Multi-section hinge type flexible heat pipe

Abstract

The invention discloses a flexible heat pipe. The flexible heat pipe comprises an evaporation section, a condensation section, a heat insulation section; the heat insulation section is internally provided with a wick, one end of the heat insulation section is connected with the evaporation section, the other end of the heat insulation section is connected with the condensation section, the heat insulation section comprises a plurality of rigid sections and a plurality of butt joint sections, the adjacent rigid sections are connected through the butt joint sections, and the butt joint sectionsare made of flexible polymer materials. According to the multi-section hinge type flexible heat pipe, the adjacent rigid sections in the flexible heat pipe are connected through the butt joint sections, due to the fact that the butt joint sections are made of the flexible polymer materials, the adjacent rigid sections are approximately hinged, and large bending deformation of the whole heat pipe is achieved through bending deformation superposition of the multiple rigid sections; due to the fact that the rigid sections at the two ends of the butt joint sections can provide enough supporting constraint, therefore, the butt joint sections can be prevented from collapsing and being damaged and blocking an internal channel, the total use amount of the flexible polymer is small, the total thermal resistance of a flexible outer shell and the volume change of the internal space during deformation are effectively reduced, and the comprehensive thermodynamic property of the flexible heat pipe is improved.

Description

technical field [0001] The invention relates to the technical field of heat pipes, in particular to a multi-segment hinged flexible heat pipe. Background technique [0002] Traditional rigid heat pipes cannot be bent freely, and the heat transfer efficiency may drop sharply after bending, and it is difficult to perfectly fit heat sources with complex surface shapes. Complexity of space installation. Due to its greater flexibility, flexible heat pipes can be flexibly installed in complex spaces and can move in a large range with the position of the heat source. Existing flexible heat pipes are mainly non-articulated all-polymer flexible flat heat pipes and single-articulated metal-polymer material composite flexible heat pipes. The hingeless flexible heat pipe has a large thermal resistance because the entire shell is made of polymer material. Although the thermal resistance of the single hinged flexible heat pipe is small, it can only realize simple bending movement at th...

AI Technical Summary

Problems solved by technology

Although the thermal resistance of the single hinged flexible heat pipe is small, it can only realize simple bending movement at the joints due to only a single link structure, and cannot adapt to the complex three-dimensional space installation requirements

In addition, the excessively long polymer insulation shell still increases the thermal resistance of the heat pipe to a certain extent, and the lack of constraints in the flexible part during the deformation process easily causes the internal space volume of the heat pipe to change too much, resulting in unstable performance

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