| 摘要 |
PURPOSE:To reduce a stress applied to a lead wire and obtain a rotor resistant to high speed and high vibration, by contriving the lead wire of a field coil not to be bonded to a concave opening section between click-formed magnetic poles. CONSTITUTION:A bobbin is wound up with a field coil 4, and a projection 7 set on the bobbin is wound up with the end of the coil, and the coil is connected to a slip ring with a lead wire 5 through the 'U' groove 11 of the projection 7. The 'U' groove 11 is positioned at the center of a concave opening section 8. By this organization, the lead wire 5 can pass the roughly central section of the concave opening section 8, and a sufficient distance from the both sides of the concave opening section 8 can be kept, and the lead wire can be prevented from being stuck due to varnish.
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