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公开(公告)号：US20240322620A1
公开(公告)日：2024-09-26
申请号：US18578161
申请日：2021-08-30
发明人： Kazuchika TSUCHIDA , Ryogo TAKAHASHI , Daisuke MORISHITA , Takaya SHIMOKAWA , Takanori WATANABE
摘要： An electric motor includes a stator including a stator core, a first insulator provided on the stator core, a winding wound on the first insulator, a rotor including a rotor core, and a second insulator covering the stator. The stator core is shorter than the rotor core in an axial direction. The stator includes a magnetic material. The magnetic material is fixed by the first insulator and faces the rotor core. Density of the second insulator is greater than density of the first insulator.
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公开(公告)号：US20230039239A1
公开(公告)日：2023-02-09
申请号：US17792006
申请日：2020-02-27
摘要： A rotor is a consequent pole rotor. The rotor includes a first magnetic pole region functioning as a first magnetic pole, a second magnetic pole region functioning as a second magnetic pole that is a pseudo-magnetic pole, a shaft disposed in a shaft insertion hole, and a nonmagnetic member coupling the shaft to the rotor core. The nonmagnetic member includes a beam extending from the shaft to the second magnetic pole region.
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公开(公告)号：US20210211029A1
公开(公告)日：2021-07-08
申请号：US17209950
申请日：2021-03-23
发明人： Kazuchika TSUCHIDA
摘要： A compressor includes: a stator core including a plurality of teeth around which an aluminum winding wire is wound in a concentrated manner; a rotor core disposed on an inner diameter side of the stator core and including a plurality of magnet insertion holes; and a plurality of ferrite magnets inserted in the magnet insertion holes, in which when a width of a winding wire portion formed in each of the teeth is represented as A, a length in an axis direction of the stator core is represented as L, and the number of slots is represented as S, the stator core has a shape that satisfies a relation of 0.3
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公开(公告)号：US20210119497A1
公开(公告)日：2021-04-22
申请号：US17137617
申请日：2020-12-30
IPC分类号： H02K1/14 , H02K11/215 , H02K3/32
摘要： An electric motor includes a stator including four split cores, and a rotor having four magnetic poles. Each of the split cores includes a yoke and a tooth. An angle θ1 [degree] formed by a side surface of the tooth and a side surface of the yoke on an inner side in a radial direction of the stator satisfies 90 degrees ≤θ1
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公开(公告)号：US20210050753A1
公开(公告)日：2021-02-18
申请号：US16976500
申请日：2018-03-26
发明人： Kazuchika TSUCHIDA , Sachiko KAWASAKI , Mitsumasa HAMAZAKI , Takayuki ONIHASHI , Yutaka NOMIYAMA
摘要： A stator includes four split cores arranged in the circumferential direction. Each split core includes a yoke including a pair of joint parts, and a tooth. The shape of an end of the tooth is asymmetrical. An angle θ1 (degrees) formed by a side surface of the tooth and a side surface of the yoke on the inner side in the radial direction of the stator satisfies 90 degrees
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公开(公告)号：US20200318646A1
公开(公告)日：2020-10-08
申请号：US16606800
申请日：2017-06-22
发明人： Kazuchika TSUCHIDA , Naho ADACHI
摘要： An electric blower includes an air blowing unit including a mixed-flow fan to generate a current of air, a motor to rotate the mixed-flow fan, and a housing including a first portion surrounding the mixed-flow fan in a circumferential direction, and a second portion surrounding the motor in the circumferential direction. The inner diameter of the second portion is smaller than the inner diameter of the first portion.
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公开(公告)号：US20190006896A1
公开(公告)日：2019-01-03
申请号：US16064033
申请日：2016-02-12
CPC分类号： H02K1/278 , F25B31/026 , H02K1/276 , H02K1/2766 , H02K5/225 , H02K5/24 , H02K7/14 , H02K11/33 , H02K2213/03
摘要： In an electric motor, a first magnet and a second magnet are accommodated in magnet accommodating apertures of a rotor core. On outer circumferential core portions that exist on a radially outer side of the magnet accommodating apertures, two slits as a pair of first slits, and two slits that are respectively adjacent to each of the first slits are disposed circumferentially outside the pair of first slits as a pair of second slits. The outer circumferential core portions include: a first magnetic portion that exists between the pair of first slits; and a pair of second magnetic portions that respectively exist between the first slits and the second slits. An inter-magnet space portion that exists between the first magnet and the second magnet is positioned within a range of the first magnetic portion in the circumferential direction of the rotor.
