Patent ID: 9318091
Filing Date: 2016-04-19
CPC Classification: F24F,G10K

Claim Text:
1. An air conditioner to be used by being mounted on an indoor wall surface, comprising: a casing; an inlet provided to the casing, for introducing air in a room; an outlet provided to the casing, for delivering conditioned air, which is obtained by conditioning air introduced from the inlet, to the room; a blower for moving air from the inlet to the outlet; a blower passage communicating between the inlet and the outlet; a pivotable air flow guide panel provided in a vicinity of the outlet vertical louvers dividing the outlet into sections; and a plurality of speakers arranged at least one in each of the sections, each section being between two adjacent vertical louvers, wherein the air flow guide panel and the vertical louvers are operable to form a duct-like outlet passage serving as a one-dimensional sound field of sound from the speakers outside the outlet, and the speakers radiate a sound wave for canceling out operation noise including blower sound of the blower toward the duct-like outlet passage, wherein the each section have a width equal to or smaller than one-half of a wavelength of the sound wave radiated from the speakers.