A modular soft-pack lithium battery packaging mechanism and packaging method

Abstract

The present invention discloses a modular soft-pack lithium battery cell packaging mechanism and packaging method, belonging to the field of lithium battery cell packaging technology, which includes a bottom plate, the upper surface of which is fixedly connected to the lower surface of the baffle through two supporting legs. In the present invention, by setting a first transmission mechanism, a partition, a second transmission mechanism, a heating base, a heating plate, a side sealing heating block, a sliding rod and a spring, the first transmission mechanism and the second transmission mechanism achieve the purpose of gap transmission, and the soft-pack lithium battery cell falls onto the second transmission mechanism so that it pushes the soft-pack lithium battery cell under the heating base and the heating plate. Since the heating base is supported by the elastic force of the spring, the heating plate is close to the soft-pack lithium battery cell, and the soft-pack lithium battery cell rotates at the same time, the packaging film sleeved on the outer wall of the lithium battery cell is smoothed and tightened, and the bubbles generated between the packaging film and the lithium battery cell are discharged. The scheme integrates gap feeding and packaging into an integrated design, which effectively improves its packaging efficiency and effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of lithium battery cell packaging, and specifically relates to a modular soft-pack lithium battery cell packaging mechanism and a packaging method. Background Art

[0002] There are dynamic electrochemical reactions inside lithium-ion batteries, which are sensitive to moisture and oxygen. Organic solvents inside the battery cell, such as electrolytes, will quickly react with lithium salts in the electrolyte to generate a large amount of HF when they come into contact with water and oxygen, affecting the electrochemical performance of the battery cell. The significance and purpose of soft-pack lithium-ion battery packaging is to use high-barrier soft packaging materials to completely isolate the inside of the battery cell from the outside, so that the inside is in a vacuum, oxygen-free, and water-free environment.

[0003] At present, in the modular soft-pack lithium battery packaging technology, aluminum-plastic film is mostly used for packaging, and the PP of the inner layer of the aluminum-plastic film is hot-melted, and plastic deformation is performed for bonding after cooling. For example, the Chinese invention patent document "A soft-pack lithium battery heat-sealing fixture and its heat-sealing process" has a patent number (CN202110714568.X). The patent points out that the soft-pack lithium battery heat-sealing fixture on the market is inconvenient for clamping cylindrical lithium batteries and has poor flexibility. The battery cells cannot be rotated after clamping, and it is not convenient for the packaging film to fit the outside of the battery cells. Specifically, the clamping mechanism uses the principle of a lever to control its opening and closing by pneumatic means. The connecting mechanism is movable, which facilitates the adjustment of the spacing between the clamping head mechanism, and the rotation between the clamping head and the clamping seat facilitates the rotation of the lithium battery cell after clamping, which is beneficial to the packaging of the packaging film on the outside of the lithium battery cell.

[0004] However, according to the above-mentioned invention patent document, the two ends of the cylindrical soft-pack lithium battery cell are packaged by clamping, which is difficult to meet the purpose of multi-directional packaging of the soft-pack lithium battery cell. It is necessary to add multiple processing steps for re-packaging, and the packaging effect is very unsatisfactory.

[0005] Secondly, the above patent document rotates the lithium battery cell so that the two sets of clamping heads rotate under the action of the connecting bearing, and the packaging film is wrapped around the lithium battery cell during the rotation. This method is difficult to ensure that the packaging film and the lithium battery cell fit closely and cannot play a smoothing role, so that bubbles are easily generated between the packaging film and the lithium battery cell, affecting the packaging effect.

[0006] Furthermore, when packaging in the above manner, the steps of loading, adjusting, packaging, and testing the lithium battery cells need to be completed separately. The process is very complicated. It is difficult to ensure the efficiency of the packaging work for batches of lithium battery cells. Therefore, an integrated lithium battery cell packaging mechanism is urgently needed to complete the packaging work, ensure the packaging efficiency, and improve the packaging effect. Summary of the invention

[0007] 1. Technical issues to be resolved

[0008] In order to overcome the above-mentioned defects of the prior art, the present invention provides a modular soft-pack lithium battery packaging mechanism and a packaging method, which solves the problem that the two ends of the cylindrical soft-pack lithium battery are packaged by clamping, but it is difficult to meet the purpose of multi-directional packaging of the soft-pack lithium battery, and it is necessary to add multiple processing steps for re-packaging, and the packaging effect is very unsatisfactory; during the packaging process, it is difficult to ensure that the packaging film and the lithium battery are closely attached, and it cannot play a smoothing role, so that bubbles are easily generated between the packaging film and the lithium battery, affecting the packaging effect.

[0009] (II) Technical solution

[0010] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a modular soft-pack lithium battery packaging mechanism, comprising a base plate, the upper surface of the base plate is fixedly connected to the lower surface of the baffle through two supporting legs, the right side of the lower surface of the baffle is fixedly connected to the upper surface of the base plate, the left side of the upper surface of the baffle is fixedly connected to the lower surface of the material box, a pushing assembly is arranged on the left side of the inner wall of the baffle, the pushing assembly is located below the material box, a second transmission mechanism is arranged below the pushing assembly, a transmission wheel is arranged at one end of the pushing assembly and the second transmission mechanism, the two transmission wheels are connected by a transmission belt, an adjustment assembly is fixedly connected to the front of the lower transmission wheel, an arc plate is arranged on the left side of the adjustment assembly, and a half gear is clamped on the inner wall of the arc plate.

