A rapid toasting apparatus

Abstract

The application relates to a rapid baking device and relates to the technical field of battery cell production. The device comprises a workbench, the surface of the workbench is provided with a bottom heating plate, the two sides of the bottom heating plate are provided with side heating plates, the surface of the workbench is further provided with two adjusting cylinders, the adjusting cylinders and the side heating plates are one-to-one corresponding, the piston rod of the adjusting cylinder is connected with the corresponding side heating plate, the bottom heating plate is arranged between the two adjusting cylinders, and the adjusting cylinders are used for driving the side heating plates to move relative to the bottom heating plate. The application has the effects of improving the baking efficiency of the battery cell and improving the overall production efficiency of the lithium battery.

Description

Technical Field

[0001] This application relates to the field of battery cell manufacturing technology, and in particular to a device for rapid baking. Background Technology

[0002] The battery cell is the core energy storage unit of a battery system. It is usually composed of a positive electrode, a negative electrode, an electrolyte, and a separator. It converts chemical energy into electrical energy through chemical reactions. Its performance directly determines the battery's key indicators such as energy density, cycle life, and safety. It is widely used in consumer electronics, electric vehicles, energy storage systems, and other fields.

[0003] Moisture has a significant impact on the performance of lithium batteries, leading to unstable voltage, increased internal resistance, accelerated self-discharge, and even product failure or explosion. Therefore, cell baking is a critical process in lithium battery production, designed to remove moisture from the cells and ensure battery performance and safety. During the baking process, the orientation of the heating plate affects the efficiency of cell baking. Existing baking devices have a small baking contact area, slow heat conduction, and long moisture drying time, which affects the overall production efficiency of lithium batteries and needs to be improved. Utility Model Content

[0004] In order to improve the baking efficiency of battery cells and thus enhance the overall production efficiency of lithium batteries, this application provides a rapid baking device.

[0005] The rapid baking device provided in this application adopts the following technical solution:

[0006] A rapid baking device includes a workbench with a bottom heating plate on its surface and side heating plates on both sides of the bottom heating plate. Two adjusting cylinders are also provided on the workbench surface, each corresponding to a side heating plate. The piston rod of each adjusting cylinder is connected to the corresponding side heating plate. The bottom heating plate is positioned between the two adjusting cylinders, and the adjusting cylinders are used to move the side heating plates relative to the bottom heating plate.

[0007] By adopting the above technical solution, side heating plates and bottom heating plates are set to form three-sided heating, which can realize rapid heating of the battery cell and thus effectively improve the baking efficiency. At the same time, the adjustment cylinder can drive the side heating plate to move, which facilitates the placement and removal of the battery cell and has high convenience.

[0008] Preferably, limit plates are provided on both sides of the bottom heating plate, and limit tracks are provided on the surface of the limit plates. The length direction of the limit tracks is consistent with the length direction of the piston rod of the adjusting cylinder. A connecting rod is provided on the opposite side of the two side heating plates. A limit block is provided at the end of the connecting rod away from the side heating plate. The limit block is slidably connected to the limit track.

[0009] By adopting the above technical solution, the setting of the limiting plate, limiting track and limiting block can restrict the movement direction of the side heating plate, thereby ensuring the stable operation of the side heating plate and enabling the side heating plate to stably bake the battery cell.

[0010] Preferably, the bottom heating plate has support blocks on both sides of the sidewalls, the support blocks have relief grooves on their surfaces, a sealing block is slidably connected in the relief grooves, the bottom of the sealing block has an elastic element, the elastic element keeps the sealing block moving out of the relief grooves, and the sealing block has an abutting slope on the side away from the bottom heating plate.

[0011] By adopting the above technical solution, when the side heating plate moves above the bottom heating plate, the side heating plate will abut against the inclined surface. As the side heating plate continues to move, the sealing block can enter the relief groove. Under the action of the elastic element, the sealing block can continuously abut against the bottom of the side heating plate, thereby preventing heat loss between the two side heating plates and maintaining baking efficiency.

[0012] Preferably, the elastic element includes a guide rod and a return spring. The guide rod is vertically connected to the bottom wall of the sealing block. The bottom wall of the relief groove has a guide hole for the guide rod to be inserted. A limit post is provided at the bottom end of the guide rod. The diameter of the limit post is larger than the diameter of the guide rod. A limit hole is provided at the bottom of the guide hole for the limit post to slide. The return spring is sleeved on the peripheral wall of the guide rod and abuts against the bottom wall of the sealing block and the bottom wall of the relief groove.

