Auxiliary device for opening of lithium battery aluminum shell

Abstract

The utility model relates to battery manufacturing technical field discloses a lithium battery aluminium shell opening auxiliary device, including the one side of collection box is equipped with opening portion, first cutting part is along the length direction of collection box and is located the bottom of one side of opening portion, and the side of first cutting part away from opening portion has puncture part, second cutting part symmetry is set up in the both sides of first cutting part, and second cutting part and first cutting part have the included angle between, the side of second cutting part away from opening portion has blade part, the utility model discloses through puncture part can conveniently and quickly puncture battery aluminium shell, and first cutting part and second cutting part form spacing cutting, guarantee cutting battery aluminium shell and will not damage battery internal structure, avoid the traditional opening battery and need cutting knife and opening pliers and so on multiple tools to and forth switching use, thereby promote the operation efficiency, and reduce the probability of the operation personnel to be hurt, and then reduce unnecessary trouble for the user.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, and in particular to an auxiliary device for opening the aluminum shell of a lithium battery. Background Technology

[0002] In battery cell production, after the cells are baked, a moisture test is performed. This test requires removing a cell from the oven, opening the aluminum casing, and placing a portion of the cell's electrode plates into a testing instrument. To avoid accidentally damaging the battery's internal structure when opening the cell, a deep scratch must first be made around the aluminum casing with a utility knife. Then, pliers are used to crack the casing and roll it outwards to open the cell. This process requires many tools and carries a significant risk of injuring employees. Utility Model Content

[0003] The purpose of this invention is to provide an auxiliary device for opening the aluminum casing of a lithium battery to solve the problems in the prior art. It can open the aluminum casing of the battery cell in one go and collect the cut casing material, avoiding the need to switch tools during the operation and reducing the risk of employee injury.

[0004] This utility model provides an auxiliary device for opening the aluminum shell of a lithium battery, comprising:

[0005] A collection box having a cavity for receiving air, and an opening on one side of the collection box;

[0006] The first cutting element is disposed at the bottom of one side of the opening along the length direction of the collection box, and the side of the first cutting element away from the opening has a piercing part.

[0007] The second cutting element is symmetrically arranged on both sides of the first cutting element, and there is an angle between the second cutting element and the first cutting element. The side of the second cutting element away from the opening has a cutting edge.

[0008] In the lithium battery aluminum shell opening auxiliary device described above, preferably, the two sides of the first cutting member gradually narrow from the connection end between the first cutting member and the opening to the puncture end.

[0009] In the lithium battery aluminum shell opening auxiliary device described above, preferably, the collection box is further provided with a guide member, which is arranged opposite to the first cutting member to guide the cut aluminum shell into the collection box.

[0010] In the lithium battery aluminum shell opening auxiliary device described above, preferably, the guide includes a U-shaped frame, the open end of which is connected to the collection box, and the bottom end of which is located above the second cutting member.

[0011] In the lithium battery aluminum casing opening auxiliary device described above, preferably, the opening is provided with a baffle, and there is an opening between the baffle and the U-shaped frame.

[0012] In the lithium battery aluminum casing opening auxiliary device described above, preferably, the collection box is movably connected to a side door that can be opened or closed.

[0013] In the lithium battery aluminum casing opening auxiliary device described above, preferably, the bottom of the collection box is provided with rotating wheels.

[0014] Compared with the prior art, this utility model can easily and quickly pierce the aluminum shell of the battery through the piercing part. The first cutting part and the second cutting part form a limiting cut to ensure that the internal structure of the battery will not be damaged when cutting the aluminum shell. This avoids the need to switch back and forth between multiple tools such as cutting knives and opening pliers when opening the battery in the traditional way, thereby improving work efficiency and reducing the probability of injury to the operator, thus reducing unnecessary trouble for the user. Attached Figure Description

[0015] Figure 1 This is a perspective view of the lithium battery aluminum shell opening auxiliary device provided in an embodiment of this utility model;

[0016] Figure 2 This is a side view of the lithium battery aluminum shell opening auxiliary device provided in an embodiment of this utility model;

[0017] Figure 3 This is a perspective view of the lithium battery aluminum shell opening auxiliary device provided in an embodiment of this utility model;

[0018] Figure 4 This is a front view of the lithium battery aluminum shell opening auxiliary device provided in an embodiment of this utility model;

[0019] Figure 5 This is an enlarged view of the second cutting component provided in an embodiment of this utility model;