[0011] A push rod is provided at the edge of the half gear, a connecting shaft is clamped in the middle of the half gear, the connecting shaft passes through the baffle and is fixedly connected to the output shaft of the driving assembly, the front of the driving assembly is fixedly connected to the back of the baffle, the upper surface of the baffle is fixedly connected to the lower surface of the bracket, a plurality of supporting assemblies are clamped on the top of the bracket, a same heating base is provided at the bottom ends of the plurality of supporting assemblies, the left and right sides of the lower surface of the heating base are both arc-shaped, a heating plate is provided at the bottom of the heating base, fixed blocks are provided on the front and rear sides of the right side of the heating base, side sealing heating blocks are provided on the opposite surfaces of the two fixed blocks, a protective cover is provided on the right side of the bracket, the lower surface of the protective cover is fixedly connected to the upper surface of the baffle, and a cooling component and a visual detection mechanism are clamped on the top of the protective cover.

[0012] As a further solution of the present invention: the bottom of the material box is of hollow design, and the front and upper surfaces of the material box are respectively provided with an observation window and a cover plate.

[0013] As a further solution of the present invention: the pusher assembly includes a first transmission mechanism, the first transmission mechanism is provided with a baffle, the outer wall of the first transmission mechanism is provided with a plurality of partitions, and the top of the partition is designed to be arc-shaped.

[0014] As a further solution of the present invention: the driving assembly includes a motor, a fixing plate is provided at the bottom of the motor body, the front side of the fixing plate is fixedly connected to the back side of the baffle, and the output shaft of the motor is fixedly connected to one end of the back side of the connecting shaft.

[0015] As a further solution of the present invention: the adjustment component includes a toothed disc, the back side of the toothed disc is fixedly connected to the front side of the transmission wheel, the front side of the toothed disc is fixedly connected to a push rod, the left side of the toothed disc is provided with a groove, and the inner wall of the groove overlaps the outer wall of the arc plate.

[0016] As a further solution of the present invention: the supporting assembly includes a sleeve, the sleeve is clamped on the top of the bracket, a sliding rod is sleeved in the sleeve, the bottom end of the sliding rod is fixedly connected to the upper surface of the heating base, and a spring is sleeved on the outer wall of the sliding rod, and the two ends of the spring are respectively fixedly connected to the bottom of the sleeve and the upper surface of the heating base.

[0017] As a further solution of the present invention: the cooling component includes a hood, the hood is clamped on the top of the protective cover, and the air outlet of the hood is located inside the protective cover, and an air cooler is arranged on the top of the hood.

[0018] As a further solution of the present invention: a plurality of curtains are arranged on the right side of the wind hood, the plurality of curtains are arranged on the right side of the inner wall of the protective hood, and the curtains are designed to be transparent.

[0019] As a further solution of the present invention: the cooling component also includes a phase change material heat dissipation layer arranged on the surface of the second transmission mechanism, and the phase change material heat dissipation layer is polyethylene glycol with an average relative molecular mass of 1000. Among them, polyethylene glycol is an organic solid-solid phase change material (the solid-state ordered molecular connection structure becomes a solid-state disordered molecular connection structure), and its phase change temperature will increase with the increase of polymerization degree. Therefore, its average relative molecular mass cannot be too high or too low. When its phase change temperature (37~41°C) is reached, a solid-solid phase change will occur, absorbing heat, thereby accelerating the reduction of the temperature of the packaged lithium battery cell. Therefore, the present application can achieve a rapid cooling effect on the packaged lithium battery cell through the synergistic effect of air cooling + phase change heat dissipation.

[0020] As a further solution of the present invention: a dividing component is arranged on the right side of the second transmission mechanism, and the dividing component is clamped in the baffle, the dividing component includes a driving motor, a controller is provided at the bottom of the driving motor, the driving motor is arranged on the front side of the baffle, a blanking plate is clamped on the output shaft of the driving motor, the blanking plate is of inclined design, a placing rack is arranged on the right side of the blanking plate, and two storage boxes are arranged on the placing rack.

[0021] In addition, the present invention also provides a packaging method for a modular soft-pack lithium battery cell packaging mechanism, comprising the following steps:

[0022] S1. When the modular soft-pack lithium battery cells need to be packaged, the cylindrical soft-pack lithium battery cells with the outer wall covered with the packaging film are placed into the material box by opening the cover plate. Since the bottom of the material box is hollow, the cylindrical soft-pack lithium battery cells are respectively located between the two partitions.

[0023] S2. Secondly, the driving motor is reversed to drive the half gear to rotate through the connecting shaft. During the rotation, the half gear drives the push rod and the arc plate to rotate. When the push rod contacts the push rod, the gear plate is pushed. Secondly, the half gear is engaged with the gear plate and drives the half gear to rotate. The half gear drives the first transmission mechanism and the second transmission mechanism to rotate synchronously through the transmission wheel and the transmission belt.

