Microwave oven with safety system

摘要

A safety system for a microwave oven includes a heater temperature sensor (15; 15') for measuring a surface temperature of the heater (13); a door switch (70; 70') for sensing the opening and closing of the door (20); a control unit (90) receiving a signal output from each of the door switch (70; 70') and the heater temperature sensor (15; 15'), and determining if the surface temperature of the heater (15; 15') is higher than a preset reference temperature and the door switch (70; 70') is closed; and an alarm device (50, 50-1, 50-2) giving a warning to a user if the control unit (90) determines that the surface temperature of the heater (13) is higher than a preset reference temperature and the door switch (70;70') is closed as the door (20) is opened. <IMAGE>