| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To obtain an induction heating device capable of suppressing reduction of heating efficiency of a body to be heated due to a leakage magnetic field, and capable of lessening heating variations of the body to be heated. <P>SOLUTION: First and second dielectric points 1, 2 have a yoke laminate 3, a coil 4, and a refrigerant piping 5. The yoke laminate 3 is formed by alternately laminating a plurality of sheets of magnetic body yoke pieces 6 and a plurality of sheets of cooling plates 7. Both ends of the length direction of the yoke laminates 3 are formed by the magnetic body yoke pieces 6, and the cooling plates 7 are arranged to be pinched between the mutually neighboring magnetic body yoke pieces 6. All of the length dimension, the thickness dimension, and the height dimension of the cooling plates 7 have smaller dimensions than the length dimension, the thickness dimension, and the height dimension of the magnetic body yoke pieces 6. Moreover, the opposed face 7a to the cooling plate is arranged at a position more separated from a route for conveying the body to be heated than a magnetic pole face 6a. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
