External control unit for induction hearth, has thermochromic pigments integrated at viewable surface of cookware, where color of pigments changes with change in temperature, so that color of viewable surface of cookware is changed

摘要

The control unit (1.2) has a wireless transmitter for transmitting control signals from various positions over a cooking surface (3) to an induction coil (5) lying under the cooking surface for controlling cook fields, where the power supply for the control unit is realized over pot heat, and induction energy or energy storage unit. Thermochromic pigments integrated at a viewable surface of a cookware for heat development at the cookware, where color of the pigments changes with change in temperature, so that the color of the viewable surface of the cookware is changed.