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1. 发明公开

EP0163747A1 ROTOR FOR SYNCHRONOUS ELECTRIC MOTOR 失效
标题翻译：转子电机同步电动机。
公开(公告)号：EP0163747A1
公开(公告)日：1985-12-11
申请号：EP85900173.7
申请日：1984-12-05
申请人： FANUC LTD.
发明人： KAWADA, Shigeki , AMEMIYA, Yoichi , SOGABE, Masatoyo , IWAMATSU, Noboru
IPC分类号： H02K1/27
CPC分类号： H02K21/14
摘要： A rotor for a synchronous electric motor includes a plurality of first magnetic poles (19) which are formed by disposing a plurality of permanent magnets on the outer peripheral surface of a yoke (18) secured to a rotatable motor shaft (14), the magnets being spaced in the circumferential direction. Second magnetic poles (18a) radially project from the yoke (18) adjacent to the first magnetic poles (19) in such a manner that two adjacent first and second magnetic poles are paired. The magnetic pole surface configuration of each of the second magnetic poles (18a) is determined such that the magnetic flux distribution obtained by a pair of first and second magnetic poles (19), (18a) is substantially equivalent to the sinusoidal distribution in the magnetic effect of the magnetic flux passed by the armature winding for each phase on a stator (11).

2. 发明授权

EP0059763B1 D.C. GENERATOR TYPE NON-CONTACT SPEED SENSING DEVICE 失效
标题翻译：直流发电机型非接触式速度传感装置
公开(公告)号：EP0059763B1
公开(公告)日：1987-09-16
申请号：EP81902594.1
申请日：1981-09-17
申请人： FANUC LTD.
发明人： KOZAI, Yoshinori , AMEMIYA, Yoichi , IWAMATSU, Noboru
IPC分类号： G01P3/44 , G01P3/46 , G01P3/48 , H02K29/08
CPC分类号： G01P3/487 , G01P3/46 , G01P3/465

3. 发明公开

EP0166790A1 ALTERNATING CURRENT SERVO MOTOR AND METHOD OF MANUFACTURING THE SAME 失效
标题翻译： AC伺服电机及其制造方法。
公开(公告)号：EP0166790A1
公开(公告)日：1986-01-08
申请号：EP85900499.6
申请日：1984-12-28
申请人： FANUC LTD.
发明人： KAWADA, Shigeki , AMEMIYA, Yoichi , SOGABE, Masatoyo , IWAMATSU, Noboru
IPC分类号： H02K1/18 , H02K5/04 , H02K15/02
CPC分类号： H02K5/00 , H02K15/14 , H02K15/16 , Y10T29/49009
摘要： An AC servo motor employs as a portion of a motor housing the outer peripheral surface (21b) of a stator core (21) formed by laminating thin steel sheets (22). A pair of brackets (25, 26) are respectively attached to the front and rear ends of the stator core (21) Bearing members (27, 28) are respectively provided on the brackets (25, 26). In the manufacture, after the brackets (25, 26) have been firmly secured to the stator core (21), bearing mounting bores (25a, 26a) and motor mounting surfaces (25b, 25c) are machined so as to be concentric and perpendicular with reference to the axial bore (21 a) and the outer peripheral surface (21 b) of the stator core (21). Thus, a rotor (29) is assembled through the bearing members (27, 28) such as to possess highly accurate concentricity with respect to the stator core (21). In addition, the perpendicular relation between the motor mounting surfaces (25b, 25c) and the output shaft (29a) is ensured.

4. 发明公开

EP0116649A1 METHOD FOR MANUFACTURING A STATOR FOR MOTORS 失效
标题翻译：用于生产马达定子。
公开(公告)号：EP0116649A1
公开(公告)日：1984-08-29
申请号：EP83902694.5
申请日：1983-08-24
申请人： FANUC LTD.
发明人： KAWADA, Shigeki , AMEMIYA, Yoichi , SOGABE, Masatoyo , IWAMATSU, Noboru
IPC分类号： H02K1/18
CPC分类号： H02K1/185 , H02K5/15
摘要： Through-holes (11, 12, 13....) are formed at predetermined positions in a stator core (1), reinforcing bars (51, 52, 53,...) are each inserted into holes in fixing structures (81,82, 83,...) by welding to the stator core, the core is sandwiched from both sides between a front bracket (31) and a rear bracket (32), front and rear threaded bolts (91, 92, 93,...), (61, 62, 63,...) passing through the front and rear brackets, respectively, are provided at either end of the reinforcing bars and engage with threads, thereby fixing together the stator core, the front bracket and the rear bracket. The heat dissipating action of the stator core can be improved by this structure, and the size of the motor reduced.

