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    • 121. 发明专利
    • PERMANENT-MAGNETIC ROTARY ELECTRIC MACHINE
    • JPS6268053A
    • 1987-03-27
    • JP20635485
    • 1985-09-20
    • TOSHIBA CORP
    • SAKAI KAZUTO
    • H02K21/12
    • PURPOSE:To obtain smooth revolution having no rotational pulsation even in operation at a low speed by forming a slot-less structure, in which a winding is distributed extensively, fixing permanent magnets on the inner circumferential side and outer circumferential side of a stator and mounting a rotor. CONSTITUTION:Windings 3a, 3b are fastened on the inner and outer circumferential surfaces of a rim 2 for a stator 1 by an epoxy resin and a glass tape and the like. A rotor 4 is shaped in double rotor structure consisting of cylindrical external rotor core 5a and internal rotor core 5b. Permanent magnets 6a, 6b are secured to each surface oppositely faced to the windings 3a, 3b of the external rotor core 5a and internal rotor core 5b. Magnetic flux generated from the permanent magnets 5a, 5b for the rotor 4 forms magnetic paths vertically penetrating the windings 3a, 3b fixed to the rim for the stator 1. Torque is generated in the tangential direction of the rotor 4 by the magnetic flux and currents flowing through the windings 3a, 3b.
    • 122. 发明专利
    • Permanent magnet type rotating electrical machine
    • 永磁式旋转电机
    • JP2013051763A
    • 2013-03-14
    • JP2011187072
    • 2011-08-30
    • Toshiba Corp株式会社東芝
    • HASHIBA YUTAKATAKAHASHI NORIOMATSUSHITA MAKOTOMISU DAISUKEYUKI KAZUAKISHIN MASANORIMOCHIZUKI SUKEYASUARAKI KUNIYUKITOKUMASU TADASHISAKAI KAZUTO
    • H02K1/27H02K1/22H02K21/14
    • PROBLEM TO BE SOLVED: To implement increased torque in a low speed rotation range and increased output and improved efficiency in a middle/high speed rotation range.SOLUTION: The permanent magnet type rotating electrical machine includes: a stator 12 having a stator core 16 and armature windings 18; and a rotor 14 having a rotor core 24 rotatable relative to the stator, and a plurality of permanent magnets 3, 4a, 4b embedded to form a plurality of magnetic poles 7, and during operation, magnetizes at least one of the permanent magnets constituting the magnetic pole of the rotor via a magnetic field generated by a current flowing through the armature windings to thereby irreversibly change a flux content of the permanent magnet. The plurality of permanent magnets forming the magnetic pole include a variable intensity magnet 3 having an irreversibly variable flux content, and a fixed intensity magnet 4a arranged in series with the variable intensity magnet in terms of a magnetic circuit for forming the magnetic pole and having a fixed flux content, and the fixed intensity magnet 4a has a larger product of a coercive force and a magnetization direction thickness than that of the variable intensity magnet 3 fully within a maximum use temperature range.
    • 要解决的问题:在低速旋转范围内实现增加的转矩,提高输出,提高中高速旋转范围的效率。 永磁式旋转电机包括:具有定子芯16和电枢绕组18的定子12; 以及具有可相对于定子旋转的转子芯24的转子14和嵌入以形成多个磁极7的多个永久磁铁3,4a,4b,并且在运行期间磁化至少一个构成 通过由流过电枢绕组的电流产生的磁场,转子的磁极,从而不可逆地改变永磁体的磁通量。 形成磁极的多个永磁体包括具有不可逆变量的磁通量的可变强度磁体3和与用于形成磁极的磁路方面与可变强度磁体串联设置的固定强度磁体4a, 固定磁通量,固定强度磁体4a在最大使用温度范围内,具有比可变强度磁铁3完全矫顽力和磁化方向厚度大的乘积。 版权所有(C)2013,JPO&INPIT
    • 123. 发明专利
    • Permanent magnet type rotary electrical machinery
    • 永磁电机型旋转电机
    • JP2012023904A
    • 2012-02-02
    • JP2010160973
    • 2010-07-15
    • Toshiba Corp株式会社東芝
    • YASUI KAZUYASAKAI KAZUTOSHIN MASANORI
    • H02K1/27H02K1/22
    • Y02T10/641
    • PROBLEM TO BE SOLVED: To provide a permanent magnet type rotary electrical machinery improving reluctance torque and availability of the reluctance torque.SOLUTION: A permanent magnet type rotary electrical machinery comprises: a stator having a armature coil; and a rotor capable of combining magnet torque of a permanent magnet with reluctance torque of electrical saliency. When a magnetic flux direction on the arrangement of the permanent magnet is defined as d-axis and the direction of a phase electrically advanced by 90° with the d-axis in a normal rotation direction is defined as q-axis, the rotor is constituted in such a manner that an electrically salient pole direction is in a lagged phase direction with the q-axis or that the direction of total flux of the permanent magnets output from the rotor is in an advanced phase direction with the d-axis, or the rotor is constituted in a manner that satisfies both of them.
