Battery pack splitting device

Abstract

The utility model belongs to the technical field of battery manufacturing, and discloses a battery pack splitting device. The battery pack splitting device comprises a platform, a telescopic cutter, a dust collection assembly and a negative pressure pipeline, a battery pack to be split is placed on the platform, the telescopic cutter and the dust collection assembly are adjustably installed on the platform in the arrangement direction of single batteries in the battery pack, and the telescopic cutter is used for cutting colloid between every two adjacent single batteries. The dust collection assembly can be attached to the surface of the single battery to form a collection cavity, the collection cavity is used for collecting foreign matter generated by splitting, and the negative pressure pipeline communicates with the collection cavity and can discharge the foreign matter out of the collection cavity. According to the battery pack splitting device, foreign matters can be prevented from directly drifting into a working environment, the phenomenon that the foreign matters are attached to the single batteries is reduced, the possibility that the single batteries are polluted by the foreign matters to cause short circuit can be effectively reduced, the cleanliness of the working environment is maintained, and the performance, safety and reliability of the split and recombined battery pack are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, and in particular to a battery pack splitting device. Background Technology

[0002] In the assembly process of power batteries, a core step is to combine individual battery cells into a battery pack by adhesive bonding, followed by welding of key components such as end plates, side plates, and busbars. This process ensures the structural integrity of the battery module and the reliability of its electrical connections. However, in actual operation, it is inevitable that some individual battery cells in the battery pack may malfunction or fail to meet performance standards, requiring rework.

[0003] Currently, the industry's standard solution for this type of problem is to use tools such as resin boards and cutters to separate the problematic cells by cutting the adhesive between them, thus preserving the other intact cells for reassembly and saving costs. However, this rework method has revealed a series of problems in practical applications.

[0004] Specifically, methods such as resin plate cutting or blade cutting often generate a large amount of dust, adhesive residue, and other foreign matter during the operation. These foreign matter can easily drift into the working environment or adhere to individual battery cells, which may not only cause secondary pollution of the electrode core, but in severe cases may even cause short circuits in the electrode core, seriously affecting the performance and safety reliability of the battery pack.

[0005] Therefore, there is an urgent need for a battery pack disassembly device that can solve the above problems in order to avoid contamination of the working environment and individual batteries by foreign objects such as dust and glue debris. Utility Model Content

[0006] The purpose of this invention is to provide a battery pack splitting device that can prevent dust, glue residue and other foreign matter from contaminating the working environment and individual batteries.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] Battery pack splitting device, including:

[0009] A platform on which the battery pack to be disassembled can be fixedly placed; a telescopic cutter, which is adjustablely mounted on the platform along a first direction, and is used to cut the adhesive between two adjacent individual batteries; a dust collection assembly, which is adjustablely mounted on the platform along the first direction and can be attached to the surface of the individual batteries in the battery pack to form a collection cavity between the dust collection assembly and the two adjacent individual batteries to be disassembled, the collection cavity being used to collect foreign matter generated during disassembly, the first direction being parallel to the arrangement direction of the individual batteries; and a negative pressure pipe, which is connected to the collection cavity and is used to discharge the foreign matter from the collection cavity.

[0010] Preferably, the battery pack splitting device further includes a bracket, which is adjustablely mounted on the platform along the first direction, and the telescopic blade and the dust collection assembly are both mounted on the bracket.

[0011] Preferably, the blade of the telescopic cutter extends along a second direction, and the telescopic cutter is adjustablely positioned on the bracket in a vertical direction, enabling it to cut the adhesive in a vertical direction. The dust collection assembly is disposed on at least one side of the single battery cell along the second direction, and the projected portion of the dust collection assembly covers the projection of the blade of the telescopic cutter along the second direction. The dust collection assembly can fit against at least one surface of the single battery cell to form the collection cavity on at least one side of the single battery cell. The second direction is parallel to the width or length direction of the single battery cell.

[0012] Preferably, the dust collection assembly includes a dust collection box, which is mounted on the bracket. Each of the individual batteries has a dust collection box on each side along the second direction. The dust collection box is open at one end facing the individual battery and has an interface for connecting to the negative pressure pipe.

[0013] Preferably, the opening of the dust collection box is also provided with an edge sealing member, which can seal the gap between the side of the single battery and the opening of the dust collection box.

