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1. 发明专利

JP2006014578A Stepping motor 审中-公开
标题翻译：步进电机
公开(公告)号：JP2006014578A
公开(公告)日：2006-01-12
申请号：JP2005086531
申请日：2005-03-24
申请人： Minebea Co Ltd , ミネベア株式会社
发明人： HATA MASAHITO , SUZUKI YUZURU , FUKUSHIMA ATSUSHI , HARADA NAOYUKI
IPC分类号： H02K37/24 , H02K1/28 , H02K5/167 , H02K7/08 , H02K37/14 , H02K37/22
CPC分类号： H02K37/14 , H02K1/28 , H02K5/1672 , H02K37/22
摘要： PROBLEM TO BE SOLVED: To provide a stepping motor capable of preventing a motor function from being damaged, even under a high-temperature environment or under situations where frictional heat is generated during high-speed rotation.
SOLUTION: The stepping motor 1 has a constitution, where a magnet 6 is fixed to the outer peripheral face of a sleeve 4 mounted on an output shaft 3; a rotor 2, to which the magnet 6 is fixed, is arranged freely rotatable with respect to the inner periphery of a stator 10; a holder 21 formed, by loosely fitting a cup-shaped base 22 and a cap 23 and storing a coil spring 24 in its inside; the holder 21 is interposed between a bearing 9, which supports the output shaft 3, and the sleeve 4; the holder 21 is formed of a reinforced polyamide resin; and a member of proper slidability is interposed between the holder 21 and the bearing 9.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：即使在高温环境下或在高速旋转期间产生摩擦热的情况下，也可提供能够防止电动机功能受损的步进电动机。解决方案：步进电机1具有将磁体6固定在安装在输出轴3上的套筒4的外周面的构造; 固定有磁体6的转子2可相对于定子10的内周自由转动; 通过松散地装配杯形基座22和盖子23并将螺旋弹簧24储存在其内部而形成的支架21; 保持器21插入在支撑输出轴3的轴承9和套筒4之间; 支架21由增强聚酰胺树脂形成; 并且在保持器21和轴承9之间插入适当的滑动性的构件。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2005354858A Actuator 有权
标题翻译：执行器
公开(公告)号：JP2005354858A
公开(公告)日：2005-12-22
申请号：JP2004175389
申请日：2004-06-14
申请人： Minebea Co Ltd , ミネベア株式会社
发明人： SUZUKI YUZURU , HARADA NAOYUKI , MURAMATSU KAZUO
IPC分类号： H02K5/22 , H02K11/00 , H02K37/00 , H02K37/14
CPC分类号： H02K5/225 , H02K11/01 , H02K11/40
摘要： PROBLEM TO BE SOLVED: To provide an actuator that can prevent the electrification of static electricity and effect by external noise by a simple structure. SOLUTION: This actuator 1 is provided with a stator unit 3 structured with coils 6 wound with magnet wires and mounted in a pair of stator yokes 4a, 4b, 5a, 5b and a plurality of pole teeth 7a, 7b on the inside circumference of a pair of the stator yokes, a housing 21 mounted on the stator unit, a rotor unit 10 on the outside circumference of which a field magnet 11 is arranged and which is mounted freely rotatably spaced at prescribed intervals from the pole teeth, and an output shaft 13 which is mounted at the center portion of the rotor unit. In this actuator, a grounding terminal 30 that has conductivity and spring property is inserted between the housing 21 and one of the stator yokes 3a arranged near the housing so that one end side of the grounding terminal abuts the stator yokes and the other end side is connected to the terminal of a grounding wire formed on a printed circuit board 22. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供能够通过简单的结构防止静电带电和外部噪声影响的致动器。解决方案：该致动器1设置有定子单元3，该定子单元3由卷绕有电磁线的线圈6构成，并且安装在一对定子轭4a，4b，5a，5b和内侧的多个极齿7a，7b 一对定子轭的圆周，安装在定子单元上的壳体21，外周上设置有磁场磁体11的转子单元10，其以规定间隔与极齿自由旋转地安装，以及输出轴13，其安装在转子单元的中心部分。在该致动器中，具有导电性和弹簧特性的接地端子30插入在壳体21和布置在壳体附近的一个定子轭3a之间，使得接地端子的一端侧抵靠定子轭，另一端侧连接到形成在印刷电路板22上的接地线的端子。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2005033977A Structure of claw-pole stepping motor 审中-公开
标题翻译： CLAW-POLE步进电机的结构
公开(公告)号：JP2005033977A
公开(公告)日：2005-02-03
申请号：JP2003316948
申请日：2003-09-09
申请人： Minebea Co Ltd , ミネベア株式会社
发明人： MATSUSHITA KUNITAKE , YAMAWAKI TAKAYUKI , NAGATA TOSHIHIKO , HARADA NAOYUKI
IPC分类号： H02K37/14
摘要： PROBLEM TO BE SOLVED: To provide a structure of a claw-pole stepping motor in which the labor of assembling work can be reduced by decreasing the number of components and the motor size can be reduced.
SOLUTION: In the claw-pole stepping motor where one substantially cylindrical rotor having a central shaft is surrounded by two cup-shaped stators from the opposite end faces of the rotor, each stator has at least one magnetic coil and two sets of pole teeth group coupled magnetically with a magnetic phase difference of 180° electric angle at the forward end of pole teeth. Both stators are bonded while facing each other, and two sets of pole teeth group are coupled magnetically by the bearing of the central shaft.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：为了提供能够通过减少部件数量而减少组装作业的劳动的爪极步进电机的结构，并且可以减小电动机的尺寸。解决方案：在具有中心轴的一个基本圆柱形的转子由转子的相对端面被两个杯形定子围绕的爪极步进电机中，每个定子具有至少一个电磁线圈和两组极齿组在磁极前端具有180°电角度的磁相位差磁耦合。两个定子相互贴合，两组极齿组由中心轴的轴承磁耦合。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2001286090A MOTOR TERMINAL STRUCTURE 失效
公开(公告)号：JP2001286090A
公开(公告)日：2001-10-12
申请号：JP2000094002
申请日：2000-03-30
申请人： MINEBEA CO LTD
发明人： SUZUKI YUZURU , MATSUSHITA KUNITAKE , SHIBATA KOICHI , HARADA NAOYUKI , OOYASHIKI TAKETOSHI , FUJITANI SAKAE , NAKAMATA HIROTO
IPC分类号： H01F5/00 , H01F5/04 , H02K3/52 , H02K5/22 , H02K15/00 , H02K37/14
摘要： PROBLEM TO BE SOLVED: To provide a motor terminal structure by which safety concerning environmental pollution is improved and a motor coil can be connected to an external apparatus with sure and excellent workability. SOLUTION: A terminal 23 is composed integrally of a magnet wire treatment part 20 to which a magnet wire 4 of a coil 6 is connected, a drawing-out part 21 which is connected to an external circuit and a bobbin attachment part 22 which is attached to an outer surface of a bobbin 5 with a pressure. The magnet wire 4 is connected to the drawing-out part 21 (terminal 23) by plasma welding. As the terminal treatment of a motor 1 is practiced by welding (plasma welding) which does not need solder containing lead, resources can be saved and, further, safety concerning environmental pollution can be improved without using lead. As the bobbin attachment part 22 is pushed into a hole formed in the outer surface of the bobbin 5, the orientation and position of the terminal 23 can be fixed, so that the stability can be improved.

