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公开(公告)号：US20180226853A1
公开(公告)日：2018-08-09
申请号：US15946827
申请日：2018-04-06
Applicant: Mitsuba Corporation
Inventor： Yoshichika Kawashima , Teppei Tokizaki , Natsumi Tamura
Abstract: When teeth (12) are allocated in a circumferential direction in sequence of a U phase, a V phase and a W phase, a forward wound coil wound on each of the phases is provided as a coil of the U phase, the V phase and the W phase, and a reverse wound coil wound on each of the phases is provided as the coil of a −U phase, a −V phase and a −W phase, the coils are electrically connected between the neighboring segments in an order of the U phase, the −W phase, the −W phase, the V phase, the −U phase, the −U phase, the W phase, the −V phase and the −V phase, and the wire (14) drawn between the armature core (8) and the commutator (10) is drawn around the rotation shaft in the same direction.
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公开(公告)号：US20160156243A1
公开(公告)日：2016-06-02
申请号：US14903387
申请日：2013-07-12
Applicant: MITSUBA CORPORATION
Inventor： Kenji Yasumoto , Teppei Tokizaki , Shigeki Ota
Abstract: A motor case 21 is positioned to a gear case 31 in the diametrical direction by diametrically-positioning projection portions 72c of a brush holder 70 by causing the motor case 21 and the gear case 31 to face each other, and an axially-positioning projection portions 72e of the brush holder 70 are pressed from the axial direction of an armature shaft 24 by a pressing flange portion 21i, so that the brush holder 70 is positioned to the gear case 31 in the axial direction. Therefore, the size and weight of the rear wiper motor 10 can be reduced by avoiding enlargement of the coupling portion of the motor case 21 and the gear case 31, and since it is unnecessary to interpose the brush holder 70 in the coupling portion between the motor case 21 and the gear case 31, a sufficient seal performance can be obtained.
Abstract translation: 马达壳体21通过使马达壳体21和齿轮箱31彼此面对而沿着直径方向通过电刷架70的突出部分72c直径定位到齿轮箱31，并且轴向定位的突出部分 电刷架70e通过按压凸缘部21i从电枢轴24的轴向按压，使得电刷架70沿轴向位于齿轮箱31上。 因此，通过避免马达壳体21和齿轮箱31的联接部分的放大，可以减小后雨刮器电动机10的尺寸和重量，并且由于不需要将电刷架70插入连接部分 马达壳体21和齿轮箱31，可以获得足够的密封性能。
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公开(公告)号：US20160056687A1
公开(公告)日：2016-02-25
申请号：US14779725
申请日：2014-03-20
Applicant: MITSUBA CORPORATION
Inventor： Yoshichika Kawashima , Teppei Tokizaki , Natsumi Tamura
CPC classification number: H02K7/1166 , B60S1/08 , H02K1/17 , H02K3/18 , H02K5/145 , H02K7/1163 , H02K2213/03
Abstract: An electric motor (2) includes a yoke (5) having a cylindrical magnet housing section (54) that houses a magnet (7), and a gear housing (23) having a cylindrical frame section (22) that houses at least a brush holder. One side of the yoke (5) is joined to the other side of the frame section (22), and a rotary shaft is housed in the magnet housing section (54) and the frame section (22) in an axial direction of the magnet housing section (54) and the frame section (22). A first axial length (F) is formed to be equal to or longer than a second axial length (Y), the first axial length (F) is an axial length of an outer wall of the frame section (22) that is formed substantially parallel to the rotary shaft, and the second axial length (Y) is an axial length of an outer wall of the magnet housing section (54) that is formed substantially parallel to the rotary shaft.