[0013] By adopting the above technical solution, the reset spring is used to reset the sealing block so that the sealing block pops out when the side heating plate detaches from the bottom heating plate. Under the action of the limiting post and the limiting hole, the movement distance of the sealing block can be limited, thereby maintaining the stability of the sealing block.

[0014] Preferably, a motion mechanism is provided above the worktable, and the motion mechanism is provided with a gripper mechanism for moving the battery cell.

[0015] By adopting the above technical solution, the motion mechanism and the gripper mechanism work together to achieve the clamping and movement of the battery cell, which facilitates the clamping and movement of the battery cell with a high temperature on the surface after drying, avoids burns to the staff, and improves the safety of the rapid baking equipment of this application.

[0016] Preferably, the surface of the workbench is provided with an embedding groove for the bottom heating plate to be protected.

[0017] By adopting the above technical solution, an embedded groove is set for the bottom heating plate, which can keep the bottom heating plate stable and improve the stability and safety of drying the battery cells.

[0018] Preferably, the piston rod end of the regulating cylinder is provided with a connecting flange, which is connected to the side heating plate.

[0019] By adopting the above technical solution, a connecting flange is set to make the adjusting cylinder and the side heating plate detachably connected, thereby facilitating the disassembly of the side heating plate and improving maintenance efficiency.

[0020] Preferably, the bottom wall of the workbench is provided with several buffer support legs.

[0021] By adopting the above technical solution, the buffer support feet can maintain the stability of the worktable in the working state, reduce the vibration of the worktable caused by the adjustment cylinder on the worktable surface, and improve safety.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The side heating plate and bottom heating plate are set to form a three-sided heating, which can realize the rapid heating of the battery cell and thus effectively improve the baking efficiency. At the same time, the adjustment cylinder is set to move the side heating plate, which facilitates the placement and removal of the battery cell and has high convenience.

[0024] 2. Setting a limit plate, a limit track, and a limit block can restrict the movement direction of the side heating plate, thereby ensuring the stable operation of the side heating plate and enabling the side heating plate to stably bake the battery cell. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a rapid baking device according to an embodiment of this application.

[0026] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle.

[0027] Explanation of reference numerals in the attached drawings: 1. Workbench; 2. Bottom heating plate; 3. Side heating plate; 4. Adjusting cylinder; 5. Limiting plate; 6. Limiting track; 7. Connecting rod; 8. Limiting block; 9. Support block; 10. Relief groove; 11. Sealing block; 12. Elastic element; 1201. Guide rod; 1202. Return spring; 1203. Guide hole; 1204. Limiting post; 1205. Limiting hole; 13. Abutting slope; 14. Motion mechanism; 15. Gripper mechanism; 16. Embedding groove; 17. Connecting flange; 18. Buffer support foot. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0029] This application discloses a rapid baking apparatus. (See also...) Figure 1 and Figure 2 The system includes a workbench 1, and the bottom wall of the workbench 1 is provided with several buffer support feet 18. In this embodiment, the buffer support feet 18 are made of rubber to buffer and reduce shock on the workbench 1 when other components on the surface of the workbench 1 are working, thereby improving safety.

[0030] Reference Figure 1 and Figure 2 The workbench 1 has an inlay groove 16 on its surface, and a bottom heating plate 2 is installed in the inlay groove 16. When the bottom heating plate 2 is powered on, it can bake the bottom of the battery cell. Side heating plates 3 are provided on both sides of the bottom heating plate 2 for baking the side walls of the battery cell when powered on. Two adjusting cylinders 4 are provided on the surface of the workbench 1, and the adjusting cylinders 4 and the side heating plates 3 are arranged one-to-one. The piston rod end of the adjusting cylinder 4 is provided with a connecting flange 17, which is used to connect with the side heating plates 3 so as to quickly disassemble and install the side heating plates 3.

[0031] Reference Figure 1 and Figure 2 Limiting plates 5 are provided on both sides of the bottom heating plate 2. Limiting rails 6 are provided on the surface of the limiting plates 5. The length direction of the limiting rails 6 is consistent with the running direction of the piston rod of the adjusting cylinder 4. Limiting blocks 8 are slidably connected on the limiting rails 6. A connecting rod 7 is provided on the side of the limiting block 8 facing the side heating plate 3. The other end of the connecting rod 7 is connected to the side heating plate 3 by bolts to limit the movement trajectory of the side heating plate 3, thereby maintaining the stability of the side heating plate 3.

