An air conditioner including an arc shaped discharge port formed in a cylindrical member of a housing; a main fan; an arc shaped heat exchanger between the main fan and an inner peripheral surface of the cylindrical member with respect to a radial direction of the cylindrical member; and an auxiliary fan. A discharge flow path is formed between an outer peripheral end of the heat exchanger and the inner peripheral surface of the cylindrical member. A guide flow path is formed outside the discharge flow path with respect to the radial direction of the cylindrical member. The auxiliary fan is in the discharge flow path and is configured to suck some of the air discharged through the discharge port into the guide flow path. The guide flow path returns the air sucked by the auxiliary fan to the auxiliary fan.

An air conditioner including: a housing including a cylinder portion, an inlet, and an outlet formed in a lower portion of the cylinder portion and being in a shape of an arc; a heat exchanger positioned inside the cylinder portion and being in a shape of an arc; and a plurality of blades configured to selectively open or block the outlet, wherein the plurality of blades are arranged along a circumferential direction of the outlet and configured to move back and forth in a radial direction of the outlet to open or block the outlet, and each of the plurality of blades includes a plurality of holes configured to enable, upon blocking of the outlet by the blade, air entered the inlet to be discharged to outside of the housing through the blade.

An air conditioner including a housing; a heat exchanger in the housing; an outlet; a blower to discharge air forward toward the outlet, the air having exchanged heat with the heat exchanger; and a guide panel in front of the blower, and including an inner panel coupled with the outer panel, and a suck-in flow path formed by the inner panel and the outer panel, wherein the guide panel forms the outlet with the housing to release a first portion of the air discharged by the blower outside of the housing, and the suck-in flow path sucks in a second portion of the air discharged by the blower so as to guide the first portion of the air to flow outside of the housing in a direction different than when the second portion of the air is not sucked into the suck-in flow path.

A wind direction adjustment mechanism includes: a support plate having a holding protrusion; a fixed plate fixed to a surface portion of the support plate; a movable plate facing the surface portion of the support plate, and slidably held by the support plate; and a plurality of wind direction plates formed of an elastic material, and provided to extend between the fixed plate and the movable plate, wherein the movable plate has an angle holding portion into which the holding protrusion is inserted to maintain a sliding position of the movable plate, the angle holding portion includes a side wall portion and a plurality of partition wall portions, the side wall portion protruding in a direction opposite to a direction toward a portion where the support plate is disposed, thus forming a frame structure, the plurality of partition wall portions being formed in parallel, each of the plurality of partition wall portions is formed such that an angle adjustment portion and an angle restricting portion are integrally formed, the angle restricting portion coupling to the angle adjustment portion, and being formed to have a larger wall thickness than the angle adjustment portion, the movable plate is biased, by an elastic restoring force of the plurality of wind direction plates, in a direction opposite to a direction toward a portion where the fixed plate is disposed, the holding protrusion is disposed in a space surrounded by the plurality of partition wall portions and the side wall portion, and the angle restricting portion comes into contact with the holding protrusion.

A wind direction adjustment mechanism includes: a support plate having a holding protrusion; a fixed plate fixed to a surface portion of the support plate; a movable plate facing the surface portion of the support plate, and slidably held by the support plate; and a plurality of wind direction plates formed of an elastic material, and provided to extend between the fixed plate and the movable plate, wherein the movable plate has an angle holding portion into which the holding protrusion is inserted to maintain a sliding position of the movable plate, the angle holding portion includes a side wall portion and a plurality of partition wall portions, the side wall portion protruding in a direction opposite to a direction toward a portion where the support plate is disposed, thus forming a frame structure, the plurality of partition wall portions being formed in parallel, each of the plurality of partition wall portions is formed such that an angle adjustment portion and an angle restricting portion are integrally formed, the angle restricting portion coupling to the angle adjustment portion, and being formed to have a larger wall thickness than the angle adjustment portion, the movable plate is biased, by an elastic restoring force of the plurality of wind direction plates, in a direction opposite to a direction toward a portion where the fixed plate is disposed, the holding protrusion is disposed in a space surrounded by the plurality of partition wall portions and the side wall portion, and the angle restricting portion comes into contact with the holding protrusion.

An object of the present invention is to provide a ceiling cassette air conditioner with which design deterioration due to wind direction vanes during operation is reduced. The ceiling cassette air conditioner of this invention includes a main body arranged in a ceiling and having a rectangular cross-section opening opens on a room side, a blower fan blowing air taken in from an air inlet to a discharge outlet in the main body, a heat exchanger arranged in the main body and downstream of the blower fan and exchanging heat with the air taken in from the air inlet, a decorative panel covering the opening to be flush with a ceiling surface, and wind direction vanes arranged in the discharge outlet for adjusting blowing directions. The wind direction vanes are arranged behind the decorative panel.

A conditioned air blower system for ventilating a trailer interior includes a centrifugal blower and a heat exchange unit. The centrifugal blower includes a blower housing, an inlet portion configured to direct air into the blower housing, and a discharge portion configured to direct air from the blower housing into the trailer interior. The heat exchange unit includes an air inlet portion, heat exchange elements, and a conditioned air exit portion coupled to the inlet portion of the centrifugal blower. The heat exchange unit conditions ambient air introduced at the air inlet portion from a first temperature to a second temperature by heat exchange relationship with the heat exchange elements. The conditioned air blower system may include a controller operatively associated with the centrifugal blower. The controller monitors a condition related to the centrifugal blower, and regulates the supply of temperature-conditioned air in response to the condition.

Disclosed is an air deflector driving device, comprising a driving case and connecting rod (3). One side of the driving case is provided with a protruding opening (11), the connecting rod (3) is slidably provided in the driving case, and a tip (31) of the connecting rod (3) is limited in the direction perpendicular to the direction of movement of the connecting rod by means of the limiting structure. Furthermore, also disclosed is an indoor air conditioning unit using the driving device.

The air-conditioning-apparatus indoor unit includes a main body that has an air inlet and an air outlet that accommodates a heat exchanger and a fan, left-right deflectors that are arranged in the air outlet and are configured to change the direction of an air flow from the air outlet in a left-right direction, up-down deflectors that are arranged in the air outlet and are configured to change the direction of the air flow from the air outlet in an up-down direction, the infrared sensor disposed at one end in the left-right direction of the front surface of the main body, and a large air flow control plate, a small air flow control plate, and an upper air flow control plate that are arranged between the infrared sensor and one end of the left-right deflector close to the infrared sensor and that control the air flow from the air outlet.

An air conditioner including: a housing communicating with a space in which a window covering is installed, and including a suction port through which air is suctioned from the space and a discharge port through which air is discharged into an indoor area; a heat exchanger configured to exchange heat with the air suctioned through the suction port; a blower fan allowing air to be suctioned through the suction port or allowing air to be discharged through the discharge port; and a guide panel provided at the suction port to guide the window covering to prevent the window covering from covering the suction port.