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31. 发明申请

US20110089781A1 ROTOR FOR MOTOR AND MOTOR 失效
标题翻译：电机和电机转子
公开(公告)号：US20110089781A1
公开(公告)日：2011-04-21
申请号：US12908127
申请日：2010-10-20
申请人： Hidekazu YONEYAMA
发明人： Hidekazu YONEYAMA
IPC分类号： H02K1/28
CPC分类号： H02K37/14 , H02K1/2733 , H02K1/30
摘要： A rotor for motor may include a rotation shaft, a permanent magnet structured in a tube-like shape and fixed to an outer peripheral side of the rotation shaft, and a sleeve which is structured in a tube-like shape, disposed between an outer peripheral face of the rotation shaft and an inner peripheral face of the permanent magnet, and press-fitted and fixed to the outer peripheral face of the rotation shaft. The sleeve is retreated from an end part of the permanent magnet on one side in an axial direction to the other side in the axial direction so that a first ring-shaped recessed part is formed between the rotation shaft and the permanent magnet and the rotation shaft and the permanent magnet are fixed to each other with a first adhesive in the first ring-shaped recessed part. The rotor may be applied to a motor, preferably to a stepping motor.
摘要翻译：电动机的转子可以包括旋转轴，构造成管状形状并固定到旋转轴的外周侧的永久磁体，以及构造成管状形状的套筒，设置在外周旋转轴的表面和永磁体的内周面，并被压入并固定到旋转轴的外周面。套筒从轴向一侧的永磁体的端部向轴向另一侧退避，从而在旋转轴与永久磁铁之间形成第一环形凹部，旋转轴并且永磁体通过第一粘合剂彼此固定在第一环形凹部中。转子可以施加到电动机，优选地应用于步进电动机。

32. 发明申请

US20110050009A1 STEPPING MOTOR 有权
标题翻译：步进电机
公开(公告)号：US20110050009A1
公开(公告)日：2011-03-03
申请号：US12916865
申请日：2010-11-01
申请人： Hisashi FUKUZAWA
发明人： Hisashi FUKUZAWA
IPC分类号： H02K37/14
CPC分类号： H02K37/14 , H02K1/145
摘要： A stepping motor may include a rotor having a drive magnet and a stator having a drive coil wound in a tube shape and disposed on the drive magnet. The stator may include a first yoke, a second yoke, a plurality of first pole teeth provided in the first yoke, and a plurality of second pole teeth provided in the second yoke. The plurality of the first pole teeth and the second pole teeth may be alternately disposed in a circumferential direction of the rotor.
摘要翻译：步进电动机可以包括具有驱动磁体和定子的转子，该转子具有缠绕在管状并且设置在驱动磁体上的驱动线圈。定子可以包括第一磁轭，第二磁轭，设置在第一磁轭中的多个第一极齿和设置在第二磁轭中的多个第二极齿。多个第一极齿和第二极齿可以沿转子的圆周方向交替设置。

33. 发明授权

US07898123B2 Permanent magnet type rotary machine 有权
标题翻译：永磁式旋转机
公开(公告)号：US07898123B2
公开(公告)日：2011-03-01
申请号：US11642680
申请日：2006-12-21
申请人： Hiroaki Usui
发明人： Hiroaki Usui
IPC分类号： H02K37/00 , H02K37/12 , H02K37/14
CPC分类号： H02K1/145 , H02K37/14
摘要： The permanent magnet type rotary machine is capable of reducing cogging torque caused by variation of amounts of magnetic flux in magnetic circuits. The permanent magnet type rotary machine comprises: a stator constituted by stator units, which are coaxially stacked and in each of which a coil is sandwiched between stator yokes; and a rotor including a permanent magnet having magnetic poles, which respectively face magnetic pole teeth of the stator yokes, the rotor being rotatably supported by an output shaft. The stator units in one phase is divided into n (n is an integer one or more), and magnetic centers of at least one pair of the magnetic pole teeth of the adjacent stator yokes, which are vertically arranged, are shifted with a prescribed phase difference so as to mutually cancel their cogging torque.
摘要翻译：永磁式旋转机械能够减少由磁路中的磁通量的变化引起的齿槽转矩。永磁式旋转机械包括：由定子单元构成的定子，它们同轴地堆叠，每个定子线圈夹在定子轭之间; 以及包括分别面对定子轭的磁极齿的磁极的永磁体的转子，转子由输出轴可旋转地支撑。一相中的定子单元被分成n（n是一个或多个整数），垂直排列的相邻定子轭的至少一对磁极齿的磁心以规定的相位移动以便相互抵消它们的齿槽转矩。