[0032] Reference Figure 1 and Figure 2The bottom heating plate 2 has support blocks 9 on both sides of its sidewalls. Each support block 9 has a relief groove 10 on its surface. A sealing block 11 is slidably connected within the relief groove 10. An elastic element 12 is located at the bottom of the sealing block 11. Under the action of the elastic element 12, the sealing block 11 maintains a tendency to move away from the relief groove 10. The elastic element 12 includes a guide rod 1201 and a return spring 1202. The guide rod 1201 is vertically connected to the bottom wall of the sealing block 11. The bottom wall of the relief groove 10 has a guide hole 1203 for the guide rod 1201 to abut. The bottom wall of the guide rod 1201 is provided with... A limiting post 1204 is provided, the diameter of which is larger than that of the guide rod 1201. A limiting hole 1205 is provided on the bottom wall of the guide hole 1203 to allow the limiting post 1204 to slide, thereby limiting the movement distance of the sealing block 11. A return spring 1202 is sleeved on the circumferential wall of the guide rod 1201 and abuts against the bottom wall of the sealing block 11 and the bottom wall of the relief groove 10. An abutting inclined surface 13 is provided on the side of the sealing block 11 away from the bottom heating plate 2 so as to contact the side heating plate 3, thereby facilitating the movement of the sealing block 11.

[0033] Reference Figure 1 and Figure 2 A motion mechanism 14 is provided above the workbench 1. In this embodiment, the motion mechanism 14 adopts linear guide rails in the XY direction and lifting cylinders to achieve movement in three directions. A gripper mechanism 15 is provided on the motion mechanism 14 to clamp and move the battery cell.

[0034] The implementation principle of the rapid baking device in this application embodiment is as follows: the motion mechanism 14 and the gripper mechanism 15 operate, driving the battery cell to be heated to be placed on the surface of the bottom heating plate 2. The adjusting cylinders 4 on both sides are activated, driving the side heating plate 3 to move towards the battery cell until it abuts against the side wall of the battery cell. The side heating plate 3 and the bottom heating plate 2 are energized to bake the battery cell to remove its internal moisture. After baking is completed, the adjusting cylinder 4 is reset, and the gripper mechanism 15 continues to move to remove the baked battery cell. This application sets up a side heating plate 3 and a bottom heating plate 2 to form three-sided heating, which can realize rapid heating of the battery cell and thus effectively improve baking efficiency. At the same time, the adjusting cylinder 4 can drive the side heating plate 3 to move, which facilitates the placement and removal of the battery cell and has high convenience.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rapid baking device, characterized in that: The device includes a workbench with a bottom heating plate on its surface and side heating plates on both sides of the bottom heating plate. The workbench surface is also equipped with two adjusting cylinders, which correspond one-to-one with the side heating plates. The piston rod of the adjusting cylinder is connected to the corresponding side heating plate. The bottom heating plate is located between the two adjusting cylinders, and the adjusting cylinders are used to move the side heating plates relative to the bottom heating plate.

2. The rapid baking device according to claim 1, characterized in that: Limiting plates are provided on both sides of the bottom heating plate, and limiting tracks are provided on the surface of the limiting plates. The length direction of the limiting tracks is consistent with the length direction of the piston rod of the adjusting cylinder. A connecting rod is provided on the opposite side of the two side heating plates. A limiting block is provided at the end of the connecting rod away from the side heating plate. The limiting block is slidably connected to the limiting track.

3. The rapid baking apparatus according to claim 1, characterized in that: Support blocks are provided on both sides of the bottom heating plate. A relief groove is provided on the surface of the support block. A sealing block is slidably connected in the relief groove. An elastic element is provided at the bottom of the sealing block. The elastic element keeps the sealing block moving out of the relief groove. An abutting slope is provided on the side of the sealing block away from the bottom heating plate.

4. The rapid baking apparatus according to claim 3, characterized in that: The elastic element includes a guide rod and a return spring. The guide rod is vertically connected to the bottom wall of the sealing block. The bottom wall of the relief groove has a guide hole for the guide rod to be inserted. A limit post is provided at the bottom end of the guide rod. The diameter of the limit post is larger than the diameter of the guide rod. A limit hole is provided at the bottom of the guide hole for the limit post to slide. The return spring is sleeved on the peripheral wall of the guide rod and abuts against the bottom wall of the sealing block and the bottom wall of the relief groove.

5. The rapid baking apparatus according to claim 1, characterized in that: A motion mechanism is provided above the workbench, and a gripper mechanism for moving the battery cell is provided on the motion mechanism.

6. The rapid baking apparatus according to claim 1, characterized in that: The surface of the workbench is provided with an embedded groove for the bottom heating plate to be placed in.

7. The rapid baking apparatus according to claim 1, characterized in that: The piston rod end of the regulating cylinder is provided with a connecting flange, which is connected to the side heating plate.

8. The rapid baking apparatus according to claim 1, characterized in that: The bottom wall of the workbench is provided with several buffer support legs.

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