Lithium battery CCS acquisition board laser welding device

Abstract

The utility model relates to the technical field of laser welding equipment for lithium battery production, in particular to a laser welding device for a lithium battery CCS acquisition board, which can be used for conveniently taking out a filter element for cleaning and replacing, ensuring the normal use of the filter element and avoiding influencing the filtering effect. Comprising a protection box, the center of the top of the protection box fixedly communicates with an air outlet cylinder, a connecting ring is integrally and fixedly arranged at the top end of an inner cylinder, the inner cylinder is sleeved with the air outlet cylinder, a fan is fixedly installed in the inner cylinder, and three sets of supporting plates are annularly and fixedly arranged at the top end of the outer wall of the air outlet cylinder at equal intervals; the three groups of bolt columns penetrate through the three groups of bolt holes respectively, the three groups of bolt columns are sleeved with lock nuts in a screwed mode, the bottom ends of the three groups of lock nuts are pressed on the three groups of lug plates respectively, an annular sinking groove is formed in the bottom end of the inner cylinder, two groups of L-shaped elastic blocking pieces are symmetrically and fixedly connected to the bottom end of the inner cylinder, and a filter element is clamped in the annular sinking groove through matching of the two groups of L-shaped elastic blocking pieces.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding equipment for lithium battery production, in particular to a laser welding device for a lithium battery CCS collection plate. Background Art

[0002] The CCS integrated busbar is part of a vehicle's BMS power system. Its FPC replaces the power battery's acquisition line. Previously, the acquisition line used a traditional copper wire harness solution, consisting of copper wire surrounded by plastic. Each harness connected to the battery pack reached a single electrode. When the power battery pack has a high current signal, multiple harnesses are required, which takes up a lot of space. Currently, many battery factories use automated assembly lines to produce lithium batteries during the battery module production process. One step in this automated lithium battery production line requires laser welding of the lithium battery CCS acquisition board. This laser welding process produces a large amount of smoke, 95% of which comes from particles produced by burning objects, and 5% is harmful gases produced by volatilization. Although existing technologies use various filter elements and screens to treat the smoke, particulate matter in the smoke will adhere to the filter screen, affecting the filter's filtration efficiency over time. These particulate matter can be recycled as raw materials, but simply replacing the filter screen results in a waste of resources.

[0003] After searching, the patent publication number CN219336402U discloses a lithium battery CCS acquisition board laser welding automation device, including a lithium battery CCS acquisition board laser welding automation production line, the upper surface of the lithium battery CCS acquisition board laser welding automation production line is fixedly installed with laser welding equipment, the upper surface of the lithium battery CCS acquisition board laser welding automation production line is located outside the lithium battery CCS acquisition board laser welding automation production line and is fixedly installed with a protective device. By installing the protective device, the utility model can process the smoke generated by the laser welding equipment when it is working, and collect the particles in the smoke inside the collection box for recycling and reuse, so as to avoid the particulate smoke from being absorbed by the human body after being released. By installing the elastic block and the vibration motor, the particulate matter on the surface of the metal filter can be cleaned, thereby improving the filtering effect of the metal filter.

[0004] However, the above patent solution still has certain disadvantages. In this solution, the fan is fixedly installed inside the outlet pipe, and the filter element is fixedly installed inside the outlet pipe and is located below the fan. Although separated by a metal filter, there will still be a lot of dust and impurities on the filter element after long-term use. The filter element is fixedly installed in the outlet pipe and cannot be removed, so the filter element cannot be cleaned or replaced, affecting the use and filtering effect of the filter element. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a laser welding device for a lithium battery CCS collection plate, which can facilitate the removal of a filter element for cleaning and replacement, ensure the normal use of the filter element, and avoid affecting the filtering effect.

[0006] Technical Solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a laser welding device for a lithium battery CCS collection plate, comprising a protective box and a disassembly structure, wherein the top center of the protective box is fixedly connected to a gas outlet, the disassembly structure comprises an inner tube, the top of the inner tube is fixedly provided with a connecting ring in an integrated manner, the inner tube is sleeved in the gas outlet, a fan is fixedly installed inside the inner tube, the connecting ring rests against the top of the gas outlet, three groups of ear plates are fixedly provided with annularly equidistant on the outer wall of the connecting ring, the three groups of ear plates are all provided with bolt holes, and the top of the outer wall of the gas outlet is fixedly provided with three groups of support plates at annularly equidistant, the three groups of support plates are all fixed with bolt columns, the three groups of bolt columns respectively pass through the three groups of bolt holes, the three groups of bolt columns are threaded with lock nuts, and the bottom ends of the three groups of lock nuts are respectively pressed on the three groups of ear plates, the bottom end of the inner tube is provided with an annular groove, and the bottom end of the inner tube is symmetrically fixedly connected with two groups of L-shaped elastic baffles, and a filter element is mounted in the annular groove through the cooperation of the two groups of L-shaped elastic baffles.

[0008] Preferably, an annular sealing gasket is sleeved on the inner cylinder.

