公开(公告)号：US20180368704A1

公开(公告)日：2018-12-27

申请号：US16118959

申请日：2018-08-31

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kenichiro Kawamura ,  Yukiharu Kodama ,  Kosuke Narita ,  Hiroki Achiwa ,  Hiroshi Takemura

IPC: A61B5/0235 ,  A61B5/022 ,  F16K7/00 ,  F04B45/047

Abstract: A gas control device includes a pump, a valve, a cuff, and a controller. The valve includes a first plate having a first vent hole and a first vent hole, a channel forming plate having an exhaust hole and an exhaust channel, a second plate having a second vent hole, and an edge separation plate. A manchette rubber tube in the cuff is joined to the periphery of the second vent hole in the second plate by an adhesive, and thus the valve is connected to the cuff. The exhaust hole is opened to the atmosphere. The pump includes a pump housing having a discharge hole and a discharge hole. The upper surface of the pump housing is joined to the bottom surface of the edge separation plate.

公开(公告)号：US09482217B2

公开(公告)日：2016-11-01

申请号：US14538979

申请日：2014-11-12

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Atsuhiko Hirata ,  Yoshinori Ando ,  Takenobu Maeda ,  Yukiharu Kodama ,  Kenta Omori

IPC: F04B17/03 ,  F04B43/04 ,  F04B45/047

CPC classification number: F04B43/046 ,  F04B45/047 ,  F04D33/00

Abstract: A fluid control device includes a vibrating plate unit, a driver, and a flexible plate. The vibrating plate unit includes a vibrating plate with first and second main surfaces, a frame plate surrounding the vibrating plate, and a link portion linking the vibrating plate and the frame plate and elastically supporting the vibrating plate against the frame plate. The driver is on the first main surface of the vibrating plate, and vibrates the vibrating plate. The flexible plate having a hole faces the second main surface of the vibrating plate, being fixed to the frame plate. At least a portion of the vibrating plate and the link portion are thinner than the thickness of the frame plate so that the surface of the portion of the vibrating plate and the link portion, on the side of the flexible plate, can separate from the flexible plate.

公开(公告)号：US11047376B2

公开(公告)日：2021-06-29

申请号：US16578438

申请日：2019-09-23

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Atsuhiko Hirata ,  Yukiharu Kodama ,  Kenta Omori

IPC: F04B45/047 ,  F04B17/00 ,  F04B43/04 ,  H01L41/09 ,  F04B43/00

Abstract: A piezoelectric pump includes a leaf spring including a disc portion defining an actuator, an outer frame portion defining a housing, and an elastic support portion. The actuator flexurally vibrates from a center portion of a principal surface thereof to an outer periphery thereof. The elastic support portion includes a beam portion and connection portions and elastically supports the disc portion on the outer frame portion. The beam portion extends in a gap between the disc portion and the outer frame portion in a direction along an outer periphery of the disc portion. A first of the connection portions connects the beam portion to the disc portion. Second and third connection portions are offset from the first connection portion and connect the beam portion to the outer frame portion.

公开(公告)号：US11701014B2

公开(公告)日：2023-07-18

申请号：US16118959

申请日：2018-08-31

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kenichiro Kawamura ,  Yukiharu Kodama ,  Kosuke Narita ,  Hiroki Achiwa ,  Hiroshi Takemura

IPC: A61B5/0235 ,  A61B5/0225 ,  F16K7/17 ,  A61B5/022 ,  F04B45/047 ,  F16K7/00

CPC classification number: A61B5/0235 ,  A61B5/0225 ,  A61B5/02233 ,  F04B45/047 ,  F16K7/00 ,  F16K7/17

Abstract: A gas control device includes a pump, a valve, a cuff, and a controller. The valve includes a first plate having a first vent hole and a first vent hole, a channel forming plate having an exhaust hole and an exhaust channel, a second plate having a second vent hole, and an edge separation plate. A manchette rubber tube in the cuff is joined to the periphery of the second vent hole in the second plate by an adhesive, and thus the valve is connected to the cuff. The exhaust hole is opened to the atmosphere. The pump includes a pump housing having a discharge hole and a discharge hole. The upper surface of the pump housing is joined to the bottom surface of the edge separation plate.

公开(公告)号：US11686396B2

公开(公告)日：2023-06-27

申请号：US17664055

申请日：2022-05-19

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yukiharu Kodama

IPC: F16K7/17 ,  F04B45/04

CPC classification number: F16K7/17 ,  F04B45/04

Abstract: A valve includes: a first plate having a first vent hole; a second plate having a second vent hole; a valve chamber positioned between the first plate and the second plate; a valve body including a third vent hole; an exhaust path-forming plate forming a first flow path between the exhaust path-forming plate and the valve body, forming a second flow path between the exhaust path-forming plate and the second plate, and having a fourth vent hole through which the first flow path is in communication with the second flow path; and a fifth vent hole. The first flow path establishes communication between the second vent hole and the fourth vent hole, and the second flow path establishes communication between the fourth vent hole and the fifth vent hole.

