Electric heating – Microwave heating – Enclosed cavity structure
Patent
1997-06-04
1998-12-08
Leung, Philip H.
Electric heating
Microwave heating
Enclosed cavity structure
126 21A, H05B 664
Patent
active
058473777
ABSTRACT:
A microwave oven incorporating therein an air cooling system comprises an outer casing containing a cooking chamber and a compartment. The compartment is provided with an air intake opening. A magnetron and a high voltage transformer are positioned at upper and lower sides within the compartment, respectively. A cooling fan is disposed at a position near the high voltage transformer and forces cooling air around the microwave oven to enter the compartment through the air intake opening and to leave the compartment along a plurality of airflow routes. A screen plate is disposed between the high voltage transformer and the cooling fan and directs a part of the cooling air from the cooling fan to the magnetron so that the magnetron is directly cooled by the cooling air.
REFERENCES:
patent: 4184945 (1980-01-01), Morgan et al.
patent: 4812617 (1989-03-01), Takeuji et al.
patent: 4966524 (1990-10-01), Kodama et al.
Choi Mun-Young
Nam Won-Ki
Yang Kyung-Hoi
Yi Byeong-Woo
Yoon Myeong-Ho
Daewoo Electronics Co. Ltd.
Leung Philip H.
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