公开(公告)号：US08796898B2

公开(公告)日：2014-08-05

申请号：US13139889

申请日：2009-12-15

申请人： Yutaka Hashiba ,  Kazuto Sakai ,  Norio Takahashi ,  Kazuaki Yuuki ,  Masanori Arata ,  Yusuke Matsuoka ,  Motoyasu Mochizuki ,  Tadashi Tokumasu

发明人： Yutaka Hashiba ,  Kazuto Sakai ,  Norio Takahashi ,  Kazuaki Yuuki ,  Masanori Arata ,  Yusuke Matsuoka ,  Motoyasu Mochizuki ,  Tadashi Tokumasu

IPC分类号： H02K21/12 ,  H02K21/20 ,  H02K3/00

CPC分类号： H02K15/03 ,  H02K1/02 ,  H02K1/223 ,  H02K1/2766 ,  H02K21/028 ,  Y10T29/49009 ,  Y10T29/49012

摘要： According to one embodiment, a rotor is configured by a rotor core and magnetic poles. Two or more types of permanent magnets are used such that each product of coercivity and thickness in the magnetization direction becomes different. A stator is located outside the rotor with air gap therebetween and configured by an armature core winding. At least one permanent magnet is magnetized by a magnetic field by a current of the armature winding to change a magnetic flux content thereof irreversibly. A short circuited coil is provided to surround a magnetic path portion of the other permanent magnet excluding the magnet changed irreversibly and a portion adjacent to the other permanent magnet where the magnetic flux leaks. A short-circuit current is generated in the short circuited coil by the magnetic flux generated by conducting a magnetization current to the winding. A magnetic field is generated by the short-circuit current.

摘要翻译： 根据一个实施例，转子由转子芯和磁极构成。 使用两种或更多种类型的永磁体，使得矫顽力和磁化方向上的厚度的每个乘积变得不同。 定子位于转子外部，其间具有气隙，并由电枢铁心绕组构成。 至少一个永磁体被电枢绕组的电流通过磁场磁化，以不可逆地改变其磁通量。 设置短路线圈以围绕除了不可逆地改变的磁体之外的另一个永磁体的磁路部分和与磁通量泄漏的另一个永久磁铁相邻的部分。 短路电流由短路线圈产生的磁通量通过向绕组施加磁化电流而产生。 由短路电流产生磁场。

公开(公告)号：US20110304235A1

公开(公告)日：2011-12-15

申请号：US13139889

申请日：2009-12-15

申请人： Yutaka Hashiba ,  Kazuto Sakai ,  Norio Takahashi ,  Kazuaki Yuuki ,  Masanori Arata ,  Yusuke Matsuoka ,  Motoyasu Mochizuki ,  Tadashi Tokumasu

发明人： Yutaka Hashiba ,  Kazuto Sakai ,  Norio Takahashi ,  Kazuaki Yuuki ,  Masanori Arata ,  Yusuke Matsuoka ,  Motoyasu Mochizuki ,  Tadashi Tokumasu

IPC分类号： H02K3/16 ,  H02K15/02

CPC分类号： H02K15/03 ,  H02K1/02 ,  H02K1/223 ,  H02K1/2766 ,  H02K21/028 ,  Y10T29/49009 ,  Y10T29/49012

摘要： According to one embodiment, a rotor is configured by a rotor core and magnetic poles. Two or more types of permanent magnets are used such that each product of coercivity and thickness in the magnetization direction becomes different. A stator is located outside the rotor with air gap therebetween and configured by an armature core winding. At least one permanent magnet is magnetized by a magnetic field by a current of the armature winding to change a magnetic flux content thereof irreversibly. A short circuited coil is provided to surround a magnetic path portion of the other permanent magnet excluding the magnet changed irreversibly and a portion adjacent to the other permanent magnet where the magnetic flux leaks. A short-circuit current is generated in the short circuited coil by the magnetic flux generated by conducting a magnetization current to the winding. A magnetic field is generated by the short-circuit current.

