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公开(公告)号：US09537380B2
公开(公告)日：2017-01-03
申请号：US14005429
申请日：2012-01-18
摘要： A permanent-magnet type rotating electrical machine, including a rotor including a plurality of magnetic poles arranged at an equal interval, and a stator including a plurality of teeth and a plurality of armature windings. A high frequency voltage different in frequency and amplitude from voltages for generating a torque is applied to the armature windings. A magnetic pole position of the rotor is estimated by using a current trajectory of a measured high frequency current. When dq transform is applied to the measured high frequency current, a current trajectory forms an ellipse on d and q axes. Angular variation ranges of a major axis of the ellipse with respect to a load current and a rotor position are set so as to acquire a predetermined position estimation resolution.
摘要翻译： 一种永磁式旋转电机，包括具有以相等间隔排列的多个磁极的转子和包括多个齿的定子和多个电枢绕组。 将频率和振幅与产生转矩的电压不同的高频电压施加到电枢绕组。 通过使用测量的高频电流的当前轨迹来估计转子的磁极位置。 当对测量的高频电流施加dq变换时，当前轨迹在d轴和q轴上形成一个椭圆。 椭圆相对于负载电流和转子位置的长轴的角度变化范围被设定为获得预定的位置估计分辨率。
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公开(公告)号：US20140001908A1
公开(公告)日：2014-01-02
申请号：US14005429
申请日：2012-01-18
IPC分类号： H02K1/27
摘要： A permanent-magnet type rotating electrical machine, including a rotor including a plurality of magnetic poles arranged at an equal interval, and a stator including a plurality of teeth and a plurality of armature windings. A high frequency voltage different in frequency and amplitude from voltages for generating a torque is applied to the armature windings. A magnetic pole position of the rotor is estimated by using a current trajectory of a measured high frequency current. When dq transform is applied to the measured high frequency current, a current trajectory forms an ellipse on d and q axes. Angular variation ranges of a major axis of the ellipse with respect to a load current and a rotor position are set so as to acquire a predetermined position estimation resolution.
摘要翻译： 一种永磁式旋转电机，包括具有以相等间隔排列的多个磁极的转子和包括多个齿的定子和多个电枢绕组。 将频率和振幅与产生转矩的电压不同的高频电压施加到电枢绕组。 通过使用测量的高频电流的当前轨迹来估计转子的磁极位置。 当对测量的高频电流施加dq变换时，当前轨迹在d轴和q轴上形成一个椭圆。 椭圆相对于负载电流和转子位置的长轴的角度变化范围被设定为获得预定的位置估计分辨率。
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公开(公告)号：US09331542B2
公开(公告)日：2016-05-03
申请号：US14434350
申请日：2012-10-30
CPC分类号： H02K5/10 , H02K5/1732
摘要： The electric motor is the electric motor that includes a shaft part that rotates around a rotation shaft and a casing that accommodates at least part of the shaft part. A through hole is formed in the casing at a position that overlaps with the rotation shaft. A set screw is screwed into the through hole so as to close the through hole. An O-ring is interposed between the casing and the set screw so as to suppress intrusion of water and dust into the casing.
摘要翻译： 电动机是包括绕旋转轴旋转的轴部和容纳至少一部分轴部的壳体的电动机。 在与旋转轴重叠的位置处，在壳体中形成通孔。 将固定螺丝拧入通孔中以关闭通孔。 O型圈插入在壳体和固定螺钉之间，以防止水和灰尘侵入壳体。
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公开(公告)号：US20150270758A1
公开(公告)日：2015-09-24
申请号：US14434350
申请日：2012-10-30
IPC分类号： H02K5/10
CPC分类号： H02K5/10 , H02K5/1732
摘要： The electric motor is the electric motor that includes a shaft part that rotates around a rotation shaft and a casing that accommodates at least part of the shaft part. A through hole is formed in the casing at a position that overlaps with the rotation shaft. A set screw is screwed into the through hole so as to close the through hole. An O-ring is interposed between the casing and the set screw so as to suppress intrusion of water and dust into the casing.
摘要翻译： 电动机是包括绕旋转轴旋转的轴部和容纳至少一部分轴部的壳体的电动机。 在与旋转轴重叠的位置处，在壳体中形成通孔。 将固定螺丝拧入通孔中以关闭通孔。 O型圈插入在壳体和固定螺钉之间，以防止水和灰尘侵入壳体。
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