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Electrohydrodynamic fluid propulsion technology for thin, low profile or high aspect ratio electronic devices

一种电子装置、流体的技术，应用在热管理领域，能够解决小形状因数等问题

Inactive Publication Date: 2011-11-30
TESSERA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] As designers of electronic devices move toward smaller and smaller form factors, such as the iPhone sold by Apple TM and iPad TM and the ubiquity of ultra-thin handheld devices, therefore, the packaging density of components and subsystems poses a great challenge in terms of thermal management

Method used

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  • Electrohydrodynamic fluid propulsion technology for thin, low profile or high aspect ratio electronic devices
  • Electrohydrodynamic fluid propulsion technology for thin, low profile or high aspect ratio electronic devices
  • Electrohydrodynamic fluid propulsion technology for thin, low profile or high aspect ratio electronic devices

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Embodiment Construction

[0050] As will be appreciated, many of the designs and techniques described herein are particularly suited to the thermal management challenges of densely packed devices and the small form factors typical of modern consumer electronics. In fact, several of the EHD fluid / air mover designs and techniques described herein facilitate active thermal management in electronic equipment where the thickness or industrial design of the electronic equipment precludes or limits thermal performance such as fans, blowers, etc. The feasibility of the mechanical air mover. In some embodiments, the EHD fluid / air mover may be fully integrated into an operating system, such as a pad or laptop computer, projector or video display device, set top box, and the like. In other embodiments, the EHD fluid / air mover may take the form of a subassembly or housing adapted to provide EHD push flow to the system.

[0051] In general, various dimensions, geometries and other design variants are conceivable f...

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Abstract

Surfaces for electromagnetic shielding, retaining electrostatic charge and indeed collecting ion current in EHD fluid mover designs may be formed as or on surfaces of other components and / or structures in an electronic device. In this way, dimensions may be reduced and packing densities increased. In some cases, electrostatically operative portions of an EHD fluid mover are formed as or on surfaces of an enclosure, an EMI shield, a circuit board and / or a heat pipe or spreader. Depending on the role of these electrostatically operative portions, dielectric, resistive and / or ozone robust or catalytic coatings or conditioning may be applied.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Patent Application No. 61 / 348,716, filed May 26, 2010, which is incorporated herein by reference in its entirety. technical field [0003] This application relates to thermal management, and more specifically, to miniature cooling devices that generate ions and electric fields to propel a fluid, such as air, to dissipate heat as part of a thermal management solution. Background technique [0004] Devices configured to use the ionic motion of a fluid are known in the literature by various names such as ion blowers, electric blowers, corona wind pumps, electrohydrodynamic (EFD) devices, electrohydrodynamic (EHD) propellers, EHD air pumps, and EHD Fluid or air mover. Aspects of this technology have also been used in devices such as electrostatic air cleaners or electrostatic precipitators. [0005] When used as part of a thermal management solution, ionic fluid movers c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K7/20H05K9/00G06F1/20
CPCH01L2924/0002H05K7/20172G06F1/203H01L2924/00
Inventor N·朱厄尔-拉森K·A·霍纳R·戈德曼M·K·舒维伯特
Owner TESSERA INC