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公开(公告)号：US10958124B2
公开(公告)日：2021-03-23
申请号：US15483622
申请日：2017-04-10
Applicant: MINEBEA MITSUMI INC.
Inventor： Minoru Kuroda
Abstract: A motor includes a rotor, a frame accommodating the rotor, a cover provided at one of two ends of the frame in a direction of a rotor axis, an internal space formed by the frame and the cover and a partition part partitioning the internal space into two spaces. The partition part includes an insertion portion. A part of the cover is inserted into the insertion portion.
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公开(公告)号：US12074488B2
公开(公告)日：2024-08-27
申请号：US17817154
申请日：2022-08-03
Applicant: MINEBEA MITSUMI Inc.
Inventor： Minoru Kuroda
Abstract: A small DC motor includes a motor frame having a cylindrical portion, the cylindrical portion having a constant thickness and having a cross section in a shape that comprises four sides and connecting portions, each of the connecting portions connecting adjacent two of the four sides and being located inward from a corresponding corner in a quadrangle comprising the four sides; and a magnet having a circumferential surface on an inside thereof and having conformable contact with the motor frame on an outside thereof.
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公开(公告)号：US11764640B2
公开(公告)日：2023-09-19
申请号：US16977887
申请日：2019-02-18
Applicant: MINEBEA MITSUMI Inc.
Inventor： Minoru Kuroda
IPC: H02K5/22
CPC classification number: H02K5/225
Abstract: To provide a rotary apparatus able to facilitate assembly of the rotary apparatus, and an attaching structure of the rotary apparatus. A rotary apparatus (1) includes a motor (10) having motor terminals (13), terminal members (21) and (22), a first housing (60), the terminal members (21) and (22) being attached to the first housing (60), and a second housing (40) having an accommodating part configured to accommodate the motor (10), the first housing (60) being attached to the second housing (40). The first housing (60) is attachable to or separable from the second housing (40) in a predetermined direction. The terminal members (21) and (22) are electrically connected to the motor terminals (13). The terminal members (21) and (22) have externally-connected terminal portions (33) and (34) to be connected to an external unit. The predetermined direction is a longitudinal direction of the externally-connected terminal portions (33) and (34).
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公开(公告)号：US11411456B2
公开(公告)日：2022-08-09
申请号：US15693638
申请日：2017-09-01
Applicant: Minebea Mitsumi Inc.
Inventor： Koichiro Hirabayashi , Yukimasa Matsumura , Akiko Ikuta , Minoru Kuroda , Bora In , Kazuaki Sato
Abstract: A motor includes an armature including a commutator, a bracket including a conductive brush and a first wall part, and a first deformable part. The conductive brush is in contact with the commutator. The first wall part includes a first surface extending along a first surface of the conductive brush. The first deformable part is in contact with both the first surface of the conductive brush and the first surface of the first wall part. The first deformable part is deformable in response to movement of the conductive brush.
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公开(公告)号：US11211842B2
公开(公告)日：2021-12-28
申请号：US16826755
申请日：2020-03-23
Applicant: MINEBEA MITSUMI Inc.
Inventor： Hiroaki Mochizuki , Minoru Kuroda
Abstract: An inner-rotor motor including: an armature assembly including a rotating shaft, an armature unit coupled to the rotating shaft and a pressing unit; a frame assembly including a frame housing the armature unit, a first bearing unit located on one side with respect to the armature unit in an axial direction, and a second bearing unit located on another side with respect to the armature unit in the axial direction; and an urging structure that urges the rotating shaft in a direction away from the second bearing unit and that presses the pressing unit toward the first bearing unit.
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Patent Agency Ranking
公开(公告)号：US11165296B2
公开(公告)日：2021-11-02
申请号：US16292759
申请日：2019-03-05
Applicant: MINEBEA MITSUMI Inc.
