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1. 发明授权

US09172293B2 Hybrid stepping motor 有权
标题翻译：混合式步进电机
公开(公告)号：US09172293B2
公开(公告)日：2015-10-27
申请号：US13795311
申请日：2013-03-12
申请人： MINEBEA CO., LTD.
发明人： Naohiro Yoshida , Takeshi Sato , Takatoshi Kuwano
IPC分类号： H02K37/18 , H02K37/14
CPC分类号： H02K37/14 , H02K37/18
摘要： There is provided a hybrid stepping motor including a rotor including a plurality of rotor small teeth arranged at an equal pitch on an outer circumferential surface thereof, and a stator including a plurality of salient poles, each including a plurality of stator small teeth arranged to face the outer circumferential surface of the rotor via a gap. The stator small teeth have a predetermined stator tooth thickness and are arranged at a predetermined stator tooth pitch. The rotor small teeth have a predetermined rotor tooth thickness and are arranged at a predetermined rotor tooth pitch. A repulsion area ratio which is a ratio of an area of repulsion poles to a total area of all stator small teeth facing the rotor ranges from 0% to a predetermined threshold value.
摘要翻译：提供了一种混合式步进电动机，其包括：转子，其包括在其外周面上以等间距排列的多个转子小齿;以及定子，其包括多个凸极，每个包括多个定子小齿，经由间隙的转子的外周面。定子小齿具有预定的定子齿厚度并以预定的定子齿距设置。转子小齿具有预定的转子齿厚度并且以预定的转子齿距布置。作为面向转子的所有定子小齿的排斥极的面积与总面积的比的排斥面积比为0％〜规定的阈值。

2. 发明申请

US20130249332A1 HYBRID STEPPING MOTOR 有权
标题翻译：混合步进电机
公开(公告)号：US20130249332A1
公开(公告)日：2013-09-26
申请号：US13795311
申请日：2013-03-12
申请人： MINEBEA CO., LTD.
发明人： Naohiro YOSHIDA , Takeshi SATO , Takatoshi KUWANO
IPC分类号： H02K37/14
CPC分类号： H02K37/14 , H02K37/18
摘要： There is provided a hybrid stepping motor including a rotor including a plurality of rotor small teeth arranged at an equal pitch on an outer circumferential surface thereof, and a stator including a plurality of salient poles, each including a plurality of stator small teeth arranged to face the outer circumferential surface of the rotor via a gap. The stator small teeth have a predetermined stator tooth thickness and are arranged at a predetermined stator tooth pitch. The rotor small teeth have a predetermined rotor tooth thickness and are arranged at a predetermined rotor tooth pitch. A repulsion area ratio which is a ratio of an area of repulsion poles to a total area of all stator small teeth facing the rotor ranges from 0% to a predetermined threshold value.
摘要翻译：提供了一种混合式步进电动机，其包括：转子，其包括在其外周面上以等间距排列的多个转子小齿;以及定子，其包括多个凸极，每个包括多个定子小齿，经由间隙的转子的外周面。定子小齿具有预定的定子齿厚度并以预定的定子齿距设置。转子小齿具有预定的转子齿厚度并且以预定的转子齿距布置。作为面向转子的所有定子小齿的排斥极的面积与总面积的比的排斥面积比为0％〜规定的阈值。

3. 发明授权

US08482177B2 Torque rotor and method for manufacturing the same 有权
标题翻译：扭矩转子及其制造方法
公开(公告)号：US08482177B2
公开(公告)日：2013-07-09
申请号：US12748130
申请日：2010-03-26
申请人： Chae-soo Kim
发明人： Chae-soo Kim
IPC分类号： H02K1/27
CPC分类号： H02K15/12 , H02K15/03 , H02K37/18 , Y10T29/49012
摘要： Disclosed is a torque rotor and method for manufacturing the torque rotor having an effect of preventing inflow of plastic between a yoke and a magnet during a conventional plastic injection molding process for forming an assembling structure after assembling between the yoke and the magnet, thereby preventing degradation of a roundness of the magnet or damage of the magnet due to the difference in the temperature expansion coefficients, and preventing idle rotation of the yoke and the magnet relative to each other.
摘要翻译：公开了一种用于制造扭矩转子的扭矩转子和在轭和磁体之间组装之后形成组装结构的传统注塑成型过程中具有防止磁轭和磁体之间的塑料流入的效果的方法，从而防止了劣化由于温度膨胀系数的差异，磁体的圆度或磁体的损坏，并且防止磁轭和磁体相对于彼此的空转。

