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    • 1. 发明申请
    • MULTI-STAGE TYPE INDUCTION MOTOR
    • 多级电感式电动机
    • WO1994000904A1
    • 1994-01-06
    • PCT/JP1993000859
    • 1993-06-24
    • FANUC LTDNAKAMURA, KoseiHAYASHI, YoshiyukiTAMAI, Takayuki
    • FANUC LTD
    • H02K16/00
    • H02K16/02H02K16/00
    • A high-output induction motor having its stator and rotor elongated without affecting grinding and die-casting while maintaining the flexural rigidity of the articles. The induction motor (10) includes two rotor cores (14) fixed to a spindle with a predetermined gap in an axial direction and two stator cores (24) encompassing the rotor cores (14) and fixed to a sleeve portion (22) of housing means (20). Each rotor core (14) includes a plurality of secondary conductors (36) extending in the axial direction and a pair of end rings (38) connecting each secondary conductor (36) at both ends of the rotor core (14) in the axial direction. Each stator core (24) includes a plurality of windings (26). These rotor cores (14) and stator cores (24) are shaped longer to such an extent that die-casting and grinding are not affected and the flexural rigidity of the articles is maintained.
    • 一种高输出感应电动机,其定子和转子伸长而不影响研磨和压铸,同时保持制品的抗弯刚度。 感应电动机(10)包括两个固定在心轴上的转子芯(14),其轴向具有预定的间隙,并且包括两个包围转子芯(14)的定子芯(24)并固定到壳体的套筒部分 (20)。 每个转子铁心(14)包括在轴向方向上延伸的多个次级导体(36)和一对端环(38),其在轴向上连接转子铁心(14)两端的每个次级导体(36) 。 每个定子铁心(24)包括多个绕组(26)。 这些转子铁心(14)和定子铁芯(24)的形状更长,使得压铸和研磨不受影响并且保持制品的抗弯刚度。
    • 3. 发明申请
    • CAGE ROTOR FOR HIGH-SPEED INDUCTION MOTOR
    • 用于高速感应电机的笼式转子
    • WO1994007298A1
    • 1994-03-31
    • PCT/JP1993001335
    • 1993-09-17
    • FANUC LTDNAKAMURA, KoseiHAYASHI, YoshiyukiKIMIJIMA, MasamiARIMATSU, Yohei
    • FANUC LTD
    • H02K17/16
    • H02K17/165Y10T29/49012
    • A cage rotor (10) comprises a laminated core (14) fixed to a rotor shaft (12); a secondary conductor (18) arranged in a plurality of through holes (16) made through the laminated core (14); a pair of end rings (20) connected to the secondary conductor (18) at both ends of the laminated core (14) in the axial direction; and a pair of reinforcing members (22 and 23) covering the end rings (20) respectively. The secondary conductor (18) and end rings (20) are integrally formed by casting, and connected to the laminated core (14) and reinforcing members (22 and 23). The reinforcing members (22 and 23) are made up of annular elements made of a highly rigid material, and are provided with the cylindrical walls (26 and 27) enclosing the cylindrical outer periphery of the end rings (20), and the multi-hole walls (28 and 29) sandwiched between the respective end rings (20) and the laminated core and having a plurality of holes (32) communicating with the through holes (16) of the laminated core (14), and end walls (30 and 31) which contact with the outer ends of the end rings (20) in the axial direction.
