T-shaped longitudinal micro-channel cold plate with inclined channels

Abstract

The invention discloses a T-shaped longitudinal micro-channel cold plate with inclined channels. The micro-channel cold plate comprises a cold plate base plate and a cold plate cover plate. A micro-channel flow channel on the cold plate base plate is longitudinally arranged, a unitization design is achieved, cooling of heat sources of different areas can be achieved by increasing or decreasing thenumber of micro-channel flow channel units, and meanwhile a defect that micro-channels arranged in a conventional transverse series flow mode are poor in temperature uniformity can be overcome. Eachmicro-channel unit is formed by integrating a plurality of single micro-channels, meanwhile, inclined channels with certain angles are arranged on rib walls of the micro-channels to achieve stirring and mixing in different channels, and a boundary layer is broken to strengthen stirring and mixing so as to strengthen heat exchange. The micro-channel cold plate is simple in structure and convenientto machine while achieving a more uniform and efficient micro-channel cold plate heat dissipation function, and can be applied to heat dissipation of high-power electronic devices.

Description

technical field [0001] The invention belongs to the technical field of electronic information. Background technique [0002] With the continuous improvement of the heat flux density of electronic devices, the microchannel cold plate in a limited space has gradually become a common method to solve the heat dissipation under high heat flux density. The structure of the micro-channel cold plate can be large or small. In order to improve the cooling efficiency, a micro-channel cold plate is generally used to cool multiple heat sources. The cooling effect is better when the heat sources are less distributed and more regular, but when the heat sources are more distributed and scattered, The cooling effect of the micro-channel cold plate will be significantly weakened at the position partly close to the heat source at the rear of the flow channel. At the same time, the layout of the channel structure of the microchannel cold plate will also have a significant impact on the cooling...

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Problems solved by technology

[0004] In order to improve the temperature uniformity of the cold plate and uneven flow distribution, the present invention is analogous to the idea of ​​parallel pipelines, designing the microchannel flow channel as a unit module, and connecting it in parallel with the main flow channel, so that the heat sources at the front and rear of the flow channel can obtain similar temperatures Cooling liquid is used for cooling to improve the temperature uniformity of the heat source surface. At the same time, an inclined channel is designed on the flow channel rib of the micro-channel flow channel unit to connect each micro-channel flow channel to strengthen the mixing of the cooling liquid and enhance the heat transfer efficiency. , and at the same time achieve the effect of further improving the temperature uniformity of the cold plate

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