在電子設備各種發熱元件常用之散熱設計中，熱管散熱模組具有無噪音、不耗能、使用壽命長、熱傳遞效能高、使用不佔空間和重量輕……等優點，非常適合外形輕巧之電子設備，做為散熱裝置。

　　本文透過實驗證明，採用熱管之自製熱管散熱模組，運用於高輸出功率之交換式電源供應器中，做為功率電晶體之散熱裝置，散熱功率可達61.4W，比原設計之散熱鰭片搭配風扇使用之散熱方式，在效能上增加19.2%，可取代原設計之散熱方式。

　　從實驗結果顯示，影響熱管散熱模組效能之要因有：熱管外形、熱管使用數量和管徑大小。影響之程度，最大為使用直熱管比使用折彎之熱管，多出61.8%之效能；其次為使用2支熱管比使用1支熱管，多出26.6%之效能；最後為使用管徑8mm之熱管比使用管徑6mm之熱管，多出14.6%之效能。

　　因此，熱管散熱模組若能配合交換式電源供應器之電路設計，採用直熱管之設計，將可使熱管散熱模組發揮最大之散熱效能。

　　Among various kinds of heat-generate components, heat-pipe cooling module is one of the commonly-used designs of heat dissipation that can bring lots of advantages, including no noise, low energy consumption, long cycle life, high heat transfer efficiency, little space occupied and light weight. Therefore, heat-pipe cooling module is fit for delicate electronic equipments as heat- dissipation device.

　　This article depicts, through experiments, it proves that dissipation efficiency can reach 61.4W with heat-pipe cooling module made by heat-pipe. The dissipation efficiency increases by 19.2%, as compared with originally-designed method for heat dissipation, that is collocation of heat-sink with an electric fan. Heat-pipe cooling module can substitute original method for use as heat dissipation device of power-transistor on high-output efficiency switching power supply appliance.

　　The experiment result shows that the factors affecting efficiency of heat-pipe cooling module are pipe contour, numbers of pipes used and pipe diameters. To the extent of influence, the biggest is a straight heat-pipes has more efficiency than a bended heat pipe by 61.8%. Secondly, efficiency of two heat-pipes is higher than that of one heat-pipe by 26.6%. Last, tube dia. 8mm is 14.6% efficient more than tube dia. 6mm.

　　In conclusion, in order to achieve the greatest heat dissipation efficiency, the best design is connection of heat-pipe cooling module that uses straight heat-pipes with switching power supply circuit.

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