A lithium-ion battery sealing device

Abstract

The application discloses a lithium ion battery sealing device and relates to the technical field of lithium battery sealing devices.The lithium ion battery sealing device comprises a lithium ion battery sealing device body, the lithium ion battery sealing device body comprises a lapping bottom plate, a pushing flow guide mechanism is fixedly installed on the back surface of the lapping bottom plate, a downward pressing polymerization sealing unit is arranged on the top surface of the lapping bottom plate, a limiting sliding unit is fixedly connected to the top two side edge positions of the lapping bottom plate, and a butt joint sealing positioning unit is arranged on one end of the limiting sliding unit.The lithium ion battery is placed in the clamping groove, the position is limited, the downward pressing top plate is lowered by cooperating with the lifter, the downward pressing top plate bottom surface tapers the pushing closer outer side surface on the downward inclined groove and is butt jointed, so that the inside rolling pushing strip is rolled, the tapering pushing closer is extruded to the middle by the tapering pushing closer and the arc, and the tapering pushing closer is folded.

Description

Technical Field

[0001] This invention relates to the field of lithium battery sealing technology, and more specifically to a lithium-ion battery sealing device. Background Technology

[0002] Lithium-ion batteries are rechargeable batteries that primarily function by the movement of lithium ions between the positive and negative electrodes. During charging and discharging, Li+ ions repeatedly insert and extract between the two electrodes. Since the advent of the electrification era, people's reliance on electricity has expanded from the use of a light bulb to the use of electrical devices in every aspect of life. The widespread adoption of mobile devices in the 21st century has led to an ever-increasing demand for lithium batteries, forcing people to seek various means to improve the production efficiency of lithium batteries to meet the supply and demand dynamics of the market economy.

[0003] For example, Chinese Patent Publication No. CN105140569B describes an automatic lithium battery sealing machine, which includes a punch press. The punch press has punches and a punch press connecting plate installed on its upper and lower sides respectively. A battery conveyor belt to be sealed and a sealed battery conveyor belt are rotatably mounted on the punch press connecting plate. An upper die and a lower die are provided between the discharge end of the battery conveyor belt to be sealed and the feed end of the sealed battery conveyor belt. The upper die is connected to the punches, and the lower die is located inside the discharge end of the battery conveyor belt to be sealed. A material pusher plate that can move across the battery conveyor belt to be sealed is provided outside the discharge end of the battery conveyor belt to be sealed.

[0004] The existing technology has the following problems:

[0005] 1. The sealing process is a crucial step in lithium battery production. In traditional production methods, it is carried out manually by feeding and stamping, which is a complex process and leads to low production efficiency.

[0006] 2. Moreover, traditional batteries are stamped using a stamping machine when they are edge-sealed. To maintain stamping efficiency, multiple lithium battery components are usually stamped at once. When lithium batteries are edge-sealed, the stamping machine is fully automatic. If the handling speed is not fast enough, it can easily lead to employees being pinched and injured. Summary of the Invention

[0007] The present invention provides a lithium-ion battery sealing device to solve the problems mentioned in the background art.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0009] A lithium-ion battery sealing device includes a lithium battery sealing device body, wherein the lithium battery sealing device body includes an overlapping base plate, and a pushing and guiding mechanism is fixedly installed on the back of the overlapping base plate.

[0010] A pressing and sealing unit is provided on the top surface of the overlapping base plate, and a limiting sliding unit is fixedly connected to the top two side edges of the overlapping base plate. A docking and closing positioning unit is provided on one end of the limiting sliding unit.

[0011] The pushing and guiding mechanism includes a transmission sliding unit, and a compression limiting unit is provided on one end of the transmission sliding unit.