[0014] Preferably, the battery pack splitting device further includes a terminal protection cover, which is movably disposed in the vertical direction on the bracket or the telescopic cutter, and the terminal protection cover can cover the terminal installed on the individual battery to protect the terminal.

[0015] Preferably, the telescopic cutter has a limiting groove extending vertically, and the pole post protective cover has a protrusion that is inserted into the limiting groove to limit the sliding connection between the pole post protective cover and the telescopic cutter; and / or,

[0016] The bracket has a snap-fit ​​groove that extends vertically, and the pole post protective cover has a snap-fit ​​part that is snapped into the snap-fit ​​groove to limit the sliding connection between the pole post protective cover and the bracket.

[0017] Preferably, the battery pack splitting device includes at least two terminal protection covers, which are symmetrically arranged along the first direction, and the telescopic cutter is located between the two terminal protection covers.

[0018] Preferably, along the first direction, there is a preset distance between the telescopic cutter and the adjacent pole guard, the preset distance being equal to the distance between the pole and the adjacent adhesive material.

[0019] Preferably, the battery pack splitting device further includes a baffle and a pressure plate disposed on the platform. The baffle and the pressure plate are disposed opposite to each other along the first direction, and the baffle is adjustablely mounted on the platform along the first direction. The pressure plate is used to fit against one side of the battery pack in the first direction, and the baffle is used to fit against the other side of the battery pack in the first direction, so as to clamp and fix the battery pack.

[0020] The beneficial effects of this utility model are as follows: During the cutting process, the battery pack splitting device can collect foreign objects through the collection cavity formed between the dust collection component and the battery surface, and discharge the collected foreign objects through the negative pressure pipe. This avoids foreign objects from directly drifting into the working environment, reduces the phenomenon of foreign objects adhering to individual batteries, and effectively reduces the possibility of short circuits caused by contamination of individual batteries. This allows the battery pack splitting device to maintain the cleanliness of the working environment during continuous splitting operations and ensures the performance and safety reliability of the battery pack after splitting and reassembly. Attached Figure Description

[0021] Figure 1 This is a perspective view of the battery pack splitting device provided in this utility model;

[0022] Figure 2 This is a side view of the battery pack splitting device provided in this utility model;

[0023] Figure 3 yes Figure 1 A magnified view of point A when the pole protection shield has not descended;

[0024] Figure 4 yes Figure 1 A magnified view of point A when the pole protection shield is descending;

[0025] Figure 5 yes Figure 1 A magnified view of point A when the pole post protective cover has finished descending;

[0026] Figure 6 This is an assembly drawing of the pole post protective cover and bracket in this utility model;

[0027] Figure 7 yes Figure 6 A magnified view of a section at point B in the middle;

[0028] Figure 8 This is a perspective view of the pole post protective cover in this utility model;

[0029] Figure 9 This is a top view of the battery pack splitting device provided in this utility model.

[0030] In the picture:

[0031] 1. Platform; 11. Sliding groove;

[0032] 2. Telescopic cutting tool; 21. Tool magazine; 211. Limiting groove;

[0033] 3. Dust collection assembly; 30. Collection chamber; 31. Dust collection box; 311. Interface; 32. Edge sealing component;

[0034] 4. Negative pressure pipeline;

[0035] 5. Bracket; 51. Vertical member; 511. Snap-fit ​​groove; 52. Horizontal member;

[0036] 6. Pole post protective cover; 61. Protective part; 62. Snap-fit ​​part; 63. Protrusion;

[0037] 7. Baffle;

[0038] 8. Pressure plate;

[0039] 9. Battery pack; 91. Individual cell; 911. Terminal post. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0041] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," "fixed," and "abutting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0044] The following is based on the appendix Figure 1 To be continued Figure 9 This invention introduces the battery pack splitting device provided by this utility model.

[0045] like Figure 1As shown, in this embodiment, the battery pack splitting device mainly includes a platform 1, a telescopic cutter 2, a dust collection assembly 3, and a negative pressure pipe 4. The platform 1 supports the battery pack 9 to be split, allowing it to be placed and fixed on the platform 1 for easy cutting by the telescopic cutter 2. The battery pack 9 includes multiple individual cells 91 arranged in a preset direction (for ease of description, this arrangement direction is defined as the first direction), with adhesive between adjacent individual cells 91 to bond them together. The telescopic cutter 2 is adjustablely mounted on the platform 1 along the arrangement direction of the individual cells 91. When the telescopic cutter 2 moves and aligns with the adhesive, it extends between adjacent individual cells 91 to cut the adhesive, thereby separating the adjacent individual cells 91 and splitting the battery pack 9.

