Microwave oven with at least one wave choke system

摘要

The present invention relates to a microwave oven with at least one wave choke system. A front frame (12) encloses a front portion of a cavity wall (24) of an oven cavity (10) along a circumferential direction. An oven door (14) is provided to cover front sides of the oven cavity (10) and front sides of the cavity wall (24) completely and the front frame (12) at least partially in a closed state of said oven door (14). A first gap (16) is formed between the inner side of the oven door (14) on the one hand and front sides both of the front frame (12) and the cavity wall (24) on the other hand. A second gap (18) is formed between the front portions of the front frame (12) and the cavity wall (24). The cross-section of the second gap (18) extends perpendicularly to the cross-section of the first gap (16). A wave choke system is arranged within the second gap (18). The wave choke system comprises a plurality of choke members (26) and a counter part (28). There is no direct electric contact between the choke members (26) on the one hand and the counter part (28) on the other hand. Further, the present invention relates to a corresponding wave choke system for a microwave oven.

主权项

1. A microwave oven with an additional conventional heating function comprising:
an oven cavity (10) formed as a casing with two side cavity walls, a top cavity wall, a bottom cavity wall, a rear cavity wall, and an open front side; a front frame (12) attached at front portions of the two side cavity walls, the top cavity wall, and the bottom cavity wall, said front frame (12) enclosing the front portions of the two side cavity walls, the top cavity wall, and the bottom cavity wall along a circumferential direction; an oven door (14) for covering the open front side of the oven cavity (10) completely and the front frame (12) at least partially in a closed state of said oven door (14); microwave heating components for generating electromagnetic fields; a conventional heating function; a first gap (16) formed between an inner side of the oven door (14), and both the front frame (12) and the front portions of the two side cavity walls, the top cavity wall, and the bottom cavity wall, wherein at least one size dimension of the first gap (16) varies when the oven door (14) is opened; a second gap (18) for thermal insulation between the oven cavity (10) and the front frame (12), said second gap (18) being formed between the front frame (12) and the front portions of the two side cavity walls, the top cavity wall, and the bottom cavity wall, wherein: the second gap (18) dimensions are constant when the oven door (14) is opened, the second gap (18) encloses the front portions of the two side cavity walls, the top cavity wall, and the bottom cavity wall along a circumferential direction, and the second gap (18) extends perpendicularly to the first gap (16).