34. 发明申请

US20110043074A1 STEPPING MOTOR 有权
标题翻译：步进电机
公开(公告)号：US20110043074A1
公开(公告)日：2011-02-24
申请号：US12845112
申请日：2010-07-28
申请人： Takeshi MATSUNO , Yoshiya YAMAMURA , Hiroaki ITAHASHI , Shigeki MIYAJI , Yukihiro TERADA
发明人： Takeshi MATSUNO , Yoshiya YAMAMURA , Hiroaki ITAHASHI , Shigeki MIYAJI , Yukihiro TERADA
IPC分类号： H02K1/12
CPC分类号： H02K37/14 , H02K1/145 , H02K2213/03
摘要： A stepping motor includes a rotor assembly and a stator assembly including two stator units axially coupled to each other. The two stator units each include a pair of yokes which each include a base portion and a plurality of pole teeth extending from the base portion and which are disposed such that each of the pole teeth of one yoke and each of the pole teeth of the other yoke are arranged alternately in the circumferential direction. The pole teeth are shaped symmetric and each include a pair of slant sides inclined so as to become closer to each other with an increase of distance from the base portion, and the slant sides of adjacent pole teeth are located close to each other wherein a magnetic pole gap between the adjacent pole teeth pole teeth is about 0.2 times as large as the thickness of the pole teeth.
摘要翻译：步进马达包括转子组件和定子组件，该定子组件包括彼此轴向耦合的两个定子单元。两个定子单元各自包括一对轭，每个轭包括基部和从基部延伸的多个极齿，并且设置成使得一个轭的每个极齿和另一个轭的每个极齿轭在圆周方向上交替布置。极齿形状对称，并且每个包括一对倾斜侧面，其倾斜使得随着距离基部的距离的增加而彼此更接近，并且相邻极齿的倾斜侧面彼此靠近定位，其中磁性相邻极齿极齿之间的极间距离是极齿的厚度的约0.2倍。

35. 发明授权

US07825556B2 Stepping motor 有权
标题翻译：步进电机
公开(公告)号：US07825556B2
公开(公告)日：2010-11-02
申请号：US11979818
申请日：2007-11-08
申请人： Yuzuru Suzuki , Takayuki Yamawaki , Hiroyuki Furusaki , Masaki Kagawa
发明人： Yuzuru Suzuki , Takayuki Yamawaki , Hiroyuki Furusaki , Masaki Kagawa
IPC分类号： H02K37/12
CPC分类号： H02K5/1672 , H02K21/145 , H02K37/14
摘要： A stepping motor includes: a stator which includes a cup-like first (outer) yoke having a plurality of notches formed at its bottom plate, a second (inner) yoke, and a bobbin having a coil wound therearound and housed in the annular hollow space formed by the first and second yokes; and a pair of bearings each of which includes a hollow-cylindrical main body and a flange structure having a plurality of protrusions, and is attached to the stator such that the protrusions engage with the notches of the first yoke thereby preventing the bearing from rotating relative to the first yoke, and such that the protrusions make contact with a flange of the bobbin thereby precisely positioning the bearing relative to the first yoke with respect to the axial direction, which prohibits any portions of the bearing from protruding axially outwardly beyond the bottom plate of the first yoke.
摘要翻译：步进电动机包括：定子，其包括杯形的第一（外）轭，其具有形成在其底板上的多个凹口，第二（内）轭和绕线圈，线圈缠绕在其周围并容纳在环形空心由第一和第二轭形成的空间; 以及一对轴承，每个轴承包括中空圆柱形主体和具有多个突起的凸缘结构，并且附接到定子，使得突起与第一磁轭的凹口接合，从而防止轴承相对旋转并且使得突起与筒管的凸缘接触，从而相对于轴向方向相对于第一轭精确地定位轴承，这阻止了轴承的任何部分轴向向外突出超出底板的第一个轭。

