Battery cell disassembling device

Abstract

The utility model provides a battery cell disassembling device. The battery cell disassembling device comprises a base and a cutting tool arranged on the base, a sliding part is arranged on the base, and the battery cell carried on the top of the sliding part can slide on the base along a straight line; the cutting tool comprises a tool handle and a tool bit arranged on the tool handle, the tool bit is arranged at one end of the tool handle, and the other end of the tool handle is hinged to the base. The cutting direction of the cutter head is parallel to the sliding direction of the battery cell, and an elastic piece is arranged on the cutter handle; when the cutter handle is rotated to keep the cutter head away from the base, the elastic piece stores energy; and when the elastic piece releases energy, the cutter head is close to the base and abuts against the top of the shell of the battery cell. According to the battery cell disassembling device disclosed by the utility model, through the arrangement of the sliding part and the cutting tool, when the battery cell moves through the sliding part, the cutter handle is driven by the elastic piece, so that the cutter head can cut a shell of the battery cell with a certain pressure, the shell of the battery cell is stably cut, and the interior of the battery cell is prevented from being damaged; and meanwhile, operators are prevented from being injured.

Description

Technical Field

[0001] The utility model relates to the technical field of power batteries, in particular to a battery core disassembly device. Background Art

[0002] With the rapid development of new energy electric vehicles, the use of electric vehicles in the market has gradually increased, and various failure problems have also arisen. Among them, failures caused by battery cells account for the vast majority. When analyzing the reasons for failure of battery cells returned to the factory, it is often necessary to further disassemble the battery cell casing.

[0003] Currently, battery cell casings are typically disassembled by manually scoring and cutting the casing with a tool, creating a groove. Diagonal pliers are then used to break the casing open. However, manual cutting creates uneven grooves, and uneven force results in inconsistent groove depths, which can easily scratch the cell's internal insulation, causing damage and short circuits within the cell. Furthermore, during manual cutting, the tool can break due to improper operation, potentially injuring the operator. Utility Model Content

[0004] In view of this, the present invention aims to provide a battery cell disassembly device that can cut the battery cell shell and prevent the interior of the battery cell from being damaged, while avoiding injuries to operators.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0006] A battery cell disassembly device comprises a base and a cutting tool provided on the base; a sliding portion is provided on the base, and a battery cell mounted on top of the sliding portion can slide in a straight line on the base; the cutting tool comprises a handle and a cutter head provided on the handle, the cutter head is provided at one end of the handle, and the other end of the handle is hinged to the base; the cutting direction of the cutter head is parallel to the sliding direction of the battery cell, and an elastic member is provided on the handle; when the handle is rotated to move the cutter head away from the base, the elastic member stores energy; when the elastic member releases energy, the cutter head approaches the base and abuts against the top of the battery cell shell.

[0007] Furthermore, the sliding portion includes a slide plate and a slide rail provided on the base; the slide rails are configured as two parallel arranged ones, and the slide plate can carry the battery cell and slide on the slide rails.

[0008] Furthermore, two spaced-apart limiting bars are provided on the top of the slide, and the battery cell can be placed between the two limiting bars; in the sliding direction of the battery cell, the two limiting bars constrain the battery cell.

[0009] Furthermore, a baffle for blocking the slide plate is provided at one end of the slide rail.

[0010] Furthermore, two vertical rods are provided on the base, and the two vertical rods are respectively arranged on the left and right sides of the knife handle, and a limit block is connected between the tops of the two vertical rods; the bottom end of the elastic member is connected to the knife handle, and the top end of the elastic member is connected to the limit block; when the knife handle is rotated to make the knife head move away from the base, the elastic member is compressed to store energy.

[0011] Furthermore, an arc-shaped limiting rod is provided on the knife handle, and a through hole for the limiting rod to pass through is formed on the limiting block; when the knife handle is rotated, the limiting rod can slide in the through hole.

[0012] Furthermore, the elastic member is a spring.

[0013] Furthermore, the spring is wound around the limiting rod.

[0014] Furthermore, the cutter head is detachably fixed to one end of the handle by a bolt.

