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1. 发明申请

US20150381017A1 MOTOR 有权
标题翻译：发动机
公开(公告)号：US20150381017A1
公开(公告)日：2015-12-31
申请号：US14690622
申请日：2015-04-20
申请人： Nidec Corporation
发明人： Kazuya KITAJI , Jun NAGASAWA , Keizo FURUKAWA
IPC分类号： H02K11/00 , H02K1/16 , H02K1/30
CPC分类号： H02K11/215 , H02K1/16 , H02K1/2733 , H02K1/30 , H02K29/06 , H02K29/08
摘要： A motor includes a rotating portion including a shaft and a rotor, and a stationary portion including a stator and a magnetic sensor. The magnetic sensor is located above the rotor to detect the rotational position of the rotor. The rotor includes a tubular rotor core defined by laminated steel sheets; a rotor magnet including an upper end surface at an axial level higher than an axial level of an upper end surface of the rotor core; and a rotor holder including a ferromagnetic body, and above the rotor core and radially inside of the rotor magnet. Each of the rotor core and an outer cylindrical portion of the rotor holder is in contact with the rotor magnet or opposite to the rotor magnet with a gap intervening therebetween.
摘要翻译：马达包括具有轴和转子的旋转部分和包括定子和磁传感器的固定部分。磁传感器位于转子上方，以检测转子的旋转位置。转子包括由层压钢板限定的管状转子芯; 转子磁体，其包括在比所述转子芯的上端面的轴向高度高的轴向高度的上端面; 以及转子保持器，其包括铁磁体，并且位于转子芯之上并且在转子磁体的径向内侧。转子芯体和转子保持器的外圆筒部分都与转子磁体接触或与转子磁体相对置，间隙间插入转子磁体。

2. 发明申请

US20180135649A1 AXIAL FAN AND REFRIGERATOR 审中-公开
公开(公告)号：US20180135649A1
公开(公告)日：2018-05-17
申请号：US15791454
申请日：2017-10-24
申请人： Nidec Corporation
发明人： Ryosuke ISHIDA , Jun NAGASAWA
IPC分类号： F04D29/52 , F04D25/06 , F04D25/08 , F04D29/32 , F25D17/06
摘要： An axial fan includes an impeller, a motor, and a housing. The impeller is configured to rotate about a rotation axis extending in a vertical direction; a motor configured to rotationally drive the impeller. The housing is disposed radially outside the impeller and the motor. An inner wall surface of the housing includes a groove recessed radially outward and extending in the vertical direction. At least a first end of the groove in the vertical direction extends to one end of the housing in the vertical direction.

3. 发明申请

US20190157917A1 STATOR AND MOTOR 审中-公开
公开(公告)号：US20190157917A1
公开(公告)日：2019-05-23
申请号：US15986922
申请日：2018-05-23
申请人： Nidec Corporation
发明人： Jun NAGASAWA
IPC分类号： H02K1/14 , H02K3/34 , H02K3/46 , H02K1/18 , H02K1/27
CPC分类号： H02K1/14 , H02K1/187 , H02K1/2786 , H02K3/34 , H02K3/345 , H02K3/46 , H02K3/522
摘要： An upper insulator and a lower insulator each include extended portions each extending in a circumferential direction near a radially outer end of a corresponding one of teeth. The teeth are each provided with a coil formed of a conducting wire that is wound around the tooth with the upper insulator and the lower insulator in between. The extended portions of the lower insulator each have a guide portion at an edge on a circumferentially outer and upper side near a region where the conducting wire is led from the upper side toward the lower side when wound into the coil.

4. 发明申请

US20180019645A1 MOTOR 审中-公开
公开(公告)号：US20180019645A1
公开(公告)日：2018-01-18
申请号：US15716617
申请日：2017-09-27
申请人： Nidec Corporation
发明人： Kazuya KITAJI , Jun NAGASAWA , Keizo FURUKAWA
IPC分类号： H02K29/08 , H02K1/27 , H02K1/30 , H02K1/16
CPC分类号： H02K11/215 , H02K1/16 , H02K1/2733 , H02K1/30 , H02K29/06 , H02K29/08
摘要： A motor includes a rotating portion with a shaft extending along a rotation axis and a rotor that rotates together with the shaft, a stationary portion with a stator located radially outside of the rotor and a magnetic sensor located above the rotor to detect a rotational position of the rotor. The rotor includes a rotor core, a rotor magnet located radially outside of the rotor core and under the magnetic sensor, in contact with the rotor core or located opposite to the rotor core with a first gap therebetween. A recessed portion is recessed from each of an upper end surface and an outer circumferential surface of the rotor core. An inner circumferential surface of a lower end portion of the rotor holder is fixed to a radially inner surface of the recessed portion.

5. 发明申请

US20140132122A1 MOTOR 有权
标题翻译：发动机
公开(公告)号：US20140132122A1
公开(公告)日：2014-05-15
申请号：US14065549
申请日：2013-10-29
申请人： Nidec Corporation
发明人： Keizo FURUKAWA , Nobuyuki IWASHITA , Jun NAGASAWA
IPC分类号： H02K1/18 , H02K1/06 , H02K11/00 , H02K3/34
CPC分类号： H02K3/345 , H02K5/08 , H02K5/15 , H02K5/1732 , H02K5/225 , H02K11/215 , H02K11/33
摘要： A motor includes a shaft, an annular rotor magnet, an armature arranged to cover the rotor magnet, an upper bracket fixed to an axial upper portion of the armature, and a lower bracket fixed to an axial lower portion of the armature. The armature includes an annular core-back, a plurality of magnetic pole teeth protruding radially inward from the core-back, an insulator arranged to cover the magnetic pole teeth, and a coil wound around the magnetic pole teeth through the insulator. The insulator includes an annular core-back insulating portion arranged radially outward of the coil and extended axially upward. The upper bracket is fixed by a plurality of fixing members positioned radially inward of an outer circumferential surface of the core-back.
摘要翻译：电动机包括轴，环形转子磁体，布置成覆盖转子磁体的电枢，固定到电枢的轴向上部的上支架和固定到电枢的轴向下部的下支架。电枢包括环形芯背，从芯背径向向内突出的多个磁极齿，布置成覆盖磁极齿的绝缘体和通过绝缘体缠绕在磁极齿周围的线圈。绝缘体包括沿线圈径向向外并且向上轴向延伸的环形芯背绝缘部分。上支架由位于芯背的外圆周表面的径向内侧的多个固定构件固定。

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