| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a range hood which sets a proper ventilation air flow volume according to a temperature of a cooked object without depending on a usage environment temperature, and does not perform excessive ventilation or insufficient ventilation. <P>SOLUTION: A microcomputer 8 calculates a temperature of a cooked object from the fact that an radiation energy Er radiated from a detection area calculated from a temperature in a detection area which a thermo-electromotive force type sensor 6 detects and a plane area of the detection area is equal to the sum Er of the radiation energy calculated from a plane area of a non-heated area in the detection area and an ambient temperature which a thermistor 10 detects, and the radiation energy calculated from the plane area of the cooked object arranged in the heated area in the detection area and the temperature of the cooked object. Then, the microcomputer sets a proper ventilation air flow volume according to the calculated temperature of the cooked object and can constantly perform efficient ventilation by executing an automatic operation without depending on the ambient temperature. <P>COPYRIGHT: (C)2013,JPO&INPIT |
