INDUCTION HEATING APPARATUS

To provide an induction heating apparatus capable of simply realizing at a low cost while having versatility which can cope with a shape of a heated material.SOLUTION: An induction heating apparatus 10 comprises: a coil 22 in which a heated material 12 is arranged therein; a first inner magnetic material 32 arranged between an inner peripheral surface of the coil 22 and a first outer peripheral projection 12c in the heated material 12; a plurality of outer magnetic materials 36 extended in an axial direction so as to be arranged in a peripheral direction on an outer side from an outer peripheral surface of the coil 22; a plurality of inner plates 24 which are arranged in the peripheral direction between the inner peripheral surface of the coil 22 and the heated material 12 and can be detached from and attached in the axial direction; and an inner side conductive air channel 41 formed so that a flow of air by a fun 18 becomes the outer peripheral side from each inner plate 24. The first inner magnetic material 32 is structured so as to enable an adjustment of a position in the peripheral direction and the axial direction. The first inner magnetic material 32 is provided with a plurality of elements while forming a gap G1 in the axial direction. The first inner magnetic material 32 is fixed to one or more of the inner palates 24.SELECTED DRAWING: Figure 4 【課題】被加熱物の形状に対応可能な汎用性を有するとともに、簡易かつ廉価に実現可能な誘導加熱装置を提供する。【解決手段】誘導加熱装置１０は内部に被加熱物１２が配置されるコイル２２と、コイル２２の内周面と被加熱物１２における第１外周突起１２ｃとの間に配置される第１内部磁性材３２と、コイル２２の外周面より外側で、周方向に配列されて軸方向に延在する複数の外部磁性材３６と、コイル２２の内周面と被加熱物１２との間で周方向に配列されて軸方向に着脱可能な複数の内板２４と、ファン１８による空気の流れが内板２４よりも外周側になるように形成された内側導風路４１とを備える。第１内部磁性材３２は周方向および軸方向について位置調整可能に構成されている。第１内部磁性材３２は軸方向に隙間Ｇ１を形成しながら素子が複数設けられている。第１内部磁性材３２は１以上の内板２４に固定される。【選択図】図４