Patent ID: 7096599
Filing Date: 2006-08-29
Classification: D06F,F26B

Abstract:
1. A household appliance ( 1 ) including an enclosure ( 2 ) into which objects to be heated are placed, a magnetron ( 4 ) for generating microwaves, a waveguide ( 3 ) for feeding the generated microwave into the enclosure ( 2 ), an arc detector ( 5 ) for detecting the arcing within the enclosure ( 2 ) and a control unit ( 6 ), wherein the arc detector ( 5 ) comprises an antenna ( 7 ) to capture the signal representing the field inside the wavegnide ( 3 ), a filtering means ( 9 ) to filter the noise on the antenna ( 7 ), a microwave diode ( 8 ) to rectify the signal and a casing ( 11 ), for protecting all the components of the arc detector ( 5 ) from the noise and to avoid any microwave leakage and wherein the wavegnide ( 3 ) and the arc detector ( 5 ) comprise slots ( 10 ) and the arc detector ( 5 ) is coupled to the wavegnide ( 3 ) in such a way that slots ( 10 ) coincide and get the signal into the arc detector ( 5 ) from the waveguide.