| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a microwave heating device in which a microwave supply structure provided on an upper side of a heating chamber is reduced in size and life of a magnetron is prolonged by suppressing temperature rise of the magnetron due to heat from the heating chamber. <P>SOLUTION: In the microwave heating device, a waveguide 21 for transmitting microwaves from a magnetron 16 includes a horizontal part 42 and a vertical part 43 which are bent in right angle, the magnetron 16 is horizontally connected to the vertical part 43, and a power supply port is connected to the horizontal part 42 so that the microwaves are transmitted to a heating chamber 11, the power supply port opening at an upper end in a power supply chamber 24 formed to be projected from a ceiling plane of the heating chamber 11. Since the waveguide 21 and the magnetron 16 are spaced from the heating chamber 11, heat transmitted to the magnetron 16 is reduced. Accordingly, temperature rise of the magnetron 16 can be prevented. <P>COPYRIGHT: (C)2013,JPO&INPIT |
