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1. 发明专利

JP2013009542A Drum washing machine using magnet motor 审中-公开
标题翻译：鼓风机使用磁铁电机
公开(公告)号：JP2013009542A
公开(公告)日：2013-01-10
申请号：JP2011141343
申请日：2011-06-27
申请人： Hitachi Appliances Inc , 日立アプライアンス株式会社
发明人： SAKAMOTO KUNIHIRO , NARITA HIROBUMI , TOYODA EIJI , KOHARAGI HARUO , KONISHI KUNIAKI , ENDO MASAKAZU , WAKUI SHINICHI
IPC分类号： H02K1/14 , D06F37/30 , H02K21/14
摘要： PROBLEM TO BE SOLVED: To provide a drum washing machine employing a magnet motor that, even when ferrite magnets with low coercive force are used, ensures requisite torque characteristics and also prevents demagnetization of the ferrite magnets.SOLUTION: In a drum washing machine, a magnet motor that drives a rotating drum undergoes a field-weakening operation during a spin-drying operation. The magnet motor includes a rotor and a stator. The rotor is configured by radial arrangement of permanent magnets that form magnetic poles. The stator has a plurality of slots formed in a stator core, and teeth around which concentrated winding armature coils are wound. The width of each of the teeth is made larger on a radially outer side that on a radially inner side.
摘要翻译：要解决的问题：提供一种采用磁电机的滚筒洗衣机，即使使用低矫顽力的铁氧体磁体，也能够确保必要的转矩特性，并且还能够防止铁氧体磁体的退磁。解决方案：在滚筒洗衣机中，驱动旋转滚筒的磁体马达在旋转干燥操作期间经历弱磁操作。磁铁包括转子和定子。转子由形成磁极的永磁体的径向布置构成。定子具有形成在定子铁芯中的多个槽和围绕集线绕组电枢线圈的齿。每个齿的宽度在径向内侧的径向外侧较大。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2013009541A Magnet motor and drum washing machine having magnet motor 有权
标题翻译：具有磁铁电机的磁铁电机和洗衣机
公开(公告)号：JP2013009541A
公开(公告)日：2013-01-10
申请号：JP2011141341
申请日：2011-06-27
申请人： Hitachi Appliances Inc , 日立アプライアンス株式会社
发明人： SAKAMOTO KUNIHIRO , NARITA HIROBUMI , TOYODA EIJI , KOHARAGI HARUO , KONISHI KUNIAKI , ENDO MASAKAZU , WAKUI SHINICHI
IPC分类号： H02K1/14 , D06F23/02 , H02K21/14
摘要： PROBLEM TO BE SOLVED: To provide a magnet motor that reduces noise, even when ferrite magnets are used, while ensuring properties.SOLUTION: A magnet motor includes: a stator 10 that has a plurality of slots 14 formed in a stator core 13, and teeth 12 around which concentrated armature windings 15 are wound; and a rotor 30 that is configured by radial arrangement of permanent magnets that form magnetic poles. An inner circumferential surface of each of the teeth 12 has a nonconcentric shape 17 convex toward the rotor 30. A bevel 16 is formed at each circumferential end of the nonconcentric shape 17.
摘要翻译：要解决的问题：即使在使用铁氧体磁体的同时确保性能的同时，也提供降低噪音的磁铁电动机。磁体电动机包括：定子10，其具有形成在定子芯13中的多个狭槽14和缠绕集中电枢绕组15的齿12; 以及由形成磁极的永磁体的径向配置构成的转子30。每个齿12的内圆周表面具有朝向转子30凸出的非同心形状17.在非同心形状17的每个圆周端处形成斜面16。版权所有（C）2013，JPO＆INPIT

