Piezoelectric ceramic bimorph coupled to thin metal plate as cooling fan for electronic devices

被引：183

作者：

Yoo, JH

Hong, JI

Cao, W ^{[1
]}

机构：

[1] Penn State Univ, Mat Res Lab, University Pk, PA 16802 USA

[2] Daeyeu Tech Jr Coll, Dept Elect, Soojung Ku, Sungnam, South Korea

[3] Semyung Univ, Dept Elect Engn, Choong Buk, South Korea

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2000年 / 79卷 / 01期

关键词：

piezoelectric fan; vibrating plate; PZT-5; displacement; wind velocity;

D O I：

10.1016/S0924-4247(99)00249-6

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Several types of piezoelectric fans for cooling electronic devices were constructed and tested at 60 Hz, 110 V and 220 V, respectively. The aim of the work is to investigate the possibility of replacing the rotary type of fan in some noise-sensitive electronic devices. Different vibrating metal plates were tested and analyzed theoretically. It is found that the resonant frequency of the vibrating plate decreases with the increase of its length (l) if the length of the piezoelectric ceramic bimorph (L) is kept construct. The series-type fan with l = 31.8 mm, made of phosphor bronze vibrating plate (S6), shows the highest value of fan tip displacement of 35.5 mm and produced wind velocity of 3.1 m/s driven by a 220 V, 60 Hz power source. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：8 / 12

页数：5