Copper-aluminum foil direct-current induction heating equipment

Abstract

The utility model relates to copper aluminum foil direct current induction heating equipment. The copper-aluminum foil direct-current induction heating equipment comprises a power assembly, a transmission assembly driven by the power assembly, a magnetic disk assembly driven by the transmission assembly to rotate and a complete machine control circuit. The power assembly is composed of a motor base, a servo motor module fixedly arranged on the motor base, a servo motor driver of the servo motor module and a motor base fixedly arranged on the motor base. The transmission assembly is composed of a vertical support plate fixedly arranged on the motor base, a rotating shaft vertically arranged at the other end of the vertical support plate, a synchronous belt wheel module arranged on the motor and the rotating shaft in a sleeving mode, and rotating connecting plates arranged at the positions, located at the two ends of the vertical support plate, of the rotating shaft. The magnetic disk assembly is composed of a magnetic disk base, a square magnet yoke, a magnetic disk cover plate and magnetic disk internal magnets evenly distributed on the magnetic disk cover plate, wherein the square magnet yoke and the magnetic disk cover plate are coaxially and sequentially installed along the magnetic disk base.

Description

Technical Field

[0001] The utility model belongs to the technical field of direct current induction heating, and particularly relates to a copper-aluminum foil direct current induction heating device. Background Art

[0002] In the current lithium battery market, the mainstream electrode material copper and aluminum foil plays a key role in the production of pole rolls, and the efficiency and quality of baking copper and aluminum foil will directly affect the performance of the pole rolls. Currently in the market, pole roll drying lines usually use traditional resistance heating plate contact for heating. This traditional heating method has a series of problems, including low heat transfer efficiency, difficult maintenance, low controllability of heating temperature and speed, etc. These problems have led to a decrease in production efficiency and instability in product quality, which in turn affects the entire manufacturing process. It can be said that there is room for improvement in the pole roll copper and aluminum foil drying lines on the current market, and it is expected to improve production efficiency, reduce energy consumption, and improve product quality and performance by introducing more advanced and more efficient heating technologies.

[0003] The copper and aluminum foil DC induction heating method developed in this project is different from traditional resistance heating. It can solve the above problems and has the advantages of fast heating speed, simple equipment maintenance, high degree of automation, etc. In addition, DC induction heating does not require the heating element to directly contact the object, thereby reducing the wear and pollution of the element. It not only helps to improve production efficiency and quality, but also reduces production costs and promotes the development of the new energy field. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art, and to provide a copper-aluminum foil DC induction heating device based on a Halbach annular array magnet disk, which generates a changing magnetic field through a servo motor to drive a rotating shaft to rotate the disk, and generates eddy currents with the copper-aluminum foil metal surface, thereby generating heat. Another purpose of the utility model is to provide a method of directly generating eddy currents with the copper-aluminum foil metal to conduct heat, which can significantly improve the energy conversion efficiency and effectively improve the heating efficiency. The utility model does not require moving parts, and the parts do not require frequent maintenance, which is more convenient and faster in equipment maintenance; and by controlling and adjusting the speed of the servo motor, the magnetic field can be changed, and the temperature of the copper-aluminum foil when heated can be controlled. The feedback regulation efficiency is faster than that of the traditional thermal resistor type, achieving the function of controlling the surface temperature of the copper-aluminum foil, thereby ensuring the temperature uniformity of the copper-aluminum foil when drying.

[0005] The technical solution of the utility model is a copper-aluminum foil DC induction heating device, which is special in that it includes a motor component, a transmission component driven by the motor component, a magnetic disk component driven to rotate by the transmission component, and a whole machine control circuit.

[0006] Preferably, the motor assembly is composed of a motor base, a servo motor module fixed on the motor base and its servo motor driver, and a motor base fixed on the motor base.

[0007] Preferably, the transmission assembly is composed of an upright bracket plate fixed on the motor base, a rotating shaft vertically arranged at the other end of the upright bracket plate, a synchronous pulley module sleeved on the motor and the rotating shaft, and a rotating connecting plate arranged at both ends of the upright bracket plate; the motor output shaft transmits power to the rotating shaft through a synchronous belt, and then drives the magnetic disk assembly to rotate through the rotating shaft to generate a changing magnetic field, generate eddy currents with the metal surface of the copper-aluminum foil, and thus generate heat.

[0008] Preferably, the disk assembly is composed of a disk base, a square yoke installed coaxially along the disk base, a disk cover, and internal magnets of the disk evenly distributed on the disk cover.

