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Water-cooled heat sink and water-cooled system

A technology of heat-absorbing equipment and water-cooling system, applied in lighting and heating equipment, cooling/ventilation/heating renovation, indirect heat exchanger, etc., can solve problems such as poor processability and increased flow resistance.

Inactive Publication Date: 2008-02-06
ALPS ALPINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the channel groove is made thinner (increasing the number of walls) in order to increase the cross-sectional area of ​​the channel, the workability will be deteriorated and the channel resistance will be increased.

Method used

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  • Water-cooled heat sink and water-cooled system
  • Water-cooled heat sink and water-cooled system
  • Water-cooled heat sink and water-cooled system

Examples

Experimental program
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Effect test

Embodiment Construction

[0020] FIG. 1 is a conceptual diagram of a water-cooling system including a water-cooled heat sink 10 of the present invention. The water-cooled heat absorber 10 is made of thermally conductive metal material, and has a continuous coolant flow path 11 inside. ) 12 is connected to the outlet hole (exit port) 13. The inlet hole 12 communicates with the discharge port 16 of the liquid pump 15 through the suction communication path 14 , and the outlet hole 13 communicates with the suction port 18 of the liquid pump 15 through the discharge communication path 17 . The discharge communication path 17 is provided with a heat dissipation unit 19 composed of a radiator (radiator) 19a and a cooling fan 19b. The CPU 20 , which is exemplified as a heat source, is in thermal contact with the water-cooled heat sink 10 . If the liquid pump 15 is driven, the cooling liquid enters the cooling liquid flow path 11 of the water-cooled heat absorbing device 10 from the ejection port 16, the suct...

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PUM

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Abstract

There is provided a water-cooled heat sink including first and second heat transfer channel plates that are stacked and coupled together. The first heat transfer channel plate is provided with a continuous recess that is located in a facing surface thereof that faces the second heat transfer channel plate, corresponds to the coolant channel, and is open at the facing surface, the second heat transfer channel plate is provided with a continuous protrusion, which is fitted into the recess of the first heat transfer channel plate with a gap therebetween, in a facing surface thereof that faces the first heat transfer channel plate, and the first and second heat transfer channel plates are stacked and coupled together to define the coolant channel between the recess and the protrusion.

Description

technical field [0001] The present invention relates to a water-cooled heat sink and a water-cooling system for dissipating heat from a heat source. Background technique [0002] Water-cooled heat sinks, such as those used to dissipate heat from a heat-generating CPU (heat source), are equipped with a coolant flow path in the heat-conducting block that is in thermal contact with the heat-generating source. In order to increase the effective length of the coolant flow path, attempts have been made to make the shape of the coolant flow path into a swirl shape or the like (Patent Documents 1, 2, and 3). The basic concept of absorbing heat from a heat source in contact with a heat sink and cooling it by the flow of water (coolant) is common. [0003] Patent Document 1: Japanese Patent Application Laid-Open No. 8-97337 [0004] Patent Document 2: Japanese Patent Application Laid-Open No. 8-204079 [0005] Patent Document 3: Japanese Patent Laid-Open No. 2003-234589 [0006] I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K7/20H01L23/473
CPCH01L2924/0002H01L23/473F28D1/0308F28D2021/0029H01L2924/00
Inventor 中岛二郎大西人司
Owner ALPS ALPINE CO LTD