Tab shaping device of battery cell

Abstract

The utility model relates to the technical field of new energy batteries, in particular to a pole lug shaping device of a battery cell, the pole lug shaping device of the battery cell comprises a driving assembly, a roll shaft assembly and a bearing plate, in the pole lug shaping device of the battery cell, the bearing plate is used for placing a pole lug of the battery cell, and the roll shaft assembly and the bearing plate clamp the pole lug; and the roller shaft assembly is connected with the driving assembly, and the driving assembly drives the roller shaft assembly to move along the surface of the pole lug to shape the pole lug, so that the problem that the pole lug is damaged due to the fact that the pole lug is manually beaten to achieve the shaping purpose traditionally is solved.

Description

Technical Field

[0001] The present application relates to the field of new energy battery technology, and in particular to a tab shaping device for a battery cell. Background Art

[0002] Tabs are a crucial component in lithium-ion batteries. They serve as metal conductors that connect the positive and negative electrodes to the battery cell, ensuring conductivity, securing the chip, and preventing short circuits. During battery manufacturing, the negative and positive electrodes need to be bonded to the chip, and the tabs, as the connection point, require strict quality control to ensure battery safety and stability.

[0003] Tabs commonly used in battery cells are mostly thin metal sheets. During production, these tabs are easily deformed by external forces, impacting cell testing and shipping yields. Therefore, tab shaping is necessary to ensure proper cell shipment. Traditional tab shaping often relies on manual tapping, which can easily damage the tabs and affect their appearance. Utility Model Content

[0004] The present application provides a tab shaping device for a battery cell, which aims to solve the problem that the tab is easily damaged when the tab is manually struck to achieve the shaping purpose in the traditional method.

[0005] In order to solve the above technical problems, the present application proposes a tab shaping device for a battery cell, which includes: a driving assembly, a roller assembly, and a carrying plate;

[0006] Among them, the supporting plate is used to place the pole tab of the battery cell, the roller assembly and the supporting plate clamp the pole tab, the roller assembly is connected to the driving assembly, and the driving assembly is used to drive the roller assembly to move along the surface of the pole tab to shape the pole tab.

[0007] Furthermore, the roller assembly includes a first fixed block and a roller, the roller and the bearing plate clamp the tab, the roller is installed based on the first fixed block, and the first fixed block is connected to the driving assembly.

[0008] Furthermore, the roller assembly also includes a second fixed block and a first threaded rod, the roller is installed on the second fixed block, the first fixed block is provided with a movement space, the second fixed block is arranged in the movement space, the first threaded rod passes through the movement space and is threadedly assembled with the first fixed block, the second fixed block is connected to the first threaded rod, and the first threaded rod is used to drive the roller close to and away from the supporting plate.

[0009] Furthermore, the roller assembly further includes a first guide rail and a first slider, the first guide rail is mounted on the first fixed block, the first slider is mounted on the second fixed block, and the first slider is slidably assembled with the first guide rail.

[0010] Furthermore, the roller assembly further includes a roller and a connecting rod, one end of the connecting rod is connected to the second fixed block, and the other end is rotatably assembled with the roller, and the roller and the supporting plate clamp the tab.

[0011] Furthermore, the driving assembly includes a driving motor, a second threaded rod and a driving block, the driving motor is used to drive the second threaded rod to rotate, the driving block is threadedly assembled with the second threaded rod, and the driving block is fixedly connected to the first fixing block.

[0012] Furthermore, the tab shaping device for the battery cell further includes a storage platform, which is arranged adjacent to the supporting plate and is used for placing the battery cell.

[0013] Furthermore, the tab shaping device for the battery cell further includes a second slider and a second guide rail, the second slider is slidably assembled with the second guide rail, and the second slider is fixedly connected to the first fixing block.

[0014] Furthermore, the supporting plate includes a first supporting surface and a second supporting surface, the first supporting surface and the second supporting surface are parallel, the first supporting surface is used to place the tab, and the second guide rail is fixedly mounted on the second supporting surface.

[0015] Furthermore, the tab shaping device for the battery cell further includes a protection box, in which the second threaded rod and the driving block are arranged.