[0020] Figure 6 This is a top-down view of the lithium battery aluminum shell opening auxiliary device provided in an embodiment of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 10. Collection box; 11. Receiving cavity; 12. Opening; 13. Baffle; 14. Side door; 15. Rotating wheels;

[0023] 20. First cutting component; 21. Puncture section;

[0024] 30. Second cutting component; 31. Blade;

[0025] 40. Guide components. Detailed Implementation

[0026] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] See Figure 1-5 As shown, a lithium battery aluminum casing opening auxiliary device includes a collection box 10, a first cutting component 20, and a second cutting component 30, wherein:

[0028] The collection box 10 has a cavity 11 for collecting the cut-off aluminum battery casings. An opening 12 is provided on one side of the collection box 10. A first cutting element 20 is located at the bottom of the opening 12 along the length of the collection box 10, and the side of the first cutting element 20 facing away from the opening 12 has a piercing portion 21. A second cutting element 30 is symmetrically arranged on both sides of the first cutting element 20, forming an angle with it. The side of the second cutting element 30 facing away from the opening 12 has a cutting edge 31. The first cutting element 20 and the second cutting element 30 can be made of metal or non-metal materials, and different sizes of cutting blades can be selected according to the material thickness of the cut aluminum battery casing. In this embodiment, the piercing part 21 is used to pierce the aluminum shell of the battery without the need for pre-drilling holes with other opening tools. The collection box 10 is pushed to move along the piercing opening of the aluminum shell of the battery. The first cutting part 20 and the second cutting part 30 work synchronously. The piercing part 21 keeps the piercing opening guided, and the blades 31 on both sides cut longitudinally along the aluminum shell. When the collection box 10 moves from one end of the aluminum shell of the battery to the other end, the blades 31 continue to cut as the collection box 10 moves, and the complete aluminum shell of the battery can be removed.

[0029] The angle between the second cutting piece 30 and the first cutting piece 20 can be 90 degrees, but as a better approach, the second cutting piece 30 and the first cutting piece 20 form a V-shaped angle, causing the blade 31 to generate a lateral force during cutting, reducing the resistance of the blade 31, and the inclined cutting method makes it easier to cut into the aluminum shell. The first cutting piece 20 can be inserted into the receiving cavity 11 from the opening 12 and bolted or welded to the collection box 10. The distance between the two second cutting pieces 30 is less than the width of the opening 12, so that the width of the cut battery aluminum shell is less than the opening 12, allowing it to be easily collected in the collection box 10.

[0030] In use, the puncture part 21 pierces the aluminum casing of the battery, and the operator holds the collection box 10 and moves it. The first cutting part 20 and the second cutting part 30 automatically complete the cutting, avoiding the cutting of the aluminum casing of the battery from scratching the operator. Moreover, the process is completed in one go, reducing the cumbersome use of multiple instruments. The width of the cut aluminum casing of the battery is the distance between the two second cutting parts 30. Therefore, this embodiment can also customize opening auxiliary devices of different sizes according to different cutting widths to increase applicability.

[0031] See Figure 1 and Figure 6 As shown, in this embodiment, the two sides of the first cutting member 20 gradually narrow from the connection end between the first cutting member 20 and the opening 12 towards the piercing part 21. The narrowing structure makes the piercing part 21 form a "wedge-shaped" or "conical" tip, reducing the contact area and allowing for faster piercing of the battery aluminum shell. The narrowing slope on both sides allows the device to form a gradual entry method when cutting the shell, avoiding deformation, wrinkling, or tearing of the aluminum shell due to excessive instantaneous force, and also making the cutting edge smoother, reducing burrs or rough edges. As a more preferred method, the upper surface of the first cutting member 20 forms an inclined surface from the opening 12 towards the piercing part 21, allowing the second cutting member 30 to penetrate deeper into the shell more smoothly after piercing the battery aluminum shell.

[0032] See Figure 1-4 As shown, since the cut aluminum shell is relatively thin, it may curl upwards during the movement of the collection box 10, affecting the cutting process and potentially scratching the operator. Therefore, in this embodiment, the collection box 10 is also provided with a guide 40, which is positioned opposite to the first cutting member 20 to guide the cut aluminum shell into the collection box 10. The guide 40 and the first cutting member 20 form an upper and lower clamping channel, which limits the cut aluminum shell during the cutting process, forcing it to extend smoothly into the collection box 10 along the moving direction, preventing it from curling upwards and tangling. The guide 40 can be designed as a flat pressure plate or an arc-shaped guide plate, applying slight pressure to the upper surface of the aluminum shell to guide it into the collection box 10.

