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Aerodynamically enhanced cooling fan

Inactive Publication Date: 2006-10-26
HEWLETT PACKARD DEV CO LP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0005] The problems noted above are solved in large part by a cooling fan comprising a fan housing that connects to a chassis supporting an electronic device. A motor is disposed within the fan

Problems solved by technology

If the temperature exceeds the predetermined range (i.e., the device becomes too hot or too cold), the device may not function correctly, thereby potentially degrading the overall performance of the computer system.
Increasing fan speed can also be accompanied by increased acoustic emissions, increased vibration, and decreased component life.

Method used

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  • Aerodynamically enhanced cooling fan
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Examples

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Embodiment Construction

[0018] The following discussion is directed to various embodiments of the invention. Although one or more of these embodiments may be preferred, the embodiments disclosed should not be interpreted, or otherwise used, as limiting the scope of the disclosure, including the claims. In addition, one skilled in the art will understand that the following description has broad application, and the discussion of any embodiment is meant only to be exemplary of that embodiment, and not intended to intimate that the scope of the disclosure, including the claims, is limited to that embodiment.

[0019] Many computer cooling applications utilize cooling fans that have been designed to minimize the size of the fan. This design methodology results in small fans that face performance limitations, have inherent aerodynamic inefficiencies, and unwanted acoustic emissions. The embodiments described herein illustrate aerodynamic enhancements that can be made to a cooling fan in order to improve performan...

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PUM

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Abstract

A cooling fan comprising a fan housing that connects to a chassis supporting an electronic device. A motor is disposed within the fan housing. A blade assembly is rotatably coupled to the motor. The fan housing has a length at least 10 mm longer than a distance between a leading edge and a trailing edge of the blade assembly.

Description

BACKGROUND [0001] Computer systems include numerous electrical components that draw electrical current to perform their intended functions. For example, a computer's microprocessor or central processing unit (“CPU”) requires electrical current to perform many functions such as controlling the overall operations of the computer system and performing various numerical calculations. Generally, any electrical device through which electrical current flows produces heat. The amount of heat any one device generates generally is a function of the amount of current flowing through the device. [0002] Typically, an electrical device is designed to operate correctly within a predetermined temperature range. If the temperature exceeds the predetermined range (i.e., the device becomes too hot or too cold), the device may not function correctly, thereby potentially degrading the overall performance of the computer system. Thus, many computer systems include cooling systems to regulate the temperat...

Claims

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Application Information

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IPC IPC(8): F28D15/00
CPCF28D15/02F28D15/0266F28D2021/0029F28F1/14H01L23/427H01L23/467H01L2924/0002H01L23/473F28F2250/08H01L2924/00
Inventor FRANZ, JOHN P.VINSON, WADE D.JARRAH, YOUSEF
Owner HEWLETT PACKARD DEV CO LP