外接式硬碟曾是最簡單方便的儲存方式，但已是上個世代的產品。因應21世紀全新的數位生活型態，網路連接儲存裝置(NAS)因而誕生，可輕易跨平台存取，只需要連上網路，電腦、手機、平板皆可隨時隨地抓取NAS裡的資料，方便、安全、快速。此產品漸漸為家庭所接受，故本論文選擇以適合家庭用的小型NAS進行研究設計。 本論文採用某公司之設計雛型，其中NAS裝置選擇兩個硬碟且與風扇垂直擺放的方式，風扇在上方，但是上方無開孔能進出風，由於目前市場少有此排列，在使用者正常使用考量下，模擬出原設計熱分布情形，進而討論潛在風險，並從中改善設計，首先先就不同鰭片厚度及間距討論，但其結果差異不大，再者改善內部機器結構(機構)設計使流道順暢，已大大改善原始設計，再以改善過後的內部機構及流道探討側邊不同位置的開孔。 從不同的改善設計找出降低潛在風險的部分。過程中以Pro-E進行3D模型建立，並且以ANSYS分析軟體進行驗證，最後找出最佳設計。 ;External hard drives have been the easiest and most convenient way for storing data, but they are the products of the last generation. In response to the new digital lifestyle in the 21st century, the Network Attached Storage (NAS) was born, which can be easily accessed across platforms. It only needs to connect to the Internet. Computers, mobile phones, and tablets can capture the data in the NAS anytime and anywhere. It is convenient, safe, fast and gradually accepted by the family. This research chooses to study the design of a small NAS suitable for family. This research adopted a specific design prototype. The NAS consists of two hard disks, a main CPU board, and a wifi board. The fan is on the top and placed horizontally. But there is no opening at the top. Two hard disks and board of NAS are placed vertically under the fan. Such arrangement is not commonly chosen in the market. Under the consideration of normal use, this research simulated heat distribution of the original design, discuss the potential risks, and improve the design. The new design makes the flow path smooth, and greatly reduce the temperature of the NAS.
