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    • 3. 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 。
    • 4. 发明授权
    • Ac generator for vehicle
    • 交流发电机
    • US06885129B1
    • 2005-04-26
    • US10130950
    • 2000-09-26
    • Atsushi OohashiYoshihito AsaoKatsumi Adachi
    • Atsushi OohashiYoshihito AsaoKatsumi Adachi
    • H02K1/24H02K9/06H02K19/22H02K3/04
    • H02K19/22H02K1/243H02K9/06
    • 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 portions of a field rotor in an axial direction, and enabling high-speed and low-speed electromagnetic noise to be reduced by prescribing dimensional relationships in the stator and 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 (Lc/Lp) between an axial length Lc of the laminated core and an axial length Lp of the Lundell-type core is set to a range from 0.55 to 0.70.
    • 本发明的目的是提供一种车辆用交流发电机,其通过使定子的叠层铁芯和励磁转子的磁轭部沿轴向重叠而实现高输出,并且能够通过以下方式降低高速和低速电磁噪声 规定定子和励磁转子的尺寸关系。 在该车用交流发电机中,隆德尔型铁心的圆筒部的外径R 2与隆德尔型铁心的外径R 1之间的比(R 2 / R 1)为0.50〜 0.54,层叠铁芯的轴向长度Lc与隆德尔型铁芯的轴向长度Lp之比(Lc / Lp)设定在0.55〜0.70的范围。