    • 要解决的问题:提供改善磁阻转矩和磁阻转矩可用性的永磁式旋转电机。 永磁式旋转电机包括:具有电枢线圈的定子; 以及能够将永磁体的磁力矩与电凸极的磁阻转矩组合的转子。 将永久磁铁的配置中的磁通方向定义为d轴,将d轴沿正常旋转方向电前进90°的相位方向定义为q轴时,构成转子 使得电凸极方向与q轴呈滞后相位方向,或者从转子输出的永久磁铁的总磁通方向与d轴呈前进相位方向,或者 转子以满足它们的方式构成。 版权所有(C)2012,JPO&INPIT
    • 124. 发明专利
    • Permanent magnet type rotary electric machine
    • 永磁式旋转电机
    • JP2011103747A
    • 2011-05-26
    • JP2009258430
    • 2009-11-11
    • Toshiba Corp株式会社東芝
    • TAKAHASHI NORIOSAKAI KAZUTOHASHIBA YUTAKAYUKI KAZUAKISHIN MASANORIMOCHIZUKI SUKEYASUTOKUMASU TADASHI
    • H02K1/27H02K1/22
    • PROBLEM TO BE SOLVED: To provide a rotary electric machine which remarkably reduces q-axis part leakage magnetic flux, makes magnetization distribution of a variable magnetic force magnet uniform and improves efficiency, reliability and manufacturability in a wide operation range when the variable magnetic force magnet is magnetized by d-axis current.
      SOLUTION: A rotor 1 includes a rotor core 2, a variable magnetic force magnet 3, fixed magnetic force magnets 4 and 4 and short circuit coils 7a and 7b arranged above and below the variable magnetic force magnet 3 and the fixed magnetic force magnets 4. The short circuit coils 7 are arranged on the upper/lower sides of the magnets so that the coils surround a magnet which is embedded in the rotor core 2 and in which the variable magnetic force magnet 3 and the fixed magnetic force magnet 4a are laminated, and the fixed magnetic force magnets 4 and 4 on both sides. Center axes of the short circuit coils 7a and 7b are made equal to the fixed magnetic force magnets 4 and 4 in magnetization directions. The short circuit coil 7a is installed to surround the fixed magnetic force magnet 4 and an outer periphery of the q-axis. Thus, a magnetic field (leakage magnetic field) A3 operating on the fixed magnetic force magnet and the outer peripheral side of the q-axis can be negated.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了提供显着地减小q轴部分泄漏磁通量的旋转电机,使可变磁力磁铁的磁化分布均匀,并且在变化时可以在较宽的运行范围内提高效率,可靠性和可制造性 磁力磁铁被d轴电流磁化。 解决方案:转子1包括转子芯2,可变磁力磁铁3,固定磁力磁体4和4以及设置在可变磁力磁铁3上方和下方的短路线圈7a和7b以及固定磁力 磁体4.短路线圈7配置在磁体的上下侧,使得线圈包围嵌入在转子铁心2中的磁体,其中可变磁力磁铁3和固定磁力磁铁4a 并且两侧的固定磁力磁铁4和4。 使短路线圈7a,7b的中心轴的磁化方向与固定磁力磁铁4和4相等。 短路线圈7a被安装成围绕固定磁力磁铁4和q轴的外周。 因此,可以否定对固定磁力磁铁和q轴的外周侧进行动作的磁场(漏磁场)A3。 版权所有(C)2011,JPO&INPIT
    • 125. 发明专利
    • Permanent magnet type rotary electric machine
    • 永磁式旋转电机
    • JP2011061996A
    • 2011-03-24
    • JP2009209824
    • 2009-09-10
    • Toshiba Corp株式会社東芝
    • SAKAI KAZUTOYUKI KAZUAKIHASHIBA YUTAKATAKAHASHI NORIOTOKUMASU TADASHISHIN MASANORIMOCHIZUKI SUKEYASU
    • H02K1/27H02K21/14
    • PROBLEM TO BE SOLVED: To provide a permanent magnet type rotary electric machine that operates at high output at variable speed in a wide range from low speed to high speed, and improves efficiency, improves reliability, and improves productivity in a wide operation range. SOLUTION: Magnetic pole parts 5 of the permanent magnet type rotary electric machine each comprise a stator having an armature coil provided on a stator core, and a rotor consisting of the stator core 2, a variable magnetic force magnet 3 formed on the rotor core, fixed magnetic force magnets 4, 4, and a permanent magnet. In the rotor core 2, an iron-made magnetic pole part 7 for generating a reluctance torque is provided between the magnetic pole parts 