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    • 4. 发明授权
    • AC generator for vehicle
    • 车用交流发电机
    • US06700296B1
    • 2004-03-02
    • US10130945
    • 2002-05-24
    • Atsushi OohashiYoshihito AsaoKatsumi Adachi
    • Atsushi OohashiYoshihito AsaoKatsumi Adachi
    • H02K122
    • H02K1/243H02K19/22
    • An object of the present invention is to provide an automotive alternator achieving high output by overlapping a laminated core of a stator and yoke portion of a field rotor in an axial direction, and enabling electromagnetic noise to be reduced by prescribing dimensional relationships in the field rotor. In this automotive alternator, a ratio (R2/R1) between an outer radius R2 of a cylindrical portion of a Lundell-type core and an outer radius R1 of the Lundell-type core is set to a range from 0.50 to 0.54, and a ratio (Tr/Tp) between an axial overlap length Tr between the laminated core of the stator and the yoke portions of the Lundell-type core and an axial length Tp of the yoke portions is set to a range greater than or equal to 0.2.
    • 本发明的目的是提供一种通过将定子的叠层铁芯和励磁转子的磁轭部分沿轴向重叠来实现高输出的车辆用交流发电机,并且通过在现场转子中规定尺寸关系来实现电磁噪声的降低 在该车用交流发电机中,隆德尔型铁芯的圆筒部的外径R2与隆德尔型铁芯的外径R1之间的比率(R2 / R1)设定为0.50〜0.54的范围, 定子的层叠铁芯与隆德尔型铁心的轭部之间的轴向重叠长度Tr与轭部的轴向长度Tp之间的比率(Tr / Tp)设定为大于或等于0.2的范围 。
    • 5. 发明授权
    • Automotive alternator
    • 汽车交流发电机
    • US06700239B2
    • 2004-03-02
    • US09769408
    • 2001-01-26
    • Yoshihito AsaoKatsumi Adachi
    • Yoshihito AsaoKatsumi Adachi
    • H02K900
    • H02K9/06H02K1/325H02K5/22
    • An alternator includes a rear-end fan which is constructed so as to have greater capacity than a front-end fan. The construction is such that a flow rate in a front-end ventilation pathway in which a cooling air flow enters through front-end air intake apertures is deflected centrifugally by the front-end fan and is then expelled through front-end air discharge apertures is greater than a flow rate in a rear-end ventilation pathway in which a cooling air flow enters through rear-end air intake apertures is deflected centrifugally by the rear-end fan and is then expelled through rear-end air discharge apertures.
    • 交流发电机包括后端风扇,其构造为具有比前端风扇更大的容量。 该结构使得前端通风路径中的冷却空气流通过前端进气口进入的流量被前端风扇离心地偏转,然后通过前端排气孔排出 大于后端通风路径中的流量,其中冷却空气流通过后端进气孔进入的后端通过后端风扇离心地偏转,然后通过后端排气孔排出。
    • 7. 发明授权
    • Alternator
    • 发电机
    • US06501205B1
    • 2002-12-31
    • US09660472
    • 2000-09-12
    • Yoshihito AsaoKatsumi AdachiAkira Morishita
    • Yoshihito AsaoKatsumi AdachiAkira Morishita
    • H02K300
    • H02K9/06H02K3/12H02K3/28H02K3/345H02K3/50H02K2203/09
    • An alternator includes a rotor for forming north-seeking (N) and south-seeking (S) poles about a rotational circumference, a stator having a stator core disposed facing the rotor and a polyphase stator winding installed in the stator core, and a bracket supporting the rotor and the stator, wherein the stator core includes a laminated iron core formed with a number of slots extending axially at a predetermined pitch in a circumferential direction, the polyphase stator winding includes a number of winding sub-portions in each which a long strand of wire is wound so as to alternately occupy an inner layer and an outer layer in a slot depth direction within the slots at intervals of a predetermined number of slots, the strand of wire folding back outside the slots at axial end surfaces of the stator core to form turn portions, and the turn portions align in a circumferential direction to constitute coil end groups.
    • 交流发电机包括绕旋转圆周形成北向(N)和南(S)极的转子,具有面向转子的定子芯的定子和安装在定子铁芯中的多相定子绕组,以及支架 支撑转子和定子,其中定子芯包括形成有沿圆周方向以预定间距轴向延伸的多个槽的层叠铁芯,多相定子绕组包括多个绕组子部分,每个绕组子部分具有长的 线的缠绕以便以预定数量的槽的间隔交替占据槽内的槽深度方向上的内层和外层,所述线的股线在定子的轴向端表面处折叠到槽的外侧 芯部形成转弯部,转向部在圆周方向上对齐以构成线圈端部组。
    • 8. 发明授权
    • Alternator
    • 发电机
    • US06455972B1
    • 2002-09-24
    • US09643873
    • 2000-08-23
    • Yoshihito AsaoKatsumi AdachiAkira Morishita
    • Yoshihito AsaoKatsumi AdachiAkira Morishita
    • H02K1900
    • H02K9/06H02K3/12H02K3/28H02K3/345H02K3/50H02K2203/09
    • An alternator includes a rotor for forming north-seeking (N) and south-seeking (S) poles about a rotational circumference, a stator having a stator core disposed facing the rotor and a polyphase stator winding installed in the stator core, and a bracket supporting the rotor and the stator, wherein the stator core comprises a laminated iron core formed with a number of slots extending axially at a predetermined pitch in a circumferential direction, the polyphase stator winding comprises a number of winding sub-portions in each which a long strand of wire is wound so as to alternately occupy an inner layer and an outer layer in a slot depth direction within the slots at intervals of a predetermined number of slots, the strand of wire folding back outside the slots at axial end surfaces of the stator core to form turn portions, the turn portions align in a circumferential direction to constitute coil end groups at both axial end portions of the stator core, and the turn portions constituting the coil end groups at both axial end portions of the stator core are formed in the generally identical shape in a circumferential direction.
    • 交流发电机包括绕旋转圆周形成北向(N)和南(S)极的转子,具有面向转子的定子芯的定子和安装在定子铁芯中的多相定子绕组,以及支架 支撑转子和定子,其中定子芯包括层叠铁芯,其形成有沿圆周方向以预定间距轴向延伸的多个槽,多相定子绕组包括多个绕组子部分,每个绕组子部分具有长的 线的缠绕以便以预定数量的槽的间隔交替占据槽内的槽深度方向上的内层和外层,所述线的股线在定子的轴向端表面处折叠到槽的外侧 芯部形成转弯部,转向部在圆周方向上对齐以在定子芯的两个轴向端部处构成线圈端组,并且转向部构造 在定子芯的两个轴向端部处的线圈端组在圆周方向上形成为大致相同的形状。