Fractal micro-channel cold plate with bidirectional flow path

Abstract

The invention discloses a fractal micro-channel cold plate with a bidirectional flow path. The cold plate comprises a liquid inlet plate, a middle plate and a liquid returning plate, wherein the liquid returning plate comprises a first inlet liquid dividing channel, a second inlet liquid dividing channel and liquid inlet zero-grade branch channels. The first inlet liquid dividing channel is connected with the liquid inlet zero-grade branch channels in the odd-number rows. The second inlet liquid dividing channel is connected with the liquid inlet zero-grade branch channels in the even-number rows. The middle plate comprises hollowed holes which are set in correspondence with the liquid inlet zero-grade branch channels. The liquid returning plate comprises a first outlet liquid collecting channel, a second outlet liquid collecting channel and liquid collecting zero-grade branch channels. The first outlet liquid collecting channel is connected with the liquid collecting zero-grade branchchannels in the even-number rows, and the second outlet liquid collecting channel is connected with the liquid collecting zero-grade branch channels in the odd-number rows. The fractal micro-channelcold plate with the bidirectional flow path has advantages of improving duty ratio and heat exchange area of the micro-channels on the cold plate, and improving temperature homogeneity and heat radiation performance on the surface of the cold plate.

Description

technical field [0001] The invention relates to the technical field of heat exchange equipment, in particular to a fractal micro-channel cold plate with bidirectional flow paths. Background technique [0002] With the improvement of the chip manufacturing process, the integration of the chip is getting higher and higher, and the power per unit volume is getting higher and higher, and the chip will generate a lot of heat during operation. If the heat cannot be dissipated in a timely and even manner, it will cause the whole or part of the chip to overheat and burn. This requires that the heat sink for cooling the chip has a large enough heat dissipation capacity, and the temperature of the heat dissipation surface is uniform without local overheating. [0003] As a liquid-cooled radiator with compact structure and strong heat transfer capacity, the micro-channel cold plate is considered to be the most effective means for heat dissipation and cooling of high-power integrated c...

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Problems solved by technology

[0006] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to solve the problem of uneven temperature of the existing one-way flow path cold plate, and it is necessary to invent a new two-way flow path micro-channel cold plate to solve how to arrange the two-way cold plate. Difficulties of isolated and cross-counterflow channel chambers

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