-
公开(公告)号：US20210083534A1
公开(公告)日：2021-03-18
申请号：US16999704
申请日：2020-08-21
IPC分类号： H02K1/27
摘要： A magnet embedded type motor capable of reducing a counter electromotive voltage while improving a torque is provided. The magnet embedded type motor of the present disclosure includes a stator and a rotor rotatably disposed inside the stator. The stator includes a stator core and a coil wound around the stator core. The rotor includes a rotor core and a plurality of magnet groups embedded in the rotor core along a circumferential direction. The plurality of magnet groups form a plurality of respective magnetic poles. A magnetic material constituting the rotor core has a saturation magnetic flux density higher than a saturation magnetic flux density of a magnetic material constituting the stator core by 0.2 T or more.
-
公开(公告)号：US20220203440A1
公开(公告)日：2022-06-30
申请号：US17545245
申请日：2021-12-08
发明人： Mayumi TAKAZAWA , Kazuaki HAGA , Daisuke ICHIGOZAKI , Masaaki ITO , Hisanori KOMA , Shinya SANO , Kensuke KOMORI , Keiu KANADA
摘要： Provided is a rare earth magnet that allows suppressing deterioration of magnetic properties and a method for manufacturing the same. The rare earth magnet of the present disclosure includes a magnet body containing a rare earth element R1, a transition metal element T, and boron B and includes a main phase. A region in the vicinity of a corner portion of the magnet body of a constituent surface constituting a surface of the magnet body is a processed surface on which a removal process has been performed, and a region closer to a center than the region in the vicinity of the corner portion of the constituent surface is a non-processed surface on which the removal process is not performed.
-
公开(公告)号：US20180152087A1
公开(公告)日：2018-05-31
申请号：US15806721
申请日：2017-11-08
摘要： A manufacturing method for a rotor core included in a rotor of a motor punches an electromagnetic steel sheet includes punching a plurality of plates for rotor core from an electromagnetic steel sheet; producing a rotor-core precursor by stacking up the plates for rotor core; manufacturing a rotor core by annealing an outer circumferential region of the rotor-core precursor at a first predetermined temperature, and annealing an inner circumferential region of the rotor-core precursor at a second predetermined temperature; the first predetermined temperature being a temperature at which grain growth of crystals of the electromagnetic steel sheet is promoted; and the second predetermined temperature being a temperature at which grain growth of the crystals of the electromagnetic steel sheet is not promoted.
-
公开(公告)号：US20220376567A1
公开(公告)日：2022-11-24
申请号：US17661831
申请日：2022-05-03
发明人： Mayumi TAKAZAWA , Kazuaki HAGA , Toshimitsu TAKAHASHI , Takuya NOMURA , Shinya SANO , Yasuhide YAGYU , Takeshi TOMONAGA , Hisanori KOMA , Keiu KANADA
摘要： A motor includes a rotor fixed to a rotary shaft, a stator arranged so as to surround the rotor with a gap from the rotor in a radial direction orthogonal to an axis direction of the rotary shaft, and a case accommodating the rotor and the stator. The rotor includes a plurality of rotor cores made from a soft magnetic material, and a rotor fixing member that fixes the rotor cores. The stator includes a plurality of stator cores made from a soft magnetic material, a stator fixing member that fixes the stator cores, and coils wound around the stator cores, respectively. The motor includes at least two sets of the rotor and the stator, and the sets are stacked in an axis direction of the rotary shaft.
-
公开(公告)号：US20210328490A1
公开(公告)日：2021-10-21
申请号：US17227653
申请日：2021-04-12
发明人： Keiu KANADA , Kazuaki HAGA , Toshimitsu TAKAHASHI , Mayumi TAKAZAWA , Takuya NOMURA , Shinya SANO , Takeshi TOMONAGA , Hisanori KOMA , Yasuhide YAGYU , Kensuke KOMORI , Tatsuhiko HIRANO , Masaaki ITO , Hiroaki WAKIMOTO
摘要： In an axial gap motor, a rotor includes a plurality of rotor cores fixed in a circumferential direction of a rotor base, and a stator includes a plurality of stator cores fixed in a circumferential direction of a stator base, and coils wound around the stator cores. End faces of each of the rotor cores and end faces of the corresponding stator core are opposed to each other while being exposed to each other.
-
-
-
-
搜索结果
5 条记录 (耗时 0.017 秒)