[0012] A further improvement of the technical solution of the present invention is that: the pressing polymerization sealing unit includes a lifter fixedly installed on the outer surface of the top of the overlapping base plate, which works in conjunction with the lifter to lower the pressing top plate. The output end of the lifter is fixedly connected to the pressing top plate, which works in conjunction with the trapezoidal push block on the bottom surface of the pressing top plate to align with the downward inclined groove on the outer surface of the push closure. A processor is fixedly connected to the bottom surface of the pressing top plate, which processes the heated shaping sealer and seals it. Trapezoidal push blocks are fixedly connected to both sides of the processor, and the arc of the trapezoidal push blocks is used to press the push closure towards the middle and close it. A polymerization flow guiding processing head is fixedly installed on the bottom surface of the processor, and a horn shell is fixedly connected to the bottom surface of the polymerization flow guiding processing head, which works in conjunction with the horn shell to concentrate the sealing aluminum material and the outer protective plastic film on the surface of the lithium battery.

[0013] A further improvement of the technical solution of the present invention is that: a flow guide strip is fixedly connected to the inner top surface of the horn shell, which guides the lithium battery, the edge sealing aluminum material, and the protective plastic film; an arc-shaped polymer rolling plate is fixedly connected to the inner wall of the polymer flow guiding processing head, and the edge sealing aluminum material and the protective plastic film are guided and slid by the arc of the surface of the arc-shaped polymer rolling plate, so that the protective plastic film slides towards the middle; a heating and shaping sealing device is fixedly connected to the output end of the lower pressure plate, which is movably sleeved on the inner surface of the polymer flow guiding processing head, and the protective plastic film and the edge sealing aluminum material are compacted by the heating and shaping sealing device.

[0014] A further improvement of the technical solution of the present invention is that: the limiting sliding unit includes a limiting strip fixedly connected to the top two sides of the overlapping base plate, a snap-fit ​​limiting plate slidably overlaps the outer surface of the limiting strip, a push closing device is fixedly connected to one end of the snap-fit ​​limiting plate, and the snap-fit ​​limiting plate on the outer surface of the push closing device slides on the surface of the limiting strip to limit the position of the push closing device. A snap-fit ​​groove is formed on the top surface of the overlapping base plate and at the center of the push closing device, and the lithium battery is placed inside the snap-fit ​​groove to limit its position.

[0015] A further improvement of the technical solution of the present invention is that: a downward inclined groove is provided on the outer surface of the push closure, and a rolling push strip is fixedly connected to the inner surface of the downward inclined groove, thereby rolling the rolling push strip inside; a fixing block is fixedly connected to the top two sides of the overlapping base plate, and a pull-back elastic wire is fixedly connected to one end of the fixing block to the outer surface of the push closure; when the trapezoidal push block is detached from the surface of the rolling push strip, it cooperates with the pull-back elastic wire on the outer surface of the fixing block to pull back the push closure, thus opening the push closure from the middle.

[0016] A further improvement of the technical solution of the present invention is that: the docking and sealing positioning unit includes a semi-circular groove formed on the inner surface of the push closing device, an arc-shaped snap-fit ​​plate is fixedly connected to the inner surface of the semi-circular groove, and an elastic anti-slip strip is fixedly connected to the outer surface of the arc-shaped snap-fit ​​plate, which, together with the elastic anti-slip strip on the outer surface of the arc-shaped snap-fit ​​plate, softly adheres to the surface of the lithium battery.

[0017] A further improvement of the technical solution of the present invention is that: the transmission sliding unit includes a sleeve fixedly installed on the outer surface of the overlapping base plate, a rotator fixedly installed on the inner surface of the sleeve, a limiting plate fixedly connected to the inner surface of the sleeve, which cooperates with the limiting plate to limit the position of the threaded rod, and a threaded rod threadedly sleeved on the outer surface of the sleeve and the limiting plate, so that the threaded rod slides on the inner surface of the threaded transmission teeth, thereby causing the threaded rod to move to one end, and a threaded transmission teeth threadedly sleeved on the outer surface of the threaded rod.

[0018] A further improvement of the technical solution of the present invention is that: the extrusion limiting unit includes an arc-shaped limiting sleeve that is movably sleeved on one end of the threaded rod, so that the swinging soft strip on one end of the arc-shaped limiting sleeve passes through the middle position of the push closing device and wraps the lithium battery on the inner surface of the locking groove. The swinging soft strip is fixedly connected to one side surface of the arc-shaped limiting sleeve, and the rolling soft block is fixedly connected to the swinging soft strip and the inner surface of the arc-shaped limiting sleeve. The rolling soft block on the inner surface of the swinging soft strip softly adheres to the surface of the lithium battery, increasing the friction on its surface and increasing the locking force.

