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公开(公告)号:US06717310B2
公开(公告)日:2004-04-06
申请号:US10152820
申请日:2002-05-23
IPC分类号: H02K708
CPC分类号: F16C43/02 , F16C17/107 , F16C17/26 , F16C33/107 , F16C2370/12 , G11B19/2018 , H02K5/1675
摘要: A downsized spindle motor having a longer bearing service life and enhanced shock resistance includes a flange 11, which bears an axial load of a shaft 8, and which is fixed to an end of shaft 8. Laser welded section 14 is provided at the fixed section between shaft 8 and flange 11. Rotor hub 50 is fixed to another end of shaft 8, and laser welded section 54 firmly bonds the two elements.
摘要翻译: 具有较长的轴承使用寿命和增强的抗冲击性的小型主轴电动机包括承载轴8的轴向载荷并且固定到轴8的端部的凸缘11.激光焊接部分14设置在固定部分 轴8与凸缘11之间。转子毂50固定在轴8的另一端,激光焊接部分54牢固地结合两个元件。
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公开(公告)号:US06700256B2
公开(公告)日:2004-03-02
申请号:US09983265
申请日:2001-10-23
申请人: Hideshi Fukutani , Hiroshi Ikeno , Norimasa Takata
发明人: Hideshi Fukutani , Hiroshi Ikeno , Norimasa Takata
IPC分类号: H02K708
CPC分类号: H02K7/086 , G11B19/2009 , H02K5/1675
摘要: In a brushless motor, a projected annular portion is formed in a central portion of a rotor frame and the projected annular portion has a bore that includes a small-bore portion and a large-bore portion. A length L1 of the small-bore portion is in a range of D×0.05≦L1≦D×0.20, where D represents the diameter of the shaft. An axial length L2 of the projected annular portion is arranged to satisfy L2≧L1×2. Thus, the brushless motor realizes a small and thin construction and has a high deflection precision as well as high productivity.
摘要翻译: 在无刷电动机中,突出的环形部分形成在转子框架的中心部分中,并且突出的环形部分具有包括小孔部分和大孔部分的孔。 小孔部分的长度L1在Dx0.05 <= L1 <= Dx0.20的范围内,其中D表示轴的直径。 突出环形部分的轴向长度L2被设置为满足L2> = L1x2。 因此,无刷电动机实现了小而薄的结构,并且具有高的挠曲精度以及高的生产率。
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