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公开(公告)号：US10734851B2
公开(公告)日：2020-08-04
申请号：US15914310
申请日：2018-03-07
申请人： MINEBEA CO., LTD.
发明人： Akio Ando , Hirotaka Sato , Toshiyuki Nishikata
摘要： A motor includes a rotor frame; a shaft; first and second rotor magnets that are coupled with the shaft, formed separately, and spaced apart in an axial direction of the shaft; a stator portion having a stator core, a winding around the stator core, and a plurality of first salient pole portions; a torque holding portion facing the rotor magnets in a radial direction, being arranged between the rotor frame and the stator portion in the axial direction of the shaft, and having a plurality of second salient pole portions; and a circuit board arranged, in the axial direction of the shaft, on a side of the stator portion opposite the rotor frame. An electronic component is arranged at the circuit board.
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公开(公告)号：US09948151B2
公开(公告)日：2018-04-17
申请号：US14479580
申请日：2014-09-08
申请人： MINEBEA CO., LTD.
发明人： Akio Ando , Hirotaka Sato , Toshiyuki Nishikata
CPC分类号： H02K1/146 , H02K1/187 , H02K7/09 , H02K21/22 , H02K21/222
摘要： An outer rotor type brushless motor of the present invention comprises: a rotor portion having a rotor frame, a shaft, and a rotor magnet; a bearing housing; a stator portion facing the rotor magnet and having a stator core, a plurality of first salient pole portions extending toward the rotor magnet from the stator core, an insulation surrounding the first salient pole portion, and a winding around the first salient pole portion through the insulation; and a torque holding portion provided on an inner side of the outer circumference portion of the rotor frame and an outer circumference of the bearing housing, and having a plurality of second salient pole portions disposed coaxially with the stator core and extending toward the rotor magnet, where the first salient pole portions and the second salient pole portions are provided in different numbers.
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3.发明授权Disk rotating motor comprising bracket including cylindrical portion and folded portion 有权盘旋转马达包括支架，其包括圆柱形部分和折叠部分公开(公告)号：US09135945B2
公开(公告)日：2015-09-15
申请号：US14199797
申请日：2014-03-06
申请人： Minebea Co., Ltd.
CPC分类号： G11B19/2009 , G11B19/2036 , H02K5/16 , H02K15/14
摘要： A disk rotating motor is provided with: a stator including a stator core and a bracket for fixing the stator core; a rotor that can be rotated with respect to the stator and includes a rotary shaft; and a bearing that rotatably supports the rotary shaft on the outer diameter side of the rotary shaft, the bearing being supported by the bracket. The bracket includes a cylindrical portion extending along the rotary shaft, and a folded portion formed by folding the upper end of the cylindrical portion onto the outer diameter side such that at least a coaxial part of the folded portion extends coaxially along an outer surface of the cylindrical portion. The cylindrical portion and the folded portion are sandwiched by the stator core and the bearing in a radial direction.
摘要翻译： 盘式旋转马达设有：定子，其包括定子芯和用于固定定子芯的托架; 能够相对于定子旋转并包括旋转轴的转子; 以及在所述旋转轴的外径侧可旋转地支撑所述旋转轴的轴承，所述轴承由所述支架支撑。 支架包括沿着旋转轴延伸的圆柱形部分和折叠部分，该折叠部分通过将圆柱形部分的上端折叠到外径侧上而形成，使得折叠部分的至少一个同轴部分沿着该外部表面的外表面同轴地延伸 圆柱形部分。 圆柱部分和折叠部分被定子芯和轴承沿径向夹持。
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公开(公告)号：US09755478B2
公开(公告)日：2017-09-05
申请号：US14790415
申请日：2015-07-02
申请人： MINEBEA CO., LTD.
发明人： Yuta Amagi , Ryoji Saneshige , Toshiyuki Nishikata
摘要： The invention provides a brushless motor. A stator 16 of the brushless motor has a stator core 17 provided with a plurality of salient poles 18 arranged in its a circumferential direction, and a winding wire 20 wound around the plurality of salient poles 18 through an insulator 19. A rotor 22 of the brushless motor has a tubular rotor yoke 23 arranged to surround the stator 16, an annular magnet for detent torque 25 arranged in an inner peripheral portion of the winding wire 20 on the stator core 17 and surrounding the shaft 15, and a magnetic member 27 coupled to an interior surface of a ceiling portion of the rotor yoke 23 to be opposed to the magnet for detent torque 25, and surrounding the shaft 15.
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5.发明授权Disk rotating motor with bracket defining cylindrical and folded portions, and disk drive device provided with the same 有权具有支架的盘式旋转电机限定圆柱形和折叠部分，以及具有该圆盘和折叠部分的盘驱动装置公开(公告)号：US08737015B2
公开(公告)日：2014-05-27
申请号：US13647755
申请日：2012-10-09
CPC分类号： G11B19/2009 , G11B19/2036 , H02K5/16 , H02K15/14
摘要： A disk rotating motor is provided with: a stator including a stator core and a bracket for fixing the stator core; a rotor that can be rotated with respect to the stator and includes a shaft; and a bearing that rotatably supports the rotary shaft on the outer diameter side of the rotary shaft. The bracket includes a cylindrical portion extending along the shaft and a folded portion formed by folding the upper end of the cylindrical portion onto the outer diameter side. The bearing is fixed to the inner circumferential surface of the cylindrical portion whereas the stator core is fixed to the outer peripheral surface of the folded portion.
摘要翻译： 盘式旋转马达设有：定子，其包括定子芯和用于固定定子芯的托架; 能够相对于定子旋转并包括轴的转子; 以及在旋转轴的外径侧可旋转地支撑旋转轴的轴承。 支架包括沿着轴延伸的圆柱形部分和通过将圆柱形部分的上端折叠到外径侧而形成的折叠部分。 轴承固定在圆筒部的内周面上，而定子芯固定在折叠部的外周面上。
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