公开(公告)号：EP4293261A1

公开(公告)日：2023-12-20

申请号：EP22752875.9

申请日：2022-02-15

申请人： Minebea Mitsumi Inc.

发明人： KURITA, Daisuke ,  IIDA, Masahiro ,  IRIE, Takahiko ,  KODAMA, Daisuke ,  UEDA, Kenta ,  YOSHII, Yuta

IPC分类号： F16K31/126 ,  F04B43/04 ,  A61B5/0225

摘要： A measuring device having a first space for pressurizing an object to be pressurized and a second space independent of the first space. The measuring device is provided with a first exhaust valve that closes or opens a communication port for communication between the first space and another space. The open/closed state of the first exhaust valve changes depending on a pressure difference between the first space and the second space.

公开(公告)号：EP4067654A1

公开(公告)日：2022-10-05

申请号：EP22164515.3

申请日：2022-03-25

申请人： Minebea Mitsumi Inc.

发明人： YOSHII, Yuta ,  SEKIGUCHI, Chikara ,  INAMOTO, Shigenori ,  TAKAHASHI, Yuki ,  KODAMA, Daisuke ,  UEDA, Kenta ,  KURITA, Daisuke ,  KAINUMA, Yoshihisa

IPC分类号： F04B35/04 ,  F04B39/12 ,  F04B39/14 ,  F04B45/047

摘要： A pump 5 contains a sealed chamber 91, a movable wall 92 for changing a volume of the sealed chamber 91, and a vibration actuator 8 which can be electromagnetically driven for displacing the movable wall 92 to discharge fluid in the sealed chamber 91 to an outside of the sealed chamber 91. 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.

公开(公告)号：EP4112935A1

公开(公告)日：2023-01-04

申请号：EP21780810.4

申请日：2021-03-24

申请人： Minebea Mitsumi Inc.

发明人： YOSHII, Yuta ,  INAMOTO, Shigenori ,  TAKAHASHI, Yuki ,  SEKIGUCHI, Chikara ,  KODAMA, Daisuke ,  KURITA, Daisuke

IPC分类号： F04B45/047 ,  B06B1/04

摘要： A pump 1 contains a pump unit 80 for suctioning and discharging fluid due to electromagnetic drive of a vibration actuator 10. The vibration actuator 10 includes a fixed body 20 on which the pump unit 80 is provided and containing one of a coil core portion 62 having a core portion 60 around which a coil 50 is wound and a magnet 70 disposed so as to face an end portion of the core portion 60, a movable body 30 elastically held by magnetic attraction force of the magnet 70 and containing another one of the coil core portion 62 and the magnet 70, and a shaft portion 40 for supporting the movable body 30 so that the movable body can perform reciprocating rotation. The pump unit 80 includes a movable wall 822 which can be moved by rotational movement of the movable body 30, and a sealed chamber 82 whose volume can be changed by displacement of the movable wall 822. The movable body 30 has a pressing portion 35 which can be moved in an arc track around the shaft portion 40 and abut against the movable wall 822 to press the movable wall 822 when the movable body 30 performs the reciprocating rotation to discharge air in the sealed chamber 82 through a discharge portion 86.

公开(公告)号：EP4067653A1

公开(公告)日：2022-10-05

申请号：EP22164404.0

申请日：2022-03-25

申请人： Minebea Mitsumi Inc.

发明人： YOSHII, Yuta ,  SEKIGUCHI, Chikara ,  INAMOTO, Shigenori ,  TAKAHASHI, Yuki ,  KODAMA, Daisuke ,  UEDA, Kenta ,  IRIE, Takahiko ,  KURITA, Daisuke

IPC分类号： F04B35/04 ,  F04B39/00 ,  F04B41/06 ,  F04B45/047

摘要： A pump system 2 contains a pair of pumps 3A, 3B, each of which contains a vibration actuator 8 vibrated by electromagnetic drive and can discharge fluid due to drive of the vibration actuator 8. The pump system 2 has a vibration suppression mode M1 in which the pair of the pumps 3A, 3B are driven so that vibration of the vibration actuators 8 of the pair of pumps 3A, 3B is cancelled each other and a vibration generation mode M2 in which the pair of the pumps 3A, 3B are driven so that the vibration of the vibration actuators 8 of the pair of pumps 3A, 3B is superimposed with each other.

公开(公告)号：EP4019773A1

公开(公告)日：2022-06-29

申请号：EP21216145.9

申请日：2021-12-20

申请人： Minebea Mitsumi Inc.

发明人： YOSHII, Yuta ,  SEKIGUCHI, Chikara ,  INAMOTO, Shigenori ,  TAKAHASHI, Yuki ,  KODAMA, Daisuke ,  KURITA, Daisuke

IPC分类号： F04B17/04 ,  F04B43/02 ,  F04B43/04 ,  F04B45/04 ,  F04B45/047

摘要： A pump system 10 contains a vibration actuator 8 which can be electromagnetically driven by applying an alternating-current voltage E thereto, a sealed chamber 91 connected to a suction port 98 and a discharge port 99, and a movable wall 92 for changing a volume of the sealed chamber 91. The movable wall 92 is displaced due to drive of the vibration actuator 8 to supply fluid in the sealed chamber 91 into a target object. The pump system 10 controls an effective value of the alternating-current voltage E so that an amplitude Y of the vibration actuator 8 is constant.

公开(公告)号：EP4018920A1

公开(公告)日：2022-06-29

申请号：EP21216139.2

申请日：2021-12-20

申请人： Minebea Mitsumi Inc.

发明人： YOSHII, Yuta ,  SEKIGUCHI, Chikara ,  INAMOTO, Shigenori ,  TAKAHASHI, Yuki ,  KODAMA, Daisuke ,  KURITA, Daisuke

IPC分类号： A61B5/021 ,  F04B35/04 ,  F04B39/12 ,  F04B43/02 ,  F04B43/04 ,  F04B45/04 ,  F04B45/047

摘要： A pump system 10 contains a vibration actuator 8 which can be electromagnetically driven, a sealed chamber 91 connected to a suction port 98 and a discharge port 99, and a movable wall 92 for changing a volume of the sealed chamber 91. The movable wall 92 is displaced due to drive of the vibration actuator 8 to supply fluid in the sealed chamber 91 into a cuff 2. The pump system 10 detects pressure in the cuff 2 based on a consumption current of the vibration actuator 8.