    • 笼式转子(10)包括固定在转子轴(12)上的层叠铁心(14)。 布置在通过层叠铁心(14)制成的多个通孔(16)中的次级导体(18); 一对在所述叠层铁芯(14)的轴向两端连接到所述次级导体(18)的端环(20); 以及分别覆盖端环(20)的一对加强构件(22和23)。 次级导体(18)和端环(20)通过铸造而一体地形成,并且连接到层压铁芯(14)和加强构件(22和23)。 加强构件(22和23)由高刚性材料制成的环形元件构成,并且设置有封闭端环(20)的圆柱形外周的圆柱形壁(26和27) 夹在相应的端环(20)和层叠铁芯之间的多个孔壁(28和29),并且具有与层叠铁心(14)的通孔(16)连通的多个孔(32)和端壁(30 和31),其沿着轴向与端环(20)的外端接触。
    • 6. 发明申请
    • ELECTRIC MOTOR PROVIDED WITH COIL COVERING MEANS
    • 电动马达提供线圈覆盖方式
    • WO1993021681A1
    • 1993-10-28
    • PCT/JP1993000484
    • 1993-04-15
    • FANUC LTDNAKAMURA, KoseiHAYASHI, YoshiyukiNUMAI, KazuhisaSEKI, Tomohiro
    • FANUC LTD
    • H02K03/38
    • H02K3/50H02K3/38
    • An electric motor (10) comprises a rotor (14) having a rotary shaft (12) and a stator (18) surrounding the rotor (14). The stator (18) is provided with a substantially cylindrical laminated stator core (22) having on its inner circumference a plurality of slots (24) extending in the axial direction. In each of the slots (24), a plurality of coils (26) including former-wound coils are arranged. Each of the coils (26) has coil sides (28) held in the slots (24) and coil ends (32) which project outward from the both axial ends (30) of the laminated stator core (22). Around each of the plural coil ends (32) wound is a cloth tape (34) made of a textile material having electrically insulating and heat resisting properties. The cloth tape (34) serves to function as a coil covering means which insulates and protects the coil ends (32). The cloth tape (34) can be wound easily and quickly around the plurality of the complicatedly arranged coil ends (32) as a whole in a bandaging manner.
    • 电动机(10)包括具有旋转轴(12)和围绕转子(14)的定子(18)的转子(14)。 定子(18)设置有基本上圆柱形的层叠定子芯(22),其内圆周上具有沿轴向延伸的多个槽(24)。 在每个槽(24)中,布置有包括前缠绕线圈的多个线圈(26)。 每个线圈(26)具有保持在槽(24)中的线圈侧(28)和从叠层定子铁心(22)的两个轴向端部(30)向外突出的线圈端部(32)。 围绕卷绕的多个线圈端部(32)中的每一个是由具有电绝缘和耐热性能的纺织材料制成的布带(34)。 布带(34)用作线圈覆盖装置,绝缘和保护线圈端部(32)。 布带(34)可以以绷带的方式整体地容易且快速地缠绕在多个复杂布置的线圈端部(32)周围。
    • 7. 发明申请
    • AC SPINDLE MOTOR AND METHOD OF CHANGING THE REVOLVING SPEED THEREOF
    • 交流电主轴及其改变速度的方法
    • WO1990006617A1
    • 1990-06-14
    • PCT/JP1989001204
    • 1989-11-29
    • FANUC LTDNAKAMURA, KoseiHAYASHI, YoshiyukiNUMAI, KazuhisaKIMIJIMA, Masami
    • FANUC LTD
    • H02K17/14
    • H02K17/14
    • An AC spindle motor (10) used for driving the spindle of a machine tool has a rotor (14) with an output shaft (12) that can be coupled to the spindle, and a stator (16) arranged to surround the rotor (14), the stator (16) having a laminated core (20) that forms a yoke and three-phase (U, V, W) stator windings accommodated in the winding grooves (22) of the laminated core (20) to form a revolving magnetic field. The windings (18u, 18v, 18w) of three-phase stator windings for forming the revolving magnetic field have: a first set of windings (C2, C4) served with a drive current in either a low-speed region where the revolving speed is smaller than a predetermined value and a high-speed region where the revolving speed is larger than the predetermined value; a second set of windings (C1, C3 served with a drive current in the low-speed region only; and electric contact means (S1 to S4 which so switch the circuit that the drive current is supplied to the first and second sets of windings (C2, C4, C1, C3) simultaneously during the low-speed operation to form a first plural-pole revolving magnetic field and that the drive current is supplied to the first set of windings (C2, C4) only during the high-speed operation to form a second plural-pole revolving magnetic field, the number of the second plural poles being smaller than the number of the first plural poles. The ampers turns of the windings and the number of poles are changed depending upon the low-speed operation and the high-speed operation.
