Automatic battery cell drying equipment

Abstract

The invention discloses automatic battery cell drying equipment. The automatic battery cell drying equipment comprises a drying frame, a movable frame, a first driving assembly, a material frame, a second driving assembly, a fan and a heating device, the material frames are arranged on the movable frame in the mode that the material frames can move outwards out of the drying cavity through the feeding opening and move up and down to and fro along with the movable frame to change the trays, and the multiple material frames are arranged up and down at intervals. The second driving assembly is arranged on the drying device and drives the material frame to move back and forth to enter and exit from the feeding opening; according to the automatic material rack drying device, when the multiple material racks are dried in the drying cavity, only one material rack needs to move outwards to be out of the feeding opening and is matched with an external mechanical arm to conduct automatic discharging and feeding, after automatic discharging and feeding are completed, the material rack which is dried firstly is dried accordingly, and then the material rack which is subjected to disc changing continues to be dried and go up and down; the drying efficiency is improved, the overall automation degree of the equipment is high, and the equipment cost and the operation cost can be reduced.

Description

Technical Field

[0001] This invention relates to the field of battery cell processing technology, specifically to an automatic battery cell drying device. Background Technology

[0002] Cell drying refers to the process of heating and / or vacuuming the assembled but unfilled "bare cells" before they are injected with electrolyte to completely remove trace amounts of residual moisture. Moisture in cells is like "poison," affecting their safety, lifespan, and performance in all aspects, from chemical stability to physical structure. To meet the stringent requirements for ultimate safety, high performance, and long lifespan of cells, the industry must adopt efficient, uniform, and controllable automated drying technologies under the trend of large-scale intelligent manufacturing to completely eliminate the various hazards caused by moisture.

[0003] Automatic cell drying methods are mainly divided into two types: hot air circulation drying and vacuum drying. Hot air circulation drying mainly generates high-temperature clean dry air through heating, and uses a fan to circulate it in a closed drying oven. The battery cells are heated through convection heat exchange, causing the moisture to evaporate and be carried away by the airflow. Hot air circulation drying equipment has a relatively simple structure, does not have high requirements for external conditions, can produce continuously, has high efficiency and large capacity, and has relatively low equipment and operating costs.

[0004] Vacuum drying mainly involves placing the battery cells in a sealed vacuum furnace and evacuating them to a very high vacuum level, while simultaneously heating them. The vacuum environment significantly lowers the boiling point of water, allowing the moisture to vaporize rapidly at a lower temperature and be removed. Vacuum drying requires a vacuum environment, is a batch production process, has a long cycle time, and necessitates precise production scheduling to match the overall production line pace. Consequently, the investment and operating costs of the equipment are relatively high.

[0005] Therefore, it is necessary to provide an automatic battery cell drying device that uses a hot air circulation drying method. Summary of the Invention

[0006] The purpose of this invention is to provide an automatic battery cell drying device to solve the problems mentioned in the background art.

[0007] By adopting the above technical solution, the battery cells are dried inside the drying equipment while the battery cells are being automatically loaded and unloaded in cooperation with the external robotic arm. The processing efficiency of the drying rack is also effectively improved, and the overall automation level of the equipment is higher.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: An automatic battery cell drying device includes a drying rack, a movable rack, a first drive assembly, a material rack, a second drive assembly, a fan, and a heating device. The drying rack has a drying chamber inside, and a feeding port communicating with the drying chamber is opened on one side of the drying rack. A circulating air duct is provided outside the drying rack, with both ends of the circulating air duct communicating with the drying chamber. The movable rack is movably mounted up and down in the drying chamber, and the first drive assembly is mounted on the drying rack and drives the movable rack to move up and down. The material rack is mounted on the movable rack, extending outwards from the drying chamber through the feeding port, and moves up and down with the movable rack; multiple material racks are arranged vertically at intervals. The second drive assembly is mounted on the drying rack and drives the material rack to move back and forth. The fan is located in the circulating air duct and provides power for the circulation of air inside the drying chamber. The heating device is connected to the circulating air duct and is used to heat the air circulating in the circulating air duct.