4. 发明申请

US20110175481A1 PERMANENT TYPE ROTARY MACHINE 审中-公开
标题翻译：永久型旋转机
公开(公告)号：US20110175481A1
公开(公告)日：2011-07-21
申请号：US12977856
申请日：2010-12-23
申请人： Kouji Kebukawa
发明人： Kouji Kebukawa
IPC分类号： H02K21/14 , H02K1/06
CPC分类号： H02K29/03 , H02K37/18 , H02K2201/06
摘要： The permanent magnet type rotary machine is capable of reducing cogging torque even if permanent magnets are displaced in the axial direction and which is capable of reducing production cost and increasing torque. At least a stator unit of a first phase out of two stator units, which are stacked with a phase difference of (360°/(2P)), is stacked m-th, from one end of the stack of the stator units, to face magnetic poles of one of the permanent magnets. The other stator unit of the second phase, whose excitation cycle is shifted ¼ cycle with respect to that of the stator unit of the first phase, is stacked ((nQ/2)+m)-th, from the one end of the stack, to face magnetic poles of another permanent magnet. Note that, P is number of the magnetic poles of the permanent magnet; m is an integer of (nQ/2) or less, and one or more; Q is an even number of two or more; and n is an integer of one or more, and the product of n×Q is an integer of four or more.
摘要翻译：永磁式旋转机械即使永久磁铁在轴向移动，也能够减少齿槽转矩，并且能够降低生产成本并提高扭矩。从定子单元的堆叠的一端向m层叠第二相的相位差（360°/（2P））的两个定子单元中的第一相的定子单元，一个永磁体的面磁极。相对于第一相的定子单元的励磁周期相对于第二相的定子单元的第二相的另一个定子单元从堆叠的一端堆叠（（nQ / 2）+ m）面对另一个永久磁铁的磁极。注意，P是永磁体的磁极数; m是（nQ / 2）以下的整数，以及一个以上的整数; Q是两个以上的偶数; n为1以上的整数，n×Q的乘积为4以上的整数。

5. 发明授权

US07755229B2 Hybrid step motor 失效
标题翻译：混合式步进电机
公开(公告)号：US07755229B2
公开(公告)日：2010-07-13
申请号：US12189154
申请日：2008-08-09
申请人： Chia-Ming Chang , Chia-Chun Wei
发明人： Chia-Ming Chang , Chia-Chun Wei
IPC分类号： H02K37/12 , H02K37/14
CPC分类号： H02K37/18
摘要： A hybrid step motor comprises a stator, a rotor assembly, a magnet and a mandrel. The rotor assembly and the magnet are mounted on the mandrel and are disposed in the stator. The proportion of a stator outer diameter to a stator inner diameter is 1:0.475 to 1:0.6. The proportion of the stator outer diameter to a rotor outer diameter is 1:0.5125 to 1:0.5875. The proportion of a first rotor thickness to a magnet thickness to a second rotor thickness is 0.236:0.09:0.236 optimally. The proportion of the rotor outer diameter to a magnet outer diameter is 0.54:0.45. By such arrangements, the optimal proportion is formed and the output efficiency is improved.
摘要翻译：混合步进马达包括定子，转子组件，磁体和心轴。转子组件和磁体安装在心轴上并设置在定子中。定子外径与定子内径的比例为1:0.475〜1:0.6。定子外径与转子外径的比例为1：0.5125〜1：0.5875。第一转子厚度与磁体厚度相对于第二转子厚度的比例最好为0.236:0.09:0.236。转子外径与磁体外径的比例为0.54：0.45。通过这种布置，形成最佳比例，提高输出效率。

