JPS6457589A - Composite cooking utensil - Google Patents

Abstract

PURPOSE:To cool a magnetron with the first cooling wind path, cool a heating coil with the second cooling wind path giving no thermal effect to a control substrate, and cool electron components of both a microwave oven and an electromagnetic cooking utensil with one cooling fan by providing a wind control plate of the air flowing to the control substrate. CONSTITUTION:In the dielectric heating, the outside air is taken into a machine room 3 through the first intake port 26. Electronic components of a printed circuit board 22 installed on the front side of the machine room 3 are cooled by the cooling wind. The outside air is also taken into the machine room 3 through the second intake port 32 via a space 1a and a takeout port 33 at this time to cool a magnetron 4, a high-voltage capacitor, and a high-voltage transformer. In the induction heating, a heating coil 7 is cooled by the cooling wind flowing through a space 1a between the upper face of a heating room 2 and the upper wall of a main body 1, the hot wind is restricted by a control plate 35 not to proceed to the printed circuit board 22 side, and the high-voltage capacitor and the high-voltage transformer are subsequently cooled by the cooling wind converged with the cooling wind from the first intake port 26. Both the magnetron 4 and the heating coil 7 can be cooled with one cooling fan 29.