摘要翻译： 根据一个实施例，转子由转子芯和磁极构成。 使用两种或更多种类型的永磁体，使得矫顽力和磁化方向上的厚度的每个乘积变得不同。 定子位于转子外部，其间具有气隙，并由电枢铁心绕组构成。 至少一个永磁体被电枢绕组的电流通过磁场磁化，以不可逆地改变其磁通量。 设置短路线圈以围绕除了不可逆地改变的磁体之外的另一个永磁体的磁路部分和与磁通量泄漏的另一个永久磁铁相邻的部分。 短路电流由短路线圈产生的磁通量通过向绕组施加磁化电流而产生。 由短路电流产生磁场。

公开(公告)号：US08569921B2

公开(公告)日：2013-10-29

申请号：US13403666

申请日：2012-02-23

申请人： Kazuto Sakai ,  Yutaka Hashiba ,  Norio Takahashi ,  Kazuaki Yuuki ,  Makoto Matsushita ,  Daisuke Misu ,  Masanori Arata ,  Tadashi Tokumasu ,  Motoyasu Mochizuki ,  Kuniyuki Araki

发明人： Kazuto Sakai ,  Yutaka Hashiba ,  Norio Takahashi ,  Kazuaki Yuuki ,  Makoto Matsushita ,  Daisuke Misu ,  Masanori Arata ,  Tadashi Tokumasu ,  Motoyasu Mochizuki ,  Kuniyuki Araki

IPC分类号： H02K21/12

CPC分类号： H02K21/04 ,  H02K21/14

摘要： According to one embodiment, a permanent-magnet type electric rotating machine has a stator, a magnetizing coil, a rotor and a case. The stator has an armature coil configured to form a magnetic circuit for driving. The magnetizing coil is configured to form a magnetic circuit for magnetizing. The rotor has a constant magnetized magnet, a rotor core and a variable magnetized magnet. The rotor core holds the constant magnetized magnet. The constant magnetized magnet is arranged closer to the magnetic circuit for driving than the variable magnetized magnet. The variable magnetized magnet is arranged closer to the magnetic circuit for magnetizing than the constant magnetized magnet.

摘要翻译： 根据一个实施例，永磁式旋转电机具有定子，磁化线圈，转子和壳体。 定子具有构造成形成用于驱动的​​磁路的电枢线圈。 磁化线圈构成为形成用于磁化的磁路。 转子具有恒定的磁化磁体，转子芯和可变磁化磁体。 转子芯保持恒定的磁化磁体。 恒定磁化磁体比可变磁化磁铁更靠近用于驱动的​​磁路布置。 可变磁化磁体比恒定磁化磁体更靠近用于磁化的磁路。

公开(公告)号：US20110309706A1

公开(公告)日：2011-12-22

申请号：US13140669

申请日：2009-12-16

申请人： Norio Takahashi ,  Kazuto Sakai ,  Yutaka Hashiba ,  Kazuaki Yuuki ,  Masanori Arata ,  Yusuke Matsuoka ,  Tadashi Tokumasu

发明人： Norio Takahashi ,  Kazuto Sakai ,  Yutaka Hashiba ,  Kazuaki Yuuki ,  Masanori Arata ,  Yusuke Matsuoka ,  Tadashi Tokumasu

IPC分类号： H02K1/27

CPC分类号： H02K1/276 ,  H02K1/2766 ,  H02K2201/06

摘要： According to one embodiment, a rotor 1 has rotor cores 2a, 2b divided in the axial direction. a permanent magnet 30 is mounted at the position of each of the magnetic poles of cores. The permanent magnet 30 of each magnetic pole is configured by a single tabular member that penetrates the two divided cores in the axial direction. Convex parts 31a, 31b are respectively provided on the outer peripheries of the respective magnetic poles of the rotor cores along the axial direction of the rotor. The convex parts 31a, 31b are provided to positions that are displaced for each of the two divided cores. The magnetic flux density increases in the convex parts, which becomes the magnetic pole center. Since the convex parts positions are displaced to each other, a skew function can be exhibited even if the permanent magnet is mounted at the same position.

