公开(公告)号：US08063529B2

公开(公告)日：2011-11-22

申请号：US12565227

申请日：2009-09-23

申请人： Ben To Fan Wong ,  Biao Yu ,  Tain Jun Liao

发明人： Ben To Fan Wong ,  Biao Yu ,  Tain Jun Liao

IPC分类号： H02K21/04

CPC分类号： H02K1/17

摘要： A motor comprises a stator and a rotor (20) disposed within the stator. The stator comprises a shell comprising a plurality of sidewalls (10a-10d) and arcuate connection parts (11a-11d) connecting neighboring sidewalls. The cross section of the shell is a polygon with fillets. The stator also comprises a plurality of magnets (12a-12d) installed inside the arcuate connection parts. The magnets (12a-12d) are mutual arranged at intervals. The outer surface of each magnet (12a-12d) is attached to inner surfaces of the two neighboring sidewalls (10a-10b) and a gap is formed between the magnet and the inner surface of the corresponding arcuate connection part. Air gaps are formed between the inner surface of the magnets (12a-12d) and the outer surface of the rotor. Disposing the magnets inside the arcuate connection parts improves the space utilization ratio. In addition, the gaps formed between the outer surface of magnets and the inner surface of arcuate connection parts may be used for adhesive to fix the magnets to the shell.

摘要翻译： 电动机包括定子和设置在定子内的转子（20）。 定子包括壳体，其包括多个侧壁（10a-10d）和连接相邻侧壁的弓形连接部分（11a-11d）。 外壳的横截面是带圆角的多边形。 定子还包括安装在弓形连接部分内的多个磁体（12a-12d）。 磁铁（12a-12d）间隔地配置。 每个磁体（12a-12d）的外表面附接到两个相邻侧壁（10a-10b）的内表面，并且在磁体和相应的弓形连接部分的内表面之间形成间隙。 在磁体（12a-12d）的内表面和转子的外表面之间形成气隙。 将磁铁置于弧形连接部件内部可提高空间利用率。 另外，在磁体的外表面和弓形连接部件的内表面之间形成的间隙可以用于将磁体固定到壳体上的粘合剂。