H - Electricity – 05 – B
Patent
H - Electricity
05
B
326/13.6
H05B 6/64 (2006.01)
Patent
CA 1249638
ABSTRACT OF THE DISCLOSURE 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 r 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.
503904
Matsushima Kazufumi
Sujaku Takamichi
Fetherstonhaugh & Co.
Kabushiki Kaisha Toshiba
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