Lithium battery coating heating device

Abstract

The utility model belongs to the technical field of coating and heating, and particularly relates to a lithium battery coating and heating device which comprises a drying box, a conveying belt is arranged in the drying box, two transmission rollers are in friction transmission in the conveying belt in a bilateral symmetry structure, and the front end and the rear end of each transmission roller are both rotationally connected with two supports. The side walls of the support are fixedly connected with the outer wall of the drying box, an infrared heating pipe is fixedly connected to the drying box, an air blower is installed on the rear wall of the drying box, a magnetic control assembly is slidably connected to the top face of the drying box, the conveying belt is hollow, and a plurality of supporting rollers are in friction contact with the interior of the conveying belt in a uniform arrangement structure. The front end and the rear end of the supporting roller are rotationally connected with the drying box. According to the lithium battery electrode plate drying device, the coated lithium battery electrode plate is dried in time, drying is more thorough in multiple drying modes, especially, the interior is effectively dried, the drying efficiency is improved, and the heating use effect of lithium battery coating is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coating heating, in particular to a lithium battery coating heating device. Background Art

[0002] With the development of the lithium battery industry, the overall layout can be highly summarized into four links: upstream parts factory, lithium battery production factory, assembly pack factory and assembly automobile factory; in the lithium battery production factory, the core bottleneck process is the lithium battery pole piece coating process. The coating process is the key process in the lithium battery molding production process, and baking molding is the key node in the coating process;

[0003] The Chinese utility model patent with the prior art publication number CN217797195U provides a lithium battery coating and heating device, wherein a lithium battery pole piece is arranged in an accommodating space, and the lithium battery pole piece has a first surface and a second surface relative to each other; a first heater is arranged in a first air inlet duct, and the first heater is used to heat the gas in the first air inlet duct, and the two air inlet ducts can respectively supply air to the upper and lower surfaces of the pole piece to dry it. The lithium battery coating and heating device increases the air inlet temperature of the first air inlet duct so that the first surface of the pole piece is dried first and the second surface is dried later, thereby improving the adhesion of the pole piece and ensuring the charging and discharging performance of the lithium battery.

[0004] Although the device has many beneficial effects, it still has the following shortcomings: the upper and lower surfaces of the electrode are blown dry by hot gas, but the inside of the coating material cannot be dried in time, and even the coating material on the surface has been dried but the inside of the material has not been dried, resulting in inconsistent drying and affecting the coating heating effect of the lithium battery. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a lithium battery coating heating device, which solves the technical problem that the upper and lower surfaces of the electrode are blown and dried by hot gas, but the inside of the coating material cannot be dried in time, and even the coating material on the surface has been dried but the inside of the material has not been dried, resulting in inconsistent drying and affecting the coating and heating effect of the lithium battery.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a lithium battery coating and heating device, comprising a drying box, a conveyor belt is arranged inside the drying box, the conveyor belt has a left-right symmetrical structure and two transmission rollers for friction transmission, the front and rear ends of the transmission rollers are rotatably connected to two brackets, the side walls of the brackets are fixedly connected to the outer wall of the drying box, an infrared heating tube is fixedly connected to the drying box, a blower is installed on the rear wall of the drying box, and a magnetic control component is slidably connected to the top surface of the drying box.

[0007] Preferably, the conveyor belt is hollow, and a plurality of support rollers are arranged inside the conveyor belt in a uniformly arranged structure in frictional contact. The front and rear ends of the support rollers are rotatably connected to the drying box. A servo motor is installed on the front wall of the drying box through a mounting seat, and the output shaft of the servo motor is coaxially connected to one of the drive rollers.

[0008] Through the above technical solution, the servo motor drives one of the transmission rollers to rotate, causing the conveyor belt to rotate clockwise.

[0009] Preferably, the infrared heating tube is located inside the conveyor belt, a controller is installed in the middle of the front wall of the drying box, the head and tail ends of the infrared heating tube are connected to the controller through wires, and there are multiple infrared heating tubes, and two adjacent infrared heating tubes are connected at the head.

[0010] Through the above technical solution, the controller is connected to the wire, so that the infrared heating tube can dry the lithium battery electrode sheet transported on the top surface of the conveyor belt.

[0011] Preferably, the blowing end of the blower is connected to a delivery pipe, the middle of the delivery pipe is connected to an air heater, the air heater is installed on the rear wall of the drying box, and the delivery pipe penetrates the outer wall of the drying box and extends to the inside.

