| 摘要 |
PROBLEM TO BE SOLVED: To provide a heating cooker preventing a situation that a cooling fan is prevented from rotation and locked due to a low driving force in low value of revolution when foreign matters adhere to the cooling fan, or that the temperature of a heating device exceeds an upper limit of the operating temperature due to the peripheral temperature becoming high by continuous heating and reduction in the number of revolutions of the cooling fan. SOLUTION: The heating cooker comprises a speed control device changing the number of rotations of a cooling fan after making it rotate at a prescribed maximum rotation rate when starting the heating, and constructed so as to prevent the fan lock by making the cooling fan rotate at prescribed maximum rotation rate, and to prevent an erroneous operation or breakage of electronic parts by lowering the temperature around the heating device. COPYRIGHT: (C)2004,JPO |
