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61. 发明专利

JP2000358348A AC GENERATOR FOR VEHICLE 失效
公开(公告)号：JP2000358348A
公开(公告)日：2000-12-26
申请号：JP2000107935
申请日：2000-04-10
申请人： DENSO CORP
发明人： UMEDA ATSUSHI , SHIGA TSUTOMU , KUSASE ARATA
IPC分类号： H02K1/18 , H02K3/04 , H02K3/46 , H02K19/22
摘要： PROBLEM TO BE SOLVED: To provide an AC generator that can transform high space factor coefficient to the other output improving factors to attain an high output. SOLUTION: A stator 2 included in this generator 1 sets a ratio of the internal diameter Di to an outside diameter Do to 76% or more and sets a slot accommodation space factor to 50% or more respectively. In the space factor of 50% or more, since an output peak exists in the particular value of the internal/external diameter ratio Di/Do of 7% or more, the space factor is increased and the internal/external diameter ratio is set to an adequate value to realize high output power.

62. 发明专利

JP2000092801A ALTERNATOR FOR VEHICLE AND MANUFACTURE OF STATOR USED THEREFOR 失效
公开(公告)号：JP2000092801A
公开(公告)日：2000-03-31
申请号：JP20004899
申请日：1999-07-14
申请人： DENSO CORP
发明人： UMEDA ATSUSHI , SHIGA TSUTOMU , KUSASE ARATA , MATSUBARA SHINICHI , NAKA YOSHIO
IPC分类号： H02K1/18 , H02K3/04 , H02K15/02 , H02K15/12 , H02K19/22
摘要： PROBLEM TO BE SOLVED: To secure the insulating properties of insulating layers inserted into the slots of a stator core in a good state by reducing the breakage of the insulating layer. SOLUTION: The stator of an alternator for vehicle is formed by inserting conductor segments 33 formed in U-shapes into the slots 35 of the stator core 32 of the stator in the same direction as the punching direction of the core 32 after insulators 34 are inserted into the slots 35 and connecting the end sections of the segments 33 inserted into different slots 35 to each other. Since the segments 33 are inserted into the slots 35 in the same direction as the extending direction (punching direction) of the burrs of each steel sheet 36 of the core 32, the breakage of the insulators 34 are prevented.

63. 发明专利

JP2000092758A AC GENERATOR FOR CAR AND MANUFACTURE OF STATOR USED THEREFOR 失效
公开(公告)号：JP2000092758A
公开(公告)日：2000-03-31
申请号：JP20004999
申请日：1999-07-14
申请人： DENSO CORP
发明人： UMEDA ATSUSHI , SHIGA TSUTOMU , KUSASE ARATA , MATSUBARA SHINICHI , NAKA YOSHIO
IPC分类号： H02K1/18 , H02K3/04 , H02K15/10 , H02K19/22
摘要： PROBLEM TO BE SOLVED: To provide an AC generator for a car, in which excellent insulating properties can be ensured by preventing the displacement of an insulator, and the manufacture of a stator used for the AC generator. SOLUTION: The stator of the AC generator for the car is formed in such a manner that insulators 34 are inserted into the slots 45 of a stator core 32, conductor segments 33 formed in an approximately U shape are put in the opposite direction to the direction of the punching of the stator core 32, and the end sections of the conductor segments 33 inserted into the different slots 35 are joined and connected mutually. Since the conductor segments 33 are put in the opposite direction to the direction (the direction of punching) of the extension of the burrs of each steel plate sheet 36 of the stator core, the displacement of the insulators 34 is prevented.