5. At least one variable magnetic force magnet 3 is magnetized in a magnetic field formed by a current of the armature coil of the stator in order to irreversibly change the magnetic flux amount of the permanent magnet of the rotor. In this case, the operation point at the maximum torque is set at a knick point or more in a demagnetization curve of the magnetic characteristics of the variable magnetic force magnet 3 to be irreversibly changed, and the operation point of the demagnetization curve is set lower than the knick point when a current phase is not less than a certain angle in a range of 90-180 degrees which advances from a q-axis reference. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种永磁式旋转电机,其从低速到高速的宽范围内以高速输出运行,提高效率,提高可靠性,提高广泛运行的生产率 范围。 解决方案:永久磁铁式旋转电机的磁极部件5分别具有设置在定子铁芯上的电枢线圈的定子和由定子铁心2构成的转子,形成在定子铁芯2上的可变磁力磁铁3 转子芯,固定磁力磁体4,4和永磁体。 在转子铁芯2中,在磁极部5之间设置用于产生磁阻转矩的铁制磁极部7.至少一个可变磁力磁铁3由电枢线圈的电流形成的磁场中被磁化 以不可逆地改变转子的永久磁铁的磁通量。 在这种情况下,在可变磁力磁铁3的磁特性的退磁曲线中将最大转矩下的操作点设定为小于或等于零点,并且将退磁曲线的操作点设定得较低 当电流相位在从q轴基准方向前进的90-180度的范围内不小于一定角度时,比点数点。 版权所有(C)2011,JPO&INPIT
    • 127. 发明专利
    • Permanent magnet type rotating electric machine
    • 永磁式旋转电机
    • JP2010148179A
    • 2010-07-01
    • JP2008320138
    • 2008-12-16
    • Toshiba Corp株式会社東芝
    • HASHIBA YUTAKASAKAI KAZUTOTAKAHASHI NORIOYUKI KAZUAKISHIN MASANORIMATSUOKA YUSUKETOKUMASU TADASHI
    • H02K1/27H02K21/14
    • PROBLEM TO BE SOLVED: To provide a permanent magnet type rotating electric machine capable of variable speed operation in a wide range from a low speed to high speed with high output by suppressing an increase in magnetization current in demagnetization and magnetization.
      SOLUTION: A rotor 1 includes a rotor core 2, a variable magnetic force magnet 3 and fixed magnetic force magnets 4. The fixed magnetic force magnets 4 are arranged on both sides of the variable magnetic force magnet 3. Conductive plates 8 are arranged above and below the fixed magnetic force magnet 4. When a magnetic field by the magnetized current of the variable magnetic force magnet 3 penetrates through the conductive plate 8, an induction current is applied to the conductive plate 8, and a magnetic field C is generated. This magnetic field and a magnetic force of a magnetic flux by the magnetized current flowing through the fixed magnetic force magnet cancel each other, and a magnetic field generated by the magnetized current concentrates in the variable magnetic force magnet 3 to execute magnetization efficiently.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种能够通过抑制退磁和磁化中的磁化电流的增加而从具有高输出的从低速到高速的宽范围内的变速操作的永磁式旋转电机。 解决方案:转子1包括转子芯2,可变磁力磁铁3和固定磁力磁铁4.固定磁力磁铁4设置在可变磁力磁铁3的两侧。导电板8 设置在固定磁力磁铁4的上方和下方。当通过可变磁力磁铁3的磁化电流的磁场穿过导电板8时,感应电流被施加到导电板8,并且磁场C 产生。 该磁场和通过固定磁力磁体的磁化电流产生的磁通磁场相互抵消,并且由磁化电流产生的磁场集中在可变磁力磁铁3中以有效地进行磁化。 版权所有(C)2010,JPO&INPIT
    • 128. 发明专利
    • Permanent magnet rotary electric machine
    • 永磁电机旋转电机
    • JP2010142059A
    • 2010-06-24
    • JP2008317955
    • 2008-12-15
    • Toshiba Corp株式会社東芝
    • HASHIBA YUTAKASAKAI KAZUTOTAKAHASHI NORIOYUKI KAZUAKISHIN MASANORIMATSUOKA YUSUKETOKUMASU TADASHI
    • H02K21/14H02K1/22H02K1/27H02K15/03H02K15/08
    • PROBLEM TO BE SOLVED: To assemble short circuit coils around a permanent magnet by an easy method in a permanent magnet rotary electric machine including a rotor core having a skew structure.
