Induction heating system implementing multiple full voltage coils

Abstract

An induction heating system includes a first induction coil including a first end and a second end, a second induction coil including a first end and a second end, at least one capacitor bank connected to and in a parallel configuration with the first induction coil and the second induction coil, an inverter configured to provide drive current to the at least one capacitor bank, the first induction coil, and the second induction coil, and a conveyor configured to move a metal workpiece through the first induction coil and the second induction coil. The system additionally includes circulating current through the first induction coil that is opposite in direction to circulating current through the second induction coil.

Description

Cross-references to related applications

[0001] This application claims the benefit of U.S. Provisional Application No. 63 / 571,044, filed March 28, 2024, which is incorporated herein by reference in its entirety for all purposes, as if fully set forth herein. Technical Field

[0002] This disclosure relates to an induction heating system that implements multiple full-voltage coils. Furthermore, this disclosure relates to an induction heating system that implements multiple full-voltage coils, which can be operated from a single inverter. Background Technology

[0003] A typical induction heater includes an electromagnet that receives alternating current (AC) and generates a magnetic field. This magnetic field penetrates an object, inducing a current within the object that heats it. The electromagnet is typically configured as a coil.

[0004] However, the magnetic field additionally generates a grounding current. This magnetic field and / or grounding current may undesirably heat adjacent structures. This reduces the efficiency of the induction heater, increases current usage, and / or similar issues. Furthermore, typical implementations suffer from problems such as: electrical tension on capacitors, the need for larger cabinets, limitations in wiring configuration, reduced product throughput (production line speed), associated operational losses, and / or similar problems.

[0005] Therefore, there is a need for an induction heater coil configuration to reduce grounding current, improve efficiency, improve operation, and / or the like. Summary of the Invention

[0006] The aforementioned needs are largely met by this disclosure, wherein in one aspect, an induction heating system for implementing multiple full-voltage coils is provided. Additionally, the aforementioned needs are largely met by this disclosure, wherein in one aspect, an induction heating system for implementing multiple full-voltage coils, which can be operated from a single inverter.

[0007] In one aspect, an induction heating system includes a first induction coil having a first end and a second end. The induction heating system further includes a second induction coil having a first end and a second end. The system further includes at least one capacitor bank connected to the first and second induction coils and configured in parallel with them. The system also includes an inverter configured to provide drive current to the at least one capacitor bank, the first induction coil, and the second induction coil. The system further includes a conveying device configured to move the metal workpiece through the first and second induction coils. The system further includes a configuration where the direction of the circulating current flowing through the first induction coil is opposite to the direction of the circulating current flowing through the second induction coil.

[0008] In one aspect, an induction heating system includes a first induction coil having a first end and a second end. The induction heating system further includes a second induction coil having a first end and a second end. The system further includes at least one capacitor bank connected to and configured in parallel with the first and second induction coils. The system also includes an inverter configured to provide drive current to the at least one capacitor bank, the first induction coil, and the second induction coil. The system further includes a conveying device configured to move a metal workpiece through the first and second induction coils. The system further includes wherein the first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured such that an electrical connection at the second end of the first induction coil and an electrical connection at the first end of the second induction coil have the same polarity. The system further includes wherein the second end of the first induction coil is arranged adjacent to the first end of the second induction coil.

[0009] In one aspect, an induction heating system includes a first induction coil having a first end and a second end. The induction heating system further includes a second induction coil having a first end and a second end. The system further includes at least one capacitor bank connected to the first and second induction coils and configured in parallel with them. The system also includes an inverter configured to provide drive current to the at least one capacitor bank, the first induction coil, and the second induction coil. The system further includes a conveying device configured to move a metal workpiece through the first and second induction coils. The system further includes a current flowing to the first induction coil at the second end in parallel with a current flowing to the second induction coil at the first end. The system further includes a second end of the first induction coil arranged adjacent to the first end of the second induction coil.

[0010] Therefore, certain aspects of this disclosure have been outlined rather extensively in order to better understand the detailed description herein and to better appreciate the present contribution to the art. Of course, there are additional aspects of this disclosure that will be described below, and these additional aspects will form the subject matter of the appended claims.

[0011] In this regard, before explaining at least one aspect of this disclosure in detail, it should be understood that this disclosure is not limited in its application to the construction details and arrangements of components set forth in the following description or illustrated in the accompanying drawings. This disclosure can have aspects other than those described and can be implemented and performed in various ways. Furthermore, it should be understood that the wording and terminology used herein, as well as the abstract, are for descriptive purposes and should not be considered limiting.

[0012] Therefore, those skilled in the art will appreciate that the concepts upon which this disclosure is based can be readily used as the basis for designing other structures, methods, and systems to perform some of the purposes of this disclosure. Therefore, it is important that the claims be considered to include such equivalent constructions, provided they do not depart from the spirit and scope of this disclosure. Attached Figure Description

[0013] Figure 1 A front view of an induction heating system according to various aspects of this disclosure is shown.

[0014] Figure 2 Examples are given based on Figure 1 Side view of the induction heating system.

[0015] Figure 3 Examples are given based on Figure 1 A side view of the induction heating system and a schematic diagram of a first induction coil and a second induction coil.

[0016] Figure 4 Examples are given based on Figure 1 A partial schematic diagram of the induction heating system.

[0017] Figure 5 Exemplary schematic diagrams of induction heating systems according to various aspects of this disclosure are shown.

[0018] Figure 6 An exemplary implementation of a first induction coil according to various aspects of this disclosure is illustrated.

[0019] Figure 7 An exemplary implementation of a second induction coil according to various aspects of this disclosure is illustrated.

[0020] Figure 8 A schematic side view of an induction heating system that implements a cooling system according to various aspects of this disclosure is shown.

[0021] Figure 9 A partial front perspective view of an induction heating system implementing a cooling system according to various aspects of this disclosure is shown.

[0022] Figure 10 Examples are given based on Figure 9 A partial side view of the induction heating system that enables the cooling system.

[0023] Figure 11 Examples are given based on Figure 9 A partial rear view of the induction heating system that enables the cooling system.

[0024] Figure 12 Examples are given based on Figure 9 A partial front perspective view of the induction heating system that enables the cooling system.

[0025] Figure 13 A schematic side view of an induction heating system that implements a cooling system according to various aspects of this disclosure is shown.

[0026] Figure 14 A partial front perspective view of an induction heating system implementing a cooling system according to various aspects of this disclosure is shown.

[0027] Figure 15 Examples are given based on Figure 14 A partial side view of the induction heating system that enables the cooling system.

[0028] Figure 16 Examples are given based on Figure 14 A partial front view of the induction heating system that enables the cooling system.

[0029] Figure 17 Examples are given based on Figure 14 Another partial front view of the induction heating system that realizes the cooling system.

[0030] Figure 18 Examples are given based on Figure 14 A partial top view of the induction heating system that enables the cooling system. Detailed Implementation

[0031] The present disclosure will now be described with reference to the accompanying drawings, in which the same reference numerals refer to the same parts throughout the drawings. Aspects of the present disclosure advantageously provide an induction heating system implementing multiple full-voltage coils operated by a single inverter.

[0032] This disclosure relates to an induction heating system implementing multiple full-voltage coils. Furthermore, this disclosure relates to an induction heating system implementing multiple full-voltage coils that can be operated from a single inverter. More particularly, this disclosure relates to an induction heating system implementing multiple full-voltage coils that can be operated from a single inverter, which reduces the required heating current compared to a single-coil design.

[0033] This disclosure relates to an induction heating system implementing multiple full-voltage coils operated by a single inverter. Specifically, the multiple full-voltage coils can be designed to be more efficient, thereby reducing the current carrying capacity in each coil, which in turn reduces heat, electrical tension on the high-voltage capacitor, and grounding current by reducing the magnetic field.

[0034] Furthermore, the disclosed induction heating system, which implements multiple full-voltage coils (operated by a single inverter), also allows for a smaller cabinet design, thereby reducing the overall system footprint, improving the efficiency of the curing process, and extending the heat rise capability of Litz wires configured for medium-frequency high-current applications.

[0035] Additionally, the disclosed induction heating system, which implements multiple full-voltage coils (operated by a single inverter), is configured to increase the product processing rate (production line rate). Specifically, it processes at a production line rate greater than currently achievable in the industry. For example, processing for a particular workpiece type is currently limited to 2600 workpieces per minute. Conversely, the disclosed induction heating system, which implements multiple full-voltage coils (operated by a single inverter), can be configured to process 3500 or more workpieces per minute.

[0036] Typically, an induction heating system implements a single induction coil. In various aspects, the disclosed induction heating system may include a configuration that divides the single induction coil into multiple coils. Furthermore, the disclosed induction heating system can then be configured to operate with a reduced current-carrying capacity required for heating the product through the coils.

[0037] In all aspects, the disclosed induction heating system achieves a low current-carrying capacity within the coil conductors, allowing the use of smaller wire gauges. This reduces the overall cost of the system.

[0038] In all aspects, the disclosed induction heating system achieves a lower current carrying capacity, reduces the effective magnetic field generated by the coil and connecting wires, and thus induces less loss by heating the steel enclosure surrounding the coil with eddy currents.

[0039] In various aspects, the disclosed induction heating system, configured with multiple coils, allows for implementations using Litz wire with lower current ratings and / or avoids utilizing the twin-wire parallel winding structure of the coils. Furthermore, the disclosed induction heating system can result in less cabinet heating. Therefore, the coil enclosure can be smaller and has less power loss, thus the overall system efficiency is not compromised.

[0040] In all aspects, the disclosed induction heating system enables a smaller overall enclosure size. Furthermore, the disclosed induction heating system eliminates the need for additional tools to increase the distance between the coil and the end of the enclosure. Therefore, the disclosed induction heating system can save significant costs associated with new tools and spacing considerations. Moreover, the disclosed induction heating system, which enables multiple coils powered by a single inverter, allows the system to operate at higher production line rates without substantial redesign and offers lower overall costs compared to single-coil designs.

[0041] Figure 1 A front view of an induction heating system according to various aspects of this disclosure is shown.

[0042] Figure 2 Examples are given based on Figure 1 Side view of the induction heating system.

[0043] Figure 3 Examples are given based on Figure 1 A side view of the induction heating system and a schematic diagram of the first and second induction coils.

[0044] In particular, Figure 1A front view of an induction heating system 100 according to various aspects of this disclosure is illustrated. The induction heating system 100 can be configured to at least partially or completely cure a metal workpiece 900 (in Figure 4 Coating material 902 on the surface (illustrated in ).

