Soft package battery tab correction mechanism
By designing a soft -bag battery pole ear correction mechanism that includes polar ear pressure enters and polar ears, it solves the problem of poor and skew the polar ear center in the traditional packaging process. It reduced the battery scrap rate and increased product advantages.
Patent Information
- Application Number
- CN202421044585.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-14
AI Technical Summary
In the traditional soft-pack lithium-ion battery packaging process, the bare cell electrode ear center distance is poor and the extreme ear is skewed, resulting in the extreme ear skewed after packaging, increasing the production defect rate and battery cell scrap rate.
Design a soft -packed battery polar ear correction mechanism, including the upper head and lower sealed head. The polar ear pressure is installed at the bottom of the head. The entry component includes polar ear pressure blocks and polar ear pressing feet, combined with spring and adjustment cylinder, accurate positioning and correction of the polar ear position.
Through polar ear correction mechanisms, the center distance of the polar ear -shaped shape meets the production requirements, reduces the battery waste caused by polar ear problems, and improves product advantages.
Smart Images
Figure CN222402865U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery production and preparation, and in particular to a pole ear correction mechanism for a soft-pack battery. Background Art
[0002] The key process in the production and preparation of soft-pack lithium-ion batteries is the packaging process, which is usually to wrap the bare battery cell with aluminum-plastic film after punching the shell. The traditional packaging process usually involves the upper and lower heads running up and down under the action of a cylinder or servo motor to heat and package the battery. The traditional process has the following defects: the center distance of the bare battery cell tabs is poor before packaging, and the tabs are skewed, which causes the tabs to be skewed after packaging; during the packaging process, the tabs are skewed after the upper and lower heads are pressurized; the tabs are skewed during the packaging loading process. The above defects lead to a high production defect rate and even the problem of unable to produce normally.
[0003] Therefore, it is urgent to design a tab correction mechanism that can make the center distance of the tab shape meet production requirements and improve the product quality rate. Utility Model Content
[0004] The main purpose of the utility model is to provide a soft-pack battery tab correction mechanism to solve the problems existing in the prior art.
[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0006] A tab correction mechanism for a soft-pack battery comprises an upper head and a lower head, wherein a tab pressing assembly is installed at the bottom of the upper head, two tab support blocks are arranged above the lower head, and tab support grooves are arranged at the ends of the tab support blocks. The tab pressing assembly comprises a tab pressing block and a tab pressing foot, a spring is fixedly connected to the top of the tab pressing block, and the top end of the spring is fixedly connected to the upper head, and the two tab pressing feet are arranged in parallel at the bottom end of the tab pressing block, and the tab pressing feet match the tab support grooves.
[0007] Furthermore, the tab pressing block and the tab pressing foot are an integrally formed structure.
[0008] Furthermore, the upper cover is provided with a through hole, the top of the through hole is fixedly connected with a cover plate, and the top end of the spring is fixedly connected to the bottom end of the cover plate.
[0009] Furthermore, one end of the pole lug support block away from the pole lug support groove extends toward the outside of the lower head and is connected to an adjusting cylinder.
[0010] Furthermore, a connection block is fixedly provided at the output end of the adjusting cylinder, and the top of the connection block is connected to the pole lug support block.
[0011] Furthermore, the tab support block is a Z-shaped structure, including a vertical portion and horizontal portions located at both ends of the vertical portion, the horizontal portion includes a first horizontal portion and a second horizontal portion, the tab support groove is arranged on the top of the first horizontal portion, and the second horizontal portion is fixedly connected to the connecting block.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] By using the tab press-in assembly in conjunction with the tab bracket on the tab support block, the center distance of the tab shape can meet production requirements, thereby reducing the scrapping of battery cells due to tab problems and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0015] Figure 2 It is a schematic diagram of the structure of the pole lug support block of the utility model.
[0016] Figure 3 It is a schematic diagram of the structure of the tab press-in assembly of the utility model.
[0017] Figure 4 It is a cross-sectional view of the through hole of the upper head of the utility model.
[0018] Figure 5 A schematic diagram of the upper head structure of the utility model.
[0019] Figure 6 Schematic diagram of the lower head and battery structure of the utility model.
[0020] Among them, 1-upper head, 11-cover plate, 12-through hole, 13-bolt, 2-lower head, 3-pole ear support block, 31-pole ear bracket, 32-first horizontal part, 33-second horizontal part, 34-vertical part, 4-pole ear pressing assembly, 41-pole ear pressing block, 42-pole ear pressing foot, 5-spring, 6-adjusting cylinder, 7-connecting block, 8-battery, 9-pole ear. DETAILED DESCRIPTION
[0021] The technical solution of the utility model is further described below through the accompanying drawings and embodiments.