[0033] In one possible implementation, see [link to implementation details]. Figure 3 As shown, the guide 40 includes a U-shaped frame, the open end of which is connected to the collection box 10, and the bottom end of which is located above the second cutting member 30. During the cutting process of the second cutting member 30, the cut aluminum shell is guided into the collection box 10 by the pressure of the U-shaped frame as it curls upward. The use of the U-shaped frame can achieve lightweight processing and reduce the material consumption of the device.

[0034] To prevent the aluminum shell that has already entered the collection box 10 from detaching during subsequent cutting, see [reference needed]. Figure 1 and Figure 3As shown, in this embodiment, a baffle 13 is provided at the opening 12, and there is an opening between the baffle 13 and the U-shaped frame. The baffle 13 only closes the lower half of the opening 12, while the upper half remains open. The cut aluminum shells will be guided by the U-shaped frame to enter the receiving cavity 11 of the collection box 10 through the opening, forming a one-way channel. Only the aluminum shells are allowed to move from the opening into the collection box 10. When subsequent cutting continues to advance into the collection box 10, the aluminum shells that have fallen into the collection box 10 will be blocked by the baffle 13 and cannot be pushed back to the cutting area in the opposite direction of cutting, thus avoiding the accumulation of aluminum shells and affecting the cutting.

[0035] See Figure 3 and Figure 6 As shown, in this embodiment, a side door 14 that can be opened or closed is movably connected to the collection box 10. The purpose of providing the side door 14 is to facilitate the removal of the cut-off aluminum shells. The position of the side door 14 can be at the top or bottom of the collection box 10, and is not limited here.

[0036] See Figure 2-3 and Figure 6 As shown, the bottom of the collection box 10 is provided with a rotating wheel 15. The rotating wheel 15 can rotate when the user manually pushes the collection box 10, so that the collection box 10 moves forward, reducing the risk of damage to the internal structure of the battery by the collection box 10 or the first cutting piece 20. The rotating wheel 15 can be in the form of wheels, tracks, etc., and can be powered manually or by electricity, etc., without limitation.

[0037] The shape of the collection box 10 can be set to be easy to grip, which is ergonomic and reduces operator fatigue. It should be noted that this opening auxiliary device can be used in the lithium battery industry to cut the aluminum shell of the battery, and can also be used in other industries to cut shells of different materials.

[0038] The above description, based on the embodiments shown in the drawings, details the structure, features, and effects of this utility model. The above description is only a preferred embodiment of this utility model, but the scope of implementation of this utility model is not limited to what is shown in the drawings. Any changes made in accordance with the concept of this utility model, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, shall be within the protection scope of this utility model.

Claims

1. A lithium battery aluminum casing opening auxiliary device, characterized in that, include: A collection box having a cavity for receiving air, and an opening on one side of the collection box; The first cutting element is disposed at the bottom of one side of the opening along the length direction of the collection box, and the side of the first cutting element away from the opening has a piercing part. The second cutting element is symmetrically arranged on both sides of the first cutting element, and there is an angle between the second cutting element and the first cutting element. The side of the second cutting element away from the opening has a cutting edge.

2. The lithium battery aluminum casing opening auxiliary device according to claim 1, characterized in that, The two sides of the first cutting member gradually narrow from the connection end between the first cutting member and the opening towards the puncture end.

3. The lithium battery aluminum casing opening auxiliary device according to claim 1, characterized in that, The collection box is also equipped with a guide, which is positioned opposite to the first cutting component to guide the cut aluminum shell into the collection box.

4. The lithium battery aluminum casing opening auxiliary device according to claim 3, characterized in that, The guide includes a U-shaped frame, the open end of which is connected to the collection box, and the bottom end of which is located above the second cutting member.

5. The lithium battery aluminum casing opening auxiliary device according to claim 4, characterized in that, The opening is provided with a baffle, and there is an opening between the baffle and the U-shaped frame.

6. The lithium battery aluminum casing opening auxiliary device according to claim 1, characterized in that, The collection box is movably connected to a side door that can be opened or closed.

7. The lithium battery aluminum casing opening auxiliary device according to claim 1, characterized in that, The bottom of the collection box is equipped with casters.

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