[0016] The beneficial effect of the present application is that in the tab shaping device for the battery cell provided in the present application, the drive assembly and the roller assembly are connected. After the roller assembly and the supporting plate clamp the tab, the drive assembly drives the roller assembly to move along the surface of the tab, so that the roller assembly rolls over the surface of the tab to shape the tab, that is, the tab shaping can be achieved through a simple, low-cost mechanical structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without inventive efforts. Among them:

[0018] Figure 1This is a schematic diagram of the three-dimensional structure of a tab shaping device for a battery cell according to one embodiment of the present utility model;

[0019] Figure 2 This is a side view of a tab shaping device for a battery cell according to an embodiment of the present invention;

[0020] Figure 3 It is a side view of the tab shaping device for a battery cell from another perspective according to one embodiment of the present invention.

[0021] Explanation of the accompanying drawings: 100, drive assembly; 110, drive motor; 120, second threaded rod; 130, drive block; 131, threaded through hole; 200, roller assembly; 210, connecting rod; 220, roller; 230, first fixed block; 240, second fixed block; 241, mounting hole; 250, first threaded rod; 300, bearing plate; 310, first bearing surface; 320, second bearing surface; 400, storage table; 500, second guide rail; 510, second slider; 600, protective box; 610, first fixed plate; 620, second fixed plate; 630, third fixed plate. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0023] Those skilled in the art will understand that, unless otherwise stated, the singular forms "a", "an", "above", and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of this application refers to the presence of features, integers, steps, operations, elements, modules, modules and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, modules, modules, components and / or groups thereof. It should be understood that when we refer to an element as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. In addition, "connected" or "coupled" as used herein may include wireless connections or wireless couplings. The term "and / or" used herein includes all or any module and all combinations of one or more associated listed items.

[0024] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with their meanings in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0025] like Figure 1 As shown, the present application provides a tab shaping device for a battery cell, which includes a drive assembly 100, a roller assembly 200, and a carrier plate 300. The carrier plate 300 is used to place the tab of the battery cell. The roller assembly 200 and the carrier plate 300 clamp the tab, and the roller assembly 200 is connected to the drive assembly 100. The drive assembly 100 drives the roller assembly 200 to move along the surface of the tab to shape the tab.

[0026] In one embodiment, the roller assembly 200 includes a connecting rod 210 and a roller 220. The connecting rod 210 is cylindrical and arranged horizontally. The roller 220 is cylindrical and rotatably assembled with the end of the connecting rod 210 away from the drive assembly. The supporting plate 300 has a first supporting surface 310. The first supporting surface 310 is a horizontal surface. The connecting rod 210 is parallel to the first supporting surface 310. The tab is placed on the first supporting surface 310. The roller 220 and the first supporting surface 310 clamp the tab together. The drive assembly 100 is connected to the roller assembly 200. The drive assembly 100 can drive the roller assembly 200 to reciprocate in the horizontal direction, so that the roller 220 can repeatedly roll over the tab to shape the tab.

[0027] like Figure 1 and Figure 3 As shown, the driving assembly 100 includes a driving motor 110, a driving block 130 and a second threaded rod 120. The second threaded rod 120 is connected to the driving motor 110. The driving motor 110 is used to drive the second threaded rod 120 to rotate. The driving block 130 is provided with a threaded through hole 131. The driving block 130 is threadedly assembled with the second threaded rod 120 through the threaded through hole 131.

[0028] In one specific embodiment, the second threaded rod 120 is cylindrical, horizontally disposed, and spaced apart from the supporting plate 300. The first drive motor 110 is fixedly connected to one end of the second threaded rod 120, and the drive motor 110 is capable of driving the second threaded rod 120 in forward and reverse rotation. The drive block 130 is rectangular, and a threaded through hole 131 is provided at the center of the drive block 130. The threaded through hole 131 passes through the drive block 130 and matches the second threaded rod 120. The drive block 130 is threadedly assembled with the second threaded rod 120 through the threaded through hole 131. When the second threaded rod 120 rotates, the drive block 130 can move horizontally along the second threaded rod 120.

[0029] like Figure 2 As shown, the roller assembly 200 further includes a first fixing block 230 and a first threaded rod 250 . The first threaded rod 250 is threadedly assembled with the first fixing block 230 , and the first fixing block 230 is fixedly connected to the driving block 130 .

