-
公开(公告)号：US20200062295A1
公开(公告)日：2020-02-27
申请号：US16346880
申请日：2017-03-30
Applicant: Nidec Corporation
Inventor： Takashi HATTORI , Takahiro KIZU , Toshiya OKAMOTO , Yuichi NISHIKAWA , Yoshiaki YAMASHITA
Abstract: A motor includes a rotor, a stator that surrounds the radial outer side of the rotor, a housing that contains the rotor and the stator, a holder axially above the stator, a substrate fixed to the axial upper side of the holder, and a connector radially outward of the housing and electrically connected to the substrate. The holder includes a holder body, and a holder protrusion that connects to the holder body and extends radially outward from the housing. The connector contacts the underside of the holder protrusion.
-
公开(公告)号：US20190319516A1
公开(公告)日：2019-10-17
申请号：US16343424
申请日：2017-03-30
Applicant: Nidec Corporation
Inventor： Takahiro KIZU , Takashi HATTORI , Toshiya OKAMOTO , Yuichi NISHIKAWA , Yoshiaki YAMASHITA
Abstract: A motor includes a rotor with a shaft that extends axially, a stator that surrounds a radial outer side of the rotor, a heat sink that is axially above the stator and provided with cavities that pass conductors therethrough and extend axially, and a substrate that is axially above the heat sink and includes an electronic component mounted thereon, wherein the heat sink includes a contact surface that contacts the substrate or electronic component directly or via a heat dissipating member and an exposed surface that does not come into contact with other members, wherein the exposed surface is located closer to an outer edge than the cavities.
-
公开(公告)号：US20180248440A1
公开(公告)日：2018-08-30
申请号：US15755261
申请日：2016-08-23
Applicant: Nidec Corporation
Inventor： Yoshiaki YAMASHITA , Takashi HATTORI
Abstract: A motor body includes a motor housing accommodating a rotor and a stator, a cover disposed above the motor body, a connector including a connector covering portion disposed between the motor body and the cover, and a substrate electrically connected to the motor body. The motor includes a first sealing portion that seals an upper portion of the motor housing and the connector covering portion, and a second sealing portion disposed on an upper side of the first sealing portion, the second sealing portion sealing is disposed between the cover and the connector covering portion, and the first sealing portion is disposed below an upper end of the motor housing.
-
公开(公告)号：US20250015739A1
公开(公告)日：2025-01-09
申请号：US18762122
申请日：2024-07-02
Applicant: NIDEC CORPORATION
Inventor： Shuji ENDO , Takashi HATTORI , Yoshiaki YAMASHITA , Sohei MIYAKE
Abstract: A motor control device that controls a motor includes a calculator to calculate angle information related to a rotation angle of a rotor of the motor based on an output from a magnetic sensor, and a corrector to correct the angle information calculated by the calculator. The magnetic sensor is a sensor that includes a magnetoresistance effect element and outputs signals of two systems out of phase with each other by 180°. The corrector corrects the angle information using a correction amount expressed by a function including a current value of a motor current supplied to a stator of the motor and a phase angle of the motor current, a current value of a power source current supplied to the motor control device, and a mechanical angle of the rotor calculated based on an output from the magnetic sensor.
-
公开(公告)号：US20220271595A1
公开(公告)日：2022-08-25
申请号：US17592538
申请日：2022-02-04
Applicant: Nidec Corporation
Inventor： Tatsuro KAWAMOTO , Yuhei YAMAGUCHI , Yoshiaki YAMASHITA
Abstract: A stator includes a stator core that includes a core back portion having an annular shape and with a central axis as a center and tooth portions extending from the core back portion to an inside in a radial direction and arranged in a circumferential direction, insulators that are attached to the tooth portions from the inside in the radial direction, a coil that is wound around the insulator, and a cover that supports an inner surface of the insulator opposing the inside in the radial direction from the inside in the radial direction.
