-
公开(公告)号：US06906444B2
公开(公告)日：2005-06-14
申请号：US10192302
申请日：2002-07-09
申请人： Masakazu Hattori , Naohiro Makino
发明人： Masakazu Hattori , Naohiro Makino
CPC分类号： H02K1/2766
摘要： Each permanent magnet formed in an open-letter shape is divided into a plurality of parts, the divided magnets are respectively fitted in open letter-shaped inserting portions, and ribs are respectively provided in dividing portions of the permanent magnets. Accordingly, it is possible to prevent the breakage of pole connecting portions at an outermost periphery of the rotor as adjacent inner peripheral-side permanent magnets directly come into contact with and push the outer peripheral-side permanent magnets. Alternatively, an annular nonmagnetic material is provided on an outer peripheral portion of the rotor so as to cover the open letter-shaped permanent magnets and magnetic material portions inside the open-letter portions, whereby the rotor core is made resistant against breakage, and the flux leakage is minimized.
摘要翻译： 形成为开放字形的永磁体被分成多个部分，分割的磁体分别装配在开放字形的插入部分中，并且在永磁体的分割部分分别设有肋。 因此，可以防止在相邻的内周侧永久磁铁直接与外周侧永久磁铁接触并推动外周侧永久磁铁时，在转子的最外周的极连接部的断线。 或者，在转子的外周部设置环状非磁性材料，以覆盖开放字母部分内的开放字母形状的永磁体和磁性材料部分，从而使转子芯抗破坏， 磁通泄漏最小化。
-
公开(公告)号：US06225713B1
公开(公告)日：2001-05-01
申请号：US09514648
申请日：2000-02-29
申请人： Masakazu Hattori , Naohiro Makino
发明人： Masakazu Hattori , Naohiro Makino
IPC分类号： H02K3300
CPC分类号： H02K33/00
摘要： An electromagnetic force motor comprising: a magnetic housing having a housing chamber formed therein; a stationary magnetic member received in the housing chamber in stationary relationship with respect to the magnetic housing; a movable magnetic member received in the housing chamber to be movable with respect to the stationary magnetic member, the stationary magnetic member, and the movable magnetic member forming with a magnetic flux gap to permit a magnetic flux to pass therethrough, the magnetic housing, the stationary magnetic member, and the movable magnetic member each made of a magnetic substance and collectively forming a magnetic circuit unit that is to allow a magnetic flux to pass therethrough; a permanent magnet positioned in the housing chamber and generating a magnetic flux; and an electromagnetic coil positioned in the housing chamber and generating a magnetic flux with an electric current imparted thereto, the magnetic circuit unit partly having a diminished cross-sectional area being small enough to ensure that the magnetic circuit unit is saturated with the magnetic flux as the movable magnetic member is positioned in the neighborhood of the first axial position of the movable magnetic member, the width of the magnetic flux gap being small enough to ensure that the strength of the magnetic attraction between the stationary magnetic member and the movable magnetic member increases in response to the increased density of the magnetic flux flowing between the magnetic surface of the stationary magnetic member and the magnetic surface of the movable magnetic member with an increase rate increasing as the movable magnetic member is positioned in the neighborhood of the first axial position of the movable magnetic member, the diminished cross-sectional area of the magnetic circuit unit and the width of the magnetic flux gap being each small enough to ensure that the strength of the magnetic attraction between the stationary magnetic member and the movable magnetic member substantially linearly increases in response to the increased level of the electric current imparted to the electromagnetic coil under the influence of each of the diminished cross-sectional area of the magnetic circuit unit and the width of the magnetic flux gap as the movable magnetic member is positioned in the neighborhood of the first axial position of the movable magnetic member.
-
公开(公告)号：US08341956B2
公开(公告)日：2013-01-01
申请号：US12431611
申请日：2009-04-28
申请人： Naohiro Makino
发明人： Naohiro Makino
IPC分类号： F16D31/02
CPC分类号： F04B49/002 , F15B2211/20515 , F15B2211/20553 , F15B2211/26 , F15B2211/27
摘要： An electric actuator of the present invention includes a hydraulic fluid supply device and an actuator actuated in response to an input of hydraulic fluid from a variable-volume pump. The hydraulic fluid supply device includes an adjustable-speed motor, the variable-volume pump which is driven by the adjustable-speed motor and ejects hydraulic fluid, an electric motor control unit which controls the adjustable-speed motor so as to achieve an intended rotation speed, and a pump control unit which controls the variable-volume pump so that the ejection volume of the variable-volume pump decreases with an increase in the ejection pressure of the variable-volume pump.
摘要翻译： 本发明的电致动器包括液压流体供应装置和响应于来自可变容积泵的液压流体的输入而致动的致动器。 液压流体供给装置包括可调速电动机，由可调速电动机驱动并排出液压流体的可变容量泵，控制可调速电动机以实现预期旋转的电动机控制单元 速度和泵控制单元，其控制可变体积泵，使得可变容积泵的喷射量随着可变体积泵的喷射压力的增加而降低。
-
公开(公告)号：US20090266934A1
公开(公告)日：2009-10-29
申请号：US12431611
申请日：2009-04-28
申请人： Naohiro Makino
发明人： Naohiro Makino
CPC分类号： F04B49/002 , F15B2211/20515 , F15B2211/20553 , F15B2211/26 , F15B2211/27
摘要： An electric actuator of the present invention includes a hydraulic fluid supply device and an actuator actuated in response to an input of hydraulic fluid from a variable-volume pump. The hydraulic fluid supply device includes an adjustable-speed motor, the variable-volume pump which is driven by the adjustable-speed motor and ejects hydraulic fluid, an electric motor control unit which controls the adjustable-speed motor so as to achieve an intended rotation speed, and a pump control unit which controls the variable-volume pump so that the ejection volume of the variable-volume pump decreases with an increase in the ejection pressure of the variable-volume pump.
摘要翻译： 本发明的电致动器包括液压流体供应装置和响应于来自可变容积泵的液压流体的输入而致动的致动器。 液压流体供给装置包括可调速电动机，由可调速电动机驱动并排出液压流体的可变容量泵，控制可调速电动机以实现预期旋转的电动机控制单元 速度和泵控制单元，其控制可变体积泵，使得可变容积泵的喷射量随着可变体积泵的喷射压力的增加而降低。
-
-
-
搜索结果
4 条记录 (耗时 0.022 秒)
