Polymer cell tab welding jig

Abstract

The utility model relates to the technical field of polymer cell tab welding, in particular to a polymer cell tab welding jig which comprises a placing plate, and a cover plate is hinged to the top end of the placing plate. The fixing mechanism capable of fixing and accurately welding the polymer cell tab is arranged at the top end of the placing plate; by arranging the fixing mechanism, a placement groove is matched with a groove, so that the polymer cell tab can be placed, and a mounting block on a placement plate can adjust the positions of a supporting rod and a limiting plate through an adjusting bolt, so that the supporting rod drives the limiting plate and an extrusion block to move downwards to fixedly extrude and fix the tab; the extrusion block performs certain protection on the tabs when the limiting plates extrude the tabs, the supporting plates in the grooves can be used for placing the tabs, the tabs can be fixed through cooperation with the limiting plates, the polymer cell tabs can be limited and fixed, and the welding precision of the polymer cell tabs is improved.

Description

Technical Field

[0001] This utility model relates to the field of polymer battery electrode tab welding technology, and in particular to a polymer battery electrode tab welding fixture. Background Technology

[0002] Tabs are a type of raw material used in lithium-ion polymer batteries. For example, mobile phone batteries, Bluetooth batteries, and laptop batteries all require tabs. During the processing of polymer battery cells, welding fixtures are used to weld the tabs.

[0003] A search of the Chinese patent "Polymer Battery Cell Tab Welding Fixture" (publication number CN208513826U) reveals that this patent uses a rotating cover plate mounted on a base plate. When the cover plate is closed, it covers the product, while the ends of the polymer battery cell tabs to be welded are exposed in the welding fixture. During welding, small particles generated when rosin and flux melt at high temperatures are prevented from splashing onto other parts of the polymer battery cell, thus avoiding defects in the product's appearance. The product is well protected, and manufacturing costs are reduced. While the base plate and cover plate can fix the polymer battery cell during welding, the tabs are prone to displacement, affecting the welding effect and hindering precise welding, ultimately reducing the overall processing efficiency.

[0004] Therefore, a polymer battery cell tab welding fixture is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a polymer battery cell tab welding fixture to solve the above-mentioned problems, thereby improving the inconvenience of accurately welding polymer battery cell tabs.

[0006] This utility model achieves the above-mentioned objectives through the following technical solution: a polymer battery cell tab welding fixture, comprising a placement plate with a cover plate hinged to its top; and a fixing mechanism, which can fix the polymer battery cell tab and perform precise welding, disposed at the top of the placement plate; wherein, the fixing mechanism includes several placement grooves evenly distributed and formed on the inner walls of the placement plate and the cover plate, and several evenly distributed grooves formed at the front end of the inner wall of the placement plate, one end of the grooves communicating with the placement grooves, several evenly arranged mounting blocks slidably connected to the top of the placement grooves, and support rods slidably connected to the inner walls of the mounting blocks, with limiting plates fixedly connected to both sides of the support rods. The placement grooves and grooves cooperate to place and fix the polymer battery cell and the tab, and the support rods on the mounting blocks can drive the limiting plates to move downward to limit and fix the tab, preventing displacement of the tab during welding and improving the welding accuracy of the tab.

[0007] Preferably, the fixing mechanism further includes an adjusting bolt rotatably connected to the top of the mounting block. One end of the adjusting bolt passes through the mounting block and is threadedly connected to the support rod. The mounting block is slidably connected to the inner wall of the placement plate through protrusions on both sides of the bottom. The adjusting bolt, in cooperation with the support rod, can drive the support rod and the two limiting plates to move up and down to fix the electrode tab.

[0008] Preferably, a pressing block is fixedly connected to the bottom end of the limiting plate. The limiting plate can drive the pressing block to move downward to limit the electrode tab. The pressing block has a certain degree of flexibility, which can prevent the limiting plate from damaging the electrode tab when pressing it, thereby improving the device's fixing effect on the electrode tab.

[0009] Preferably, a support plate is fixedly connected to the inner wall of the groove. The support plate can protect the bottom of the tab and cooperate with the limiting plate to fix it.

