公开(公告)号：US20050089411A1

公开(公告)日：2005-04-28

申请号：US10733108

申请日：2003-12-10

申请人： Chii-Ron Kuo ,  Chia-Yang Chang ,  Tzeng Wey

发明人： Chii-Ron Kuo ,  Chia-Yang Chang ,  Tzeng Wey

IPC分类号： F04D25/06 ,  F04B17/00

CPC分类号： F04D25/066

摘要： An axial flow type cooling fan, comprising an upper casing, a lower casing, a rotor assembly, and a driving unit. The lower casing and the upper casing enclose an inner space. The rotor assembly is housed in the inner space and performs a rotational movement. The rotor assembly further comprises a plurality of blades, attached to a central shaft and having a peripheral ring, from which a peripheral rim extends outward. The driving unit has electric coils on the upper or lower casings and permanent magnets on the peripheral rim, causing the rotational movement of said rotor assembly. By the arrangement of these structural parts, an increased area of air flow and consequently increased air flow are attained, while drag and noise are reduced.

摘要翻译： 轴流式冷却风扇，包括上壳体，下壳体，转子组件和驱动单元。 下壳体和上壳体包围内部空间。 转子组件容纳在内部空间中并进行旋转运动。 转子组件还包括多个叶片，其附接到中心轴并且具有外围环，外围边缘从该外围环向外延伸。 驱动单元在上壳体或下壳体上具有电线圈，并且在周边边缘上具有永磁体，导致所述转子组件的旋转运动。 通过这些结构部件的布置，获得了增加的空气流量面积并因此增加了空气流量，同时减小了阻力和噪音。