36. 发明授权

US07781924B2 Electromagnetic driving apparatus 有权
标题翻译：带定子的电机，支撑旋转轴转子
公开(公告)号：US07781924B2
公开(公告)日：2010-08-24
申请号：US11459813
申请日：2006-07-25
申请人： Masao Mizumaki
发明人： Masao Mizumaki
IPC分类号： H02K37/14 , H02K1/12 , H02K7/09 , H02K37/00 , H02K37/04 , H02K37/10 , H02K37/12 , H02K37/16
CPC分类号： H02K37/14 , H02K1/145
摘要： A drive apparatus which is small in size, short in axial length, low in cost, and high in output. A stepping motor as the driving apparatus includes a first coil, a second coil, a magnet, and a rotor comprised of a core and a rotary shaft. First through fourth outer magnetic pole portions are opposed to the outer peripheral surface of the magnet with a predetermined gap between them. The first and the second coils are disposed adjacent to the magnet in an axial direction of the rotary shaft and disposed at respective ends of the rotary shaft. The first and second outer magnetic pole portions are inserted inside the first and second coils, respectively. As viewed in the circumferential direction of the magnet, the third and fourth outer magnetic pole portions are disposed close to the first and second outer magnetic pole portions, respectively.
摘要翻译：一种尺寸小，轴向长度短，成本低，输出量高的驱动装置。作为驱动装置的步进电机包括第一线圈，第二线圈，磁体和由芯和旋转轴组成的转子。第一至第四外磁极部与磁体的外周面相对，在它们之间具有预定的间隙。第一和第二线圈沿着旋转轴的轴向与磁体相邻设置，并且设置在旋转轴的相应端。第一和第二外部磁极部分别分别插入第一和第二线圈内。从磁铁的圆周方向看，第三和第四外部磁极部分别设置在第一和第二外部磁极部分附近。

37. 发明授权

US07679251B2 Stepping motor 有权
标题翻译：步进电机
公开(公告)号：US07679251B2
公开(公告)日：2010-03-16
申请号：US11792532
申请日：2005-09-12
申请人： Takanori Ohkawa , Takashi Ida , Osamu Kodaira
发明人： Takanori Ohkawa , Takashi Ida , Osamu Kodaira
IPC分类号： H02K1/27 , H02K37/14
CPC分类号： H02K1/2733 , H02K37/14
摘要： A stepping motor is disclosed which is capable of obtaining desired driving torque without sacrificing magnetic properties of a magnet with respect to a stator, reducing inertia mass of a rotor by decreasing a use amount of a magnet material, and thereby, can enhance driving performance including control responsiveness. In a stepping motor in which a plurality of stators (20A, 20B) around which coils (21) are wound are placed in an axial direction of a motor shaft (31), a rotor (30) is rotatably provided with a space at inner periphery sides of these stators (20A, 20B), the motor shaft (31) is placed in a center of the rotor (30), and the rotor (30) includes a rotor body (33) placed at an outer periphery of the motor shaft and a cylindrical magnet (32) integrally provided on an outer periphery of the rotor body and magnetized to form multipoles in a circumferential direction, the stepping motor is characterized in that the cylindrical magnet (32) has at least its inner peripheral surface bulged inward in a diameter direction so that a portion corresponding to a central portion in the above described axial direction of each of the coils (21) becomes thicker than the other portions.
摘要翻译：公开了一种步进电机，其能够在不牺牲磁体相对于定子的磁特性的情况下获得期望的驱动转矩，通过减少磁体材料的使用量来减小转子的惯性质量，从而可以提高驱动性能，包括控制反应能力。在卷绕线圈（21）的多个定子（20A，20B）沿电动机轴（31）的轴向配置的步进电动机中，转子（30）在内部可旋转地设置有空间这些定子（20A，20B）的周边，电动机轴（31）位于转子（30）的中心，转子（30）包括设置在电动机的外周的转子体（33）轴和一体地设置在转子体的外周并被磁化以在圆周方向上形成多极的圆柱形磁体（32），步进电机的特征在于，圆柱形磁体（32）至少具有向内凸出的内周表面使得与每个线圈（21）的上述轴向方向上的中心部分相对应的部分比其他部分变厚。

