A wedge-shaped micro-groove group micro-cold plate
A technology of micro-grooves and cold plates, applied in cooling/ventilation/heating transformation, electrical components, electrical equipment structural parts, etc., can solve the problems of large hydraulic pressure loss, large power consumption, etc. The effect of low power consumption and high heat dissipation efficiency
Active Publication Date: 2019-07-05
SOUTH CHINA UNIV OF TECH
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Problems solved by technology
Existing research results show that narrower channels, that is, smaller hydraulic diameters and larger channel aspect ratios can enhance the heat transfer performance of traditional rectangular microchannels, but at the same time lead to greater hydraulic pressure loss with greater power dissipation
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[0010] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the embodiments and accompanying drawings.
[0011] Such as figure 1 and figure 2 As shown, the overall structure of the wedge-shaped micro-groove group micro-cold plate and the wedge-shaped micro-channel structure are respectively. The micro-cold plate is composed of a series of wedge-shaped micro-channel unit arrays with the same structure and shape. W is the total length and width of the micro-cold plate, respectively, H t 、H c with H b are the heights of the cover plate, the channel and the base of the micro-cold plate, respectively, W w with W c are the widths of the ribs and channels of the micro-cold plate, respectively.
[0012] In the section from the entrance to the exit of the wedge-shaped microchannel, the channel width converges linearly toward the central axis, while the ...
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The invention discloses a wedge microgroove group micro cold plate. The micro cold plate is composed of a series of wedge microgroove channel arrays which are identical in structure and shape. The groove channel width linearly converges to the central axis direction in the section from the inlet of the wedge microgroove channels to the outlet of the groove channels, the groove channel height linearly diverges in the vertical and upward direction, and the groove channel width convergence ratio and the groove channel height divergence ratio are mutually reciprocal. The wedge microgroove group micro cold plate is high in heat radiation efficiency and high in fluid-structure interaction heat transfer capability so that the heat radiation requirements of the ultrahigh thermal power density electrical parts and components and systems can be met, the hydraulic pressure loss is low, the required power consumption is low and the development of the heat radiation technology of the microgroove group micro cold plate can be facilitated.
Description
technical field [0001] The invention relates to a novel micro-groove group micro-cold plate, in particular to a wedge-shaped micro-groove group micro-cold plate. Background technique [0002] In order to adapt to the miniaturization and high-power development of microelectronic components and systems, as well as the heat dissipation requirements of ultra-high thermal power density, the concept of micro-grooved micro-cold plate is proposed in the academic circle. The micro-groove micro-cold plate consists of a series of single-layer Composed of rectangular micro-channel arrays, the heat on the surface of the system is taken away by the continuously flowing cooling fluid in the channels. Existing research results show that narrower channels, that is, smaller hydraulic diameters and larger channel aspect ratios can enhance the heat transfer performance of traditional rectangular microchannels, but at the same time lead to greater hydraulic pressure loss with greater power cons...
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IPC IPC(8): H05K7/20
CPCH05K7/20254H05K7/20272
Inventor 刘桂雄罗德章
Owner SOUTH CHINA UNIV OF TECH