Manufacturing and drying mechanism for silicon-carbon negative pole piece

Abstract

The utility model relates to a manufacturing and drying mechanism for a silicon-carbon negative pole piece, which belongs to the field of drying of the silicon-carbon negative pole piece and comprises a drying box, a hot air component is arranged at the top of the drying box, and a shunting and blowing mechanism is arranged in the drying box. The flow dividing and blowing mechanism comprises a flow dividing cover shell, the flow dividing cover shell is fixed to the side wall of the drying box, and a plurality of air outlet pipes are fixed to one side of the flow dividing cover shell in a penetrating mode. According to the manufacturing and drying mechanism for the silicon-carbon negative pole pieces, the clamping plates on the two sides of the screen plates where the silicon-carbon negative pole pieces are placed slide into the sliding grooves, the multiple screen plates can be distributed in the drying box up and down, air in the environment is pumped through the draught fan, the air is heated through the electric heating wires to form hot air, and then the hot air is conveyed into the flow dividing housing; therefore, hot air can be divided into each fan cover, and the hot air can be blown out to uniformly dry each layer of negative plates, so that not only is the drying efficiency improved, but also the negative plates are dried more uniformly.

Description

Technical Field

[0001] The utility model relates to the technical field of drying silicon-carbon negative electrode pieces, in particular to a manufacturing and drying mechanism for silicon-carbon negative electrode pieces. Background Art

[0002] The negative electrode sheet usually refers to an electrode sheet with a high potential that contains active substances that undergo reduction reactions during discharge. The research on power lithium-ion batteries in my country is in a stage of rapid development. Lithium-ion batteries have shifted from the application field of small electronic products to the field of high-power power lithium batteries. At the same time, new requirements have been put forward for the negative electrode materials of lithium-ion batteries. As an important component of lithium-ion batteries, the negative electrode material greatly affects the overall performance of lithium-ion batteries. Silicon-carbon negative electrode materials are considered to be a strong competitor for future lithium battery negative electrode materials due to their higher energy density, fast charging capability and longer cycle life than traditional graphite materials.

[0003] According to Chinese patent announcement No. CN221208816U, a lithium battery negative electrode sheet drying box includes a box body, a box door arranged on the front of the box body, a controller arranged on the box door, a drying net arranged in the box body, a left wind seat and a right wind seat arranged above the drying net, a displacement mechanism used to drive the left wind seat and the right wind seat to move closer to or away from each other, the bottom of the left wind seat and the right wind seat are both provided with wind nets, and the left wind seat, the right wind seat and the displacement mechanism are all electrically connected to the controller.

[0004] During use, the drying device in this announcement dries the negative electrode sheets placed on the drying net through a movable air seat, and the drying net is stuck in the box through a groove in the box, so multiple drying nets can be set up up and down. However, since the air seat is located at the top, the hot air blown out needs to flow from the top to the bottom in sequence, which results in the negative electrode sheets located on the lower side of the box having a lower drying efficiency than the negative electrode sheets close to the air seat. Therefore, a manufacturing and drying mechanism for silicon-carbon negative electrode sheets is proposed. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the utility model provides a manufacturing and drying mechanism for silicon-carbon negative electrode sheets, which has the advantages of high drying efficiency and more uniform drying.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a manufacturing and drying mechanism for silicon-carbon negative electrode sheets, comprising a drying box, a hot air assembly being provided on the top of the drying box, and a diversion blowing mechanism being provided inside the drying box.

[0007] The diversion blowing mechanism includes a diversion cover, which is fixed on the side wall of the drying box. A plurality of air outlet pipes are fixed through one side of the diversion cover. The end of the air outlet pipe away from the diversion cover passes through the drying box to extend to the interior and is rotatably connected to a wind hood. A rotating rod is fixed on the side of the wind hood away from the air outlet pipe. The end of the rotating rod away from the air outlet pipe passes through the drying box to the outside. The bottom of the wind hood is opened with multiple parts, and the side wall of the drying box is provided with a driving part that can drive the wind hood to rotate back and forth to adjust the blowing angle.

[0008] Furthermore, the hot air assembly includes a heating box, which is fixed on the top of the drying box, a fan is installed inside the heating box, a dust net is removably installed on the right side of the heating box, an electric heating wire is provided on the left side of the heating box, and an isolation mesh plate is fixed inside the heating box between the electric heating wire and the fan.

[0009] Furthermore, an air outlet hood is embedded and fixed on the side of the heating box away from the dustproof net, an air supply pipe is fixed on the side of the air outlet hood away from the heating box, and one end of the air supply pipe away from the air outlet hood is passed through and fixed on the diversion cover.

[0010] Furthermore, the driving component includes a servo motor, a support plate is installed at the bottom of the servo motor, the support plate is fixed on the side wall of the drying box, the output shaft of the servo motor is fixedly connected to the middle rotating rod, a driving wheel is fixed on the outside of the middle rotating rod, and a transmission belt is connected to the left and right sides of the outside of the driving wheel.