[0022] Combination Figures 1 to 6The utility model provides a tab correction mechanism for a soft-pack battery, comprising an upper head 1 and a lower head 2, a tab pressing assembly 4 is installed at the bottom of the upper head 1, two tab support blocks 3 are arranged above the lower head 2, and a tab support groove 31 is arranged at the end of the tab support block 3, the tab pressing assembly 4 comprises a tab pressing block 41 and a tab pressing foot 42, a spring 5 is fixedly connected to the top of the tab pressing block 41, and the top end of the spring 5 is fixedly connected to the upper head 1, and the two tab pressing feet 42 are arranged in parallel at the bottom end of the tab pressing block 41, and the tab pressing feet 42 match the tab bracket 31.
[0023] In this embodiment, during packaging, the tabs 9 of the battery 8 are placed in the tab brackets 31 at the ends of the tab support blocks 3, the tabs are supported to accurately locate the tab center distance and prevent skew, the width of the tab brackets 31 is matched according to the tab width, to avoid the problem of poor tab center distance of the bare cell before packaging and the problem of tab skew during the packaging and loading process; the tabs are pressed into the tab brackets 31 by the tab pressing feet 42 to accurately correct the tab position, to avoid the problem of tab skew after the upper and lower heads are pressurized. Finally, the tab shape center distance meets the production requirements, reduces the scrapping of cells due to tab problems, and improves the product quality rate.
[0024] At the same time, the tab pressing foot 42 can also play a role in leveling the tab when pressing the tab.
[0025] In this embodiment, the tab pressing block 41 and the tab pressing foot 42 are an integrated structure, which is more stable when positioning and pressing the tab.
[0026] In this embodiment, the upper head 1 is provided with a through hole 12, the top of the through hole 12 is fixedly connected with a cover plate 11, and the top of the spring 5 is fixedly connected with the bottom of the cover plate 11. Specifically, the cover plate 11 and the upper head 1 are fixedly connected by bolts 13.
[0027] When working, the function of the spring is to press the tab into the tab bracket to prevent the rigid pressure from damaging it, avoid the problem of battery cell scrapping caused by tab damage, and further improve the product quality rate.
[0028] In this embodiment, one end of the tab support block 3 away from the tab support groove 31 extends toward the outside of the lower head 2 and is connected to an adjustment cylinder 6 .
[0029] The function of adjusting cylinder 6 is to adjust the position of the tab support block.
[0030] Preferably, a connection block 7 is fixedly provided at the output end of the adjusting cylinder 6 , and the top of the connection block 7 is connected to the pole lug support block 3 .
[0031] Preferably, the pole lug support block 3 is a Z-shaped structure, including a vertical portion 33 and horizontal portions located at both ends of the vertical portion 33, the horizontal portion includes a first horizontal portion 32 and a second horizontal portion 34, the pole lug support groove 31 is arranged at the top of the first horizontal portion 32, and the second horizontal portion 34 is fixedly connected to the connecting block 7.
[0032] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.
Claims
1. A soft-pack battery tab correction mechanism, characterized in that: It comprises an upper head and a lower head, a tab pressing assembly is installed at the bottom of the upper head, two tab support blocks are arranged above the lower head, a tab support groove is arranged at the end of the tab support block, the tab pressing assembly comprises a tab pressing block and a tab pressing foot, a spring is fixedly connected to the top of the tab pressing block, the top of the spring is fixedly connected to the upper head, the two tab pressing feet are arranged in parallel at the bottom end of the tab pressing block, and the tab pressing feet match the tab support groove.
2. A soft-pack battery tab correction mechanism as claimed in claim 1, characterized in that: The tab pressing block and the tab pressing foot are an integrally formed structure.
3. A soft-pack battery tab correction mechanism as claimed in claim 1, characterized in that: The upper cover is provided with a through hole, the top of the through hole is fixedly connected with a cover plate, and the top end of the spring is fixedly connected with the bottom end of the cover plate.
4. A soft-pack battery tab correction mechanism as claimed in claim 1, characterized in that: One end of the pole lug support block away from the pole lug support groove extends toward the outer side of the lower head and is connected to an adjusting cylinder.
5. A soft-pack battery tab correction mechanism as claimed in claim 4, characterized in that: A connecting block is fixedly provided at the output end of the adjusting cylinder, and the top of the connecting block is connected to the pole lug supporting block.
6. A soft-pack battery tab correction mechanism as claimed in claim 5, characterized in that: The lug support block is a Z-shaped structure, including a vertical portion and horizontal portions located at both ends of the vertical portion, the horizontal portion includes a first horizontal portion and a second horizontal portion, the lug support groove is arranged on the top of the first horizontal portion, and the second horizontal portion is fixedly connected to the connecting block.