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1. 发明授权

US07091642B2 Field assembly for a motor and method of making same 有权
标题翻译：电动机现场组装及其制造方法
公开(公告)号：US07091642B2
公开(公告)日：2006-08-15
申请号：US11113429
申请日：2005-04-22
申请人： Michael Agnes , Allyn Boyce , Hung Du , Earl Ortt , Brandon Verbrugge , Richard H. Walter , Ren T. Wang
发明人： Michael Agnes , Allyn Boyce , Hung Du , Earl Ortt , Brandon Verbrugge , Richard H. Walter , Ren T. Wang
IPC分类号： H02K21/26 , H02K21/38 , H02K5/24
CPC分类号： H02K1/2786 , H02K1/17 , H02K5/00 , H02K5/08 , H02K5/1735 , H02K7/145 , H02K9/06 , H02K23/04 , Y10T29/49009 , Y10T29/49011 , Y10T29/49012
摘要： A cylinder/magnet assembly for a field of an electric machine, such as a stator of a brush type motor or a rotor of a brushless motor, alternator or generator, is formed by stamping a blank to form anchors extending upwardly from a surface of the blank and stamping holes in the blank where first and second portions of the anchors meet an inner surface of the cylinder to facilitate rolling of the cylinder from the blank. After a cylinder is rolled from the blank, pre-formed magnets are placed around an inner surface of the cylinder and plastic molded around the magnets and anchors to secure the magnets to the cylinder. In an aspect of the invention, the holes act as magnetic chokes. In another aspect of the invention, the anchors are formed as flux spreaders. In another aspect of the invention, the north and south poles of a cylinder and magnet assembly have unequal distribution angles. In another aspect of the invention, the north and south poles of a cylinder and magnet assembly have unequal numbers of magnets. In another aspect of the invention, flux spreaders are disposed on inner surfaces of the magnets of each pole of a cylinder and magnet assembly. In another aspect of the invention, the foregoing aspects are used in a stator of a motor. In another aspect of the invention, such a stator is used in a power tool.
摘要翻译：用于电机领域的气缸/磁体组件，例如刷式电动机的定子或无刷电动机，交流发电机或发电机的转子，通过冲压坯件形成锚固件，以形成从其表面向上延伸的锚固件坯件中的空白和冲压孔，其中锚的第一和第二部分与圆柱体的内表面相遇以便于从坯料滚动圆柱体。在从坯料滚动圆筒之后，将预先形成的磁体放置在圆筒的内表面周围，并将塑料模制在磁体和锚固件周围，以将磁体固定到气缸。在本发明的一个方面，孔用作磁扼流圈。在本发明的另一方面，锚固件形成为助焊剂撒布机。在本发明的另一方面，气缸和磁体组件的北极和南极具有不相等的分配角度。在本发明的另一方面，气缸和磁体组件的北极和南极具有不等数量的磁体。在本发明的另一方面，助焊剂撒布机设置在圆柱体和磁体组件的每个磁极的磁体的内表面上。在本发明的另一方面，上述方面用于电机的定子中。在本发明的另一方面，这种定子用于电动工具中。

2. 发明授权

US07088024B2 Field assembly for a motor and method of making same 有权
标题翻译：电动机现场组装及其制造方法
公开(公告)号：US07088024B2
公开(公告)日：2006-08-08
申请号：US11113414
申请日：2005-04-22
申请人： Michael Agnes , Allyn Boyce , Hung Du , Earl Ortt , Brandon Verbrugge , Richard H. Walter , Ren T. Wang , Jiaqi Zhang
发明人： Michael Agnes , Allyn Boyce , Hung Du , Earl Ortt , Brandon Verbrugge , Richard H. Walter , Ren T. Wang , Jiaqi Zhang
IPC分类号： H02K21/26 , H02K21/38 , H02K5/24
CPC分类号： H02K1/2786 , H02K1/17 , H02K5/00 , H02K5/08 , H02K5/1735 , H02K7/145 , H02K9/06 , H02K23/04 , Y10T29/49009 , Y10T29/49011 , Y10T29/49012
摘要： A stator of an electric motor is formed by inserting pre-formed magnets on a cylinder having anchors and plastic is molded around the magnets and anchors to secure the magnets to a surface of the cylinder, forming a cylinder/magnet assembly. A pilot feature is formed in at least one endwall of the plastic molding when it is molded. An end plate is located with respect to the cylinder/magnet assembly by mating a corresponding pilot feature of the end plate with the pilot feature in the endwall of the plastic molding. In another aspect of the invention, magnets are inserted into magnet receiving pockets of a cylinder and plastic molded therearound with the magnet pockets holding the magnets in place during molding of the plastic. In another aspect of the invention, the north and south poles of a cylinder and magnet assembly have unequal distribution angles. In another aspect of the invention, the north and south poles of a cylinder and magnet assembly have unequal numbers of magnets. In another aspect of the invention, the anchors are also formed as flux spreaders. In another aspect of the invention, the stator is used in a power tool.
摘要翻译：电动机的定子通过将预先形成的磁体插入到具有锚固件的圆柱体上而形成，并且塑料围绕磁体和锚固件模制，以将磁体固定到气缸的表面，形成气缸/磁体组件。塑料模制品的模制中的至少一个端壁形成一个先导特征。端板相对于气缸/磁体组件通过将端板的相应引导部件与塑料模制件的端壁中的导向部件相配合而定位。在本发明的另一方面，将磁体插入到圆柱体的磁体接收凹部中并在其周围模制塑料，在塑料模制期间磁体袋将磁体保持在适当位置。在本发明的另一方面，气缸和磁体组件的北极和南极具有不相等的分配角度。在本发明的另一方面，气缸和磁体组件的北极和南极具有不等数量的磁体。在本发明的另一方面，锚也形成为助焊剂撒布机。在本发明的另一方面，定子用于电动工具中。

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