[0011] Furthermore, driven wheels are fixed to the outside of the rotating rods on the upper and lower sides, and the side of the transmission belt away from the driving wheel is transmission-connected to the outside of the driven wheel.

[0012] Furthermore, an air outlet net is embedded and fixed at the bottom of the drying box, a door is hinged on the front of the drying box, and multiple slide grooves are opened on the left and right inner walls of the drying box. The inside of the slide grooves is slidably connected with a clamping plate, and a mesh plate is fixed between every two of the clamping plates.

[0013] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0014] The manufacturing and drying mechanism of the silicon-carbon negative electrode sheet slides the clamping plates on both sides of the mesh sheet with the silicon-carbon negative electrode sheet into the interior of the slide slot, so that multiple mesh sheets can be distributed up and down in the drying box. The air in the environment is drawn by the fan, heated by the electric heating wire to form hot air, and then transported to the interior of the diversion cover, so that the hot air can be diverted into each wind cover, so that the hot air can be blown out and evenly dry each layer of the negative electrode sheet at the same time, which not only improves the drying efficiency but also dries the negative electrode sheet more evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is a cross-sectional view of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the hot air component of the utility model structure;

[0017] Figure 3 For the utility model structure Figure 1 A magnified view of the structure at point A;

[0018] Figure 4 For the utility model structure Figure 1 Front view of

[0019] Figure 5 It is a three-dimensional diagram of the wind shield of the utility model structure.

[0020] In the figure: 1. Drying box; 2. Hot air assembly; 21. Heating box; 22. Dust screen; 23. Fan; 24. Isolation mesh plate; 25. Electric heating wire; 26. Air outlet hood; 27. Air supply pipe; 3. Mesh plate; 4. Clamping plate; 5. Slide; 6. Diverter cover; 7. Air outlet pipe; 8. Air hood; 9. Rotating rod; 10. Driven pulley; 11. Transmission belt; 12. Servo motor; 13. Driving pulley; 14. Rotating ring block; 15. Box door. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1 to 5 In this embodiment, a drying mechanism for manufacturing a silicon-carbon negative electrode sheet includes a drying box 1, a hot air component 2 is provided on the top of the drying box 1, and a diversion blowing mechanism is provided inside the drying box 1.

[0023] The diversion blowing mechanism includes a diversion cover 6, which is fixed on the side wall of the drying box 1. A plurality of air outlet pipes 7 are fixed through one side of the diversion cover 6. The end of the air outlet pipe 7 away from the diversion cover 6 passes through the drying box 1 and extends to the inside and is rotatably connected to a wind hood 8. A rotating rod 9 is fixed on the side of the wind hood 8 away from the air outlet pipe 7. The end of the rotating rod 9 away from the air outlet pipe 7 passes through the drying box 1 and extends to the outside. A plurality of 81 are provided at the bottom of the wind hood 8. The side wall of the drying box 1 is provided with a driving component that can drive the wind hood 8 to rotate back and forth to adjust the blowing angle.

[0024] A rotating ring block 14 is fixed to the outside of the air outlet pipe 7 , and the rotating ring block 14 is rotatably connected to the inside of an annular groove opened inside the air cover 8 , and a sealing rotating ring is provided on the inner wall of the annular groove.

[0025] In this embodiment, the hot air assembly 2 includes a heating box 21, which is fixed on the top of the drying box 1. A fan 23 is installed inside the heating box 21. A dustproof net 22 is detachably installed on the right side of the heating box 21. An electric heating wire 25 is provided on the left side of the interior of the heating box 21. An isolation mesh plate 24 is fixed inside the heating box 21 and is located between the electric heating wire 25 and the fan 23. An air outlet hood 26 is embedded and fixed on the side of the heating box 21 away from the dustproof net 22. An air supply pipe 27 is fixed on the side of the air outlet hood 26 away from the heating box 21. The end of the air supply pipe 27 away from the air outlet hood 26 is passed through and fixed on the diversion cover 6.

[0026] It is worth mentioning that the dustproof net 22 has the effect of filtering dust in the inhaled air, so that the air in the environment is inhaled into the interior of the heating box 21 and is heated by the electric heating wire 25 to form hot air and then transported to each air hood 8.

[0027] See also Figure 1 In this example, the driving part includes a servo motor 12, a support plate is installed at the bottom of the servo motor 12, and the support plate is fixed to the side wall of the drying box 1. The output shaft of the servo motor 12 is fixedly connected to the intermediate rotating rod 9. A driving wheel 13 is fixed to the outside of the intermediate rotating rod 9. The left and right sides of the outside of the driving wheel 13 are both connected to the transmission belt 11 for transmission. The outside of the upper and lower rotating rods 9 are fixed with driven wheels 10, and the side of the transmission belt 11 away from the driving wheel 13 is connected to the outside of the driven wheel 10 for transmission.

