HEAT MEDIUM HEATING DEVICE

摘要

An object is to provide a heat medium heating device capable of improving adherence between a PTC element and an electrode plate and, furthermore, adherence between a PTC heater and a heat-medium flow-path forming member, while avoiding an increase in cost. A heat medium heating device 10 includes an inner case main body 21 having a flow path of a heat medium formed inside, an outer case main body 31 arranged on an outer peripheral side of the inner case main body 21 and having a flow path of the heat medium formed outside, and a PTC heater 40 held as being interposed between the inner case main body 21 and the outer case main body 31. The inner case main body 21 and the outer case main body 31 each may have a circular outer shape or a rectangular outer shape. Also, the inner case main body 21 and the outer case main body 31 are preferably provided with fins 24 and 34, respectively, facing the flow path of the heat medium.