| 摘要 |
<p>A coil unit including an annular toroidal core (11,21,31,41,51,61) two coils (12,22,32,42,52,62) wound over the toroidal core providing a bifilar winding, a winding-start positioning part (11C,21D,31C,41D,51B,61B), and a winding-end positioning part (11D,21E,31D,41E,51C,61C). The winding-start positioning part is adapted for making contact with a winding-start portion of the coils. The winding-end positioning part is adapted for making contact with a winding-end portion of the coils for regulating the positions of the winding-start portion and the winding-end portion relative to the toroidal core.
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