摘要翻译： 根据一个实施例，转子1具有沿轴向分开的转子芯2a，2b。 永磁体30安装在芯的每个磁极的位置。 每个磁极的永磁体30由在轴向方向上贯穿两个分开的芯的单个板状构件构成。 凸部31a，31b分别设置在转子芯的各个磁极的外周沿着转子的轴向。 凸部31a，31b设置在两个分割芯的每一个上移位的位置。 凸起部分的磁通密度增加，成为磁极中心。 由于凸部位置彼此位移，所以即使将永久磁铁安装在同一位置，也能够发挥偏斜功能。

公开(公告)号：US08653710B2

公开(公告)日：2014-02-18

申请号：US13140669

申请日：2009-12-16

申请人： Norio Takahashi ,  Kazuto Sakai ,  Yutaka Hashiba ,  Kazuaki Yuuki ,  Masanori Arata ,  Yusuke Matsuoka ,  Tadashi Tokumasu

发明人： Norio Takahashi ,  Kazuto Sakai ,  Yutaka Hashiba ,  Kazuaki Yuuki ,  Masanori Arata ,  Yusuke Matsuoka ,  Tadashi Tokumasu

IPC分类号： H02K21/12 ,  H02K21/20

CPC分类号： H02K1/276 ,  H02K1/2766 ,  H02K2201/06

摘要： A rotor has rotor cores divided in the axial direction. A permanent magnet is mounted at the position of each of the magnetic poles of cores. The permanent magnet of each magnetic pole is configured by a single tabular member that penetrates the two divided cores in the axial direction. Convex parts are respectively provided on the outer peripheries of the respective magnetic poles of the rotor cores along the axial direction of the rotor. The convex parts are provided to positions that are displaced for each of the two divided cores. The magnetic flux density increases in the convex parts, which becomes the magnetic pole center. Since the convex parts positions are displaced to each other, a skew function can be exhibited even if the permanent magnet is mounted at the same position.

摘要翻译： 转子具有沿轴向分割的转子芯。 永磁体安装在芯的每个磁极的位置。 每个磁极的永磁体由在轴向方向上穿透两个分开的芯的单个板状构件构成。 凸部分别设置在转子芯的各个磁极的外周上，沿着转子的轴向。 凸部设置在两个分割芯的每一个上移位的位置。 凸起部分的磁通密度增加，成为磁极中心。 由于凸部位置彼此位移，所以即使将永久磁铁安装在同一位置，也能够发挥偏斜功能。

公开(公告)号：US08624457B2

公开(公告)日：2014-01-07

申请号：US13130206

申请日：2009-11-19

申请人： Kazuto Sakai ,  Yutaka Hashiba ,  Norio Takahashi ,  Kazuaki Yuuki

发明人： Kazuto Sakai ,  Yutaka Hashiba ,  Norio Takahashi ,  Kazuaki Yuuki

IPC分类号： H02K21/12

CPC分类号： H02K1/2766

摘要： An increase of the magnetization current can be prevented during demagnetization and magnetization, and a variable speed operation can be achieved at a high power output over a wide range of from a low speed to a high speed. A rotor (1) is configured by a rotor core (2), a variable magnetic force magnet (3) and a fixed magnetic force magnet (4). A variable magnetic force magnet (3) and a fixed magnetic force magnet (4a) are overlapped in the magnetization direction thereof to form a series of magnets. The series of magnets is located within the rotor core at a position where the magnetization direction is in the direction of a d-axis. On either side of the series of magnets of the variable magnetic force magnet (3) and the fixed magnetic force magnet (4a), fixed magnetic force magnets (4b, 4b) are located at a position where the magnetization direction is in the direction of the d-axis. When the flux linkage of the variable magnetic force magnet is reduced, a current of an armature coil allows a magnetic field to act in the reverse direction to the magnetization direction of the variable magnetic force magnet. When the flux linkage of the variable magnetic force magnet is increased, a current of the armature coil allows a magnetic field to act in the same direction as the magnetization direction of the variable magnetic force magnet.