[0024] S3. When the half gear is separated from the toothed disc, one side of the arc plate contacts the groove on the toothed disc to limit the toothed disc and prevent it from shaking. At this time, the half gear, the first transmission mechanism and the second transmission mechanism do not rotate, so that the first transmission mechanism and the second transmission mechanism can achieve the purpose of gap transmission.

[0025] S4. During the intermittent transmission process of the first transmission mechanism and the second transmission mechanism, the soft-pack lithium battery cell between the two partitions falls onto the second transmission mechanism, and the second transmission mechanism pushes the soft-pack lithium battery cell under the heating base and the heating plate. Since the heating base is supported by the elastic force of the spring, the heating plate is close to the soft-pack lithium battery cell. At the same time, the soft-pack lithium battery cell rotates to smooth and tighten the packaging film sleeved on the outer wall of the lithium battery cell, and the bubbles generated between the packaging film and the lithium battery cell are discharged. After the heating plate reaches the requirement of 200°C, the soft-pack lithium battery cell is externally packaged, and then the two side sealing heating blocks on the right side of the heating base perform side sealing on both ends of the soft-pack lithium battery cell.

[0026] S5. After the packaging process of the soft-pack lithium battery cell is completed, the soft-pack lithium battery cell is transmitted to the protective cover by the second transmission mechanism. First, the air cooler is controlled to spray cold air from the air cover and cool the packaged soft-pack lithium battery cell. Then, the packaging appearance of the soft-pack lithium battery cell is inspected by the visual inspection mechanism.

[0027] S6. When the visual inspection mechanism detects that the package is qualified, the visual inspection mechanism transmits a signal to the controller, and the controller controls the drive motor to rotate forward, so that the soft-pack lithium battery cell slides through the blanking plate to the storage box below. When the package is detected to be unqualified, the visual inspection mechanism transmits a signal to the controller, and the controller controls the drive motor to rotate reversely, adjusts the inclination angle of the blanking plate, and makes the soft-pack lithium battery cell slide through the blanking plate to the storage box above. When the visual inspection mechanism is not performing inspection work, the controller controls the drive motor to return the blanking plate to the initial position.

[0028] (III) Beneficial effects

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. In the present invention, by arranging a first transmission mechanism, a partition, a second transmission mechanism, a heating base, a heating plate, a side sealing heating block, a sliding rod and a spring, when performing packaging work, the bottom of the material box is hollowed out, so that the cylindrical soft-pack lithium battery cells are respectively located between the two partitions, and the driving motor is reversed to drive the half gear to rotate through the connecting shaft. During the rotation, the half gear drives the push rod and the arc plate to rotate. When the push rod contacts the push rod, the toothed disc is pushed. Then the half gear meshes with the toothed disc and drives the half gear to rotate. The half gear drives the first transmission mechanism and the second transmission mechanism to rotate synchronously through the transmission wheel and the transmission belt. After the half gear is disengaged from the toothed disc, one side of the arc plate contacts the groove on the toothed disc to limit the toothed disc and prevent it from shaking. At this time, the half gear, the first transmission mechanism and the second transmission mechanism are synchronously driven to rotate. The driving mechanism and the second transmission mechanism do not rotate, so that the first transmission mechanism and the second transmission mechanism achieve the purpose of intermittent transmission, the soft-pack lithium battery cell between the two partitions falls onto the second transmission mechanism, and the second transmission mechanism pushes the soft-pack lithium battery cell under the heating base and the heating plate. Since the heating base is supported by the elastic force of the spring, the heating plate is close to the soft-pack lithium battery cell. At the same time, the soft-pack lithium battery cell rotates to smooth and tighten the packaging film sleeved on the outer wall of the lithium battery cell, and the bubbles generated between the packaging film and the lithium battery cell are discharged. The heating plate performs external packaging treatment on the soft-pack lithium battery cell, and then the two side sealing heating blocks on the right side of the heating base perform side sealing on both ends of the soft-pack lithium battery cell. This solution integrates intermittent feeding and packaging into an integrated design, which effectively improves its packaging efficiency and effect.

[0031] 2. In the present invention, by setting a second transmission mechanism, a driving motor, a blanking plate, a storage box, a visual inspection mechanism and a protective cover, when the visual inspection mechanism detects that the packaging is qualified, the visual inspection mechanism transmits a signal to the controller, and the controller controls the driving motor to rotate forward, so that the soft-pack lithium battery cell slides through the blanking plate to the storage box below; when the packaging is detected to be unqualified, the visual inspection mechanism transmits a signal to the controller, and the controller controls the driving motor to reverse, adjusts the inclination angle of the blanking plate, so that the soft-pack lithium battery cell slides through the blanking plate to the storage box above; when the visual inspection mechanism does not perform inspection work, the controller controls the driving motor to return the blanking plate to the initial position, so as to effectively classify and store qualified / unqualified packaging products and perform intelligent sorting.

