Liquid Cold Plates for Electronic Component Cooling

Abstract

A liquid cold plate used for cooling electronic components, including a base plate and a cover plate. There are multiple parallel straight slots on the base plate, and the adjacent straight slots are connected end to end. The arc transition between the grooves; the straight grooves on the base plate, the connecting grooves and the cover plate form a flow channel for the cooling liquid to flow through, and a first groove is opened on the bottom wall of each straight groove, and the width of the first groove is It accounts for 60% to 80% of the width of the runner. The invention has the advantages of being able to take into account both the temperature rise of the liquid cold plate and the drop of cooling hydraulic pressure, and realize the simultaneous and substantial reduction of the temperature rise of the liquid cold plate and the drop of cooling hydraulic pressure.

Description

technical field [0001] The invention relates to a heat exchanger device suitable for being installed on electronic equipment and a generator, in particular to a liquid cold plate. technical background [0002] The liquid cold plate has excellent heat dissipation performance. It is a device with medium and high power density. The liquid cold plate can effectively take away the heat dissipation in power devices, printed circuit board assemblies or extension equipment. The characteristics of the liquid cold plate cooling system are: (1) the temperature gradient on the cold plate is small, the heat distribution is uniform, and the large concentrated heat load can be taken away; (2) due to the indirect cooling method, the electronic components can not Direct contact with coolant reduces various pollution and improves work reliability; (3) Compared with direct cooling, the loss of coolant is less, and it is also convenient to use more effective coolant to improve cooling efficienc...

AI Technical Summary

Problems solved by technology

The disadvantage of using coiled tubes or plate fins to make flow passages (flow channels) is that: coiled tubes need to be bent from straight tubes, and a straight tube may only be made into a part of the coiled tube, so the coiled tube has Welding, there may be leaks

[0024] It can be seen from formula (3) that the temperature rise Δt of the cold plate is inversely proportional to the pressure drop ΔP, and in the heat exchanger equipment disclosed in ZL200580049517.9, the faster flow rate of the coolant in the high heat flux area will lead to an increase in the pressure drop of the fluid

Its optimization measures cannot take into account the pressure drop and temperature rise

Images