The fan frame is provided with an outer frame, the inner side of the outer frame forms a hollow motor shell in an integrative molding way.
该扇框具有一个外框部，该外框部内侧以一体成型方式 形成中空的一个马达壳；
Backwards from the dust collecting mouth, the middle position of the shell is provided with the fan section which is internally provided with the pneumatic motor and vanes.
从集尘口向后，在壳体的中部位置是风机段，风机段内设置有气动马达和风叶。
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