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    • 7. 发明授权
    • Outer rotor type brusless DC motor
    • 外转子式无刷直流电机
    • US5497040A
    • 1996-03-05
    • US308405
    • 1994-09-19
    • Hironobu Sato
    • Hironobu Sato
    • H02K1/18H02K1/27H02K1/28H02K5/04H02K5/15H02K5/16H02K5/24H02K21/22H02K29/00H02K7/00
    • H02K1/2786H02K1/187H02K21/22H02K5/04H02K1/28H02K5/15H02K5/16H02K5/24
    • An outer rotor type brushless DC motor has: a first housing member formed of a sheet metal by press-working and having a first central bearing receiver also formed by press-working in the form of generally hollow cylinder; a second housing member formed from a sheet metal by press-working and having a second central bearing receiver also pressed in the form of generally hollow cylinder; a hollow cylindrical stator support formed of a sheet metal by press-working and having one end mounted on the first bearing receiver of the first housing member and another end for receiving the stator on the outer surface of the stator support; a magnets support press-worked from a electrical steel sheet metal for supporting magnets around the stator and inside the second housing member; a first bearing mounted in the first bearing receiver; a second bearing mounted in the second bearing receiver coaxially with the first bearing; and a freely rotatable shaft mounted on the first and second bearings, for firmly supporting thereon the stator support. The motor may be assembled in simple steps without any molding to suppress vibrations and noises. The motor has a suitable design for mass production.
    • 外转子型无刷直流电动机具有:第一壳体部件,其通过压力加工由金属片形成,并且具有第一中心轴承座,该第一中心轴承座还通过以大致中空圆柱体的形式进行压力加工而形成; 通过压力加工由金属板形成并具有第二中心轴承座的第二壳体构件也被压制成大致中空圆柱体; 中空圆柱形定子支承件,其通过压力加工由金属板形成,并且一端安装在第一壳体构件的第一轴承座上,另一端用于在定子支撑件的外表面上接收定子; 从用于将磁体围绕定子支撑并在第二壳体构件内部的电工钢板金属加压的磁体支架; 安装在第一轴承座中的第一轴承; 与所述第一轴承同轴地安装在所述第二轴承座中的第二轴承; 以及安装在第一和第二轴承上的可自由旋转的轴,用于牢固地支撑定子支撑。 马达可以简单的步骤进行组装,而不需要任何模制来抑制振动和噪音。 电机具有适合批量生产的设计。