-
Patent Agency Ranking
公开(公告)号：US20220166361A1
公开(公告)日：2022-05-26
申请号：US17442177
申请日：2020-02-18
Applicant: Nidec Corporation
Inventor： Yoshiaki YAMASHITA , Hiromitsu OHASHI
Abstract: A power converter that converts power from a power source and supplies the converted power to a motor includes an inverter connected to a winding of the motor and including switches that generate heat along with power control operation, and a substrate on which the switches are mounted. A first switch of the switches is mounted in a first region on the substrate, and a second switch that generates more heat than the first switch is mounted in a second region having a higher heat dissipation than a heat dissipation of the first region.
-
公开(公告)号：US20200059127A1
公开(公告)日：2020-02-20
申请号：US16487510
申请日：2018-03-13
Applicant: Nidec Corporation
Inventor： Yoshiaki YAMASHITA , Shunsuke TAKAHASHI , Takao ATARASHI
IPC: H02K3/52
Abstract: A bus bar unit includes a bus bar holder, a bus bar extending in a direction perpendicular to an axial direction and fixed to the bus bar holder, and an external connection terminal connected to the bus bar and extending to one side in the axial direction from the bus bar. The external connection terminal has a plate shape. The external connection terminal includes a first plate portion extending toward one side in the axial direction and a second plate portion that is positioned on a base end side of the first plate portion, is provided with a connection portion connected to the bus bar, and faces a direction different from the first plate portion. The first plate portion and the second plate portion are connected to each other in a bending line extending in the axial direction, and the second plate portion extends from one surface side to the other surface side of the first plate portion when viewed in the axial direction.
-
公开(公告)号：US20200059124A1
公开(公告)日：2020-02-20
申请号：US16487509
申请日：2018-03-13
Applicant: Nidec Corporation
Inventor： Yoshiaki YAMASHITA , Shunsuke TAKAHASHI , Takao ATARASHI
Abstract: A bus bar unit includes a bus bar holder, a U-phase bus bar group, a V-phase bus bar group, and a W-phase bus bar group each including a first layer bus bar located on one side of the bus bar holder in an axial direction and extending along a plane perpendicular to the axial direction, a second layer bus bar located on one side of the first layer bus bar in the axial direction and extending along the plane perpendicular to the axial direction, and an external connection terminal connected to the first layer bus bar and the second layer bus bar and extending from the first layer bus bar and the second layer bus bar toward one side in the axial direction. The first and second layer bus bars of each of the U-phase bus bar group, the V-phase bus bar group, and the W-phase bus bar group extend to opposite sides from each other in a circumferential direction from the external connection terminal connected thereto.
-
公开(公告)号：US20190232999A1
公开(公告)日：2019-08-01
申请号：US16337417
申请日：2017-09-22
Applicant: Nidec Corporation
Inventor： Yoshiaki YAMASHITA
CPC classification number: B62D5/0406 , B62D5/064 , H02K5/04 , H02K5/22 , H02K11/33
Abstract: A motor control device includes a frame including a metal material, a substrate disposed on an upper side of the frame with a gap between the substrate and the upper side of the frame member, the substrate including a hole penetrating an upper surface and a lower surface, a wiring that is inserted into the hole from a side of the upper surface of the substrate, and a tip portion connected to the substrate, and an insulating spacer interposed between the frame and the substrate. The spacer includes a side wall portion that surrounds the tip portion of the wiring in a plan view.
-
公开(公告)号：US20210143708A1
公开(公告)日：2021-05-13
申请号：US16611996
申请日：2017-12-07
Applicant: Nidec Corporation
Inventor： Takashi HATTORI , Takahiro KIZU , Toshiya OKAMOTO , Yuichi NISHIKAWA , Yoshiaki YAMASHITA
Abstract: A motor includes a heat sink including a first portion and a second portion located on a circumference identical to the first portion and extending along a circumferential direction. An axial thickness of the first portion is larger than an axial thickness of the second portion. A lower surface of the second portion is located axially above a lower surface of the first portion. A busbar is located axially below the second portion.
-
-
-
-
-
-
-
-
-
Search Results
31
records
(took 0.015 seconds)
