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Cooling apparatus and electronic device comprising same

A technology for cooling equipment and housings, which can be used in projection devices, structural components of electrical equipment, cooling/ventilation/heating renovation, etc., and can solve the problems of difficulty in fans and increased vibration and noise of motors.

Inactive Publication Date: 2009-03-25
NEC DISPLAY SOLUTIONS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this is not a preferred option because the higher rotational speed of the motor results in vibration of the motor and increased operating noise
Furthermore, in a heat source such as a light source that locally generates heat, it is preferable to locally cool down the heat generation point, and fans have difficulty in performing such local cooling

Method used

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  • Cooling apparatus and electronic device comprising same
  • Cooling apparatus and electronic device comprising same
  • Cooling apparatus and electronic device comprising same

Examples

Experimental program
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Embodiment Construction

[0023] figure 1 is a perspective view showing the configuration of a pump unit of a cooling device according to an exemplary embodiment of the present invention, and FIG. 2 is figure 1 An exploded perspective view of the pump unit shown in .

[0024] refer to figure 1 As shown in FIG. 2 , the pump unit is a detachable unit that can be installed in the housing of the projector, and the pump unit mainly includes a pump body 1 , a pump holder 2 , a connecting pipe 3 and a cover 4 .

[0025] The pump main body 1 sucks air from an air inlet 12 for compression, and discharges the compressed air from an air outlet 11 . A cylindrical filter 14 is attached to the air inlet 12 for preventing debris from being introduced into the pump. Portions of the pump main body 1 that may be in contact with other members are covered by a packing member. The pad member is made of an elastic material capable of absorbing vibrations and shocks, such as spongy rubber or synthetic resin. In FIG. 2, ...

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PUM

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Abstract

A cooling apparatus comprises cover 4 equipped with pump body 1, and a housing on which cover 4 is removably mounted. The housing includes a vent forming surface formed with a vent for introducing air into the housing, and a protrusion provided on the vent forming surface so as to surround the vent. Cover 4 includes a communication pipe whose one end fitted into a discharge port of a pressure pump, sheet-type packing 3a which is provided on an another end of said communication pipe and in which an opening at said another end of said communication pipe is positioned in a center portion, and pump fixture 2 for attaching the other end of the communication pipe.

Description

technical field [0001] The present invention relates to a cooling device for cooling heat sources such as a light source and a CPU. Background technique [0002] A liquid crystal projector includes a cooling device for cooling heat sources such as a light source and a liquid crystal panel. Fans are widely used as cooling devices. However, fan-based cooling, which simply supplies air throughout the heat source, has struggled to achieve sufficient cooling. In order to achieve a great cooling effect in fan based cooling, the motor has to spin at a higher speed to increase the velocity of the air. However, this is not a preferred option because the higher rotation speed of the motor results in vibration of the motor and an increase in operating noise. Furthermore, in a heat source such as a light source that locally generates heat, it is preferable to locally cool down the heat generation point, and a fan has difficulty in performing such local cooling. [0003] Therefore, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/16H01L23/467H05K7/14H05K7/20
CPCH05K7/20172G06F1/20G03B21/16
Inventor 李定锡
Owner NEC DISPLAY SOLUTIONS LTD