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公开(公告)号：US09373992B2
公开(公告)日：2016-06-21
申请号：US14296116
申请日：2014-06-04
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Yutaka Hashiba , Kazuto Sakai , Norio Takahashi , Kazuaki Yuuki , Masanori Arata , Yusuke Matsuoka , Motoyasu Mochizuki , Tadashi Tokumasu
CPC classification number: H02K15/03 , H02K1/02 , H02K1/223 , H02K1/2766 , H02K21/028 , Y10T29/49009 , Y10T29/49012
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US08884576B2
公开(公告)日：2014-11-11
申请号：US13971541
申请日：2013-08-20
Applicant: Kabushiki Kaisha Toshiba
Inventor： Kazuaki Yuuki , Kazuto Sakai , Hiroshi Mochikawa
IPC: H02P1/46 , H02P23/00 , H02K1/27 , H02K15/03 , H02P21/00 , H02P21/02 , H02P21/06 , H02K21/04 , H02P21/10 , H02P23/14
CPC classification number: H02P23/28 , H02K1/276 , H02K1/2766 , H02K15/03 , H02K21/042 , H02P21/0089 , H02P21/02 , H02P21/06 , H02P21/10 , H02P23/14 , Y02T10/643
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US09680406B2
公开(公告)日：2017-06-13
申请号：US14198189
申请日：2014-03-05
Applicant: Kabushiki Kaisha Toshiba
Inventor： Kazuaki Yuuki , Kazuto Sakai , Hiroshi Mochikawa
IPC: H02P23/00 , H02K1/27 , H02K15/03 , H02P21/00 , H02P21/02 , H02P21/06 , H02K21/04 , H02P21/10 , H02P23/14 , H02P23/28
CPC classification number: H02P23/28 , H02K1/276 , H02K1/2766 , H02K15/03 , H02K21/042 , H02P21/0089 , H02P21/02 , H02P21/06 , H02P21/10 , H02P23/14 , Y02T10/643
Abstract: 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.
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公开(公告)号：US20140283374A1
公开(公告)日：2014-09-25
申请号：US14296177
申请日：2014-06-04
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Yutaka HASHIBA , Kazuto Sakai , Norio Takahashi , Kazuaki Yuuki , Masanori Arata , Yusuke Matsuoka , Motoyasu Mochizuki , Tadashi Tokumasu
IPC: H02K15/03
CPC classification number: H02K15/03 , H02K1/02 , H02K1/223 , H02K1/2766 , H02K21/028 , Y10T29/49009 , Y10T29/49012
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US20140184133A1
公开(公告)日：2014-07-03
申请号：US14198189
申请日：2014-03-05
Applicant: Kabushiki Kaisha Toshiba
Inventor： Kazuaki Yuuki , Kazuto Sakai , Hiroshi Mochikawa
CPC classification number: H02P23/28 , H02K1/276 , H02K1/2766 , H02K15/03 , H02K21/042 , H02P21/0089 , H02P21/02 , H02P21/06 , H02P21/10 , H02P23/14 , Y02T10/643
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US09496774B2
公开(公告)日：2016-11-15
申请号：US14296238
申请日：2014-06-04
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Yutaka Hashiba , Kazuto Sakai , Norio Takahashi , Kazuaki Yuuki , Masanori Arata , Yusuke Matsuoka , Motoyasu Mochizuki , Tadashi Tokumasu
CPC classification number: H02K15/03 , H02K1/02 , H02K1/223 , H02K1/2766 , H02K21/028 , Y10T29/49009 , Y10T29/49012
Abstract: 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.
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公开(公告)号：US09490684B2
公开(公告)日：2016-11-08
申请号：US14296177
申请日：2014-06-04
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Yutaka Hashiba , Kazuto Sakai , Norio Takahashi , Kazuaki Yuuki , Masanori Arata , Yusuke Matsuoka , Motoyasu Mochizuki , Tadashi Tokumasu
CPC classification number: H02K15/03 , H02K1/02 , H02K1/223 , H02K1/2766 , H02K21/028 , Y10T29/49009 , Y10T29/49012
Abstract: 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.
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公开(公告)号：US20140285051A1
公开(公告)日：2014-09-25
申请号：US14296238
申请日：2014-06-04
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Yutaka Hashiba , Kazuto Sakai , Norio Takahashi , Kazuaki Yuuki , Masanori Arata , Yusuke Matsuoka , Motoyasu Mochizuki , Tadashi Tokumasu
IPC: H02K1/22
CPC classification number: H02K15/03 , H02K1/02 , H02K1/223 , H02K1/2766 , H02K21/028 , Y10T29/49009 , Y10T29/49012
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US20130334991A1
公开(公告)日：2013-12-19
申请号：US13971541
申请日：2013-08-20
Applicant: Kabushiki Kaisha Toshiba
Inventor： Kazuaki YUUKI , Kazuto Sakai , Hiroshi Mochikawa
CPC classification number: H02P23/28 , H02K1/276 , H02K1/2766 , H02K15/03 , H02K21/042 , H02P21/0089 , H02P21/02 , H02P21/06 , H02P21/10 , H02P23/14 , Y02T10/643
Abstract: 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.
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