PROBLEM TO BE SOLVED: To provide a steam generator having a heating chamber whose surface is exposed easily.SOLUTION: The steam generator comprises a storage section 4, a case 2 which stores a predetermined liquid 7 inside and is stored detachably in the storage section 4, a heater 9 which is arranged opposite to the case 2 stored in the storage section 4 while interposing the storage section 4 and has the surface that is exposed by removing the case 2 from the storage section 4, and a heating chamber 6 which communicates with the inside of the case 2 and is formed between the outer circumference of the case 2 and the surface of the heater 9 when the case 2 is stored in the storage section 4.COPYRIGHT: (C)2012,JPO&INPIT【課題】加熱室の表面を容易に露出させることが可能な蒸気発生装置を提供する。【解決手段】蒸気発生装置は、収容部4と、内部に所定の液体7を貯留し、収容部4に着脱可能に収容されるケース2と、収容部4を挟んで収容部4に収容されたケース2の反対側に配設され、収容部4からケース2が取り外されることにより表面が露出するヒータ9と、ケース2の内部に連通し、ケース2が収容部4に収容されることによりケース2の外周面とヒータ9の表面との間に形成される加熱室6とを備える。【選択図】図2