| 摘要 |
PURPOSE:To lower induction voltage as well as to prevent a man from being struck by electricity by clarifying two heating coils in positional relation when flat heating coils are formed into a two stage construction. CONSTITUTION:The positional relation between the high and low voltage sides of a double heating coil is so clarified that a heating coil 3b at the high voltage side is placed at the lower stage apart from a metallic pan 1, and a heating coil 3a at the lower voltage side is placed at the upper stage close to the metallic pan 1 while they are over-lapped in two stages coaxially about their winding centers. |
