| 摘要 |
<p>According to the present invention, a heating coil for an induction heating cooker includes a plurality of thin copper lines coated with an insulating layer. The thin copper lines are braided to form a hatch-pattern tube. The braided thin copper lines are pressed so as to have a small thickness and large height, and are then wound in a spiral shape on the upper surface of the coil supporting plate so that bundles of the braided thin copper lines have a pitch Pl and are spaced from each other by an interval pitch P2 in a radial direction of the coil supporting plate. Accordingly, magnetic fields are uniformly maintained between a center of the heating coil and edges thereof. As a result, it is possible to improve thermal efficiency and cooling efficiency. Further, it is possible to suppress the damage of insulation and to lengthen the life span of products.</p> |
