Patent ID: 7543984

Claim:
A temperature detection device for a heating device of a cooking appliance with a power controller or power regulator, the temperature detection device having a sensor with a first part and a second part wherein each part has a different thermal expansion behaviour for temperature detection on the heating device, wherein as a result of the different thermal expansion behaviour on the first part and second parts, the sensor produces a relative movement for performing a switching movement along a switching path on the temperature detection device, the switching movement having a first switching point and a second switching point at a first location and a second location along the switching path, wherein switches or electrical contacts are associated with the first location and the second location provided for operation by the sensor on reaching either the first switching point or second switching point, wherein the first switching point is at a temperature of at least 500 C and the second switching point is at a temperature of less than 100 C, the switches or electrical contacts bringing about the switching of the power of the heating device at both the first switching point and second switching point.