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公开(公告)号：US11949293B2
公开(公告)日：2024-04-02
申请号：US17280430
申请日：2019-09-26
Applicant: Nidec Corporation
Inventor： Shinji Takemoto , Tomoya Ueda , Mitsuhiro Takemoto , Yusuke Isogai
IPC: H02K1/27 , H02K1/2791 , H02K1/28 , H02K15/03
CPC classification number: H02K1/2791 , H02K1/28 , H02K15/03
Abstract: A rotor used in an outer rotor motor includes a rotor holder in a tubular shape extending along a center axis, a rotor core in a tubular shape extending in an axial direction and being fixed to a surface of the rotor holder, directed radially inward, and permanent magnets bonded to an inner circumferential surface of the rotor core and side by side in a circumferential direction. The rotor core includes projection portions projecting radially inward from the inner circumferential surface of the rotor core. One or more of the projection portions are in a gap between the permanent magnets adjacent to each other in the circumferential direction. Each of the projection portions has an axial length shorter than an axial length of each of the permanent magnets.
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公开(公告)号：US11293446B2
公开(公告)日：2022-04-05
申请号：US16668099
申请日：2019-10-30
Applicant: Nidec Corporation
Inventor： Shinji Takemoto , Kosuke Mizuike , Yoshitsugu Sasaguri
Abstract: An inline axial flow fan includes a first fan including a first impeller, a first motor portion, and a first case, and a second fan including a second impeller, a second motor portion, and a second case, the first fan and the second fan being positioned in sequence from one axial side to another axial side. The first case and the second case are accommodated in a housing, and only one of the first case and the second case includes multiple slits that connect the inside and the outside of the first case and the second case in the radial direction.
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公开(公告)号：US09746202B2
公开(公告)日：2017-08-29
申请号：US14554163
申请日：2014-11-26
Applicant: Nidec Corporation
Inventor： Shinji Takemoto
CPC classification number: F24H3/0423 , A45D20/10 , F24H9/0073
Abstract: A dryer includes a centrifugal impeller, a motor configured to rotate the impeller about a rotation axis which crosses a plane including a blowing axis, and a heater. The impeller is accommodated in a portion including a pair of side surfaces, each of which crosses the rotation axis, and an air inlet defined in at least one of the side surfaces. The impeller includes blades that are annular with the rotation axis as a center. The heater is supported on plate-shaped portions extending in a plurality of directions from the blowing axis in a cross-section perpendicular or substantially perpendicular to the blowing axis. A rear edge of each of the plate-shaped portions with respect to the blowing axis extends in a direction which crosses radially outer edges of the blades with respect to the rotation axis when viewed along the blowing axis.
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公开(公告)号：US11469633B2
公开(公告)日：2022-10-11
申请号：US16934051
申请日：2020-07-21
Applicant: Nidec Corporation
Inventor： Mitsuhiro Takemoto , Sho Fukuhara , Shinji Takemoto
Abstract: A motor includes a rotor with one or more magnets, a rotor core holding the one or more magnets, a spacer that contacts the one or more magnets, and a rotor holder. The rotor holder includes a holder lid portion and a holder tubular portion in a tubular shape extending to one side in the axial direction from a radially outer edge of the holder lid portion. The holder lid portion includes a holder first surface that extends radially inward from an inner surface of the holder tubular portion, a holder second surface that extends radially and is radially inward of the holder first surface and on the other side in the axial direction, and a connecting surface connecting the holder first surface and the holder second surface.
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公开(公告)号：US11063497B2
公开(公告)日：2021-07-13
申请号：US16299204
申请日：2019-03-12
Applicant: Nidec Corporation
Inventor： Shinji Takemoto , Tomoya Ueda , Kosuke Mizuike
Abstract: A drive device includes a hollow hub rotatable about hub shafts extending parallel to a center axis, a motor housed in the hub and fixed to the hub shafts, and a speed reducer connected to the motor and the hub. The motor includes a rotor including a motor shaft extending parallel to the hub shafts, a stator disposed outside the rotor in a radial direction, and a motor housing holding the stator therein. The drive device includes thermal grease thermally connecting the hub and the motor housing to each other.
