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81. 发明专利

JP2005304271A Synchronous generator and wind-power generation system 审中-公开
标题翻译：同步发电机和风力发电系统
公开(公告)号：JP2005304271A
公开(公告)日：2005-10-27
申请号：JP2004120986
申请日：2004-04-16
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NISHIHAMA KAZUO , IDE KAZUMASA , KIMURA MAMORU , FUJIGAKI TETSURO
IPC分类号： F03D9/00 , H02K1/26 , H02K3/28 , H02K17/42 , H02K19/26 , H02P9/00
CPC分类号： Y02E10/725
摘要： PROBLEM TO BE SOLVED: To reduce dimensions and cost and to improve current waveforms that can be supplied to an electric power system, in a wind-power generation system which uses an AC excitation-synchronous generator. SOLUTION: In a method of constituting the excitation-synchronous generator that comprises a rotor, which stores exciting windings in iron-core slots arranged at equal intervals, and a stator, which stores armature windings in the iron-core slots arranged at equal intervals, and in which the exciting windings stored in the rotor are excited by a variable frequency AC exciting device to cause AC electric power of a constant frequency to be generated in the armature windings; the iron-core slots are configured to make a difference between the number of stator slots and that of the rotor slots per two poles become ±6; winding pitch is selected so as to minimize winding factors for 5th and 7th spatial harmonics of the winding factors of the armature windings in the armature windings; and rotor slots are configured to be of a semi-enclosed slot shape so as to become asymmetric in the circumferential direction. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：在使用AC励磁同步发电机的风力发电系统中，为了减小尺寸和成本以及改善可以提供给电力系统的电流波形。解决方案：在构成励磁同步发电机的方法中，该励磁同步发电机包括转子，该转子在相当的间隔布置的铁芯槽中存储励磁绕组，以及定子，其将电枢绕组存储在布置在其中存储在转子中的励磁绕组由可变频率AC励磁装置激励，以在电枢绕组中产生恒定频率的交流电力; 铁芯槽被构造成使每个两极的定子槽数和转子槽数之间的差成为±6; 选择绕组间距，以便最小化电枢绕组中电枢绕组的绕组因数的第5和第7空间谐波的绕组因数; 并且转子槽被构造成半封闭槽形状，从而在圆周方向上变得不对称。版权所有（C）2006，JPO＆NCIPI

82. 发明专利

JP2003244912A INDUCTION GENERATOR AND MANUFACTURING METHOD FOR ROTOR THEREOF 审中-公开
公开(公告)号：JP2003244912A
公开(公告)日：2003-08-29
申请号：JP2002036376
申请日：2002-02-14
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： HASEGAWA KAZUMI , OZAKI SHINICHI , TAKAHASHI TOSHIO , KUWATA ITSUKI , SUGITANI MUNEYASU
IPC分类号： H02K1/26 , H02K15/02 , H02K17/42
摘要： PROBLEM TO BE SOLVED: To provide an induction generator and a manufacturing method for a rotor thereof wherein with respect to the rotor which is rotated at high speed, the machining of rotor conductors installed on the surface of a rotor core is facilitated and rotational stresses produced in joints between them is reduced for enhancing reliability, and with respect to a stator, the uneven distribution of magnetic flux density is eliminated and spacial harmonics are reduced for the reduction of loss. SOLUTION: With respect to the rotor 20 of the induction generator 10, rotor conductors 22 composed of a portion 22a opposed to the stator and end ring portions 22b connected to both ends of the portion 22a opposed to the stator are installed in a stepped recess 23 in the rotor core 21 by electrocasting or thermal spraying. With respect to the stator 30, a stator core 31 is constituted of an inner ring 31a, an outer ring 31b and teeth 31c which connect them. After stator coils 40 are installed, either the inner ring 31a or the outer ring 31b is jointed in a shape of a closed circle, and the stator 30 without slot 32 openings is obtained. COPYRIGHT: (C)2003,JPO

