Microwave oven with circuit cooling system and magnetic shield s

Details Microwave oven with circuit cooling system and magnetic shield s Microwave oven with circuit cooling system and magnetic shield s

1989-02-13

1989-09-19

Leung, Philip H.

Electric heating

Metal heating

Of cylinders

219 1055B, 361384, 361424, 336 84C, H05B 664

Patent

active

048683620

ABSTRACT:
A microwave oven comprises a cooling system and a magnetic shield system applied to a plurality of circuit elements. The cooling system comprises a compartment through which air can pass. The compartment is formed by at least one printed circuit board carrying a plurality of circuit elements and a supporting member for supporting the printed circuit board. The circuit elements are cooled by the flow of the air. In addition, the circuit elements are magnetically shielded from a magnetic field generation device such as a magnetic card reader/writer and a high voltage transformer by a shield member. It is possible that the circuit elements are protected from very large quantities of heat emitted by the high voltage transformer. The magnetic card reader/writer may be provided for reading/cooking program information from a magnetic card and writing the same on it. The microwave oven should be controlled according to the cooking program information for cooking purposes.

REFERENCES:
patent: 2512138 (1950-06-01), Butt
patent: 2682018 (1954-06-01), Phillips
patent: 3365621 (1968-01-01), Von Fange et al.
patent: 3569656 (1971-03-01), White et al.
patent: 3912849 (1975-10-01), Thomas
patent: 4035794 (1977-07-01), Norton et al.
patent: 4336569 (1982-06-01), Tsuda et al.
patent: 4339646 (1982-07-01), Doi et al.
patent: 4812617 (1989-03-01), Takeuji et al.
Ad. Brochure, Toshiba's "Brainwave", Feb. 1979, four pages.

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