The present disclosure is intended to supply sufficient electric power to an induction heating mechanism even with a small-diameter roller, and includes a roller body having a hollow cylindrical shape, a drive shaft provided at each of both ends of the roller body and rotatably supported, an induction heating mechanism that is provided inside the roller body and allows the roller body to inductively generate heat, and a support shaft that extends from both ends of the induction heating mechanism and supports the induction heating mechanism, in which the support shaft is rotatably supported on an inner peripheral surface at both ends of the roller body via a bearing.

The invention is based on an induction heating unit adjustment device (44a; 44b) for an adjustment of at least one field shape of an alternating field of an induction coil (10a; 10b) of an induction heating unit (12a; 12b), with a field forming unit (14a; 14b) which is configured for a, preferably variable, shaping and/or shielding of the alternating field generated by the induction coil (10a; 10b), comprising at least one field former element (16a; 16b) and a field former receiving unit (18a; 18b), which is configured to hold the field former element (16a; 16b) in and/or on the induction heating unit (12a; 12b).

It is proposed that the induction heating unit adjustment device (44a; 44b) comprises an electronic sensor unit (20a; 20b), which is configured for sensing a type and/or a position of the field former element (16a; 16b) that is held in and/or on the induction heating unit (12a; 12b) by the field former receiving unit (18a; 18b), and for outputting an electronic measurement signal.

The invention is based on an induction heating unit adjustment device (44a; 44b) for an adjustment of at least one field shape of an alternating field of an induction coil (10a; 10b) of an induction heating unit (12a; 12b), with a field forming unit (14a; 14b) which is configured for a, preferably variable, shaping and/or shielding of the alternating field generated by the induction coil (10a; 10b), comprising at least one field former element (16a; 16b) and a field former receiving unit (18a; 18b), which is configured to hold the field former element (16a; 16b) in and/or on the induction heating unit (12a; 12b).

It is proposed that the induction heating unit adjustment device (44a; 44b) comprises an electronic sensor unit (20a; 20b), which is configured for sensing a type and/or a position of the field former element (16a; 16b) that is held in and/or on the induction heating unit (12a; 12b) by the field former receiving unit (18a; 18b), and for outputting an electronic measurement signal.

A battery pack charger configured to heat a power tool battery pack, the battery pack charger comprising a housing, an adapter portion integrated with the housing of the battery pack charger, the adapter portion configured to mechanically and electrically connect to the power tool battery pack, and an inductive heater including a coil portion, the coil portion including a coil housing and one or more inductive coil windings, the inductive heater configured to generate an electromagnetic field to heat the power tool battery pack.

A method and system are provided for using induction heating to shape a work piece panel into a preselected shape. The method includes positioning a work piece panel near or in abutment with at least a first induction coil. Alternating current (AC) having a preselected amplitude and frequency can be passed through at least the first induction coil while the work piece panel is subjected to at least one preselected shaping condition. An alternating electromagnetic field produced by the AC current, can cause eddy current in the work piece panel that can heat it to a preselected temperature for a preselected period of time while subjected to the preselected shaping condition, thereby causing the work piece panel to attain the preselected shape. The alternating electromagnetic field can also create a repelling electromagnetic force between the coil and the work piece panel, which could be a shaping condition.

Inductive heating systems and method of controlling the same to reduce biological carryover are disclosed herein. An example system includes an induction heater including a tank circuit, the tank circuit including a work coil and a sense coil. The sense coil is to detect a magnetic field generated by the work coil and to output signals in response to the detection. The example system includes a controller to cause the tank circuit to oscillate at a resonant frequency in response to the signals and a power drive unit in communication with the controller and the induction heater. The power drive unit is to adjust power provided to the induction heater in response to the controller driving the tank circuit to oscillate at the resonant frequency.

Inductive heating systems and method of controlling the same to reduce biological carryover are disclosed herein. An example system includes an induction heater including a tank circuit, the tank circuit including a work coil and a sense coil. The sense coil is to detect a magnetic field generated by the work coil and to output signals in response to the detection. The example system includes a controller to cause the tank circuit to oscillate at a resonant frequency in response to the signals and a power drive unit in communication with the controller and the induction heater. The power drive unit is to adjust power provided to the induction heater in response to the controller driving the tank circuit to oscillate at the resonant frequency.

A composite material forming device forms a composite material including a resin and reinforced fibers having electrical conductivity. The composite material forming device includes: a conduction jig having electrical conductivity, the conduction jig being to be placed on a surface of the composite material so as to make a bridge between both end portions of the reinforced fibers in a fiber direction; and an electric current generating unit that generates an electric current in the conduction jig. The conduction jig placed on the surface of the composite material and the reinforced fibers form a closed loop through which the electric current flows so that the closed loop intersects the surface of the composite material.

A composite material forming device forms a composite material including a resin and reinforced fibers having electrical conductivity. The composite material forming device includes: a conduction jig having electrical conductivity, the conduction jig being to be placed on a surface of the composite material so as to make a bridge between both end portions of the reinforced fibers in a fiber direction; and an electric current generating unit that generates an electric current in the conduction jig. The conduction jig placed on the surface of the composite material and the reinforced fibers form a closed loop through which the electric current flows so that the closed loop intersects the surface of the composite material.

The invention relates to a method for monitoring the temperature of the sleeve part of a tool holder, which sleeve part is inserted into the induction coil of a contraction device, wherein the instantaneous inductance of the induction coil is measured during the inductive heating and the current supply to the induction coil is influenced if the instantaneous inductance approaches, reaches, or exceeds a specified value.