因COVID-19疫情影響，與醫療產業相關能有效隔離汙染源的泵浦及呼吸器被格外重視。傳統離心式泵浦是由馬達與水泵扇葉組合而成，其中馬達與水泵扇葉係為分開設計，中間連接的傳動機構需額外加裝軸封，無法有效隔離汙染源，且流體壓縮機構與馬達間的耦合也會有機械損失，因此功率密度無法有效提升。本研究是以軸向永磁磁通切換式馬達為基礎，將磁鐵與繞線設置於馬達定子，轉子是單純由軟磁材料組成，結構較強健，且適合將轉子設計為水泵扇葉之翼型，能省去轉、定子間的傳動機構，有效防止內部液體洩露，達成一體式設計。本文利用有限元素軟體(JMAG、SOLIDWORKS)分析電磁場及流場，並完成加工製造，最後上動力計量測驗證其可行性。

Due to the impact of the COVID-19 epidemic, pumps and respirators related to the medical industry that can effectively isolate the source of pollution have been received extra attentions. The traditional centrifugal pump is a combination of a motor and a pump’s impeller, which the transmission mechanism connected in between needs an additional shaft seal that cannot effectively isolate the source of pollution. Meanwhile, the coupling between the fluid compression mechanism and the motor will also have mechanical losses, so the power density cannot be effectively improved. The integrated motor designed in this paper is based on axial flux-switching permanent magnet motor (AFSPM) which the magnets and windings are allocated on the stator. The rotor of AFSPM is made of soft magnetic material to endow it a robust structure that is suitable for combining with the pump’s impeller. The transmission mechanism between the rotor and the stator can be omitted, and thus liquid leakage can be effectively prevented and an integrated design can be realized. This paper first introduces the design method of the AFSPM, and combines the impeller design with AFSPM to achieve the integrated motor. Then the finite element software is employed to analyze the electromagnetic field and flow field, and the integrated motor is fabricated by metal processing and manufacturing. Finally, the feasibility of the proposed design is verified by the dynamometer.

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