3. 发明专利

JP2012217269A Rotor, magnet motor, and washing machine 有权
标题翻译：转子，磁铁电机和洗衣机
公开(公告)号：JP2012217269A
公开(公告)日：2012-11-08
申请号：JP2011080796
申请日：2011-03-31
申请人： Hitachi Appliances Inc , 日立アプライアンス株式会社
发明人： SAKAMOTO KUNIHIRO , NARITA HIROBUMI , TOYODA EIJI , KOHARAGI HARUO , KONISHI KUNIAKI , ENDO MASAKAZU , WAKUI SHINICHI
IPC分类号： H02K1/27
摘要： PROBLEM TO BE SOLVED: To provide a rotor, a magnet motor, and a washing machine excellent in productivity as well as capable of obtaining a desired magnetic flux amount.SOLUTION: A rotor 30 includes rotor cores 31, and magnetic elements which are objects of magnetization arranged on both sides of the rotor cores 31. A plurality of these are arranged in a circular ring shape and completely covered with resin material 33 to be fixed, then become magnetized by magnetization yokes from both inner diameter and outer diameter sides of the rotor cores 31 and magnetic elements so that the magnetization direction opposes to each other. Furthermore, after the magnetization, a shaft coupling member is disposed on the inner diameter side of the rotor cores 31 and the magnetic elements via a reinforcement member. Recessed parts 39a are formed on the rotor cores 31 so that a resin material 34, which molds the reinforce member, is filled and fused therein.
摘要翻译：要解决的问题：提供一种生产率优异并且能够获得期望的磁通量的转子，磁体电动机和洗衣机。解决方案：转子30包括转子芯31和作为磁化对象的磁性元件，其设置在转子芯31的两侧。多个这些以圆环形状布置，并被树脂材料33完全覆盖被固定，然后通过来自转子芯31和磁性元件的内径和外径侧的磁化轭磁化，使得磁化方向彼此相反。此外，在磁化之后，通过加强构件将轴联结构件设置在转子芯31的内径侧和磁性元件上。凹部39a形成在转子芯31上，使得将加强构件成形的树脂材料34填充并熔合在其中。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2007181304A Motor and method of manufacturing rotor 审中-公开
标题翻译：电动机和制造转子的方法
公开(公告)号：JP2007181304A
公开(公告)日：2007-07-12
申请号：JP2005376856
申请日：2005-12-28
申请人： Hitachi Appliances Inc , 日立アプライアンス株式会社
发明人： NARITA HIROBUMI , OKAWA TOMOHIRO , ENDO MASAKAZU
IPC分类号： H02K1/27 , H02K1/30 , H02K15/02
摘要： PROBLEM TO BE SOLVED: To improve the structure of a rotor core 2, to provide a motor by which a large rotative drive force can be obtained, and to improve the blanking of a core material, in a rotor of the motor constituted by comprising: the rotor core 2 formed by laminating electromagnetic steel sheets; a plurality of permanent magnets 3 composed of rare earth disposed along the axial direction of the rotor core 2, and a synthetic resin 5 that is integrally molded to the rotor core 2 so as to embed the permanent magnets 3 therein.
SOLUTION: In the rotor core 2, magnetic pole pieces 14 disposed so as to be protruded at the rotor side of the permanent magnets 3 are separated form a body of the rotor core 2 in all, and an induction voltage is increased by suppressing the leak of magnetic flux, thus constituting the magnetic pole pieces at the inside diameter side of the rotor core.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题为了提高转子铁芯2的结构，为了提供可以获得大的旋转驱动力的电动机，并且为了改善芯材的冲裁，在电动机的转子中构成包括：通过层叠电磁钢板形成的转子芯2; 沿着转子芯2的轴向设置的由稀土构成的多个永磁体3和与永久磁铁3一体地嵌入转子铁心2的一体成型的合成树脂5。解决方案：在转子铁心2中，设置成在永磁体3的转子侧突出设置的磁极片14全部由转子铁心2的主体分离，并且感应电压通过抑制磁通的泄漏，从而构成转子铁芯的内径侧的磁极片。版权所有（C）2007，JPO＆INPIT

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