Heating element, especially a radiant heating element for heating glass-ceramic plates

摘要

A radiant heating element (11) for heating a glass-ceramic cooking plate has two heating zones (16, 17) which are arranged concentrically with respect to one another. The heating resistance (13) in the inner heating zone (16), which is continuously switched on in operation, has a relatively high power when it alone is switched on. The power in the central heating zone (16) is reduced by means of a bias heating resistor (15) in the outer heating zone (17) when the heating resistance (14) of the outer heating zone (17) is connected, so that a uniform power distribution over the entire surface is produced. <IMAGE>