on the lower worktable. The ends of the first clamping plate and the second clamping plate are inserted into the sliding groove and slide within the sliding groove. An elastic element is provided on the end face of the first clamping plate and the second clamping plate that contacts the battery module.

[0014] The first clamping plate and the second clamping plate are provided with sliders at their ends. The sliders are inserted into the slide groove. The side wall of the slider is provided with a locking piece. The slider is provided with an adjusting bolt. Rotating the adjusting bolt pushes the locking piece against the side wall of the slide groove.

[0015] Compared to existing technologies, this invention sprays a desiccant onto the surface of the extrusion blade during the cutting process. As the extrusion blade moves downward, the desiccant fully contacts the battery module, causing the sealant to fail and separating the bonded battery cells from the battery module for easy recycling. Furthermore, because chemical agents are used to separate the battery cells from the sealant, the surface of the battery cells is not damaged, meaning that leakage is virtually nonexistent during the separation process, making the disassembly process safer. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the internal structure of the disassembly device in this utility model;

[0017] Figure 2 yes Figure 1 Enlarged schematic diagram of a local part of the structure;

[0018] Figure 3 This is a schematic diagram of the disassembly device;

[0019] In the diagram: 1. Upper worktable; 11. Mounting cavity; 2. Lower worktable; 21. Slide groove; 3. Clamping assembly; 31. First clamping plate; 32. Slider; 33. Adjusting bolt; 34. Locking plate; 4. Disassembly assembly; 41. Lifting part; 411. Oil tank; 412. Piston; 413. Upper oil inlet; 414. Lower oil inlet; 42. Extrusion part; 421. Extrusion blade; 422. Receiving cavity; 423. Relief countersunk hole; 43. Spraying part; 431. Support; 432. Sealing plate; 44. Seal; 5. Linear drive device. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0021] Reference Figure 1-3 A low-damage dismantling device for retired power battery modules includes an upper worktable 1 and a lower worktable 2. The lower worktable 2 is equipped with a clamping assembly 3 for clamping the battery module, and the upper worktable 1 is equipped with a dismantling assembly 4. When the clamping assembly 3 clamps the battery module, the dismantling assembly 4 abuts against the battery module. In this embodiment, the dismantling assembly 4 includes a lifting part 41, a squeezing part 42, and a spraying part. The squeezing part is located on the upper worktable 1, and the upper worktable 1 has a mounting cavity 11. The lifting part 41 is located in the mounting cavity 11 to drive the squeezing part 42 to move to the lower worktable 2, and the spraying part is located in the squeezing part 42 to spray a desiccant onto the squeezing part 42. Thus, during the entire process of using the device, while separating the battery cells, the adhesive remover is sprayed onto the surface of the extrusion section 42. As the extrusion section 42 moves downward, the adhesive remover comes into full contact with the battery module, causing the sealant to fail. This separates the battery cells that are bonded together in the battery module, making them easy to recycle. At the same time, because chemical agents are used to separate the battery cells from the sealant, the surface of the battery cells will not be damaged. In other words, there is basically no leakage during the separation process, making the disassembly process safer.

[0022] In this embodiment, the lifting unit 41 includes an oil tank 411, which is fixed inside the mounting cavity 11. An extension hole is formed on the end face of the upper worktable 1, and a telescopic hole is formed inside the oil tank 411 communicating with the extension hole. A piston 412 is provided inside the oil tank 411, and the piston 412 reciprocates within the oil tank 411. A pressing unit 42 is fixed on the end face of the piston 412 facing the extension hole. The pressing unit 42 includes a pressing blade 421, the end of which extends out of the extension hole. The pressing blade 421 is hollow, forming a receiving cavity 422. A spraying unit is located inside the receiving cavity 422 and sprays a remover onto the surface of the pressing blade 421. In actual use, the hydraulic pressure within the oil tank 411 pushes the pressing blade 421 downward to press the battery cells bonded together on both sides. This achieves the purpose of separating the battery cells. During the pressing process, the surface of the pressing blade 421 actually contains a remover, which causes the sealant to fail during the pressing process, making battery cell separation easier. Because chemical agents are used to separate the battery cell from the sealant, the surface of the battery cell will not be damaged. This means that there will be virtually no leakage during the separation process, making the disassembly process safer.