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Patent Agency Ranking
公开(公告)号：US12074491B2
公开(公告)日：2024-08-27
申请号：US17839487
申请日：2022-06-14
Applicant: NIDEC CORPORATION
Inventor： Mitsuhiro Takemoto , Shinji Takemoto
CPC classification number: H02K3/50 , H02K5/1735 , H02K7/085 , H02K21/22 , H02K2203/06
Abstract: A motor includes: a rotor including a shaft rotatable about an axis extending in a vertical direction; a bearing rotatably supporting the shaft; a stationary portion including a stator; and a lead wire electrically connected to the stator. The stationary portion includes a housing located radially outward of the bearing and radially inward of the stator, and supporting the bearing and the stator, a base portion which is located axially below the stator and to which the housing is fixed, and a fixing member fixed to the base portion. The fixing member includes a cover portion covering a shaft lower end portion located at an axially lower end of the shaft when viewed from axially below. The cover portion has an opening portion that opens in an axial direction. The opening portion is located radially more inside than an inner peripheral surface of the shaft when viewed from axially below.
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公开(公告)号：US11548629B2
公开(公告)日：2023-01-10
申请号：US16793060
申请日：2020-02-18
Applicant: Nidec Corporation
Inventor： Shinji Takemoto , Kosuke Mizuike , Yoshitsugu Sasaguri
Abstract: A motor mounted on a drone includes a rotor including a propeller mounting portion with a propeller detachably attached, the rotor being rotatable about a central axis, a stator radially facing the rotor with a gap therebetween, and an auto-balancer capable of automatically correcting dynamic balance of the rotor.
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公开(公告)号：US11196317B2
公开(公告)日：2021-12-07
申请号：US16535278
申请日：2019-08-08
Applicant: Nidec Corporation
Inventor： Shinji Takemoto , Kenji Fukami
Abstract: A motor includes a stationary structure, and a rotor rotatable about a central axis with respect to the stationary structure. The stationary structure includes a stator including a coil, a bracket that supports the stator, and a circuit board disposed between the stator and the bracket. The bracket includes a board support that holds the circuit board between the bracket and the stator in an axial direction. The board support includes a wiring through hole that penetrates the board support in the axial direction and through which a wire extending from the circuit board passes, a lid that partially covers the wiring through hole, and a guide bridge that is located inside the wiring through hole when viewed in the axial direction and holds the wire between the lid and the guide bridge.
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公开(公告)号：US12258975B2
公开(公告)日：2025-03-25
申请号：US17914422
申请日：2021-02-26
Applicant: Nidec Corporation
Inventor： Shinji Takemoto , Satoshi Kajikawa
Abstract: An impeller for a centrifugal fan rotatable about a central axis extending in an axial direction includes a hub portion expanding radially outward about the central axis, and wings on a radially outer side of the hub portion. A cross-sectional shape of the wing in a circumferential direction is a wing shape.
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10.发明授权公开(公告)号：US11502563B2
公开(公告)日：2022-11-15
申请号：US16638457
申请日：2018-09-28
Applicant: NIDEC CORPORATION
Inventor： Tomoya Ueda , Shinji Takemoto , Yusuke Isogai
IPC: H02K1/28 , H02K1/27 , H02K21/16 , H02K1/276 , B25J9/12 , B62M9/00 , B62M6/40 , B64C39/02 , H02K29/03
Abstract: According to one aspect of the present disclosure, a rotor includes a plurality of permanent magnets and a support supporting the permanent magnet. The support includes at least one of an outside support fixed to a radial outside of the outer cores to circumferentially support an end face of the permanent magnet from both sides and an inside support fixed to a radial inside of the outer cores to circumferentially support the end face of the permanent magnet from both sides. Each of the outer cores includes an opposite face parallelly opposed to the end face of the permanent magnet in the circumferential direction. The outside support and the inside support each includes a support face circumferentially supporting the end face. The support face is disposed on a side closer to a center line of the permanent magnet than the opposite face in the circumferential direction.
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