发明名称 |
PERMANENT MAGNET ELECTRIC MOTOR |
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.
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申请公布号 |
US2011304235(A1) |
申请公布日期 |
2011.12.15 |
申请号 |
US200913139889 |
申请日期 |
2009.12.15 |
申请人 |
HASHIBA YUTAKA;SAKAI KAZUTO;TAKAHASHI NORIO;YUUKI KAZUAKI;ARATA MASANORI;MATSUOKA YUSUKE;MOCHIZUKI MOTOYASU;TOKUMASU TADASHI;KABUSHIKI KAISHA TOSHIBA |
发明人 |
HASHIBA YUTAKA;SAKAI KAZUTO;TAKAHASHI NORIO;YUUKI KAZUAKI;ARATA MASANORI;MATSUOKA YUSUKE;MOCHIZUKI MOTOYASU;TOKUMASU TADASHI |
分类号 |
H02K3/16;H02K15/02 |
主分类号 |
H02K3/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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