Feasibility and design study of a frictionless air mover for thermal management of electronics

Eurotherm Seminar 102: Thermal Management of Electronic Systems

物理学;无线电电子学

Schacht, R.^1 ; Hausdorf, A.^1 ; Wunderle, B.^2

Brandenburg University of Technology, Cottbus-Senftenberg Grossenhainerstrasse 57, Senftenberg, D-01968, Germany^1

Chemnitz University of Technology, Reichenhainerstrasse 70, D-09126 Chemnitz, Germany^2

关键词: Comprehensive designs;    Feasibility analysis;    Flexible blades;    Piezoelectric fans;    Piezoelectric-driven;    Polymer materials;    Static pressure;    Volumetric flow rate;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/525/1/012026/pdf
DOI  :  10.1088/1742-6596/525/1/012026

来源: IOP

【 摘 要 】

A frictionless air mover concept is introduced in this paper. As opposed to a piezoelectric driven fan, the air mover is based on a flexible blade whose vibration is driven by means of a magnetic field. The blade is based on a polymer material. The paper presents the results of a feasibility analysis and an on-going comprehensive design study. The performance of the prototype amounted to 65% of a comparable piezoelectric fan. To enhance the performance, two different blade materials were investigated, as well as the influence of the coil shape and value. A further goal is to reduce the size and to investigate the influence of a casing. The design study resulted in a prototype of size of 50 × 14 × 35 mm2including a casing. The performance could be doubled, to attain a volumetric flow rate of ∼14 l/min and a static pressure of ρstat 3 Pa.