公开(公告)号：US20210088041A1

公开(公告)日：2021-03-25

申请号：US17115523

申请日：2020-12-08

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Atsuhiko Hirata ,  Yukiharu Kodama

IPC: F04B43/04 ,  F04B45/047

Abstract: A pump (1) includes a vibrating plate (15) that has a central part (21), a frame part (22), and connecting parts (23 to 26), a piezoelectric element (16) that is stacked over the central part (21) and configured to cause flexural vibrations to occur concentrically from the central part (21) to the connecting parts (23 to 26), and an opposed plate (13) that is stacked over the frame part (22) and positioned facing each of the connecting parts (23 to 26) with a spacing therebetween. The vibrating plate (15) has such a resonant mode that an antinode occurs in each of the central part (21) and the connecting parts (23 to 26). The opposed plate (13) has, at positions facing the connecting parts (23 to 26), a plurality of channel holes (39 to 43) through which a fluid flows.

公开(公告)号：US12025116B2

公开(公告)日：2024-07-02

申请号：US17661774

申请日：2022-05-03

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yukiharu Kodama

IPC: F04B43/04 ,  F04B45/10

CPC classification number: F04B43/046 ,  F04B45/10

Abstract: A pump apparatus includes a piezoelectric pump, an outer housing, and an adhesive sheet. The piezoelectric pump has a principal surface at which a discharge port for a fluid is formed. The outer housing has a housing channel that communicates with the discharge port, and the outer housing is formed at least partially using a resin having water-containing properties. The adhesive sheet adheres the principal surface of the piezoelectric pump to the outer housing. The outer housing includes a main plate. The main plate has a principal surface that opposes the principal surface of the piezoelectric pump and is in contact with the adhesive sheet. The main plate also has a through-hole that communicate with the discharge port and with the housing channel. The principal surface is formed as a surface of a metal portion.

公开(公告)号：US10890171B2

公开(公告)日：2021-01-12

申请号：US16593451

申请日：2019-10-04

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Atsuhiko Hirata ,  Yukiharu Kodama

IPC: F04B43/04 ,  F04B45/047

Abstract: A pump (1) includes a vibrating plate (15) that has a central part (21), a frame part (22), and connecting parts (23 to 26), a piezoelectric element (16) that is stacked over the central part (21) and configured to cause flexural vibrations to occur concentrically from the central part (21) to the connecting parts (23 to 26), and an opposed plate (13) that is stacked over the frame part (22) and positioned facing each of the connecting parts (23 to 26) with a spacing therebetween. The vibrating plate (15) has such a resonant mode that an antinode occurs in each of the central part (21) and the connecting parts (23 to 26). The opposed plate (13) has, at positions facing the connecting parts (23 to 26), a plurality of channel holes (39 to 43) through which a fluid flows.

公开(公告)号：US10465672B2

公开(公告)日：2019-11-05

申请号：US15333359

申请日：2016-10-25

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Atsuhiko Hirata ,  Yukiharu Kodama ,  Kenta Omori

IPC: F04B43/00 ,  F04B17/00 ,  F04B43/04 ,  F04B45/047 ,  H01L41/09

Abstract: A piezoelectric pump includes a leaf spring including a disc portion defining an actuator, an outer frame portion defining a housing, and an elastic support portion. The actuator flexurally vibrates from a center portion of a principal surface thereof to an outer periphery thereof. The elastic support portion includes a beam portion and connection portions and elastically supports the disc portion on the outer frame portion. The beam portion extends in a gap between the disc portion and the outer frame portion in a direction along an outer periphery of the disc portion. A first of the connection portions connects the beam portion to the disc portion. Second and third connection portions are offset from the first connection portion and connect the beam portion to the outer frame portion.

公开(公告)号：US09506464B2

公开(公告)日：2016-11-29

申请号：US13908022

申请日：2013-06-03

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Atsuhiko Hirata ,  Yukiharu Kodama ,  Kenta Omori

IPC: F04B17/00 ,  F04B45/047 ,  F04B43/04 ,  H01L41/09

CPC classification number: F04B43/0054 ,  F04B17/003 ,  F04B43/046 ,  F04B45/047 ,  F04B2203/0406 ,  H01L41/0973

Abstract: A piezoelectric pump includes a leaf spring including a disc portion defining an actuator, an outer frame portion defining a housing, and an elastic support portion. The actuator flexurally vibrates from a center portion of a principal surface thereof to an outer periphery thereof. The elastic support portion includes a beam portion and connection portions and elastically supports the disc portion on the outer frame portion. The beam portion extends in a gap between the disc portion and the outer frame portion in a direction along an outer periphery of the disc portion. A first of the connection portions connects the beam portion to the disc portion. Second and third connection portions are offset from the first connection portion and connect the beam portion to the outer frame portion.

Abstract translation: 压电泵包括板簧，其包括限定致动器的盘部分，限定壳体的外框部分和弹性支撑部分。 致动器从其主表面的中心部分弯曲地振动到其外周。 弹性支撑部分包括梁部分和连接部分，并且弹性支撑外框部分上的盘部分。 梁部分在盘部分和外框架部分之间的间隙沿着盘部分的外周的方向延伸。 第一连接部分将梁部分连接到盘部分。 第二和第三连接部分从第一连​​接部分偏移并且将梁部分连接到外部框架部分。