5. 发明专利

JPH11146617A BRUSHLESS DC MOTOR STRUCTURE 失效
公开(公告)号：JPH11146617A
公开(公告)日：1999-05-28
申请号：JP30677197
申请日：1997-11-10
申请人： MINEBEA CO LTD
发明人： SUZUKI YUZURU , OOYASHIKI TAKETOSHI , HARADA NAOYUKI , NISHIO TAICHI
IPC分类号： H02K1/14 , H02K1/27 , H02K3/18 , H02K21/12 , H02K21/14 , H02K29/00
摘要： PROBLEM TO BE SOLVED: To provide a motor structure with high performance and small electromagnetic noise using inexpensive magnets, without using a lamination structure in a rotating axial direction. SOLUTION: The motor 1 is provided with a rotor 7 involving a rotor magnet 16 supported on a substrate 2 so as to rotate freely, and a stator consisting of a plurality of salient poles 24 which is disposed at the outer periphery of the rotor 7 and retains a stator coil constituted by winding a magnet wire. The surface where the rotor 7 and the respective salient poles 24 of the stator face each other is formed at two surfaces of a cylindrical surface with a rotating axial center centered and a flat surface orthogonal to the rotating center 9, and the rotor magnet 16 involves the magnetic poles of a circumferential magnet 17 at a surface facing the cylindrical surface with the rotating center 9 of the salient pole 24 centered and a surface facing the surface orthogonal to the rotating axial center.

