Flat plate heat pipe

Abstract

The invention discloses a flat plate heat pipe, which comprises a shell and a capillary structure, wherein the capillary structure is attached to the inner surface of the shell; a steam passage is enclosed by the inner surface of the shell and the surface of the capillary structure together; and the volume of the capillary structure is equal to the volume of the steam passage. Compared with the prior art, the flat plate heat pipe has the advantages that the steam passage of the flat plate heat pipe is positioned on the outer side of the capillary structure, and a working medium which is evaporated from the capillary structure enters the steam passage from one side face of the capillary structure, so that the evaporated working medium has small mutual influence and cannot form turbulent flow easily; and since the volume of the capillary structure is equal to the volume of the steam passage, the maximum heat transfer of the flat plate heat pipe is guaranteed, and the heat resistance is relatively small, and accordingly, the flat plate heat pipe has more superior performance.

Description

Technical field [0001] The invention relates to a heat pipe, in particular to a flat heat pipe. Background technique [0002] At present, heat pipes are commonly used in the industry to solve the high-density heat dissipation problem of high-speed computers, such as heat pipes, loop heat pipes, and flat heat pipes (Vapor Chamber) products. [0003] The working principle of flat heat pipes is the same as that of traditional heat pipes. Because it has a larger heat conduction area than traditional heat pipes and meets the high practical value of "light, thin, short, and small", it is widely used in electronics with larger heat dissipation surfaces. Product. [0004] The traditional flat heat pipe includes a metal shell and a continuous capillary structure evenly attached to the inner surface of the metal shell. The capillary structure includes a steam channel in it. When the flat heat pipe works, the working liquid in the capillary structure evaporates due to heat and enters the ste...

AI Technical Summary

Problems solved by technology

The working liquid entering the steam channel from all parts of the capillary structure easily interferes with each other to form turbulent flow, which reduces the flow velocity of the working liquid and reduces the heat transfer efficiency of the flat heat pipe.

Images