[0032] 3. In the present invention, by arranging a cooling fan, an air hood, a transmission wheel, a transmission belt, a half gear, a toothed disc, a push rod, a push rod, a first transmission mechanism and a second transmission mechanism, when the soft-pack lithium battery cell is subjected to a complete processing flow, the driving motor is reversed to drive the half gear, the arc plate and the push rod to rotate through the connecting shaft, and when the push rod contacts the push rod, the toothed disc is pushed, and then the half gear is engaged with the toothed disc and drives the half gear to rotate, and the half gear drives the first transmission mechanism and the second transmission mechanism to rotate synchronously through the transmission wheel and the transmission belt, and since the first transmission mechanism and the second transmission mechanism work intermittently, the soft-pack lithium battery cell is packaged, cooled, tested and unloaded and sorted on the second transmission mechanism, and the design of the integrated processing assembly line is beneficial to the packaging work of batch lithium batteries, and the high efficiency of the packaging work is ensured, while the packaging effect is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0034] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention from a rear view;

[0035] Figure 3 It is a structural schematic diagram of the connection between the pusher assembly and the second transmission mechanism of the present invention;

[0036] Figure 4 It is a three-dimensional structural schematic diagram of the pusher assembly of the present invention;

[0037] Figure 5 It is a schematic diagram of the three-dimensional structure of the bracket of the present invention;

[0038] Figure 6 It is a structural schematic diagram of the connection between the bracket and the supporting assembly of the present invention;

[0039] Figure 7 It is a three-dimensional structural schematic diagram of the protective cover of the present invention.

[0040] In the figure: 1, bottom plate; 2, supporting leg; 3, baffle; 4, material box; 5, cover plate; 6, pusher assembly; 61, first transmission mechanism; 62, partition; 7, transmission wheel; 8, transmission belt; 9, adjustment assembly; 91, toothed disc; 92, push rod; 93, groove; 10, arc plate; 11, half gear; 12, push rod; 13, connecting shaft; 14, drive assembly; 141, motor; 142, fixed plate; 15, second transmission mechanism; 16. Bracket; 17. Heating base; 18. Heating plate; 19. Fixing block; 20. Side sealing heating block; 21. Support assembly; 211. Sleeve; 212. Sliding rod; 213. Spring; 22. Protective cover; 23. Cooling assembly; 231. Wind hood; 232. Air cooler; 24. Visual inspection mechanism; 25. Curtain; 26. Dividing assembly; 261. Driving motor; 262. Unloading plate; 27. Placement rack; 28. Storage box. DETAILED DESCRIPTION

[0041] The technical solution of this patent is further described in detail below in combination with specific implementation methods and drawings.

[0042] like Figure 1-Figure 7 As shown, the present invention provides a modular soft-pack lithium battery packaging mechanism, including a base plate 1, the upper surface of the base plate 1 is fixedly connected to the lower surface of the baffle 3 through two supporting legs 2, the right side of the lower surface of the baffle 3 is fixedly connected to the upper surface of the base plate 1, the left side of the upper surface of the baffle 3 is fixedly connected to the lower surface of the material box 4, a pusher assembly 6 is arranged on the left side of the inner wall of the baffle 3, the pusher assembly 6 is located below the material box 4, a second transmission mechanism 15 is arranged below the pusher assembly 6, one end of the pusher assembly 6 and the second transmission mechanism 15 are both provided with a transmission wheel 7, the two transmission wheels 7 are connected by a transmission belt 8, an adjustment assembly 9 is fixedly connected to the front of the lower transmission wheel 7, an arc plate 10 is arranged on the left side of the adjustment assembly 9, and a half gear 11 is clamped on the inner wall of the arc plate 10.

[0043] A push rod 12 is provided at the edge of the half gear 11, a connecting shaft 13 is clamped in the middle of the half gear 11, the connecting shaft 13 passes through the baffle 3 and is fixedly connected to the output shaft of the driving component 14, the front of the driving component 14 is fixedly connected to the back of the baffle 3, the upper surface of the baffle 3 is fixedly connected to the lower surface of the bracket 16, a plurality of supporting components 21 are clamped on the top of the bracket 16, and the bottom ends of the plurality of supporting components 21 are provided with the same heating base 17, the left and right sides of the lower surface of the heating base 17 are both arc-shaped, and the bottom of the heating base 17 is provided with a heating Plate 18, the front and rear sides of the right side of the heating base 17 are both provided with fixed blocks 19, the opposite surfaces of the two fixed blocks 19 are both provided with side sealing heating blocks 20, a protective cover 22 is provided on the right side of the bracket 16, the lower surface of the protective cover 22 is fixedly connected to the upper surface of the baffle 3, and the top of the protective cover 22 is clamped with a cooling component 23 and a visual inspection mechanism 24, through the mutual cooperation between the cold air fan 232 and the wind cover 231, after the soft-pack lithium battery cell is packaged, the cold air sprayed by the wind cover 231 can quickly cool the soft-pack lithium battery cell, thereby improving the packaging processing effect.

