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公开(公告)号:US20220316464A1
公开(公告)日:2022-10-06
申请号:US17656186
申请日:2022-03-23
申请人: MINEBEA MITSUMI INC.
发明人: Yuta YOSHII , Chikara SEKIGUCHI , Shigenori INAMOTO , Yuki TAKAHASHI , Daisuke KODAMA , Kenta UEDA , Daisuke KURITA
IPC分类号: F04B43/02
摘要: A pump contains a sealed chamber, a movable wall for changing a volume of the sealed chamber, and a vibration actuator which can be electromagnetically driven for displacing the movable wall to discharge fluid in the sealed chamber to an outside of the sealed chamber. Further, three axes perpendicular to each other are respectively defined as an X axis, a Y axis, and a Z axis. When a direction along the X axis is defined as an X axis direction, a direction along the Y axis is defined as a Y axis direction, and a direction along the Z axis direction is defined as a Z axis direction, an outer shape of the pump is a concave shape in a planar view from the Y axis direction.
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公开(公告)号:US20220213887A1
公开(公告)日:2022-07-07
申请号:US17645270
申请日:2021-12-20
申请人: MINEBEA MITSUMI INC.
发明人: Yuta YOSHII , Chikara SEKIGUCHI , Shigenori INAMOTO , Yuki TAKAHASHI , Daisuke KODAMA , Daisuke KURITA
摘要: A pump system contains a vibration actuator which can be electromagnetically driven by applying an alternating-current voltage E thereto, a sealed chamber connected to a suction port and a discharge port, and a movable wall for changing a volume of the sealed chamber. The movable wall is displaced due to drive of the vibration actuator to supply fluid in the sealed chamber into a target object. The pump system controls an effective value of the alternating-current voltage E so that an amplitude Y of the vibration actuator is constant.
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公开(公告)号:US20230101894A1
公开(公告)日:2023-03-30
申请号:US17802548
申请日:2021-02-26
申请人: Minebea Mitsumi Inc.
发明人: Yuki TAKAHASHI , Chikara SEKIGUCHI , Shigeyuki SHIMOMURA , Yoshihiro KUMANOMIDO , Daisuke KODAMA , Yuta YOSHII , Shigenori INAMOTO
摘要: This vibration actuator comprises a fixed body including a coil, a movable body including a magnet, and an elastic support part that supports the movable body so as to be freely moveable with respect to the fixed body, wherein the coil to which power is supplied and the magnet cooperate to cause the movable body to vibrate with respect to the fixed body. The elastic support part has an outer circumferential part bonded to the fixed body, an annular inner circumferential part disposed inside in the radial direction of the outer circumferential part and bonded to the movable body, and a deforming arm part that couples the outer circumferential part and the inner circumferential part and is elastically deformable. The elastic support part has a sealing part provided in a bonding part between the inner circumferential part and the movable body to seal the bonding part.
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公开(公告)号:US20220316468A1
公开(公告)日:2022-10-06
申请号:US17656192
申请日:2022-03-23
申请人: MINEBEA MITSUMI INC.
发明人: Yuta YOSHII , Chikara SEKIGUCHI , Shigenori INAMOTO , Yuki TAKAHASHI , Daisuke KODAMA , Kenta UEDA , Takahiko IRIE , Daisuke KURITA
摘要: A pump system contains a pair of pumps each of which contains a vibration actuator vibrated by electromagnetic drive and can discharge fluid due to drive of the vibration actuator. The pump system has a vibration suppression mode in which the pair of the pumps are driven so that vibration of the vibration actuators of the pair of pumps is cancelled each other and a vibration generation mode in which the pair of the pumps are driven so that the vibration of the vibration actuators of the pair of pumps is superimposed with each other.
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公开(公告)号:US20220205444A1
公开(公告)日:2022-06-30
申请号:US17645577
申请日:2021-12-22
申请人: MINEBEA MITSUMI INC.