5. 发明公开

EP0067226A1 D.C. GENERATOR TYPE NON-CONTACT SPEED SENSING DEVICE 失效
标题翻译： VORRICHTUNG ZUM KONTAKTLOSEN ABTASTEN DER GESCHWINDIGKEIT MITTELS GLEICHSTROMGENERATOR。
公开(公告)号：EP0067226A1
公开(公告)日：1982-12-22
申请号：EP81902593.3
申请日：1981-09-16
申请人： FANUC LTD.
发明人： KOZAI, Yoshinori , AMEMIYA, Yoichi , IWAMATSU, Noboru
IPC分类号： G01P3/44 , G01P3/46 , G01P3/48 , H02K29/02 , H02K21/00
CPC分类号： H02K21/14 , G01P3/465 , G01P3/487 , H02K1/2713
摘要： In a D.C. generator type non-contact speed sensing device comprising a cylindrical magnet-rotor with N and S poles alternating around the periphery and a stator with windings wound confronting the rotor, the non-uniformity in the magnetization of the magnet causes the non-uniformity in the magnetic flux density in the vicinity of the surface of the pole, so that the electromotive force induced in the windings fluctuates, resulting in an inaccurate speed sensing. To overcome the problem, a rotor is constructed out of a permanent magnet (11) with magnetic poles aligned with the axial direction and yoke members (12), (13) each of which is composed of a plane portion (15) in contact with the pole-surface of the magnet and an elongated portion (16) normal to the plane portion and of such a form as covers the peripheral surface of the side-portion of the magnet. Thus, the magnetic flux density over the surface of the yoke is made uniform and the fluctuation in the electromotive force induced in the windings, caused by the non-uniformity in magnetization, is eliminated.
摘要翻译：直流发电机型非接触式速度传感器包括由永磁体（11）构成的转子，其具有与轴向方向和轭构件对准的磁极。每个磁轭由与磁体极面接触的平面部分（15）和垂直于平面部分的细长部分（16）构成，并且覆盖该磁体的侧面部分的周边表面磁铁。因此，磁轭表面上的磁通密度均匀，消除了由磁化不均匀引起的在绕组中感应的电动势的波动。

6. 发明授权

EP0163747B1 ROTOR FOR SYNCHRONOUS ELECTRIC MOTOR 失效
标题翻译：同步电动机转子
公开(公告)号：EP0163747B1
公开(公告)日：1990-04-04
申请号：EP85900173.7
申请日：1984-12-05
申请人： FANUC LTD.
发明人： KAWADA, Shigeki , AMEMIYA, Yoichi , SOGABE, Masatoyo , IWAMATSU, Noboru
IPC分类号： H02K1/27
CPC分类号： H02K21/14
摘要： A rotor for a synchronous electric motor includes a plurality of first magnetic poles (19) which are formed by disposing a plurality of permanent magnets on the outer peripheral surface of a yoke (18) secured to a rotatable motor shaft (14), the magnets being spaced in the circumferential direction. Second magnetic poles (18a) radially project from the yoke (18) adjacent to the first magnetic poles (19) in such a manner that two adjacent first and second magnetic poles are paired. The magnetic pole surface configuration of each of the second magnetic poles (18a) is determined such that the magnetic flux distribution obtained by a pair of first and second magnetic poles (19), (18a) is substantially equivalent to the sinusoidal distribution in the magnetic effect of the magnetic flux passed by the armature winding for each phase on a stator (11).

7. 发明公开

EP0300042A1 STRUCTURE OF ROTOR OF SYNCHRONIZING AC SERVO MOTOR 失效
标题翻译： ROTORSTRUKTUR BEI EINEM SYNCHRONISIERUNGSWECHSELSTROMSERVOMOTOR。
公开(公告)号：EP0300042A1
公开(公告)日：1989-01-25
申请号：EP88900850.4
申请日：1988-01-18
申请人： FANUC LTD
发明人： IWAMATSU, Noboru , HAYASHI, Yoshiyuki
IPC分类号： H02K1/27
CPC分类号： H02K1/2773
摘要： Structure of a rotor which is designed to reduce the slot ripple so that a synchronizing AC servo motor is allowed to turn smoothly. Namely, two rotor elements (30, 30') are arranged in parallel with their angular positions being deviated from each other in the rotational direction by a mechanical angle (θ) that corresponds to the half-wavelength of a slot ripple wave that generates in the rotor of the conventional construction. There can thus be provided a rotor structure in which the slot ripple waves generated by the rotor elements (30, 30') cancel each other.
摘要翻译：转子具有设置在圆周上的八个磁极，每个磁极包括与轴向平行布置的两个总体元件（30,30'）。每个转子元件（30）由铁芯（16）和磁体（18）组成，并且它们的角位置在旋转方向上彼此偏离与槽波纹波的半波长相对应的角度（θ）。当转子旋转时，两个这样的转子元件产生彼此相位相差180度的槽纹波，这完全被抵消。此外，可以在轴向方向上组合两个以上的转子元件以产生相同的效果。

