| 摘要 |
<P>PROBLEM TO BE SOLVED: To cut the manufacturing cost of an electromagnetic induction heating device, as well as to reduce its body size and improve its electrical efficiency. <P>SOLUTION: An electromagnetic induction heating device comprises a conductive heat generating unit 26 created in cylindrical form, an endless core disposed on the periphery of the heat generating unit 26, a primary coil wound round the endless core, and a conductive short circuit member 15 connected to both ends in axial direction of the heat generating unit 26 and provided for short-circuiting both ends of the heat generating unit 26. The short circuit member 15 consists of a short circuit body section 33, which is made of a conductive material having lower electric resistance and higher coefficient of thermal conductivity than the heat generating unit 26 and a conductive material having the same coefficient of thermal conductivity as the heat generating unit 26, and a joining end section 34 which is interposed between both ends of the heat generating unit 26 and the short circuit body section 33. The short circuit body section 33 and the joining end section 34 are joined by electron beam welding. <P>COPYRIGHT: (C)2012,JPO&INPIT |