[0044] Specifically, Figure 1 , Figure 3 and Figure 4 As shown, the bottom of the material box 4 is hollowed out, and the front and upper surfaces of the material box 4 are respectively provided with an observation window and a cover plate 5, the pusher assembly 6 includes a first transmission mechanism 61, the first transmission mechanism 61 is provided with a baffle 3, and the outer wall of the first transmission mechanism 61 is provided with a plurality of partitions 62, and the top of the partition 62 is arc-shaped. The drive assembly 14 includes a motor 141, and a fixing plate 142 is provided at the bottom of the motor 141 body, and the front of the fixing plate 142 is fixedly connected to the back of the baffle 3, and the output shaft of the motor 141 is fixedly connected to one end of the back of the connecting shaft 13, and the adjusting assembly 9 includes a toothed disc 91, the back of the toothed disc 91 is fixedly connected to the front of the transmission wheel 7, a push rod 92 is fixedly connected to the front of the toothed disc 91, a groove 93 is opened on the left side of the toothed disc 91, and the inner wall of the groove 93 overlaps the outer wall of the arc plate 10. By setting the adjustment component 9, since the first transmission mechanism 61 and the second transmission mechanism 15 work in a gap-type manner, the soft-pack lithium battery cell is packaged, cooled, tested and unloaded and sorted on the second transmission mechanism 15. The design of the integrated processing line is conducive to the packaging of batch lithium batteries and ensures the efficiency of the packaging work.

[0045] Specifically, Figure 1 , Figure 5 , Figure 6 and Figure 7As shown, the support component 21 includes a sleeve 211, which is clamped on the top of the bracket 16. A slide rod 212 is sleeved in the sleeve 211. The bottom end of the slide rod 212 is fixedly connected to the upper surface of the heating base 17. Through the cooperation between the heating base 17 and the spring 213, the second transmission mechanism 15 pushes the soft-pack lithium battery cell under the heating base 17 and the heating plate 18. Since the heating base 17 is supported by the elastic force of the spring 213, the heating plate 18 is close to the soft-pack lithium battery cell. At the same time, the soft-pack lithium battery cell rotates to smooth and tighten the packaging film sleeved on the outer wall of the lithium battery cell, and discharge the bubbles generated between the packaging film and the lithium battery cell. The outer wall of the slide rod 212 is sleeved with a spring 213. The two ends of the spring 213 are respectively fixedly connected to the bottom of the sleeve 211 and the upper surface of the heating base 17. The cooling component 23 It includes a wind hood 231, which is clamped on the top of the protective cover 22, and the air outlet of the wind hood 231 is located inside the protective cover 22, a cold air fan 232 is arranged on the top of the wind hood 231, and a plurality of curtains 25 are arranged on the right side of the wind hood 231, and the plurality of curtains 25 are arranged on the right side of the inner wall of the protective cover 22, and the curtains 25 are designed to be transparent, a dividing component 26 is arranged on the right side of the second transmission mechanism 15, and the dividing component 26 is clamped in the baffle 3, and the dividing component 26 includes a driving motor 261, and a controller is provided at the bottom of the driving motor 261, and the driving motor 261 is arranged on the front side of the baffle 3, and a blanking plate 262 is clamped on the output shaft of the driving motor 261, and the blanking plate 262 is designed to be inclined, and a placement rack 27 is arranged on the right side of the blanking plate 262, and two storage boxes 28 are arranged on the placement rack 27. Furthermore, the cooling component 23 also includes a phase change material heat dissipation layer arranged on the surface of the second transmission mechanism, and the phase change material heat dissipation layer is polyethylene glycol with an average relative molecular mass of 1000. Among them, polyethylene glycol is an organic solid-solid phase change material (the solid-state ordered molecular connection structure becomes a solid-state disordered molecular connection structure), and its phase change temperature will increase with the increase of polymerization degree. Therefore, its average relative molecular mass cannot be too high or too low. When its phase change temperature (37~41°C) is reached, a solid-solid phase change will occur, absorbing heat, thereby accelerating the reduction of the temperature of the packaged lithium battery cell. Therefore, the present application can achieve a rapid cooling effect on the packaged lithium battery cell through the synergistic effect of air cooling + phase change heat dissipation.

[0046] The packaging method of a modular soft-pack lithium battery cell packaging mechanism comprises the following steps:

[0047] S1. When the modular soft-pack lithium battery needs to be packaged, the cover plate 5 is opened to place the cylindrical soft-pack lithium battery with the outer wall covered with the packaging film into the material box 4. Since the bottom of the material box 4 is hollow, the cylindrical soft-pack lithium battery is located between the two partitions 62.

[0048] S2. Next, the driving motor 141 is reversed to drive the half gear 11 to rotate through the connecting shaft 13. During the rotation, the half gear 11 drives the push rod 12 and the arc plate 10 to rotate. When the push rod 12 contacts the push rod 92, the toothed disc 91 is pushed. Next, the half gear 11 is engaged with the toothed disc 91 and drives the half gear 11 to rotate. The half gear 11 drives the first transmission mechanism 61 and the second transmission mechanism 15 to rotate synchronously through the transmission wheel 7 and the transmission belt 8.