[0012] Through the above technical solution, the air transported inside the transport pipe is heated by the air heater, and the hot air is transported to the inside of the drying box to dry the coated lithium battery electrode sheet.

[0013] Preferably, the magnetic control component includes a hollow block, the front and rear ends of the hollow block are fixedly connected to limit blocks, the inner wall of the drying box is symmetrically structured with two limit grooves, the limit blocks slide along the limit grooves, and the hollow block slides along the upper end of the drying box.

[0014] Preferably, a cylinder is mounted on the rear wall of the drying box via a mounting seat, a support block is fixedly connected to the top surface of the piston rod of the cylinder, and a front wall of the support block is fixedly connected to the rear wall of the hollow block.

[0015] Through the above technical solution, the material coated on the lithium battery electrode sheet is dried from the inside to the outside by microwaves generated by the magnetron.

[0016] Preferably, two magnetrons are installed in a symmetrical structure at the lower end of the hollow block, a fixed block is fixedly connected to the upper end of the hollow block, and a plurality of heat dissipation motors are installed on the fixed block in a uniformly arranged structure through a mounting seat.

[0017] Preferably, a rotating shaft is coaxially connected to the output shaft of the heat dissipation motor, the rotating shaft is rotationally connected to the fixed block, and the lower end of the rotating shaft is fixedly connected to an exhaust fan blade.

[0018] Through the above technical solution, the output shaft of the heat dissipation motor drives the rotating shaft to rotate, so that the exhaust fan blades rotate, and the hot air inside the hollow block is discharged to the outside for replacement, thereby cooling and dissipating the magnetron.

[0019] Beneficial effects of the utility model:

[0020] 1. The servo motor drives one of the transmission rollers to rotate, so that the conveyor belt rotates clockwise, and the coated lithium battery electrode sheet is transported to the top surface of the left end of the conveyor belt, and then connected to the wire through the controller, so that the infrared heating tube dries the lithium battery electrode sheet transported on the top surface of the conveyor belt. At the same time, the blower transports the external air to the inside of the drying box through the conveying pipe, and the air transported inside the conveying pipe is heated by the air heater, and the hot air is transported to the inside of the drying box to dry the coated lithium battery electrode sheet. The excess hot air after use is discharged from both ends of the drying box to the outside, and the inside of the drying box is kept at a suitable drying temperature. The coated lithium battery electrode sheet dried by hot air and infrared heating tubes is transported to the bottom of the magnetic control component for further drying, which is convenient for the heating and use of lithium battery coating. The coated lithium battery electrode sheet is dried in time, and multiple drying methods are dried more thoroughly, especially the effective drying of the inside, which improves the drying efficiency and the heating effect of lithium battery coating.

[0021] 2. The piston rod of the cylinder pushes the hollow block to slide along the drying box, driving the limit block to slide along the limit groove. After the magnetron is moved to a suitable use position, the microwave generated by the magnetron is used to dry the material coated on the lithium battery electrode sheet from the inside to the outside, thereby improving the drying efficiency and making the drying more uniform. The magnetron is adjusted to a suitable use height through the hollow block, which facilitates the drying and use of the magnetron. The output shaft of the heat dissipation motor drives the shaft to rotate, causing the exhaust fan blades to rotate, and the hot air inside the hollow block is discharged to the outside, thereby cooling the magnetron, reducing the use temperature of the magnetron, and facilitating the heat dissipation of the magnetron. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a cross-sectional view of the drying box structure of the utility model;

[0024] Figure 3 It is a cross-sectional view of the conveyor belt structure of the utility model;

[0025] Figure 4 This is a right side cross-sectional view of the drying box structure of the utility model;

[0026] Figure 5 This is a rear right view of the hollow block structure of the utility model;

[0027] Figure 6 This is a cross-sectional view of the hollow block structure of the utility model;

[0028] Figure 7 This is a schematic diagram of the exhaust fan blade structure of the utility model.