6. 发明申请

US20100133929A1 PERMANENT-MAGNET ROTARY ELECTRIC MACHINE 有权
标题翻译：永磁旋转电机
公开(公告)号：US20100133929A1
公开(公告)日：2010-06-03
申请号：US12628325
申请日：2009-12-01
申请人： Masafumi SAKAMOTO , Yoji UNOKI , Toru KOBAYASHI
发明人： Masafumi SAKAMOTO , Yoji UNOKI , Toru KOBAYASHI
IPC分类号： H02K37/04 , H02K15/03
CPC分类号： H02K37/18 , Y10T29/49012
摘要： A permanent-magnet rotary electric machine preferably includes a stator and a rotor opposed thereto via an air gap. The stator includes a stator core having 4m (m is an integer equal to or larger than 2) main poles each having inductor teeth at a tip thereof. The rotor includes two rotor units adjacent to each other in the axial direction. Each rotor unit includes a pair of rotor magnetic poles and a permanent magnet arranged therebetween. The permanent magnets in the rotor are axially magnetized in opposite directions to each other. Each rotor magnetic pole has magnetic teeth on its outer periphery at a regular pitch. The rotor magnetic poles in each rotor unit are arranged such that the magnetic teeth of one rotor magnetic plate are offset by half a pitch from those of the other rotor magnetic pole, and the magnetic teeth of adjacent rotor magnetic poles are aligned with each other in the axial direction. The tooth pitch of the inductor teeth of each stator main pole is different from that of the magnetic teeth of the rotor magnetic pole to generate a fourth harmonic component of a permeance between the stator and the rotor zero.
摘要翻译：永磁旋转电机优选地包括定子和经由气隙与其相对的转子。定子包括具有4m（m是等于或大于2的整数）的定子铁心，每个主极在其尖端处具有电感齿。转子包括在轴向彼此相邻的两个转子单元。每个转子单元包括一对转子磁极和布置在其间的永磁体。转子中的永久磁铁在彼此相反的方向轴向磁化。每个转子磁极在其外周上以规则的间距具有磁齿。每个转子单元中的转子磁极被布置成使得一个转子磁性板的磁齿偏离另一个转子磁极的一半的间距，并且相邻的转子磁极的磁齿彼此对准轴向。每个定子主极的电感齿的齿距不同于转子磁极的磁齿的齿距，以产生定子和转子零点之间的磁导的四次谐波分量。

7. 发明授权

US07589440B2 Stepping motor 有权
标题翻译：步进电机
公开(公告)号：US07589440B2
公开(公告)日：2009-09-15
申请号：US11562692
申请日：2006-11-22
申请人： Shoji Oiwa , Masafumi Sakamoto , Toru Kobayashi , Masahiko Azegami , Yasuaki Motegi , Takaya Kato , Yasuo Matsuda , Kazuo Onishi , Naoyuki Kanamori , Tadashi Fukushima
发明人： Shoji Oiwa , Masafumi Sakamoto , Toru Kobayashi , Masahiko Azegami , Yasuaki Motegi , Takaya Kato , Yasuo Matsuda , Kazuo Onishi , Naoyuki Kanamori , Tadashi Fukushima
IPC分类号： H02K37/12
CPC分类号： H02K37/18 , H02K1/2713 , H02K16/02 , H02K2201/06 , H02K2213/03
摘要： A stepping motor includes: a stator having main magnetic poles each having small stator teeth on its tip, a core-back portion that connects outer portions of the poles, and windings wound around the poles; and two sets of rotor units that are arranged in an axial direction and face the stator with an air gap therebetween. Each rotor unit consists of two rotor cores that are separated in the axial direction and a magnet sandwiched thereby and magnetized in the axial direction. Each rotor core has small rotor teeth around its outer surface. The rotor cores of each rotor unit are deviated by ½ pitch of the small rotor teeth, and the two rotor units are arranged to make the magnetic polarities of the small rotor teeth of the adjacent two rotor cores identical. A magnet thickness Tm and a rotor core thickness Tc satisfy 0.25≦Tm/Tc≦0.45.
摘要翻译：步进电动机包括：定子，其顶端具有小的定子齿的主磁极，连接极的外部的芯部部分和绕磁极缠绕的绕组; 以及两组转子单元，其在轴向方向上布置并且与定子面对并具有气隙。每个转子单元由沿轴向分离的两个转子芯和由其夹在其中并在轴向上被磁化的磁体组成。每个转子芯在其外表面周围具有小的转子齿。每个转子单元的转子磁芯偏离小转子齿的1/2间距，并且两个转子单元布置成使相邻两个转子磁芯的小转子齿的磁极相同。磁体厚度Tm和转子芯厚度Tc满足0.25