[0045] refer to Figure 3 The induction heating system 100 can implement multiple induction coils. In various aspects, the induction heating system 100 can implement two or more induction coils, which can be configured as disclosed herein. In various aspects, the induction heating system 100 can implement an even number of induction coils, which can be configured as disclosed herein. For the sake of simplicity, the induction heating system 100 is described and illustrated as implementing two induction coils, which may include a first induction coil 101 and a second induction coil 102. However, the induction heating system 100 can be implemented with any number of induction coils.

[0046] Looking back in all aspects Figure 1 and Figure 2 The induction heating system 100 may include a housing 201, a workpiece inlet 211, a workpiece outlet 221, a workpiece conveying structure 204, a support leg 206, and / or similar components. However, the induction heating system 100 may be implemented with fewer components, more components, and / or different components.

[0047] In various aspects, housing 201 can be implemented as a cabinet, enclosure, and / or the like. In various aspects, housing 201 can be a metal structure, steel structure, and / or the like. In various aspects, housing 201 can be arranged vertically as illustrated. In other aspects, housing 201 can be arranged horizontally (not shown). In various aspects, housing 201 can be supported by the support legs 206.

[0048] During operation, a metal workpiece 900 enters the housing 201 through the workpiece inlet 211. The metal workpiece 900 can be processed by the first induction coil 101. Subsequently, the metal workpiece 900 can be processed by the second induction coil 102. Afterward, the metal workpiece 900 exits the housing 201 through the workpiece outlet 221.

[0049] In various aspects, a door (not shown) may be arranged on housing 201 and provide closure for housing 201. In this respect, the door may allow access to the first induction coil 101, the second induction coil 102, and other components arranged within housing 201. In various aspects, the door may include a hinge that allows rotational movement of the door relative to housing 201. Furthermore, the door may include one or more locking mechanisms to maintain the door in a closed configuration relative to housing 201. In various aspects, housing 201 may include one or more air vents 240. In various aspects, the one or more air vents 240 may be slots, louvered vents, and / or the like. In various aspects, the one or more air vents 240 may provide cooling for the first induction coil 101, the second induction coil 102, and other components of the induction heating system 100 arranged within housing 201. Additionally, one or more air movers, such as fans or blowers, may be implemented in conjunction with the one or more air vents 240.

[0050] In particular, Figure 1 An exemplary location and arrangement of the one or more air vents 240 on the housing 201 are illustrated.

[0051] In various respects, the metal workpiece 900 may be a metal component, a metal structural component, a part of a container, a container, a lid for a container, a lid for a tubular container, and / or the like. In various respects, the coating material 902 may be applied to the metal workpiece 900 in a system independent of the induction heating system 100.

[0052] In various aspects, the coating material 902 may be applied to the inner surface of the metal workpiece 900, the outer surface of the metal workpiece 900, and / or the like. The surface of the metal workpiece 900 may be smooth, irregularly shaped, and / or the like. The metal workpiece 900 may be irregularly shaped, circular, cylindrical, and / or the like. The metal workpiece 900 may be a structure for attachment to an open cylinder at one end, both ends, and / or the like. In various aspects, the induction heating system 100 may be configured to heat and / or at least partially cure the coating material 902 on the metal workpiece 900.

[0053] In various aspects, the induction heating system 100 may further include, for example... Figure 1 The control panel 140, controller 200, and / or similar components are illustrated herein. In various aspects, the control panel 140, controller 200, and other components may be arranged within the housing 120. Alternatively, the control panel 140, controller 200, and other components may be arranged within the housing 201.

[0054] Figure 4 Examples are given based on Figure 1 A partial schematic diagram of the induction heating system.

[0055] refer to Figure 4 The induction heating system 100 may include a conveying device 160. The conveying device 160 can move a metal workpiece 900 through the induction heating system 100. In particular, the conveying device 160 can move the metal workpiece 900 through a first induction coil 101 and a second induction coil 102, as indicated by arrow 190.

[0056] In various aspects, the conveying device 160 can also convey the metal workpiece 900 to the induction heating system 100 and / or convey the metal workpiece 900 out of the induction heating system 100. In various aspects, the conveying device 160 can also convey the metal workpiece 900 from a device or system on which the coating material 902 has been applied to the metal workpiece 900 to the induction heating system 100.

[0057] The conveying device 160 can be implemented as a conveyor system that provides an arrangement for moving the metal workpiece 900 through the induction heating system 100, and more specifically through the magnetic field of the first induction coil 101 and the second induction coil 102. Due to the magnetic field present within the induction heating system 100, the conveying device 160 can be made entirely of non-ferrous, non-conductive, and / or non-magnetic components. In various aspects, the conveying device 160 may include a conveying surface for the metal workpiece 900. In various aspects, the conveying surface may be formed of a glass material, such as borosilicate glass and / or the like.

[0058] In various aspects, the conveying device 160 may be implemented as a pneumatic mechanical conveyor, a belt conveyor, a belt-driven roller conveyor, a scraper conveyor, a gravity conveyor, a plastic belt conveyor, a pneumatic conveyor, a tubular gallery conveyor, a vacuum conveyor, a vertical conveyor, a vibrating conveyor, and / or the like. In various aspects, the conveying device 160 may include a connecting chain, such as a connecting chain made of, for example, non-magnetic stainless steel, on which a series of push blocks are mounted, and the series of push blocks are spaced apart from each other.

[0059] In addition, the induction heating system 100 may include at least one capacitor bank 111. The at least one capacitor bank 111 may be connected to a first induction coil 101 and a second induction coil 102.

[0060] In various aspects, the at least one capacitor bank 111 may be connected to the first induction coil 101. In various aspects, the at least one capacitor bank 111 may be arranged within the housing 201. In various aspects, the at least one capacitor bank 111 may also be connected to the second induction coil 102.

[0061] Additionally, the induction heating system 100 may include or be connected to an inverter 130. In various aspects, the induction heating system 100 may have and implement a single implementation of the inverter 130.

[0062] Inverter 130 can be configured to provide drive current 132 to the at least one capacitor bank 111. In various aspects, inverter 130 can provide full operating voltage to each of the first induction coil 101 and the second induction coil 102. In various aspects, inverter 130 can be located and / or arranged in housing 201, housing 120, and / or the like. In other aspects, inverter 130 can be located outside housing 201 and housing 120.

[0063] In various aspects, the at least one capacitor bank 111 may be connected to the first induction coil 101 to provide or receive a first polarity drive current 141 and a first opposite polarity drive current 143; and the at least one capacitor bank 111 may be connected to the second induction coil 102 to provide or receive a second polarity drive current 142 and a second opposite polarity drive current 144. Specifically, the first induction coil 101 and the second induction coil 102 may be configured to operate using a single implementation of the inverter 130.

[0064] In various aspects, the at least one capacitor bank 111 may be configured to provide or receive a first polarity drive current 141 as alternating current at a first end 151 of the first induction coil 101; and the at least one capacitor bank 111 may be configured to provide or receive a first opposite polarity drive current 143 at a second end 152 of the first induction coil 101.

[0065] In some aspects, the first polarity drive current 141 may have a positive voltage potential, and the first opposite polarity drive current 143 may have a negative voltage potential. In other aspects, the first polarity drive current 141 may have a negative voltage potential, and the first opposite polarity drive current 143 may have a positive voltage potential.

[0066] In various aspects, the at least one capacitor bank 111 may be configured to provide or receive a second polarity drive current 142 as alternating current at the second end 172 of the second induction coil 102; and the at least one capacitor bank 111 may be configured to provide or receive a second opposite polarity drive current 144 at the first end 171 of the second induction coil 102.

[0067] In some aspects, the second polarity driving current 142 may have a positive voltage potential, and the second opposite polarity driving current 144 may have a negative voltage potential. In other aspects, the second polarity driving current 142 may have a negative voltage potential, and the second opposite polarity driving current 144 may have a positive voltage potential.

[0068] For example, the at least one capacitor bank 111 can provide a first polarity drive current 141 as alternating current to a first end 151 of the first induction coil 101; and the first induction coil 101 can provide a first opposite polarity drive current 143 to the at least one capacitor bank 111 from a second end 152 of the first induction coil 101. In various aspects, the first polarity drive current 141 can have a positive voltage potential, and the first opposite polarity drive current 143 can have a negative voltage potential.

[0069] Additionally, the at least one capacitor bank 111 may be configured to provide a second polarity drive current 142 as alternating current at the second end 172 of the second induction coil 102; and the at least one capacitor bank 111 may be configured to receive a second opposite polarity drive current 144 from the first end 171 of the second induction coil 102. In various respects, the second polarity drive current 142 may have a positive voltage potential, and the second opposite polarity drive current 144 may have a negative voltage potential.

[0070] In various aspects, the second end 152 of the first induction coil 101 can be arranged adjacent to the first end 171 of the second induction coil 102. Furthermore, the first end 151 of the first induction coil 101 and the second end 172 of the second induction coil 102 can be arranged on opposite sides. Additionally, the polarities (positive or negative) of the first opposite polarity driving current 143 and the second opposite polarity driving current 144 can be the same; and the polarities (positive or negative) of the first polarity driving current 141 and the second polarity driving current 142 can be the same.

[0071] In other words, the configuration of the first induction coil 101 and the second induction coil 102 can have reflective symmetry. In various aspects, the first polarity drive current 141 and the second polarity drive current 142 can have reflective symmetry. In various aspects, the first opposite polarity drive current 143 and the second opposite polarity drive current 144 can have reflective symmetry.

[0072] In each respect, the circulating current can flow from the first end 151 through the first induction coil 101 to the second end 152; and the circulating current flowing through the second induction coil 102 can flow from the second end 172 to the first end 171. In this respect, the voltage flowing from the first end 151 through the first induction coil 101 to the second end 152 can be the full voltage of the at least one capacitor bank 111; and the voltage flowing through the second induction coil 102 can be the full voltage of the at least one capacitor bank 111.

[0073] Therefore, the direction of the circulating current flowing from the first end 151 through the first induction coil 101 to the second end 152 is opposite to the direction of the circulating current flowing from the second end 172 through the second induction coil 102 to the first end 171. More specifically, the direction of the circulating current flowing through the first induction coil 101 can be opposite to the direction of the circulating current flowing through the second induction coil 102.

[0074] Additionally, the current flowing through the first induction coil 101 can generate an electromagnetic field as it flows from the first end 151 to the second end 152; and the current flowing through the second induction coil 102 can generate an electromagnetic field as it flows from the second end 172 to the first end 171. More specifically, the direction of the electromagnetic field from the first induction coil 101 can be opposite to the direction of the electromagnetic field from the second induction coil 102. Therefore, the electromagnetic field from the first induction coil 101 can cancel and / or substantially cancel the electromagnetic field (EMF) of the second induction coil 102. More specifically, the effective magnetic field generated by the first induction coil 101 and the second induction coil 102 can be greatly reduced.