[0015] Furthermore, the cutter head is a ceramic cutter head.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] The battery cell disassembly device described in the present invention is provided with a sliding portion and a cutting tool. When the battery cell moves through the sliding portion, the knife handle is driven by the elastic member so that the knife head can cut the battery cell shell with a certain pressure. Compared with the existing manual cutting disassembly direction, this embodiment can stably cut the battery cell shell and prevent the interior of the battery cell from being damaged, while avoiding injury to the operator.

[0018] In addition, the sliding portion includes a slide and a slide rail provided on the base. The slide can slide smoothly on the slide rail, allowing the battery cells mounted on the slide to slide smoothly, thereby improving the smoothness of the battery cell movement. The top of the slide is provided with two spaced-apart limit bars, which constrain the battery cells and improve the stability of the slide carrying the battery cells. A baffle is provided at one end of the slide rail to block the slide, which can limit the slide and prevent it from detaching from the slide rail during movement.

[0019] In addition, the base is provided with two vertical rods, and a limit block is connected between the tops of the two vertical rods. An elastic member connects the limit block and the knife handle so that the elastic member can apply sufficient pressure to the knife handle and limit the rotation of the knife handle. The knife handle is provided with an arc-shaped limit rod, and the limit block is formed with a through hole for the limit rod to pass through. The limit block can cooperate with the limit rod through the through hole to form a lateral limit on the middle part of the knife handle, thereby reducing the shaking of the knife handle. The elastic member is a spring. The spring has a simple and reliable structure and has high elasticity.

[0020] Furthermore, the spring wrapped around the stop rod facilitates its installation and securement, preventing it from bending outward due to compression and ensuring sufficient pressure on the handle. The cutter head is removably fixed to one end of the handle with a bolt, facilitating its removal and replacement. Furthermore, the ceramic cutter head prevents short circuits in the battery during cutting, ensuring operator safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of the battery cell disassembly device according to an embodiment of the present utility model;

[0023] Figure 2 This is a structural schematic diagram of the battery cell disassembly device according to an embodiment of the present utility model from another perspective;

[0024] Description of reference numerals:

[0025] 1. Base; 101. Slide plate; 102. Slide rail; 103. Limiting bar; 104. Baffle;

[0026] 2. Cutting tool; 201. Tool handle; 202. Tool head; 203. Limit rod;

[0027] 3. Battery cells;

[0028] 4. Elastic parts;

[0029] 5. Vertical rod; 6. Limit block. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0031] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obscuring the description of the present application with unnecessary detail.

[0032] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," and "outer" appear to indicate orientation or positional relationships, these are based on the orientation or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, if terms such as "first" and "second" appear, they are used solely for descriptive purposes and should not be construed as indicating or implying relative importance.

[0033] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "mounted," "connected," "connection," and "connector" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0034] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0035] This embodiment relates to a battery cell disassembly device for cutting the shell of a square battery cell 3. The overall structure is as follows: Figure 1 and Figure 2 As shown, it includes a base 1 and a cutting tool 2 arranged on the base 1.

[0036] The base 1 is provided with a sliding portion, and the battery cell 3 mounted on top of the sliding portion can slide linearly on the base 1. The cutting tool 2 includes a handle 201 and a cutting head 202 mounted on the handle 201. The cutting head 202 is located at one end of the handle 201, and the other end of the handle 201 is hinged to the base 1. The cutting direction of the cutting head 202 is parallel to the sliding direction of the battery cell 3, and the handle 201 is provided with an elastic member 4.

[0037] When the handle 201 is rotated to move the blade 202 away from the base 1, the elastic member 4 accumulates energy. When the elastic member 4 releases the energy, the blade 202 moves toward the base 1 and abuts against the top of the battery cell 3 casing. At this point, by moving the battery cell 3, the blade 202 can scratch the battery cell 3 casing with a certain pressure, thereby cutting the battery cell 3 casing.

[0038] As described above, through the arrangement of the sliding portion and the cutting tool 2, when the battery cell 3 moves through the sliding portion, the handle 201 is driven by the elastic member 4 so that the cutter head 202 can cut the shell of the battery cell 3 with a certain pressure. Compared with the existing manual cutting disassembly direction, this embodiment can stably cut the shell of the battery cell 3 and prevent the interior of the battery cell 3 from being damaged, while avoiding injury to the operator.

