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公开(公告)号：US20220360149A1
公开(公告)日：2022-11-10
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
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：US20210376672A1
公开(公告)日：2021-12-02
申请号：US17330761
申请日：2021-05-26
Applicant: MINEBEA MITSUMI Inc.
Inventor： Minoru KURODA , Hirofumi OHBA
Abstract: A motor includes: a magnet including a plurality of magnetic poles; a plurality of slots opposing the magnet; a coil wound around each of the plurality of slots; a commutator including a plurality of segments; and a plurality of brushes, each of the plurality of brushes including a contact portion contacting two adjacent segments among the plurality of segments, wherein both ends of the coil are connected to the two segments among the plurality of segments, and another segment is arranged between the two segments, one ends of two adjacent coils are connected to one segment of the two segments, and a segment connected to one ends of two adjacent coils and the another segment between two segments connected to either coil different from the two adjacent coils have the same potential.
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公开(公告)号：US20180091025A1
公开(公告)日：2018-03-29
申请号：US15715536
申请日：2017-09-26
Applicant: Minebea Mitsumi Inc.
Inventor： Minoru KURODA
CPC classification number: H02K11/0094 , H02K5/143 , H02K5/145 , H02K11/25 , H02K23/66
Abstract: A DC motor includes: a brush configured to be connectable with the commutator; a first terminal attached to the brush; a second terminal disposed at a position away from the first terminal, the second terminal being configured to be connectable with an external terminal; a bracket to which the first terminal and the second terminal are attached; and a positive temperature coefficient (PTC) thermistor disposed between the first terminal and the second terminal, the PTC thermistor including a first electrode bonded to the first terminal and a second electrode bonded to the second terminal, wherein the PTC thermistor is a surface-mount type thermistor in which the first electrode and the second electrode are exposed on one surface side and wherein, on the one surface side of the PTC thermistor, the first electrode faces the first terminal and the second electrode faces the second terminal.
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4.发明公开公开(公告)号：US20230421019A1
公开(公告)日：2023-12-28
申请号：US18465254
申请日：2023-09-12
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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5.发明申请公开(公告)号：US20180069448A1
公开(公告)日：2018-03-08
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
CPC classification number: H02K5/14 , B60H1/00857 , H01R39/22 , H01R39/24 , H01R39/381 , H02K5/145 , H02K5/24 , H02K7/116 , H02K13/10
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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Patent Agency Ranking
公开(公告)号：US20170302131A1
公开(公告)日：2017-10-19
申请号：US15483622
申请日：2017-04-10
Applicant: MINEBEA MITSUMI INC.
Inventor： Minoru KURODA
CPC classification number: H02K5/225 , H02K5/148 , H02K5/15 , H02K7/08 , H02K11/026 , H02K11/215
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：US20230010839A1
公开(公告)日：2023-01-12
申请号：US17808763
申请日：2022-06-24
Applicant: MINEBEA MITSUMI Inc.
Inventor： Minoru KURODA
Abstract: A motor including: a magnet; a plurality of slots opposing the magnet; coils, the coil extending over and being wound around two slots of the plurality of slots; a commutator including a plurality of segments; and a plurality of brushes including contact portions in contact with the plurality of segments in a circumferential direction, wherein a winding direction of the coil around one slot of the two slots wound around with the coil with the coil extending over the two slots is opposite to a winding direction of the coil around the other slot, and, in the circumferential direction, the coil wound around the one slot is connected to one segment of two adjacent segments of the plurality of segments, and the coil wound around the other slot is connected to the other segment of the two adjacent segments.
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公开(公告)号：US20220247293A1
公开(公告)日：2022-08-04
申请号：US17725005
申请日：2022-04-20
Applicant: MINEBEA MITSUMI INC.
Inventor： Minoru KURODA , Makoto TANAKA
IPC: H02K33/02 , H02K33/00 , H02K5/24 , H02K5/04 , H02K7/065 , B06B1/04 , H02K1/06 , H02K1/34 , H02K5/02
Abstract: A holder is used while attached to a chassis of a vibration generator that moves a vibrator to generate a vibration. The holder includes a vibrator retention unit retaining the vibrator, a fixed unit fixed to the chassis, and an arm. The arm connects the fixed unit and the vibrator retention unit, and the arm supports the vibrator retention unit while the vibrator retention unit can be displaced with respect to the fixed unit. The fixed unit, the arm, and the vibrator retention unit are integrally formed using resin.
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公开(公告)号：US20200220420A1
公开(公告)日：2020-07-09
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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公开(公告)号：US20180375413A1
公开(公告)日：2018-12-27
申请号：US16118083
申请日：2018-08-30
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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