A heating device includes a housing, a primary induction coil, a controller circuit, and a secondary induction coil. The housing is configured to retain a camera lens. The primary induction coil is positioned proximate the housing and configured to generate a magnetic field in response to receiving electrical power from a power supply. The controller circuit is in electrical contact with the primary induction coil and is configured to control the electrical power delivered to the primary induction coil. The secondary induction coil overlays the primary induction coil and is configured to receive the magnetic field from the primary induction coil and generate heat. The secondary induction coil heats the camera lens when the primary induction coil receives the electrical power.

A spring induction heater assembly is shown and described. The device has a quench tank incorporated into the design. A motor and drive mechanism provide rotation of a spring about one axis from a first position used for loading, to a second position for heat treatment with an induction coil and a third position where the spring is released dropped into a quench tank. Another rotational system is operational to rotate the spring on a spindle in the second or horizontal position while the spring is located between at least two legs of an induction coil. The induction coil provides even heating to the spring coils thereby providing desired changes to the material properties. The quench tank can have an automated system to remove the springs from the quench tank.

A spring induction heater assembly is shown and described. The device has a quench tank incorporated into the design. A motor and drive mechanism provide rotation of a spring about one axis from a first position used for loading, to a second position for heat treatment with an induction coil and a third position where the spring is released dropped into a quench tank. Another rotational system is operational to rotate the spring on a spindle in the second or horizontal position while the spring is located between at least two legs of an induction coil. The induction coil provides even heating to the spring coils thereby providing desired changes to the material properties. The quench tank can have an automated system to remove the springs from the quench tank.

An induction heater device and a method for controlling an induction heating device are provided. The method may include determining a first target frequency of a first working coil corresponding to the drive command for the first working coil, determining a second target frequency of a second working coil corresponding to the drive command for the second working coil, and determining a final drive frequency of the first working coil and a final drive frequency of the second working coil based on the first target frequency and the second target frequency, respectively.

An induction heater device and a method for controlling an induction heating device are provided. The method may include determining a first target frequency of a first working coil corresponding to the drive command for the first working coil, determining a second target frequency of a second working coil corresponding to the drive command for the second working coil, and determining a final drive frequency of the first working coil and a final drive frequency of the second working coil based on the first target frequency and the second target frequency, respectively.

A cooking appliance apparatus includes at least one fan unit having at least one fan wheel which is mounted for rotation about a rotation axis. A heating element is provided to heat the fan wheel in at least one operating state, with the heating element being configured as an induction heating element.

A cooking appliance apparatus includes at least one fan unit having at least one fan wheel which is mounted for rotation about a rotation axis. A heating element is provided to heat the fan wheel in at least one operating state, with the heating element being configured as an induction heating element.

An inductive heating element for an aerosol-generating system is provided, the inductive heating element including: a cavity configured to receive an aerosol-forming substrate to be heated by the inductive heating element; a first susceptor; a second susceptor; and an intermediate element disposed between the first susceptor and the second susceptor, the intermediate element being gas permeable, the intermediate element including at least one of: a thermally insulative material configured to thermally insulate the first susceptor from the second susceptor, and an electrically insulative material configured to electrically insulate the first susceptor from the second susceptor. An inductive heating arrangement and an aerosol-generating device are also provided.

An inductive heating element for an aerosol-generating system is provided, the inductive heating element including: a cavity configured to receive an aerosol-forming substrate to be heated by the inductive heating element; a first susceptor; a second susceptor; and an intermediate element disposed between the first susceptor and the second susceptor, the intermediate element being gas permeable, the intermediate element including at least one of: a thermally insulative material configured to thermally insulate the first susceptor from the second susceptor, and an electrically insulative material configured to electrically insulate the first susceptor from the second susceptor. An inductive heating arrangement and an aerosol-generating device are also provided.

An inductive heating element for an aerosol-generating system is provided, the inductive heating element including: a first susceptor, the first susceptor being a tubular susceptor defining an inner cavity configured to receive an aerosol-forming substrate; a second susceptor, the second susceptor being a tubular susceptor defining an inner cavity configured to receive aerosol-forming substrate; and a separation between the first susceptor and the second susceptor, the separation thermally insulating the first susceptor from the second susceptor. An inductive heating arrangement, an aerosol-generating device, and an aerosol-generating system are also provided.