Patent ID: 6323471
Filing Date: 2001-11-27
Classification: H05B

Abstract:
An apparatus for heating objects to be dried, concentrated, defrosted, roasted or sterilized, comprising:a pressure-reducing chamber equipped with a reduced pressure level-regulating valve;a fixed or variable power supply;a microwave heating device which can deliver intermittent or continuous heating;a far infrared heating device equipped with a control panel located outside said pressure-reducing chamber to control the heating temperature of infrared radiation emitted by said far infrared heating device;a control portion for simultaneously carrying out microwave heating and far infrared heating;a shelf-type metal support jig placed inside the pressure-reducing chamber,a top object holding jig;a bottom object-holding jig, andplate-shaped or tray-shaped object-holding jigs for holding the objects, stacked on the shelf-type metal support jig, having a first metal reflector plate arranged at a top portion of the shelf-type metal support jig at a prescribed distance from the top object holding jig and a second metal reflector plate arranged at a bottom portion of the shelf-type metal support jig at a prescribed distance from the bottom object-holding jig to partially or completely reflect microwave and far infrared heating to the objects.