[0075] In various aspects, the direction of the circulating current flowing through the first induction coil 101 may be opposite to the direction of the circulating current flowing through the second induction coil 102. In various aspects, the first induction coil 101, the second induction coil 102, and the at least one capacitor bank 111 may be connected and configured such that the electrical connection at the second end 152 of the first induction coil 101 and the electrical connection at the first end 171 of the second induction coil 102 have the same polarity; and the second end 152 of the first induction coil 101 may be arranged adjacent to the first end 171 of the second induction coil 102. In various aspects, the first induction coil 101, the second induction coil 102, and the at least one capacitor bank 111 may be connected and configured such that the current flowing to the first induction coil 101 at the second end 152 and the current flowing to the second induction coil 102 at the first end 171 may be in parallel; and the second end 152 of the first induction coil 101 may be arranged adjacent to the first end 171 of the second induction coil 102. In each respect, circulating current flows from the first end 151 through the first induction coil 101 to the second end 152; circulating current flows from the second end 172 through the second induction coil 102 to the first end 171; and the second end 152 of the first induction coil 101 can be arranged adjacent to the first end 171 of the second induction coil 102.

[0076] In various aspects, the first induction coil 101 and the second induction coil 102 can be arranged such that the metal workpiece 900 travels to a first end 151 of the first induction coil 101, exits from a second end 152 of the first induction coil 101, enters a first end 171 of the second induction coil 102, and exits from a second end 172 of the second induction coil 102. In various aspects, the first induction coil 101 and the second induction coil 102 can be configured to operate using a single implementation of the inverter 130.

[0077] Additionally, the arrangement of the first induction coil 101 and the second induction coil 102 can be configured relative to the conveying device 160, such that the metal workpiece 900 can travel from the workpiece inlet 211 to the first induction coil 101 and then to the second induction coil 102. Specifically, the arrangement of the first induction coil 101 and the second induction coil 102 can be configured relative to the conveying device 160, such that the metal workpiece 900 can travel from the workpiece inlet 211, enter the first end 151 of the first induction coil 101, exit from the second end 152 of the first induction coil 101, enter the first end 171 of the second induction coil 102, and exit from the second end 172 of the second induction coil 102.

[0078] In various aspects, the inverter 130 and / or the at least one capacitor bank 111 can provide a constant current. In various aspects, the inverter 130 and / or the at least one capacitor bank 111 can provide a pulsed current as known in the art. In various aspects, the inverter 130 and / or the at least one capacitor bank 111 can have a variable current.

[0079] Inverter 130 and / or the at least one capacitor bank 111 can be controlled via control panel 140 using controller 200. Controller 200 can monitor the current, voltage, and / or similar parameters of the first induction coil 101, second induction coil 102, at least one capacitor bank 111, inverter 130, and / or similar parameters. Furthermore, controller 200 can monitor and / or sense the temperature of the metal workpiece 900 and adjust the applied current / voltage of the first induction coil 101, second induction coil 102, at least one capacitor bank 111, inverter 130, and / or similar parameters accordingly. Alternatively, these adjustments to the applied current / voltage of the first induction coil 101, second induction coil 102, at least one capacitor bank 111, inverter 130, and / or similar parameters can be performed manually via control panel 140.

[0080] The applied alternating current induces an alternating magnetic field, which provides induction of current in the metal workpiece 900. The applied frequency and power can be selected based on several factors, one of which is the material of the metal workpiece 900. Lower power can be used for workpieces with poor conductivity, such as steel cans, while higher power may be required for materials with higher conductivity, such as aluminum cans. Frequency ranges can also be selected to optimize heating of the metal workpiece 900 and / or coating material 902, wherein a medium-frequency induction heater can have a frequency in the range of 5 kHz–15 kHz, while a higher-frequency induction heater can use 15 kHz–50 kHz. The medium-frequency induction heater can typically be air-cooled, while the higher-frequency induction heater may require water cooling. Typically, as is known, power levels can be set for a fixed or known load, resulting in predictable and repeatable output and heating performance.

[0081] exist Figures 1 to 4 The aspects of the induction heating system 100 illustrated and described herein can optionally be implemented in any other aspect of the induction heating system 100 illustrated and described in other figures. Furthermore, the aspects of the induction heating system 100 illustrated and described in other figures can optionally be implemented in... Figures 1 to 4 In various aspects of the induction heating system 100 illustrated in the figure.

[0082] Figure 5An exemplary schematic diagram of the induction heating system according to various aspects of this disclosure is shown.

[0083] In particular, Figure 5 An exemplary schematic diagram of an induction heating system 100 is shown, illustrating the current flowing through a first induction coil 101, a second induction coil 102, and the at least one capacitor bank 111 of the induction heating system 100 configured as described herein.

[0084] Specifically, the circulating current IL1 of the first induction coil 101 is illustrated as flowing from left to right, and the circulating current Ic1 of the at least one capacitor bank 111 is illustrated as flowing from left to right. On the other hand, the circulating current IL2 of the second induction coil 102 is illustrated as flowing from right to left, and the circulating current Ic2 of the at least one capacitor bank 111 is illustrated as flowing from right to left.

[0085] Therefore, the circulating current IL1 of the first induction coil 101 is opposite to the circulating current IL2 of the second induction coil 102. Furthermore, the circulating current Ic1 of the at least one capacitor bank 111 is opposite to the circulating current Ic2 of the at least one capacitor bank 111.

[0086] Therefore, the circulating current IL1 of the first induction coil 101 generates a first electromagnetic field; and the circulating current IL2 of the second induction coil 102 generates a second electromagnetic field. Furthermore, the first and second electromagnetic fields can be generated in opposite directions. Therefore, the first electromagnetic field from the first induction coil 101 can cancel and / or substantially cancel the second electromagnetic field from the second induction coil 102. Thus, the effective electromagnetic field of the induction heating system 100 can be greatly reduced.

[0087] Additionally, Figure 5 An inverter 130 is illustrated to provide drive current 132 to a first electrical interconnect 301 and a second electrical interconnect 303. In various aspects, the first electrical interconnect 301 and the second electrical interconnect 303 may be implemented as a bus, an isolated bus, a cable, a wire, and / or the like. The first electrical interconnect 301 may be electrically connected to a first connection of one or more capacitors in the at least one capacitor bank 111; and the second electrical interconnect 303 may be electrically connected to a second connection of the one or more capacitors in the at least one capacitor bank 111.

[0088] exist Figure 5The aspects of the induction heating system 100 illustrated and described herein can optionally be implemented in any other aspect of the induction heating system 100 illustrated and described in other figures. Furthermore, the aspects of the induction heating system 100 illustrated and described in other figures can optionally be implemented in... Figure 5 In various aspects of the induction heating system 100 illustrated in the figure.

[0089] Figure 6 An exemplary implementation of a first induction coil according to various aspects of this disclosure is illustrated.

[0090] In particular, Figure 6 Exemplary implementations of a first induction coil 101 according to various aspects of this disclosure are illustrated. In various aspects, the first induction coil 101 may include a first wire coil 291, a first non-magnetic core 261, and / or the like.

[0091] In various aspects, the first conductor coil 291 may be wound around the first non-magnetic core 261. In various aspects, the first non-magnetic core 261 may be a cylindrical structure formed of synthetic materials, non-ferrous materials, non-magnetic materials, plastic materials, glass fiber, and / or similar materials. In particular, the first non-magnetic core 261 may be configured to accommodate a conveying device 160 passing through it. Furthermore, the first non-magnetic core 261 may be configured to accommodate a metal workpiece 900 passing through it.

[0092] Furthermore, the first conductor coil 291 can be wound with a pitch P between each turn of the first conductor coil 291. Additionally, the number of turns of the first conductor coil 291, the amount of pitch of the first conductor coil 291, and the corresponding pitch angle can depend on the nature of the magnetic field required to heat the metal workpiece 900. These factors can vary depending on the type of the metal workpiece 900 being heated, the material of the metal workpiece 900, the characteristics of the coating material 902, the type of wire used in the first conductor coil 291, the power level used by the at least one capacitor bank 111, the inverter 130, etc. In some applications, multiple implementations of the first conductor coil 291 can be wound on the first non-magnetic core 261. In various aspects, the first conductor coil 291 may include multiple wires bound together by a sheath or other suitable binding material or sleeve. The first conductor coil 291 can be attached to the first non-magnetic core 261 by suitable materials such as glue, adhesive, epoxy resin, and / or the like.

[0093] In various aspects, the first polarity drive current 141 can be provided by the first electrical connection 241. The first electrical connection 241 can be connected to one end of the first conductor coil 291 at the first end 151 of the first induction coil 101. Furthermore, the first electrical connection 241 can be connected to one end of the first conductor coil 291 at the first end 151 of the first induction coil 101 via a mechanical connector. Additionally, the first electrical connection 241 can be connected to the at least one capacitor bank 111. Specifically, the first electrical connection 241 can be connected to the first electrical interconnect 301 of the at least one capacitor bank 111. Specifically, the first electrical connection 241 can be connected to the first electrical interconnect 301 and / or the at least one capacitor bank 111 via a mechanical connector. The first electrical connection 241 can be Litz wire, solid core wire, stranded wire, solid core copper wire, stranded copper wire, coaxial cable, and / or the like. In various aspects, the first electrical connection 241 can be Litz wire.

[0094] In various aspects, the first opposite polarity drive current 143 can be provided by the first opposite polarity electrical connection 243. The first opposite polarity electrical connection 243 can be connected to one end of the first conductor coil 291 at the second end 152 of the first induction coil 101. Furthermore, the first opposite polarity electrical connection 243 can be connected to one end of the first conductor coil 291 at the second end 152 of the first induction coil 101 via a mechanical connector. Additionally, the first opposite polarity electrical connection 243 can be connected to the at least one capacitor bank 111. Specifically, the first opposite polarity electrical connection 243 can be connected to the second electrical interconnect 303 of the at least one capacitor bank 111. In various aspects, the first opposite polarity electrical connection 243 can be connected to the second electrical interconnect 303 and / or the at least one capacitor bank 111 via a mechanical connector. The first opposite polarity electrical connection 243 can be Litz wire, solid core wire, stranded wire, solid core copper wire, stranded copper wire, coaxial cable, and / or the like. In all respects, the first opposite polarity electrical connection 243 can be a Litz wire.

[0095] exist Figure 6 The aspects of the induction heating system 100 illustrated and described herein can optionally be implemented in any other aspect of the induction heating system 100 illustrated and described in other figures. Furthermore, the aspects of the induction heating system 100 illustrated and described in other figures can optionally be implemented in... Figure 6 In various aspects of the induction heating system 100 illustrated in the figure.

[0096] Figure 7 An exemplary implementation of a second induction coil according to various aspects of this disclosure is illustrated.

