COMMERCIAL MICROWAVE OVEN Russian patent published in 2015 - IPC H05B6/64 

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to microwave equipment, to electric heating appliances for heat treatment of products, etc. A microwave oven has a two-unit design functionally combining ellipsoidal heating chamber (1, 3) and an electronic unit, in the housing (6) of which there installed are two independent generators of magnetron type (5, 9) and a control device of an oven operating mode. Excitation of an electromagnetic field in the chamber is performed by means of two short-circuited single-wire lines, the lengths of which differ from each other by λ/4, with that, along those lines there shaped are two standing waves shifted as to phase by π/2 and partially overlapping one another in the space, by means of the total field of which the treated product is uniformly heated.

EFFECT: due to possible unification of structures of elements and assemblies of an excitation system of an electromagnetic field and implementation of distribution of microwave heating sources, the invention provides high uniformity and efficiency.

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