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1. 发明公开

EP1496598A3 Claw-pole type stepping motor having radial dimension reduced without detriment to performance characteristic 有权
标题翻译： Klauenpolenschrittmotor mit reducierten radialen Dimensionen ohne Leistungseigenschaften Schaden
公开(公告)号：EP1496598A3
公开(公告)日：2006-10-25
申请号：EP04015643.2
申请日：2004-07-02
申请人： MINEBEA Co., Ltd.
发明人： Matsushita, Kunitake , Yamawaki, Takayuki , Nagata, Toshihiko , Harada, Naoyuki
IPC分类号： H02K5/00
CPC分类号： H02K37/12 , H02K1/145 , H02K5/04 , H02K5/15
摘要： A claw-pole type stepping motor comprises: a rotor which is shaped substantially cylindrical, and which has a rotary shaft at its radial center; and two stators which are shaped like a cup, each have at least one magnetic coil, are coupled to each other so as to rotatably house the rotor with their magnetic coils located respectively toward both axial end faces of the rotor, and which each have two pole tooth arrays magnetically connected to each other such that magnetic phase difference therebetween at tips of respective pole teeth is 180 degrees in terms of electrical angle, and in the motor thus structure, three pipes of aluminum go axially through the two stators so as to hold together the two stators.
摘要翻译：爪极式步进电动机包括：转子，其形状基本上为圆柱形，并且在其径向中心具有旋转轴; 并且具有至少一个电磁线圈的两个定子，其各自具有至少一个电磁线圈，以便以分别朝向转子的两个轴向端面的方式可旋转地容纳转子，并且每个定子具有两个磁极组彼此磁连接，使得各个极齿的尖端之间的磁相位在电角度上为180度，并且在电动机这样构造中，三个铝管沿轴向穿过两个定子以保持两个定子一起。

2. 发明授权

EP0703660B1 Stator assembly of rotary electric device and method of assembling the same 失效
标题翻译：旋转电气装置的定子组件和方法，用于组装该
公开(公告)号：EP0703660B1
公开(公告)日：1998-03-04
申请号：EP95306605.7
申请日：1995-09-20
申请人： MINEBEA CO.,LTD.
发明人： Matsushita, Kunitake , Yamawaki, Takayuki , Muramatsu, Kazuo , Sano, Hiroshi
IPC分类号： H02K37/14 , H02K15/02
CPC分类号： H02K1/145 , H02K15/022 , H02K37/14 , Y10T29/49009 , Y10T29/53143

3. 发明授权

EP1496598B1 Claw-pole type stepping motor having radial dimension reduced without detriment to performance characteristic 有权
标题翻译：爪极式步进电机的减小的径向尺寸，而不对性能特征的损害
公开(公告)号：EP1496598B1
公开(公告)日：2008-03-26
申请号：EP04015643.2
申请日：2004-07-02
申请人： MINEBEA Co., Ltd.
发明人： Matsushita, Kunitake , Yamawaki, Takayuki , Nagata, Toshihiko , Harada, Naoyuki
IPC分类号： H02K5/00
CPC分类号： H02K37/12 , H02K1/145 , H02K5/04 , H02K5/15

4. 发明公开

EP1496598A2 Claw-pole type stepping motor having radial dimension reduced without detriment to performance characteristic 有权
标题翻译： Kl en en en radial radial radial radial en en en en en en en en en en en en en en en
公开(公告)号：EP1496598A2
公开(公告)日：2005-01-12
申请号：EP04015643.2
申请日：2004-07-02
申请人： MINEBEA CO., LTD.
发明人： Matsushita, Kunitake , Yamawaki, Takayuki , Nagata, Toshihiko , Harada, Naoyuki
IPC分类号： H02K5/00
CPC分类号： H02K37/12 , H02K1/145 , H02K5/04 , H02K5/15
摘要： A claw-pole type stepping motor comprises: a rotor which is shaped substantially cylindrical, and which has a rotary shaft at its radial center; and two stators which are shaped like a cup, each have at least one magnetic coil, are coupled to each other so as to rotatably house the rotor with their magnetic coils located respectively toward both axial end faces of the rotor, and which each have two pole tooth arrays magnetically connected to each other such that magnetic phase difference therebetween at tips of respective pole teeth is 180 degrees in terms of electrical angle, and in the motor thus structure, three pipes of aluminum go axially through the two stators so as to hold together the two stators.
摘要翻译：爪极式步进电动机包括：转子，其形状基本上为圆柱形，并且在其径向中心具有旋转轴; 并且具有至少一个电磁线圈的两个定子，其各自具有至少一个电磁线圈，以便以分别朝向转子的两个轴向端面的方式可旋转地容纳转子，并且每个定子具有两个磁极组彼此磁连接，使得各个极齿的尖端之间的磁相位在电角度上为180度，并且在电动机这样构造中，三个铝管沿轴向穿过两个定子以保持两个定子一起。

