Leveling device for polymer lithium ion battery tabs

Abstract

The utility model relates to the technical field of polymer lithium ion batteries, in particular to a polymer lithium ion battery tab leveling device which comprises a shell and a workbench, the shell is located on one side of the top of the workbench and fixedly connected with the workbench, and a frequency converter is fixedly connected to one side of the top of the workbench. Positioning plates are fixedly connected to the four corners of the top of the workbench, a through hole is formed in the top of the workbench, and a leveling mold is fixedly connected to the bottom of the workbench. The utility model has the advantages of high stability and low safety risk, in the actual use process, through the matched use of the adjusting mechanism, the surface of the battery tab can be flatter and smoother, the contact performance with other battery components is improved, the contact resistance can be reduced, the conductivity and power output of the battery are improved, and the service life of the battery is prolonged. The method can help to remove uneven or convex parts on the surfaces of the battery tabs and avoid the problem of local overpressure or hot spots of the tabs.

Description

Technical Field

[0001] The utility model relates to the technical field of polymer lithium-ion batteries, in particular to a leveling device for a polymer lithium-ion battery tab. Background Art

[0002] The leveling device for polymer lithium-ion battery tabs is a device used in the battery manufacturing process to level the battery tabs. The main purpose of the leveling device is to make the surface of the battery tabs smoother and more consistent, and to make them in closer contact with other battery components, so as to improve the performance and stability of the battery.

[0003] For example, the polymer lithium-ion battery tab leveling device disclosed in publication number CN211125895U has the following beneficial effects: the tab leveling function can ensure the cutting length, ensure that the tab surface is flat and without deformation, ensure that the nickel sheet of the protective plate is fully fitted with the tab plane when the battery is welded with the protective plate, ensure the welding quality, and the method is simple and reasonable, which is convenient for application and promotion. However, the pressure device of the polymer lithium-ion battery tab leveling device is relatively simple and cannot provide accurate and stable pressure control, resulting in uneven pressure distribution, inconsistent shape of the battery tab, and the possibility of pressure concentration or excessive pressure. Unstable pressure control may affect the leveling effect and battery performance, and cannot provide sufficient accuracy and consistency to achieve a high level of leveling accuracy, resulting in some tiny protrusions or uneven parts on the surface of the battery tab, affecting the contact quality and conductive performance of the battery and other components.

[0004] Therefore, there is an urgent need for a polymer lithium-ion battery tab leveling device to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a leveling device for polymer lithium-ion battery tabs, which has the advantages of high stability and low safety risks, and solves the problem that the pressure device of the leveling device for polymer lithium-ion battery tabs is relatively simple and cannot provide accurate and stable pressure control, resulting in uneven pressure distribution.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a polymer lithium-ion battery tab flattening device, comprising a housing and a workbench, wherein the housing is located on one side of the top of the workbench and is fixedly connected to the workbench, a frequency converter is fixedly connected to one side of the top of the workbench, and positioning plates are fixedly connected to the four corners of the top of the workbench, a through hole is formed on the top of the workbench, a flattening mold is fixedly connected to the bottom of the workbench, the top of the flattening mold is connected to the through hole, and a fixing seat is fixedly connected to one side of the inner cavity of the housing;

[0007] The adjustment mechanism includes a motor fixedly connected to the top of the fixed base, one side of the inverter is electrically connected to the motor, the output shaft of the motor is fixedly connected to a disc, one side of the disc is rotatably connected to a movable arm, one side of the movable arm extends to the outside of the shell and is rotatably connected to a connecting frame, one side of the connecting frame is rotatably connected to a pressure roller, and the pressure roller contacts the top of the workbench.

[0008] Preferably, a limiting hole is provided on one side of the shell, one side of the movable arm extends to the outside of the limiting hole, and the movable arm is slidably connected to the inner wall of the limiting hole.