[0010] Preferably, a protective plate is fixedly connected to the inner wall of the placement groove. The protective plate in the placement groove can limit the polymer cell and prevent the placement plate and cover plate from damaging the polymer cell.

[0011] Preferably, the bottom of the cover plate is fixedly connected with several evenly distributed limiting blocks. The limiting blocks are disposed above the groove and can limit the top of the electrode tab to prevent the electrode tab from shifting during welding.

[0012] Preferably, both sides of the top of the cover plate are threaded with fixing bolts. One end of the fixing bolt passes through the cover plate and is threadedly connected to the placement plate. The two fixing bolts can connect and fix the placement plate and the cover plate.

[0013] The beneficial effects of this utility model are:

[0014] 1. By setting up a fixing mechanism, when welding the electrode tabs, the placement groove and the recess can be used to place the polymer battery cell electrode tabs. The mounting block on the placement plate can be adjusted by adjusting the bolts to adjust the position of the support rod and the limiting plate. This allows the support rod to drive the limiting plate and the extrusion block to move downwards to fix and extrude the electrode tabs, preventing displacement of the electrode tabs during welding. The extrusion block provides some protection when the limiting plate extrudes the electrode tabs. The support plate in the recess can place the electrode tabs and, in conjunction with the limiting plate, fix the electrode tabs. This can limit and fix the polymer battery cell electrode tabs, improving the welding accuracy of the polymer battery cell electrode tabs.

[0015] 2. By setting up a protective plate, limiting blocks, and adjusting bolts, when limiting the polymer battery cell tabs, the placement grooves on the inner walls of the placement plate and cover plate are fixed to the polymer battery cell tabs by the protective plate. The protective plate has a certain degree of flexibility, which can prevent the polymer battery cell tabs from loosening and provide a certain degree of protection when the placement plate and cover plate are fixed to it. The limiting blocks on the cover plate cooperate with the support plate to limit the tabs. The fixing bolts can connect the placement plate and the cover plate together, which can stably fix the polymer battery cell tabs and improve the welding effect of the polymer battery cell tabs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external structure of the present utility model;

[0017] Figure 2 This is a schematic diagram of the fixing mechanism structure of this utility model;

[0018] Figure 3 This is a partial structural diagram of the fixing mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the polymer battery cell limiting structure in the fixing mechanism of this utility model.

[0020] In the diagram: 1. Placement plate; 2. Cover plate; 3. Fixing mechanism; 301. Placement groove; 302. Groove; 303. Mounting block; 304. Support rod; 305. Limiting plate; 306. Adjusting bolt; 307. Extrusion block; 308. Support plate; 309. Protective plate; 310. Limiting block; 311. Fixing bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In practical implementation: such as Figure 1-4 As shown, a polymer battery cell tab welding fixture includes a placement plate 1, with a cover plate 2 hinged to the top of the placement plate 1; and a fixing mechanism 3, which can fix the polymer battery cell tab and perform precise welding, and is disposed at the top of the placement plate 1. The fixing mechanism 3 includes several placement grooves 301 evenly distributed and formed on the inner walls of the placement plate 1 and the cover plate 2. Several grooves 302 evenly distributed are formed at the front end of the inner wall of the placement plate 1. One end of the grooves 302 is connected to the placement grooves 301. Several mounting blocks 303 are slidably connected to the top of the placement grooves 301. Support rods 304 are slidably connected to the inner walls of the mounting blocks 303. Limiting plates 305 are fixedly connected to both sides of the support rods 304.

[0023] like Figure 2 and Figure 3 As shown, the fixing mechanism 3 also includes an adjusting bolt 306 rotatably connected to the top of the mounting block 303. One end of the adjusting bolt 306 passes through the mounting block 303 and is threadedly connected to the support rod 304. The mounting block 303 is slidably connected to the inner wall of the placement plate 1 through protrusions on both sides of the bottom. The bottom end of the limiting plate 305 is fixedly connected to the pressing block 307, and the inner wall of the groove 302 is fixedly connected to the support plate 308. When welding the electrode tab, the polymer battery cell and the electrode tab are placed in the placement groove 301 and the groove 302 respectively. The support plate 308 in the groove 302 can support the electrode tab. The mounting block 303 drives the support rod 304 and the limiting plate 305 to slide to a suitable position. The adjusting bolt 306 can drive the support rod 304 and the pressing block 307 at the bottom of the two limiting plates 305 to move downward to press and fix the electrode tab. The pressing block 307 can fix the electrode tab while also protecting it. It can fix the polymer battery cell electrode tab and improve the welding accuracy of the electrode tab.

