Wall-mounted microwave oven and method for controlling hood moto

Details Wall-mounted microwave oven and method for controlling hood moto Wall-mounted microwave oven and method for controlling hood moto

1999-08-10

2000-08-15

Leung, Philip H.

Electric heating

Microwave heating

With control system

219716, 219757, 126299R, H05B 668

Patent

active

061040169

ABSTRACT:
A wall-mounted microwave oven and a control method for controlling a hood motor are provided. Here, the wall-mounted microwave oven having a main body forming a cavity for accommodating foods to cook, a casing enclosing the main body and forming a hood duct having an inlet located on a bottom area and an outlet located on an upper area, a hood fan installed in the hood duct, and a hood motor driving the hood fan, includes an inverter part for controlling the frequency of a supply current supplied from an external electrical power source to the hood motor, and a microcomputer for controlling the speed of the hood motor by transmitting a control signal to the inverter part, based on an external control signal. Thus, the size of the hood motor can be reduced, thus reducing a cost. Also, since the speed of the hood fan can be varied, ventilation and exhaust are performed within an optimal time to thereby seek conveniences of users.

REFERENCES:
patent: 4724291 (1988-02-01), Inumada
patent: 5268547 (1993-12-01), Bessyo et al.
patent: 5986245 (1999-11-01), Kang

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