Patent ID: 9119234
Filing Date: 2015-08-25
Classification: H05B

Abstract:
1. A drawer type heating apparatus comprising: a microwave radiation portion adapted to radiate microwaves within a heating space in which an object to be heated is placed; and a heating chamber structural member adapted to enclose microwaves radiated within the heating space; wherein the heating chamber structural member includes each of the suppression protruding portions, which is faced to the inner wall surface of the opening portion in the heating case, is configured to have a flat surface having a smaller-width portion which is a root portion of the suppression protruding portion and a larger-width portion which is a tip-end portion of the suppression protruding portion so that the flat surface faced to the stepped surface of the first radio-wave-propagation-direction suppression-area increases in width from the smaller-width portion to the larger-width portion in stepwise, and the radio-wave transmission suppression portion has suppression spaces which have different gap dimensions of the faced surfaces between the flat surface of the suppression protruding portion, which is faced to the first radio-wave-propagation-direction suppression-area, and each of the stepped surfaces of the first radio-wave-propagation-direction suppression-area.