[0049] S3. When the half gear 11 is separated from the toothed disc 91, one side of the arc plate 10 contacts the groove 93 on the toothed disc 91 to limit the toothed disc 91 and prevent it from shaking. At this time, the half gear 11, the first transmission mechanism 61 and the second transmission mechanism 15 do not rotate, so that the first transmission mechanism 61 and the second transmission mechanism 15 can achieve the purpose of intermittent transmission.

[0050] S4, during the intermittent transmission process of the first transmission mechanism 61 and the second transmission mechanism 15, the soft-pack lithium battery cell between the two partitions 62 falls onto the second transmission mechanism 15, and the second transmission mechanism 15 pushes the soft-pack lithium battery cell under the heating base 17 and the heating plate 18. Since the heating base 17 is supported by the elastic force of the spring 213, the heating plate 18 is close to the soft-pack lithium battery cell. At the same time, the soft-pack lithium battery cell rotates to smooth and tighten the packaging film sleeved on the outer wall of the lithium battery cell, and discharge the bubbles generated between the packaging film and the lithium battery cell. After the heating plate 18 reaches the requirement of 200°C, the soft-pack lithium battery cell is externally packaged. Secondly, the two side sealing heating blocks 20 on the right side of the heating base 17 perform side sealing on both ends of the soft-pack lithium battery cell.

[0051] S5. After the packaging process of the soft-pack lithium battery is completed, the soft-pack lithium battery is transferred to the protective cover 22 by the second transmission mechanism 15. First, the air cooler 232 is controlled to work so that cold air is sprayed out from the wind cover 231 to cool the packaged soft-pack lithium battery. Then, the packaging appearance of the soft-pack lithium battery is inspected by the visual inspection mechanism 24.

[0052] S6. When the visual inspection mechanism 24 detects that the package is qualified, the visual inspection mechanism 24 transmits a signal to the controller, and the controller controls the drive motor 261 to rotate forward, so that the soft-pack lithium battery cell slides through the blanking plate 262 to the lower storage box 28. When the package is detected to be unqualified, the visual inspection mechanism 24 transmits a signal to the controller, and the controller controls the drive motor 261 to rotate reversely, adjust the inclination angle of the blanking plate 262, so that the soft-pack lithium battery cell slides through the blanking plate 262 to the upper storage box 28. When the visual inspection mechanism 24 is not performing the inspection work, the controller controls the drive motor 261 to return the blanking plate 262 to the initial position.

[0053] The present invention is provided with a first transmission mechanism 61, a partition 62, a second transmission mechanism 15, a heating base 17, a heating plate 18, a side sealing heating block 20, a sliding rod 212 and a spring 213. When the packaging work is performed, the bottom of the material box 4 is hollowed out, so that the cylindrical soft-pack lithium battery cells are respectively located between the two partitions 62. The driving motor 141 is reversed to drive the half gear 11 to rotate through the connecting shaft 13. The half gear 11 drives the push rod 12 and the arc plate 10 to rotate during the rotation. When the push rod 12 contacts the push rod 92, the toothed disc 91 is pushed. Then, the half gear 11 is meshed with the toothed disc 91 and drives the half gear 11 to rotate. The half gear 11 drives the first transmission mechanism 61 and the second transmission mechanism 15 to rotate synchronously through the transmission wheel 7 and the transmission belt 8. After the half gear 11 is separated from the toothed disc 91, one side of the arc plate 10 contacts the groove 93 on the toothed disc 91 to achieve the limit of the toothed disc 91. , to prevent it from shaking. At this time, the half gear 11, the first transmission mechanism 61 and the second transmission mechanism 15 do not rotate, so that the first transmission mechanism 61 and the second transmission mechanism 15 achieve the purpose of intermittent transmission. The soft-pack lithium battery cell between the two partitions 62 falls onto the second transmission mechanism 15, and the second transmission mechanism 15 pushes the soft-pack lithium battery cell under the heating base 17 and the heating plate 18. Since the heating base 17 is supported by the elastic force of the spring 213, the heating plate 18 is close to the soft-pack lithium battery cell. At the same time, the soft-pack lithium battery cell rotates to smooth and tighten the packaging film sleeved on the outer wall of the lithium battery cell, and discharge the bubbles generated between the packaging film and the lithium battery cell. The heating plate performs external packaging on the soft-pack lithium battery cell. Secondly, the two side sealing heating blocks 20 on the right side of the heating base 17 perform side sealing on both ends of the soft-pack lithium battery cell. This solution integrates intermittent feeding and packaging into an integrated design, which effectively improves its packaging efficiency and effect.

[0054] The present invention is provided with a second transmission mechanism 15, a driving motor 261, a blanking plate 262, a storage box 28, a visual inspection mechanism 24 and a protective cover 22. When the visual inspection mechanism 24 detects that the packaging is qualified, the visual inspection mechanism 24 transmits a signal to the controller, and the controller controls the driving motor 261 to rotate forward, so that the soft-pack lithium battery cell slides through the blanking plate 262 to the storage box 28 below. When the packaging is detected to be unqualified, the visual inspection mechanism 24 transmits a signal to the controller, and the controller controls the driving motor 261 to reverse, adjust the inclination angle of the blanking plate 262, so that the soft-pack lithium battery cell slides through the blanking plate 262 to the storage box 28 above. When the visual inspection mechanism 24 does not perform the inspection work, the controller controls the driving motor 261 to return the blanking plate 262 to the initial position, so as to effectively classify and store the qualified / unqualified packaging products and perform intelligent sorting.