[0097] In particular, Figure 7 Exemplary implementations of a second induction coil 102 according to various aspects of this disclosure are illustrated. In various aspects, the second induction coil 102 may include a second conductor coil 292, a second non-magnetic core 262, and / or the like. In various aspects, the second non-magnetic core 262 may be a portion of the first non-magnetic core 261, the second non-magnetic core 262 may be separate from the first non-magnetic core 261, and / or the second non-magnetic core 262 may be connected to the first non-magnetic core 261.

[0098] In various aspects, the second conductor coil 292 may be wound around the second non-magnetic core 262. In various aspects, the second non-magnetic core 262 may be a cylindrical structure formed of synthetic materials, non-ferrous materials, non-magnetic materials, plastic materials, glass fiber, and / or similar materials. Specifically, the second non-magnetic core 262 may be configured to accommodate a conveying device 160 passing through it. Furthermore, the second non-magnetic core 262 may be configured to accommodate a metal workpiece 900 passing through it.

[0099] Furthermore, the second conductor coil 292 can be wound with a pitch P between each turn of the second conductor coil 292. Additionally, the number of turns of the second conductor coil 292, the amount of pitch of the second conductor coil 292, and the corresponding pitch angle can depend on the nature of the magnetic field required to heat the metal workpiece 900. These factors can vary depending on the type of the metal workpiece 900 being heated, the material of the metal workpiece 900, the characteristics of the coating material 902, the type of wire used in the second conductor coil 292, the power level used by the at least one capacitor bank 111, the inverter 130, etc. In some applications, multiple implementations of the second conductor coil 292 can be wound on the second non-magnetic core 262. In various aspects, the second conductor coil 292 can include multiple wires bound together by a sheath or other suitable binding material or sleeve. The second conductor coil 292 can be attached to the second non-magnetic core 262 by suitable materials such as glue, adhesive, epoxy resin, and / or the like.

[0100] In various aspects, the second polarity drive current 142 can be provided by the second electrical connection 242. The second electrical connection 242 can be connected at the second end 172 of the second induction coil 102 to one end of the second conductor coil 292. Furthermore, the second electrical connection 242 can be connected at the second end 172 of the second induction coil 102 to one end of the second conductor coil 292 via a mechanical connector. Additionally, the second electrical connection 242 can be connected to the at least one capacitor bank 111. Specifically, the second electrical connection 242 can be connected to the first electrical interconnect 301 of the at least one capacitor bank 111. In various aspects, the second electrical connection 242 can be connected to the first electrical interconnect 301 and / or the at least one capacitor bank 111 via a mechanical connector. The second electrical connection 242 can be Litz wire, solid core wire, stranded wire, solid core copper wire, stranded copper wire, coaxial cable, and / or the like. In various aspects, the second electrical connection 242 can be Litz wire.

[0101] In various aspects, the second opposite polarity drive current 144 can be provided by the second opposite polarity electrical connection 244. The second opposite polarity electrical connection 244 can be connected at the first end 171 of the second induction coil 102 to one end of the second conductor coil 292. Furthermore, the second opposite polarity electrical connection 244 can be connected at the first end 171 of the first induction coil 101 to one end of the second conductor coil 292 via a mechanical connector. Additionally, the second opposite polarity electrical connection 244 can be connected to the at least one capacitor bank 111. Specifically, the second opposite polarity electrical connection 244 can be connected to the second electrical interconnect 303 of the at least one capacitor bank 111. In various aspects, the second opposite polarity electrical connection 244 can be connected to the second electrical interconnect 303 and / or the at least one capacitor bank 111 via a mechanical connector. The second opposite polarity electrical connection 244 can be Litz wire, solid core wire, stranded wire, solid core copper wire, stranded copper wire, coaxial cable, and / or the like. In all respects, the second opposite polarity electrical connection 244 can be a Litz wire.

[0102] In various aspects, the first induction coil 101, the second induction coil 102, and the at least one capacitor bank 111 may be connected and configured to result in a reduced current passing through the first conductor coil 291 and the second conductor coil 292.

[0103] In various aspects, the first induction coil 101, the second induction coil 102, and the at least one capacitor bank 111 can be connected and configured to result in reduced heating of the housing 201. In various aspects, the first induction coil 101, the second induction coil 102, and the at least one capacitor bank 111 can be connected and configured to result in increased curing efficiency. In various aspects, the first induction coil 101, the second induction coil 102, and the at least one capacitor bank 111 can be connected and configured to result in increased curing speed. In various aspects, the first induction coil 101, the second induction coil 102, and the at least one capacitor bank 111 can be connected and configured such that the electromagnetic field of the first induction coil 101 and the electromagnetic field of the second induction coil 102 result in a reduced effective magnetic field.

[0104] The induction heating system 100 may include a hood with an attached exhaust pipe connected to a suction device (not shown). The hood can be used to extract fumes that may be generated during the curing or heating process of the metal workpiece 900 by the induction heating system 100. The suction hood may also be integrated with the housing 201.

[0105] In various aspects, the housing 201 may be made of a metallic material (such as steel) to accommodate the magnetic field generated by the first induction coil 101 and the second induction coil 102. In various aspects, one or more optional ferromagnetic members may be arranged in the housing 201, said optional ferromagnetic members being configured to shape the magnetic field generated by the first induction coil 101 and the second induction coil 102.

[0106] The controller 200 can be used via the control panel 140 to perform operations of the induction heating system 100, including applying current to the first induction coil 101 and the second induction coil 102, controlling the delivery device 160, the inverter 130, the at least one capacitor bank 111, and / or similar operations. Alternatively, the controller 200 can be autonomous and control the operation of the induction heating system 100, including applying current to the first induction coil 101 and the second induction coil 102, controlling the delivery device 160, the inverter 130, the at least one capacitor bank 111, and / or similar operations.

[0107] The conveying device 160 may, but does not necessarily, be under the control of the controller 200 and / or the control panel 140. The conveying device 160 may be used to move the metal workpiece 900 through the induction heating system 100, specifically through the magnetic field generated within the housing 201 by the first induction coil 101 and the second induction coil 102.

[0108] The exemplary implementation illustrated herein can be an air-cooled implementation of the first induction coil 101 and the second induction coil 102. In various aspects, such as Figures 8 to 17 The cooling devices illustrated herein (such as blowers, fans, air movers, and / or the like) may be arranged in the housing 201 as needed, along with other control devices. Alternatively, the induction heating system 100 may be equipped for water cooling, as is known in the art.

[0109] In various aspects, the induction heating system 100 may be implemented with a blower, a heater, and / or the like to supply air, heated air, and / or the like to the induction heating system 100, the conveying device 160, the metal workpiece 900, the coating material 902, and / or the like. In various aspects, the blower and / or the heater may help remove moisture from the induction heating system 100, the conveying device 160, and / or the like generated by the curing process associated with the coating material 902.

[0110] The first conductor coil 291 and the second conductor coil 292 can be made of any suitable material, as is well known in the art. For lower current systems, magnetic wire made of copper (such as that commonly used in motor coils) can be used. For higher currents, it may be desirable to use Litz wire for the first conductor coil 291 and the second conductor coil 292, which may be more efficient for reducing heating of the coils. Water-cooled oil lines can be implemented in the induction heating system 100 when required, for operation at higher power and higher frequencies.

[0111] In a particular aspect, the first conductor coil 291 and / or the second conductor coil 292 may be configured to deliver currents of 100A to 600A, 100A to 200A, 200A to 300A, 300A to 400A, 400A to 500A, or 500A to 600A.

[0112] In a particular aspect, the first conductor coil 291 and / or the second conductor coil 292 may be configured to deliver a current greater than 100A, 200A, 300A, 400A, or 500A.

[0113] In a particular aspect, the first conductor coil 291 and / or the second conductor coil 292 may be configured to have 10 to 100 turns, 10 to 20 turns, 20 to 30 turns, 30 to 40 turns, 40 to 50 turns, 50 to 60 turns, 60 to 70 turns, 70 to 80 turns, 80 to 90 turns, or 90 to 100 turns.

[0114] In particular, the inverter 130 can be configured to deliver 200V to 800V, 200V to 300V, 300V to 400V, 400V to 500V, 500V to 600V, 600V to 700V, or 700V to 800V.

[0115] In particular, the inverter 130 can be configured to deliver voltages greater than 200V, 300V, 400V, 4500V, 600V, or 700V.

[0116] In particular, the inverter 130 can be configured to receive supply voltages of 100V to 800V, 100V to 300V, 300V to 400V, 400V to 500V, 500V to 600V, 600V to 700V, or 700V to 800V.

[0117] In particular, the inverter 130 can be configured to receive a supply current of 5A to 50A, 5A to 10A, 10A to 15A, 15A to 20A, 20A to 30A, 30A to 40A, or 40A to 50A.

[0118] In particular, the inverter 130 can be configured to deliver frequencies of 2 kHz to 20 kHz, 2 kHz to 4 kHz, 4 kHz to 6 kHz, 6 kHz to 8 kHz, 8 kHz to 10 kHz, 10 kHz to 12 kHz, 12 kHz to 14 kHz, 14 kHz to 16 kHz, 16 kHz to 18 kHz, or 18 kHz to 20 kHz.

[0119] In various aspects, the at least one capacitor bank 111 may implement one or more capacitors such that the at least one capacitor bank 111 may have a total capacitance of 5µF to 50µF, 5µF to 10µF, 10µF to 15µF, 15µF to 20µF, 20µF to 25µF, 25µF to 30µF, 30µF to 40µF, or 40µF to 50µF.

[0120] Therefore, implementing the induction heating system 100 using the disclosed configuration of the first induction coil 101 and the second induction coil 102 can be more efficient. Additionally, implementing the induction heating system 100 using the disclosed configuration of the first induction coil 101 and the second induction coil 102 can reduce the current carrying capacity in each coil, which in turn reduces heat, electrical tension on the at least one capacitor bank 111, and reduces grounding current by reducing the magnetic field.

[0121] Furthermore, by utilizing the disclosed configuration of the first induction coil 101 and the second induction coil 102 to implement the induction heating system 100, a smaller housing 201 can be achieved, thereby reducing the overall system footprint. Additionally, by utilizing the disclosed configuration of the first induction coil 101 and the second induction coil 102 to implement the induction heating system 100, the efficiency of the curing process of the metal workpiece 900 can be increased. Moreover, by utilizing the disclosed configuration of the first induction coil 101 and the second induction coil 102 to implement the induction heating system 100, Litz wire connections designed for medium-frequency, high-current applications can be implemented.

[0122] Additionally, by implementing the induction heating system 100 using the disclosed configuration of the first induction coil 101 and the second induction coil 102, the processing rate (production line rate) of the metal workpiece 900 can be increased. In particular, by implementing the induction heating system 100 using the disclosed configuration of the first induction coil 101 and the second induction coil 102, processing at a production line rate greater than that currently available in the industry can be achieved.