5. 发明授权

EP0720168B1 Bearing installation in a floppy disk driver motor 失效
标题翻译：在软盘驱动器马达的存储设备
公开(公告)号：EP0720168B1
公开(公告)日：2004-10-20
申请号：EP95309501.5
申请日：1995-12-28
申请人： MINEBEA CO.,LTD.
发明人： Nagata, Toshihiko , Yamawaki, Takayuki , Sano, Hiroshi , Matsushita, Kunitake
IPC分类号： G11B19/20 , F16C17/08 , H02K7/08 , G11B21/08 , G11B5/55
CPC分类号： F16C19/163 , F16C17/08 , F16C19/12 , F16C2370/12 , F16C2380/27 , G11B19/2009

6. 发明公开

EP0871283A3 A pressurization device for the rotor of a motor 失效
标题翻译：压力袖带装置，用于电机的转子
公开(公告)号：EP0871283A3
公开(公告)日：2000-04-26
申请号：EP97117728.2
申请日：1997-10-14
申请人： MINEBEA CO., LTD.
发明人： Matsushita, Kunitake , Yamawaki, Takayuki , Sano, Hiroshi , Ezure, Hiroaki
IPC分类号： H02K37/22 , H02K5/167
CPC分类号： H02K37/22 , H02K5/1672
摘要： A cup shaped base 12 and a cap 13 are coupled, therein a coil spring 14 is accommodated to form a holder 11, and the holder is interposed between the bearing 3 of a rotor shaft 4 and a sleeve 5. Different from being directly mounted on the rotor shaft, since the base 12 is provisionally held on the rotor shaft, the operation efficiency at the time of assembling the motor is outstandingly increased.

7. 发明公开

EP0690549A1 An electrical rotating machine 失效
标题翻译： Elektrische drehende Maschine
公开(公告)号：EP0690549A1
公开(公告)日：1996-01-03
申请号：EP95304566.3
申请日：1995-06-28
申请人： MINEBEA CO., LTD.
发明人： Matsushita, Kunitake , Yamawaki, Takayuki , Matsuura, Hideki , Sano, Hiroshi
IPC分类号： H02K37/14 , H02K5/15 , H02K1/18
CPC分类号： H02K5/15 , H02K37/14
摘要： An object of the present invention is to provide a novel stator structure in an electrical rotating machine which has a stator to one end of which an end plate provided with a bearing is fixedly mounted and a rotor rotatably supported by the bearing, in which unwanted metal particles produced during welding of the end plate to the stator are prevented from entering between the stator and the rotor.
Positioning protrusions 61 are formed extending axially from the one end of the stator and positioning apertures 71 are provided in the end plate 65 for corresponding to and engaging with the positioning protrusions 61. Also, welding projections to be melted by resistance welding are arranged as located substantially on straight lines respectively extending from the rotation shaft 67 across the positioning protrusions 61 and on the outer side of the positioning protrusions 61. The end plate 65 is joined to the one end of the stator by welding at welding points 14. Unwanted metal particles produced during the resistance welding are blocked by the positioning protrusions 61 and will hardly flow towards the rotor 63.
摘要翻译：本发明的目的是提供一种在旋转电机中提供新颖的定子结构，其具有定子，其一端固定安装有轴承的端板和由轴承可旋转地支撑的转子，其中不需要的金属防止在端板焊接到定子时产生的颗粒进入定子和转子之间。定位突起61形成为从定子的一端轴向延伸，并且定位孔71设置在端板65中，用于对准并与定位突起61接合。而且，通过电阻焊接熔化的焊接突起被布置为位于基本上在从旋转轴67分别延伸穿过定位突起61和定位突起61的外侧的直线上。端板65通过在焊接点处焊接而接合到定子的一端。不需要的金属颗粒在电阻焊接期间产生的电极被定位突起61阻挡，并且几乎不向着转子63流动

8. 发明授权

EP0690549B1 An electrical rotating machine 失效
标题翻译：电气旋转机械
公开(公告)号：EP0690549B1
公开(公告)日：1998-01-07
申请号：EP95304566.3
申请日：1995-06-28
申请人： MINEBEA CO., LTD.
发明人： Matsushita, Kunitake , Yamawaki, Takayuki , Matsuura, Hideki , Sano, Hiroshi
IPC分类号： H02K37/14 , H02K5/15 , H02K1/18
CPC分类号： H02K5/15 , H02K37/14