8. 发明申请

US20090108713A1 Outer Rotor Type Hybrid Stepping Motor 审中-公开
标题翻译：外转子式混合式步进电机
公开(公告)号：US20090108713A1
公开(公告)日：2009-04-30
申请号：US12260660
申请日：2008-10-29
申请人： Yuji ENOMOTO , Kenji Miyata , Yasuaki Motegi , Shoji Ohiwa
发明人： Yuji ENOMOTO , Kenji Miyata , Yasuaki Motegi , Shoji Ohiwa
IPC分类号： H02K37/20
CPC分类号： H02K37/18
摘要： An outer rotor type hybrid stepping motor includes a stator, a rotor, a magnet disposed axially in the stator or the rotor, a stator core disposed inwardly from a gap between the stator and rotor, and a stator winding on the stator core. The rotor is disposed outside the gap. The magnet has an axial cross sectional area A. The residual magnetic flux density of the magnet is Br, and a total of magnetic fluxes exiting axially from the surface is A×Br. A gap average magnetic flux density, determined by dividing A×Br by the top cross sectional area small teeth poles on the rotor is Bg; pitch of the teeth is τ; and tooth width is Tw. Average magnetic flux density Bg, tooth pitch τ, and tooth width Tw are determined by the equation K=1/(π×Bg×Tw/τ), with the coefficient k in a range of 0.56-0.66 (1/T).
摘要翻译：外转子型混合式步进电机包括定子，转子，轴向设置在定子或转子中的磁体，从定子和转子之间的间隙向内设置的定子芯和定子芯上的定子绕组。转子设置在间隙之外。磁体具有轴向横截面积A.磁体的剩余磁通密度为Br，从表面轴向离开的总磁通量为AxBr。通过将AxBr除以转子上的顶部横截面小齿极确定的间隙平均磁通密度为Bg; 牙齿的间距是tau; 齿宽为Tw。通过公式K = 1 /（pixBgxTw /τ）确定平均磁通密度Bg，齿距T u和齿宽Tw，系数k在0.56-0.66（1 / T）的范围内。

9. 发明授权

US07508154B1 Integrated motor and resolver including absolute position capability 有权
标题翻译：集成电机和旋转变压器包括绝对位置能力
公开(公告)号：US07508154B1
公开(公告)日：2009-03-24
申请号：US11433931
申请日：2006-05-15
申请人： Donald P. Labriola, II
发明人： Donald P. Labriola, II
IPC分类号： G05B19/29
CPC分类号： H02K11/225 , H02K37/14 , H02K37/18 , H02K41/03 , H02P6/17
摘要： An integrated motor and position sensor achieves motion between a moving portion and a stationary portion by electrically energizing poles to interact with magnetics respectively on the moving and stationary portions. The position sensor includes a plurality of sensing coils placed to intercept the magnetic flux between a plurality of the poles and the magnetics. The outputs from these coils are fed to a microprocessor or DSP through an internal or external A/D converter. The microprocessor or DSP decodes the measured voltages using resolver strategies to produce a position, velocity or acceleration measurement.
摘要翻译：集成的电动机和位置传感器通过使电极通电并分别与磁性体相互作用而实现运动部分和静止部分之间的运动。位置传感器包括多个感测线圈，其被设置成截取多个极与磁体之间的磁通。这些线圈的输出通过内部或外部A / D转换器馈送到微处理器或DSP。微处理器或DSP使用分解器策略对测量的电压进行解码，以产生位置，速度或加速度测量。

10. 发明申请

US20080211354A1 Bearingless Step Motor 有权
标题翻译：无轴步进电机
公开(公告)号：US20080211354A1
公开(公告)日：2008-09-04
申请号：US11915082
申请日：2006-05-03
申请人： Seung Jong Kim , Du Jin Bach , Hosung Kong
发明人： Seung Jong Kim , Du Jin Bach , Hosung Kong
IPC分类号： H02K37/10
CPC分类号： H02K7/09 , F16C32/0425 , H02K37/18
摘要： There is provided a bearingless step motor in which a rotating shaft can rotate while rising from a main body by a magnetic force without using a mechanical bearing. The bearingless step motor comprises a stator including stator cores having winding portions and a rotor including a rotating shaft and rotor cores. The rotor rotates by a magnetic interaction between the rotor cores and the stator cores. A first permanent magnet is mounted to the rotor and a second permanent magnet is mounted to the stator. The first permanent magnet and the second permanent magnet are arranged so that a repulsive force is generated between magnetic poles. There is little power consumption for raising the rotating shaft and a complicated system for controlling the rise of the rotating shaft is unnecessary. Thus, the motor can be manufactured with a light and compact structure.
摘要翻译：提供了一种无轴承步进电动机，其中旋转轴可以通过磁力从主体上升而旋转，而不使用机械轴承。无轴承步进电动机包括定子，该定子包括具有绕组部分的定子铁心和包括转轴和转子铁心的转子。转子通过转子芯和定子芯之间的磁相互作用旋转。第一永磁体安装在转子上，第二永久磁铁安装在定子上。第一永磁体和第二永久磁铁配置成在磁极之间产生排斥力。提高旋转轴的功耗很小，并且不需要用于控制旋转轴的上升的复杂系统。因此，电动机可以用轻且紧凑的结构制造。

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