| 摘要 |
PROBLEM TO BE SOLVED: To suppress a warpage at the time of molding a coil holder to support a heating coil. SOLUTION: This is composed of a hub 1a to which a hollow part of the heating coil is fitted, a ring frame 1b to support a peripheral part of the heating coil, and a radial spoke 1c to couple this ring frame 1b and the hub 1a, and in a coil base of an electromagnetic cooker of heat-resistant resin mold product to support the heating coil on an upper face of the coil base, a cross-sectional shape of the ring frame 1b and the spoke 1c is formed in a symmetrical H shape. By this, a strain of a residual stress at the time of molding decreases, and the warpage is suppressed. |
