Noise reduction impeller and range hood applying same
A range hood, noise reduction technology, applied in the application, removal of oil fume, household stoves, etc., to achieve the effect of eliminating flow noise
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[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0020] Such as figure 1 As shown, the noise reduction impeller 5 in this embodiment includes a middle plate 51 and blades installed on the middle plate, wherein the blades include front blades 52 arranged on the front side of the middle plate and rear blades 52 arranged on the rear side of the middle plate. For the side blades 53, the front blades 52 are shorter and the rear blades 53 are longer, and the front blades 52 and the rear blades 53 can adopt an integral structure or a split structure. The inner circumference of the front blade 52 is covered with a mesh cover 54 . The net cover 54 can isolate the flow field of the air inside the impeller, thereby having the effect of reducing noise.
[0021] Such as figure 2 As shown, the outer ring of the front blade 52 is covered with a mesh cover 54, and the rest of the structures are the same...
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