Patent ID: 9473049
Filing Date: 2016-10-18
CPC Classification: F03D,H02N,H05B,Y02E

Claim Text:
1. An induction heating apparatus that heats a heating medium, comprising: a rotor having a rotation shaft; and a stator having a heating portion disposed at a distance from said rotor, a magnetic flux generating portion, provided in said rotor and opposing said heating portion, that generates magnetic flux in a direction of said heating portion, said heating portion being formed of a composite material of a magnetic material and a conductive material, and having a structure in which magnetic material portions and a conductive material portion are combined so that said magnetic material portions are surrounded by said conductive material portion as viewed from said magnetic flux generating portion, when said magnetic flux generating portion is in a position opposed to said heating portion, a cross-sectional area of said magnetic material portion being smaller than a perpendicular cross sectional area of linked magnetic flux generated by said magnetic flux generating portion in said heating portion, said conductive material portion being disposed to partially surround a periphery of said magnetic material portion, and a flow passage in which said heating medium circulates being provided in said heating portion.