[0046] During the cutting process, foreign objects such as dust and adhesive residue are generated. Therefore, this embodiment specifically includes a dust collection assembly 3 and a negative pressure pipe 4. The dust collection assembly 3 is also adjustablely mounted on the platform 1 along the arrangement direction of the individual battery cells 91, and can be moved to the cutting position of the telescopic cutter 2. The dust collection assembly 3 can adhere to the surface of the individual battery cells 91, thereby forming a collection chamber 30 between the dust collection assembly 3 and two adjacent individual battery cells 91 to be separated. The collection chamber 30 can collect the foreign objects generated during the separation, preventing them from directly drifting into the working environment. Simultaneously, the negative pressure pipe 4 is connected to the collection chamber 30, and can suck out the foreign objects from the collection chamber 30 through negative pressure, thereby preventing the accumulation of foreign objects in the collection chamber 30 and ensuring the continuous collection capability of the collection chamber 30.

[0047] This battery pack splitting device can collect foreign objects through the collection cavity 30 formed between the dust collection component 3 and the battery surface during the cutting process, and discharge the collected foreign objects through the negative pressure pipe 4. This avoids foreign objects from directly drifting into the working environment, reduces the phenomenon of foreign objects adhering to the individual battery cells 91, and can effectively reduce the possibility of short circuits caused by contamination of the individual battery cells 91. This allows the battery pack splitting device to maintain the cleanliness of the working environment during continuous splitting operations and ensure the performance and safety reliability of the battery pack 9 after splitting and reassembling.

[0048] Continue to refer to Figure 1 As shown, in this embodiment, the battery pack splitting device also includes a bracket 5, which is tunably mounted on the platform 1 along the first direction. The telescopic blade 2 and the dust collection assembly 3 are both mounted on the bracket 5 and can move with the bracket 5.

[0049] In this embodiment, for example, the support 5 adopts a gate-shaped structure, formed by combining two vertical rods 51 and one horizontal rod 52, allowing the battery pack 9 to be placed in the middle of the gate-shaped structure. The telescopic cutter 2 is mounted on the horizontal rod 52 and located at the top of the support 5, and can extend and retract vertically to cut the adhesive. The dust collection assembly 3 is disposed on the vertical rods 51 and can fit against both sides of the individual battery 91, thereby forming the aforementioned collection chamber 30 on both sides of the individual battery 91. A sliding connection is formed between the bottom of the vertical rods 51 and the platform 1, allowing the entire support 5 to slide along the platform 1, thereby facilitating the adjustment of the positions of the telescopic cutter 2 and the dust collection assembly 3.

[0050] Specifically, the blade of the telescopic cutter 2 is parallel to the width or length direction of the individual battery 91 (for ease of description, the width or length direction parallel to the blade is defined as the second direction), enabling it to cut vertically. Simultaneously, the telescopic cutter 2 is adjustablely connected to the bracket 5 in the vertical direction, facilitating adjustment of the height between the telescopic cutter 2 and the platform 1, and accommodating the disassembly requirements of battery packs 9 of different specifications. Dust collection components 3 are located on both sides of the individual battery 91 along the second direction, and the projection of the dust collection components 3 along the second direction covers the projection of the blade of the telescopic cutter 2, allowing the dust collection components 3 to adhere to both sides of the separating individual battery 91 and form a collection cavity 30 to collect foreign matter. Optionally, in some other embodiments, the dust collection component 3 can also be attached to only one side of the individual battery 91, forming a collection cavity 30, thereby achieving the collection of foreign matter.

[0051] Of course, in some other embodiments, other shapes of brackets 5 can be used, or the telescopic blade 2 and dust collection assembly 3 can be placed in other positions on the bracket 5. This invention does not impose specific limitations on these, as long as the collection of foreign objects can be achieved. For example, in some embodiments, the telescopic blade 2 is disposed on one side of the battery pack 9 and can extend and retract horizontally to cut the adhesive. The dust collection assembly 3 is disposed on the other side and above the battery pack 9, and can fit against the side and top surfaces of the individual battery 91 to form a collection cavity 30.