[0019] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows:

[0020] 1. This invention provides a lithium-ion battery sealing device. The lithium battery is placed inside the snap-fit ​​groove, and its position is defined. A lifting device lowers the top plate, and a trapezoidal pushing block on the bottom surface of the top plate aligns with the downward-sloping groove on the outer surface of the push closure, thereby crushing the internal pressing pushing strip. The arc of the trapezoidal pushing block and the push closure are used to squeeze the push closure towards the center and close it. The elastic anti-slip strip on the outer surface of the arc-shaped snap-fit ​​plate is softly attached to the surface of the lithium battery. At the same time, the snap-fit ​​limiting plate on the outer surface of the push closure slides on the surface of the limiting strip to define the position of the push closure.

[0021] 2. This invention provides a lithium-ion battery sealing device, which is simultaneously attached to one end of the lithium battery with a polymer flow guiding processing head. A horn-shaped housing is used to concentrate the edge sealing aluminum material and the outer protective plastic film on the surface of the lithium battery. A flow guiding strip guides the lithium battery, edge sealing aluminum material, and protective plastic film. The arc of the curved polymer rolling plate guides the edge sealing aluminum material and protective plastic film to slide, causing the protective plastic film to slide towards the center. A heating and shaping sealing device then compacts the protective plastic film and edge sealing aluminum material. Finally, a processing device processes the heating and shaping sealing device to bond and seal the edges.

[0022] 3. This invention provides a lithium-ion battery sealing device. After the trapezoidal pushing block detaches from the surface of the rolling pushing strip, it works in conjunction with the pull-back elastic wire on the outer surface of the fixed block to pull back the pushing closure, pulling the pushing closure open from the middle. In conjunction with the rotating device, it drives the threaded transmission teeth, causing the threaded rod to slide on the inner surface of the threaded transmission teeth, thereby causing the threaded rod to move to one end. The position of the threaded rod is limited by the limiting plate.

[0023] 4. The present invention provides a lithium-ion battery sealing device, which allows the swinging soft strip on one end of the arc-shaped limiting sleeve to pass through the middle position of the push closing device, wrapping the lithium battery on the inner surface of the locking groove. The rolling soft block on the inner surface of the swinging soft strip is softly attached to the surface of the lithium battery, increasing the friction on the surface and increasing the locking force. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a three-dimensional structural diagram of the pressure plate of the present invention;

[0026] Figure 3 This is a partial cross-sectional perspective view of the three-dimensional structure of the pressure plate of the present invention;

[0027] Figure 4This is a partial cross-sectional three-dimensional structural schematic diagram of the polymer flow guiding processing head of the present invention;

[0028] Figure 5 This is a schematic diagram of the three-dimensional structure of the overlapping base plate of the present invention;

[0029] Figure 6 This is a three-dimensional structural diagram of the propulsion and guiding mechanism of the present invention;

[0030] Figure 7 This is a side view of the three-dimensional structure of the propulsion and guiding mechanism of the present invention.

[0031] In the diagram: 1. Lithium battery sealing device body; 11. Overlapping base plate; 12. Lifter; 13. Lowering top plate; a1. Trapezoidal pusher block; a2. Processor; a3. Polymerization flow guiding processing head; a4. Horn shell; a5. Flow guide strip; a6. Arc-shaped polymer rolling plate; a7. Heating and shaping sealing device; 14. Limiting strip; 15. Snap-fit ​​limiting plate; 16. Push closing device; 17. Arc-shaped snap-fit ​​plate; 18. Elastic anti-slip strip; 19. Downward inclined groove; 110. Rolling pusher strip; 111. Fixing block; 112. Retractable elastic wire;

[0032] 2. Driving and guiding mechanism; 21. Housing; 22. Limiting plate; 23. Threaded rod; 24. Arc-shaped limiting housing; 25. Swinging soft strip; 26. Crushing soft block; 27. Rotator; 28. Threaded transmission gear. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to embodiments: Example 1