    • 9. 发明申请
    • METHOD FOR MANUFACTURING CAGE ROTOR FOR INDUCTION MOTOR
    • 用于制造感应电动机的笼式转子的方法
    • WO1994019857A1
    • 1994-09-01
    • PCT/JP1994000253
    • 1994-02-18
    • FANUC LTDNAKAMURA, KoseiHAYASHI, YoshiyukiKIMIJIMA, MasamiARIMATSU, Yohei
    • FANUC LTD
    • H02K17/16
    • H02K17/165H02K15/0012Y10S164/10Y10T29/49012
    • This method is for manufacturing the cage rotor of an induction motor comprising a plurality of secondary conductors arranged in a plurality of through holes (16) of a laminated core (14), and a pair of end rings for connecting the secondary conductors to each other on both ends of the laminated core (14) in the axial direction. Each of a pair of reinforcing members (22) comprises a cylindrical wall (26), an annular multihole wall (28) having a plurality of holes (32) and extending radially inwardly from the edge of one end of the cylindrical wall (26), and an annular end wall (30) extending from the other edge of the cylindrical wall (26) radially inwardly and approximately in parallel with the multihole wall (28). Each of reinforcing members (22) is arranged on both end faces of the laminated core (14) in the axial direction, respectively in such a manner that each of them contacts each multihole wall (28) and the through holes (16) communicate with the holes (32). In this state, the laminated core (14) and the reinforcing members (22) are fixedly supported by a jig (34), and then, arranged in a mold (36). When casting, a molten metal is poured into a continuous cavity including the annular spaces in the reinforcing members (22), the holes (32) of the multihole wall (28), and the through holes (16) of the laminated core (14) through the central opening (31) of the end wall (30) of one reinforcing member (22a) arranged on the pouring gate (58) side. At the same time, the gas in the cavity is exhausted through the central opening of the end wall (30) of the other reinforcing member (22b).
    • 该方法用于制造感应电动机的笼式转子,该感应电动机包括布置在层叠铁心(14)的多个通孔(16)中的多个次级导体和用于将次级导体彼此连接的一对端环 在层叠铁心(14)的轴向两端。 一对加强构件(22)中的每一个包括圆柱形壁(26),具有多个孔(32)并从圆柱形壁(26)的一端的边缘径向向内延伸的环形多孔壁(28) ,以及从所述圆柱形壁(26)的另一个边缘径向向内并与所述多孔壁(28)大致平行延伸的环形端壁(30)。 每个加强构件(22)分别在轴向方向上分别布置在叠层铁芯(14)的两个端面上,使得它们各自接触每个多孔壁(28),并且通孔(16)与 孔(32)。 在这种状态下,层叠铁芯(14)和加强件(22)由夹具(34)固定地支撑,然后配置在模具(36)中。 在铸造时,将熔融金属倒入包括加强件(22)中的环形空间,多孔壁(28)的孔(32)和层叠铁芯(14)的通孔(16)的连续腔中 )通过设置在浇注口(58)侧的一个加强构件(22a)的端壁(30)的中心开口(31)。 同时,空腔中的气体通过另一加强构件(22b)的端壁(30)的中心开口排出。
    • 10. 发明申请
    • STRUCTURE FOR COOLING STATOR WINDING
    • 冷却定子绕组的结构
    • WO1992000627A1
    • 1992-01-09
    • PCT/JP1991000838
    • 1991-06-21
    • FANUC LTDNAKAMURA, KoseiKATSUZAWA, YukioHAYASHI, YoshiyukiMASUYA, Michi
    • FANUC LTD
    • H02K09/19
    • H02K5/128H02K9/197
    • High cooling efficiency is required for obtaining a motor small in size and high in output. For meeting such requirements, in a motor whose housing is divided into three parts, the front side part (14), central part (18), and the rear side part (16), a sheet-like resin separator (26) is arranged on the inner surface of a stator core (20) integrally formed with the central housing (18), and seal members (30) are clamped between both extended ends of said separator and annular projections (14a, 16a) of said front and rear housings (14, 16) so that the stator coil part is tightly sealed and the stator coil (40) is directly cooled with fluid.
    • 要获得小型,高输出电动机,需要高冷却效率。 为了满足这些要求,在壳体分为三部分的电动机中,前侧部分(14),中心部分(18)和后侧部分(16),布置有片状树脂分离器(26) 在与中心壳体(18)一体形成的定子芯(20)的内表面上,并且密封构件(30)被夹持在所述分离器的两个延伸端部和所述前后壳体的环形突起(14a,16a)之间 (14,16),使得定子线圈部分被紧密地密封并且定子线圈(40)被流体直接冷却。