[0052] like Figures 1 to 3 As shown, in this embodiment, the dust collection assembly 3 includes a dust collection box 31, which is mounted on the bracket 5 and can move with the bracket 5. A dust collection box 31 is provided on each side of the individual battery 91 along the second direction. The dust collection box 31 has an opening at one end facing the individual battery 91, and the edge of the opening can fit against the side of the individual battery 91, thereby forming a collection cavity 30 to collect foreign objects and prevent them from spreading into the working environment from the gap between the dust collection box 31 and the individual battery 91.

[0053] Meanwhile, the dust collection box 31 is provided with an interface 311, which can be used to connect to the negative pressure pipe 4 to discharge foreign objects and prevent the accumulation and spread of foreign objects in the dust collection box 31. For example, the dust collection box 31 is provided with interfaces 311 on both sides in the first direction, which can uniformly extract air from the dust collection box 31 and reduce the phenomenon of foreign objects remaining in the dust collection box 31.

[0054] More specifically, in this embodiment, as Figure 3 As shown, a sealing element 32 is also provided at the opening of the dust collection box 31. The sealing element 32 can seal the gap between the side of the individual battery 91 and the opening of the dust collection box 31. Specifically, the sealing element 32 is made of rubber strips, with one rubber strip on each of the two vertical edges of the opening of the dust collection box 31. The rubber strips can abut against the dust collection box 31 and the individual battery 91, thereby forming a sealing effect and preventing foreign objects from drifting out of the dust collection box 31 from the gap between the dust collection box 31 and the individual battery 91. At the same time, the relatively soft material of the rubber strips will not negatively interfere with the movement of the bracket 5 and the dust collection box 31, nor will it cause scratches or other damage to the surface of the individual battery 91.

[0055] Optionally, in this embodiment, the dust collection box 31 is vertically adjustable and mounted on the bracket 5. Exemplarily, the bracket 5 has multiple threaded holes arranged vertically, and the dust collection box 31 has through holes through which bolts can pass and selectively connect to at least one of the threaded holes, thereby fixing the dust collection box 31 to the bracket 5. When height adjustment is required, simply changing the threaded hole to which the bolt connects allows the dust collection box 31 to be set at different heights, thus achieving a better dust collection effect for battery packs 9 of different specifications.

[0056] Preferably, in this embodiment, such as Figure 3 As shown, the edge of the single cell 91 is provided with a chamfered structure, and the rubber strip is provided with an inclined surface. The inclined surface can better fit with the chamfered structure, thereby improving the sealing effect.

[0057] like Figures 3 to 5 As shown, in this embodiment, the battery pack splitting device further includes a terminal post protective cover 6. The terminal post protective cover 6 is movably mounted on the bracket 5 in a vertical direction, and the terminal post protective cover 6 can cover the terminal post 911 installed on the individual battery 91 to protect the terminal post 911. Figure 3 As shown, during the movement of the support bracket 5, the terminal protection cover 6 rises to a position spaced apart from the individual battery 91, thereby preventing scratches on the surface of the individual battery 91, especially the terminal 911. When the support bracket 5 moves to the position to be cut, as... Figure 4 As shown, the pole guard 6 moves before the telescopic cutter 2, and finally descends to the position shown. Figure 5The state shown is that the cover is placed over the terminal 911. Subsequently, the cutter in the telescopic cutter 2 extends to cut, thus ensuring that the terminal protection cover 6 effectively shields and protects the terminal 911, preventing foreign objects from adhering to the terminal 911 and causing contamination or short circuits. Preferably, each terminal protection cover 6 has two protective parts 61, one for covering the positive terminal 911 of the single battery 91 and the other for covering the negative terminal 911 of the single battery 91, thereby providing good protection for both the positive and negative terminals 911 of the single battery 91.

[0058] Optionally, in this embodiment, as Figure 6 , Figure 7 As shown, each pole post protective cover 6 has a snap-fit ​​part 62 at both ends, and the bracket 5 has a snap-fit ​​groove 511. The snap-fit ​​part 62 can be embedded in the snap-fit ​​groove 511, thereby installing the pole post protective cover 6 on the bracket 5. At the same time, the snap-fit ​​groove 511 extends vertically, allowing the snap-fit ​​part 62 to slide along the snap-fit ​​groove 511, thereby realizing the raising and lowering action of the pole post protective cover 6.

