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公开(公告)号：US20200052535A1
公开(公告)日：2020-02-13
申请号：US16483816
申请日：2018-02-08
Applicant: NIDEC SANKYO CORPORATION
Inventor： Masaki HARADA , Hiroki KURATANI
Abstract: A motor may include a rotor comprising a rotating shaft and a bearing component structured to rotatably support. The bearing component may include a sliding surface that the rotor sliding-contacts from a first side in an axial direction. The rotor may include a holding member structured to hold the rotating shaft from an outer circumferential side; a magnet held by the holding member; and a metal component fixed to the rotating shaft and held by the holding member so as to protrude to the outer circumferential side from the rotating shaft.
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公开(公告)号：US20190036412A1
公开(公告)日：2019-01-31
申请号：US16043175
申请日：2018-07-24
Applicant: NIDEC SANKYO CORPORATION
Inventor： Masaki HARADA , Hiroki KURATANI , Takashi YAMAMOTO
IPC: H02K3/52 , H02K1/14 , H02K1/27 , H02K3/44 , H02K5/167 , H02K5/22 , H02K7/08 , H02K7/14 , F04D13/06
Abstract: A motor includes a rotor, a stator having coils, a connector for supplying electrical power to the coils, and a resin sealing member. The resin sealing member comprises an opposite-to-output side sealing part and a connector sealing part covering the connector. The connector comprises a frame part into which the cable side connector is to be inserted, and the opposite-to-output side sealing part comprises a first protruded part and a second protruded part. A tip end face of the first protruded part and a tip end face of the second protruded part are located on one imaginary face intersecting the rotation center line, a tip end on the opposite-to-output side of the frame part is located on the output side with respect to the imaginary face, and the second protruded part is provided at a position closer to the frame part between the first protruded part and the frame part.
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公开(公告)号：US20200052563A1
公开(公告)日：2020-02-13
申请号：US16485950
申请日：2018-02-07
Applicant: NIDEC SANKYO CORPORATION
Inventor： Masaki HARADA , Hiroki KURATANI , Nobuki KOKUBO , Takashi YAMAMOTO
Abstract: A motor may include a rotor; a stator disposed on an outer peripheral side of the rotor; and a resin sealing member covering the stator. The stator may include a stator core; a coil wound around the stator core; and a connector disposed on an outer peripheral side of the stator core. The resin sealing member may include a connector sealing part protruding to the outer peripheral side of the stator core and covering the connector. The connector may include a connection opening through which an external connector is attached and detached, and the connection opening protrudes in an axial direction of the rotor from the connector sealing part and is opened in the direction of the axis.
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公开(公告)号：US20200021161A1
公开(公告)日：2020-01-16
申请号：US16485939
申请日：2018-02-13
Applicant: NIDEC SANKYO CORPORATION
Inventor： Takashi YAMAMOTO , Hiroki KURATANI , Nobuki KOKUBO , Masaki HARADA
Abstract: A motor may include a rotor including a rotating shaft that protrudes to a first side in an axial direction; a stator disposed on an outer peripheral side of the rotor; a resin sealing member that covers the stator; and a cover member that is disposed on the first side of the resin sealing member and supports the rotating shaft. The resin sealing member may include a resin sealing member side position regulating surface that makes contact in the axial direction with a cover member side position regulating surface provided on the cover member, and a resin sealing member side securing surface that faces, in the axial direction and with a gap, a cover member side securing surface provided on the cover member. At least a portion of the resin sealing member side securing surface is secured to the cover member side securing surface via an adhesive agent layer.
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公开(公告)号：US20190036413A1
公开(公告)日：2019-01-31
申请号：US16043177
申请日：2018-07-24
Applicant: NIDEC SANKYO CORPORATION
Inventor： Takashi YAMAMOTO , Masaki HARADA
IPC: H02K5/167 , H02K1/14 , H02K1/27 , H02K3/44 , H02K3/52 , H02K5/22 , H02K7/08 , H02K7/14 , F04D13/06 , F16C17/02
Abstract: A motor includes a rotor having an output shaft and a rotor main body, a bearing member for supporting the output shaft movable in an axial line direction and rotatable around the axial line, and a bearing holding member holding the bearing member. The bearing member has a tube part supporting the output shaft and a slidably contacting part capable of slidably contacting with the rotor main body. The bearing holding member has an opposed face facing the rotor main body and a recessed part provided in the opposed face. The tube part of the bearing member is inserted into the recessed part and is separated from a bottom face of the recessed part. A space between the bottom face of the recessed part and the tube part is structured as a lubricant storage part and a communication path is provided between the bearing holding member and the bearing member.
