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公开(公告)号：US12129888B2
公开(公告)日：2024-10-29
申请号：US18005742
申请日：2021-07-27
申请人： MINEBEA MITSUMI Inc.
发明人： Yoji Uchida , Hideo Fujiura , Tatsuya Takimoto , Yoji Iguchi
IPC分类号： F16C19/52 , F16C19/16 , F16C35/07 , F16C35/073 , F16C35/077 , G01L5/00 , F16C19/18
CPC分类号： F16C19/522 , F16C19/163 , F16C35/073 , F16C35/077 , G01L5/0019 , F16C19/183 , F16C19/184 , F16C2233/00
摘要： A rolling bearing holder unit disclosed herein includes: a rolling bearing with a predetermined rotation axis, the rolling bearing including: an outer ring; an inner ring placed inward relative to an inner circumferential surface of the outer ring to be coaxial with the outer ring; and a plurality of rolling bodies placed between the outer ring and the inner ring; a bearing holder placed in contact with an outer circumferential surface of the outer ring or an inner circumferential surface of the inner ring in the rolling bearing; and a strain gauge with a resistor that is configured to detect a strain of the outer ring or the inner ring. In this rolling bearing holder unit: the bearing holder has a thick part and a thin part that is thinner than the thick part; the strain gauge is placed on the thin part; the rolling bearing is preloaded to form a predetermined contact angle; and the thick part is placed in contact at least with a region extending from an intersection of a straight line indicating the predetermined contact angle and the outer circumferential surface of the outer ring or the inner circumferential surface of the inner ring, to a preloaded end surface, the preloaded end surface being an end surface of the outer ring or the inner ring located nearer to the intersection.
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公开(公告)号：US20240356399A1
公开(公告)日：2024-10-24
申请号：US18684988
申请日：2021-08-31
申请人： MINEBEA MITSUMI Inc.
发明人： Takuji YAMADA , Toru WATANABE
IPC分类号： H02K1/278
CPC分类号： H02K1/278 , H02K2201/03
摘要： A motor includes: a rotor including a yoke, a first magnet, and a second magnet opposing the first magnet; and a stator. The yoke includes a hole and a frame surrounding the hole. The first magnet is disposed in the hole of the yoke. The second magnet includes a first surface opposing the frame of the yoke in the peripheral direction and a second surface opposing the stator in the radial direction.
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公开(公告)号：US20240356398A1
公开(公告)日：2024-10-24
申请号：US18294236
申请日：2022-07-08
申请人： MINEBEA MITSUMI Inc.
发明人： Takuji YAMADA , Kouji KEBUKAWA , Toru WATANABE , Naoto TOYOMURA
CPC分类号： H02K1/2773 , H02K21/16
摘要： Provided is a rotor allowing effectively utilizing magnetic flux generated from a magnet, a motor using the rotor, and an electronic device. Provided are a rotor, a motor using the rotor, and an electronic device, the rotor including a plurality of magnetic bodies stacked in an axial direction and a plurality of magnets. The magnetic body includes: an annular part; a plurality of magnetic pole pieces extending in a radial direction; and a plurality of coupling parts configured to couple each of the plurality of magnetic pole pieces and the annular part. The plurality of magnets are each disposed between two adjacent magnetic pole pieces among the plurality of magnetic pole pieces in a circumferential direction. The coupling part extends with both components including a component in the radial direction and a component in the circumferential direction.
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公开(公告)号：US12113418B2
公开(公告)日：2024-10-08
申请号：US17487130
申请日：2021-09-28
摘要： A vibration actuator includes: a fixing body including a base part and a magnetic suction force generation part including a core on which a coil is wound; a movable body including a presentation part connecting part connectable to a vibration presentation part, and a suction part composed of a magnetic material; and a first elastic support part and a second elastic support part, the first elastic support part and the second elastic support part being configured to elastically support the movable body. A suction force of the magnetic suction force generation part is generated by energization to the coil, and a vibration along the base extending direction is applied to the vibration presentation part through the movable body.
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公开(公告)号：US20240326728A1
公开(公告)日：2024-10-03
申请号：US18573722
申请日：2022-06-28
申请人： MINEBEA MITSUMI Inc.
发明人： Shinji TANAKA , Atsushi KIKUCHI
IPC分类号： B60R16/033 , E05F15/611 , H02J7/00
CPC分类号： B60R16/033 , E05F15/611 , H02J7/00711 , H02J7/007182 , E05Y2900/531 , H02J2207/20
摘要： A power supply device includes an electrical storage device and a bidirectional buck-boost converter having a charging function of starting charging of the electrical storage device based on input power from a power system of a vehicle, upon occurrence of a condition in which a voltage of the electrical storage device decreases to a first threshold and of stopping the charging of the electrical storage device, upon occurrence of a condition in which the voltage of the electrical storage device increases to a second threshold that is greater than the first threshold. The bidirectional buck-boost converter has a boost function of stepping up the voltage of the electrical storage device. The power supply device includes a control circuit configured to cause the boost circuit to perform a boost operation such that a boosted voltage that is higher than the voltage of the electrical storage device is supplied to a load device, and such that the boosted voltage is a constant voltage.
