MICROWAVE HEATING DEVICE AND CONTROL METHOD THEREFOR

摘要

A microwave heating device and control method therefor, the microwave heating device comprising: a heating chamber (1), a microwave source (2) used to generate microwaves, a controller (6), a plurality of waveguide ports (3) located on the heating chamber (1), a plurality of radio frequency switches (4) and a plurality of radio frequency output ports (5) corresponding to the plurality of radio frequency switches (4). The plurality of radio frequency output ports (5) are respectively and correspondingly connected to the plurality of waveguide ports (3), and the plurality of radio frequency switches (4) are connected to the microwave source (2). The controller (6) controls the plurality of radio frequency switches (4) so that in each time period at least one of the radio frequency output ports (5) within the plurality of radio frequency output ports (5) outputs microwaves. The plurality of waveguide ports (3) in the present microwave heating device share a microwave source (2), and controlling is performed by the plurality of radio frequency switches (4). The present device has a simple structure, and outputting microwaves by switching different radio frequency output ports (5) increases the heating uniformity of the microwave heating device.