[0034] like Figure 1-7As shown, the present invention provides a lithium-ion battery sealing device, including a lithium battery sealing device body 1. The lithium battery sealing device body 1 includes an overlapping base plate 11. A pushing and guiding mechanism 2 is fixedly installed on the back of the overlapping base plate 11. A pressing and polymerization sealing unit is provided on the top surface of the overlapping base plate 11. Limiting sliding units are fixedly connected to the top two side edges of the overlapping base plate 11. A docking and sealing positioning unit is provided at one end of the limiting sliding unit. The pressing and polymerization sealing unit includes a lifting device 12 fixedly installed on the top outer surface of the overlapping base plate 11. The lifting device 12 cooperates to lower the pressing top plate 13. A lowering device is fixedly connected to the output end of the lifting device 12. The top plate 13, together with the trapezoidal pushing block a1 on the bottom surface of the bottom plate 13, aligns with the downward inclined groove 19 on the outer surface of the push closure 16. A processor a2 is fixedly connected to the bottom surface of the bottom plate 13. The processor a2 processes the heating and shaping sealing device a7 and seals it. Trapezoidal pushing blocks a1 are fixedly connected to both sides of the processor a2. Using the curvature of the trapezoidal pushing blocks a1 and a10, the push closure 16 is squeezed towards the middle and closed. A polymerization flow guiding processing head a3 is fixedly installed on the bottom surface of the processor a2. The polymerization flow guiding processing head a3 is also snapped onto one end of the lithium battery.

[0035] Furthermore... Example 2

[0036] like Figure 1-7As shown, based on Embodiment 1, the present invention provides a technical solution: Preferably, a horn shell a4 is fixedly connected to the bottom surface of the polymerization flow guiding head a3, which, together with the horn shell a4, concentrates the edge sealing aluminum material and the outer protective plastic film on the surface of the lithium battery. A flow guiding strip a5 is fixedly connected to the inner top surface of the horn shell a4, which, together with the flow guiding strip a5, guides the lithium battery, the edge sealing aluminum material, and the protective plastic film. An arc-shaped polymerization pressing plate a6 is fixedly connected to the inner wall of the polymerization flow guiding head a3, and the arc of the arc-shaped polymerization pressing plate a6 guides the edge sealing aluminum material and the protective plastic film to slide, causing the protective plastic film to slide towards the center. A heating and shaping sealing device a7, which is movably sleeved on the inner surface of the polymerization flow guiding head a3, is fixedly connected to the output end of the lower pressure plate 13. The limiting sliding unit includes a limiting strip 14 fixedly connected to the top two edges of the overlapping base plate 11. A snap-fit ​​limiting plate 15 is slidably overlapped on the outer surface of the limiting strip 14. A push closing device 16 is fixedly connected to one end of the snap-fit ​​limiting plate 15. The snap-fit ​​limiting plate 15 on the outer surface of the push closing device 16 slides on the surface of the limiting strip 14 to limit the position of the push closing device 16. A snap-fit ​​groove is provided on the top surface of the overlapping base plate 11 and at the center of the push closing device 16. The lithium battery is placed inside the snap-fit ​​groove to limit its position. A downward inclined groove 19 is provided on the outer surface of the push closing device 16. A crushing pushing strip 110 is fixedly connected to the inner surface of the downward inclined groove 19 to crush the crushing pushing strip 110 inside. Example 3

[0037] like Figure 1-7 As shown, based on embodiments 1-2, the present invention provides a technical solution: Preferably, a fixing block 111 is fixedly connected to the top two sides of the overlapping base plate 11. A pull-back elastic wire 112 is fixedly connected to the outer surface of the push closure 16 at one end of the fixing block 111. When the trapezoidal push block a1 is detached from the surface of the rolling push strip 110, the pull-back elastic wire 112 on the outer surface of the fixing block 111 pulls back the push closure 16, pulling the push closure 16 open from the middle. The docking and sealing positioning unit includes a semi-circular groove on the inner surface of the push closure 16. An arc-shaped snap-fit ​​plate 17 is fixedly connected to the inner surface of the semi-circular groove. The protective plastic film and the edge sealing aluminum material are then compacted by the heating and shaping sealing device a7. An elastic anti-slip strip 18 is fixedly connected to the outer surface of the arc-shaped snap-fit ​​plate 17, and the elastic anti-slip strip 18 on the outer surface of the arc-shaped snap-fit ​​plate 17 is softly attached to the surface of the lithium battery. Example 4

