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公开(公告)号：US20220385140A1
公开(公告)日：2022-12-01
申请号：US17789984
申请日：2020-02-26
摘要： A fan includes a rotor having a shaft, a rotor core having an annular shape about a center axis of the shaft, and a permanent magnet fixed to the rotor core, the permanent magnet forming a magnet magnetic pole, a part of the rotor core forming a virtual magnetic pole, a stator surrounding the rotor from outside in a radial direction about the center axis, a rotating blade fixed to the shaft and formed of a nonmagnetic material, and a frame surrounding the stator from outside in the radial direction and formed of a nonmagnetic material.
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公开(公告)号：US20210050762A1
公开(公告)日：2021-02-18
申请号：US16968911
申请日：2018-02-28
IPC分类号： H02K5/20 , H02K5/24 , H02K9/06 , H02K11/215 , H02K21/16 , F04D25/06 , F04D29/40 , F04D29/66 , A47L5/22 , A47K10/48
摘要： An electric blower includes a motor including a rotor having a rotation shaft, a stator provided to surround the rotor, and a sensor mounted on the stator and facing the rotor, a moving blade mounted at one end side of the rotation shaft in an axial direction of the rotation shaft, a frame housing the stator and having a hole on a side facing to the moving blade, a first air path outside the frame, a second air path inside the frame, and an air guide member for guiding an airflow generated by the moving blade to the second air path.
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公开(公告)号：US20200237166A1
公开(公告)日：2020-07-30
申请号：US16486368
申请日：2017-05-01
发明人： Naho ADACHI , Takashi IKEDA , Kazuchika TSUCHIDA , Mamoru HAYATSU , Mitsumasa HAMAZAKI , Masaya TERAMOTO
摘要： An electric blower includes a motor unit, a shaft, a centrifugal impeller, a fan cover, a motor unit case, and a bracket located away from centrifugal impeller and toward motor unit in a direction in which a central axis of the shaft extends. The bracket includes a first portion located outward of the vent in a radial direction, and a second portion located outward of the first portion and outward of an outer circumference of the motor unit case in the radial direction. A first airflow passage and a second airflow passage are formed in the bracket, the first and second airflow passages communicate with an airflow passage formed by the centrifugal impeller and the fan cover.
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公开(公告)号：US20190136872A1
公开(公告)日：2019-05-09
申请号：US16096884
申请日：2016-07-13
发明人： Kazuchika TSUCHIDA , Naho ADACHI
IPC分类号： F04D29/62 , F04D29/056 , F04D29/04 , F04D25/16 , F04D29/053 , F16C19/54 , F04D17/08 , B25F5/00
摘要： An electric blower includes: a motor including a rotary shaft; a first centrifugal fan fixed to a first end side of the rotary shaft; a second centrifugal fan fixed to a second end side of the rotary shaft opposite to the first end side; and a casing surrounding the motor, the first centrifugal fan and the second centrifugal fan. In the electric blower, first force applied by the first centrifugal fan to the rotary shaft in a first direction in an axial direction of the rotary shaft and second force applied by the second centrifugal fan to the rotary shaft in a second direction in the axial direction of the rotary shaft are opposite to each other during rotation of the rotary shaft.
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公开(公告)号：US20190027982A1
公开(公告)日：2019-01-24
申请号：US16070542
申请日：2016-03-25
摘要： A rotor includes a rotor core and a magnet inserted into a magnet insertion hole formed in the rotor core. The magnet insertion hole extends in parallel with the rotation axis of the rotor core and, when viewed along the rotation axis, has an arcuate shape having a central portion projecting toward the rotation axis. The arcuate shape of the magnet insertion hole is formed such that the arcuate shape includes a first arcuate surface and a second arcuate surface that has a center identical to a center of the first arcuate surface and that has a radius larger than the radius of the first arcuate surface. The second arcuate surface includes two projections projecting toward the first arcuate surface. The magnet is inserted between the two projections and makes contact with the two projections.