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公开(公告)号：US20180248426A1
公开(公告)日：2018-08-30
申请号：US15756182
申请日：2015-10-30
摘要： A motor includes a stator, a rotor including a rotor core having a magnet insertion hole, and a plurality of permanent magnets disposed in the magnet insertion hole of the rotor core and having two permanent magnets adjacent to each other. The rotor core has a first magnet holding portion in the magnet insertion hole, and a second magnet holding portion at an end of the magnet insertion hole in a circumferential direction. The rotor core has a plurality of electromagnetic steel sheets stacked in an axial direction. Relationships A>B and A>C are satisfied, where a number of the plurality of electromagnetic steel sheets is represented by A, a number of electromagnetic steel sheets having the first magnet holding portions is represented by B, and a number of electromagnetic steel sheets having the second magnet holding portions is represented by C.
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29.发明申请INTERIOR PERMANENT MAGNET ELECTRIC MOTOR, COMPRESSOR, AND REFRIGERATING AND AIR-CONDITIONING DEVICE 审中-公开内置永磁电机，压缩机，制冷和空调设备公开(公告)号：US20170070112A1
公开(公告)日：2017-03-09
申请号：US15308920
申请日：2014-07-01
IPC分类号： H02K1/27
CPC分类号： H02K1/2766 , H02K21/16
摘要： Provided is an interior permanent magnet motor, including: a stator; and a rotor, in which an outline of each of magnet insertion holes includes a radially inner-side line, a radially outer-side line, a pair of side lines, a pair of first round portions, and a pair of second round portions, in which a thin portion is formed between an outer peripheral surface of the rotor and each of the side lines, in which each of the first round portions is provided between a corresponding end of the corresponding radially outer-side line and a corresponding end of the corresponding side line, and in which each of the second round portions is provided between a corresponding end of the corresponding radially inner-side line and a corresponding end of the corresponding side line.
摘要翻译： 提供一种内部永磁电动机，包括：定子; 以及转子，其中每个磁体插入孔的轮廓包括径向内侧线，径向外侧线，一对侧线，一对第一圆形部分和一对第二圆形部分， 其中在转子的外周面和每条侧线之间形成有薄壁部分，其中每个第一圆形部分设置在对应的径向外侧线的相应端部与相应的径向外侧线的相应端部之间 相应的侧线，并且其中每个第二圆形部分设置在相应的径向内侧线的相应端部和相应侧线的对应端部之间。
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30.发明申请PERMANENT MAGNET EMBEDDED ELECTRIC MOTOR, COMPRESSOR, AND A REFRIGERATING AND AIR CONDITIONING DEVICE 审中-公开永磁电动机电动机，压缩机和制冷空调装置公开(公告)号：US20160241092A1
公开(公告)日：2016-08-18
申请号：US15027013
申请日：2014-09-01
发明人： Masahiro NIGO , Kazuchika TSUCHIDA , Kazuhiko BABA
CPC分类号： H02K1/185 , F04C18/344 , F04C29/005 , F04C29/0085 , F04C29/02 , F04C2210/22 , F04C2240/20 , F04C2240/30 , F04C2240/50 , F04C2240/60 , H02K1/12 , H02K1/14 , H02K1/146 , H02K1/27 , H02K1/276 , H02K21/16 , H02K2213/03
摘要： A permanent magnet embedded electric motor includes a stator core disposed inside the frame and having a back yoke and a plurality of magnetic pole teeth; a rotor disposed on an inner diameter side of the plurality of magnetic pole teeth; and compression sections in which compression stress higher than compression stress occurring in the back yoke due to pressing force generated between the frame and the back yoke occurs. A compression section group having a set of two or more compression sections and of the plurality of compression sections is disposed on an outer circumferential section of the stator core. A sum of the rotating direction widths of the plurality of compression sections constituting the compression section group is smaller than a radial direction thickness of the frame.
摘要翻译： 永磁体嵌入式电动机包括：设置在框架内的定子铁心，具有背轭和多个磁极齿; 设置在所述多个磁极齿的内径侧的转子; 以及压缩部，其中由于在框架和后轭铁之间产生的按压力而产生在背轭中产生的压缩应力的压缩应力。 在定子铁心的外周部设置有具有两个以上压缩部和多个压缩部的一组的压缩部组。 构成压缩部组的多个压缩部的旋转方向宽度的总和小于框的径向厚度。
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