      SOLUTION: According to a skew angle, conductive bars 31a, 32a and 31b, 32b are provided on both sides of a conductive plate 30 in such a manner that the conductive bars stagger in the peripheral direction of a rotor on the front and rear faces of the conductive plate 30. While the conductive bars 31a to 32b provided on both sides are inserted into short circuit coil insertion holes 22a, 22b, the conductive plate 30 is pinched between iron cores 20a, 20b. By short-circuiting the ends of the conductive bars 31a and 32a and the ends of the conductive bars 31b and 32b, short circuit connections 33a, 33b are formed. In the iron core 20a, a short circuit coil consisting of the conductive plate 30, conductive bar 31a, short circuit connection 33a, and conductive bar 32a in this order is formed, and in the iron core 20b, a short circuit coil consisting of the conductive plate 30, conductive bar 31b, short circuit connection 33b, and conductive bar 32b in this order is formed.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:在包括具有歪斜结构的转子铁芯的永久磁铁旋转电机中,通过简单的方法在永磁体周围组装短路线圈。 解决方案:根据倾斜角度,导电棒31a,32a和31b,32b以导电板30的两侧设置在导电板30的两侧,使得导电棒在前面的转子的周向方向上交错, 导电板30的后表面。当设置在两侧的导电棒31a至32b插入到短路线圈插入孔22a,22b中时,导电板30被夹在铁芯20a,20b之间。 通过使导电棒31a,32a的端部与导电棒31b,32b的端部短路,形成短路连接部33a,33b。 在铁芯20a中,形成由导电板30,导电棒31a,短路连接部33a,导电棒32a构成的短路线圈,在铁芯20b上形成由 导电板30,导电棒31b,短路连接33b和导电棒32b。 版权所有(C)2010,JPO&INPIT
    • 130. 发明专利
    • Variable flux drive system
    • 可变磁力驱动系统
    • JP2009017694A
    • 2009-01-22
    • JP2007177260
    • 2007-07-05
    • Toshiba Corp株式会社東芝
    • YUKI KAZUAKISAKAI KAZUTOMOCHIKAWA HIROSHI
    • H02P21/00H02P27/04H02P27/06
    • Y02T10/641Y02T10/643Y02T10/644Y02T10/7241
    • PROBLEM TO BE SOLVED: To provide a variable flux drive system which employs a variable flux motor capable of variably controlling magnet flux in place of a permanent magnet motor, easily suppresses an electromotive voltage based on the flux of a variable magnet for use in the variable flux motor according to a situation by using a simple device, is prevented from being applied with a brake force in a high-speed range, and protects the system in safe. SOLUTION: The variable flux drive system comprises: the variable flux motor 1 having the variable magnet being a permanent magnet which is low in holding force; an inverter 4 which drives the variable flux motor 1; an inverter 4 being a magnetization part which feeds a magnetization current for controlling the flux of the variable magnet; a stop demagnetization determination part 8a which determines whether demagnetization should be applied to the variable magnet or not, and generates a demagnetization signal on the basis of the determination result; and an inverter 4 which demagnetizes the variable magnet on the basis of the demagnetization signal generated by the stop demagnetization determination part 8a. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了提供一种可变磁通驱动系统,其采用能够可变地控制磁通量代替永磁电动机的可变磁通电动机,可以容易地基于使用的可变磁体的磁通抑制电动势电压 在通过使用简单装置的情况下的可变磁通电动机中,防止在高速范围内施加制动力,并且保护系统安全。 解决方案:可变磁通驱动系统包括:具有可变磁体的可变磁通电动机1是保持力低的永磁体; 驱动可变磁通电动机1的逆变器4; 反相器4是磁化部,其馈送用于控制可变磁体的磁通的磁化电流; 确定是否应该对可变磁铁进行退磁的停止退磁判定部分8a,并根据确定结果生成去磁信号; 以及逆变器4,其基于由停止退磁判定部8a生成的消磁信号,对可变磁铁进行磁化。 版权所有(C)2009,JPO&INPIT