[0029] In the figure: 1. drying box; 2. conveyor belt; 21. support roller; 22. servo motor; 3. transmission roller; 4. bracket; 5. infrared heating tube; 51. controller; 52. wire; 6. blower; 61. conveying pipe; 62. air heater; 7. magnetron assembly; 71. hollow block; 72. limit block; 73. limit groove; 74. cylinder; 75. support block; 76. magnetron; 77. fixed block; 78. heat dissipation motor; 79. rotating shaft; 710. exhaust fan blade. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Example

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a lithium battery coating and heating device comprises a drying box 1, a conveyor belt 2 is arranged inside the drying box 1, the conveyor belt 2 has two drive rollers 3 with a left-right symmetrical structure and friction transmission, the front and rear ends of the drive rollers 3 are rotatably connected to two brackets 4, the side walls of the brackets 4 are fixedly connected to the outer wall of the drying box 1, an infrared heating tube 5 is fixedly connected to the drying box 1, a blower 6 is installed on the rear wall of the drying box 1, and a magnetic control component 7 is slidably connected to the top surface of the drying box 1.

[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the conveyor belt 2 is hollow, and the interior of the conveyor belt 2 is in a uniformly arranged structure with multiple support rollers 21 in friction contact. The front and rear ends of the support rollers 21 are rotatably connected to the drying box 1. A servo motor 22 is installed on the front wall of the drying box 1 through a mounting seat, and the output shaft of the servo motor 22 is coaxially connected to one of the transmission rollers 3; the servo motor 22 drives one of the transmission rollers 3 to rotate, causing the conveyor belt 2 to rotate clockwise.

[0033] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the infrared heating tube 5 is located inside the conveyor belt 2, and a controller 51 is installed in the middle of the front wall of the drying box 1. The head and tail ends of the infrared heating tube 5 are connected to the controller 51 through a wire 52. There are multiple infrared heating tubes 5, and the first two adjacent infrared heating tubes 5 are connected; the controller 51 is connected to the wire 52, so that the infrared heating tube 5 dries the lithium battery electrode sheet transported on the top surface of the conveyor belt 2.

[0034] like Figure 1 and Figure 4 As shown, the blowing end of the blower 6 is connected to a delivery pipe 61, the middle part of the delivery pipe 61 is connected to an air heater 62, the air heater 62 is installed on the rear wall of the drying box 1, and the delivery pipe 61 passes through the outer wall of the drying box 1 and extends to the inside; the air delivered inside the delivery pipe 61 is heated by the air heater 62, and the hot air is delivered to the inside of the drying box 1 to dry the coated lithium battery electrode sheets.

[0035] The working principle of the utility model is as follows: first, the servo motor 22 drives one of the driving rollers 3 to rotate, so that the conveyor belt 2 rotates clockwise, and the coated lithium battery electrode sheet is transported to the top surface of the left end of the conveyor belt 2, and then the controller 51 is connected with the wire 52, so that the infrared heating tube 5 dries the lithium battery electrode sheet transported on the top surface of the conveyor belt 2;

[0036] At the same time, the external air is conveyed to the inside of the drying box 1 through the conveying pipe 61 by the blower 6, and the air conveyed in the conveying pipe 61 is heated by the air heater 62, and the hot air is conveyed to the inside of the drying box 1 to dry the coated lithium battery electrode sheets. The excess hot air after use is discharged to the outside from both ends of the drying box 1. At the same time, the inside of the drying box 1 is maintained at a suitable drying temperature. The coated lithium battery electrode sheets dried by the hot air and infrared heating tube 5 are conveyed to the bottom of the magnetron assembly 7 for further drying, which is convenient for the coating and heating of the lithium battery. Example

[0037] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, on the basis of embodiment 1, the magnetron component 7 includes a hollow block 71, and the front and rear ends of the hollow block 71 are fixedly connected to the limit blocks 72. The inner wall of the drying box 1 is symmetrically structured and has two limit grooves 73. The limit blocks 72 slide along the limit grooves 73, and the hollow block 71 slides along the upper end of the drying box 1. The rear wall of the drying box 1 is installed with a cylinder 74 through a mounting seat, and the top surface of the piston rod of the cylinder 74 is fixedly connected with a support block 75, and the front wall of the support block 75 is fixedly connected to the rear wall of the hollow block 71; the microwaves generated by the magnetron 76 dry the material coated on the lithium battery electrode sheet from the inside to the outside.

[0038] like Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7 As shown, two magnetrons 76 are installed at the lower end of the hollow block 71 in a symmetrical structure, and a fixed block 77 is fixedly connected to the upper end of the hollow block 71. A plurality of heat dissipation motors 78 are installed on the fixed block 77 in a uniformly arranged structure through a mounting seat. A rotating shaft 79 is coaxially connected to the output shaft of the heat dissipation motor 78, and the rotating shafts 79 are all rotatably connected to the fixed block 77. An exhaust fan blade 710 is fixedly connected to the lower end of the rotating shaft 79; the rotating shaft 79 is driven to rotate by the output shaft of the heat dissipation motor 78, so that the exhaust fan blade 710 rotates, and the hot air inside the hollow block 71 is discharged to the outside for replacement, thereby cooling the magnetron 76.