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Patent Agency Ranking
公开(公告)号：US20200021162A1
公开(公告)日：2020-01-16
申请号：US16485946
申请日：2018-02-07
Applicant: NIDEC SANKYO CORPORATION
Inventor： Nobuki KOKUBO , Takashi YAMAMOTO , Hiroki KURATANI , Masaki HARADA
Abstract: A motor may include a rotor including a rotating shaft and a magnet a bearing member; a stator including a plurality of coils arranged on the rotor; and a resin sealing member. The resin sealing member may include a bottom portion that covers the bearing member and the plurality of coils from a first direction side along an axis of the rotating shaft. The bottom portion may include a cylindrical bearing support section which surrounds the bearing member from an outer peripheral side in a radial direction, a coil sealing section positioned on the first direction side of the coils, and a connection section that connects between the bearing support section and the coil sealing section. A thickness of the connection section in an axial direction may be smaller than a thickness of the bearing support section and the coil sealing section.
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公开(公告)号：US20200021160A1
公开(公告)日：2020-01-16
申请号：US16485933
申请日：2018-02-07
Applicant: NIDEC SANKYO CORPORATION
Inventor： Hiroki KURATANI , Takashi YAMAMOTO , Nobuki KOKUBO , Masaki HARADA
Abstract: A motor may include a rotor; and a stator arranged on an outer peripheral side of the rotor. The stator may include a stator core, a plurality of insulators covering the stator core, a coil wound around the stator core through each of the insulators, and a common wire formed of a conductive wire drawn from the coil. At least one of the plurality of insulators includes a first common wire support portion configured to support the common wire from an outside in a radial direction. The first common wire support portion extends inward in the radial direction toward a tip end side of the common wire.
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公开(公告)号：US20190162189A1
公开(公告)日：2019-05-30
申请号：US16306585
申请日：2018-04-05
Applicant: NIDEC SANKYO CORPORATION
Inventor： Nobuki KOKUBO , Hiroki KURATANI , Takashi YAMAMOTO , Masaki HARADA
IPC: F04D13/06 , F04D29/041 , F04D29/22
Abstract: To provide a pump device configured such that the impeller can be prevented from being moved toward a case body by which a pump chamber is defined. An impeller is arranged in a pump chamber defined by a case body and an end wall portion of a motor. The impeller includes back blades protruding from a shroud toward the end wall portion of the motor. When the impeller is driven to circulate fluid through the pump chamber, a fluid is drawn out by the back blades from a clearance between the impeller and the end wall portion of the motor. Therefore, the impeller is moved by the negative pressure toward the end wall portion of the motor. The back blades function as a suction power generation mechanism configured to generate suction power sucking the impeller toward the end wall portion.
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公开(公告)号：US20190036411A1
公开(公告)日：2019-01-31
申请号：US16043174
申请日：2018-07-24
Applicant: NIDEC SANKYO CORPORATION
Inventor： Takashi YAMAMOTO , Masaki HARADA
IPC: H02K3/52 , H02K1/14 , H02K1/27 , H02K3/44 , H02K5/167 , H02K5/22 , H02K7/08 , H02K7/14 , F04D13/06
Abstract: A motor includes a connector detachably connected with an external cable and a resin sealing member which covers the connector. The connector includes a frame part into which a cable side connector is to be inserted and a step part on an outer peripheral face of the frame part. A shape of the step part when viewed in the inserting direction is a ring shape. The resin sealing member covers the connector from the front side and exposes an end face of the step part of the frame part and a portion of the frame part on the rear side to the step part end face to the outside, and an outer peripheral face of the resin sealing member is provided with an outer peripheral face portion which surrounds the frame part and is continuously connected with the step part end face without a step.
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公开(公告)号：US20180233976A1
公开(公告)日：2018-08-16
申请号：US15895300
申请日：2018-02-13
Applicant: NIDEC SANKYO CORPORATION
Inventor： Hiroki KURATANI , Takashi YAMAMOTO , Nobuki KOKUBO , Masaki HARADA
CPC classification number: H02K1/30 , F04D1/00 , F04D13/06 , H02K1/146 , H02K1/2733 , H02K1/2753 , H02K3/522 , H02K5/225 , H02K7/14 , H02K2205/03
Abstract: A rotor may include a rotation shaft, a magnet on an outer peripheral side, a holding member holding the rotation shaft and the magnet, and a plurality of recessed parts provided in an end face of the magnet in an axial line direction of the rotation shaft so as to be separated from each other in a circumferential direction. A surface of each of the recessed parts is formed in a spherical shape, the holding member has a flange portion which covers the end face of the magnet from an end on an inner peripheral side of the end face of the magnet to an outer peripheral side with respect to the plurality of the recessed parts, and the flange portion is adhered to the surfaces of the recessed parts.
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