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System and method for thermal management using distributed synthetic jet actuators

An actuator and thermal management technology, applied in the field of thermal management, can solve the problems such as the inability to effectively remove heat and the increase of the temperature of the casing of the handheld device.

Inactive Publication Date: 2006-10-11
GEORGIA TECH RES CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The difficulty with employing a heat spreading strategy is simply that it often does not remove enough heat effectively
In addition, the dissipated heat can lead to an increase in the temperature of the handheld device housing, which is undesirable from a consumer ergonomics standpoint

Method used

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  • System and method for thermal management using distributed synthetic jet actuators
  • System and method for thermal management using distributed synthetic jet actuators
  • System and method for thermal management using distributed synthetic jet actuators

Examples

Experimental program
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Effect test

Embodiment Construction

[0036] I. Synthetic Jet Actuator

[0037] A. Basic design of a typical synthetic jet actuator

[0038] Figure 1A An example of a synthetic jet actuator 10 is shown, including a housing 11 defining and enclosing an inner chamber 14 . The housing 11 and inner chamber 14 can take virtually any geometric configuration, but for ease of discussion and understanding, they are shown in cross-section in Figure 1A The housing 11 in has a stiff side wall 12, a stiff front wall 13, and a rear diaphragm 18 that is deformable to a degree to allow the diaphragm 18 to move inwardly and outwardly relative to the inner chamber 14. The front wall 13 has an aperture 16 which may be of any shape. The orifice is diametrically opposed to the rear diaphragm 18 and connects the inner chamber 14 to the external environment with a peripheral fluid 39 .

[0039] Movement of flexible diaphragm 18 may be controlled by any suitable control system 24 . For example, the diaphragm 18 may be provided with ...

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PUM

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Abstract

One embodiment of the device comprises a device for thermal management. More particularly, one embodiment comprises a synthetic jet actuator (60) and a tube (61). The synthetic jet actuator (60), though not required, typically comprises a housing (47) defining an internal chamber (45) and having an orifice (46) in a wall (44) of the housing (47). The synthetic jet actuator (60) typically also comprises a flexible diaphragm (42) forming a portion of the housing (47). The tube (61) of this exemplary embodiment typically comprises a proximal end (64) and a distal end (65), the proximal end (64) being positioned adjacent to the synthetic jet actuator (60). In this embodiment, operation of the synthetic jet actuator (60) causes a synthetic jet stream (52) to form at the distal end (65) of the tube (61).

Description

technical field [0001] The present invention generally relates to thermal management technology, and more particularly to systems and methods for cooling heat-generating bodies or components using distributed jet flow actuators. Background technique [0002] Cooling heat-generating bodies is a concern in many different technical fields. Especially in microprocessors, increasing heat dissipation levels with shrinking thermal budgets create a need for new cooling approaches that go beyond traditional thermal management techniques. Additionally, the need for effective thermal management strategies for use in small handheld devices such as portable digital assistants (PDA's), mobile phones, portable CD players, and similar consumer products has greatly increased. Indeed, thermal management is a major challenge in the design and packaging of state-of-the-art integrated circuits in both single-chip and multi-chip modules. [0003] Traditionally, the need to cool large microelect...

Claims

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Application Information

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IPC IPC(8): F04B17/00
Inventor 阿瑞·格莱泽拉加文乔恩·马哈林格姆
Owner GEORGIA TECH RES CORP
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