[0028] Among them, a control panel is installed on the drying box 1, and the servo motor 12, the fan 23 and the electric heating wire 25 are all electrically connected to the control panel. By controlling the forward and reverse rotation of the servo motor 12 to drive the driving wheel 13 to rotate clockwise or counterclockwise, the transmission belt 11 can drive the driven wheel 10 to rotate, so that the rotating rod 9 drives the wind hood 8 to rotate back and forth to change the blowing angle, so that the negative electrode sheet on the screen plate 3 is evenly heated.

[0029] In this example, an air outlet net is embedded and fixed at the bottom of the drying box 1, a door 15 is hinged on the front of the drying box 1, and multiple slide grooves 5 are opened on the left and right inner walls of the drying box 1. The inside of the slide grooves 5 is slidably connected with a clamping plate 4, and a mesh plate 3 is fixed between every two clamping plates 4.

[0030] It should be noted that when the dried negative electrode sheet needs to be taken out, the screen plate 3 is pulled horizontally to make the clamping plate 4 slide out of the chute 5 so that the screen plate 3 can be taken out of the drying box 1.

[0031] The working principle of the above embodiment is: when in use, the card plates 4 on both sides of the mesh plate 3 with the silicon-carbon negative electrode sheets are slid into the interior of the slide groove 5, so that multiple mesh plates 3 can be distributed up and down in the drying box 1, and then the box door 15 is closed, and the air in the environment is drawn by the fan 23, heated by the electric heating wire 25 to form hot air, and then transported to the inside of the diversion cover 6, so that the hot air can be diverted into each wind cover 8, so that the hot air is blown out from 81 and the negative electrode sheets of each layer are evenly dried. While drying, the servo motor 12 can be started to rotate forward and reverse to drive the driving wheel 13 to rotate clockwise or counterclockwise, so that the transmission belt 11 can drive the driven wheel 10 to rotate, so that the rotating rod 9 drives the wind cover 8 to rotate back and forth to change the blowing angle, so that the negative electrode sheets on the mesh plate 3 are evenly heated, which not only improves the drying efficiency but also dries the negative electrode sheets more evenly.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drying mechanism for manufacturing silicon-carbon negative electrode sheets, comprising a drying box (1), characterized in that: A hot air assembly (2) is provided on the top of the drying box (1), and a diversion blowing mechanism is provided inside the drying box (1); The diversion blowing mechanism comprises a diversion cover (6), the diversion cover (6) is fixed on the side wall of the drying box (1), a plurality of air outlet pipes (7) are fixed through one side of the diversion cover (6), one end of the air outlet pipe (7) away from the diversion cover (6) passes through the drying box (1) and extends to the inside and is rotatably connected to a wind cover (8), a rotating rod (9) is fixed on one side of the wind cover (8) away from the air outlet pipe (7), one end of the rotating rod (9) away from the air outlet pipe (7) passes through the drying box (1) and extends to the outside, a plurality of (81) are provided on the bottom of the wind cover (8), and a driving member that can drive the wind cover (8) to rotate back and forth to adjust the blowing angle is provided on the side wall of the drying box (1).

2. The manufacturing and drying mechanism for silicon-carbon negative electrode sheets according to claim 1, characterized in that: The hot air assembly (2) comprises a heating box (21), the heating box (21) is fixed on the top of the drying box (1), a fan (23) is installed inside the heating box (21), a dustproof net (22) is detachably installed on the right side of the heating box (21), an electric heating wire (25) is provided on the left side of the interior of the heating box (21), and an isolation screen (24) is fixed inside the heating box (21) and is located between the electric heating wire (25) and the fan (23).

3. The manufacturing and drying mechanism for a silicon-carbon negative electrode sheet according to claim 2, characterized in that: An air outlet hood (26) is embedded and fixed on the side of the heating box (21) away from the dustproof net (22), and an air supply pipe (27) is fixed on the side of the air outlet hood (26) away from the heating box (21). One end of the air supply pipe (27) away from the air outlet hood (26) is passed through and fixed on the diversion cover (6).

4. The manufacturing and drying mechanism for silicon-carbon negative electrode sheets according to claim 1, characterized in that: The driving member comprises a servo motor (12), a support plate is installed at the bottom of the servo motor (12), and the support plate is fixed to the side wall of the drying box (1). The output shaft of the servo motor (12) is fixedly connected to the middle rotating rod (9), and a driving wheel (13) is fixed to the outside of the middle rotating rod (9). The left and right sides of the outside of the driving wheel (13) are both connected to the transmission belt (11).

5. The manufacturing and drying mechanism for silicon-carbon negative electrode sheets according to claim 4, characterized in that: Driven wheels (10) are fixed to the outside of the rotating rods (9) on the upper and lower sides, and the transmission belt (11) is connected to the outside of the driven wheel (10) on the side away from the driving wheel (13).

6. The manufacturing and drying mechanism for silicon-carbon negative electrode sheets according to claim 1, characterized in that: An air outlet net is embedded and fixed at the bottom of the drying box (1), a door (15) is hinged on the front of the drying box (1), and a plurality of slide grooves (5) are provided on the left and right inner side walls of the drying box (1), and a clamping plate (4) is slidably connected inside the slide grooves (5), and a mesh plate (3) is fixed between every two of the clamping plates (4).

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