INDUCTION HEATING DEVICE Russian patent published in 2021 - IPC H05B6/02 H02M5/44 

FIELD: electrical engineering.

SUBSTANCE: invention relates to the field of electrical engineering, in particular to means of induction heating of metal parts. The technical result described below is achieved by the fact that in an induction heating device containing N2 inductors connected to a power source and into the cavity of which the part to be heated is inserted, N separate power sources are introduced (SPS). The supply inputs of the nth inductor, where n=1, 2…N, are connected to the supply inputs of the nth SPS, which are connected to the external power supply network and are the supply inputs of the nth SPS rectifier. The supply outputs of the rectifier are connected to the supply inputs of the n-th inverter. The power outputs of the inverter are connected to the control inputs of the inverter noise-immune detuning regulator (INDR). The control outputs of the INDR via the interference channel of the own inverter are connected to the corresponding adjustment inputs via the interference channel of the inverter. The contacts for the INDR control of the SPS interference channel of the magnetically coupled inductors are the n-th SPS outputs, which are connected to the corresponding outputs of all the SPSes. The INDR outputs through the compensator are the SPS outputs.

EFFECT: reduced energy consumption and increased accuracy of matching the temperature profile being implemented.

2 cl, 8 dwg