6. 发明专利

JPH06335219A ELECTRIC MOTOR FOR FLOPPY DISK DRIVE 失效
公开(公告)号：JPH06335219A
公开(公告)日：1994-12-02
申请号：JP13909193
申请日：1993-05-17
申请人： MINEBEA CO LTD
发明人： SUZUKI YUZURU , FUJITANI SAKAE , HARADA NAOYUKI
IPC分类号： G11B25/04 , H02K29/00 , H02K29/08
摘要： PURPOSE:To prevent leakage flux by providing a yoke member for passing flux from both magnets between a plurality of permanent magnets provided at a rotor. CONSTITUTION:A ring-shaped magnetic shield plate 30 is engaged to the outside of a rotating magnetic pole 9 and driving current is applied from an electric motor drive circuit provided on a substrate 1 to a stator coil winding 22 to generate a rotating magnetic field at a stator magnetic pole 21, thus rotating a rotating disc 7 by the mutual operation with the exciting flux from the rotating magnetic pole 9. Then, the exciting flux from a permanent magnet reaches an S pole of the other permanent magnet through the magnetic shield plate 30 provided inside the circumferential part of the rotar from the N magnetic pole. Then, it passes through the opposing stator magnetic pole 21 via a gap from the N pole of the permanent magnet, passes through a yoke part 31 at a root and the stator magnetic pole 21 opposing the permanent magnet, and then returns to the S pole via the gap, thus drastically reducing the magnetic reluctance of a flux passage route and at the same time reducing leakage flux.

7. 发明专利

JP2001238377A ROTATING ELECTRIC MACHINE 失效
公开(公告)号：JP2001238377A
公开(公告)日：2001-08-31
申请号：JP2000048099
申请日：2000-02-24
申请人： MINEBEA CO LTD
发明人： SUZUKI YUZURU , FUJITANI SAKAE , OOYASHIKI TAKETOSHI , HARADA NAOYUKI
IPC分类号： H02K1/14 , H02K1/18 , H02K3/52 , H02K21/12 , H02K29/00
摘要： PROBLEM TO BE SOLVED: To reduce leakage flux due to magnetic discontinuity and improve electromagnetic conversion efficiency of a radial gap type rotating electric machine, without having to form holes for positioning and fixing a salient pole at a ring (hereinafter referred to as 'outer-periphery case of rotating electric machine') and to improve the appearance and the quality, by preventing the lower end of the salient pole from being exposed to the external surface of the machine, in a divided armature for the machine, which is formed by using a plurality of pairs of divided salient poles and a ring jointing these salient poles magnetically and mechanically. SOLUTION: This radial gap type rotating electric machine has a field magnetic pole, formed of a rotatably supported permanent magnet and an armature assembly, involving a plurality of pairs of divided salient poles arranged radially relative to a rotating shaft, so as to oppose the field pole via a micro-clearance. The armature assembly has a first ring, formed of a soft magnetic material, accommodating a plurality of pairs of salient poles and a second ring, formed of the soft magnetic material, accommodating the first ring.