[0039] When in use, the piston rod of the cylinder 74 pushes the hollow block 71 to slide along the drying box 1, driving the limit block 72 to slide along the limit groove 73, and after the magnetron 76 is moved to a suitable use position, the microwave generated by the magnetron 76 dries the material coated on the lithium battery electrode sheet from the inside to the outside, thereby improving the drying efficiency and making the drying more uniform. The magnetron 76 is adjusted to a suitable use height through the hollow block 71, which facilitates the drying use of the magnetron 76;

[0040] When the magnetron 76 generates a high amount of heat during use, the output shaft of the heat dissipation motor 78 drives the rotating shaft 79 to rotate, causing the exhaust fan blades 710 to rotate, and the hot air inside the hollow block 71 is discharged to the outside, thereby cooling the magnetron 76, reducing the operating temperature of the magnetron 76, and facilitating the heat dissipation of the magnetron 76.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lithium battery coating heating device, comprising a drying box (1), characterized in that: The drying box (1) is provided with a conveyor belt (2) inside. The conveyor belt (2) has a bilaterally symmetrical structure and friction transmission with two transmission rollers (3). The front and rear ends of the transmission rollers (3) are rotatably connected to two brackets (4). The side walls of the brackets (4) are fixedly connected to the outer wall of the drying box (1). The drying box (1) is fixedly connected to an infrared heating tube (5). The rear wall of the drying box (1) is installed with a blower (6). The top surface of the drying box (1) is slidably connected to a magnetic control component (7).

2. The lithium battery coating heating device according to claim 1, characterized in that: The conveyor belt (2) is hollow, and a plurality of support rollers (21) are arranged in a uniform structure and in frictional contact with the interior of the conveyor belt (2). The front and rear ends of the support rollers (21) are rotatably connected to the drying box (1). A servo motor (22) is mounted on the front wall of the drying box (1) via a mounting seat, and the output shaft of the servo motor (22) is coaxially connected to one of the transmission rollers (3).

3. The lithium battery coating heating device according to claim 1, characterized in that: The infrared heating tube (5) is located inside the conveyor belt (2). A controller (51) is installed in the middle of the front wall of the drying box (1). The head and tail ends of the infrared heating tube (5) are connected to the controller (51) via a wire (52). There are multiple infrared heating tubes (5), and two adjacent infrared heating tubes (5) are connected at the head.

4. The lithium battery coating heating device according to claim 1, characterized in that: The blowing end of the blower (6) is connected to a delivery pipe (61), the middle of the delivery pipe (61) is connected to an air heater (62), the air heater (62) is installed on the rear wall of the drying box (1), and the delivery pipe (61) passes through the outer wall of the drying box (1) and extends to the interior.

5. The lithium battery coating heating device according to claim 1, characterized in that: The magnetic control assembly (7) comprises a hollow block (71), the front and rear ends of the hollow block (71) are fixedly connected to limit blocks (72), the inner wall of the drying box (1) is symmetrically structured and has two limit grooves (73), the limit blocks (72) slide along the limit grooves (73), and the hollow block (71) slides along the upper end of the drying box (1).

6. The lithium battery coating heating device according to claim 5, characterized in that: A cylinder (74) is mounted on the rear wall of the drying box (1) via a mounting seat, a support block (75) is fixedly connected to the top surface of the piston rod of the cylinder (74), and a front wall of the support block (75) is fixedly connected to the rear wall of the hollow block (71).

7. The lithium battery coating heating device according to claim 6, characterized in that: The lower end of the hollow block (71) is symmetrically mounted with two magnetrons (76), the upper end of the interior of the hollow block (71) is fixedly connected with a fixed block (77), and a plurality of heat dissipation motors (78) are evenly arranged and mounted on the fixed block (77) via a mounting seat.

8. The lithium battery coating heating device according to claim 7, characterized in that: A rotating shaft (79) is coaxially connected to the output shaft of the heat dissipation motor (78), and the rotating shafts (79) are all rotationally connected to the fixed block (77). The lower end of the rotating shaft (79) is fixedly connected to an exhaust fan blade (710).

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