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Liquid cooling unit and heat exchanger therefor

A heat exchanger and liquid cooling technology, applied in heat exchange equipment, cooling/ventilation/heating transformation, indirect heat exchangers, etc., can solve problems such as transfer and insufficient heat

Inactive Publication Date: 2008-01-30
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Heat is not adequately transferred from the coolant to the tubes
Coolant heat cannot be dissipated into the air in an efficient manner

Method used

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  • Liquid cooling unit and heat exchanger therefor
  • Liquid cooling unit and heat exchanger therefor
  • Liquid cooling unit and heat exchanger therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] FIG. 1 schematically shows a notebook-type personal computer 11 as a specific example of an electronic device according to a first embodiment of the present invention. The notebook type personal computer 11 includes a thin first housing, a main body housing 12 , and a second housing, a display housing 13 . The display housing 13 is connected to the main body housing 12 for relative rotational movement. The main body housing 12 includes a base 12a and a cover 12b detachably attached to the base 12a. Input means, such as a keyboard 14 and a pointing device 15, are embedded in the surface of the cover 12b, for example. The user operates the keyboard 14 and / or the pointing device 15 to enter commands and / or data.

[0031] A liquid crystal display (LCD) panel module 16 is installed in the display housing 13, for example. The screen of the LCD panel module 16 is exposed in a window 17 defined in the display housing 13 . Text and graphics are displayed on the screen. The ...

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PUM

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Abstract

A heat exchanger allows establishment of first and second flat spaces, namely parallel flat spaces along a reference. The heat exchanger is inserted in a closed circulating loop for coolant. The first and second flat spaces have a cross-section larger than that of a cylindrical duct of the closed circulating loop. These flat spaces serve as a flow passage for the coolant. An increased cross-section enables a reduction in the flow speed of the coolant. The coolant is allowed to slowly flow through the first and second flat spaces. The coolant thus contacts with the first and second plates and the third and fourth plates for a longer time. The heat of the coolant is sufficiently transferred to the first and second plates and the third and fourth plates. The efficiency of heat radiation is enhanced.

Description

technical field [0001] The present invention relates to a liquid cooling unit incorporated, for example, in an electronic device such as a notebook type personal computer. Background technique [0002] For example, as disclosed in Japanese Patent Application Publication No. 2004-293833, a liquid cooling unit is incorporated in a notebook type personal computer. The liquid cooling unit includes a heat exchanger. The heat exchanger includes tubes each defining a flow channel for the coolant. Air flow flows between the tubes. The airflow absorbs heat from the coolant flowing through the tubes. In this way, the coolant is cooled. [0003] The tubes are designed to run along parallel lines in the heat exchanger. The tube is formed as a cylindrical conduit. Since the tubes each have a relatively small cross-section, the coolant flows through the tubes at high speed. The coolant can only contact the tubes for a fairly limited period of time. Heat cannot be adequately transf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K7/20G06F1/20H01L23/473
CPCF28F3/12G06F1/203F28D1/024H01L2924/0002H01L2924/00G06F1/20
Inventor 铃木真纯青木亨匡角田洋介大西益生服部正彦
Owner FUJITSU LTD