-
公开(公告)号：US20200014278A1
公开(公告)日：2020-01-09
申请号：US16487221
申请日：2018-03-22
Applicant: Nidec Corporation
Inventor： Yoshiaki YAMASHITA , Takao ATARASHI
Abstract: A rotor includes a shaft arranged along a central axis extending in a vertical direction, a rotor core fixed on the shaft, magnets provided at an outer side of the rotor core in a radial direction, a rotor cover to accommodate the rotor core and the magnets, and a resin to fix the rotor cover and the magnets to each other. The rotor cover includes a cylindrical portion extending in an axial direction and surrounding outer sides of the rotor core and the magnets in the radial direction, and a bottom plate extending inward in the radial direction from a lower end portion of the cylindrical portion. The resin includes a filler provided at an inner side of the cylindrical portion in the radial direction and filled between the cylindrical portion and the magnets, an anti-separation portion, at least a portion of which is located below the bottom plate, and a connector overlapping the bottom plate in the axial direction. The filler and the anti-separation portion are connected via the connector.
-
公开(公告)号：US20200014272A1
公开(公告)日：2020-01-09
申请号：US16487204
申请日：2018-01-30
Applicant: Nidec Corporation
Inventor： Yu ASAHI , Takao ATARASHI , Masayoshi MAEDA
Abstract: A phase bus bar unit includes a bus bar holder that is an insulator and supports of bus bars for phases of a motor rotating about a central axis, and a bus bar cover which is an insulator, covers at least one side of each of the bus bars in an axial direction, and is fixed to the bus bar holder. Each of the bus bars includes a base, extensions each extending outward in a radial direction from the base, and a terminal installed on an outer end of each of the extensions in the radial direction. The bus bar cover includes protrusions each protruding to another side in the axial direction, and the protrusions are in contact with each of the bus bars while at least one of the protrusions is in contact with the base at or adjacent to the extension.
-
公开(公告)号：US20210135531A1
公开(公告)日：2021-05-06
申请号：US16487205
申请日：2018-03-20
Applicant: Nidec Corporation
Inventor： Tomoki IGA , Masayoshi MAEDA , Yu ASAHI , Takao ATARASHI
Abstract: A bus bar unit includes an inner bus bar and an outer bus bar extending in a circumferential direction about a central axis of a motor and connected to a coil of a stator and held by a bus bar holder which is a resin molded structure and the outer bus bar is disposed outward in a radial direction with respect to the inner bus bar. The bus bar holder includes a first inner support wall to support an outer circumferential surface of the inner bus bar, a first outer support wall to support an inner circumferential surface of the outer bus bar, openings open in parallel or substantially in parallel in at least one of the first inner support wall and the first outer support wall in the circumferential direction, and through which a lead wire of the coil passes, and a connection rib extending in the radial direction between the openings adjacent to each other in the circumferential direction to connect the first inner support wall to the first outer support wall.
-
公开(公告)号：US20180226851A1
公开(公告)日：2018-08-09
申请号：US15944872
申请日：2018-04-04
Applicant: Nidec Corporation
Inventor： Tatsuro KAWAMOTO , Takayuki MIGITA , Takao ATARASHI , Yasuaki NAKAHARA
IPC: H02K1/27
CPC classification number: H02K1/2773 , H02K1/272 , H02K1/274 , H02K15/03 , H02K2213/03
Abstract: A motor may include a rotor including a shaft; a stator; and a bearing supporting the shaft. The rotor may include a plurality of core pieces on an outer side of the shaft, a plurality of permanent magnets, a mold resin part between the core pieces, and an interposed part in contact with a surface on one side in a circumferential direction of each of the core pieces. The neighboring core pieces may include a magnet insertion hole provided therebetween. The permanent magnet may include two poles, with poles of neighboring magnets facing each other having identical polarity. Each of the permanent magnets is in indirect contact with the core piece positioned on the other side in the circumferential direction of the magnet insertion hole via the interposed part.
