Patent ID: 7615727

Claim:
A device for heating up meals, in which at least one functional tray is arranged within a housing which is closed by a door and has a shielding effect for electromagnetic waves, where functional trays ( 2 ) each contain at least one induction coil ( 4 ) for producing an alternating electromagnetic field within which heating is achieved, wherein an electrically conducting element ( 3 ) is located at least along an end face of at least one of the functional trays ( 2 ), which is oriented adjacent the door opening in the housing ( 1 ), and the at least one electrically conducting element ( 3 ) is respectively connected to at least one of a local potential, a housing potential and a ground potential and one of the local potential, the housing potential and the ground potential being coupled to the electrically conductive element ( 3 ), when the at least one functional tray ( 2 ) is accommodated within the housing ( 1 ) and the door is in its closed position, so that the door forms a shield for electromagnetic waves and minimizes passage of otherwise errant electromagnetic waves through the door.