隨著全球暖化問題日益受到關注，各國近年來積極推動以潔淨能源取代傳統燃油車，以降低二氧化碳排放。其中，電動機車在亞洲都市地區擁有相當高的市占率，而為了進一步減少能源消耗，提升電機的功率密度已成為主要的技術發展方向。目前大多數電動機車採用徑向磁通永磁電機，但該類型電機受限於結構及輪胎尺寸，導致整體性能表現受限。為克服此瓶頸，軸向磁通永磁電機因具備薄型結構與高功率密度等潛力逐漸受到關注。然而，此類電機尚未廣泛應用的主要原因在於其定子鐵芯製造過程複雜且成本較高，使得初期驗證門檻較高，進而影響市場化過程。
本研究針對上述挑戰，提出一種新型定子設計方法，利用金屬積層製造技術結合矽鋼片技術製作分段式定子鐵芯。該設計不僅可快速製作原型樣品，亦保留定子靴部結構，有效擴大磁通通過的面積，進而提升氣隙磁通的利用率與整體電機性能。最終透過實體樣機製作與測試驗證，證實本設計具備可行性與應用潛力。

With growing concerns about global warming, many countries are actively promoting clean-energy vehicles to replace those powered by traditional fossil fuels, aiming to reduce carbon dioxide emissions. In urban areas across Asia, electric scooters have emerged as a dominant segment in this transition. To further reduce energy consumption, increasing the power density of electric motors has become a key focus of technological advancement. Most electric scooters currently employ radial flux permanent magnet (RFPM) machines, whose performance is often limited by structural constraints and tire dimensions. To address these challenges, axial flux permanent magnet (AFPM) machines have garnered increasing attention for their compact form and high power density potential. However, their broader adoption has been hindered by the complexity and high cost of stator core manufacturing, which slows early-stage prototyping and delays commercialization. This study proposes a novel stator design that integrates metal additive manufacturing with silicon steel lamination to produce a segmented stator core. This approach enables rapid prototyping while preserving the stator tooth geometry, effectively expanding the flux passage area, improving air-gap flux utilization, and enhancing overall motor performance. The feasibility and advantages of the proposed design are validated through the fabrication and testing of a physical prototype.

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