Patent ID: 7414227

Claim:
A high frequency heating apparatus having a steam generating function, comprising: a heating chamber in which a heating target to be heated is accommodated; high frequency wave generating means for outputting a high frequency wave into the heating chamber; and a steam supply mechanism for supplying heating steam into the heating chamber, wherein at least one of the high frequency wave and the heating steam is supplied into the heating chamber to carry out a heating treatment on the heating target, and the steam supply mechanism comprises: a water tank detachably secured to the main body of the apparatus, a water supply tray, heating means located in the vicinity of the water supply tray for heating the water supply tray to vaporize water on the water supply tray, a water supply path for leading water in the water tank to the water supply tray through a heating area based on the heating means, whereby water in the water supply path which is thermally expanded through thermal conduction of heat generated by the heating means is supplied to the water supply tray, and a check valve at the base end side of the water supply path to prevent thermally expanded water from flowing back to the water tank side.