[0009] As a preferred embodiment, the movable frame has a vertically extending fixed rod, and a plurality of first magnetic elements are arranged vertically at intervals on the side of the fixed rod facing the material rack. The material rack is made of a material that can be magnetically attracted by the magnetic elements, and each first magnetic element cooperates with the corresponding material rack position. The first driving assembly has a first driving mechanism, which is mounted on the drying rack and drives the fixed rod to move up and down back and forth.

[0010] As a preferred embodiment, the second drive assembly includes a feeding head, a second magnetic component, a second drive motor, and a transmission engagement chain. The feeding head is movably mounted on the drying rack and drives the rack to move back and forth. The second magnetic component is mounted on the feeding head and located outside the first magnetic component relative to the rack. The second drive motor is mounted on the drying rack, and the transmission engagement chain connects the output end of the second drive motor and the feeding head, driving the feeding head to move back and forth.

[0011] As a preferred embodiment, the drying chamber is provided with first slide rails extending vertically on both the left and right sides, and the movable frame is provided with slide seats that cooperate with the first slide rails.

[0012] As a preferred embodiment, the movable frame is provided with second slide rails extending forward and backward on both the left and right sides, and the material rack is provided with sliding parts on both sides that cooperate with the second slide rails.

[0013] As a preferred embodiment, a door panel that moves up and down is provided on the outside of the feeding port. The door panel moves up and down at the feeding port and opens or seals the opening of the feeding port by being driven by a third drive mechanism.

[0014] As a preferred embodiment, a first temperature measuring head is provided on the upper part of the drying rack, and the inner end of the first temperature measuring head extends inward into the drying chamber.

[0015] As a preferred embodiment, an exhaust valve is provided on the upper part of the drying rack, and the inner end of the exhaust valve extends into the drying chamber and communicates with the drying chamber.

[0016] As a preferred embodiment, the circulating air duct is equipped with a second temperature measuring head for measuring the temperature inside the circulating air duct, and the heating device is equipped with a third temperature measuring head for measuring the temperature inside the heating device.

[0017] As a preferred embodiment, the bottom of the material rack has multiple through holes arranged in an array.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: Multiple material racks are arranged vertically and alternately, with the material racks movable outward from the loading port to open into the drying chamber and moving back and forth with the moving frame to change trays. A second drive assembly is installed on the drying rack and drives it to move back and forth in and out of the loading port. This invention allows multiple material racks to be dried in the drying chamber simultaneously, with only one rack needing to move outward from the loading port. An external robotic arm automatically unloads and loads the material. After automatic unloading and loading, the first rack to be dried is also dried, and then the tray-changing rack continues drying and moving up and down. This invention not only improves drying efficiency but also increases the overall automation level of the equipment, further reducing equipment and operating costs. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of a preferred embodiment of the present invention; Figure 2 This is a three-dimensional structural schematic diagram of a preferred embodiment of the present invention from another angle; Figure 3 This is a partial assembly diagram of a preferred embodiment of the present invention; Figure 4 yes Figure 3 Enlarged diagram of point A in the middle.

[0020] In the diagram: 10. Drying rack; 101. Drying chamber; 102. Feeding port; 11. Circulating air duct; 12. First slide rail; 13. Door panel; 14. Third drive mechanism; 15. First temperature measuring head; 16. Exhaust valve; 17. Second temperature measuring head; 20. Movable frame; 21. Fixed rod; 22. First magnetic component; 23. Slide seat; 24. Second slide rail; 30. First drive assembly; 31. First drive mechanism; 40. Material rack; 401. Through hole; 41. Sliding part; 50. Second drive assembly; 51. Feeding head; 52. Second magnetic component; 53. Second drive motor; 54. Transmission engagement chain; 60. Fan; 70. Heating device; 71. Third temperature measuring head. Detailed Implementation

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

[0022] Please see Figure 1-4 The present invention provides a technical solution: an automatic battery cell drying device, comprising a drying rack 10, a movable rack 20, a first drive assembly 30, a material rack 40, a second drive assembly 50, a fan 60, and a heating device 70.

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figure 1-4 The present invention provides a technical solution: an automatic battery cell drying device, comprising a drying rack 10, a movable rack 20, a first drive assembly 30, a material rack 40, a second drive assembly 50, a fan 60, and a heating device 70.