[0024] like Figure 4 As shown, a protective plate 309 is fixedly connected to the inner wall of the placement groove 301, and several evenly distributed limiting blocks 310 are fixedly connected to the bottom of the cover plate 2. The limiting blocks 310 are set above the groove 302. Fixing bolts 311 are threadedly connected to both sides of the top of the cover plate 2. One end of the fixing bolt 311 passes through the cover plate 2 and is threadedly connected to the placement plate 1. When the placement plate 1 and the cover plate 2 place the polymer battery tab, the protective plate 309 in the placement groove 301 can limit the polymer battery. The limiting block 310 contacts the top of the tab. As the fixing bolt 311 rotates, the placement plate 1 and the cover plate 2 can be fixed to prevent the tab from shifting during welding.

[0025] In use, multiple polymer battery cell tabs are placed in the placement slots 301 on the placement plate 1, and the tabs are placed in the grooves 302. The cover plate 2 is manually rotated to engage with the placement plate 1. The fixing bolt 311 is manually rotated to connect with the placement plate 1 and the cover plate 2, connecting the placement plate 1 and the cover plate 2 together. When the cover plate 2 fixes the polymer battery cell tabs, the limiting block 310 cooperates with the support plate 308 in the groove 302 to limit the tabs. The mounting block 303 is manually pushed to adjust its position. Then, the adjusting bolt 306 is manually rotated to connect with the support rod 304, which can drive the two limiting plates 305 and the pressing block 307 to move downward to fix the tabs, allowing for precise welding of the tabs.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A polymer battery cell tab welding fixture, characterized in that, include: Placement plate (1), the top of which is hinged to a cover plate (2); The fixing mechanism (3), which can fix the polymer battery cell tabs and perform precise welding, is located at the top of the placement plate (1); The fixing mechanism (3) includes several evenly distributed placement grooves (301) on the inner walls of the placement plate (1) and the cover plate (2). Several evenly distributed grooves (302) are provided at the front end of the inner wall of the placement plate (1). One end of the groove (302) is connected to the placement groove (301). Several evenly arranged mounting blocks (303) are slidably connected to the top of the placement groove (301). Support rods (304) are slidably connected to the inner walls of the mounting blocks (303). Limiting plates (305) are fixedly connected to both sides of the support rods (304).

2. The polymer battery cell tab welding fixture according to claim 1, characterized in that: The fixing mechanism (3) further includes an adjusting bolt (306) rotatably connected to the top of the mounting block (303). One end of the adjusting bolt (306) passes through the mounting block (303) and is threadedly connected to the support rod (304). The mounting block (303) is slidably connected to the inner wall of the placement plate (1) through protrusions on both sides of the bottom.

3. The polymer battery cell tab welding fixture according to claim 1, characterized in that: The bottom end of the limiting plate (305) is fixedly connected to the pressing block (307).

4. The polymer battery cell tab welding fixture according to claim 1, characterized in that: A support plate (308) is fixedly connected to the inner wall of the groove (302).

5. The polymer battery cell tab welding fixture according to claim 1, characterized in that: A protective plate (309) is fixedly connected to the inner wall of the placement slot (301).

6. The polymer battery cell tab welding fixture according to claim 1, characterized in that: The bottom of the cover plate (2) is fixedly connected with several evenly distributed limiting blocks (310), which are positioned above the groove (302).

7. The polymer battery cell tab welding fixture according to claim 1, characterized in that: Both sides of the top of the cover plate (2) are threaded with fixing bolts (311), one end of the fixing bolts (311) passes through the cover plate (2) and is threadedly connected to the placement plate (1).

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