An indoor unit according to the present invention includes: an air-sending portion, which includes a casing having a rectangular air outlet and accommodating an impeller including a plurality of blades; a heat exchanger, which is configured to exchange heat with gas sent from the air-sending portion; and a guide portion, which includes an upper guide defining a passage for the gas and being arranged between an upper edge portion of the air outlet and an upper end portion of the heat exchanger and a lower guide defining a passage for the gas and being arranged between a lower edge portion of the air outlet and a lower end portion of the heat exchanger, and is open at side regions of the guide portion.

An indoor unit according to the present invention includes: an air-sending portion, which includes a casing having a rectangular air outlet and accommodating an impeller including a plurality of blades; a heat exchanger, which is configured to exchange heat with gas sent from the air-sending portion; and a guide portion, which includes an upper guide defining a passage for the gas and being arranged between an upper edge portion of the air outlet and an upper end portion of the heat exchanger and a lower guide defining a passage for the gas and being arranged between a lower edge portion of the air outlet and a lower end portion of the heat exchanger, and is open at side regions of the guide portion.

Disclosed herein is an air conditioner including a main outlet and a plurality of fine outlets provided in a main body, wherein at least one discharge guide for guiding air discharged by a blowing fan to one of the main outlet and the fine outlets is disposed in the inside of the main body to cool indoor space in various ways.

A full front blowing type air conditioner is disclosed. The disclosed full front blowing type air conditioner includes a case of which a heat exchanger is disposed in an inner side; and a blower module disposed in rear of the heat exchanger in the case, and configured to discharge a pulse jet for blowing through a front face of the case. The blowing module changes air pressure of a cavity formed between at least one pair of piezoelectric diaphragms and discharges the pulse jet to a side of the heat exchanger according to periodic deformation of the pair of piezoelectric diaphragms to opposite phases to each other.

The present invention includes a plurality of fan motors, first and second inverters for individually driving the fan motors, respectively, and one and a common control unit that performs a control arithmetic for each of the fan motors and generates an individual driving signal given to each of the inverters.

Disclosed is an air conditioner. The disclosed air conditioner comprises: a main discharge port formed in a housing so as to discharge air introduced through a first inlet; a first guide discharge port configured to discharge a portion of air introduced through a second inlet such that the portion of the air introduced through the second inlet is mixed with the air discharged from the main discharge port; a second guide discharge port configured to discharge another portion of the air introduced through the second inlet such that the another portion of the air introduced through the second inlet is mixed with the air discharged from the main discharge port; and a distribution device configured to adjust the flow rate of the air discharged through the first guide discharge port and the second guide discharge port.

Disclosed is an air conditioner. The disclosed air conditioner comprises: a main discharge port formed in a housing so as to discharge air introduced through a first inlet; a first guide discharge port configured to discharge a portion of air introduced through a second inlet such that the portion of the air introduced through the second inlet is mixed with the air discharged from the main discharge port; a second guide discharge port configured to discharge another portion of the air introduced through the second inlet such that the another portion of the air introduced through the second inlet is mixed with the air discharged from the main discharge port; and a distribution device configured to adjust the flow rate of the air discharged through the first guide discharge port and the second guide discharge port.

An air conditioner includes a main unit having an enclosure defining an air outlet. The enclosure contains a heat exchanger generating a cool air or a warm air forming airflow running out of the air outlet. A pair of fan units are disposed on the opposite sides of the air outlet. The fan units are configured to suck a room air and to blow the room air. The airflow of the room air can be utilized to control the direction and/or movement of the airflow of the cool air or the warm air. The cool air or the warm air can be conveyed to desired locations.

A breezeless structure and an air conditioner are provided. The breezeless structure has an air dispersing structure, which has a stationary blade assembly and a rotating member spaced apart from each other in an air-flowing direction. The rotating member is rotatable relative to the stationary blade assembly. The stationary blade assembly has a plurality of stationary blades spaced apart from each other in a circumferential direction of the stationary blade assembly. The rotating member has a plurality of rotating blades spaced apart from each other in a circumferential direction of the rotating member. Each rotating blade is obliquely disposed to allow air to flow on opposite side walls of the rotating blade. Alternatively or additionally, each stationary blade is obliquely disposed to allow air to flow on opposite side walls of the stationary blade.

A breezeless structure and an air conditioner are provided. The breezeless structure has an air dispersing structure, which has a stationary blade assembly and a rotating member spaced apart from each other in an air-flowing direction. The rotating member is rotatable relative to the stationary blade assembly. The stationary blade assembly has a plurality of stationary blades spaced apart from each other in a circumferential direction of the stationary blade assembly. The rotating member has a plurality of rotating blades spaced apart from each other in a circumferential direction of the rotating member. Each rotating blade is obliquely disposed to allow air to flow on opposite side walls of the rotating blade. Alternatively or additionally, each stationary blade is obliquely disposed to allow air to flow on opposite side walls of the stationary blade.