Silencer for drying appliance and silent hair dryer

Details Silencer for drying appliance and silent hair dryer Silencer for drying appliance and silent hair dryer

A - Human Necessities

45

D

A45D 20/12 (2006.01)

Patent

CA 2712924

The present invention relates to a silent hair dryer (3) comprising at least one casing (30) comprising an inlet end (33) and an outlet end (31) and enclosing at least one turbine (T) sucking in air via at least one admission orifice (330) upstream of the turbine (T) and expelling it downstream via at least one outlet orifice (310), and generating determined sound frequencies, characterised in that it comprises a silencer comprising at least one chamber (10) upstream of the admission orifice (330) and comprising an inlet orifice (110) for aspiration of air upstream of the chamber (10), the diameter of the chamber (10) being greater than the diameter of the admission orifice (330) and the diameter of the inlet orifice (110), the length (L) and the diameter (Dc) of the chamber (10) being of such a size so as to define a volume tuned as a function of said determined sound frequencies.

La présente invention concerne un sèche-cheveux silencieux comportant au moins un carter (30) comprenant une extrémité d'entrée (33) et une extrémité de sortie (31 ) et renfermant au moins une turbine (T) aspirant de l'air par au moins un orifice (330) d'admission en amont de la turbine (T) et l'expulsant en aval par au moins un orifice (310) de sortie, en générant des fréquences sonores déterminées, caractérisé en ce qu'il comporte un silencieux comprenant au moins une chambre (10) en amont de l'orifice (330) d'admission et comportant un orifice (110) d'entrée pour l'aspiration d'air en amont de la chambre (10), le diamètre de la chambre (10) étant supérieur au diamètre l'orifice (330) d'admission et au diamètre de l'orifice (110) d'entrée, la longueur (L) et le diamètre (Dc) de la chambre (10) étant dimensionnés en fonction desdites fréquences sonores déterminées.

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