[0030] In one specific embodiment, the first fixing block 230 is in the shape of a square frame, with an opening at the lower end thereof. The space enclosed by the first fixing block 230 serves as a movement space. The first fixing block 230 is fixedly connected to a side of the driving block 130 near the carrier plate 300, such that the first fixing block 230 and the driving block 130 are linked. A first threaded rod 250 is vertically disposed at the position of the axis of symmetry of the first fixing block 230, extends through the movement space, and is threadedly assembled with the first threaded rod 250.

[0031] like Figure 1 and Figure 3 As shown, the roller assembly 200 further includes a second fixing block 240 , which is connected to the first threaded rod 250 .

[0032] In a specific embodiment, the second fixed block 240 is in the shape of a rectangular parallelepiped, and the second fixed block 240 is arranged in the motion space. A mounting hole 241 is provided at the center position of the second fixed block 240. The mounting hole 241 is circular, and the direction of the mounting hole 241 is perpendicular to the direction of the second threaded rod 120. The diameter of the mounting hole 241 matches the diameter of the connecting rod 210. The connecting rod 210 passes through the mounting hole 241, and the connecting rod 210 is fixedly assembled with the second fixed block 240 through the mounting hole 241, so that the connecting rod 210 can be linked with the second fixed block 240.

[0033] The second fixed block 240 is fixedly connected to the lower end of the first threaded rod 250, so that the second fixed block 240 and the first threaded rod 250 are linked. When the first threaded rod 250 is manually rotated, the first threaded rod 250 can rise and fall relative to the first fixed block 230, so that the second fixed block 240 drives the roller 220 to rise and fall, so as to adjust the distance between the roller 220 and the first bearing surface 310 to adapt to the different thicknesses of the tabs.

[0034] like Figure 1 As shown, the roller assembly further includes a first guide rail and a first slider. The first guide rail is mounted on the first fixed block, the first slider is mounted on the second fixed block, and the first slider is slidably assembled with the first guide rail.

[0035] In a specific embodiment, the first guide rail and the first threaded rod are arranged in the same direction, and there are two first guide rails. The two first guide rails are symmetrically arranged on both sides of the second fixed block 240, and the first guide rail and the first fixed block 230 are fixedly installed. A first slider is provided on each first slide rail, and the first slider is slidably assembled with the first guide rail, and the first slider is fixedly connected to the second fixed block 240. The arrangement of the first guide rail and the first slider ensures that when the first threaded rod is rotated, the second fixed block 240 can only rise and fall along the first guide rail, and will not rotate with the first threaded rod 250.

[0036] like Figure 1 As shown, the tab shaping device for the battery cell further includes a placement table 400 . The placement table 400 is disposed adjacent to the carrier plate 300 , and the battery cell is placed on the placement table 400 .

[0037] In a specific embodiment, the storage platform 400 is arranged on a side of the supporting plate 300 away from the roller assembly 200. The storage platform 400 is arranged adjacent to the supporting plate 300. The storage platform 400 is in the shape of a rectangular parallelepiped. The upper surface of the storage platform 400 is parallel to the first supporting surface 310, and the horizontal height of the upper surface of the storage platform 400 is approximately equal to the horizontal height of the first supporting surface 310. The storage platform 400 is used to place battery cells.

[0038] like Figure 3 As shown, the tab shaping device for the battery cell further includes a second slider 510 and a second guide rail 500 . The second slider 510 is fixedly connected to the first fixing block 230 , and the second slider 510 and the second guide rail 500 are slidably assembled.

[0039] In one embodiment, the second guide rail 500 and the second threaded rod 120 are arranged in the same direction, the bearing plate 300 is L-shaped, and a second bearing surface 320 is further provided on the bearing plate 300. The second bearing surface 320 is a horizontal surface, parallel to the first bearing surface 310, and the horizontal height of the second bearing surface 320 is lower than that of the first bearing surface 310. The second guide rail 500 is fixedly mounted on the second bearing surface 320, and a plurality of second sliders 510 are provided, which are slidably assembled with the second guide rail 500. The upper surface of the second slider 510 is fixedly mounted on the lower surface of the first fixed block 230, so that the first fixed block 230 can move translationally with the driving block 130.

[0040] like Figure 2 and Figure 3 As shown, the tab shaping device for the battery cell further includes a protection box 600 , and the second threaded rod 120 is disposed in the protection box 600 .

