发明授权
US08231366B2 Fan, motor and air-cooled bushing comprising an internal wall, external wall and hollow portion therebetween 有权
风扇,电动机和风冷套管包括内壁,外壁和中间部分

Fan, motor and air-cooled bushing comprising an internal wall, external wall and hollow portion therebetween
摘要:
A fan includes a frame, a motor, a hub and several blades surrounding around the hub. The frame includes a motor base, and the motor is disposed on the motor base and inside of the frame. The motor includes a bushing, a bearing, a shaft and at least one silicon steel sheet. The bushing has an internal wall, an external wall, and a hollow portion disposed between the internal wall and the external wall. The bushing is molded as a single piece and is unitary in construction. The bearing is disposed within the bushing, the shaft passes through the bearing, and the hub is connected with the shaft. The silicon steel sheet is disposed around the bushing.
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