Abstract: A heating cooker includes a body casing, a heating chamber, a magnetron that supplies microwaves into the heating chamber, a cooling fan that delivers cooling air flow to the magnetron, an air discharge duct that is for discharging discharge air from inside of the heating chamber to outside, a first guiding channel that guides into the heating chamber a portion of the cooling air flow from the cooling fan which has flowed out to a downstream side after cooling the magnetron, and a second guiding channel that guides toward the air discharge duct another portion of the cooling air flow from the cooling fan which has flowed out to the downstream side after cooling the magnetron.

Abstract: A heating cooker includes a body casing, a heating chamber, a magnetron that supplies microwaves into the heating chamber, a cooling fan that delivers cooling air flow to the magnetron, an air discharge duct that is for discharging discharge air from inside of the heating chamber to outside, a first guiding channel that guides into the heating chamber a portion of the cooling air flow from the cooling fan which has flowed out to a downstream side after cooling the magnetron, and a second guiding channel that guides toward the air discharge duct another portion of the cooling air flow from the cooling fan which has flowed out to the downstream side after cooling the magnetron.

Abstract: A heating cooker includes a body casing, a heating chamber, a magnetron that supplies microwaves into the heating chamber, a cooling fan that delivers cooling air flow to the magnetron, an air discharge duct that is for discharging discharge air from inside of the heating chamber to outside, a first guiding channel that guides into the heating chamber a portion of the cooling air flow from the cooling fan which has flowed out to a downstream side after cooling the magnetron, and a second guiding channel that guides toward the air discharge duct another portion of the cooling air flow from the cooling fan which has flowed out to the downstream side after cooling the magnetron.

Abstract: A microwave fryer includes a magnetron in the machine body; an oil vessel for storing oil to be heated by radiation of microwaves from the magnetron which is detachably disposed in a heating chamber of the machine body; and a detachable frying container, provided over the oil vessel in the heating chamber, having a screen portion which allows microwaves to pass therethrough when the container is immersed in the oil and which prohibits almost all microwaves from passing therethrough when the container is in the air. The frying container has a top opening which is sealed against microwaves. The apparatus further includes a lifting mechanism for moving one of the frying container and the oil vessel relative to the other, and a temperature detecting device for detecting the temperature of the cooking oil. In this arrangement, the oil held in the oil vessel detachably disposed in the heating chamber is heated by radiation of microwaves.