[0055] The present invention is provided with a cooling fan 232, a wind cover 231, a transmission wheel 7, a transmission belt 8, a half gear 11, a toothed disc 91, a push rod 12, a push rod 92, a first transmission mechanism 61 and a second transmission mechanism 15. When the soft-pack lithium battery cell is subjected to a whole set of processing procedures, the driving motor 141 is reversed to drive the half gear 11, the arc plate 10 and the push rod 92 to rotate through the connecting shaft 13. When the push rod 12 contacts the push rod 92, the toothed disc 91 is pushed. Then, the half gear 11 is meshed with the toothed disc 91 and drives the half gear 11 to rotate. The half gear 11 drives the first transmission mechanism 61 and the second transmission mechanism 15 to rotate synchronously through the transmission wheel 7 and the transmission belt 8. Since the first transmission mechanism 61 and the second transmission mechanism 15 work in an intermittent manner, the soft-pack lithium battery cell is packaged, cooled, tested and unloaded and sorted on the second transmission mechanism 15. The design of the integrated processing assembly line is beneficial to the packaging work of batch lithium batteries, ensures the high efficiency of the packaging work, and improves the packaging effect.

[0056] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0057] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A modular soft-pack lithium battery cell packaging structure, comprising a bottom plate (1), characterized in that: The upper surface of the base plate (1) is fixedly connected to the lower surface of the baffle (3) through two supporting legs (2); the right side of the lower surface of the baffle (3) is fixedly connected to the upper surface of the base plate (1); the left side of the upper surface of the baffle (3) is fixedly connected to the lower surface of the material box (4); a push assembly (6) is arranged on the left side of the inner wall of the baffle (3); the push assembly (6) is located below the material box (4); a second transmission mechanism (15) is arranged below the push assembly (6); a transmission wheel (7) is arranged at one end of the push assembly (6) and the second transmission mechanism (15); the two transmission wheels (7) are connected by a transmission belt (8); an adjustment assembly (9) is fixedly connected to the front of the lower transmission wheel (7); an arc plate (10) is arranged on the left side of the adjustment assembly (9); a half gear (11) is clamped on the inner wall of the arc plate (10); A push rod (12) is provided at the edge of the half gear (11); a connecting shaft (13) is clamped in the middle of the half gear (11); the connecting shaft (13) passes through the baffle (3) and is fixedly connected to the output shaft of the driving assembly (14); the front surface of the driving assembly (14) is fixedly connected to the back surface of the baffle (3); the upper surface of the baffle (3) is fixedly connected to the lower surface of the bracket (16); a plurality of supporting assemblies (21) are clamped at the top of the bracket (16); the bottom ends of the plurality of supporting assemblies (21) are provided with a common heating base (17); The left and right sides of the lower surface of the heating base (17) are both of arc-shaped design, a heating plate (18) is arranged at the bottom of the heating base (17), fixing blocks (19) are arranged at the front and rear sides of the right side of the heating base (17), and side sealing heating blocks (20) are arranged on the opposite surfaces of the two fixing blocks (19), a protective cover (22) is arranged on the right side of the bracket (16), the lower surface of the protective cover (22) is fixedly connected to the upper surface of the baffle (3), and a cooling component (23) and a visual detection mechanism (24) are clamped on the top of the protective cover (22).

2. A modular soft-pack lithium battery cell packaging mechanism according to claim 1, characterized in that: The bottom of the material box (4) is of hollow design, and the front surface and the upper surface of the material box (4) are respectively provided with an observation window and a cover plate (5).

3. A modular soft-pack lithium battery packaging structure according to claim 1, characterized in that: The pusher assembly (6) comprises a first transmission mechanism (61), the first transmission mechanism (61) is arranged inside a baffle (3), a plurality of partitions (62) are arranged on the outer wall of the first transmission mechanism (61), and the top of the partition (62) is designed to be arc-shaped.

4. A modular soft-pack lithium battery packaging structure according to claim 1, characterized in that: The driving assembly (14) comprises a motor (141), a fixing plate (142) being provided at the bottom of a body of the motor (141), the front side of the fixing plate (142) being fixedly connected to the back side of the baffle (3), and the output shaft of the motor (141) being fixedly connected to one end of the back side of the connecting shaft (13).

5. The modular soft-pack lithium battery packaging structure according to claim 1, characterized in that: The adjustment assembly (9) comprises a toothed disc (91), the back side of the toothed disc (91) being fixedly connected to the front side of the transmission wheel (7), the front side of the toothed disc (91) being fixedly connected to a push rod (92), the left side of the toothed disc (91) being provided with a groove (93), the inner wall of the groove (93) being overlapped with the outer wall of the arc-shaped plate (10).

