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公开(公告)号：US12015309B2
公开(公告)日：2024-06-18
申请号：US17665594
申请日：2022-02-07
发明人： Wataru Kusakabe , Yuya Iwasaki
CPC分类号： H02K1/2766 , H02K21/16
摘要： A columnar core main body including a plurality of laminated cores having the same shape and that has a shaft hole on a rotation center side, a plurality of permanent magnets penetrate around the shaft hole of the core main body in an axial direction and is fixed in each of a plurality of magnet accommodating holes arranged in a circular shape in a circumferential direction, and protrusions in the magnet accommodating holes in one-to-one correspondence. The protrusion protrudes along the circumferential direction and comes into pressure contact with the permanent magnet accommodated in the magnet accommodating hole from the radially inner side. Each of the protrusions is defined by a protrusion forming space extending along the circumferential direction from a radially inner side surface of each magnet accommodating hole, and at least one of the protrusion and the protrusion forming space is on the magnetic pole center.
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公开(公告)号：US12009699B2
公开(公告)日：2024-06-11
申请号：US17666408
申请日：2022-02-07
发明人： Wataru Kusakabe
CPC分类号： H02K1/2766 , H02K21/16
摘要： A rotor includes a cylindrical core main body having a columnar space on a rotation center side. A plurality of magnet accommodating hole pair penetrates the core main body in an axial direction and includes a pair of magnets accommodating holes arranged in a V shape so as to be separated from each other toward one side of the core main body which is a stator side in a radial direction. A plurality of permanent magnets is fixed in the respective magnet accommodating holes. The plurality of permanent magnets come into pressure contact with the permanent magnet from the q-axis side and the other side in the radial direction. A protrusion forming space penetrates in the axial direction and extending from a side surface to the one side in the radial direction along the side surface.
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公开(公告)号：US20160365763A1
公开(公告)日：2016-12-15
申请号：US15180525
申请日：2016-06-13
发明人： Wataru Sakurai , Wataru Kusakabe
IPC分类号： H02K1/27
CPC分类号： H02K1/2773 , H02K1/2706 , H02K1/2713 , H02K15/03
摘要： A rotor includes: a circular rotor core in which a plurality of magnetic poles are formed in a circumferential direction on an outer circumferential surface; an auxiliary magnet placed on an axial end face of the rotor core so as to face the rotor core; a plate-shaped mounting member having a thickness t1 on which the auxiliary magnet is mounted; and a plate-shaped back yoke having a thickness t2 and placed opposite to the rotor core, sandwiching the auxiliary magnet and the mounting member.
摘要翻译： 转子包括：圆周转子铁芯，其中沿圆周方向在外圆周表面上形成多个磁极; 辅助磁体，其设置在转子铁芯的轴向端面上，以面对转子铁心; 具有安装有辅助磁体的厚度t1的板状安装构件; 以及具有厚度t2并与转子芯相对放置的板状后轭，夹持辅助磁体和安装构件。
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