A microchannel cold plate structure with reverse dredging function

Abstract

A microchannel cold plate structure with a reverse dredging function, comprising an upper cover plate and a lower filter plate, the upper surface of the upper cover plate is connected to a heat source, the lower surface of the upper cover plate is connected to the upper surface of the lower filter plate; the lower filter plate The plate is provided with a flow channel inlet and a flow channel outlet. The flow channel inlet is connected to the first-stage filter flow channel inlet through the main channel of the filter plate and more than two stages in sequence, and the last-stage filter flow channel outlet is connected through the return flow channel of the filter plate and The outlet of the flow channel is connected; the inlet of the flow channel and the outlet of the flow channel are through holes through the lower filter plate, and the filter channels of all levels are located on the upper surface of the lower filter plate, and each level of filter flow channel includes different numbers of filter units; it can be used without adding Under the condition of the external force field, the particles of different shapes and sizes are separated only by the structure of the internal flow channel of the cold plate, so as to achieve the filtering effect, which has the advantages of small mass and compact structure.

Description

technical field [0001] The invention belongs to the technical field of foreign object blocking prevention for liquid cooling heat dissipation systems of electronic equipment, and in particular relates to a microchannel cold plate structure with a reverse dredging function. Background technique [0002] With the continuous development of microelectronic packaging technology, electronic equipment is becoming more and more miniaturized, the packaging density of electronic components in the equipment continues to increase, and the heat flux density also increases accordingly, and the problem of heat dissipation is becoming increasingly prominent. However, the reliability of electronic products is very sensitive to temperature changes, and the failure rate will increase with the increase of temperature. Temperature has become an important factor affecting the reliability indicators of electronic devices and is one of the key issues restricting the performance of electronic devices...

AI Technical Summary

Problems solved by technology

At present, the most commonly used filtering method is filter screen filtration, but the filtrate filtered through the filter screen still has foreign particles that can cause blockage of the microchannel cold plate

In addition to filtering with a filter, it is very effective to control the movement of particles by adding sound, light, magnetism, electricity and other external force fields, and has a high precision for particle manipulation, but the particles under the action of external force fields are often It takes a long enough action time to produce a significant orbital deviation and then produce a sorting effect. The additional external force field generation equipment required by this method restricts the development of the entire airborne phased array radar cooling system.

Images