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1. (US20130037245) Piezoelectric fan and air cooling apparatus using the piezoelectric fan

专利局 : 美国
申请号: 13370341 申请日: 10.02.2012
公布号: 20130037245 公布日: 14.02.2013
授权号: 09368426 授权日: 14.06.2016
公布类型: B2
国际专利分类:
H01L 23/467
F04D 33/00
H05K 7/20
H 电学
01
基本电气元件
L
半导体器件;其他类目中不包括的电固体器件
23
半导体或其他固态器件的零部件
34
冷却装置;加热装置;通风装置或温度补偿装置
46
包含有用流动流体传导热的
467
通过流动气体的,例如空气的
F 机械工程;照明;加热;武器;爆破
04
D
非变容式泵
33
除纯旋转之外的非变容式泵,例如摆动式的
H 电学
05
其他类目不包含的电技术
K
印刷电路;电设备的外壳或结构零部件;电气元件组件的制造
7
对各种不同类型电设备通用的结构零部件
20
便于冷却、通风或加热的改进
申请人: Masayoshi Tanida
Murata Manufacturing Co., Ltd.
Midori Sunaga
Hiroaki Wada
发明人: Masayoshi Tanida
Midori Sunaga
Hiroaki Wada
代理人: Keating & Bennett, LLP
优先权数据: 2009-201239 01.09.2009 JP
标题: (EN) Piezoelectric fan and air cooling apparatus using the piezoelectric fan
摘要: front page image
(EN)

A piezoelectric fan includes a vibration plate one end of which in a length direction is supported in a fixed manner and the other end of which in the length direction is a free end; and piezoelectric elements, attached on at least one of front and back surfaces of the vibration plate. In an intermediate portion of the vibration plate in the length direction, a right-angle bent portion is provided, and a plurality of divided blades are defined by slits in an area of the vibration plate extending from the free end to a position located a predetermined distance from the bent portion toward the free end. The piezoelectric element is attached on the portion of the vibration plate between the fixed end and the bent portion. Hence, variations in resonant frequency among the blades are reduced and the blades are efficiently excited using a common piezoelectric element.


也发表为:
JPWO2011027704CN102483075WO/2011/027704