[0009] Preferably, the control circuit comprises a temperature probe, a PLC, a servo motor driver, a servo motor, a magnetic disk, and copper and aluminum foil to be baked. The temperature probe is placed on the surface of the copper and aluminum foil to be baked for temperature control. When the copper and aluminum foil is placed, the temperature probe transmits the temperature measurement data to the PLC, and the PLC outputs the temperature data of the surface of the copper and aluminum foil to the servo motor controller to control the speed of the servo motor. The servo motor drives the rotating shaft to rotate, and the magnetic disk rotates continuously. The rotation of the magnetic disk will continuously change the direction of the magnetic lines of force, and the magnetic lines of force in the magnetic field are always cut. The metal material of the placed copper and aluminum foil generates heat to change the strength of the induced magnetic field, so as to always ensure that the temperature meets the set process parameters, thereby achieving the function of controlling the surface temperature of the copper and aluminum foil, thereby ensuring the temperature uniformity of the copper and aluminum foil during drying.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] ⑴ Improve the drying efficiency of copper and aluminum foil. Through DC induction heating, after setting the motor speed that meets the process, compared with the traditional heating method of thermal resistance wire, the heating speed of copper and aluminum foil is significantly improved, and the efficiency of energy conversion is much higher than that of thermal resistance, and the energy consumption is also lower.

[0012] (2) The equipment is durable and easy to maintain. After a long period of heating, the traditional resistance wire heating may be damaged due to aging, affecting the drying rate of the copper and aluminum foil. The usual maintenance requires the replacement of all the resistance wires, which requires greater manpower costs. The DC induction heating device of the utility model requires fewer parts as a whole, and all parts are basically machined parts and standard parts, with a longer service life and high interchangeability, and the time and cost required for later maintenance and replacement are lower.

[0013] ⑶ Temperature feedback is faster to ensure temperature uniformity. When the copper and aluminum foils are placed, a temperature probe is installed to transmit the temperature measurement data to the PLC. The PLC outputs the temperature data of the battery surface to the servo motor controller, controls the servo motor speed, changes the strength of the induced magnetic field, and always ensures that the temperature meets the set process parameters, achieving the function of controlling the battery surface temperature, thereby ensuring the temperature uniformity when the copper and aluminum foils are dried. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural front view of the copper-aluminum foil DC induction heating device of the utility model;

[0015] Figure 2 yes Figure 1 Schematic diagram of structural decomposition;

[0016] Figure 3 This is a structural top view of the copper-aluminum foil DC induction heating device of the utility model;

[0017] Figure 4 It is an exploded view of the vertical support plate of the copper-aluminum foil DC induction heating device of the utility model;

[0018] Figure 5 It is a structural schematic diagram of the disk assembly of the utility model;

[0019] Figure 6 The utility model discloses a control circuit diagram of a copper-aluminum foil DC induction heating device.

[0020] Main component symbols:

[0021] Disk cover 10 Disk internal magnet 20 Disk base 30 Rotation axis 40 Rotating connecting plate 50 Vertical support plate 60 Rotating connecting plate 70 Lock nut 80 Synchronous pulley module 90 Motor base 100 Servo motor driver 110 Servo motor module 120 Fixed base plate 130 Square yoke 140 Rolling bearing 150 DETAILED DESCRIPTION

[0022] The utility model will be further described below in conjunction with the accompanying drawings:

[0023] See also Figures 1 to 5 As shown, the copper-aluminum foil DC induction heating device is composed of a magnet disk, a rotating shaft 40, and a servo motor module 120. The arrangement of the magnets inside the magnet disk is a Halbach ring array, which can achieve a higher magnetic density and lower loss under the condition of the same amount of magnets. The square yoke at the bottom of the magnet can effectively prevent magnetic leakage. The rotating shaft 40 is connected to the synchronous pulley module 90 and fixes the magnet disk. The servo motor module 120 provides rotation in this device to rotate the magnet disk.

[0024] The front section of the magnet disc is the heating area. When copper and aluminum foil are placed on it, the temperature and motor speed required for heating and drying the copper and aluminum foil are set in the PLC. After starting the heating, the servo motor controller outputs a signal to control the servo motor speed, driving the rotating shaft 40 to rotate, and the magnet disc also rotates continuously. The rotation of the magnet will continuously change the direction of the magnetic force lines. The magnetic flux lines in this magnetic field are constantly cut, and the metal material of the placed copper and aluminum foil will generate heat, thereby achieving the purpose of baking the copper and aluminum foil.

[0025] Before starting baking, a temperature probe is installed when the copper and aluminum foil is placed, and the temperature measurement data is transmitted to the PLC. The PLC outputs the temperature data of the copper and aluminum foil surface to the servo motor controller, controls the servo motor speed, changes the strength of the induced magnetic field, and always ensures that the temperature meets the set process parameters, thereby achieving the function of controlling the surface temperature of the copper and aluminum foil, thereby ensuring the temperature uniformity of the copper and aluminum foil during drying.

