| 摘要 |
PURPOSE:To drastically enhance mechanical strength of a pot core in such a way that the cut-away portion is not provided at the circumference of a pot core. CONSTITUTION:The projection 11 at the center of pot core 1 is inserted into the hollow portion 22 of coil 2 and the coil 2 sealed with the disk type core 3. The core 3 is provided with the cut-away portions 311, 312, allowing the end portions 6, 28 of the coil 2 to pass therethrough. At the circumference of the core 3, the electrode plate 5 providing the electrode 5 consisting of the insulation plastic 56 and copper is bonded and the end portions 26, 28 of the coil 2 are connected to such electrode. Thereby, mechanical strength of core 1 is drastically improved since the cut-away portion does not exist on the core 1. |
