Industrial Technology Research Institute

Jin-Cherng Shyu

Ming-Jye Tsai

Che-Wei Lin

Lan-Kai Yeh

Shao-Wen Chen

The present invention relates to a method for fabricating a heat dissipating apparatus. The method provides two highly heat conductive members having structure patterns. A highly heat conductive material is coated on the structured patterns for forming a micro-structure layer. The two highly heat conductive members are assembled to form a heat dissipating apparatus having micro-structure layer. The heat dissipating apparatus comprises a main body composed of the highly heat conductive members. The main body forms an accommodating cavity, and inner surfaces of the accommodating cavity form the micro-structure layer. A working fluid is filled into the accommodating cavity for transferring heat from a heat absorbing surface to a heat dissipating surface.

Method of fabricating heat dissipating apparatus

A heat dissipating apparatus has a micro-structure layer. Two highly heat conductive members are provided, each having structured patterns. A highly heat conductive material is coated on the structured patterns by injection molding for forming a micro-structure layer. The two highly heat conductive members are assembled to form a heat dissipating apparatus having a micro-structure layer. The heat dissipating apparatus includes a main body composed of the highly heat conductive members. The main body forms an accommodating cavity, and inner surfaces of the accommodating cavity form the micro-structure layer. A working fluid is filled into the accommodating cavity for transferring heat from a heat absorbing surface to a heat dissipating surface.

Heat dissipating apparatus having micro-structure layer and method of fabricating the same

The present invention relates to a heat dissipating apparatus having micro-structure layer and method for fabricating the same. The method provides two highly heat conductive members having structure patterns. A highly heat conductive material is coated on the structured patterns by means of injection molding for forming a micro-structure layer. The two highly heat conductive members are assembled to form a heat dissipating apparatus having micro-structure layer. The heat dissipating apparatus comprises a main body composed of the highly heat conductive members. The main body forms an accommodating cavity, and inner surfaces of the accommodating cavity form the micro-structure layer. A working fluid is filled into the accommodating cavity for transferring heat from a heat absorbing surface to a heat dissipating surface.

A method for enhancing the mobility of a working fluid in a liquid/gas phase heat dissipating device improves the mobility of the working fluid therein, and further enhancing the heat dissipation capability of the heat dissipating device. The present invention coats a layer on the surface of a capillary structure inside the heat dissipating device to increase the material property on the surface and the coupling force between the working fluid and the capillary structure and decrease the contact angle between the working fluid and the capillary structure, and thus the working fluid has a higher mobility to solve the problem of the high heat flux density of the liquid/gas heat dissipating device and improve the heat dissipation effect. The present invention not only applies to the heat generating electronic components within a limited space, but also applies to other electronic components that require a constant temperature.

Method for enhancing mobility of working fluid in liquid/gas phase heat dissipating device

A heat-dissipation device adopted for a safety helmet which includes a heat-transfer unit that functions as a heat pipe, a heat-dissipation unit connecting to the heat-transfer unit, a vent formed in a front of the heat-dissipation unit that can be closed and opened alternatively by a shutter unit in order to adjust the capacity of heat-dissipation thereof, and a covering unit made of insulative materials and spreading over the heat-dissipation unit. Whereby the heat-transfer unit provides a kind of two-phase flow that is capable of conducting heat rapidly, so as to remove heat gathered in the helmet and improve the comfort level for the wearer.

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Hsinchu, Taiwan

Jin-Cherng Shyu