Domestic appliance and heating structure for a domestic appliance
AssigneeKoninklijke Philips Electronics N.V.
InventorsMokankumar Valiyambath Krishnan, Kai Kwok, Gerard Cnossen
Life of this patent
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Abstract
An electric heating structure of a domestic appliance includes at least one first electric heating track (23) having a positive temperature coefficient and at least one additional electric heating track (27, 28). A control structure (22, 25, 29) is provided for controlling electric power supply to said first and additional heating tracks (23, 27, 28) and is sensitive to the heating of said at least one first heating track (23) for switching on said at least one additional electric heating track (27, 28) in parallel and in addition to said at least one first heating track (23) when said at least one first heating track (23) has been heated to at least a predetermined extent.
Claims11
An electric heating structure for a domestic appliance including:
- at least one first electric heating track (23) having a positive temperature coefficient;
- at least one additional electric heating track (27, 28);
- a control structure (22, 25, 29) for controlling electric power supply to said first and additional heating tracks (23, 27, 28), sensitive to the heating of said at least one first heating track (23) and for switching-on said at least one additional electric heating track (27, 28) in parallel and in addition to said at least one first heating track (23) when said at least one first heating track (23) has been heated to at least a predetermined extent.
A domestic appliance for heating an object or a medium, such as a pressing iron, a frying pan, a water kettle, a rice cooker, a grill, a hair dryer including at least one heating structure according to any one of the preceding claims arranged for temperature exchange with the medium or object to be heated.
Dependencies are inferred from the claim text.