公开(公告)号：US20160010636A1

公开(公告)日：2016-01-14

申请号：US14858737

申请日：2015-09-18

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Nobuhira TANAKA ,  Daisuke KONDO ,  Kiyoshi KURIHARA

IPC: F04B45/047 ,  F04B53/08

CPC classification number: F04B45/047 ,  F04B43/046 ,  F04B53/08 ,  F04F7/00

Abstract: A piezoelectric blower includes an outer casing and a blower main body. The outer casing houses the blower main body. The blower main body includes a top plate, side plate, first vibrating plate, piezoelectric element, intermediate plate, second vibrating plate, side plate, and bottom plate and has a structure in which they are laminated in sequence. The top plate, side plate, and first vibrating plate define a columnar first blower space. The second vibrating plate, side plate, bottom plate define a columnar second blower space. The distance from a neutral plane of the piezoelectric element in the thickness direction to a surface of the second vibrating plate, the surface being near the piezoelectric element, is longer than the distance from the neutral plane to a surface of the first vibrating plate, the surface being near the piezoelectric element.

Abstract translation: 压电鼓风机包括外壳和鼓风机主体。 外壳容纳鼓风机主体。 鼓风机主体包括顶板，侧板，第一振动板，压电元件，中间板，第二振动板，侧板和底板，并且具有依次层叠的结构。 顶板，侧板和第一振动板限定了柱状的第一鼓风机空间。 第二振动板，侧板，底板限定了柱状的第二鼓风机空间。 压电元件的中性平面在厚度方向到第二振动板的表面（靠近压电元件的表面）的距离比从中性面到第一振动板的表面的距离长， 表面靠近压电元件。

公开(公告)号：US20140178220A1

公开(公告)日：2014-06-26

申请号：US14066958

申请日：2013-10-30

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Masaaki FUJISAKI ,  Kiyoshi KURIHARA ,  Daisuke KONDO

IPC: F04B43/04

CPC classification number: F04B43/046 ,  F04B45/047 ,  F04F7/00

Abstract: A piezoelectric micro-blower includes an inner case to which a peripheral portion of a vibrating plate including a piezoelectric element is fixed such that a blower chamber is defined between the inner case and the vibrating plate and an outer case arranged to cover an outer periphery of the inner case with a gap therebetween. The inner case is elastically retained in the outer case by a plurality of connecting portions. A first opening is provided in a top plate portion of the inner case that faces a central portion of the vibrating plate, and a second opening is provided in a top plate portion of the outer case that faces the first opening. A central space is provided between the top plate portions, and fluid introduced from the outside is guided to the central space through the gap between the inner and outer cases.

Abstract translation: 一种压电微型鼓风机，包括内壳体，其中包括压电元件的振动板的周边部分固定在内壳体和振动板之间限定鼓风机室，外壳体设置成覆盖外壳 内壳体之间具有间隙。 内壳通过多个连接部分弹性地保持在外壳中。 第一开口设置在内壳体的面对振动板的中心部分的顶板部分中，并且第二开口设置在外壳体的面向第一开口的顶板部分中。 在顶板部之间设置中央空间，从外侧引入的流体通过内外壳之间的间隙被引导到中央空间。