[0009] Preferably, two groups of hand rings are fixedly provided on the outer wall of the connecting ring in a bilaterally symmetrical manner.

[0010] Preferably, anti-loosening washers are fixedly provided at the bottom ends of the two groups of lock nuts.

[0011] Preferably, the two groups of lock nuts are both butterfly nuts.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: when in use, the inner cylinder is stably installed in the air outlet tube through the cooperation of the lock nut and the bolt column, the connecting ring is against the top of the air outlet tube, and the fan is located inside the inner cylinder. When the filter element needs to be cleaned or replaced, the lock nut is unscrewed, and then the inner cylinder is lifted out of the air outlet tube through the connecting ring. After the inner cylinder is lifted out, the L-shaped elastic baffle on the left is pushed downward to bend the L-shaped elastic baffle on the left downward, thereby releasing the obstruction to the left part of the filter element, and then the left part of the filter element is taken out from the annular sink , then move the L-shaped elastic baffle on the right side to bend the L-shaped elastic baffle on the right side downward, releasing the obstruction to the right part of the filter element, and then the right part of the filter element can be taken out from the annular sink groove, thereby removing the annular sink groove as a whole for cleaning and replacement. After cleaning or replacement, install the filter element, and then install the inner tube back into the outlet tube, so that the ear plate is put on the bolt hole, and tighten it with the lock nut to fix the connecting ring. This makes it easy to take out the filter element for cleaning and replacement, ensuring the normal use of the filter element and avoiding affecting the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an axonometric structural diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of a partial axonometric cross-sectional structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the axonometric structure of the punching bag in the utility model;

[0016] Figure 4 This is a schematic diagram of the axonometric structure of the inner cylinder in the utility model;

[0017] Figure 5 This utility model Figure 4 Bottom axonometric structural diagram;

[0018] Markings in the attached figure: 1. Protective box; 2. Exhaust pipe; 3. Fan; 4. Inner tube; 5. Connecting ring; 6. Ear plate; 7. Bolt hole; 8. Support plate; 9. Bolt column; 10. Lock nut; 11. Annular groove; 12. L-shaped elastic baffle; 13. Filter element; 14. Ring-shaped sealing gasket; 15. Hand ring; 16. Anti-loosening gasket. DETAILED DESCRIPTION

[0019] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] Example

[0021] See also Figure 1-Figure 5The utility model is a laser welding device for a lithium battery CCS collection plate, comprising a protective box 1, wherein the top center of the protective box 1 is fixedly connected to a gas outlet 2, a connecting ring 5 is fixedly arranged on the top of the inner tube 4, the inner tube 4 is sleeved in the gas outlet 2, a fan 3 is fixedly installed inside the inner tube 4, the connecting ring 5 is against the top of the gas outlet 2, and three groups of ear plates 6 are fixedly arranged on the outer wall of the connecting ring 5 at equal intervals, and bolt holes 7 are provided on the three groups of ear plates 6, and three groups of support plates 8 are fixedly arranged on the top of the outer wall of the gas outlet 2 at equal intervals. 8 are fixed with bolt columns 9, three groups of bolt columns 9 pass through three groups of bolt holes 7 respectively, and the three groups of bolt columns 9 are threaded with lock nuts 10. The bottom ends of the three groups of lock nuts 10 are pressed tightly on the three groups of ear plates 6 respectively. The bottom end of the inner cylinder 4 is provided with an annular groove 11, and the bottom end of the inner cylinder 4 is symmetrically fixedly connected with two groups of L-shaped elastic baffles 12. The filter element 13 is mounted in the annular groove 11 through the cooperation of the two groups of L-shaped elastic baffles 12. When in use, the inner cylinder 4 is stably installed in the outlet tube 2 through the cooperation of the lock nut 10 and the bolt column 9, and the connecting ring 5 The blower 3 is located inside the inner tube 4 and is against the top of the outlet tube 2. When the filter element 13 needs to be cleaned or replaced, the lock nut 10 is unscrewed, and then the inner tube 4 is raised from the outlet tube 2 through the connecting ring 5. After the inner tube 4 is raised, the L-shaped elastic baffle 12 on the left is dialed downward to bend the L-shaped elastic baffle 12 on the left downward to release the obstruction to the left part of the filter element 13. Then, the left part of the filter element 13 is taken out from the annular sink 11, and then the L-shaped elastic baffle 12 on the right is dialed to bend the L-shaped elastic baffle 12 on the right. The sheet 12 bends downward to remove the obstruction to the right side of the filter element 13, so that the right side of the filter element 13 can be taken out from the annular sink 11, thereby removing the annular sink 11 as a whole for cleaning and replacement. After cleaning or replacement, the filter element 13 is installed, and the inner tube 4 is installed back into the outlet tube 2, so that the ear plate 6 is sleeved on the bolt hole 7 and tightened by the lock nut 10 to fix the connecting ring 5. This makes it easy to take out the filter element for cleaning and replacement, ensure the normal use of the filter element, and avoid affecting the filtering effect.