[0038] like Figure 1-7As shown, based on embodiments 1-3, the present invention provides a technical solution: preferably, the pushing and guiding mechanism 2 includes a transmission sliding unit, one end of which is provided with a compression limiting unit. The transmission sliding unit includes a housing 21 fixedly installed on the outer surface of the overlapping base plate 11. A rotator 27 is fixedly installed on the inner surface of the housing 21, which in turn drives the threaded transmission teeth 28. A limiting plate 22 is fixedly connected to the inner surface of the housing 21, which in turn limits the position of the threaded rod 23. The threaded rod 23 is threadedly sleeved on the outer surfaces of the housing 21 and the limiting plate 22, so that the threaded rod 23 slides on the inner surface of the threaded transmission teeth 28, thereby causing the threaded rod 23 to move to one end. Example 5

[0039] like Figure 1-7 As shown, based on embodiments 1-4, the present invention provides a technical solution: Preferably, a threaded transmission tooth 28 is threaded onto the outer surface of the threaded rod 23, and the compression limiting unit includes an arc-shaped limiting sleeve 24 movably sleeved on one end of the threaded rod 23, so that the swinging soft strip 25 on one end of the arc-shaped limiting sleeve 24 passes through the middle position of the push closure 16 and wraps the lithium battery on the inner surface of the locking groove. The swinging soft strip 25 is fixedly connected to one side surface of the arc-shaped limiting sleeve 24, and a crushing soft block 26 is fixedly connected to the swinging soft strip 25 and the inner surface of the arc-shaped limiting sleeve 24. The crushing soft block 26 on the inner surface of the swinging soft strip 25 softly adheres to the surface of the lithium battery, increasing the friction on its surface and increasing the locking force.

[0040] The working principle of this lithium-ion battery sealing device will be explained in detail below.

[0041] like Figure 1-7As shown, the lithium battery is placed inside the snap-fit ​​groove, defining its position. The lifting device 12 lowers the top plate 13, and the trapezoidal pushing block a1 on the bottom surface of the top plate 13 aligns with the downward-sloping groove 19 on the outer surface of the push-closer 16, thus crushing the internal pressing pushing strip 110. Utilizing the curvature of the trapezoidal pushing blocks a1 and a10, the push-closer 16 is pressed towards the center, closing it up. This is further facilitated by the elastic anti-slip strip 18 on the outer surface of the curved snap-fit ​​plate 17. The adhesive is attached to the surface of the lithium battery, and simultaneously, the locking and limiting plate 15 on the outer surface of the push closure 16 slides on the surface of the limiting strip 14 to limit the position of the push closure 16. At the same time, the polymer flow guiding head a3 is snapped onto one end of the lithium battery. The horn sleeve a4 concentrates the edge sealing aluminum material and the outer protective plastic film on the surface of the lithium battery. The flow guiding strip a5 guides the lithium battery, edge sealing aluminum material, and protective plastic film. Finally, the curvature of the arc-shaped polymer rolling plate a6 further guides the edge sealing aluminum material and protective plastic film. The protective plastic film is guided to slide towards the center. Then, the heated and shaped sealing device a7 compacts the protective plastic film and the edge-sealing aluminum material. The processing device a2 processes the heated and shaped sealing device a7 to bond and seal the edges. When the trapezoidal pushing block a1 detaches from the surface of the rolling pushing strip 110, it works in conjunction with the pull-back elastic wire 112 on the outer surface of the fixed block 111 to pull back the pushing closure 16, opening it from the center. This, in conjunction with the rotating device 27, engages the threaded transmission gear 28. The transmission causes the threaded rod 23 to slide on the inner surface of the threaded transmission teeth 28, thereby moving the threaded rod 23 to one end. The position of the threaded rod 23 is limited by the limiting plate 22, so that the swinging soft strip 25 on one end of the arc-shaped limiting sleeve 24 passes through the middle position of the push closure 16 and wraps the lithium battery on the inner surface of the locking groove. The rolling soft block 26 on the inner surface of the swinging soft strip 25 is softly attached to the surface of the lithium battery, increasing the friction on its surface and increasing the locking force.