Abstract translation: 电动机（2）包括具有容纳磁体（7）的圆柱形磁体容纳部分（54）的磁轭（5）和具有圆柱形框架部分（22）的齿轮壳体（23），该圆柱形框架部分容纳至少一个电刷 持有人 轭架（5）的一侧与框架部分（22）的另一侧接合，并且旋转轴沿着磁体的轴向容纳在磁体容纳部分（54）和框架部分（22）中 壳体部分（54）和框架部分（22）。 第一轴向长度（F）形成为等于或长于第二轴向长度（Y），第一轴向长度（F）是框架部分（22）的外壁基本上形成的轴向长度 平行于旋转轴，第二轴向长度（Y）是基本上平行于旋转轴形成的磁体容纳部分（54）的外壁的轴向长度。
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公开(公告)号：US20140252897A1
公开(公告)日：2014-09-11
申请号：US14355854
申请日：2012-10-31
Applicant: Mitsuba Corporation
Inventor： Kenji Yasumoto , Teppei Tokizaki , Shigeki Ota
CPC classification number: H02K13/00 , H02K5/148 , H02K5/225 , H02K7/1166 , H02K15/14 , Y10T29/49011
Abstract: In an electric motor apparatus including an electric motor (13), a speed-reduction mechanism (14) which transmits motive power of the electric motor (13), a housing (15) which accommodates the speed-reduction mechanism (14) and the electric motor (13), and a yoke (16a) fixed to an outer portion of the housing (15), the housing (15) is provided with a concave portion (21), a holding hole (18a), and an accommodation chamber (15a). A connector unit (25) is moved along the first direction and installed to a concave portion (21). A brush holder (26) is moved along the second direction and installed to the holding hole (18a). The speed-reduction mechanism (14) is moved along the first direction and accommodated in the accommodation chamber (15a). The yoke (16a) is moved along the second direction and fixed to the housing (15). Therefore, no restriction is imposed on the routing of an external connector connected to the connector unit (25).
Abstract translation: 在包括电动机（13）的电动机装置，传递电动机（13）的动力的减速机构（14），容纳减速机构（14）的壳体（15）和 电动机（13）和固定到壳体（15）的外部的轭架（16a），壳体（15）设置有凹部（21），保持孔（18a）和容纳室 （15a）。 连接器单元（25）沿着第一方向移动并安装到凹部（21）。 电刷架（26）沿着第二方向移动并安装到保持孔（18a）。 减速机构（14）沿着第一方向移动并容纳在容纳室（15a）中。 轭架（16a）沿着第二方向移动并固定到壳体（15）。 因此，不限制连接到连接器单元（25）的外部连接器的路由。
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公开(公告)号：US12181022B1
公开(公告)日：2024-12-31
申请号：US18593950
申请日：2024-03-03
Applicant: MITSUBA Corporation
Inventor： Motoaki Kobayashi , Teppei Tokizaki
IPC: F16H1/28
Abstract: A speed reduction mechanism has an increased reduction ratio while achieving downsizing. A speed reduction mechanism 30 includes a rotating shaft 10, a pinion gear 11 including a first tooth portion 11a extending spirally along a longitudinal direction Q1 of the rotating shaft 10, three planetary gears 12 including spiral second tooth portions 12e and arranged side by side in a circumferential direction Q2 of the rotating shaft 10, a housing portion 14 housing the three planetary gears 12, and an internal gear 13 including a spiral third tooth portion 13a meshing with the second tooth portions 12e. The first tooth portion 11a has at least a part of a tooth profile cross section formed in an arc shape. The second tooth portion 12e meshes with the first tooth portion 11a in a state of being in contact with a portion where the tooth profile cross section is arc-shaped.
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Patent Agency Ranking
公开(公告)号：US20180351423A1
公开(公告)日：2018-12-06
申请号：US16058355
申请日：2018-08-08
Applicant: Mitsuba Corporation
Inventor： Yoshichika Kawashima , Teppei Tokizaki , Natsumi Tamura
CPC classification number: H02K1/223 , H02K1/265 , H02K7/1166 , H02K13/04 , H02K23/18 , H02K23/32 , H02K23/40
Abstract: An electric motor includes a yoke having six magnetic poles; a rotary shaft which is provided inside the yoke in a freely rotatable manner; an armature core (6) which has teeth (36) attached to the rotary shaft, radially extending in a radial direction and set in an arrangement of an even number, and an even number of slots (37) formed between the teeth; an armature coil (7) which is wound around the teeth in a single wave winding; and a commutator (13) which is provided in the rotary shaft to be adjacent to the armature core (6) and has a plurality of circumferentially disposed segments (41) to which the armature coil (7) is connected.
