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公开(公告)号：US11711004B2
公开(公告)日：2023-07-25
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
IPC分类号： H02K1/18 , H02K21/24 , H02K1/2793 , H02K1/28
CPC分类号： H02K21/24 , H02K1/182 , H02K1/2793 , H02K1/28 , H02K2213/03
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.
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公开(公告)号：US10832841B2
公开(公告)日：2020-11-10
申请号：US16383980
申请日：2019-04-15
发明人： Toshimitsu Takahashi
摘要： An electromagnetic steel sheet that can maintain satisfactory processability and thermostability, and exhibit a high space factor when used as, for example, a motor or transformer core material is provided. Such electromagnetic steel sheet comprises a coat containing an organic material provided on one outermost surface thereof, and a coat containing low-melting glass provided at least partially on the other outermost surface thereof. A motor core comprising such electromagnetic steel sheet is also provided. A method for producing such electromagnetic steel sheet and a method for producing such motor core are also provided.
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公开(公告)号：US20230318423A1
公开(公告)日：2023-10-05
申请号：US18331371
申请日：2023-06-08
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
IPC分类号： H02K21/24 , H02K1/18 , H02K1/28 , H02K1/2796
CPC分类号： H02K21/24 , H02K1/182 , H02K1/28 , H02K1/2796 , H02K2213/03
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.
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公开(公告)号：US10554107B2
公开(公告)日：2020-02-04
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.
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公开(公告)号：US11804741B2
公开(公告)日：2023-10-31
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
CPC分类号： H02K1/265 , H02K1/02 , H02K1/06 , H02K7/003 , H02K2213/03
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.
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公开(公告)号：US10535454B2
公开(公告)日：2020-01-14
申请号：US15291350
申请日：2016-10-12
发明人： Daisuke Okamoto , Toshimitsu Takahashi , Sinjiro Saigusa , Kohei Ishii , Naoki Iwata , Jung Hwan Hwang , Masashi Ohtsubo , Takeshi Hattori , Masashi Hara
摘要： Provided is a compressed powder core that can suppress a decrease in the inductance even when a high magnetic field (of greater than or equal to 40 kA/m) is applied to the compressed powder core while suppressing an iron loss and a decrease in the strength of the compressed powder core. The compressed powder core 1A has soft magnetic particles 11A and aluminum nitride layers 12A formed on the surface layers of the respective soft magnetic particles 11A. The compressed powder core 1A has a ratio of the first differential relative permeability μ′L to the second differential relative permeability μ′H satisfying a relationship of μ′L/μ′H≤6, and has a magnetic flux density of greater than or equal to 1.4 T when a magnetic field of 60 kA/m is applied. The soft magnetic particles of the compressed powder core 1A contain Si in the range of 1.0 to 3.0 mass % and have, when analyzed using XRD, a peak area ratio Sal/Sfe of greater than or equal to 4%, the peak area ratio Sal/Sfe being the ratio of the area Sal of a peak waveform derived from AlN to the area Sfe of a peak waveform derived from Fe.
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7.发明申请POWDER FOR MAGNETIC CORE, METHOD OF PRODUCING DUST CORE, DUST CORE, AND METHOD OF PRODUCING POWDER FOR MAGNETIC CORE 审中-公开用于磁芯的粉末，生产粉芯的方法，粉芯和制造用于磁芯的粉末的方法公开(公告)号：US20160071636A1
公开(公告)日：2016-03-10
申请号：US14847497
申请日：2015-09-08
发明人： Masashi OHTSUBO , Masaaki Tani , Takeshi Hattori , Junghwan Hwang , Masashi Hara , Shin Tajima , Shinjiro Saigusa , Kohei Ishii , Daisuke Okamoto , Toshimitsu Takahashi
IPC分类号： H01F1/33 , C21D1/26 , B22F1/00 , B22F1/02 , H01F1/20 , C22C38/02 , B22F3/24 , B22F3/02 , H01F41/02 , C21D6/00 , C22C38/06
CPC分类号： H01F1/33 , B22F1/0003 , B22F1/02 , B22F3/02 , B22F3/24 , C21D1/26 , C21D6/008 , C22C38/02 , C22C38/06 , H01F1/20 , H01F1/24 , H01F1/26 , H01F41/02 , H01F41/0246
摘要： A dust core includes soft magnetic particles, a first coating layer, a second coating layer, and a third coating layer. The first coating layer is made of aluminum oxide with which at least a part of surfaces of the soft magnetic particles are coated. The second coating layer is made of aluminum nitride with which at least a part of a surface of the first coating layer is coated. The third coating layer is made of low-melting-point glass with which at least a part of a surface of the second coating layer is coated. The low-melting-point glass has a softening point lower than an annealing temperature of the soft magnetic particles.
摘要翻译： 防尘芯包括软磁性颗粒，第一涂层，第二涂层和第三涂层。 第一涂层由氧化铝制成，软磁性颗粒的至少一部分表面被涂覆。 第二涂层由氮化铝制成，第一涂层的至少一部分表面被涂覆。 第三涂层由低熔点玻璃制成，第二涂层的至少一部分表面被涂覆。 低熔点玻璃的软化点低于软磁性粒子的退火温度。
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公开(公告)号：US20140126894A1
公开(公告)日：2014-05-08
申请号：US14124131
申请日：2013-01-22
发明人： Yasuo Ohsugi , Tsuyoshi Hamaya , Satoshi Arai , Eiji Yanagida , Shinya Sano , Masaaki Konda , Toshimitsu Takahashi , Yoji Sato
IPC分类号： C21D9/00
CPC分类号： C21D9/0068 , C21D1/09 , C21D1/26 , C21D1/34 , C21D8/12 , C21D9/00 , F27B5/14 , F27B2005/143 , F27D11/02 , H02K15/024 , H02K15/12
摘要： Provided is a method of annealing a metal member, including: disposing a first heater in an inner space of a hollow cylindrical metal member having an inner peripheral surface provided with plural teeth protruding toward a central direction, the first heater radiating infrared light and being disposed so as to extend parallel to a direction of a central axis of the metal member; heating the metal member from the inner space with the first heater; and gradually cooling the metal member after heating.
摘要翻译： 本发明提供一种退火金属部件的方法，包括：将第一加热器设置在具有向中心方向突出的多个齿的内周面的中空圆筒状金属构件的内部空间中，第一加热器照射红外线并配置 以便平行于所述金属构件的中心轴线的方向延伸; 用第一加热器从内部空间加热金属构件; 并在加热后逐渐冷却金属构件。
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