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公开(公告)号：US20240097533A1
公开(公告)日：2024-03-21
申请号：US18491951
申请日：2023-10-23
发明人： Hiroki ASO , Takaya SHIMOKAWA , Junichiro OYA , Naoki TAMURA
IPC分类号： H02K11/215 , F24F7/013 , H02K1/2733 , H02K7/08 , H02K15/03 , H02K21/14
CPC分类号： H02K11/215 , F24F7/013 , H02K1/2733 , H02K7/083 , H02K15/03 , H02K21/14
摘要： A rotor includes a resin magnet and a shaft fixed to the resin magnet. The resin magnet includes a first magnetic flux generating part having a first magnetic pole center and a first inter-pole part and a second magnetic flux generating part having a second magnetic pole center and a second inter-pole part. The first inter-pole part and the second inter-pole part are shifted to each other in a circumferential direction.
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公开(公告)号：US20240030756A1
公开(公告)日：2024-01-25
申请号：US18042877
申请日：2020-10-30
IPC分类号： H02K1/14
CPC分类号： H02K1/146 , H02K2213/03
摘要： An electric motor includes a rotor having 10×N (N is an integer equal to or larger than 1) magnetic poles and a stator including 9×N teeth. A center tooth includes a first main body and a first tooth end portion. A downstream-side tooth includes a second main body and a second tooth end portion. The electric motor satisfies TCR>TBR, where TCR is a maximum length of the first upstream-side portion in the first upstream-side radial direction of the first tooth end portion and TBR is a maximum length of the second upstream-side portion in the second upstream-side radial direction of the second tooth end portion.
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公开(公告)号：US20210376674A1
公开(公告)日：2021-12-02
申请号：US17255046
申请日：2018-08-02
发明人： Hiroki ASO , Takaya SHIMOKAWA , Junichiro OYA , Naoki TAMURA
IPC分类号： H02K1/27 , H02K21/14 , H02K29/08 , F24F1/0007
摘要： A motor includes a rotor, a stator, and a magnetic pole position detection element to detect a position of a magnetic pole of the rotor. The rotor includes a resin magnet having a first orientation and a second orientation, and a shaft fixed to the resin magnet, and the first and second orientations and are different from each other in a radial direction. The magnetic pole position detection element faces the resin magnet in an axial direction.
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公开(公告)号：US20210273528A1
公开(公告)日：2021-09-02
申请号：US17254265
申请日：2018-08-02
发明人： Hiroki ASO , Takaya SHIMOKAWA , Junichiro OYA , Naoki TAMURA
摘要： A rotor includes: a resin magnet including a first magnetic flux generating part and a second magnetic flux generating part; and a shaft fixed to the resin magnet. The first magnetic flux generating part has a first orientation. The second magnetic flux generating part has a second orientation different from the first orientation in a radial direction. A peak of magnetic flux density from the first magnetic flux generating part is larger than a peak of magnetic flux density from the second magnetic flux generating part.
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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：US20220376568A1
公开(公告)日：2022-11-24
申请号：US17770088
申请日：2019-12-12
发明人： Takaya SHIMOKAWA , Hiroki ASO , Naoki TAMURA
摘要： A rotor includes a plurality of cores stacked in an axial direction, a permanent magnet, and a nonmagnetic resin. The plurality of cores include a magnet insertion hole, a first opening communicating with one end of the magnet insertion hole in a circumferential direction, and an indent part communicating with the first opening and indented in the circumferential direction. The permanent magnet is disposed in the magnet insertion hole. The nonmagnetic resin is provided in the first opening and the indent part.
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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：US20220224556A1
公开(公告)日：2022-07-14
申请号：US17607481
申请日：2019-05-30
IPC分类号： H04L12/28 , H04L101/69
摘要： A connection management device is included in a terminal device, which is communicatively connected to a plurality of server devices. A location information acquirer acquires location information indicating a location where the terminal device exists. A region determiner determines based on the acquired location information, a region where the terminal device exists. A connection destination determiner determines, based on the determined region, which of the plurality of server devices is the server device to which the terminal device is to connect. A transmitter transmits to the determined server device a request for connection to connect to the server device.
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公开(公告)号：US20230243360A1
公开(公告)日：2023-08-03
申请号：US17785668
申请日：2020-02-25
发明人： Takaya SHIMOKAWA , Hiroki ASO , Naoki TAMURA , Kazuchika TSUCHIDA , Takanori WATANABE , Ryogo TAKAHASHI
IPC分类号： F04D25/06 , F04D29/66 , H02K7/14 , H02K1/2746
CPC分类号： F04D25/0646 , F04D29/66 , H02K7/14 , H02K1/2746
摘要： A blower includes a rotor that includes a shaft, a rotor core in an annular shape about at a central axis of the shaft, and permanent magnets attached to the rotor core. The permanent magnets form magnet magnetic poles, portions of the rotor core form virtual magnetic poles, and a number of magnetic poles including the magnet magnetic poles and the virtual magnetic poles is P. The blower includes a stator that surrounds the rotor from outside in a radial direction about the central axis and includes S slots arranged in a circumferential direction about the central axis, and N blades that are attached to the shaft and arranged in the circumferential direction. A combination of the number P of magnetic poles and the number S of slots is one of P=8 and S=9, P=10 and S=9, P=10 and S=12 and P=14 and S=12. The number N of blades is an integer greater than or equal to 2 and less than or equal to 10 excluding integral multiples of P/2.
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公开(公告)号：US20220243740A1
公开(公告)日：2022-08-04
申请号：US17623788
申请日：2019-08-05
发明人： Takaya SHIMOKAWA , Hiroki ASO , Naoki TAMURA
摘要： It is intended to provide a motor having a sufficient heat dissipation function even when a non-magnetic material having low thermal conductivity is used for a shaft of a motor using a consequent pole rotor. A motor 1 includes: a stator; a consequent pole rotor including a rotor core and a magnet; a casing housing the stator and the rotor; a shaft 8 including a non-magnetic material and fixed to the rotor; and heat dissipation blades 24 that are a first heat dissipation promoting means that rotates with the shaft 8. This promotes heat dissipation through a heat dissipation path from an inside of the motor 1 through the shaft 8, preventing problems due to overheat in the motor 1.
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