[0123] For example, the processing of a particular workpiece type is currently limited to 2,600 workpieces per minute. In contrast, the induction heating system 100, implemented using the disclosed configuration of a first induction coil 101 and a second induction coil 102 operated by a single implementation of inverter 130, can be configured to process 3,000 or more workpieces per minute.

[0124] In various aspects, by utilizing the disclosed configuration of the first induction coil 101 and the second induction coil 102 to implement the induction heating system 100, a lower current-carrying capacity can be achieved within the coil wires of the first induction coil 101 and the second induction coil 102, and smaller wire gauge wires can be used. This reduces the overall cost of the system. In various aspects, by utilizing the disclosed configuration of the first induction coil 101 and the second induction coil 102 to implement the induction heating system 100, a lower current-carrying capacity can be achieved, and the effective magnetic field generated by the coils and connecting wires of the first induction coil 101 and the second induction coil 102 can be reduced, thereby inducing less loss by heating the housing 201 by eddy current in response to the operation of the first induction coil 101 and the second induction coil 102.

[0125] In various aspects, implementing the induction heating system 100 using the disclosed configuration of the first induction coil 101 and the second induction coil 102 allows for the use of Litz wire with lower current ratings, or avoids the use of a two-wire parallel winding structure for the first induction coil 101 and / or the second induction coil 102. Furthermore, implementing the induction heating system 100 using the disclosed configuration of the first induction coil 101 and / or the second induction coil 102 results in less heating of the housing 201. Therefore, the housing 201 can be implemented with a smaller configuration with less power loss, thus the overall efficiency of the induction heating system 100 is not compromised.

[0126] exist Figure 7 The aspects of the induction heating system 100 illustrated and described herein can optionally be implemented in any other aspect of the induction heating system 100 illustrated and described in other figures. Furthermore, the aspects of the induction heating system 100 illustrated and described in other figures can optionally be implemented in... Figure 7 In various aspects of the induction heating system 100 illustrated in the figure.

[0127] Figure 8 A schematic side view of an induction heating system that implements a cooling system according to various aspects of this disclosure is shown.

[0128] In particular, Figure 8 A schematic side view of an induction heating system 100 that can implement a cooling system 300 is illustrated. In various aspects, the cooling system 300 may include at least one fan 302, at least one air guide 304, at least one exhaust air vent 306, and / or the like. In various aspects, the at least one air guide 304 is configured to form an air chamber. In various aspects, the at least one air guide 304 may be a 3D printed structure, a synthetic material structure, a plastic structure, a metal structure, and / or the like.

[0129] In various aspects, the cooling system 300 can generate a cooling airflow 399 and direct the cooling airflow 399 to the first induction coil 101 and / or the second induction coil 102 for cooling. In various aspects, the cooling airflow 399 can form an air knife directed to the first induction coil 101 and / or the second induction coil 102 for cooling. In various aspects, the cooling airflow 399 can have a flow rate greater than 500 cubic feet per minute (CFM). In various aspects, the cooling airflow 399 can be as follows: Figure 8 As illustrated, it is parallel to the z-axis. In various aspects, the cooling airflow 399 can have a flow rate greater than 500 CFM, 700 CFM, 900 CFM, 1100 CFM, or 1300 CFM.

[0130] In various aspects, the at least one fan 302 can direct ambient air from outside the housing 201 into the at least one air guide 304. In various aspects, the at least one fan 302 can be implemented as an air mover, fan, blower, and / or the like. In various aspects, the at least one fan 302 can be attached directly or indirectly to the housing 201. In various aspects, the at least one fan 302 can be in fluid communication with one or more air exhaust ports 240. In various aspects, the at least one fan 302 can be controlled by a controller 200.

[0131] In various aspects, the at least air guide 304 can receive air from the at least one fan 302 and direct the air to the first induction coil 101 and / or the second induction coil 102. In various aspects, the at least air guide 304 and the at least one fan 302 can generate a cooling airflow 399. Furthermore, the cooling airflow 399 can continue through the first induction coil 101 and / or the second induction coil 102 and be directed to the at least one exhaust air port 306, and then directed to the outside of the housing 201.

[0132] In various aspects, there can be such as Figure 8 Multiple implementations of the at least air guide 304 are illustrated. In various aspects, for each implementation of the at least one fan 302, there may be an implementation of the at least one air guide 304.

[0133] In various aspects, multiple implementations of the at least one fan 302 may be associated with the implementation of the at least one air guide 304. In various aspects, such as Figure 13 As illustrated, a single implementation of the at least air guide 304 may be associated with multiple implementations of the at least one fan 302.

[0134] In various aspects, the at least one exhaust air vent 306 may be associated with the implementation of the one or more air vents 240. In various aspects, the at least one exhaust air vent 306 may include structures for restricting the flow of air through it.

[0135] In various aspects, the at least air guide 304 may be configured to at least partially guide airflow, control airflow, deliver airflow, homogenize airflow, smooth airflow, regulate airflow, normalize airflow, homogenize airflow, and / or the like. In various aspects, the at least air guide 304 may be configured to at least partially generate cooling airflow 399.

[0136] In various aspects, the cooling system 300 as described herein can be configured to ensure uniform cooling airflow, such that the cooling airflow 399 is uniform across the entire surface of the first induction coil 101 and / or the second induction coil 102. In various aspects, the cooling system 300 as described herein can be configured to improve the operation of the induction heating system 100.

[0137] exist Figure 8 The aspects of the induction heating system 100 illustrated and described herein can optionally be implemented in any other aspect of the induction heating system 100 illustrated and described in other figures. Furthermore, the aspects of the induction heating system 100 illustrated and described in other figures can optionally be implemented in... Figure 8 In various aspects of the induction heating system 100 illustrated in the figure.

[0138] Figure 9 A partial front perspective view of an induction heating system implementing a cooling system according to various aspects of this disclosure is shown.

[0139] Figure 10 Examples are given based on Figure 9 A partial side view of the induction heating system that enables the cooling system.

[0140] Figure 11 Examples are given based on Figure 9 A partial rear view of the induction heating system that enables the cooling system.

[0141] Figure 12 Examples are given based on Figure 9 A partial front perspective view of the induction heating system that enables the cooling system.

[0142] In various aspects, the at least air guide 304 may include an attachment structure 310, an air inlet 314, a first duct section 311, a second duct section 312, an outlet ventilation guide 313, an air outlet 316, an internal airflow guide structure 318, and / or the like.

[0143] In various aspects, the attachment structure 310 may be configured to be attached directly or indirectly to the at least one fan 302. In various aspects, the attachment structure 310 may include an aperture for receiving fasteners for attachment to the housing 201 and / or the at least one fan 302. In various aspects, the attachment structure 310 may support the at least one air guide 304 within the housing 201.

[0144] In various aspects, the air inlet 314 may be configured and arranged to receive air from the at least one fan 302. In various aspects, the air inlet 314 may be configured and arranged to be in fluid communication with the at least one fan 302. In various aspects, the air inlet 314 may be in fluid communication with the first duct section 311.

[0145] In various aspects, the first duct section 311 may be configured and arranged for fluid communication with the airflow inlet 314 and the second duct section 312. In various aspects, the first duct section 311 may be configured to attach to the airflow inlet 314 and the second duct section 312. In various aspects, the first duct section 311 may accommodate the internal airflow guide structure 318. In various aspects, the first duct section 311 may guide air from the airflow inlet 314 and / or the at least one fan 302 through the at least one air guide 304 to the second duct section 312.

[0146] In various aspects, the first conduit section 311 may be configured to at least partially guide, control, deliver, homogenize, smooth, regulate, normalize, or uniformize airflow within the at least air guide 304, and / or similar purposes. In various aspects, the first conduit section 311 may be configured to at least partially generate a cooling airflow 399.

[0147] In various aspects, the second duct section 312 may be configured and arranged for fluid communication with the air outlet 316 and the first duct section 311. In various aspects, the second duct section 312 may be configured to attach to the first duct section 311. In various aspects, the second duct section 312 may partially accommodate the outlet ventilation guide 313. In various aspects, the second duct section 312 may guide air from the first duct section 311 through the at least one air guide 304 and through the outlet ventilation guide 313 to the air outlet 316. In various aspects, the second duct section 312 may be configured to at least partially guide, control, deliver, homogenize, smooth, regulate, normalize, or uniformize airflow within the at least one air guide 304, and / or the like. In various aspects, the second duct section 312 may be configured to at least partially generate a cooling airflow 399.

[0148] In various aspects, the outlet ventilation guide 313 may be configured and arranged for fluid communication with the second duct section 312. In various aspects, the outlet ventilation guide 313 may be configured to attach to the second duct section 312. In various aspects, the outlet ventilation guide 313 may guide air from the second duct section 312 through the airflow outlet 316. In various aspects, the outlet ventilation guide 313 may be configured to at least partially guide, control, deliver, homogenize, smooth, regulate, normalize, or uniformize airflow within the at least air guide 304, and / or the like. In various aspects, the outlet ventilation guide 313 may be configured to at least partially generate a cooling airflow 399.

[0149] In various aspects, the air outlet 316 may be configured to discharge a cooling airflow 399 from the at least air guide 304. In various aspects, the air outlet 316 may be configured to at least partially guide, control, deliver, homogenize, smooth, regulate, normalize, or uniformize airflow within the at least air guide 304, and / or similarly. In various aspects, the air outlet 316 may be configured to at least partially generate the cooling airflow 399.

[0150] In various aspects, the internal airflow guiding structure 318 may be arranged within the at least air guide 304, the second duct section 312, and / or the first duct section 311. In various aspects, the internal airflow guiding structure 318 may be a honeycomb structure. In various aspects, the internal airflow guiding structure 318 may be a honeycomb airflow rectifier. In various aspects, the internal airflow guiding structure 318 may include walls arranged in various planes perpendicular to the y-axis and x-axis. The walls may be perpendicular to the cooling airflow 399 and / or the z-axis.

[0151] In various aspects, the internal airflow guiding structure 318 may be configured to at least partially guide airflow, control airflow, deliver airflow, homogenize airflow, smooth airflow, regulate airflow, normalize airflow, homogenize airflow, and / or the like within the at least air guide 304. In various aspects, the internal airflow guiding structure 318 may be configured to at least partially generate cooling airflow 399.

[0152] In various aspects, the cooling system 300 as described herein can be configured to ensure uniform cooling airflow, such that the cooling airflow 399 is uniform across the entire surface of the first induction coil 101 and / or the second induction coil 102. In various aspects, the cooling system 300 as described herein can be configured to improve the operation of the induction heating system 100.