8. 发明授权

EP0128961B1 SYNCHRONOUS MOTOR 失效
标题翻译：同步电机
公开(公告)号：EP0128961B1
公开(公告)日：1987-11-11
申请号：EP84900113.6
申请日：1983-12-21
申请人： FANUC LTD.
发明人： KAWADA, Shigeki , AMEMIYA, Yoichi , SOGABE, Masatoyo , IWAMATSU, Noboru
IPC分类号： H02K21/12
CPC分类号： H02K21/14
摘要： A synchronous motor comprises a stator (41) provided with a number of armature windings corresponding to the number of phases o/ of a power source, and S slots (42) housing the armature windings; and a rotor (31) provided with the same number of field poles (32) as poles P of the rotor (31), and magnets (33) for exciting the field poles (32). When the number of slots per pole and phase, S/Po/, is expressed by an irreducible fraction m/n, the circumferential length (W) of the part of each of the field poles (32) facing the slots (42) of the stator (41) is selected to be an integral multiple of 1/n of the pitch (L) of the slots (42) of the stator (41), to reduce the amount of slot ripple and speed irregularities when the motor is lightly loaded when used as a servo motor.

9. 发明公开

EP0128961A1 SYNCHRONOUS MOTOR 失效
标题翻译： SYNCHRONMOTOR。
公开(公告)号：EP0128961A1
公开(公告)日：1984-12-27
申请号：EP84900113.6
申请日：1983-12-21
申请人： FANUC LTD.
发明人： KAWADA, Shigeki , AMEMIYA, Yoichi , SOGABE, Masatoyo , IWAMATSU, Noboru
IPC分类号： H02K21/12
CPC分类号： H02K21/14
摘要： A synchronous motor comprises a stator (41) provided with a number of armature windings corresponding to the number of phases φ of a power source, and S slots (42) housing the armature windings; and a rotor (31) provided with the same number of field poles (32) as poles P of the rotor (31), and magnets (33) for exciting the field poles (32). When the number of slots per pole and phase, S/Pφ, is expressed by an irreducible fraction m/n, the circumferential length (W) of the part of each of the field poles (32) facing the slots (42) of the stator (41) is selected to be an integral multiple of I/n of the pitch (L) of the slots (42) of the stator (41), to reduce the amount of slot ripple and speed irregularities when the motor is lightly loaded when used as a servo motor.

10. 发明公开

EP0115538A1 DEVICE FOR COUPLING SERVO MOTOR TO ROTARY DETECTOR 失效
标题翻译： ZUSAMMENBAU EINES SERVOMOTORS MIT EINEM ROTIERENDEN POSITIONSDETEKTOR。
公开(公告)号：EP0115538A1
公开(公告)日：1984-08-15
申请号：EP83902294.4
申请日：1983-07-26
申请人： FANUC LTD.
发明人： KAWADA, Shigeki , AMEMIYA, Yoichi , SOGABE, Masatoyo , IWAMATSU, Noboru , OKUDA, Kanemasa
IPC分类号： H02K11/00 , G01P1/04 , G01P3/44
CPC分类号： H02K7/20 , G01P1/02 , H02K11/21
摘要： In a device for coupling a servo motor (10) which has a motor housing (12) and an output shaft (20) rotatably supported by the housing, to a rotary detector (32) which has a detector housing (34) and an input shaft (36) rotatably supported by the housing (34), the output shaft and the input shaft are rigidly clamped coaxially by a shaft clamping bolt (56). The motor housing and the detector housing are coupled by an annular leaf spring (64) extending around the circumferences thereof, concentrically with the output and input shafts. The spring is attached by a plurality of housing clamping bolts (66) to both of the motor and detector housings, thereby allowing a relative axial displacement of the motor and detector housings while suppressing any relative rotational displacement.
摘要翻译：在具有电动机壳体（12）的伺服电动机（10）和由壳体可旋转地支撑的输出轴（20）的装置中，连接到具有检测器壳体（34）和输入端的旋转检测器（32）由壳体（34）可旋转地支撑的轴（36），输出轴和输入轴由轴夹紧螺栓（56）同轴地夹紧。电动机壳体和检测器壳体通过围绕其圆周延伸的环形板簧（64）联接，与输出轴和输入轴同心。弹簧通过多个壳体夹紧螺栓（66）附接到电动机和检测器壳体两者，从而允许电动机和检测器壳体的相对轴向位移，同时抑制任何相对的旋转位移。

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