| 摘要 |
PURPOSE: A slot bobbin is provided to reinforce insulation of a feedback coil with a first coil and a second coil, and to improve output regulation in case that a trans is constituted by means of the slot bobbin. CONSTITUTION: A slot bobbin comprises a first and a second slots in a central axis direction and in an orthogonal direction of a wiring section, respectively. The first slot (250) is comprised in plural to have a regular width. The second slot (251) is formed to have a narrower width than the first slot's on an outside of the first slot. The first and second slots are divided by a partition (160) to be insulatedly separated from each other. The slot bobbin has an advantage of improving a regulation of outputs and securing a positive insulation with first and second coils (10, 20), since the first slot capable of wiring a feedback coil (30) on the bobbin of the slot shape is formed on the outside of the first slot and has a narrower width than the width of the first slot capable of wiring the first and second coils. Further, the slot bobbin has another advantage of reducing production cost and improving work achievement, since the feedback coil is completely separated from the second coil and is wired on other slot without an additional insulation screen for insulating the feedback coil.
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