[0025] The drying rack 10 has a drying chamber 101 inside, and a loading port 102 communicating with the drying chamber 101 is opened on one side of the drying rack 10. A circulating air duct 11 is provided outside the drying rack 10, and the two ends of the circulating air duct 11 are respectively connected to the drying chamber 101, thereby realizing the circulation of air inside the drying chamber 101. In this embodiment, the drying chamber 101 is provided with vertically extending first slide rails 12 on the left and right sides. A door panel 13 that moves up and down is provided outside the loading port 102. The door panel 13 moves up and down around the loading port 102 and opens or seals the opening of the loading port 102 by being driven by a third drive mechanism 14, ensuring the airtightness of the drying chamber 101 when no loading or unloading is being performed. In actual processing, the front end of the drying chamber 101 is sealed by a cover plate. A first temperature measuring head 15 is provided on the upper part of the drying rack 10. The inner end of the first temperature measuring head 15 extends inward into the drying chamber 101. The first temperature measuring head 15 continuously monitors the temperature inside the drying chamber 101 and, in conjunction with the heating device 70, adjusts the temperature inside the drying chamber 101. An exhaust valve 16 is provided on the upper part of the drying rack 10. The inner end of the exhaust valve 16 extends inward into the drying chamber 101 and communicates with the drying chamber 101. A second temperature measuring head 17 is provided on the circulating air duct 11 for measuring the temperature inside the circulating air duct 11.

[0026] The movable frame 20 is movably mounted in the drying chamber 101. In this embodiment, the movable frame 20 has a vertically extending fixed rod 21. Multiple first magnetic elements 22, spaced vertically, are arranged on the side of the fixed rod 21 facing the material rack 30. The material rack 40 is made of a magnetically attractable material, and each first magnetic element 22 mates with a corresponding material rack 40 position. The material rack 40 is positioned vertically with the movable frame 20 through magnetic attraction with the first magnetic elements 22. The movable frame 20 is equipped with a slide block 23 that mates with the first slide rail 12. Second slide rails 24, extending forward and backward, are provided on the left and right sides of the movable frame 20.

[0027] The first drive assembly 30 is mounted on the drying rack 10 and drives the movable frame 20 to move up and down. In this embodiment, the first drive assembly 30 has a first drive mechanism 31, which is mounted on the drying rack 10 and drives the fixed rod 21 to move up and down. Further, the first drive assembly 30 also includes a transmission screw 32 and a screw nut 33; the first drive motor 31 is mounted on the drying rack 10 and drives the fixed rod 21 to move up and down via the transmission screw 32 and screw nut 33.

[0028] The material rack 40 is mounted on the movable frame 20 and is movable outward from the loading port 102 to extend into the drying chamber 101. It moves up and down with the movable frame 20. Multiple material racks 40 are arranged vertically at intervals. In this embodiment, sliding parts 41 that cooperate with the second slide rail 24 are provided on both sides of the material rack 40. The cooperation between the sliding parts 41 and the second slide rail 24 makes the movement of the material rack 40 on the movable frame 20 more stable, preventing the battery cells from tipping over during movement. Multiple through holes 401 arranged in an array are passed through the bottom of the material rack 40, facilitating the removal of residual moisture from the battery cells by hot air.

[0029] The second drive assembly 50 is mounted on the drying rack 10 and drives the material rack 40 to move back and forth. In this embodiment, the second drive assembly 50 includes a feeding head 51, a second magnetic element 52, a second drive motor 53, and a transmission engagement chain 54. The feeding head 51 is mounted on the drying rack 10 and can move back and forth towards the material rack 40, driving the material rack 40 to move back and forth. The second magnetic element 52 is mounted on the feeding head 51 and is located outside the first magnetic element 22 relative to the material rack 40. The second drive motor 53 is mounted on the drying rack 10. The transmission engagement chain 54 connects the output end of the second drive motor 53 and the feeding head 51 and drives the feeding head 51 to move back and forth. When the second drive assembly 50 drives the material rack 40 to move outward, the material rack 40 is magnetically attracted and fixed to the first magnetic element 22 on the fixing rod 21. The second magnetic component 52 is located outside the first magnetic component 22. Then, the second drive motor 53 drives the feeding head 51 and the second magnetic component 52 towards the material rack 40 until the second magnetic component 52 contacts and magnetically attracts the material rack 40. The movement continues, and then the second magnetic component 52 pushes the material rack 40 away from the first magnetic component 22 and moves out of the drying chamber 101. This completes the process of first unloading the dried battery cells from the current material rack 40, and then loading the undried battery cells. Afterwards, the second magnetic component 52, through magnetic attraction with the material rack 40, drives the material rack to reset. During the reset process, the material rack 40 contacts the first magnetic component 22, and then the second magnetic component 52 continues to move backward until it detaches from the material rack 40. The up-and-down movement of the movable frame 20 completes the loading and unloading process of battery cells on other material racks 40. Both the first magnetic component 22 and the second magnetic component 52 are high-temperature magnets.

