Microwave oven with improved cooling arrangement

Details Microwave oven with improved cooling arrangement Microwave oven with improved cooling arrangement

1986-03-12

1987-04-28

Leung, Philip H.

Electric heating

Metal heating

Of cylinders

219 1055B, 361384, H05B 664

Patent

active

046616691

ABSTRACT:
A microwave oven is provided with a machine chamber underside of a heating chamber, and a magnetron and a high-voltage transformer provided in the machine chamber are cooled by a pair of cooling fans also disposed in the machine chamber. One of the cooling fans driven directly by a fan motor cools the transformer and the other cooling fan cools the magnetron driven by the fan motor through transmission means, such as a belt. A frame-shaped member is provided in the machine chamber for defining the height of the chamber and for rigidifying the structure thereof, so that the outer diameters of the cooling fans can be effectively selected so as to reduce noise and vibration caused in the machine chamber.

REFERENCES:
patent: 4028519 (1977-06-01), De Weese et al.
patent: 4184945 (1980-01-01), Morgan et al.
patent: 4410779 (1983-10-01), Weiss
patent: 4549054 (1985-10-01), Aoyama

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