[0009] Preferably, a mounting seat is provided on the surface of the motor, and the bottom of the mounting seat is fixedly connected to the fixing seat.

[0010] Preferably, a guide rod is fixedly connected to one side opposite to the positioning plate, a sliding sleeve is fixedly connected to both sides of the connecting frame, and the surface of the guide rod is slidably connected to the sliding sleeve.

[0011] Preferably, the four corners of the bottom of the workbench are fixedly connected to support bases, and the support bases are symmetrically arranged.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] The utility model has the advantages of high stability and low safety risk. In actual use, through the coordinated use of the adjustment mechanism, the surface of the battery tab can be made flatter and smoother, the contact performance with other battery components can be improved, the contact resistance can be reduced, the conductivity and power output of the battery can be improved, and the unevenness or protrusions on the surface of the battery tab can be removed to avoid local overvoltage or hot spots in the tab. Subsequently, through the setting of the inverter, the speed and power output of the motor can be adjusted according to actual work needs to achieve energy consumption optimization. The operating speed and force of the leveling device can be adjusted according to the specifications and requirements of the battery tab, thereby saving energy and improving the leveling efficiency, and solving the problem that the pressure device of the leveling device of the polymer lithium-ion battery tab is relatively simple and cannot provide accurate and stable pressure control, resulting in uneven pressure distribution. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 It is a schematic diagram of a partial three-dimensional structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the disc and the movable arm of the utility model;

[0017] Figure 4This is a schematic diagram of the three-dimensional structure of the fixing seat, motor and mounting seat of the utility model.

[0018] In the figure: 1. Housing; 2. Fixing seat; 3. Motor; 4. Disc; 5. Moving arm; 6. Connecting frame; 7. Pressure roller; 8. Positioning plate; 9. Mounting seat; 10. Guide rod; 11. Sleeve; 12. Through hole; 13. Leveling mold; 14. Limiting hole; 15. Inverter; 16. Support seat; 17. Workbench. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] As attached Figure 1 To the attached Figure 4 As shown: The utility model provides a flattening device for polymer lithium-ion battery tabs, comprising a housing 1 and a workbench 17. The housing 1 is located on one side of the top of the workbench 17 and is fixedly connected to the workbench 17. A frequency converter 15 is fixedly connected to one side of the top of the workbench 17. Positioning plates 8 are fixedly connected to the four corners of the top of the workbench 17. A through hole 12 is formed on the top of the workbench 17. A flattening mold 13 is fixedly connected to the bottom of the workbench 17. The top of the flattening mold 13 is connected to the through hole 12. A fixing seat 2 is fixedly connected to one side of the inner cavity of the housing 1.

[0021] The adjustment mechanism includes a motor 3 fixedly connected to the top of the fixed base 2, one side of the inverter 15 is electrically connected to the motor 3, the output shaft of the motor 3 is fixedly connected to the disc 4, one side of the disc 4 is rotatably connected to the movable arm 5, one side of the movable arm 5 extends to the outside of the shell 1 and is rotatably connected to the connecting frame 6, one side of the connecting frame 6 is rotatably connected to the pressure roller 7, and the pressure roller 7 is in contact with the top of the workbench 17.

[0022] In this embodiment, a limiting hole 14 is opened on one side of the shell 1, one side of the movable arm 5 extends to the outside of the limiting hole 14, and the movable arm 5 is slidingly connected to the inner wall of the limiting hole 14. Through the setting of the limiting hole 14, the movable arm 5 is limited and supported, thereby preventing the movable arm 5 from loosening, slipping and tilting when swinging.

[0023] In this embodiment, a mounting seat 9 is provided on the surface of the motor 3, and the bottom of the mounting seat 9 is fixedly connected to the fixing seat 2. The setting of the mounting seat 9 supports and fixes the motor 3, thereby preventing the motor 3 from being offset during operation.

