An air conditioner unit may include a housing, an outdoor heat exchanger assembly, an indoor heat exchanger assembly, a compressor, and a sterilization light assembly. The housing may define an indoor portion and an outdoor portion. The housing may further define an exhaust outlet downstream from the indoor portion to exhaust air therefrom. The outdoor heat exchanger assembly may be disposed in the outdoor portion and include an outdoor heat exchanger. The indoor heat exchanger assembly may be disposed in the indoor portion and include an indoor heat exchanger and an indoor fan. The compressor may be in fluid communication with the outdoor heat exchanger and the indoor heat exchanger to circulate a refrigerant between the outdoor heat exchanger and the indoor heat exchanger. The sterilization light assembly may be disposed within the indoor portion and directed at the indoor fan to transmit an ultraviolet light emission thereto.

An air conditioner unit may include a housing, an outdoor heat exchanger assembly, an indoor heat exchanger assembly, a compressor, and a sterilization light assembly. The housing may define an indoor portion and an outdoor portion. The housing may further define an exhaust outlet downstream from the indoor portion to exhaust air therefrom. The outdoor heat exchanger assembly may be disposed in the outdoor portion and include an outdoor heat exchanger. The indoor heat exchanger assembly may be disposed in the indoor portion and include an indoor heat exchanger and an indoor fan. The compressor may be in fluid communication with the outdoor heat exchanger and the indoor heat exchanger to circulate a refrigerant between the outdoor heat exchanger and the indoor heat exchanger. The sterilization light assembly may be disposed within the indoor portion and directed at the indoor fan to transmit an ultraviolet light emission thereto.

Disclosed herein is an indoor unit which can easily create a plurality of areas having different temperatures in a single indoor space, with even a single indoor unit. An indoor space is divided into a plurality of areas. An airflow direction adjusting flap provided at a blow-out opening is capable guiding blown air to each of the areas. An amount of heat to be processed for each of the plurality of areas by the air blown out of the blow-out opening is adjusted so that temperatures of at least two of the areas are different from each other.

Disclosed herein is an indoor unit which can easily create a plurality of areas having different temperatures in a single indoor space, with even a single indoor unit. An indoor space is divided into a plurality of areas. An airflow direction adjusting flap provided at a blow-out opening is capable guiding blown air to each of the areas. An amount of heat to be processed for each of the plurality of areas by the air blown out of the blow-out opening is adjusted so that temperatures of at least two of the areas are different from each other.

A heat exchanger in which a refrigerant that flows in from a first inlet and a second inlet exchanges heat with air flow and flows out from an outlet includes: an upwind heat-exchanging unit; a downwind heat-exchanging unit that includes the second inlet and is disposed beside the upwind heat-exchanging unit on a downwind side of the upwind heat-exchanging unit; and a flow path formation portion that includes a refrigerant flow path between the upwind heat-exchanging unit and the downwind heat-exchanging unit.

A heat exchanger in which a refrigerant that flows in from a first inlet and a second inlet exchanges heat with air flow and flows out from an outlet includes: an upwind heat-exchanging unit; a downwind heat-exchanging unit that includes the second inlet and is disposed beside the upwind heat-exchanging unit on a downwind side of the upwind heat-exchanging unit; and a flow path formation portion that includes a refrigerant flow path between the upwind heat-exchanging unit and the downwind heat-exchanging unit.

A ceiling-embedded air conditioner includes: a ceiling-embedded casing body; a turbo fan disposed inside the casing body; a heat exchanger disposed inside the casing body on an outer peripheral side of the turbo fan; and an electrical equipment box disposed along a part of the heat exchanger at the upstream side of a ventilation direction. The casing body has a square shape with first to fourth side plates. The heat exchanger has first to fourth heat exchange portions bent along the first to fourth side plates respectively. An end portion of the first heat exchange portion and an end portion of the fourth heat exchange portion are disposed at a corner for tube connection out of the four corners of the casing body. The electrical equipment box is disposed to extend from the corner for tube connection toward the first heat exchange portion and the fourth heat exchange portion.

A ceiling-embedded air conditioner includes: a ceiling-embedded casing body; a turbo fan disposed inside the casing body; a heat exchanger disposed inside the casing body on an outer peripheral side of the turbo fan; and an electrical equipment box disposed along a part of the heat exchanger at the upstream side of a ventilation direction. The casing body has a square shape with first to fourth side plates. The heat exchanger has first to fourth heat exchange portions bent along the first to fourth side plates respectively. An end portion of the first heat exchange portion and an end portion of the fourth heat exchange portion are disposed at a corner for tube connection out of the four corners of the casing body. The electrical equipment box is disposed to extend from the corner for tube connection toward the first heat exchange portion and the fourth heat exchange portion.

An air treatment device includes: a casing having an inlet through which air is drawn, and an outlet out of which the air drawn through the inlet is blown; a blade configured to adjust a direction of the air blown out of the outlet; and a generator configured to generate an antimicrobial element that sanitizes the blade. The blade has a first surface, and a second surface opposite to the first surface. The blade is shiftable between a first position in which the antimicrobial element is provided to the first surface and a second position in which the antimicrobial element is provided to the second surface.

An air treatment device includes: a casing having an inlet through which air is drawn, and an outlet out of which the air drawn through the inlet is blown; a blade configured to adjust a direction of the air blown out of the outlet; and a generator configured to generate an antimicrobial element that sanitizes the blade. The blade has a first surface, and a second surface opposite to the first surface. The blade is shiftable between a first position in which the antimicrobial element is provided to the first surface and a second position in which the antimicrobial element is provided to the second surface.