发明人: Yuta YOSHII , Chikara SEKIGUCHI , Shigenori INAMOTO , Yuki TAKAHASHI , Daisuke KODAMA , Daisuke KURITA
IPC分类号: F04B49/08 , F04B45/047 , F04B49/06
摘要: A pump system contains a vibration actuator which can be electromagnetically driven, a sealed chamber connected to a suction port and a discharge port, and a movable wall for changing a volume of the sealed chamber. The movable wall is displaced due to drive of the vibration actuator to supply fluid in the sealed chamber into a cuff. The pump system detects pressure in the cuff based on a consumption current of the vibration actuator.
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公开(公告)号:US20240084793A1
公开(公告)日:2024-03-14
申请号:US18508124
申请日:2023-11-13
申请人: MINEBEA MITSUMI INC.
发明人: Yuta YOSHII , Chikara SEKIGUCHI , Shigenori INAMOTO , Yuki TAKAHASHI , Daisuke KODAMA , Kenta UEDA , Takahiko IRIE , Daisuke KURITA
CPC分类号: F04B49/00 , F04B43/043
摘要: A pump system contains a pair of pumps each of which contains a vibration actuator vibrated by electromagnetic drive and can discharge fluid due to drive of the vibration actuator. The pump system has a vibration suppression mode in which the pair of the pumps are driven so that vibration of the vibration actuators of the pair of pumps is cancelled each other and a vibration generation mode in which the pair of the pumps are driven so that the vibration of the vibration actuators of the pair of pumps is superimposed with each other.
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公开(公告)号:US20230151805A1
公开(公告)日:2023-05-18
申请号:US17907658
申请日:2021-03-24
申请人: MINEBEA MITSUMI INC.
发明人: Yuta YOSHII , Shigenori INAMOTO , Yuki TAKAHASHI , Chikara SEKIGUCHI , Daisuke KODAMA , Daisuke KURITA
IPC分类号: F04B45/047 , B06B1/04
CPC分类号: F04B45/047 , B06B1/045
摘要: A pump contains a pump unit for suctioning and discharging fluid due to electromagnetic drive of a vibration actuator. The vibration actuator includes a fixed body containing one of a coil core portion and a magnet, a movable body containing another one of the coil core portion and the magnet, and a shaft portion for supporting the movable body so that the movable body can perform reciprocating rotation. The pump unit includes a movable wall, and a sealed chamber whose volume can be changed by displacement of the movable wall. The movable body has a pressing portion which can abut against the movable wall to press the movable wall when the movable body performs the reciprocating rotation.
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公开(公告)号:US20230147348A1
公开(公告)日:2023-05-11
申请号:US17907528
申请日:2021-03-24
申请人: MINEBEA MITSUMI INC.
IPC分类号: F04B45/047
CPC分类号: F04B45/047
摘要: A pump control device controls a pump including a vibration actuator for vibrating a vibrating body due to electromagnetic drive caused by electrical current supply to coils, a sealed chamber which includes a movable wall which can be displaced by vibration of the vibrating body so that fluid can be suctioned into an inside of the sealed chamber or discharged from the inside of the sealed chamber, and a discharge portion for communicating the fluid between the sealed chamber and a tank to increase pressure of the fluid. The pump control device contains an obtaining part for obtaining pressure value information, and a control unit for controlling a drive frequency of an electrical current to be supplied to the coils based on the obtained pressure value information.
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公开(公告)号:US20210328491A1
公开(公告)日:2021-10-21
申请号:US17271614
申请日:2019-08-28
申请人: Minebea Mitsumi Inc.
发明人: Yuki TAKAHASHI , Chikara SEKIGUCHI , Shigeyuki SHIMOMURA , Daisuke KODAMA , Yuta YOSHII , Yasutaka KITAMURA , Shigenori INAMOTO
IPC分类号: H02K33/06
摘要: This vibration actuator has: a stationary body having a coil; a movable body having a magnet disposed radially inside the coil; and an elastic support part for supporting the movable body so that the movable body can move relative to the stationary body. The stationary body has a coil holding part. The coil holding part has, on the inner diameter side of the coil, a coil protection wall part. The elastic support part has at least two or more plate springs bridged between the coil holding part and the movable body so as to sandwich the movable body in a vibration direction. In order that the movable body does not come into contact with the coil holding part when not vibrating and when vibrating, the plate springs support the movable body so that the movable body is movable in the vibration direction.
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