[0041] In one specific embodiment, the protective box 600 includes a first fixing plate 610, a second fixing plate 620, and a third fixing plate 630. The first fixing plate 610, the second fixing plate 620, and the third fixing plate 630 are all rectangular and spaced apart in parallel. The second threaded rod 120 passes through the first and second fixing plates 610, 620 and is fixed by the first and second fixing plates 610, 620. The third fixing plate 630 connects the first and second fixing plates 610, 620. The first, second, and third fixing plates 610, 620, and the carrier plate 300 together form a rectangular container. The second threaded rod 120 and the driving block 130 move within the protective box 600 to reduce safety hazards during operation.

[0042] To sum up, in the actual working process, the battery cell is placed on the storage table 400 so that the tab of the battery cell is located on the first bearing surface 310 of the bearing plate 300. The roller assembly 200 and the first bearing surface 310 clamp the tab and fix it. By adjusting the first threaded rod 250, the horizontal height of the roller assembly 200 can be adjusted to adapt to tabs of different thicknesses, thereby improving the utilization rate of the device and saving production costs. The driving motor 110 drives the second threaded rod 120 to rotate forward and reverse, so that the driving block 130 reciprocates along the direction of the second threaded rod 120, and then the roller assembly 200 connected to the driving block 130 reciprocates along the upper surface of the pole ear, so that the roller assembly 200 can repeatedly roll over the surface of the pole ear to achieve the purpose of shaping the pole ear. The pole ear shaping device of the battery cell provided in the present application can avoid the problem of tearing of the welding point between the pole ear and the battery cell due to manual tapping for shaping the pole ear. At the same time, compared with traditional semi-automatic shaping equipment, the pole ear shaping device of the battery cell provided in the present application has a simple structure, low cost, and low requirements for the operator.

[0043] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A tab shaping device for a battery cell, characterized in that: include: Drive assembly, roller assembly, load-bearing plate; Among them, the supporting plate is used to place the pole tab of the battery cell, the roller assembly and the supporting plate clamp the pole tab, the roller assembly is connected to the driving assembly, and the driving assembly is used to drive the roller assembly to move along the surface of the pole tab to shape the pole tab.

2. The battery tab shaping device according to claim 1, characterized in that: The roller assembly includes a first fixed block and a roller. The roller and the bearing plate clamp the tab. The roller is installed based on the first fixed block. The first fixed block is connected to the driving assembly.

3. The battery tab shaping device according to claim 2, characterized in that: The roller assembly also includes a second fixed block and a first threaded rod. The roller is installed on the second fixed block. The first fixed block is provided with a movement space. The second fixed block is arranged in the movement space. The first threaded rod passes through the movement space and is threadedly assembled with the first fixed block. The second fixed block is connected to the first threaded rod. The first threaded rod is used to drive the roller close to and away from the supporting plate.

4. The battery tab shaping device according to claim 3, characterized in that: The roller assembly further includes a first guide rail and a first slider. The first guide rail is mounted on the first fixed block. The first slider is mounted on the second fixed block. The first slider is slidably assembled with the first guide rail.

5. The battery tab shaping device according to claim 3, characterized in that: The roller assembly further comprises a connecting rod, one end of which is connected to the second fixed block, and the other end of which is rotatably assembled with the roller.

6. The tab shaping device for a battery cell according to claim 2, wherein: The driving assembly includes a driving motor, a second threaded rod and a driving block. The driving motor is used to drive the second threaded rod to rotate. The driving block is threadably assembled with the second threaded rod, and the driving block is fixedly connected to the first fixing block.

7. The battery tab shaping device according to claim 1, characterized in that: The tab shaping device for the battery cell further includes a storage platform, which is arranged adjacent to the supporting plate and is used for placing the battery cell.

8. The battery tab shaping device according to claim 2, characterized in that: The tab shaping device for the battery cell further includes a second slider and a second guide rail, the second slider is slidably assembled with the second guide rail, and the second slider is fixedly connected to the first fixing block.

9. The battery tab shaping device according to claim 8, characterized in that: The bearing plate includes a first bearing surface and a second bearing surface, the first bearing surface and the second bearing surface are parallel, the first bearing surface is used to place the tab, and the second guide rail is fixedly installed on the second bearing surface.

10. The battery tab shaping device according to claim 6, characterized in that: The tab shaping device for the battery cell further includes a protection box, in which the second threaded rod and the driving block are arranged.

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