-
公开(公告)号：US20220231564A1
公开(公告)日：2022-07-21
申请号：US17715996
申请日：2022-04-08
Applicant: Nidec Corporation
Inventor： Takashi HATTORI , Yuichi NISHIKAWA , Takao ATARASHI , Yuki HAMADA , Yu KUWAMOTO
IPC: H02K5/10
Abstract: A motor includes a motor main body including a rotor and a stator, a housing that houses the motor main body, a controller that is located above the motor main body o controls rotation of the rotor, and a cover that surrounds the controller from a radially outer side. The housing includes a cover joint that is annular and surrounds the controller when viewed in an axial direction. The cover includes a cylindrical portion that surrounds the cover joint from an outside in a radial direction. The cover joint includes a contact portion that contacts a surface of the cylindrical portion in the radial direction and an adhesive joint that is bonded with the cylindrical portion via an adhesive in the radial direction. The contact portion and the adhesive joint are adjacent each other in a circumferential direction.
-
Patent Agency Ranking
公开(公告)号：US20180248438A1
公开(公告)日：2018-08-30
申请号：US15750850
申请日：2016-08-09
Applicant: Nidec Corporation
Inventor： Kosuke OGAWA , Takashi HATTORI , Shunsuke MURAKAMI , Takao ATARASHI , Hidehiro HAGA
Abstract: In a motor, a wire support member includes a wire holding portion that holds one portion of coil lead wires among the coil lead wires extending upward from a coil, a first conducting member that electrically connects the other portion of the coil lead wires to each other, and a main body portion that supports the wire holding portion and a first conducting member, a bus bar unit includes a second conducting member connected to the coil lead wire held by the wire holding portion, and a bus bar holder that holds the second conducting member. A bearing holder includes a through-hole which penetrates the bearing holder in an axial direction and through which a coil end of the coil lead wire or the second conducting member passes.
-
公开(公告)号：US20160254711A1
公开(公告)日：2016-09-01
申请号：US15052285
申请日：2016-02-24
Applicant: NIDEC CORPORATION
Inventor： Tatsuro KAWAMOTO , Takayuki MIGITA , Takao ATARASHI , Yasuaki NAKAHARA
CPC classification number: H02K1/2773 , H02K1/272 , H02K1/274 , H02K15/03 , H02K2213/03
Abstract: A motor may include a rotor including a shaft; a stator; and a bearing supporting the shaft. The rotor may include a plurality of core pieces on an outer side of the shaft, a plurality of permanent magnets, and a mold resin part between the core pieces. The neighboring core pieces may include a magnet insertion hole provided therebetween. The permanent magnet may include two poles, with poles of neighboring magnets facing each other having identical polarity. The mold resin part may include at least one first guide part disposed closer to one side than the center between neighboring core pieces, and covers at least a portion of a surface on one side of the magnet insertion hole in a circumferential direction, the permanent magnet being in direct indirect contact via resin with the core piece disposed on the other side of the magnet insertion hole.
Abstract translation: 马达可以包括：转子，其包括轴; 定子 和支撑轴的轴承。 转子可以包括在轴的外侧上的多个芯片，多个永磁体和在芯片之间的模制树脂部分。 相邻的芯片可以包括设置在它们之间的磁体插入孔。 永磁体可以包括两个极，相邻磁体的磁极彼此相对具有相同的极性。 模具树脂部件可以包括至少一个第一引导部件，该第一引导部件设置成比相邻的芯片之间的中心更靠近一侧，并且在圆周方向上覆盖磁体插入孔的一侧的表面的至少一部分，永磁体 通过树脂直接间接接触，芯片设置在磁体插入孔的另一侧。
-
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：US20180233983A1
公开(公告)日：2018-08-16
申请号：US15751186
申请日：2016-08-05
Applicant: Nidec Corporation
Inventor： Yu ASAHI , Shunsuke MURAKAMI , Takao ATARASHI , Masayoshi MAEDA
Abstract: A stator includes an annular core back extending circumferentially around a central axis extending vertically; a plurality of teeth extending radially from the core back; a plurality of insulators covering at least part of the teeth; and a coil formed of a conducive wire wound around the teeth via the insulators. The insulator has a cylinder extending radially, an umbrella disposed radially at an end of the cylinder and extending circumferentially in both sides, and a wall protruding from the outer side surface of the cylinder circumferentially to one side. At least part of a tip surface of the wall is inclined and approaches closer to the cylinder as it moves toward the umbrella in the radial direction. The insulator has at least one protrusion protruding to the core back side from the end of the umbrella in one side of the circumferential direction.
-
-
-
-
-
-
-
-
-
Search Results
20
records
(took 0.014 seconds)
