| 摘要 |
A microwave oven is provided to cancel electromagnetic waves leaking from a corner where a wall of an external case meets a hinge shaft support due to phase difference. A microwave oven includes a main body having a cooking chamber, an external case(120) coupled with the main body, a door frame(100) disposed in front of the main body, a hinge shaft(130) formed on the door frame, and a hinge shaft support(125) formed on the external case to support the hinge shaft. The door frame includes the hinge shaft to be hinged to the external case, and a door choke bent in a predetermined shape to shield electromagnetic waves leaking between the external case and the door frame. A hinge choke(122) is installed at a place where the hinge shaft support is formed and blocks the electromagnetic waves leaking through the hinge shaft. The hinge choke has a width(W) and a protruded shape. The hinge choke includes a first expanding portion(121) outwardly bent perpendicular to the wall of the external case, an extending portion(128) vertically bent downwardly from the first expanding portion, and a second expanding portion(124) crossing the extending portion.
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