发明授权
US07855486B2 Claw pole generator, especially for bicycle generator hub 有权
爪式发电机,特别适用于自行车发电机集线器

  • 专利标题: Claw pole generator, especially for bicycle generator hub
  • 专利标题(中): 爪式发电机,特别适用于自行车发电机集线器
  • 申请号: US12485452
    申请日: 2009-06-16
  • 公开(公告)号: US07855486B2
    公开(公告)日: 2010-12-21
  • 发明人: Hiroshi Hasegawa
  • 申请人: Hiroshi Hasegawa
  • 申请人地址: JP Osaka
  • 专利权人: Shimano Inc.
  • 当前专利权人: Shimano Inc.
  • 当前专利权人地址: JP Osaka
  • 代理机构: Global IP Counselors, LLP
  • 优先权: JP2008-289437 20081112
  • 主分类号: H02K1/12
  • IPC分类号: H02K1/12
Claw pole generator, especially for bicycle generator hub
摘要:
A claw pole generator is basically provided with a circularly arranged permanent magnet and an internal stationary unit with a yoke and a coil. The yoke includes a first laminated yoke and a second laminated yoke. The first and second laminated yokes include a disc-shaped connecting portion arranged on one side of the coil and a plurality of outer circumferential yoke portions that are arranged between the coil and the permanent magnet with circumferential spaces in-between. Each of the outer circumferential yoke portions has a plurality of outer circumferential yoke layers laminated overlying each other along a radial direction with respect to the axial centerline of the coil. An outermost one of the outer circumferential yoke layers that is closest to the permanent magnet with a longer axial length than an innermost one of the outer circumferential yoke layers.
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