[0030] The fan 60 is installed in the circulating air duct 11 and provides power for the circulation of air inside the drying chamber 101. The heating device 70 is connected to the circulating air duct 11 and is used to heat the air flowing in the circulating air duct 11, dry the humid air in the circulating air duct 11, and send the dry, high-temperature air into the drying chamber 101 to realize the drying process of the battery cells. The heating device 70 is equipped with a third temperature measuring head 71 for measuring the internal temperature of the heating device 70, which, together with the second temperature measuring head 17, monitors the temperature at various points inside the circulating air duct 11 and adjusts the temperature through the heating device 70.

Claims

1. An automatic battery cell drying device, characterized in that: The system includes a drying rack, a movable rack, a first drive assembly, a material rack, a second drive assembly, a fan, and a heating device. The drying rack has a drying chamber inside, and a feeding port communicating with the drying chamber is located on one side of the drying rack. A circulating air duct is provided outside the drying rack, with both ends communicating with the drying chamber. The movable rack is movably mounted up and down within the drying chamber, and the first drive assembly is mounted on the drying rack and drives the movable rack to move up and down. Multiple material racks are arranged vertically at intervals, and the second drive assembly is mounted on the drying rack and drives the material rack to move back and forth. The fan is located within the circulating air duct. The circulating air duct provides power for the circulation of air inside the drying chamber; the heating device is connected to the circulating air duct and is used to heat the air flowing in the circulating air duct; the movable frame has a vertically extending fixed rod, and a plurality of first magnetic elements are arranged vertically at intervals on the side of the fixed rod facing the material rack. The material rack is made of a material that can be magnetically attracted by the magnetic elements, and each first magnetic element cooperates with the corresponding material rack position; the first drive assembly has a first drive mechanism, which is set on the drying frame and drives the fixed rod to move up and down back and forth; a door panel that moves up and down back and forth is provided on the outside of the feeding port. The door panel moves up and down back and forth at the feeding port through the drive of a third drive mechanism and opens or seals the opening of the feeding port.

2. The automatic cell drying equipment according to claim 1, characterized in that: The second drive assembly includes a feeding head, a second magnetic component, a second drive motor, and a transmission engagement chain. The feeding head is movably mounted on the drying rack and drives the rack to move back and forth. The second magnetic component is mounted on the feeding head and located outside the first magnetic component relative to the rack. The second drive motor is mounted on the drying rack. The transmission engagement chain connects the output end of the second drive motor and the feeding head and drives the feeding head to move back and forth.

3. The automatic cell drying equipment according to claim 1, characterized in that: The drying chamber is provided with first slide rails extending vertically on both the left and right sides, and the movable frame is provided with slide seats that cooperate with the first slide rails.

4. The automatic cell drying equipment according to claim 1, characterized in that: The movable frame is provided with second slide rails extending forward and backward on both the left and right sides, and the material rack is provided with sliding parts on both sides that cooperate with the two slide rails.

5. The automatic cell drying equipment according to claim 1, characterized in that: The upper part of the drying rack is provided with a first temperature measuring head, the inner end of which extends into the drying chamber.

6. The automatic cell drying equipment according to claim 1, characterized in that: An exhaust valve is provided on the upper part of the drying rack, and the inner end of the exhaust valve extends into the drying chamber and communicates with the drying chamber.

7. The automatic cell drying equipment according to claim 1, characterized in that: The circulating air duct is equipped with a second temperature measuring head for measuring the temperature inside the circulating air duct, and the heating device is equipped with a third temperature measuring head for measuring the temperature inside the heating device.

8. The automatic cell drying equipment according to claim 1, characterized in that: The bottom of the material rack has multiple through holes arranged in an array.

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