Design method of soaking plate wick structure with enhanced capillary action

Abstract

The invention discloses a design method of a soaking plate wick structure with enhanced capillary action. Based on a Poiseuille flow hypothesis, similarity between ideal Poiseuille flow and steady-state heat conduction is used, fan-shaped parts of a steady-state heat conduction problem are optimized as a topological optimized first-order configuration of a condensation end of a soaking plate, andthe micro-channel layout in a fan-shaped area is optimized by utilizing a plant vein bifurcation rule to obtain a wick structure. According to the design method, the distribution of channels in the wick of the soaking plate is designed by simulating the distribution of the leaf veins of plant leaves, the capillary force is guaranteed, the flow velocity is high, and the obtained wick structure hassuperior thermal performance.

Description

technical field [0001] The invention relates to the technical field of layout design of flow passages in a vapor chamber liquid-absorbing core, in particular to a structure design method for a vapor chamber liquid-absorbing core that strengthens capillary action. Background technique [0002] With the continuous development of electronic equipment in the direction of high integration and miniaturization, if there is no efficient and fast heat dissipation method, the electronic equipment will be in a relatively high temperature state during operation, which will cause the performance and reliability of the equipment to decrease . A vapor chamber is a widely used heat sink that transfers heat from electronic equipment to a heat sink through the phase change of the working fluid inside its cavity. The performance of the vapor chamber will directly affect the surface temperature of the equipment when it is working, and the performance of the vapor chamber depends on the structu...

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Problems solved by technology

[0003] The design of the traditional vapor chamber mainly relies on experience or simply combining flow channels. Most of the internal micro-channels are rectangular flow channels and serpentine flow channels. Although this type of flow channel is simple in design and easy to manufacture, However, with the development of electronic equipment and the continuous improvement of its thermal performance requirements for radiators, these traditional flow channels can no longer meet the current requirements for enhanced heat transfer.

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