6. A modular soft-pack lithium battery cell packaging structure according to claim 1, characterized in that: The support assembly (21) comprises a sleeve (211), the sleeve (211) being clamped on the top of the bracket (16), a sliding rod (212) being sleeved inside the sleeve (211), the bottom end of the sliding rod (212) being fixedly connected to the upper surface of the heating base (17), a spring (213) being sleeved on the outer wall of the sliding rod (212), and two ends of the spring (213) being respectively fixedly connected to the bottom of the sleeve (211) and the upper surface of the heating base (17).

7. A modular soft-pack lithium battery cell packaging mechanism according to claim 1, characterized in that: The cooling component (23) comprises an air hood (231), the air hood (231) being clamped on the top of the protective cover (22), and the air outlet of the air hood (231) being located inside the protective cover (22), and a cooling fan (232) being arranged on the top of the air hood (231).

8. A modular soft-pack lithium battery packaging structure according to claim 7, characterized in that: A plurality of blocking curtains (25) are arranged on the right side of the wind cover (231), the plurality of blocking curtains (25) are arranged on the right side of the inner wall of the protective cover (22), and the blocking curtains (25) are designed to be transparent.

9. The modular soft-pack lithium battery packaging structure according to claim 1, characterized in that: A dividing component (26) is arranged on the right side of the second transmission mechanism (15), the dividing component (26) is clamped in the baffle (3), the dividing component (26) comprises a driving motor (261), a controller is arranged at the bottom of the driving motor (261), the driving motor (261) is arranged on the front side of the baffle (3), a material discharge plate (262) is clamped on the output shaft of the driving motor (261), the material discharge plate (262) is of inclined design, a placement rack (27) is arranged on the right side of the material discharge plate (262), and two material storage boxes (28) are arranged on the placement rack (27).

10. A packaging method for a modular soft-pack lithium battery packaging mechanism according to claim 9, characterized in that: The following steps are involved: S1. When the modular soft-pack lithium battery cell needs to be packaged, the cover plate (5) is opened to place the cylindrical soft-pack lithium battery cell with the outer wall covered with a packaging film into the material box (4). Since the bottom of the material box (4) is hollow, the cylindrical soft-pack lithium battery cell is located between the two partitions (62). S2, the driving motor (141) is reversed to drive the half gear (11) to rotate via the connecting shaft (13), and the half gear (11) drives the push rod (12) and the arc plate (10) to rotate during the rotation process. When the push rod (12) contacts the push rod (92), the toothed disc (91) is pushed, and the half gear (11) meshes with the toothed disc (91) and drives the half gear (11) to rotate. The half gear (11) drives the first transmission mechanism (61) and the second transmission mechanism (15) to rotate synchronously via the transmission wheel (7) and the transmission belt (8); S3, when the half gear (11) is separated from the toothed disc (91), one side of the arc-shaped plate (10) contacts the groove (93) on the toothed disc (91), thereby limiting the position of the toothed disc (91) and preventing it from shaking. At this time, the half gear (11), the first transmission mechanism (61) and the second transmission mechanism (15) do not rotate, so that the first transmission mechanism (61) and the second transmission mechanism (15) achieve the purpose of intermittent transmission; S4, during the intermittent transmission of the first transmission mechanism (61) and the second transmission mechanism (15), the soft-pack lithium battery cell between the two partitions (62) falls onto the second transmission mechanism (15), and the second transmission mechanism (15) pushes the soft-pack lithium battery cell under the heating base (17) and the heating plate (18). Since the heating base (17) is supported by the elastic force of the spring (213), the heating plate (18) is closely attached to the soft-pack lithium battery cell. At the same time, the soft-pack lithium battery cell rotates to smooth and tighten the packaging film sleeved on the outer wall of the lithium battery cell, and to discharge the bubbles generated between the packaging film and the lithium battery cell. After the heating plate (18) reaches the requirement of 200° C., the soft-pack lithium battery cell is externally packaged. Then, the two side sealing heating blocks (20) on the right side of the heating base (17) perform side sealing on both ends of the soft-pack lithium battery cell. S5. After the packaging process of the soft-pack lithium battery cell is completed, the soft-pack lithium battery cell is transferred to the protective cover (22) by the second transmission mechanism (15). First, the cooling fan (232) is controlled to work so that cold air is ejected from the air cover (231) and the packaged soft-pack lithium battery cell is cooled. Then, the packaging appearance of the soft-pack lithium battery cell is inspected by the visual inspection mechanism (24); S6. When the visual inspection mechanism (24) detects that the packaging is qualified, the visual inspection mechanism (24) transmits a signal to the controller, and the controller controls the drive motor (261) to rotate forward, so that the soft-pack lithium battery cell slides through the unloading plate (262) to the lower storage box (28); when the packaging is detected to be unqualified, the visual inspection mechanism (24) transmits a signal to the controller, and the controller controls the drive motor (261) to rotate reversely, adjusts the inclination angle of the unloading plate (262), so that the soft-pack lithium battery cell slides through the unloading plate (262) to the upper storage box (28); when the visual inspection mechanism (24) does not perform the inspection work, the controller controls the drive motor (261) to return the unloading plate (262) to the initial position.

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