[0153] exist Figures 9 to 12 The aspects of the induction heating system 100 illustrated and described herein can optionally be implemented in any other aspect of the induction heating system 100 illustrated and described in other figures. Furthermore, the aspects of the induction heating system 100 illustrated and described in other figures can optionally be implemented in... Figures 9 to 12 In various aspects of the induction heating system 100 illustrated in the figure.

[0154] Figure 13 A schematic side view of an induction heating system that implements a cooling system according to various aspects of this disclosure is shown.

[0155] In particular, Figure 13 Another schematic side view of an induction heating system 100 that can implement cooling system 300 is illustrated. In various aspects, cooling system 300 may include at least one fan 302 as previously described, at least one exhaust air vent 306, and / or similar features. Furthermore, Figure 13 Examples illustrate how multiple implementations of the at least one fan 302 can be associated with an implementation of the at least one air guide 304. In various aspects, a single implementation of the at least one air guide 304 can be associated with multiple implementations of the at least one fan 302. In various aspects, the at least one fan 302 can be arranged at least partially within the at least one air guide 304.

[0156] In various aspects, the at least air guide 304 may be configured to at least partially guide airflow, control airflow, deliver airflow, homogenize airflow, smooth airflow, regulate airflow, normalize airflow, homogenize airflow, and / or the like. In various aspects, the at least air guide 304 may be configured to at least partially generate cooling airflow 399.

[0157] In various aspects, the cooling system 300 as described herein can be configured to ensure uniform cooling airflow, such that the cooling airflow 399 is uniform across the entire surface of the first induction coil 101 and / or the second induction coil 102. In various aspects, the cooling system 300 as described herein can be configured to improve the operation of the induction heating system 100.

[0158] exist Figure 13 The aspects of the induction heating system 100 illustrated and described herein can optionally be implemented in any other aspect of the induction heating system 100 illustrated and described in other figures. Furthermore, the aspects of the induction heating system 100 illustrated and described in other figures can optionally be implemented in... Figure 13In various aspects of the induction heating system 100 illustrated in the figure.

[0159] Figure 14 A partial front perspective view of the induction heating system illustrating the implementation of the cooling system according to various aspects of this disclosure is shown.

[0160] Figure 15 Examples are given based on Figure 14 A partial side view of the induction heating system that enables the cooling system.

[0161] Figure 16 Examples are given based on Figure 14 A partial front view of the induction heating system that enables the cooling system.

[0162] Figure 17 Examples are given based on Figure 14 Another partial front view of the induction heating system that enables the cooling system.

[0163] Figure 18 Examples are given based on Figure 14 A partial top view of the induction heating system that enables the cooling system.

[0164] In various aspects, the at least air guide 304 may include an attachment structure 340, an airflow inlet 344, an airflow outlet 346, an airflow guide structure 348, and / or the like. In various aspects, the at least air guide 304 may include, for example, Figure 17 and Figure 18 The internal airflow guiding structure 358 is illustrated in the example.

[0165] In various aspects, the attachment structure 340 may be configured to be attached directly or indirectly to the housing 201. In various aspects, the attachment structure 340 may include an aperture for receiving fasteners for attachment to the housing 201. In various aspects, the attachment structure 340 may support the at least air guide 304 within the housing 201.

[0166] In various aspects, airflow inlet 344 may be configured and arranged to receive air from the at least one fan 302. In various aspects, airflow inlet 344 may be configured and arranged to be in fluid communication with the at least one fan 302. In various aspects, airflow inlet 314 may be in fluid communication with airflow guide structure 348. In various aspects, the at least one fan 302 may be arranged within airflow inlet 314.

[0167] In various aspects, the airflow guiding structure 348 can guide air from the airflow inlet 344 and / or the at least one fan 302 through the at least one air guide 304 to the airflow outlet 346. In various aspects, the airflow guiding structure 348 can be configured to form a wall structure of the at least one air guide 304.

[0168] In various aspects, the airflow guiding structure 348 may be configured to at least partially guide, control, deliver, homogenize, smooth, regulate, normalize, or uniformize airflow within the at least air guide 304, and / or similar purposes. In various aspects, the airflow guiding structure 348 may be configured to at least partially generate a cooling airflow 399.

[0169] In various aspects, the air outlet 346 may be configured to discharge a cooling airflow 399 from the at least air guide 304. In various aspects, the air outlet 346 may be configured to at least partially guide, control, deliver, homogenize, smooth, regulate, normalize, or uniformize airflow within the at least air guide 304, and / or similarly. In various aspects, the air outlet 346 may be configured to at least partially generate the cooling airflow 399.

[0170] In various aspects, the internal airflow guiding structure 358 may be arranged within the at least the air guide 304, the airflow outlet 346, and / or the like. In various aspects, the internal airflow guiding structure 358 may be a screen structure. In various aspects, the internal airflow guiding structure 318 may be a screen-type airflow rectifier.

[0171] In various aspects, the internal airflow guiding structure 358 may be configured to at least partially guide airflow, control airflow, deliver airflow, homogenize airflow, smooth airflow, regulate airflow, normalize airflow, homogenize airflow, and / or the like within the at least air guide 304. In various aspects, the internal airflow guiding structure 358 may be configured to at least partially generate cooling airflow 399.

[0172] In various aspects, the cooling system 300 as described herein can be configured to ensure uniform cooling airflow, such that the cooling airflow 399 is uniform across the entire surface of the first induction coil 101 and / or the second induction coil 102. In various aspects, the cooling system 300 as described herein can be configured to improve the operation of the induction heating system 100.

[0173] exist Figures 14 to 17The aspects of the induction heating system 100 illustrated and described herein can optionally be implemented in any other aspect of the induction heating system 100 illustrated and described in other figures. Furthermore, the aspects of the induction heating system 100 illustrated and described in other figures can optionally be implemented in... Figures 14 to 17 In various aspects of the induction heating system 100 illustrated in the figure.

[0174] The following are several non-limiting examples of various aspects of this disclosure.

[0175] An example: An induction heating system includes a first induction coil having a first end and a second end. The induction heating system further includes a second induction coil having a first end and a second end. The system also includes at least one capacitor bank connected to and in parallel with the first and second induction coils. The system further includes an inverter configured to provide drive current to the at least one capacitor bank, the first induction coil, and the second induction coil. The system also includes a conveying device configured to move a metal workpiece through the first and second induction coils. The system further includes a system in which the direction of the circulating current flowing through the first induction coil is opposite to the direction of the circulating current flowing through the second induction coil.

[0176] The above examples may further include any one or a combination of more than one of the following examples: The induction heating system of the above examples, wherein the first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured such that the electrical connection at the second end of the first induction coil and the electrical connection at the first end of the second induction coil have the same polarity; and wherein the second end of the first induction coil is arranged adjacent to the first end of the second induction coil. The induction heating system of the above examples, wherein the first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured such that the current flowing to the first induction coil at the second end and the current flowing to the second induction coil at the first end are in parallel; and wherein the second end of the first induction coil is arranged adjacent to the first end of the second induction coil. The induction heating system of the above examples, wherein a circulating current flows from the first end through the first induction coil to the second end; wherein a circulating current flows from the second end to the first end through the second induction coil; and wherein the second end of the first induction coil is arranged adjacent to the first end of the second induction coil. In the induction heating system of the above example, the conveying device, the first induction coil, and the second induction coil are configured and arranged such that the conveying device moves the metal workpiece sequentially past the first end of the first induction coil, the second end of the first induction coil, the first end of the second induction coil, and the second end of the second induction coil. In the induction heating system of the above example, the at least one capacitor bank is configured to generate an output voltage; and the at least one capacitor bank, the first induction coil, and the second induction coil are configured such that each of the first and second induction coils receives the output voltage from the at least one capacitor bank. In the induction heating system of the above example, the first induction coil and the second induction coil are configured to operate using a single implementation of the inverter. In the induction heating system of the above example, the first induction coil includes a first conductor coil and a first non-magnetic core; and the second induction coil includes a second conductor coil and a second non-magnetic core. In the induction heating system of the above example, the first conductor coil includes Litz wire; and the second conductor coil includes Litz wire. In the induction heating system of the above example, the first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured to reduce the current flowing through the first conductor coil and the second conductor coil.In the induction heating system of the above examples, the first wire coil is wound around the first non-magnetic core; and the second wire coil is wound around the second non-magnetic core. In the induction heating system of the above examples, the first non-magnetic core includes a cylindrical structure; and the second non-magnetic core includes a cylindrical structure. In the induction heating system of the above examples, the first non-magnetic core is configured to accommodate the conveying device passing through it; and the second non-magnetic core is configured to accommodate the conveying device passing through it. The induction heating system of the above examples includes a housing configured to accommodate at least the first induction coil, the second induction coil, and the at least one capacitor bank. The induction heating system of the above examples includes a cooling system including at least one fan and at least one air guide, wherein the at least one air guide includes an internal airflow guiding structure. In the induction heating system of the above examples, the internal airflow guiding structure includes a honeycomb airflow rectifier. In the induction heating system of the above examples, the internal airflow guiding structure includes a screen airflow rectifier. In the induction heating system of the above examples, the first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured to reduce heating of the at least one housing. In the induction heating system of the above examples, the first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured to increase curing efficiency. In the induction heating system of the above examples, the first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured to increase processing speed. In the induction heating system of the above examples, the first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured such that the electromagnetic fields of the first induction coil and the second induction coil reduce the effective magnetic field. In the induction heating system of the above examples, the metal workpiece includes metal components, metal structural components, container portions, containers, lids for containers, and / or lids for tubular containers. In the induction heating system of the above examples, the conveying device is further configured to convey the metal workpiece to the induction heating system. In the induction heating system of the above example, the conveying device is further configured to convey the metal workpiece out of the induction heating system.

[0177] An example: An induction heating system includes a first induction coil having a first end and a second end. The induction heating system further includes a second induction coil having a first end and a second end. The system also includes at least one capacitor bank connected to and configured in parallel with the first and second induction coils. The system further includes an inverter configured to provide drive current to the at least one capacitor bank, the first induction coil, and the second induction coil. The system also includes a conveying device configured to move a metal workpiece through the first and second induction coils. The system further includes wherein the first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured such that an electrical connection at the second end of the first induction coil and an electrical connection at the first end of the second induction coil have the same polarity. The system further includes wherein the second end of the first induction coil is arranged adjacent to the first end of the second induction coil.