[0026] The DC induction baking heating method of copper and aluminum foil is studied by making a DC induction device, which is composed of a magnet disk, a rotating spindle, a synchronous pulley, a servo motor, and a servo motor driver 110. The outside of the magnet disk is composed of a disk cover 10, and the bottom is a disk base 30. The inside of the magnet disk is composed of magnets and square yokes 140. The magnets are arranged according to the Halbach ring array. The square yoke 140 is installed on the back of the magnet to restrict the leakage magnetic field of the induction coil to spread in other directions and ensure that the magnetic field is positioned forward. The copper and aluminum foil to be baked is placed in front of the magnet disk, and the alternating magnetic field generated by the rotation of the magnet disk and the metal material of the copper and aluminum foil produce the Joule effect to achieve the function of internal heating.

[0027] The magnet disk is connected to the rotating shaft 40 and is installed on the vertical bracket plate 60 together. The rotating shaft 40 is installed on the vertical bracket plate 60 through the connecting plate 50, and is limited to swing left and right, and is fixed by the locking nut 80 at the bottom of the vertical bracket plate 60. Two bearings and a shaft ring are installed on the shaft body of the rotating shaft 40 to ensure rotation stability. A synchronous pulley 90 is installed at the bottom of the vertical bracket plate 60, and the synchronous pulley 90 is fixed to the vertical bracket 60 plate through the motor base 100. The servo motor is connected to the pulley to drive the rotation, and the servo motor driver 110 controls its rotation speed and direction.

[0028] See also Figure 6As shown, the control circuit includes a temperature probe, a PLC, a servo motor driver 110, a servo motor 120, a magnetic disk, and copper and aluminum foil to be baked. When the copper and aluminum foil is placed, the temperature probe transmits the temperature measurement data to the PLC, and the PLC outputs the temperature data of the surface of the copper and aluminum foil to the servo motor controller to control the speed of the servo motor 120. The servo motor 120 drives the rotating shaft 40 to rotate, and the magnetic disk continues to rotate. The rotation of the magnetic disk will continuously change the direction of the magnetic field lines, and the magnetic flux lines in the magnetic field are always cut. The metal material of the placed copper and aluminum foil generates heat to change the strength of the induced magnetic field, so as to always ensure that the temperature meets the set process parameters, so as to achieve the function of controlling the surface temperature of the copper and aluminum foil, thereby ensuring the temperature uniformity of the copper and aluminum foil during drying.

[0029] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention shall fall within the scope of the claims of the present invention.

Claims

1. A copper and aluminum foil DC induction heating device, characterized in that: It includes a motor component, a transmission component driven by the motor component, a disk component driven to rotate by the transmission component, and a whole machine control circuit.

2. The copper-aluminum foil DC induction heating device according to claim 1 is characterized in that: The motor assembly consists of a motor base, a servo motor module fixed on the motor base and a servo motor driver thereof, and a motor fixed on the motor base.

3. The copper-aluminum foil DC induction heating device according to claim 1 is characterized in that: The transmission assembly consists of an upright bracket plate fixed on the motor base, a rotating shaft vertically arranged at the other end of the upright bracket plate, a synchronous pulley module sleeved on the motor and the rotating shaft, and a rotating connecting plate arranged at both ends of the upright bracket plate; the motor output shaft transmits power to the rotating shaft through a synchronous belt, and then drives the magnetic disk assembly to rotate through the rotating shaft to generate a changing magnetic field, generate eddy currents with the metal surface of the copper and aluminum foil, and thus generate heat.

4. The copper-aluminum foil DC induction heating device according to claim 1, characterized in that: The disk assembly consists of a disk base, a square magnetic yoke sequentially installed along the coaxial center of the disk base, a disk cover plate, and internal magnets of the disk evenly distributed on the disk cover plate.

5. The copper-aluminum foil DC induction heating device according to claim 1, characterized in that: The control circuit includes a temperature probe, a PLC, a servo motor driver, a servo motor, a magnetic disk, and copper and aluminum foil to be baked. The temperature probe is placed on the surface of the copper and aluminum foil to be baked for temperature control. When the copper and aluminum foil is placed, the temperature probe transmits temperature measurement data to the PLC, and the PLC outputs temperature data of the surface of the copper and aluminum foil to the servo motor controller to control the speed of the servo motor. The servo motor drives the rotating shaft to rotate, and the magnetic disk rotates continuously. The rotation of the magnetic disk will continuously change the direction of the magnetic lines of force, and the magnetic lines of force in the magnetic field are constantly cut. The metal material of the placed copper and aluminum foil generates heat to change the strength of the induced magnetic field, thereby always ensuring that the temperature meets the set process parameters.

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