83. 发明专利

JP2001268853A BRUSHLESS MOTOR 失效
公开(公告)号：JP2001268853A
公开(公告)日：2001-09-28
申请号：JP2000075817
申请日：2000-03-17
申请人： UNISIA JECS CORP
发明人： ISOBE SHINICHI , NAKAMURA TOSHIAKI , HAMAI KYUGO
IPC分类号： H02K17/30 , B60L50/16 , H02K7/10 , H02K11/00 , H02K17/32 , H02K17/42 , H02K29/00 , B60L11/14
摘要： PROBLEM TO BE SOLVED: To improve assembling workability without causing irregularity of quality and deterioration of precision, and enable manufacturing at a low cost. SOLUTION: An annular motor stator 18 is arranged in a housing 14, and a motor rotor 19 is fixed to a power transmission shaft 12 so as to face the motor stator 18. A sensor rotor 23 is formed integrally with one end side inner periphery in the axial direction of the motor rotor 19, and a sensor stator 24 is arranged on the inner peripheral side of the sensor rotor 23. The motor stator 24 and the motor rotor 19 are positioned in the case of manufacturing, so that positioning of them is unnecessary in the case of assembling to the power transmission shaft 12.

84. 发明专利

JP2516337B2 失效
公开(公告)号：JP2516337B2
公开(公告)日：1996-07-24
申请号：JP11185486
申请日：1986-05-15
申请人： SATAKE ENG CO LTD
发明人： SATAKE TOSHIHIKO
IPC分类号： H02K16/00 , H02K17/30 , H02K17/34 , H02K17/42 , H02P21/04 , H02P21/34 , H02P21/36 , H02P23/00 , H02P23/03 , H02P23/07 , H02P25/02 , H02P7/36

85. 发明专利

JPH07298584A SQUIRREL-CAGE SELF-EXCITED SINGLE-PHASE INDUCTION GENERATOR 失效
公开(公告)号：JPH07298584A
公开(公告)日：1995-11-10
申请号：JP11947594
申请日：1994-04-19
申请人： FUKAMI TADASHI
发明人： FUKAMI TADASHI
IPC分类号： H02K17/42
摘要： PURPOSE:To obtain a squirrel-cage self-excited single-phase induction generator, wherein the leading current of the generator is automatically changed without increasing and decreasing the capacitance a capacitor in response to load changes. CONSTITUTION:A squirrel-cage three-phase induction machine, and two capacitors 4, which are connected in series, are connected between two terminals of the three-phase terminals of a stator. A single-phase load 5 is obtained from the mutually connecting point of two capacitors and from the remaining one terminal of the three-phase terminals.

86. 实用新型

JPH0641375U 失效
公开(公告)号：JPH0641375U
公开(公告)日：1994-05-31
申请号：JP7322592
申请日：1992-10-21
IPC分类号： H02K17/42

87. 发明专利

JPH06153472A EMPLOYMENT METHOD OF INDUCTION MACHINE 失效
公开(公告)号：JPH06153472A
公开(公告)日：1994-05-31
申请号：JP29276492
申请日：1992-10-30
申请人： MEIDENSHA ELECTRIC MFG CO LTD
发明人： MATSUURA HIDEMI
IPC分类号： H02K3/28 , H02K7/10 , H02K17/42
摘要： PURPOSE:To utilize an induction machine efficiently as a small capacity motor and as a large capacity generator and improve a total engine efficiency. CONSTITUTION:The rotor of an induction machine is connected to the rotary shaft of an internal combustion engine and the poles of the respective phases of the stator of the induction machine are composed of a plurality of winding coils 1 which are inserted into the respective sides of delta-connection lines or star-connection lines. When the operation of the internal combustion engine is started, the connection pattern of the stator is the star-connection as shown in Fig. (b) and a power is supplied to give a rotary driving force to the rotary shaft of the internal combustion engine. On the other hand, after the start, the connection pattern is switched to the delta-connection as shown in Fig. (a) and the rotating power is given to the induction machine from the rotary shaft to generate a power.