摘要翻译： 在退磁和磁化期间可以防止磁化电流的增加，并且可以在从低速到高速的宽范围内的高功率输出下实现可变速度操作。 转子（1）由转子铁芯（2），可变磁力磁铁（3）和固定磁力磁铁（4）构成。 可变磁力磁体（3）和固定磁力磁铁（4a）在其磁化方向上重叠以形成一系列磁体。 一系列磁体位于转子芯内的磁化方向为d轴方向的位置。 在可变磁力磁铁（3）和固定磁力磁铁（4a）的一系列磁铁的两侧，固定磁力磁铁（4b，4b）位于磁化方向为 d轴。 当可变磁力磁铁的磁链减小时，电枢线圈的电流允许磁场沿与可变磁力磁铁的磁化方向相反的方向作用。 当可变磁力磁铁的磁通增加时，电枢线圈的电流允许磁场沿与可变磁力磁铁的磁化方向相同的方向起作用。

公开(公告)号：US20120091848A1

公开(公告)日：2012-04-19

申请号：US13130206

申请日：2009-11-19

申请人： Kazuto Sakai ,  Yutaka Hashiba ,  Norio Takahashi ,  Kazuaki Yuuki

发明人： Kazuto Sakai ,  Yutaka Hashiba ,  Norio Takahashi ,  Kazuaki Yuuki

IPC分类号： H02K1/27

CPC分类号： H02K1/2766

摘要： An increase of the magnetization current can be prevented during demagnetization and magnetization, and a variable speed operation can be achieved at a high power output over a wide range of from a low speed to a high speed. A rotor (1) is configured by a rotor core (2), a variable magnetic force magnet (3) and a fixed magnetic force magnet (4). A variable magnetic force magnet (3) and a fixed magnetic force magnet (4a) are overlapped in the magnetization direction thereof to form a series of magnets. The series of magnets is located within the rotor core at a position where the magnetization direction is in the direction of a d-axis. On either side of the series of magnets of the variable magnetic force magnet (3) and the fixed magnetic force magnet (4a), fixed magnetic force magnets (4b, 4b) are located at a position where the magnetization direction is in the direction of the d-axis. When the flux linkage of the variable magnetic force magnet is reduced, a current of an armature coil allows a magnetic field to act in the reverse direction to the magnetization direction of the variable magnetic force magnet. When the flux linkage of the variable magnetic force magnet is increased, a current of the armature coil allows a magnetic field to act in the same direction as the magnetization direction of the variable magnetic force magnet.

摘要翻译： 在退磁和磁化期间可以防止磁化电流的增加，并且可以在从低速到高速的宽范围内的高功率输出下实现可变速度操作。 转子（1）由转子铁芯（2），可变磁力磁铁（3）和固定磁力磁铁（4）构成。 可变磁力磁体（3）和固定磁力磁铁（4a）在其磁化方向上重叠以形成一系列磁体。 一系列磁体位于转子芯内的磁化方向为d轴方向的位置。 在可变磁力磁铁（3）和固定磁力磁铁（4a）的一系列磁铁的两侧，固定磁力磁铁（4b，4b）位于磁化方向为 d轴。 当可变磁力磁铁的磁链减小时，电枢线圈的电流允许磁场沿与可变磁力磁铁的磁化方向相反的方向作用。 当可变磁力磁铁的磁通增加时，电枢线圈的电流允许磁场沿与可变磁力磁铁的磁化方向相同的方向起作用。

公开(公告)号：US08179068B2

公开(公告)日：2012-05-15

申请号：US12375076

申请日：2007-07-24

申请人： Kazuaki Yuuki ,  Kazuto Sakai ,  Hiroshi Mochikawa

发明人： Kazuaki Yuuki ,  Kazuto Sakai ,  Hiroshi Mochikawa

IPC分类号： H02P7/00

CPC分类号： H02P23/28 ,  H02K1/276 ,  H02K1/2766 ,  H02K15/03 ,  H02K21/042 ,  H02P21/0089 ,  H02P21/02 ,  H02P21/06 ,  H02P21/10 ,  H02P23/14 ,  Y02T10/643

摘要： A variable-flux motor drive system including a permanent-magnet motor including a permanent magnet, an inverter to drive the permanent-magnet motor, and a magnetize device to pass a magnetizing current for controlling flux of the permanent magnet. The permanent magnet is a variable magnet whose flux density is variable depending on a magnetizing current from the inverter. The magnetize device passes a magnetizing current that is over a magnetization saturation zone of magnetic material of the variable magnet. This system improves a flux repeatability of the variable magnet and a torque accuracy.