9. 发明公开

EP0701069A1 Bearing system in a motor for FDD 失效
标题翻译： Lageranordnungfüreinen汽车eines Diskettenantriebs
公开(公告)号：EP0701069A1
公开(公告)日：1996-03-13
申请号：EP94306689.4
申请日：1994-09-12
申请人： MINEBEA CO.,LTD.
发明人： Nagata, Toshihiko , Yamawaki, Takayuki , Sano, Hiroshi , Matsushita, Kunitake
IPC分类号： F16C23/04 , H02K5/167
CPC分类号： F16C19/163 , F16C17/08 , F16C19/12 , F16C2380/27 , F16H2057/0213 , H02K7/081 , H02K2205/03 , H02K2213/09
摘要： An object of the present invention is to provide an improved bearing system in a motor for an FDD apparatus which is simple in the construction and maintained high in the ratational accuracy of a rotary shaft for optimizing write and read actions of th FDD apparatus.
A bearing system in a motor for FDD acccording to the present invention comprises: a protective cap (9) mounted to one side of the motor; (2) a first pivot bearing (11) arranged movable to and from the protective cap (9) in the axial direction of a rotary shaft (7); a thrust spring (15) provided for urging the first pivot bearing (11) in the axial direction of the rotary shaft (7); the rotary shaft (7) having a rotor (7) fixedly mounted thereto and rotatably supported at one end by the first pivot bearing (11) and at the other end by a second pivot bearing (23) mounted to a base for installation of the motor (2); and an aligment bushing (17) arranged through which the rotary shaft (7) of the motor (2) extends without direct contact and closely fitted into a positioning hole (22) provided in a plate (1) to which the motor (2) is secured. Accordingly, its construction is simple. The rotary shaft (7) remains not in direct contact with the alignment bushing (17) and its leadscrew (8) can thus rotate at a higher accuracy, eliminating intrinsic drawbacks of the FDD motor (2). In rotation, a thrust is ederted across the first pivot bearing (11) in the motor (2) to the rotary shaft (7) and such wearing properties as between the thrust spring (15) and the ball in the conventional system needs not to be accounted for. Also, the thrust will be lessened by a combination of the base portion (12) of the pivot bearing (11) and the protective cap (9) which both are made of low-cost synthetic resin.
摘要翻译：本发明的目的是提供一种用于FDD装置的电动机中的改进的轴承系统，该装置结构简单并且保持高旋转轴的定标精度，以优化FDD装置的写入和读取动作。根据本发明的用于FDD的电动机中的轴承系统包括：安装在电动机一侧的保护盖（9）（2）可沿旋转轴（7）的轴向方向移动到保护盖（9）和从保护盖（9）移动的第一枢转轴承（11）; 推力弹簧（15），设置用于在所述旋转轴（7）的轴向上推动所述第一枢转轴承（11）。旋转轴（7）具有固定地安装在其上的转子（7），并且在一端由第一枢转轴承（11）可旋转地支撑，另一端由安装到基座上的第二枢转轴承（23）安装电机（2）; 和分配衬套（17），电动机（2）的旋转轴（7）穿过该分配衬套延伸而不直接接触并紧密地装配到设置在电动机（2）的板（1）中的定位孔（22）中，是安全的。因此，其结构简单。旋转轴（7）保持不与对准衬套（17）直接接触，并且其丝杠（8）因此能够以更高的精度旋转，从而消除了FDD电动机（2）的内在缺陷。在旋转中，推力通过电动机（2）中的第一枢转轴承（11）旋转到旋转轴（7），并且在常规系统中的推力弹簧（15）和球之间的这种磨损特性不需要被计入。此外，通过枢转轴承（11）的基部（12）和保护盖（9）的组合，推力将减小，两者均由低成本的合成树脂制成。

10. 发明授权

EP0871283B1 A pressurization device for the rotor of a motor 失效
标题翻译：压力袖带装置，用于电机的转子
公开(公告)号：EP0871283B1
公开(公告)日：2002-12-18
申请号：EP97117728.2
申请日：1997-10-14
申请人： MINEBEA CO., LTD.
发明人： Matsushita, Kunitake , Yamawaki, Takayuki , Sano, Hiroshi , Ezure, Hiroaki
IPC分类号： H02K37/22 , H02K5/167
CPC分类号： H02K37/22 , H02K5/1672

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