[0023] To accommodate power battery modules of different sizes and models, the upper worktable 1 is driven by a linear drive device 5 to move towards the lower worktable 2. In actual use, the position of the power battery module can be adjusted according to specific requirements to ensure the gap between the cells is aligned with the extrusion blade 421. Then, the linear drive device 5, such as a lead screw or hydraulic push rod, can push the extrusion blade 421 to contact the gap between the cells. If misalignment occurs, the linear drive device 5 can be reset for readjustment. This allows the device to adapt to different models of power battery modules, broadening its application range.

[0024] The clamping assembly 3 in this embodiment includes a first clamping plate 31 and a second clamping plate. A sliding groove 21 is formed on the lower worktable 2. The ends of the first clamping plate 31 and the second clamping plate are inserted into the sliding groove 21 and slide within it. The end faces of the first clamping plate 31 and the second clamping plate that contact the battery module are provided with elastic elements, such as silicone pads or rubber pads, to allow sufficient space for separation of adjacent battery cells when the extrusion blade is applied. The ends of the first clamping plate 31 and the second clamping plate are provided with sliders 32, which are inserted into the sliding groove 21. The side wall of the slider 32 is provided with a locking piece 34, and the slider 32 is provided with an adjusting bolt 33. Rotating the adjusting bolt 33 pushes the locking piece 34 to abut against the side wall of the sliding groove 21. Before the separation of the battery cells begins, the first clamping plate 31 and the second clamping plate can be used to clamp the power battery module, making the position of the power module adjustable. At the same time, during the movement, the first clamping plate 31 and the second clamping plate are always in a clamping state on the power battery module, which can play a certain positioning role. After the position is adjusted, tighten the adjusting bolt 33, which will push the locking piece 34 to open and contact the side wall of the slide groove 21, thereby fixing the position of the power battery module and facilitating the separation of the cells inside the power battery module.

[0025] In this embodiment, an upper oil inlet 413 and a lower oil inlet 414 are provided on the side wall of the oil tank 411. An oil storage tank is provided inside the mounting cavity 11, and the oil storage tank supplies oil to the oil tank 411 through the upper oil inlet 413 and the lower oil inlet 414. The piston 412 divides the oil tank 411 into an upper chamber and a lower chamber. The upper chamber is connected to the upper oil inlet 413, and the lower chamber is connected to the lower oil inlet 414. A sealing element 44 is provided on the side of the telescopic hole that contacts the extrusion knife 421. When oil is introduced through the oil inlet, the upper...

[0026] A recessed countersunk hole 423 is provided on the side wall of the receiving cavity 422. The spraying part extends the extrusion blade 421 or retracts the extrusion blade 421 from the recessed countersunk hole 423. The spraying part includes a support column, which is inserted into the recessed countersunk hole 423 with one end inserted into the receiving cavity 422 and the other end extending out of the receiving cavity 422. A limiting plate is provided at one end of the support column, and a sealing plate 432 is provided at the other end. The sealing plate 432 is adapted to the recessed countersunk hole 423. A through hole is provided on the limiting plate. A liquid inlet is provided on the side wall of the receiving cavity 422. The liquid inlet is connected to the adhesive remover storage tank through a hose. The adhesive remover in the adhesive remover storage tank is pumped into the receiving cavity 422 through the hose. When the extrusion blade 421 begins to separate the battery cell, its advance causes the sealing plate 432 to be pressed against both sides of the cell. Initially, the high pressure inside the receiving cavity 422 pushes the sealing plate 432 open, exposing the gap in the clearance countersunk hole 423. This allows the adhesive remover to be evenly sprayed onto the extrusion blade 421. As the extrusion blade 421 moves further, the sealing plate 432 is pressed back into the clearance countersunk hole 423, thus sealing it. This reduces the amount of adhesive remover used, resulting in greater economy.

