电风扇在使用中发生了故障,其原因不外来自制造质量差、使用不当、保养不良、风叶变形及自然老化等。故障的表现形式较为复杂,但总的来说可分属于机械故障与电气故障。一般与通电无关的故障,如轴承阻滞、转动不畅、风叶变形、机身振颤及机械传动机构失灵等都属机械故障;随电源关断而消失的故 Fan in the use of the fault occurred, the reason except from poor manufacturing quality, improper use, poor maintenance, blade deformation and natural aging. The manifestation of the fault is more complex, but in general can be classified as mechanical fault and electrical fault. Generally unrelated to the power failure, such as bearing block, poor rotation, blade deformation, body vibration and mechanical transmission failure are mechanical failures; with the power off and disappear