8. 发明专利

JP2000224784A STATOR STRUCTURE OF HIGH-SPEED ROTATING MOTOR 失效
公开(公告)号：JP2000224784A
公开(公告)日：2000-08-11
申请号：JP2621099
申请日：1999-02-03
申请人： MINEBEA CO LTD
发明人： SUZUKI YUZURU , FUJITANI SAKAE , OOYASHIKI TAKETOSHI , HARADA NAOYUKI
IPC分类号： H02K1/12 , H02K1/14 , H02K15/02 , H02K21/12 , H02K21/24
摘要： PROBLEM TO BE SOLVED: To provide a structure of a high-performance, high speed rotating motor at a low cost, capable of stabilizing the position of a rotor by preventing the rotor from being lifted during high-speed rotation, and attaining high efficiency of a magnetic circuit and little heat generation by achieving low power consumption even during high-speed rotation by gaining stability of a motor position by preventing a rotor from floating at a high speed rotation. SOLUTION: This high-speed rotating motor, formed by winding a yoke forming ribbon constituted of a soft magnetic steel sheet where a plurality of salient pole forming parts are connected with the stator yoke 3 at the magnetic connecting part, is provided with a stator where a coil 5 formed by winding a magnet wire around a salient pole 6 of a stator yoke 3 made of a soft magnetic material is inserted, a rotor provided with a shaft 10 which holds a magnetic field magnet 7 made of a permanent magnet at an end face so as to face the salient poll 6 of the stator with an air gap and is set so to be the rotational center at its center, and a base plate 1 fitted with a bearing 11 rotatably holding a rotor at the center of the stator.

9. 发明专利

JP2000184627A TOROIDAL CORE ACTUATOR 失效
公开(公告)号：JP2000184627A
公开(公告)日：2000-06-30
申请号：JP35187498
申请日：1998-12-10
申请人： MINEBEA CO LTD
发明人： SUZUKI YUZURU , FUJITANI SAKAE , ISHII TAKESHI , HARADA NAOYUKI
IPC分类号： H02K1/06 , H02K3/46 , H02K21/14 , H02K26/00 , H02K37/14
摘要： PROBLEM TO BE SOLVED: To increase the wiring density of a stator coil and improve the ease of wiring work by disposing a plurality of phase separation members, consisting of non-magnetic material uniformly so as to be spaced from each other on the peripheral surface of a hollow cylindrical core, and providing a winding for a wiring area partitioned by the phase separation member. SOLUTION: This actuator, whose number of magnetic poles of the magnet 1 of a rotor part is two, is provided with an upper coil (A-phase coil) 4A and a lower coil (B-phase coil) 4B at a stator part, wherein phase separation members 10a, 10b are disposed with a positional relation of 180 deg. on the peripheral surface of a core 3. The phase separation members 10a, 10b have effects of being capable of preventing breakage of winding as a bank of winding start/ end for coils 4A, 4B and improving winding density. The phase separation members 10a, 10b are as many as the magnetic poles of the magnet 1, and formed out of a non-magnetic material.

10. 发明专利

JP2000179730A ACTUATOR DEVICE WITH VALVE 失效
公开(公告)号：JP2000179730A
公开(公告)日：2000-06-27
申请号：JP35341498
申请日：1998-12-11
申请人： MINEBEA CO LTD
发明人： SUZUKI YUZURU , FUJITANI SAKAE , HARADA NAOYUKI
IPC分类号： F02D11/10 , F16K1/22 , F16K31/04 , H02K1/06 , H02K21/14 , H02K26/00 , H02K37/14
摘要： PROBLEM TO BE SOLVED: To regulate a flow rate in low costs and with high accuracy. SOLUTION: In a device formed in such a constitution that a valve is rotationally driven by a torque corresponding to an output current value of an actuator driving circuit on the basis of an angle command value θr inputted into a control circuit to regulate a flow rate passing in a pipe, an actuator is composed of a rotor which is rotatably supported to a rotary shaft and which consists of a permanent magnet 200 having two N and S poles, and a stator wound around a soft magnetic body made cylindrical core 201 disposed on a rotor magnet outer peripheral part through a fine air gap in the radial direction and the rotor magnet. Phase separation materials made of a non-magnetic material of 10 degrees and less at a center angle, are arranged on a circumference of the core so as to form an angle of about 180 degrees geometrically, and two couples of coils 202A, 202B which are independently from each other serving the core as a center are wound with nearly equal density in zones on core circumferences divided by two phase separation materials.

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