Noise abatement for appliance

D - Textiles – Paper – 06 – F

Patent

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Details

D06F 39/00 (2006.01) A47L 15/42 (2006.01) D06F 39/12 (2006.01) F25D 23/00 (2006.01) H02K 5/24 (2006.01)

Patent

CA 2306115

Apparatus for reducing noise emitted from an appliance having a cabinet that supports at least one component that emits at least one acoustic pressure wave therefrom. In a preferred form, the apparatus comprises at least one diffuser having at least one deflection surface. The diffuser is coupled to the cabinet and positioned relative to the one component such that the acoustic pressure wave emitted from the component is deflected by the one deflection surface in a predetermined direction. The diffuser can be used to deflect acoustic pressure waves such that they collide with each other. The apparatus may further include at least one absorber. The diffuser is strategically located to deflect acoustic pressure waves being emitted from the component into the absorber to reduce the noise emitted from the appliance.

L'invention porte sur un dispositif permettant de réduire le bruit émis par un appareil ménager (10,100) et comportant une enceinte (12, 120) renfermant au moins un élément émettant au moins une onde sonore. Dans sa forme préférée, le dispositif comporte au moins un diffuseur (70, 150, 170) muni d'au moins une surface de déflexion, solidaire de l'enceinte et placé par rapport à l'élément de manière à ce que l'onde sonore qu'il émet soit défléchie dans une direction donnée par la surface de déflexion. Le diffuseur peut défléchir les ondes sonores pour qu'elles s'entre-choquent. Le dispositif peut en outre comporter au moins un absorbeur (80, 145), le diffuseur étant placé de manière à défléchir les ondes sonores sur l'absorbeur et réduire le bruit émis par l'appareil ménager.

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