Patent ID: 8729441

Claim:
A high-frequency heating apparatus, comprising: a heating chamber that houses an object to be heated; a rotating turntable provided on a bottom surface of the heating chamber, on which the object to be heated is rotatably mounted; a high-frequency heating section that heats the object to be heated which is housed in the heating chamber; a case positioned above a section of an upper surface of the heating chamber, the case including a top surface and side surfaces wherein the section of the upper surface of the heating chamber defines at least one air intake hole and at least one air discharge hole for circulating hot air in the heating chamber, wherein the top surface, side surfaces, and the section of the upper surface of the heating chamber together define an enclosed space whereby air enters the enclosed space via the at least one air intake hole and exits the enclosed space via the at least one air discharge hole; a first heater disposed within the case; a fan disposed within the case that draws air into the case via the at least one air intake hole and discharges substantially all the air drawn into the case via the at least one air discharge hole, wherein the air in the case is heated by the first heater; and a second heater for heating the object to be heated disposed above the section of the upper surface of the heating chamber and outside of the enclosed space.