[0042] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A lithium-ion battery sealing device, suitable for sealing lithium batteries, comprising a lithium battery sealing device body (1), wherein the lithium battery sealing device body (1) includes an overlapping base plate (11), characterized in that: A push guide mechanism (2) is fixedly installed on the back of the overlapping base plate (11); A pressing and sealing unit is provided on the top surface of the overlapping base plate (11), and a limiting sliding unit is fixedly connected to the top two sides of the overlapping base plate (11). A docking and closing positioning unit is provided on one end of the limiting sliding unit. The pushing and guiding mechanism (2) includes a transmission sliding unit, and a squeezing limiting unit is provided on one end of the transmission sliding unit; The pressing polymerization sealing unit includes a lifter (12) fixedly installed on the top outer surface of the overlapping base plate (11). A pressing top plate (13) is fixedly connected to the output end of the lifter (12). A processor (a2) is fixedly connected to the bottom surface of the pressing top plate (13). Trapezoidal push blocks (a1) are fixedly connected to both sides of the processor (a2). A polymerization flow guiding processing head (a3) ​​is fixedly installed on the bottom surface of the processor (a2). A horn shell (a4) is fixedly connected to the bottom surface of the polymerization flow guiding processing head (a3). The limiting sliding unit includes a limiting strip (14) fixedly connected to the top two sides of the overlapping base plate (11). A snap-fit ​​limiting plate (15) is slidably overlapped on the outer surface of the limiting strip (14). A push-close device (16) is fixedly connected to one end of the snap-fit ​​limiting plate (15). A snap-fit ​​groove is provided on the top surface of the overlapping base plate (11) and at the center of the push-close device (16). The docking and closing positioning unit includes a semi-circular groove formed on the inner surface of the push closing device (16), an arc-shaped snap plate (17) is fixedly connected to the inner surface of the semi-circular groove, and an elastic anti-slip strip (18) is fixedly connected to the outer surface of the arc-shaped snap plate (17). The transmission sliding unit includes a housing (21) fixedly installed on the outer surface of the overlapping base plate (11), a rotator (27) fixedly installed on the inner surface of the housing (21), a limiting plate (22) fixedly connected to the inner surface of the housing (21), a threaded rod (23) threadedly sleeved on the outer surface of the housing (21) and the limiting plate (22), and a threaded transmission tooth (28) threadedly sleeved on the outer surface of the threaded rod (23). The extrusion limiting unit includes an arc-shaped limiting sleeve (24) movably sleeved on one end of the threaded rod (23). A swinging soft strip (25) is fixedly connected to one side surface of the arc-shaped limiting sleeve (24). A crushing soft block (26) is fixedly connected to the inner surface of the swinging soft strip (25) and the arc-shaped limiting sleeve (24).

2. The lithium-ion battery sealing device according to claim 1, characterized in that: A flow guide strip (a5) is fixedly connected to the inner top surface of the horn shell (a4), an arc-shaped polymer rolling plate (a6) is fixedly connected to the inner wall of the polymer flow guide processing head (a3), and a heating and shaping sealing device (a7) is fixedly connected to the output end of the lower pressure plate (13) and is movably sleeved on the inner surface of the polymer flow guide processing head (a3).

3. The lithium-ion battery sealing device according to claim 1, characterized in that: The outer surface of the push closure (16) is provided with a downward inclined groove (19), and a rolling push strip (110) is fixedly connected to the inner surface of the downward inclined groove (19). A fixing block (111) is fixedly connected to the top two sides of the overlapping base plate (11), and a pull-back elastic wire (112) is fixedly connected to the outer surface of the push closure (16) at one end of the fixing block (111).

Images