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公开(公告)号：US10075031B2
公开(公告)日：2018-09-11
申请号：US14779360
申请日：2014-03-25
Applicant: Mitsuba Corporation
Inventor： Yoshichika Kawashima , Teppei Tokizaki , Natsumi Tamura
CPC classification number: H02K1/223 , H02K1/265 , H02K7/1166 , H02K13/04 , H02K23/18 , H02K23/32 , H02K23/40
Abstract: An electric motor includes a yoke having six magnetic poles; a rotary shaft which is provided inside the yoke in a freely rotatable manner; an armature core (6) which has teeth (36) attached to the rotary shaft, radially extending in a radial direction and set in an arrangement of an even number, and an even number of slots (37) formed between the teeth; an armature coil (7) which is wound around the teeth in a single wave winding; and a commutator (13) which is provided in the rotary shaft to be adjacent to the armature core (6) and has a plurality of circumferentially disposed segments (41) to which the armature coil (7) is connected.
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公开(公告)号：US20180083501A1
公开(公告)日：2018-03-22
申请号：US15560187
申请日：2016-04-25
Applicant: Mitsuba Corporation
Inventor： Teppei Tokizaki , Yoshichika Kawashima , Natsumi Tamura
Abstract: In an electric motor (2) which includes four permanent magnets (12) and in which the number of teeth (20) and the number of slots (23) are set to 6, when a polar arc angle of the permanent magnet (12) is θ1, and a skew angle of the teeth (20) and the slots (23) is θ2, the polar arc angle θ1 and the skew angle θ2 are set so as to satisfy 50°≦θ1
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公开(公告)号：US20170207686A1
公开(公告)日：2017-07-20
申请号：US15454329
申请日：2017-03-09
Applicant: Mitsuba Corporation
Inventor： Kenji Yasumoto , Teppei Tokizaki , Shigeki Ota
CPC classification number: H02K11/0094 , B60S1/08 , H01R13/11 , H01R39/383 , H02K1/17 , H02K5/08 , H02K5/148 , H02K5/225 , H02K7/1166 , H02K11/21 , H02K11/38 , H02K23/04
Abstract: A motor apparatus provided with a connector unit (40) to which an external connector is connected, wherein the connector unit (40) has a plurality of conductive members (64, 65, 66) arranged over a base portion (50) and a connector connecting portion (70) provided with a plug-in hole in which the external connector is plugged, wherein the conductive members (64, 65, 66) respectively include connector-side connecting portions (64a, 65a, 66a) connected to the external connector so as to face the connector connecting portion (70) from a first direction reversed to a plug-in direction of the external connector to the plug-in hole and base-side connecting portions (64b, 65b, 66b) connected to terminals or wirings provided in the base portion (50), wherein the connector-side connecting portions (64a, 65a, 66a) are respectively inserted into a plurality of insertion holes (74, 75, 76) provided at positions different from each other in a second direction intersecting the first direction, and wherein the base-side connecting portions (64b, 65b, 66b) are respectively arranged at the same position in the second direction.
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公开(公告)号：US12176790B2
公开(公告)日：2024-12-24
申请号：US18334359
申请日：2023-06-13
Applicant: MITSUBA Corporation
Inventor： Teppei Tokizaki , Motoaki Kobayashi , Satoshi Tamura , Masaki Hayata , Masakazu Saito , Yoshichika Kawashima
Abstract: A brushless motor includes a motor part and a gear part. The motor part includes: a rotating shaft, having a first gear; a rotor, having a bottom wall and a side wall, the bottom wall being fixed to the rotating shaft; magnets, fixed to the side wall and arranged side by side in a circumferential direction of the rotor; a stator, provided between the rotating shaft and the magnets in a radial direction of the rotor and wound with a coil; and a motor housing, rotatably supporting the rotating shaft, and accommodating the rotor and the stator. The gear part includes: a second gear, meshed with the first gear; an output shaft, having an output part, having a base end side thereof fixed to the second gear, and parallel to the rotating shaft; and a gear housing, rotatably supporting the output shaft, and accommodating the second gear.
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