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6.发明公开公开(公告)号：US20240307566A1
公开(公告)日：2024-09-19
申请号：US18044840
申请日：2021-06-22
申请人： MINEBEA MITSUMI Inc.
发明人： Shogo IMAMURA , Yoshihiro SAGAWA
CPC分类号： A61L2/0047 , A61L2/24 , A61L2202/11 , A61L2202/14
摘要： A sterilization system of an embodiment includes a light source unit, a horizontal angle adjustment unit and/or a vertical angle adjustment unit, and a controller. The light source unit emits ultraviolet rays in a radiating form. The horizontal angle adjustment unit adjusts a horizontal angle of the light source unit by causing rotation of the light source unit in a horizontal direction. The vertical angle adjustment unit adjusts a vertical angle of the light source unit by causing rotation of the light source unit in a vertical direction. The controller captures a target of sterilization from a camera image, controls rotation of the horizontal angle adjustment unit and/or the vertical angle adjustment unit, and irradiates the target with the ultraviolet rays from the light source unit.
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公开(公告)号：US12081065B2
公开(公告)日：2024-09-03
申请号：US17759112
申请日：2021-02-04
申请人： MINEBEA MITSUMI Inc.
发明人： Hirofumi Ohba , Kodai Kameoka
IPC分类号： H02K1/24 , H02K1/16 , H02K15/02 , H02K15/085
CPC分类号： H02K1/165 , H02K15/026 , H02K15/085
摘要： A motor capable of increasing cogging torque is provided. A motor includes a shaft; a magnetic member including a core including an annular portion and a plurality of spokes and a coil; and a magnet, wherein one of the magnetic member and the magnet is disposed at an inner side of the other; an end portion of each of the spokes and the magnet oppose one another in radial directions nm; the core includes a pair of magnetic pole portions at the end portion of each of the spokes, the a pair of magnetic pole portions extending in both directions of circumferential directions xy; and of the pair of magnetic pole portions of at least one spoke from among the plurality of spokes, the magnetic pole portion at an x side has a larger magnetic resistance than the magnetic pole portion at a y side.
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公开(公告)号：US20240283308A1
公开(公告)日：2024-08-22
申请号：US18571328
申请日：2022-03-30
申请人： MINEBEA MITSUMI Inc.
发明人： Yutaka KAMOGI , Junichi MIYAKI
IPC分类号： H02K1/274
CPC分类号： H02K1/274
摘要： A rotor includes a rotor core, a magnet, and a cover. The rotor core includes an annular portion and a plurality of magnetic pole pieces. The magnet is disposed between two magnetic pole pieces adjacent to each other in a circumferential direction of the plurality of magnetic pole pieces. The cover covers an outer peripheral portion of the magnet, and is formed of a non-magnetic member or a member having magnetism lower than magnetism of the rotor core.
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9.发明公开公开(公告)号：US20240280385A1
公开(公告)日：2024-08-22
申请号：US18561002
申请日：2022-03-25
申请人： MINEBEA MITSUMI Inc.
发明人： Takanori TATEI
CPC分类号： G01D5/2448 , G01D18/001
摘要： To suppress a maximum value of an angle deviation regardless of the position of a rotating body at the time of start-up. An absolute encoder includes a sensor configured to generate a signal indicating a value of a predetermined physical quantity varying depending on a rotation of a rotating body, a computer configured to generate angle information indicating an angle of the rotating body on the basis of the signal the computer determines an offset value for correcting an angle deviation indicating a difference between an angle indicated by the angle information and an actual angle of the rotating body to reduce the angle deviation, on the basis of the angle information at the time of start-up and a predetermined coefficient, and the computer corrects the angle deviation by using the offset value. The coefficient is calculated on the basis of the angle deviation.
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公开(公告)号：US20240271920A1
公开(公告)日：2024-08-15
申请号：US18567970
申请日：2022-03-24
申请人： MINEBEA MITSUMI Inc.
发明人： Aya ONO , Yosuke OGASA , Toshiaki ASAKAWA , Akiyo YUGUCHI , Atsushi KITAMURA
摘要： The present strain gauge is a strain gauge installed on a Roberval-type strain generator, and includes a substrate having flexibility; and a resistor formed of a film that contains Cr, CrN, and Cr2N over the substrate, wherein a film thickness of the resistor is greater than or equal to 6 nm and less than or equal to 100 nm.
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