[0039] Based on the above overall introduction, specifically, the sliding portion of this embodiment includes a slide plate 101 and a slide rail 102 provided on the base 1. The slide rails 102 are configured as two parallel rails, and the slide plate 101 can carry the battery cell 3 and slide on the slide rails 102. Through the arrangement of the slide rails 102 and the slide plate 101, the slide plate 101 can slide smoothly on the slide rails 102, allowing the battery cell 3 to slide smoothly when carried on the slide plate 101, thereby improving the smoothness of the movement of the battery cell 3 and ensuring the accuracy of the cutting tool 2 in cutting the battery cell 3 shell.

[0040] Since the battery cells 3 are placed on the slide 101, the operator needs to push the slide 101 or the battery cells 3 to move. In order to prevent the battery cells 3 from sliding against the slide 101 due to the cutting resistance of the cutter head 202, two spaced-apart limiting bars 103 are provided on the top of the slide 101 of this embodiment, and the battery cells 3 can be placed between the two limiting bars 103. With this arrangement, the two limiting bars 103 constrain the battery cells 3 in the sliding direction, so that the battery cells 3 will not slide against the slide 101 in the moving direction during movement, thereby improving the stability of the slide 101 carrying the battery cells 3 and ensuring the accuracy of the cutter head 202 in cutting the shells of the battery cells 3.

[0041] In practice, to adapt the cell disassembly device of this embodiment to square cells 3 of varying sizes, the two limiting bars 103 on the slide 101 of this embodiment are bonded to the slide 101. The spacing between the two limiting bars 103 can be determined by the size of the cell 3, allowing the limiting bars 103 to effectively restrain the cell 3. Furthermore, the bonded limiting bars 103 are easily removable using a disassembly agent. Of course, the limiting bars 103 of this embodiment can also be connected to the slide 101 using other fixing methods, such as snap-fitting.

[0042] In addition, a baffle 104 for blocking the slide plate 101 is provided at one end of the slide rail 102 of this embodiment, which can limit the slide plate 101 to prevent the slide plate 101 from detaching from the slide rail 102 when moving.

[0043] In addition, in this embodiment, two vertical rods 5 are provided on the base 1, and the two vertical rods 5 are respectively arranged on the left and right sides of the handle 201, and a limit block 6 is connected between the tops of the two vertical rods 5. The bottom end of the elastic member 4 is connected to the handle 201, and the top end of the elastic member 4 is connected to the limit block 6. When the handle 201 is rotated to make the cutter head 202 away from the base 1, the elastic member 4 is compressed and stores energy. Through the arrangement of the vertical rods 5 and the limit block 6, the elastic member 4 can be configured above the handle 201, so that the elastic member 4 can apply sufficient pressure to the handle 201 to ensure the cutting effect of the cutter head 202 on the battery cell 3 shell. In addition, the arrangement of the limit block 6 between the two vertical rods 5 can limit the rotation angle of the handle 201 to prevent the cutter head 202 from causing harm to the operator.

[0044] It is understandable that, because the handle 201 is long and only one end of the handle 201 is hinged to the base 1, the handle 201 is prone to lateral shaking during the cutting process of the battery cell 3 shell, resulting in uneven cutting. Therefore, an arc-shaped limit rod 203 is provided on the handle 201 of this embodiment, and a through hole for the limit rod 203 to pass through is formed on the limit block 6. When the handle 201 is rotated, the limit rod 203 can slide in the through hole. Thus, through the cooperation between the limit rod 203 and the through hole in the limit block 6, the limit block 6 can cooperate with the limit rod 203 through the through hole to form a lateral limit on the middle part of the handle 201, thereby reducing the shaking of the handle 201 to a certain extent, thereby ensuring the accuracy of the cutting of the battery cell 3 shell by the cutter head 202.

[0045] Specifically, the elastic member 4 of this embodiment is a spring. The spring has a simple and reliable structure and high elasticity. When releasing energy, it can exert sufficient pressure on the knife handle 201, thereby ensuring that the knife head 202 cuts through the battery cell 3 casing with a certain pressure. In practice, the battery cell disassembly device of this embodiment can be equipped with springs of different specifications depending on the size of the battery cell 3 and the thickness of the battery cell 3 casing. By adjusting the elastic modulus and length of the spring, the pressure exerted by the knife head 202 on the battery cell 3 casing can be varied to ensure that the knife head 202 can cut through the battery cell 3 casing without damaging the internal structure of the battery cell 3.