38. 发明授权

US07635931B2 Stepping motor 失效
标题翻译：步进电机
公开(公告)号：US07635931B2
公开(公告)日：2009-12-22
申请号：US12000415
申请日：2007-12-12
申请人： Yuzuru Suzuki , Takayuki Yamawaki , Masaki Kagawa , Hiroyuki Furusaki
发明人： Yuzuru Suzuki , Takayuki Yamawaki , Masaki Kagawa , Hiroyuki Furusaki
IPC分类号： H02K37/14
CPC分类号： H02K37/14 , H02K16/00
摘要： In a stepping motor including two stators and a rotor having two magnets, three dimensional relations, specifically a relation of Lm/Ls, another relation of d/2Lm, and still another relation d/D, are optimally determined while satisfying their respective ranges: 0.35≦Lm/Ls≦0.45; 0.77≦d/2Lm≦1.10; and d/D≦0.45, where Lm is the axial dimension of the magnet, Ls is the axial dimension of the stator, d is the outer diameter of the magnet, and D is the outer diameter of the stator, whereby a space for accommodating a sufficient number of coil turns is secured maximally in the stator, and the inertia and the cogging torque of the rotor are reduced maximally, which leads to producing the highest possible torque at a high rotation speed range required.
摘要翻译：在包括两个定子和具有两个磁体的转子的步进电机中，三维关系，具体地Lm / Ls的关系，d / 2Lm的另一关系和另一个关系d / D在最佳确定的同时满足它们各自的范围： 0.35 <= Lm / Ls <= 0.45; 0.77 <= d / 2Lm <= 1.10; 和d / D <= 0.45，其中Lm是磁体的轴向尺寸，Ls是定子的轴向尺寸，d是磁体的外径，D是定子的外径，在定子中最大限度地确保容纳足够数量的线圈，并且最大限度地减小转子的惯性和齿槽转矩，这导致在所需的高转速范围内产生最高可能的扭矩。

39. 发明申请

US20090284100A1 Motor that reduces magnetic interference 有权
标题翻译：降低磁干扰的电机
公开(公告)号：US20090284100A1
公开(公告)日：2009-11-19
申请号：US12232409
申请日：2008-09-17
申请人： David Huang
发明人： David Huang
IPC分类号： H02K1/12
CPC分类号： H02K5/225 , H02K1/145 , H02K3/525 , H02K37/14
摘要： A motor includes a housing formed of a first shell and a second shell, a stator, which is formed of a first yoke, a second yoke, a connecting device and two coils. The first yoke and the second yoke each comprise a terminal holder mounting portion, a race and a plurality of pole pawls respectively extended from the race. The race of the first yoke has the race of the first yoke kept apart from the race of the second yoke at a distance to reduce magnetic interference, the connecting device having a terminal holder fastened to terminal holder mounting portions of the first yoke and second yoke of the stator and a plurality of metal terminals installed in the terminal holder, the coils respectively set between the first yoke and the first shell and between the second yoke and the second shell and respectively electrically connected to the metal terminals, and a rotor formed of a transmission shaft and magnets and inserted through the first yoke and the second yoke and rotatable relative to the stator.
摘要翻译：电动机包括由第一壳体和第二壳体形成的壳体，由第一磁轭，第二磁轭，连接装置和两个线圈形成的定子。第一轭和第二轭各自包括分别从座圈延伸的端子座安装部分，座圈和多个杆爪。第一磁轭的座圈具有与第二磁轭的距离远离一段距离的距离减小磁干扰的连接装置，其具有固定到第一磁轭和第二磁轭的端子架安装部分的端子架所述线圈分别设置在所述第一磁轭与所述第一壳体之间以及所述第二磁轭与所述第二壳体之间，并且分别与所述金属端子电连接，所述转子由传动轴和磁体，并且通过第一磁轭和第二磁轭插入并相对于定子可旋转。

40. 发明授权

US07592725B2 Motor and manufacturing method therefor 失效
标题翻译：电机及其制造方法
公开(公告)号：US07592725B2
公开(公告)日：2009-09-22
申请号：US11656794
申请日：2007-01-23
申请人： Shinichi Utsumi
发明人： Shinichi Utsumi
IPC分类号： H02K5/00
CPC分类号： H02K1/145 , H02K37/14
摘要： A motor includes a motor case having an opening part and a stator core disposed in an inside of the motor case. The motor case may include a bottom face part, sidewall parts extended on the opening part side from an outer periphery of the bottom face part, and cutout parts formed by cutting the sidewall parts. Non-contact parts are formed in an outer peripheral edge of the stator core so that the stator core does not contact with an inner face of the motor case at the non-contact parts, i.e., with a burr formed at the cutout part of the motor case. Alternatively, the motor case may be formed as an outer stator core and the stator core may be formed as an inner stator core.
摘要翻译：电动机包括具有设置在电动机壳体的内部的开口部和定子铁心的电动机壳体。马达壳体可以包括底面部分，从底面部分的外周延伸到开口部分侧的侧壁部分，以及通过切割侧壁部分形成的切口部分。非接触部分形成在定子铁心的外周边缘中，使得定子铁心在非接触部分处不与电动机壳体的内表面接触，即，在形成在该接触部分的切口部分处的毛刺电机箱。或者，电动机壳体可以形成为外部定子铁心，并且定子铁心可以形成为内部定子铁芯。

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