The invention discloses a tree-shaped
heat pipe, comprising a
heat pipe shell, a capillary wick, a
coolant and a plurality of tree-shaped structures; the
heat pipe shell is a sealed shell, the tree-shaped structure sequentially passes through the
evaporation section and the condensation section, and is attached to the inner wall of the heat
pipe shell; a capillary wick and a
coolant are provided in the
evaporation section, the capillary wick is connected to the tree-shaped structure, and in the condensation section, except for the area occupied by the tree-shaped structure, other areas are super-liquid-repellent surface areas, and the tree-shaped structure is a super-liquid-loving surface area. The present invention uses a tree-shaped structure to coordinate super-liquid-repellent and super-liquid-loving interlaced mode, and utilizes a super-liquid-repellent surface to accelerate the
cooling speed, and the super-liquid-loving surface attracts the liquid droplets condensed on the super-liquid-repellent surface, so that the tree-shaped heat
pipe can realize the rapid transmission of the
coolant, and effectively prevent the liquid droplets from affecting the heat exchange of the super-liquid-repellent surface. At the same time, the tree-shaped structure can reduce the flow resistance of the coolant on the super-liquid-loving surface, so that the coolant can quickly flow back to the heat
pipe evaporation section, and improve the
critical heat flux density of the heat pipe.