Heat pipe

Abstract

The invention provides a heat pipe. The heat pipe comprises a pipe casing, a liquid absorbing core and an elastic layer; the pipe casing forms into a sealing chamber and comprises an evaporation end and a condensing end; the liquid absorbing core is tightly adhered to the internal surface of the pipe casing; at least a gap is formed between the external side of the liquid absorbing core portion which is arranged inside the evaporation end and the pipe casing; the elastic layer tightly coats the external side of the liquid absorbing core to block condensing liquid to penetrate the gap; the liquid absorbing core is driven to recover when the condensing liquid is condensed.

Description

technical field [0001] The invention relates to a radiator, in particular to a heat pipe. Background technique [0002] The calculation speed of modern electronic products continues to increase, and the heat generated by them is also getting higher and higher. Therefore, the heat dissipation device composed of extruded aluminum heat sinks and fans in the past can no longer meet the needs of current calculators. Especially the current trend of electronic products is to make products smaller and smaller, but this also limits the space for heat dissipation. Under the influence of these two important factors, heat dissipation technology is facing a severe test. Therefore, it is an urgent task to develop heat pipes with higher heat conduction efficiency to effectively solve the current heat dissipation problem. [0003] A known heat pipe includes a shell and a liquid-absorbing wick, wherein the liquid-absorbing wick is disposed on the inner sidewall of the copper tube, and the s...

AI Technical Summary

Problems solved by technology

[0004] However, the heat transfer capacity of the known heat pipe is limited by the radial heat transfer capacity of the evaporator section. If the radial heat flux density of the evaporator section is too large, the circulation of the condensate in the wick may be hindered, and the heat transfer capacity is limited.

When the heat flux density in the evaporating section is too high, the liquid in the liquid-absorbing core will boil. If the bubbles generated by boiling can be smoothly discharged from the tube core, the heat transfer can be enhanced; Damaged, so that the liquid-absorbent core is partially dried up, reducing the heat transfer capacity

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