MC4011L / MAG 690
Technische Documentatie
4 - PRINCIPLE OF THE MOBI MICROWAVE OVEN
4.1. - Constitution
The MOBI microwave oven comprises a microwave transmitter called magnetron. The emitted waves are
confined in a recess called cavity. This cavity is closed by a door coupled to a safety device to avoid the
emission of waves outside the oven. A wave distributor and a turntable contribute to a better distribution of
the waves on food. It contains an electric feeding system and command elements. The microwaves are
absorbed by food. But while penetrating, they gradually lose their power. Beyond two to three centimeters,
cooking is done by conduction. The microwave oven and the food do not accumulate electromagnetic
energy. When the magnetron is no longer electrically powered, the emission of stops.
4.2. - Diffusion and distribution of the waves in the cavity
The waves are spread in the wave guide. As soon as they leave the magnetron, they are splintered by an
oval niche. The waves will go down the guide, then they again will be further splintered by the second
niche. The flow of waves will penetrate the cavity through two entries, high and low, to ensure a better
distribution for cooking.
The two entries are protected by "MICA" plates in order to prevent the guide from being spattered during
cooking.
A diamond embossing, placed in the cavity and located opposite the two wave guide outlets, splinters the
waves once again for maximum waves distribution.
The turntable, revolving food in the flow of waves, improves the distribution even more, thus obtaining a
homogeneous cooking.
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