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公开(公告)号：US20170222528A1
公开(公告)日：2017-08-03
申请号：US15500609
申请日：2014-08-29
发明人： Kazuchika TSUCHIDA
CPC分类号： H02K21/16 , F25B1/04 , F25B31/008 , F25B31/026 , F25B49/02 , F25B2341/0661 , F25B2400/0409 , F25B2600/2501 , F25B2600/2515 , F25B2700/21152 , H02K1/146 , H02K1/276 , H02K3/02 , H02K2213/03
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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7.发明申请ELECTRIC MOTOR WITH EMBEDDED PERMANENT MAGNET, COMPRESSOR, AND REFRIGERATION/AIR-CONDITIONING DEVICE 有权嵌入式永久磁铁，压缩机和制冷/空调装置的电动马达公开(公告)号：US20160172913A1
公开(公告)日：2016-06-16
申请号：US14909497
申请日：2013-09-25
CPC分类号： H02K1/276 , F04C18/00 , F04C29/0085 , F04C2240/40 , F25B31/026 , H02K1/2766
摘要： In an interior permanent magnet motor, at least one magnetic pole center slit and a plurality of side slits are formed between a rotor outer peripheral surface of a rotor and a radially-outer insertion hole contour surface of a magnet insertion hole. The plurality of side slits are formed so that at least one side slit is formed on each of both sides of the magnetic pole center slit in a width direction. The area of the magnetic pole center slit is smaller than the area of each of the plurality of side slits. A width of each of the plurality of side slits is larger than an interval between the adjacent slits.
摘要翻译： 在内置永磁电动机中，在转子的转子外周面和磁铁插入孔的径向外插入孔轮廓面之间形成有至少一个磁极中心狭缝和多个侧缝。 形成多个侧缝，使得在磁极中心狭缝的宽度方向的两侧的每一侧形成至少一个侧缝。 磁极中心狭缝的面积小于多个侧缝隙的面积。 多个侧狭缝中的每一个的宽度大于相邻狭缝之间的间隔。
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公开(公告)号：US20230035739A1
公开(公告)日：2023-02-02
申请号：US17793451
申请日：2020-02-27
发明人： Takaya SHIMOKAWA , Hiroki ASO , Kazuchika TSUCHIDA , Takanori WATANABE , Ryogo TAKAHASHI , Naoki TAMURA
摘要： An outdoor unit includes a motor and a heat exchanger. The motor includes a rotor, a stator, and a heat dissipation member. The rotor is rotatable about an axis, and has a rotor core and a permanent magnet attached to the rotor core. The permanent magnet forms a magnet magnetic pole. A part of the rotor core forms a virtual magnetic pole. The stator surrounds the rotor from outside in a radial direction about the axis. The heat dissipation member is disposed on a side of the stator in a direction of the axis. The heat exchanger is disposed to face the heat dissipation member in the direction of the axis.
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公开(公告)号：US20220345005A1
公开(公告)日：2022-10-27
申请号：US17642435
申请日：2019-11-14
发明人： Kazuchika TSUCHIDA , Naoki TAMURA
摘要： A rotor includes a shaft extending in an axial direction, a cylindrical magnet portion provided at an outer peripheral portion of the shaft, a cylindrical scattering-prevention member provided so as to cover an outer peripheral surface of the magnet portion, a first balancing member provided at one end of the magnet portion in the axial direction, and a second balancing member provided at the other end of the magnet portion in the axial direction from which one end side of the shaft extends in the axial direction and having a diameter smaller than the inner diameter of the scattering-prevention member and the second balancing member has an end surface in contact with the magnet portion, the end surface being not surrounded by the scattering-prevention member.
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公开(公告)号：US20220248921A1
公开(公告)日：2022-08-11
申请号：US17611989
申请日：2019-06-07
发明人： Kazuchika TSUCHIDA
IPC分类号： A47L9/04
摘要： A cleaner head includes a housing having a suction port facing a cleaning target surface, a first rotary brush provided in the housing, a second rotary brush provided in the housing, and a suction area provided between the first rotary brush and the second rotary brush and connecting to the suction port. The first rotary brush and the second rotary brush rotate in directions opposite to each other.
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