Noise reduction of blower fan (freezer compartment cooler)
On 2014-05-01 14:38:05
It is used to decelerate the three-phase fan motor. Although it was a satisfactory result for the purpose of alleviating bass wind noise as it leaked out of the prefabricated refrigerator (in order to reduce wind noise), the interior noises are reduced as unique inverter noise emanates from the motor itself in the cabinet There was nothing to be done. However, since this inverter noise has a lot of treble components, it does not echo outdoors (although it is not very bad for humans in the cabinet), the objective of reducing the objective "Noise echoing outdoors with bass" of the present time was achieved . Although I expected to have "noise suppressed" in the catalog, I would like to compare it sensibly with another product I used before, but it is a question whether this is also a good one. It seems to emit Keen and noise quite ordinarily.