[0024] In this embodiment, a guide rod 10 is fixedly connected to the opposite side of the positioning plate 8, and a sliding sleeve 11 is fixedly connected to both sides of the connecting frame 6. The surface of the guide rod 10 is slidably connected to the sliding sleeve 11. Through the coordinated use of the guide rod 10 and the sliding sleeve 11, the connecting frame 6 is limited, thereby avoiding the position displacement of the connecting frame 6 during movement and improving the stability of the adjustment mechanism.

[0025] In this embodiment, the four corners of the bottom of the workbench 17 are fixedly connected to support bases 16, and the support bases 16 are symmetrically arranged. Through the arrangement of the support bases 16, a stable support platform can be provided to keep the battery tabs stable during the leveling process.

[0026] Working principle: First, the battery tab needs to be accurately positioned inside the through hole 12 and the flattening mold 13. The user starts the motor 3. The output shaft of the motor 3 rotates while driving the disc 4 to rotate. The disc 4 rotates while driving the movable arm 5 to swing. The movable arm 5 swings while driving the connecting frame 6 to move. The connecting frame 6 moves while driving the pressure roller 7 to apply appropriate pressure force on the battery tab. When pressure is applied to the battery tab, the uneven or raised parts will be flattened or removed. After the leveling process is completed, the battery tab needs to be inspected and quality controlled to ensure that the leveling effect meets the requirements. Through the setting of the inverter 15, the speed and power output of the motor 3 can be adjusted according to actual work needs to achieve energy consumption optimization. The operating speed and force of the leveling device can be adjusted according to the specifications and requirements of the battery tab, thereby saving energy and improving the leveling efficiency. Through the above steps, the leveling device of the polymer lithium-ion battery tab can realize the shaping and flattening of the battery tab.

[0027] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for leveling a polymer lithium-ion battery tab, comprising a housing (1) and a workbench (17), characterized in that: The shell (1) is located on one side of the top of the workbench (17) and is fixedly connected to the workbench (17); a frequency converter (15) is fixedly connected to one side of the top of the workbench (17); positioning plates (8) are fixedly connected to the four corners of the top of the workbench (17); a through hole (12) is provided on the top of the workbench (17); a flattening mold (13) is fixedly connected to the bottom of the workbench (17); the top of the flattening mold (13) is connected to the through hole (12); and a fixing seat (2) is fixedly connected to one side of the inner cavity of the shell (1); The adjusting mechanism includes a motor (3) fixedly connected to the top of the fixing seat (2), one side of the frequency converter (15) is electrically connected to the motor (3), the output shaft of the motor (3) is fixedly connected to the disc (4), one side of the disc (4) is rotatably connected to the movable arm (5), one side of the movable arm (5) extends to the outside of the shell (1) and is rotatably connected to the connecting frame (6), one side of the connecting frame (6) is rotatably connected to the pressure roller (7), and the pressure roller (7) is in contact with the top of the workbench (17).

2. The apparatus for flattening a polymer lithium-ion battery tab according to claim 1, wherein: A limiting hole (14) is provided on one side of the housing (1), one side of the movable arm (5) extends to the outside of the limiting hole (14), and the movable arm (5) is slidably connected to the inner wall of the limiting hole (14).

3. The apparatus for flattening a polymer lithium-ion battery tab according to claim 1, wherein: A mounting seat (9) is sleeved on the surface of the motor (3), and the bottom of the mounting seat (9) is fixedly connected to the fixing seat (2).

4. The apparatus for flattening a polymer lithium-ion battery tab according to claim 1, wherein: A guide rod (10) is fixedly connected to one side opposite to the positioning plate (8), and a sliding sleeve (11) is fixedly connected to both sides of the connecting frame (6), and the surface of the guide rod (10) is slidably connected to the sliding sleeve (11).

5. The apparatus for flattening a polymer lithium-ion battery tab according to claim 1, wherein: The four corners of the bottom of the workbench (17) are fixedly connected to support seats (16), and the support seats (16) are symmetrically arranged.

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