64. 发明专利

JP2000050553A ALTERNATOR FOR VEHICLE 失效
公开(公告)号：JP2000050553A
公开(公告)日：2000-02-18
申请号：JP13564799
申请日：1999-05-17
申请人： DENSO CORP
发明人： UMEDA ATSUSHI , SHIGA TSUTOMU , KUSASE ARATA , ISHIDA HIROSHI , NAKA YOSHIO , MATSUBARA SHINICHI
IPC分类号： H02K3/34 , H02K3/04
摘要： PROBLEM TO BE SOLVED: To provide an alternator for vehicles, wherein the insulators included in its stator have good workabilities and their axial shift and partial breaks hardly occur. SOLUTION: In the stator of an alternator for vehicles, after inserting insulators 34 into slots 35 of a stator core 32, inserting into the slots 35 conductor segments formed into a nearly U-shaped way, the end portions of the conductor segments inserted into the different slots 35 are jointed connectively to each other to form the stator. Forming on the side of inserting thereinto the conductor segments folded portions 36 of one-end portions of the insulators 34, the positionings of the insulators 34 are performed by the folded portions 36, when inserting the insulators 34 into the slots 35.

65. 发明专利

JPH11155270A VEHICLE AC GENERATOR 失效
公开(公告)号：JPH11155270A
公开(公告)日：1999-06-08
申请号：JP12184298
申请日：1998-04-14
申请人： DENSO CORP
发明人： UMEDA ATSUSHI , SHIGA TSUTOMU , KUSASE ARATA
IPC分类号： H02K19/22
摘要： PROBLEM TO BE SOLVED: To provide a vehicle AC generator which is small in size, high in power and low in noise. SOLUTION: A vehicle AC generator 1 has a lander-type rotor 3 which supplies cooling air to a stator 2 provided outside the rotor 3. A stator 32 has a stator core 32 stator windings provided in a plurality of slots 35 formed in the stator core 32. The stator windings include 2 sets of 3-phase windings, whose electrical angles are different from each other by 30 degrees and are connected so as to composite the outputs of the windings into 3-phase output. Coil ends 31 are formed on the end parts in the axial direction of the stator core 32. The coil ends 31 are arranged neatly separately from each other, and all the windings are cooled uniformly by the cooling air supplied by the rotation of the rotor 3.

66. 发明专利

JPH1175346A ALTERNATING CURRENT GENERATOR FOR VEHICLE 失效
公开(公告)号：JPH1175346A
公开(公告)日：1999-03-16
申请号：JP4904098
申请日：1998-02-13
申请人： DENSO CORP
发明人： UMEDA ATSUSHI , SHIGA TSUTOMU , KUSASE ARATA
IPC分类号： H02K9/06 , H02K3/24
摘要： PROBLEM TO BE SOLVED: To flow a cooling medium to an axial direction efficiently, by arranging a plurality of electric conductors circularly, and inclining them in the forward direction, with respect to the flowing direction of a cooling medium and the rotating direction of a rotor inside a group of coil ends. SOLUTION: Inside coil ends 31, a plurality of electric conductors are arranged to be tilted in a forward direction with respect to the flowing direction of a cooling wind and the rotating direction of a rotor 3. Since a cooling wind produced by a fan 11 and flowing toward one of axial directions inside coil ends 31 is pulled by the rotation of the rotor 3, and flows containing a component in the rotating direction, the cooling wind tends to be a spiral flow. Here, the flow in the axial direction is accelerated by adopting forward inclined type group of coil ends, since protrusions and recessions formed by a plurality of coil ends arranged inside the group of coil ends function as guides in the axial direction for the flow components towards the rotating direction of the rotor 3 of the cooling wind.

67. 发明专利

JPH0951637A GENERATOR UNIT 失效
公开(公告)号：JPH0951637A
公开(公告)日：1997-02-18
申请号：JP33381195
申请日：1995-12-21
申请人： DENSO CORP
发明人： TANIGUCHI MAKOTO , UMEDA ATSUSHI , KUSASE ARATA
IPC分类号： H02J7/24 , H02J7/14
摘要： PROBLEM TO BE SOLVED: To obtain a generator unit which can feed power simultaneously to high and low voltage loads while suppressing increase in scale of generator unit and avoiding increase in the body and weight of a generator. SOLUTION: Generated voltages from a plurality of armature windings 1a, 1b, 1c connected in star are subjected to full-wave rectification through a high voltage rectifying means 3 and fed to a high voltage load 13. Voltage Vm at the neutral 1d of armature windings 1a, 1b, 1c is rectified through a low voltage rectifying means 4 and fed to a low voltage load 12. A voltage control means 5 controls the high voltage rectifying means 3 to conduct the high side MOSFETs 31-33 and to feed an appropriate amount of current to the armature windings 1a, 1b, 1c with the phase being advanced as compared with the voltage at the output end thereof thus regulating the generating voltage.

