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公开(公告)号：US20190273416A1
公开(公告)日：2019-09-05
申请号：US16343426
申请日：2017-03-30
Applicant: Nidec Corporation
Inventor： Takahiro KIZU , Takashi HATTORI , Toshiya OKAMOTO , Yuichi NISHIKAWA
Abstract: A motor includes a rotor, a stator, a housing, and a flange. The housing includes a first cylindrical portion, a contact portion extending radially inward from an axial lower end of the first cylindrical portion, a second cylindrical portion that extends axially downward from a radial inner edge of the contact portion and has a smaller outer diameter than the first cylindrical portion, and a bottom portion extending radially inward from an axial lower end of the second cylindrical portion. The flange includes a flange cylindrical portion, and a flange flat portion extending radially outward from an axial lower end of the flange cylindrical portion. The flange cylindrical portion is fixed to an outer surface of the second cylindrical portion and an upper end of the flange cylindrical portion contacts with an outside lower surface of the contact portion.
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公开(公告)号：US20180233984A1
公开(公告)日：2018-08-16
申请号：US15750858
申请日：2016-08-09
Applicant: Nidec Corporation
Inventor： Kosuke OGAWA , Takashi HATTORI , Shunsuke MURAKAMI , Takao ATARASHI , Hidehiro HAGA , Yoshiaki YAMASHITA , Takahiro KIZU , Toshiya OKAMOTO
CPC classification number: H02K3/50 , H02K1/16 , H02K3/12 , H02K3/38 , H02K3/52 , H02K3/522 , H02K5/161 , H02K5/1732 , H02K7/083 , H02K2203/06 , H02K2203/09
Abstract: A motor includes a rotor that has a shaft with a central axis extending in a vertical direction as a center, a stator disposed so as to face the rotor in a radial direction, a bearing that supports the shaft, a wire support member disposed above the stator, and a bearing holder disposed above the wire support member to hold the bearing. The stator includes a plurality of teeth, and a plurality of coils provided on the plurality of teeth. The wire support member includes a wire holding portion that holds one portion of coil lead wires among the coil lead wires drawn out from the coil, a 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 the conducting member.
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公开(公告)号：US20200212739A1
公开(公告)日：2020-07-02
申请号：US16691669
申请日：2019-11-22
Applicant: Nidec Corporation
Inventor： Takahiro KIZU
Abstract: A rotor core that rotates about a central axis includes magnets located radially outside of the rotor core and disposed along a circumferential direction, a holder including a support portion that supports the rotor core and the magnets from a first side in an axial direction, and a rotor cover including a cylindrical portion that surrounds the rotor core, the magnets, and the holder from an outside in a radial direction and that opens toward the first side. The rotor cover includes a bottom portion that supports the rotor core from a second side of the rotor core in the axial direction. A radially outer edge portion of the support portion includes a first portion and a second portion adjacent to the first portion in the circumferential direction.
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公开(公告)号：US20160294240A1
公开(公告)日：2016-10-06
申请号：US15085297
申请日：2016-03-30
Applicant: NIDEC CORPORATION
Inventor： Tatsuro KAWAMOTO , Takayuki MIGITA , Takao ATARASHI , Masateru KAWAKAMI , Takahiro KIZU
Abstract: A motor may include a rotor including a shaft having a central axis; a stator opposite to the rotor, and comprising coils; a bearing supporting the shaft; a metallic bearing holder covering the stator and supporting the bearing; at least one busbar on an opposite axial side of the bearing holder and including a connection terminal connected with a a coil wire extending from one of the coils; and a coil support between the stator and the bearing holder and fixed to the stator. The bearing holder may include at least one through hole. The coil support may include at least one insulating support portion comprising an opening portion. A portion of the opening portion of the insulating support portion having a smallest cross-sectional area in the opening portion lies inside of an edge of one of the through holes of the bearing holder.
Abstract translation: 马达可以包括具有中心轴的轴的转子; 与转子相对的定子，并且包括线圈; 支撑轴的轴承; 覆盖定子并支撑轴承的金属轴承座; 至少一个母线在所述轴承座的相对的轴向侧上，并且包括与从所述线圈中的一个延伸的线圈线连接的连接端子; 以及在定子和轴承座之间并固定在定子上的线圈支撑。 轴承座可以包括至少一个通孔。 线圈支撑件可以包括至少一个包括开口部分的绝缘支撑部分。 绝缘支撑部的开口部的开口部的截面积最小的部分位于轴承座的一个通孔的边缘的内侧。
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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.
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Patent Agency Ranking
公开(公告)号：US20190115806A1
公开(公告)日：2019-04-18
申请号：US16090363
申请日：2017-03-21
Applicant: NIDEC CORPORATION
Inventor： Yoshiaki YAMASHITA , Takashi HATTORI , Takahiro KIZU
Abstract: A motor may include a rotor having a rotating shaft extending in an up-down direction, a stator that opposes the rotor, a housing that holds the stator, a heat sink that is attached to the housing, and a circuit board on which electronic components are mounted and which is disposed on a lower surface of the heat sink. The electronic components may include a heat-generating element. The housing may include a cylindrical portion and a flange portion extending outward in a radial direction from an upper end of the cylindrical portion. The heat sink may have a protruding portion protruding downward in an axial direction and is attached to an upper surface of the flange portion in the axial direction using a fixing member. The heat-generating element may be in contact with the heat sink via a heat-conducting member.
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公开(公告)号：US20200177045A1
公开(公告)日：2020-06-04
申请号：US16636382
申请日：2018-08-06
Applicant: Nidec Corporation
Inventor： Takahiro KIZU , Ryosuke KOZU , Yuichi NISHIKAWA , Takahiro HISADA , Takanobu OYAMA
Abstract: A bush attached to a through hole of a casing of a motor holds a conductor. The bush includes a main body, an insertion hole, a flange, and a rib. The main body includes a first end surface, a second end surface facing the first end surface in a first direction, and side surfaces between the first end surface and the second end surface. The insertion hole penetrates an inside of the main body in the first direction, and allows the conductor to pass through. The flange protrudes from a side surface in a direction perpendicular or substantially perpendicular to the first direction. The rib protrudes from the side surface in a direction perpendicular or substantially perpendicular to the first direction.
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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.
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公开(公告)号：US20190319517A1
公开(公告)日：2019-10-17
申请号：US16347823
申请日：2017-03-30
Applicant: Nidec Corporation
Inventor： Takashi HATTORI , Yusaku YOSHIDA , Toshiya OKAMOTO , Takahiro KIZU , Yuichi NISHIKAWA
Abstract: A motor includes a rotor, a stator, a housing, a heat sink, a substrate, a connector, and a cover. The connector includes a connector shell with a shell projection shell. The heat sink includes a heat sink body and a heat sink protrusion. The heat sink protrusion includes a heat sink recess or heat sink projection. The shell projection or shell recess, and the heat sink recess or heat sink projection are fitted through a gap.
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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.
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