[0178] The above examples may further include any one or a combination of more than one of the following examples: The induction heating system of the above examples, wherein the first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured such that the current flowing to the first induction coil at the second end and the current flowing to the second induction coil at the first end are in parallel; and wherein the second end of the first induction coil is arranged adjacent to the first end of the second induction coil. The induction heating system of the above examples, wherein a circulating current flows from the first end to the second end through the first induction coil; wherein a circulating current flows from the second end to the first end through the second induction coil; and wherein the second end of the first induction coil is arranged adjacent to the first end of the second induction coil. The induction heating system of the above examples, wherein the conveying device, the first induction coil, and the second induction coil are configured and arranged such that the conveying device moves the metal workpiece sequentially through the first end of the first induction coil, the second end of the first induction coil, the first end of the second induction coil, and the second end of the second induction coil. In the induction heating system of the above example, the at least one capacitor bank is configured to generate an output voltage; and the at least one capacitor bank, the first induction coil, and the second induction coil are configured such that each of the first induction coil and the second induction coil receives the output voltage from the at least one capacitor bank. In the induction heating system of the above example, the first induction coil and the second induction coil are configured to operate using a single implementation of the inverter. In the induction heating system of the above example, the first induction coil includes a first conductor coil and a first non-magnetic core; and the second induction coil includes a second conductor coil and a second non-magnetic core. In the induction heating system of the above example, the first conductor coil includes Litz wire; and the second conductor coil includes Litz wire. In the induction heating system of the above example, the first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured to reduce the current passing through the first conductor coil and the second conductor coil. In the induction heating system of the above example, the first conductor coil is wound on the first non-magnetic core; and the second conductor coil is wound on the second non-magnetic core. In the induction heating system of the above example, the first non-magnetic core includes a cylindrical structure; and the second non-magnetic core includes a cylindrical structure.In the induction heating system of the above examples, the first non-magnetic core is configured to accommodate the conveying device passing through it; and the second non-magnetic core is configured to accommodate the conveying device passing through it. The induction heating system of the above examples includes at least one housing configured to accommodate at least the first induction coil, the second induction coil, and the at least one capacitor bank. The induction heating system of the above examples includes a cooling system comprising at least one fan and at least one air guide, wherein the at least one air guide includes an internal airflow guiding structure. The induction heating system of the above examples includes a honeycomb airflow rectifier. The induction heating system of the above examples includes a screen airflow rectifier. The induction heating system of the above examples includes the first induction coil, the second induction coil, and the at least one capacitor bank connected and configured to reduce heating of the at least one housing. The induction heating system of the above examples includes the first induction coil, the second induction coil, and the at least one capacitor bank connected and configured to increase curing efficiency. In the induction heating system of the above examples, the first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured to increase the processing speed. In the induction heating system of the above examples, the first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured such that the electromagnetic fields of the first and second induction coils reduce the effective magnetic field. In the induction heating system of the above examples, the metal workpiece includes a metal component, a metal structural component, a portion of a container, a container, a lid for a container, and / or a lid for a tubular container. In the induction heating system of the above examples, the conveying device is further configured to convey the metal workpiece to the induction heating system. In the induction heating system of the above examples, the conveying device is further configured to convey the metal workpiece out of the induction heating system.

[0179] An example: An induction heating system includes a first induction coil, the first induction coil including a first end and a second end. The induction heating system further includes a second induction coil, the second induction coil including a first end and a second end. The system also includes at least one capacitor bank connected to the first induction coil and the second induction coil and configured in parallel with the first induction coil and the second induction coil. The system also includes an inverter configured to provide drive current to the at least one capacitor bank, the first induction coil, and the second induction coil. The system also includes a conveying device configured to move a metal workpiece through the first induction coil and the second induction coil. The system further includes a current flowing to the first induction coil at the second end and a current flowing to the second induction coil at the first end, which are connected in parallel. The system also includes a second end of the first induction coil arranged adjacent to the first end of the second induction coil.

[0180] The above examples may further include any one or a combination of more than one of the following examples: The induction heating system of the above examples, wherein the first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured such that the electrical connection at the second end of the first induction coil and the electrical connection at the first end of the second induction coil have the same polarity; and wherein the second end of the first induction coil is arranged adjacent to the first end of the second induction coil. The induction heating system of the above examples, wherein a circulating current flows from the first end to the second end through the first induction coil; wherein a circulating current flows from the second end to the first end through the second induction coil; and wherein the second end of the first induction coil is arranged adjacent to the first end of the second induction coil. The induction heating system of the above examples, wherein the conveying device, the first induction coil, and the second induction coil are configured and arranged such that the conveying device moves the metal workpiece sequentially through the first end of the first induction coil, the second end of the first induction coil, the first end of the second induction coil, and the second end of the second induction coil. In the induction heating system of the above example, the at least one capacitor bank is configured to generate an output voltage; and the at least one capacitor bank, the first induction coil, and the second induction coil are configured such that each of the first induction coil and the second induction coil receives the output voltage from the at least one capacitor bank. In the induction heating system of the above example, the first induction coil and the second induction coil are configured to operate using a single implementation of the inverter. In the induction heating system of the above example, the first induction coil includes a first conductor coil and a first non-magnetic core; and the second induction coil includes a second conductor coil and a second non-magnetic core. In the induction heating system of the above example, the first conductor coil includes Litz wire; and the second conductor coil includes Litz wire. In the induction heating system of the above example, the first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured to reduce the current passing through the first conductor coil and the second conductor coil. In the induction heating system of the above example, the first conductor coil is wound on the first non-magnetic core; and the second conductor coil is wound on the second non-magnetic core. In the induction heating system of the above example, the first non-magnetic core includes a cylindrical structure; and the second non-magnetic core includes a cylindrical structure.In the induction heating system of the above examples, the first non-magnetic core is configured to accommodate the conveying device passing through it; and the second non-magnetic core is configured to accommodate the conveying device passing through it. The induction heating system of the above examples includes a housing configured to accommodate at least the first induction coil, the second induction coil, and the at least one capacitor bank. The induction heating system of the above examples includes a cooling system comprising at least one fan and at least one air guide, wherein the at least one air guide includes an internal airflow guiding structure. The induction heating system of the above examples includes a honeycomb airflow rectifier. The induction heating system of the above examples includes a screen airflow rectifier. The induction heating system of the above examples includes the first induction coil, the second induction coil, and the at least one capacitor bank connected and configured to reduce heating of the at least one housing. The induction heating system of the above examples includes the first induction coil, the second induction coil, and the at least one capacitor bank connected and configured to increase curing efficiency. In the induction heating system of the above examples, the first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured to increase the processing speed. In the induction heating system of the above examples, the first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured such that the electromagnetic fields of the first and second induction coils reduce the effective magnetic field. In the induction heating system of the above examples, the metal workpiece includes a metal component, a metal structural component, a portion of a container, a container, a lid for a container, and / or a lid for a tubular container. In the induction heating system of the above examples, the conveying device is further configured to convey the metal workpiece to the induction heating system. In the induction heating system of the above examples, the conveying device is further configured to convey the metal workpiece out of the induction heating system.

[0181] It should be understood that although terms such as “first” and “second” may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this disclosure, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element. As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items.

[0182] It should be understood that when an element such as a layer, region, or substrate is referred to as being "on" or extending "above" another element, it may be directly on or directly extending above that other element, or an intermediary element may be present. Conversely, when an element is referred to as being "directly on" or "directly extending above" another element, no intermediary element is present. Similarly, it should be understood that when an element such as a layer, region, or substrate is referred to as being "above" or extending "above" another element, it may be directly above or directly extending above that other element, or an intermediary element may be present. Conversely, when an element is referred to as being "directly above" or "directly extending above" another element, no intermediary element is present. It should also be understood that when an element is referred to as being "connected" or "attached" to another element, it may be directly connected or attached to that other element, or an intermediary element may be present. Conversely, when an element is referred to as being "directly connected" or "directly attached" to another element, no intermediary element is present.

[0183] In this document, relative terms such as “below” or “above” or “upper” or “lower” or “horizontal” or “vertical” may be used to describe the relationship between one element, layer, or region and another, as illustrated in the accompanying drawings. It should be understood that these terms, and those discussed above, are intended to cover different orientations of the device other than those depicted in the accompanying drawings.

[0184] The terminology used herein is for descriptive purposes only and is not intended to limit this disclosure. As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that when the terms “comprising,” “including,” “containing,” and / or “comprise” are used herein, they indicate the presence of the stated feature, integer, step, operation, element, and / or component, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0185] Unless otherwise defined, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. It will also be understood that the terms used herein shall be interpreted as having the same meaning as they have in the context of this specification and the relevant field, and shall not be interpreted in an idealized or overly formal sense unless expressly defined herein.

[0186] Numerous features and advantages of this disclosure are apparent from the detailed description, and therefore the appended claims are intended to cover all such features and advantages of this disclosure that fall within the true spirit and scope of this disclosure. Furthermore, since numerous modifications and variations will readily conceive of those skilled in the art, it is not intended to limit this disclosure to the precise constructions and operations illustrated and described; therefore, all suitable modifications and equivalents falling within the scope of this disclosure may be invoked.

Claims

1. An induction heating system configured to at least partially cure a coating material applied to the surface of a metal workpiece, the induction heating system comprising: A first induction coil, the first induction coil including a first end and a second end; The second induction coil includes a first end and a second end; At least one capacitor bank, the at least one capacitor bank being connected to the first induction coil and the second induction coil, and being configured in parallel with the first induction coil and the second induction coil; An inverter configured to provide drive current to the at least one capacitor bank, the first induction coil, and the second induction coil; as well as A conveying device configured to move the metal workpiece through the first induction coil and the second induction coil. The circulating current flowing through the first induction coil is in the opposite direction to the circulating current flowing through the second induction coil.

2. The induction heating system according to claim 1, in, The first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured such that the electrical connection at the second end of the first induction coil and the electrical connection at the first end of the second induction coil have the same polarity; and Wherein, the second end of the first induction coil is arranged adjacent to the first end of the second induction coil.

3. The induction heating system according to claim 1, in, The first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured such that the current flowing to the first induction coil at the second end is in parallel with the current flowing to the second induction coil at the first end; and Wherein, the second end of the first induction coil is arranged adjacent to the first end of the second induction coil.

4. The induction heating system according to claim 1, in, A circulating current flows through the first induction coil from the first end to the second end; The circulating current flows from the second end to the first end through the second induction coil; and Wherein, the second end of the first induction coil is arranged adjacent to the first end of the second induction coil.

5. The induction heating system according to claim 1, wherein, The conveying device, the first induction coil, and the second induction coil are configured and arranged such that the conveying device moves the metal workpiece sequentially through the first end of the first induction coil, the second end of the first induction coil, the first end of the second induction coil, and the second end of the second induction coil.

6. The induction heating system according to claim 1, in, The at least one capacitor bank is configured to generate an output voltage; and The at least one capacitor bank, the first induction coil, and the second induction coil are configured such that each of the first and second induction coils receives the output voltage from the at least one capacitor bank.