[0022] The inner tube 4 is sleeved with an annular sealing gasket 14 ; by providing the annular sealing gasket 14 , when the inner tube 4 is installed, the contact between the connecting ring 5 and the air outlet tube 2 can be made tighter, thereby improving the sealing performance.

[0023] Two groups of hand rings 15 are fixedly provided on the outer wall of the connecting ring 5 in a bilaterally symmetrical manner. By providing the hand rings 15 , the connecting ring 5 can be more convenient to take and put.

[0024] Anti-loosening washers 16 are fixedly provided at the bottom ends of the two groups of lock nuts 10; by providing the anti-loosening washers 16, loosening can be prevented after the lock nuts 10 are tightened.

[0025] The two sets of lock nuts 10 are both butterfly nuts; by using butterfly nuts, it is more convenient for workers to tighten them.

[0026] The present invention relates to a laser welding device for a lithium battery CCS collection plate. The working principle of the device is that when in use, the inner cylinder 4 is stably installed in the air outlet tube 2 through the cooperation of the lock nut 10 and the bolt column 9. The connecting ring 5 is against the top of the air outlet tube 2. The fan 3 is located inside the inner cylinder 4. When the filter element 13 needs to be cleaned or replaced, the lock nut 10 is unscrewed, and then the inner cylinder 4 is raised from the air outlet tube 2 through the connecting ring 5. After the inner cylinder 4 is raised, the L-shaped elastic baffle 12 on the left is pushed downward to bend the L-shaped elastic baffle 12 on the left downward to release the left side of the filter element 13. Part of the obstruction, then the left part of the filter element 13 is taken out from the annular sink 11, and then the L-shaped elastic baffle 12 on the right is dialed to bend the L-shaped elastic baffle 12 on the right side downward, releasing the obstruction on the right part of the filter element 13, and the right part of the filter element 13 can be taken out from the annular sink 11, thereby removing the annular sink 11 as a whole for cleaning and replacement. After cleaning or replacement, install the filter element 13, and then install the inner cylinder 4 back into the outlet pipe 2, so that the ear plate 6 is set on the bolt hole 7, and tightened by the lock nut 10 to fix the connecting ring 5.

[0027] The utility model is a lithium battery CCS collection board laser welding device, and its installation method, connection method or setting method are all common mechanical methods, and can be implemented as long as they can achieve their beneficial effects; the fan of the lithium battery CCS collection board laser welding device of the utility model is purchased on the market and belongs to the existing technology. Technical personnel in this industry only need to install and operate it according to the instruction manual that comes with it. In addition, the protective box and the exhaust bag in this application are quoted from a lithium battery CCS collection board laser welding automation device disclosed in patent publication number CN219336402U. This application only improves the installation part of the filter element, and the other specific structures have not changed. In addition, the remaining structures and working principles of the protective box and the exhaust bag have been described in detail in the disclosed patent, so no excessive details will be given here.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A laser welding device for a lithium battery CCS collection board, comprising a protective box (1), characterized in that: It also includes disassembly and assembly of structures; A protective box (1), wherein the center of the top of the protective box (1) is fixedly connected to a gas outlet (2); The disassembly and assembly structure comprises an inner tube (4), a connecting ring (5) is fixedly provided at the top of the inner tube (4), the inner tube (4) is sleeved in the air outlet tube (2), a fan (3) is fixedly installed inside the inner tube (4), the connecting ring (5) is against the top of the air outlet tube (2), three groups of ear plates (6) are fixedly provided at an annular distance on the outer wall of the connecting ring (5), and bolt holes (7) are provided on the three groups of ear plates (6), and three groups of support plates (8) are fixedly provided at an annular distance on the top of the outer wall of the air outlet tube (2). Bolt columns (9) are fixedly provided on the plate (8), and three groups of bolt columns (9) pass through the three groups of bolt holes (7) respectively. Lock nuts (10) are threadedly provided on the three groups of bolt columns (9), and the bottom ends of the three groups of lock nuts (10) are pressed tightly on the three groups of ear plates (6) respectively. An annular groove (11) is provided at the bottom end of the inner cylinder (4), and two groups of L-shaped elastic baffles (12) are symmetrically fixedly connected to the bottom end of the inner cylinder (4). A filter element (13) is mounted in the annular groove (11) through the cooperation of the two groups of L-shaped elastic baffles (12).

2. The laser welding device for lithium battery CCS collection board according to claim 1, characterized in that: An annular sealing gasket (14) is sleeved on the inner cylinder (4).

3. The laser welding device for lithium battery CCS collection board according to claim 2, characterized in that: Two groups of hand rings (15) are fixedly provided on the outer wall of the connecting ring (5) in a bilaterally symmetrical manner.

4. The laser welding device for lithium battery CCS collection board according to claim 3, characterized in that: The bottom ends of the two groups of lock nuts (10) are both fixed with anti-loosening washers (16).

5. The laser welding device for lithium battery CCS collection board according to claim 4, characterized in that: The two groups of lock nuts (10) are both butterfly nuts.

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