68. 发明专利

JP2006352934A ALTERNATOR FOR VEHICLE 审中-公开
公开(公告)号：JP2006352934A
公开(公告)日：2006-12-28
申请号：JP2005171813
申请日：2005-06-13
申请人： DENSO CORP
发明人： MURATA NAKAHITO , SHIGA TSUTOMU , UMEDA ATSUSHI
IPC分类号： H02K5/173 , H02K7/10 , H02K7/18
摘要： PROBLEM TO BE SOLVED: To provide an alternator for vehicle in which high reliability can be maintained by preventing a bearing from falling due to a stress applied from the vehicle. SOLUTION: The alternator 1 for vehicle comprises a rotor 3 which is driven by an engine through a belt to generate rotating flux, a stator 2 having an armature winding for generating an electromotive force by the rotating flux, a housing 4 to which the stator 2 is secured, a pulley 102 secured to the rotor 3 in order to transmit belt power, and bearings 5 and 6 secured to the housing 4 in order to support the rotor 3 rotatably. A bush 41 composed of an iron member is contained in the housing 4. In the bearing 5 arranged on the pulley side, an inner ring, an outer ring and balls are composed of an iron member and the outer ring is press-fitted in the bush 41 with a tightening margin. COPYRIGHT: (C)2007,JPO&INPIT

69. 发明专利

JP2003209956A AC GENERATOR FOR VEHICLE 审中-公开
公开(公告)号：JP2003209956A
公开(公告)日：2003-07-25
申请号：JP2002005029
申请日：2002-01-11
申请人： DENSO CORP
发明人： NAKAMURA SHIGENOBU , UMEDA ATSUSHI
IPC分类号： H02K3/04 , H02K3/18 , H02K3/28 , H02K19/22
摘要： PROBLEM TO BE SOLVED: To enhance vibration resistance by raising the rigidity of a coil end in an AC generator for a vehicle. SOLUTION: For a stator winding, inner conductors which are arranged in two or more pairs as an inner layer and an outer layer in the depth direction of a slot, and a first and a second coil end conductors which are arranged extendedly at both ends in the axial direction of the slot, are made. The first coil end 31a is a crossover which connects the inner conductors in different layers within the slot being apart by pitches narrower than those of NS magnetic poles, and the second coil end 31b is a crossover which connects the inner conductors in different layers within the slot being apart by pitches of NS magnetic poles. Consequently, the height of the first coil end can be lowered, so that the vibration resistance can be enhanced by raising the rigidity of the coil end. Moreover, since the generator can lower the electric resistance value of the first coil end, this can contribute to output elevation by lowering heat radiation loss. COPYRIGHT: (C)2003,JPO

70. 发明专利

JP2002281706A DYNAMO-ELECTRIC MACHINE 失效
公开(公告)号：JP2002281706A
公开(公告)日：2002-09-27
申请号：JP2001084685
申请日：2001-03-23
申请人： DENSO CORP
发明人： UMEDA ATSUSHI
IPC分类号： H02K3/04 , H02K3/28 , H02K19/22
摘要： PROBLEM TO BE SOLVED: To provide a dynamo-electric machine having high design flexibility in output characteristic, capable of restraining an increase in cost caused by a significant change of manufacturing equipment and attaining high reliability. SOLUTION: A stator winding 23 included in an AC generator for vehicle is formed by cyclically conducting connection of mid points 23C of single-phase windings with winding ends 23B of other-phase windings in respective three phase windings. A Δ-connecting part is formed out of the sections between the mid points 23C and the winding ends 23B of respective phase windings, and a Y-connecting part is formed out of the other sections. The output characteristic of the AC generator for vehicle can be changed by making positions of the mid points 23C variable.

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