[0059] Furthermore, in this embodiment, the telescopic cutter 2 includes a cutter magazine 21 and a cutting blade. The cutting blade can extend from the cutter magazine 21 under the action of a cylinder, thereby performing cutting. Figure 7 , Figure 8 As shown, a limiting groove 211 is provided on the outer side of the tool magazine 21, extending vertically. The pole post protective cover 6 is provided with a protrusion 63, which is inserted into the limiting groove 211 to limit the sliding connection between the pole post protective cover 6 and the telescopic tool 2. The limiting part and the limiting groove 211 further restrict the horizontal position of the pole post protective cover 6, preventing it from deviating or flipping, and ensuring that it accurately covers the pole post 911, thereby achieving the protective effect of the pole post 911.

[0060] Preferably, the battery pack splitting device includes two terminal protection covers 6, which are symmetrically arranged along a first direction, with the telescopic cutter 2 located between the two terminal protection covers 6. During the cutting process, the two terminal protection covers 6 can respectively cover and protect the terminals 911 of the individual battery cells 91 located on both sides of the cutting adhesive. Of course, in some other embodiments, more terminal protection covers 6 can be provided to protect a larger area of ​​terminals 911. The number of terminal protection covers 6 is not specifically limited in this invention.

[0061] It should be noted that in this embodiment, along the first direction, there is a preset distance between the telescopic cutter 2 and the adjacent pole post protective cover 6, which is equal to the distance between the pole post 911 and the adjacent adhesive material. That is to say, when disassembling, as long as the pole post protective cover 6 is accurately placed on the pole post 911, the telescopic cutter 2 can be aligned with the adjacent adhesive material in the vertical direction, so that the pole post protective cover 6 can also play an auxiliary role in positioning the telescopic cutter 2.

[0062] Of course, in some embodiments, the pole post protective cover 6 can also be set separately from the telescopic cutter 2 and the bracket 5. For example, during disassembly, the pole post protective cover 6 is first manually fitted vertically onto the corresponding pole post 911; and after disassembly, the pole post protective cover 6 is then manually separated vertically from the pole post 911. Therefore, the method of setting the pole post protective cover 6 is not specifically limited in this utility model; as long as it can be fitted onto the pole post 911 and provide protection, it falls within the scope of protection of this utility model.

[0063] like Figure 9 As shown, in this embodiment, the battery pack splitting device further includes a baffle 7 and a pressure plate 8. The baffle 7 and the pressure plate 8 are arranged opposite to each other along the first direction and installed on the platform 1. The baffle 7 is installed on the platform 1 in an adjustable position along the first direction. The pressure plate 8 is used to fit the battery pack 9 on one side of the first direction, and the baffle 7 is used to fit the battery pack 9 on the other side of the first direction, so as to clamp and fix the battery pack 9.

[0064] For example, platform 1 is provided with a sliding groove 11, and baffle 7 has a sliding protrusion protruding from one end near platform 1. The sliding protrusion is inserted into the sliding groove 11 and can slide along the sliding groove 11 toward or away from the pressure plate 8. Optionally, in some other embodiments, fastening mechanisms such as bolts, buckles, and springs can be provided to fix baffle 7, thereby abutting against the battery pack 9 with a preset pressure to achieve stable clamping and fixing.

[0065] When using this battery pack splitting device, for example, first, place the battery pack 9 to be split on the platform 1, ensuring that the battery pack 9 is stable. Adjust the positions of the baffle 7 and the pressure plate 8 so that they respectively fit against both sides of the battery pack 9 to prevent the battery pack 9 from moving during the cutting process. At the same time, ensure that the interface 311 on the dust collection assembly 3 is correctly connected to the negative pressure pipe 4, and turn on the negative pressure system to prepare for collecting the dust and debris generated during the cutting process.

[0066] Then, based on the location of the adhesive to be cut, adjust the position of the bracket 5 along the arrangement direction of the battery pack 9 so that the telescopic cutter 2 and the dust collection assembly 3 are aligned with the target area. While moving the bracket 5, ensure that the terminal post protective cover 6 is in the raised position to avoid contact with the surface of the battery pack 9, especially the terminal post 911.

[0067] Once the bracket 5 has moved to the predetermined position, the terminal protection cover 6 is first lowered to ensure it accurately covers the terminal 911 of the individual battery 91, forming an effective protective barrier. Next, the telescopic cutter 2 is activated; the cutter extends from the cutter chamber 21 under cylinder drive and precisely cuts along the adhesive between the individual batteries 91. At this time, the dust collection assembly 3 closely adheres to the battery surface, forming a collection chamber 30, and the negative pressure pipe 4 begins operation, immediately sucking up the dust and adhesive debris generated during cutting. After completing one cut, the position of the bracket 5 is adjusted as needed, and the above steps are repeated until all the adhesive that needs to be separated has been cut.