[0046] Furthermore, since a longer spring tends to bend outward when compressed, the spring cannot exert sufficient pressure on the knife handle 201. Therefore, the spring of this embodiment is wound around the limiting rod 203, which facilitates the installation and fixation of the spring and prevents the spring from bending outward due to compression, ensuring that the spring exerts sufficient pressure on the knife handle 201, thereby improving the reliability of the battery cell disassembly device of this embodiment.

[0047] In this embodiment, the cutter head 202 loses its sharpness due to wear after repeated use, necessitating replacement. Therefore, to facilitate removal and replacement of the cutter head 202, the cutter head 202 of this embodiment is detachably secured to one end of the handle 201 via a bolt. This bolted securing of the cutter head 202 provides a good securing effect, and the cutter head 202 can be removed by simply removing the bolt, thereby facilitating removal and replacement of the cutter head 202.

[0048] In addition, in order to prevent the cutter head 202 from coming into contact with the internal structure of the battery cell 3 during the process of cutting the battery cell 3 shell, thereby causing the battery cell 3 to short-circuit and catch fire, the cutter head 202 of this embodiment is a ceramic cutter head, which has good hardness and can effectively cut the battery cell 3 shell. The ceramic cutter head 202 has good insulation properties, which can prevent the battery cell 3 from short-circuiting and ensure the safety of the operator.

[0049] In summary, the battery cell disassembly device of this embodiment, through the arrangement of the sliding part and the cutting tool 2, when the battery cell 3 moves through the sliding part, the handle 201 is driven by the elastic part 4, so that the cutter head 202 can cut the shell of the battery cell 3 with a certain pressure. Compared with the existing manual cutting disassembly direction, this embodiment can stably cut the shell of the battery cell 3 and prevent the interior of the battery cell 3 from being damaged, while avoiding injury to the operator.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A battery cell disassembly device, characterized in that: It comprises a base and a cutting tool arranged on the base; The base is provided with a sliding portion, and the battery cell mounted on the top of the sliding portion can slide along a straight line on the base; The cutting tool comprises a handle and a cutter head provided on the handle, wherein the cutter head is provided at one end of the handle, and the other end of the handle is hinged to the base; The cutting direction of the blade is parallel to the sliding direction of the battery cell, and an elastic member is provided on the blade handle; When the knife handle is rotated to move the knife head away from the base, the elastic member stores energy; When the elastic member releases energy, the blade head approaches the base and abuts against the top of the shell of the battery cell.

2. The battery cell disassembly device according to claim 1, characterized in that: The sliding portion includes a slide plate and a slide rail provided on the base; The slide rails are configured as two parallel rails, and the slide plate can carry the battery core and slide on the slide rails.

3. The battery cell disassembly device according to claim 2, characterized in that: The top of the slide is provided with two spaced-apart limiting bars, and the battery cell can be placed between the two limiting bars; In the sliding direction of the battery core, the two limit bars constrain the battery core.

4. The battery cell disassembly device according to claim 2, characterized in that: One end of the slide rail is provided with a baffle for blocking the slide plate.

5. The battery cell disassembly device according to claim 1, characterized in that: Two vertical rods are provided on the base, and the two vertical rods are respectively provided on the left and right sides of the handle, and a limit block is connected between the tops of the two vertical rods; The bottom end of the elastic member is connected to the knife handle, and the top end of the elastic member is connected to the limiting block; When the knife handle is rotated to move the knife head away from the base, the elastic member is compressed to store energy.

6. The battery cell disassembly device according to claim 5, characterized in that: The knife handle is provided with an arc-shaped limiting rod, and the limiting block is formed with a through hole for the limiting rod to pass through; When the knife handle is rotated, the limiting rod can slide in the through hole.

7. The battery cell disassembly device according to claim 6, characterized in that: The elastic member is a spring.

8. The battery cell disassembly device according to claim 7, characterized in that: The spring is wound around the limiting rod.

9. The battery cell disassembly device according to any one of claims 1 to 8, characterized in that: The cutter head is detachably fixed to one end of the cutter handle by a bolt.

10. The battery cell disassembly device according to any one of claims 1 to 8, characterized in that: The cutter head is a ceramic cutter head.

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