7. The induction heating system according to claim 1, wherein, The first induction coil and the second induction coil are configured to operate using a single implementation of the inverter.

8. The induction heating system according to claim 1, in, The first induction coil includes a first conductive coil and a first non-magnetic core; and The second induction coil includes a second conductor coil and a second non-magnetic core.

9. The induction heating system according to claim 8, in, The first conductor coil includes Litz wire; and The second conductor coil includes Litz wire.

10. The induction heating system according to claim 8, wherein, The first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured to reduce the current flowing through the first conductor coil and the second conductor coil.

11. The induction heating system according to claim 8, in, The first wire coil is wound around the first non-magnetic core; and The second wire coil is wound around the second non-magnetic core.

12. The induction heating system according to claim 8, in, The first non-magnetic core includes a cylindrical structure; and The second non-magnetic core includes a cylindrical structure.

13. The induction heating system according to claim 8, in, The first non-magnetic core is configured to accommodate the conveying device passing through it; and The second non-magnetic core is configured to accommodate the conveying device passing through it.

14. The induction heating system of claim 1, further comprising a housing configured to accommodate at least the first induction coil, the second induction coil, and the at least one capacitor bank.

15. The induction heating system of claim 1, further comprising a cooling system, said cooling system including at least one fan and at least one air guide. in, The at least air guide includes an internal airflow guiding structure.

16. The induction heating system according to claim 15, wherein, The internal airflow guiding structure includes a honeycomb airflow rectifier.

17. The induction heating system according to claim 15, wherein, The internal airflow guiding structure includes a screen airflow rectifier.

18. The induction heating system according to claim 14, wherein, The first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured to reduce heating of the housing.

19. The induction heating system according to claim 1, wherein, The first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured to increase curing efficiency.

20. The induction heating system according to claim 1, wherein, The first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured to increase the processing speed.

21. The induction heating system according to claim 1, wherein, The first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured such that the electromagnetic fields of the first induction coil and the second induction coil reduce the effective magnetic field.

22. The induction heating system according to claim 1, wherein, The metal workpiece includes metal components, metal structural components, container parts, containers, lids for containers, and / or lids for tubular containers.

23. The induction heating system according to claim 1, wherein, The conveying device is further configured to convey the metal workpiece to the induction heating system.

24. The induction heating system according to claim 1, wherein, The conveying device is further configured to convey the metal workpiece from the induction heating system.

25. An induction heating system configured to at least partially cure a coating material applied to the surface of a metal workpiece, the induction heating system comprising: A first induction coil, the first induction coil including a first end and a second end; The second induction coil includes a first end and a second end; At least one capacitor bank, the at least one capacitor bank being connected to the first induction coil and the second induction coil, and being configured in parallel with the first induction coil and the second induction coil; An inverter configured to provide drive current to the at least one capacitor bank, the first induction coil, and the second induction coil; as well as A conveying device configured to move the metal workpiece through the first induction coil and the second induction coil. The first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured such that the electrical connection at the second end of the first induction coil and the electrical connection at the first end of the second induction coil have the same polarity; and Wherein, the second end of the first induction coil is arranged adjacent to the first end of the second induction coil.

26. The induction heating system according to claim 25, in, The first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured such that the current flowing to the first induction coil at the second end is in parallel with the current flowing to the second induction coil at the first end; and Wherein, the second end of the first induction coil is arranged adjacent to the first end of the second induction coil.

27. The induction heating system according to claim 25, in, A circulating current flows through the first induction coil from the first end to the second end; The circulating current flows from the second end to the first end through the second induction coil; and Wherein, the second end of the first induction coil is arranged adjacent to the first end of the second induction coil.

28. The induction heating system according to claim 25, wherein, The conveying device, the first induction coil, and the second induction coil are configured and arranged such that the conveying device moves the metal workpiece sequentially through the first end of the first induction coil, the second end of the first induction coil, the first end of the second induction coil, and the second end of the second induction coil.

29. The induction heating system according to claim 25, in, The at least one capacitor bank is configured to generate an output voltage; and The at least one capacitor bank, the first induction coil, and the second induction coil are configured such that each of the first induction coil and the second induction coil receives the output voltage from the at least one capacitor bank.

30. The induction heating system according to claim 25, wherein, The first induction coil and the second induction coil are configured to operate using a single implementation of the inverter.

31. The induction heating system according to claim 25, in, The first induction coil includes a first conductive coil and a first non-magnetic core; and The second induction coil includes a second conductor coil and a second non-magnetic core.

32. The induction heating system according to claim 31, in, The first conductor coil includes Litz wire; and The second conductor coil includes Litz wire.

33. The induction heating system according to claim 31, wherein, The first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured to reduce the current flowing through the first conductor coil and the second conductor coil.

34. The induction heating system according to claim 31, in, The first wire coil is wound around the first non-magnetic core; and The second wire coil is wound around the second non-magnetic core.

35. The induction heating system according to claim 31, in, The first non-magnetic core includes a cylindrical structure; and The second non-magnetic core includes a cylindrical structure.

36. The induction heating system according to claim 31, in, The first non-magnetic core is configured to accommodate the conveying device passing through it; and The second non-magnetic core is configured to accommodate the conveying device passing through it.

37. The induction heating system of claim 25, further comprising a housing configured to accommodate at least the first induction coil, the second induction coil, and the at least one capacitor bank.

38. The induction heating system of claim 25, further comprising a cooling system, said cooling system including at least one fan and at least one air guide. in, The at least air guide includes an internal airflow guiding structure.

39. The induction heating system according to claim 38, wherein, The internal airflow guiding structure includes a honeycomb airflow rectifier.

40. The induction heating system according to claim 38, wherein, The internal airflow guiding structure includes a screen airflow rectifier.

41. The induction heating system according to claim 37, wherein, The first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured to reduce heating of the housing.

42. The induction heating system according to claim 25, wherein, The first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured to increase curing efficiency.

43. The induction heating system according to claim 25, wherein, The first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured to increase the processing speed.

44. The induction heating system according to claim 25, wherein, The first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured such that the electromagnetic fields of the first induction coil and the second induction coil reduce the effective magnetic field.

45. The induction heating system according to claim 25, wherein, The metal workpiece includes metal components, metal structural components, container parts, containers, lids for containers, and / or lids for tubular containers.

46. ​​The induction heating system according to claim 25, wherein, The conveying device is further configured to convey the metal workpiece to the induction heating system.

47. The induction heating system according to claim 25, wherein, The conveying device is further configured to convey the metal workpiece from the induction heating system.

48. An induction heating system configured to at least partially cure a coating material applied to the surface of a metal workpiece, the induction heating system comprising: A first induction coil, the first induction coil including a first end and a second end; The second induction coil includes a first end and a second end; At least one capacitor bank, the at least one capacitor bank being connected to the first induction coil and the second induction coil, and being configured in parallel with the first induction coil and the second induction coil; An inverter configured to provide drive current to the at least one capacitor bank, the first induction coil, and the second induction coil; as well as A conveying device configured to move the metal workpiece through the first induction coil and the second induction coil. The first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured such that the current flowing to the first induction coil at the second end is in parallel with the current flowing to the second induction coil at the first end; and Wherein, the second end of the first induction coil is arranged adjacent to the first end of the second induction coil.

49. The induction heating system according to claim 48, in, The first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured such that the electrical connection at the second end of the first induction coil and the electrical connection at the first end of the second induction coil have the same polarity; and Wherein, the second end of the first induction coil is arranged adjacent to the first end of the second induction coil.

50. The induction heating system according to claim 48, in, A circulating current flows through the first induction coil from the first end to the second end; The circulating current flows from the second end to the first end through the second induction coil; and Wherein, the second end of the first induction coil is arranged adjacent to the first end of the second induction coil.

51. The induction heating system according to claim 48, wherein, The conveying device, the first induction coil, and the second induction coil are configured and arranged such that the conveying device moves the metal workpiece sequentially through the first end of the first induction coil, the second end of the first induction coil, the first end of the second induction coil, and the second end of the second induction coil.

52. The induction heating system according to claim 48, in, The at least one capacitor bank is configured to generate an output voltage; and The at least one capacitor bank, the first induction coil, and the second induction coil are configured such that each of the first induction coil and the second induction coil receives the output voltage from the at least one capacitor bank.

53. The induction heating system according to claim 48, wherein, The first induction coil and the second induction coil are configured to operate using a single implementation of the inverter.

54. The induction heating system according to claim 48, in, The first induction coil includes a first conductive coil and a first non-magnetic core; and The second induction coil includes a second conductor coil and a second non-magnetic core.

55. The induction heating system according to claim 54, in, The first conductor coil includes Litz wire; and The second conductor coil includes Litz wire.

56. The induction heating system according to claim 54, wherein, The first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured to reduce the current flowing through the first conductor coil and the second conductor coil.

57. The induction heating system according to claim 54, in, The first wire coil is wound around the first non-magnetic core; and The second wire coil is wound around the second non-magnetic core.

58. The induction heating system according to claim 54, in, The first non-magnetic core includes a cylindrical structure; and The second non-magnetic core includes a cylindrical structure.

59. The induction heating system according to claim 54, in, The first non-magnetic core is configured to accommodate the conveying device passing through it; and The second non-magnetic core is configured to accommodate the conveying device passing through it.

60. The induction heating system of claim 48, further comprising a housing configured to accommodate at least the first induction coil, the second induction coil, and the at least one capacitor bank.

61. The induction heating system of claim 48, further comprising a cooling system, said cooling system including at least one fan and at least one air guide. in, The at least air guide includes an internal airflow guiding structure.

62. The induction heating system according to claim 61, wherein, The internal airflow guiding structure includes a honeycomb airflow rectifier.

63. The induction heating system according to claim 61, wherein, The internal airflow guiding structure includes a screen airflow rectifier.

64. The induction heating system according to claim 60, wherein, The first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured to reduce heating of the housing.

65. The induction heating system according to claim 48, wherein, The first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured to increase curing efficiency.

66. The induction heating system according to claim 48, wherein, The first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured to increase the processing speed.

67. The induction heating system according to claim 48, wherein, The first induction coil, the second induction coil, and the at least one capacitor bank are connected and configured such that the electromagnetic fields of the first induction coil and the second induction coil reduce the effective magnetic field.

68. The induction heating system according to claim 48, wherein, The metal workpiece includes metal components, metal structural components, container parts, containers, lids for containers, and / or lids for tubular containers.

69. The induction heating system according to claim 48, wherein, The conveying device is further configured to convey the metal workpiece to the induction heating system.

70. The induction heating system according to claim 48, wherein, The conveying device is further configured to convey the metal workpiece from the induction heating system.

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