Motor

The invention provides a motor (100), which comprises a shell (10) and a fan (30), wherein the shell (10) is internally provided with an inner cavity (40) which mainly extends along an axial direction (x) of the motor (100); and the fan (30) is arranged at a first end (110) of the inner cavity (40) and is communicated with the inner cavity (40), a second end (120), which is arranged opposite to the fan, of the inner cavity (40) is closed, a circumferential wall (18) of the shell (10) is provided with an opening structure (60), and the opening structure (60) is communicated with a fluid of the inner cavity (40). 本发明提供了种电机(100)，其包括：壳体(10)，其中在所述壳体(10)中形成主要沿所述电机(100)的轴向(x)延伸的内腔(40)；风扇(30)，其设置在所述内腔(40)的第端(110)，并与所述内腔(40)流体连通，其中所述内腔(40)的与所述风扇对置的第二端(120)被封闭，以及在所述壳体(10)的周壁(18)上设有开口结构(60)，其与所述内腔(40)流体连通。