[0068] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0069] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A battery pack splitting device, characterized in that, include: Platform (1), on which the battery pack (9) to be disassembled can be fixedly placed; A telescopic cutter (2) is mounted on the platform (1) in an adjustable position along a first direction. The telescopic cutter (2) is used to cut the adhesive between two adjacent single cells (91). A dust collection assembly (3) is installed in an adjustable position on the platform (1) along the first direction, and the dust collection assembly (3) can be attached to the surface of the individual battery (91) in the battery pack (9) to form a collection cavity (30) between the dust collection assembly (3) and two adjacent individual batteries (91) to be split, the collection cavity (30) is used to collect foreign objects generated during splitting, and the first direction is parallel to the arrangement direction of the individual batteries (91); A negative pressure pipe (4) is provided in connection with the collection chamber (30) and is used to discharge the foreign object from the collection chamber (30).

2. The battery pack splitting device according to claim 1, characterized in that, The battery pack splitting device also includes a bracket (5), which is tunably mounted on the platform (1) along the first direction. The telescopic cutter (2) and the dust collection assembly (3) are both mounted on the bracket (5).

3. The battery pack splitting device according to claim 2, characterized in that, The blade of the telescopic cutter (2) extends along the second direction. The telescopic cutter (2) is vertically adjustable on the bracket (5) and can cut the adhesive in the vertical direction. The dust collection assembly (3) is located on at least one side of the single cell (91) along the second direction. Along the second direction, the projection of the dust collection assembly (3) covers the projection of the blade of the telescopic cutter (2). The dust collection assembly (3) can fit against at least one side surface of the single cell (91) to form the collection cavity (30) on at least one side of the single cell (91). The second direction is parallel to the width or length direction of the single cell (91).

4. The battery pack splitting device according to claim 3, characterized in that, The dust collection assembly (3) includes a dust collection box (31), which is mounted on the bracket (5). Each of the individual batteries (91) has a dust collection box (31) on each side along the second direction. The dust collection box (31) is open at one end facing the individual battery (91) and has an interface (311) for connecting to the negative pressure pipe (4).

5. The battery pack splitting device according to claim 4, characterized in that, The dust collection box (31) is also provided with an edge sealing member (32) at the opening, which can seal the gap between the side of the single battery (91) and the opening of the dust collection box (31).

6. The battery pack splitting device according to claim 2, characterized in that, The battery pack splitting device also includes a terminal protection cover (6), which is movably mounted on the bracket (5) or the telescopic cutter (2) in the vertical direction, and the terminal protection cover (6) can cover the terminal (911) installed on the single cell (91) to protect the terminal (911).

7. The battery pack splitting device according to claim 6, characterized in that, The telescopic cutter (2) has a limiting groove (211) that extends vertically. The pole post protective cover (6) has a protrusion (63) that is inserted into the limiting groove (211) to limit the sliding connection between the pole post protective cover (6) and the telescopic cutter (2); and / or, The bracket (5) has a snap-fit ​​groove (511) that extends vertically. The pole post protective cover (6) has a snap-fit ​​part (62) that is snapped into the snap-fit ​​groove (511) to limit the sliding connection between the pole post protective cover (6) and the bracket (5).

8. The battery pack splitting device according to claim 7, characterized in that, The battery pack splitting device includes at least two terminal protection covers (6), which are symmetrically arranged along the first direction, and the telescopic cutter (2) is located between the two terminal protection covers (6).

9. The battery pack splitting device according to claim 8, characterized in that, Along the first direction, there is a preset distance between the telescopic cutter (2) and the adjacent pole guard (6), the preset distance being equal to the distance between the pole (911) and the adjacent gel.

10. The battery pack splitting device according to claim 1, characterized in that, The battery pack splitting device further includes a baffle (7) and a pressure plate (8) disposed on the platform (1). The baffle (7) and the pressure plate (8) are disposed opposite to each other along the first direction, and the baffle (7) is adjustablely mounted on the platform (1) along the first direction. The pressure plate (8) is used to fit against one side of the battery pack (9) in the first direction, and the baffle (7) is used to fit against the other side of the battery pack (9) in the first direction, so as to clamp and fix the battery pack (9).

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