88. 发明专利

JPH05223052A CURRENT GENERATOR UTILIZING WAVE ENERGY AND HYDROGEN GAS GENERATOR THEREWITH 失效
公开(公告)号：JPH05223052A
公开(公告)日：1993-08-31
申请号：JP5672492
申请日：1992-02-06
申请人： KANEMATSU ENG
发明人： YAMAZAKI TAKASUKE , MATSUOKA JUNICHI , ISHIMURA AKIRA
IPC分类号： F03B13/14 , H02K7/18 , H02K17/42
摘要： PURPOSE:To provide a current generator and a hydrogen gas generator utilizing wave energy, having a simple structure, capable of reducing the running cost, and capable of generating hydrogen gas with the generated current. CONSTITUTION:A current generator A is provided with a U-shaped passage 1 arranged under the water, a fluid metal 2 such as mercury put in the U-shaped passage 1, a magnetic field generating means 3 surrounding the U-shaped passage 1, and a moving means 4 reciprocating the fluid metal 2 in the U-shaped passage 1 via the height difference of waves, and a current is generated by the reciprocating movement of the fluid metal 2 in the magnetic field by the magnetic field generating means 3. The current generated by the current generator A is fed to an electrolysis tank 5 to electrolyze water H2O, and hydrogen gas H2 is generated in a hydrogen gas generator B.

89. 发明专利

JPH05168205A MAGNETISM-CONTROLLING HOMOPOLAR INDUCTION GENERATOR 失效
公开(公告)号：JPH05168205A
公开(公告)日：1993-07-02
申请号：JP33509391
申请日：1991-12-18
申请人： YAMAZAKI SHIYAARING KK
发明人： YAMAZAKI MITSUNOBU , OBA MASARU
IPC分类号： H02K17/42
摘要： PURPOSE:To obtain an economical magnetism-controlling induction generator excellent in miniaturization with a high electromotive force, and durability and oscillation-proof property, having the handy mechanism of a stator and a rotor. CONSTITUTION:A stator consisting of four magnetic bodies 1-4 arranged to be continuously jointed to each other at equal angles and at equal intervals on a circumference, and first poles 20, 20a, 20b for a magnet set to be separated from the magnetic bodies on the circumference, positioned in the directions of polarities different from each other, are arranged. Besides, a device is formed to be provided with a rotor having second poles 21, 21a, 21b for the magnet positioned at polarities opposite to the first poles, positioned at the same angle as the angles of the first poles and separated at a specified interval in the axial direction, the sections of the magnetic bodies for regulating magnetic flux density with the rotation of the rotor, namely, windings 11-14 wound up to cross magnetic flux at a position between the first and second poles, and a rotary shaft 22 formed with a non-magnetic body for supporting the rotor to be rotated.

90. 发明专利

JPH03112348A AC ELECTRIC MACHINE USING PARAMETRIC VIBRATION 失效
公开(公告)号：JPH03112348A
公开(公告)日：1991-05-13
申请号：JP24791289
申请日：1989-09-26
申请人： MURAKAMI KOICHI
发明人： MURAKAMI KOICHI , WATANABE TADAAKI
IPC分类号： H02K1/22 , H02K1/12 , H02K17/42
摘要： PURPOSE:To promote efficiency and output of an AC electric machine by forming a common magnetic path of a plurality of circular magnetic paths connected and arranged in the direction of an axis, in the AC electric machine using parametric vibration. CONSTITUTION:Three circular magnetic paths 31-33 are formed of a magnetic material, and they are connected and arranged in the direction of an axis to form a common magnetic path 3. A U-shaped primary side core 1 and secondary side core 2 are such that both ends of each core are connected to both radial end positions at right angles to each other at each end of the common magnetic path 3 mentioned above. A rotor 4 is placed at the inside of the common magnetic path 3 in coaxial. Thus, the common magnetic path 3 is formed by connecting a plurality of circular magnetic paths 31-33 so that magnetic resistance in the axial direction is increased, and magnetic flux amount in the rear is increased. Accordingly, average magnetic flux density is increased, and efficiency is also increased as well. According to the constitution, an AC electric machine having enhanced efficiency and output as an electric motor and an AC generator can be obtained.

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