[0027] Compared to existing technologies, this invention utilizes hydraulic pressure within the oil reservoir 411 to push the extrusion blade 421 downwards, extruding the bonded battery cells to both sides. This achieves the separation of the battery cells. During the extrusion process, a desiccant is present on the surface of the extrusion blade 421, causing the sealant to fail and facilitating cell separation. Because chemical agents are used to separate the battery cells from the sealant, the battery cell surface is not damaged, meaning there is virtually no leakage during separation, making the disassembly process safer.

[0028] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A low-damage dismantling device for retired power battery modules, comprising an upper worktable and a lower worktable, characterized in that: The lower worktable is provided with a clamping component for clamping the battery module, and the upper worktable is provided with a disassembly component. When the clamping component clamps the battery module, the disassembly component abuts against the battery module. The disassembly assembly includes a lifting section, a squeezing section, and a spraying section. The squeezing section is located on the upper worktable, and the upper worktable has an installation cavity. The lifting section is located in the installation cavity and is used to drive the squeezing section to move to the lower worktable. The spraying section is located in the squeezing section and is used to spray adhesive remover onto the squeezing section.

2. The low-damage dismantling device for retired power battery modules according to claim 1, characterized in that: The lifting unit includes an oil tank, which is fixed in the mounting cavity. An extension hole is provided on the end face of the upper worktable, and a telescopic hole is provided in the oil tank that communicates with the extension hole. A piston is provided inside the oil tank, and the piston reciprocates within the oil tank. The extrusion part is fixed on the end face of the piston facing the extension hole. The extrusion part includes an extrusion blade, the end of which extends out of the extension hole. The extrusion blade is hollow to form a receiving cavity. The spraying part is located inside the receiving cavity and sprays a degumming agent onto the surface of the extrusion blade.

3. The low-damage dismantling device for retired power battery modules according to claim 2, characterized in that: The oil tank has an upper oil inlet and a lower oil inlet on its side wall. The installation cavity is equipped with an oil storage tank, which supplies oil to the oil tank through the upper oil inlet and the lower oil inlet. The piston divides the oil chamber into an upper chamber and a lower chamber. The upper chamber is connected to the upper oil inlet, and the lower chamber is connected to the lower oil inlet. A sealing element is provided on the side of the telescopic hole that contacts the extrusion blade.

4. The low-damage dismantling device for retired power battery modules according to claim 2, characterized in that: The side wall of the receiving cavity is provided with a relief countersink, and the spraying part extends out of the extrusion blade or retracts the extrusion blade from the relief countersink.

5. The low-damage dismantling device for retired power battery modules according to claim 4, characterized in that: The spraying unit includes a support column, which is inserted into the recessed hole with one end inserted into the receiving cavity and the other end extending out of the receiving cavity. One end of the support column is provided with a limiting plate, and the other end is provided with a sealing plate. The sealing plate is adapted to the recessed hole. A through hole is opened on the limiting plate. A liquid inlet is opened on the side wall of the receiving cavity. The liquid inlet is connected to the adhesive remover storage tank through a hose. The adhesive remover in the adhesive remover storage tank is pumped into the receiving cavity through the hose.

6. The low-damage dismantling device for retired power battery modules according to claim 1, characterized in that: The upper worktable is driven by a linear drive device to move towards the lower worktable.

7. The low-damage dismantling device for retired power battery modules according to claim 1, characterized in that: The clamping assembly includes a first clamping plate and a second clamping plate. A sliding groove is provided on the lower worktable. The ends of the first clamping plate and the second clamping plate are inserted into the sliding groove and slide within the sliding groove. An elastic element is provided on the end face of the first clamping plate and the second clamping plate that contacts the battery module. The first clamping plate and the second clamping plate are provided with sliders at their ends. The sliders are inserted into the slide groove. The side wall of the slider is provided with a locking piece. The slider is provided with an adjusting bolt. Rotating the adjusting bolt pushes the locking piece against the side wall of the slide groove.

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