摘要翻译： 一种可变磁通电动机驱动系统，包括永磁体，包括永磁体的永磁电动机，用于驱动永磁电动机的逆变器，以及磁化装置，以通过用于控制永磁体的磁通的磁化电流。 永磁体是可变磁体，其磁通密度根据来自逆变器的磁化电流而变化。 磁化装置通过在可变磁体的磁性材料的磁化饱和区域之上的磁化电流。 该系统提高了可变磁体的磁通重复性和转矩精度。

公开(公告)号：US20100327787A1

公开(公告)日：2010-12-30

申请号：US12918770

申请日：2009-02-16

申请人： Kazuto Sakai ,  Kazuaki Yuuki

发明人： Kazuto Sakai ,  Kazuaki Yuuki

IPC分类号： H02P6/08 ,  H02K1/27 ,  H02K15/00 ,  B23P19/00

CPC分类号： H02K1/276 ,  H02K1/2766 ,  H02P21/22 ,  Y10T29/49009 ,  Y10T29/49822

摘要： The present invention provides a permanent-magnet-type rotating electrical machine capable of realizing variable-speed operation in a wide range from low speed to high speed at high output and improving, in a wide operating range, efficiency, reliability, and productivity. A narrow magnetic path 11 is formed in a rotor core 2 of a rotor 1 at an inter-pole yoke that magnetically connects adjacent pole core portions 7 to each other, so that the narrow magnetic path is magnetically saturated with flux of a magnetic field created by a predetermined magnetizing current passed to an armature coil 21. Each of first permanent magnets 3 at each of the pole core portions 7 is magnetized with a magnetic field created by a magnetizing current passed to the armature coil 21, to irreversibly change the flux amount of the first permanent magnet.

摘要翻译： 本发明提供一种永磁式旋转电机，能够实现从低速到高速，高输出的宽范围内的变速操作，并且在广泛的运行范围，效率，可靠性和生产率方面得到改善。 窄磁路11形成在转子1的转子铁心2中的磁极彼此相互磁极连接的极间磁轭处，使得窄磁路被产生的磁场的磁通量磁饱和 通过预定的通过电枢线圈21的磁化电流。各磁极部7的每个第一永久磁铁3被通过电枢线圈21的磁化电流产生的磁场磁化，不可逆地改变磁通量 的第一个永久磁铁。

公开(公告)号：US20100060223A1

公开(公告)日：2010-03-11

申请号：US12593146

申请日：2007-12-07

申请人： Kazuto Sakai ,  Kazuaki Yuuki

发明人： Kazuto Sakai ,  Kazuaki Yuuki

IPC分类号： H02P7/06 ,  H02K21/14

CPC分类号： H02P21/06 ,  H02K1/2766 ,  H02P2207/05 ,  Y10T29/49009 ,  Y10T29/49822

摘要： A permanent magnet rotating electrical machine capable of conducting a variable speed operation at high output in a wide range from low speed to high speed and improving efficiency and reliability in a wide operating range. Two kinds of permanent magnets having different shapes or different magnetic characteristics are embedded in a rotor core, to form a magnetic pole. The permanent magnets arranged at the magnetic pole include a permanent magnet whose product of coercive force and thickness along a magnetizing direction is small and the permanent magnet whose product of coercive force and thickness along the magnetizing direction is large. A magnetic field created by passing a current to an armature coil for a short time is used to irreversibly magnetize the permanent magnet whose product of coercive force and thickness along magnetizing direction is small, thereby changing a total linkage flux amount, and a positive d-axis current is passed when torque is large.

摘要翻译： 一种永磁式旋转电机，能够在从低速到高速的宽范围内以高输出进行变速运转，并能在较宽的运行范围内提高效率和可靠性。 将具有不同形状或不同磁特性的两种永磁体嵌入转子铁芯中，以形成磁极。 设置在磁极上的永磁体包括永磁体，其矫顽力和沿磁化方向的厚度的乘积小，并且永久磁铁的矫顽力和沿着磁化方向的厚度的乘积大。 使用通过使电流线圈短时间流过电流而产生的磁场，使永久磁铁不可逆地磁化，永久磁铁的矫顽力和沿磁化方向的厚度乘积小，从而改变总的交链磁通量， 当转矩大时，轴电流通过。