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工業技術研究院

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技術名稱: 外轉子式馬達

技術簡介

永磁電機因具有結構簡單、運行可靠、體積小、損耗小與效率高的優點,且電機的形 狀和尺寸可以容易變化等優點,因而應用範圍極廣,幾乎遍及航太、國防、工農業、製造與住商民生的各領域。然而,過去使用在永磁無刷馬達的架構上,因為永久磁石的使用與控制轉定子作用間距的設計精度考量,使三件式轉子殼體為主流,包含上蓋、中圈圓筒與下蓋。但三件式轉子組合的架構卻因零件數目增加而有可能造成整體組合公差的增加,;雖然永磁馬達可提升效能,但另一方面反而降低馬達的使用可靠度。同時,在過去的三件式架構常因為以較長螺栓穿越中圈圓筒的設計,容易導致上下蓋的軸承孔的同軸度公差增加,再次降低使用可靠度;且零件數多組裝亦繁瑣,進而增加製造成本。

Abstract

Because of its advantages of simple structure, reliable operation, small size, small loss and high efficiency, and the shape and size of the motor can be easily changed, etc., the permanent magnet motor has a very wide range of applications, almost all over the aerospace, defense, agriculture, Manufacturing and livelihood in all areas of business people. However, in the past, the three-piece rotor housing was the mainstream in the architecture of permanent magnet brushless motors due to the design accuracy of the permanent magnets and the control of the stator clearance. The three-piece rotor housing consisted of an upper cover, a middle cover cylinder and a lower cover . However, the architecture of the three-piece rotor assembly may increase the overall assembly tolerance due to the increased number of parts. Although the permanent magnet motor can improve the performance, on the other hand, the reliability of the motor is reduced. In the meantime, in the past, the three-piece structure often leads to the coaxiality tolerance of the bearing holes of the upper and lower covers being increased because of the design of the longer bolts passing through the middle-diameter cylinder, thereby lowering the reliability of use again. Moreover, the assembly of parts is complicated, Thus increasing the manufacturing cost.

技術規格

一種外轉子式馬達包含有轉子、心軸及定子。轉子包含有第一殼體、第二殼體及一磁性件組。第一殼體包含底盤、側牆部及凸緣。側牆部連接於底盤與凸緣間。凸緣具有第一接合面及位於第一接合面的第一定位結構。第二殼體具有面向第一接合面的第二接合面及位於第二接合面的第二定位結構。第二殼體組接於凸緣而與第一殼體圍繞出容置空間。第一定位結構與第二定位結構係為凹凸或凸凹相匹配的結構。磁性件組設置於側牆部之內壁面。心軸可樞轉地穿設第一、第二殼體。定子位於容置空間,且更包含有固設於心軸的定子架及設置於定子架的一繞線組。

Technical Specification

An outer rotor type motor includes a rotor, a shaft and a stator. The rotor includes a first shell, a second shell and a magnet set. The first shell includes a bottom part, side wall part and a flange. The side wall part is connected between the bottom part and the flange. The flange has a first connecting surface and a plurality of first positioning structures located on the first connecting surface. The second shell has a second connecting surface facing the first connecting surface and a plurality of second positioning structures located on the second connecting surface. The second shell is mounted to the flange so that the first shell and the second shell together form an accommodating space. The first positioning structures and the second positioning structures are protruding and depressed parts, and the shape of the protruding part matches the shape of the depressed part. The magnet elements are disposed on an inner wall of the side wall part. The shaft pivotally penetrates the first shell and the second shell. The stator is located in the accommodating space, and includes a stator frame fixed to the shaft and a coil set disposed on the stator frame.

技術特色

本創作係一種改善吊扇用外轉子永磁電機的結構設計,整體架構配置係包括一定子部、第一轉子部與一第二轉子部,該定子部可連接一固定部11(亦或稱為心軸)作為固定支撐,且在該定子部裝配繞線繞組。組裝完成後和先前技藝比較,減少了使用連接上和下轉子部的連接部件),藉此可有三項好處:1)降低零件數目與加工複雜度;2)減少組裝複雜度與降低組裝公差;3)減少發生轉動不平衡與動平衡校正之困難度。

應用範圍

航太、國防、工農業、製造與住商民生冷凍空調,風機,壓縮機相關業者

接受技術者具備基礎建議(設備)

航太、國防、工農業、製造與住商民生風機、馬達產品生產、製造、檢測與維修相關設備。

接受技術者具備基礎建議(專業)

具備航太、國防、工農業、製造與住商民生風機、馬達產品生產、製造、檢測與維修設備領域研發工程人員與銷售業務。

技術分類 01 綠能環境

聯絡資訊

聯絡人:余守龍 節能設備技術組

電話:03-5916257 或 Email:fishsolong@itri.org.tw

客服專線:+886-800-45-8899

傳真:none

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