| 摘要 |
PURPOSE:To improve the cooling effect by a method wherein a right and left partitioning plate for dividing an exhaust port forwardly and rearwardly is provided around a combustion chamber and a front and rear partitioning plate is provided on the upper surface of a heating chamber so as to form the letter T with the right and left partitioning plate so that air from a cooling fan is discharged after it passes by the side surface of the heating chamber. CONSTITUTION:Air sucked by the cooling fan 5 cools a magnetron 4 and flows over the upper surface of the heating chamber 3. Then a part of the air is discharged from an exhaust port 1b and a part of the air becomes combustion air by being sucked from a sucking port of a burner 7. The combustion air enters the heating chamber 3 through the combustion chamber 15, a circulating fan 16 and a duct, returns to the combustion chamber 15 through punched holes 19a of the partitioning plate 9 and is discharged from the exhaust port 1b through an outlet port 20. Further, a part of the cooling air 5 flows upward from the lower surface of the heating chamber 3 toward the opposite side surface 11 along the partitioning plate 9 and is discharged from the exhaust port. An exhaust port 1c is for discharging cooling air from the circulating fan 16. Thus it is made possible to prevent interference of the air flow and to improve the cooling effect of the cooking range. |