Inventor： Minoru Kuroda
Abstract: A motor includes a rotary shaft, an armature part, a frame including a tubular portion surrounding the armature part, and a plurality of magnets. The tubular portion is formed of a magnetic body. The tubular portion includes a plurality of flat parts and a plurality of curved parts. Each of the plurality of flat parts and each of the plurality of curved parts being alternately arranged in a peripheral direction. On an inner surface of the tubular portion in each of the plurality of curved parts, a plurality of magnetic poles are provided. A magnetic gap is provided in a radial direction, the magnetic gap being formed by the inner surface of the tubular portion in each of the plurality of flat parts and the armature part.
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公开(公告)号：US11764637B2
公开(公告)日：2023-09-19
申请号：US17455679
申请日：2021-11-19
Applicant: MINEBEA MITSUMI Inc.
Inventor： Hiroaki Mochizuki , Minoru Kuroda
CPC classification number: H02K5/161 , H02K5/1672 , H02K7/083
Abstract: An inner-rotor motor including: an armature assembly including a rotating shaft, an armature unit coupled to the rotating shaft and a pressing unit; a frame assembly including a frame housing the armature unit, a first bearing unit located on one side with respect to the armature unit in an axial direction, and a second bearing unit located on another side with respect to the armature unit in the axial direction; and an urging structure that urges the rotating shaft in a direction away from the second bearing unit and that presses the pressing unit toward the first bearing unit.
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公开(公告)号：US11742730B2
公开(公告)日：2023-08-29
申请号：US17813064
申请日：2022-07-18
Applicant: MINEBEA MITSUMI Inc.
Inventor： Koichiro Hirabayashi , Akiko Ikuta , Yukimasa Matsumura , Kazuaki Sato , Minoru Kuroda , Bora In
CPC classification number: H02K13/10 , H01R39/381 , H02K5/145 , H02K5/24 , H01R2201/10
Abstract: A motor includes a commutator, a bracket including a conductive brush, first and second wall parts, and first and second deformable parts. The conductive brush is in contact with the commutator. The first wall part includes a first surface extending along a first surface of the conductive brush. The second wall part includes a second surface extending along a second surface of the conductive brush located on a side opposite the first surface of the conductive brush. The first deformable part is in contact with both the first surface of the conductive brush and the first surface of the first wall part, and is deformable in response to movement of the conductive brush. The second deformable part is in contact with both the second surface of the conductive brush and the second surface of the second wall part, and is deformable in response to movement of the conductive brush.
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公开(公告)号：US11424663B2
公开(公告)日：2022-08-23
申请号：US15693881
申请日：2017-09-01
Applicant: Minebea Mitsumi Inc.
Inventor： Koichiro Hirabayashi , Akiko Ikuta , Yukimasa Matsumura , Kazuaki Sato , Minoru Kuroda , Bora In
Abstract: A motor includes a commutator, a bracket including a conductive brush, first and second wall parts, and first and second deformable parts. The conductive brush is in contact with the commutator. The first wall part includes a first surface extending along a first surface of the conductive brush. The second wall part includes a second surface extending along a second surface of the conductive brush located on a side opposite the first surface of the conductive brush. The first deformable part is in contact with both the first surface of the conductive brush and the first surface of the first wall part, and is deformable in response to movement of the conductive brush. The second deformable part is in contact with both the second surface of the conductive brush and the second surface of the second wall part, and is deformable in response to movement of the conductive brush.
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公开(公告)号：US10903713B2
公开(公告)日：2021-01-26
申请号：US15376127
申请日：2016-12-12
Applicant: MINEBEA MITSUMI INC.
Inventor： Hiroaki Mochizuki , Minoru Kuroda
Abstract: An inner-rotor motor including: an armature assembly including a rotating shaft, an armature unit coupled to the rotating shaft and a pressing unit; a frame assembly including a frame housing the armature unit, a first bearing unit located on one side with respect to the armature unit in an axial direction, and a second bearing unit located on another side with respect to the armature unit in the axial direction; and an urging structure that urges the rotating shaft in a direction away from the second bearing unit and that presses the pressing unit toward the first bearing unit.
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