An indoor unit of an air-conditioning apparatus according to the present invention includes a casing having an air inlet provided at a top face, an air outlet provided at a lower portion, and an airflow passage through which the air inlet and the air outlet communicate with each other; a fan disposed in the casing; a heat exchanger disposed upstream of the fan in the casing; a first filter disposed upstream of the heat exchanger in the casing; a front panel attached at a front portion of the casing; a protrusion provided on a back face of the front panel; and a second filter disposed behind the front panel and between the protrusion and the heat exchanger, the second filter being separate from the first filter.

Disclosed herein is an air conditioner having improved maintenance ability by arranging a fan to be attached or detached without removing a guide member. An air conditioner includes a main body with an opening formed in the bottom, a ceiling panel arranged under the main body for covering the opening, and having a sucking hole through which air is sucked in and a discharging hole through which air is discharged, a fan detachably installed inside the main body through the opening for guiding indoor air to be sucked in through the sucking hole in the vertical direction and discharged in the horizontal direction, a heat exchanger arranged in the radial direction of the fan to be separated from the fan for performing heat exchange on the air discharged from the fan and a guide member arranged between the fan and the heat exchanger in the radial direction of the fan to be separated from the fan for guiding the air discharged from the fan toward the heat exchanger.

A temperature-sensing bulb support for an air-conditioner indoor unit, and an air-conditioner indoor unit are disclosed. The temperature-sensing bulb support includes: a support body. The support body is adapted to be fixed to a housing of the air-conditioner indoor unit. The support body defines a filter mesh positioning groove configured to accommodate an end frame bar of a filter mesh, and the support body further defines a temperature-sensing bulb accommodating groove configured to accommodate a temperature-sensing bulb. The temperature-sensing bulb accommodating groove is isolated from the filter mesh positioning groove by a partition wall, and the temperature-sensing bulb accommodating groove is located outside the filter mesh positioning groove. The temperature-sensing bulb is placed outside the filter mesh while protecting the temperature-sensing bulb, such that the temperature-sensing bulb can detect ambient temperature more accurately, aiding in increasing accuracy of control over the air-conditioner indoor unit.

A split air conditioner has a cabinet with a fan and evaporator for mounting within a structure. The cabinet includes one or more movable dampers or movable filters positioned in the flow path between the air inlet and the outlet for selectively filtering contaminants from the air to provide a greater or lesser degree of filtration of the air. The movable filters include sliding and/or pivot mounting structure which may accommodate stacking multiple filters with different filtering characteristics. The system may operate in a filtering only mode with no cooling, a cooling only mode with no filtering, or a combination of cooling and selective filtering.

An indoor unit for an air conditioner including: a cabinet assembly forming an external appearance of the indoor unit and having a suction port formed in a rear surface of the cabinet; a filter module movably disposed in rear of the cabinet assembly; a filter module mounted to the filter mounting member and filtering foreign substances in air flowing into the suction port; a mobile member connected to the filter mounting member and moving a position of the filter mounting member; a driving device pressing the mobile member to change the position of the filter mounting member; and a controller configured to, in response to receiving a control command to change the position of the filter mounting member, operate the driving device that presses the mobile member.

An indoor unit for an air conditioner including: a cabinet assembly forming an external appearance of the indoor unit and having a suction port formed in a rear surface of the cabinet; a filter module movably disposed in rear of the cabinet assembly; a filter module mounted to the filter mounting member and filtering foreign substances in air flowing into the suction port; a mobile member connected to the filter mounting member and moving a position of the filter mounting member; a driving device pressing the mobile member to change the position of the filter mounting member; and a controller configured to, in response to receiving a control command to change the position of the filter mounting member, operate the driving device that presses the mobile member.

An air conditioner includes a housing including an outlet, a panel attachable to or detachable from a lower side of the housing and including an inlet to introduce air therethrough, a first filter installable to the panel to filter the introduced air, a second filter installable to the panel and configured to further filter the introduced air using an electrostatic force, and a lifter configured to detach the panel from the lower side of the housing by lowering the panel from an initial position, and to attach the panel to the lower side of the housing by lifting the panel from a maintenance position. When the panel is lowered to the maintenance position, one or more of the first filter and the second filter are accessible for maintenance thereon.

An air conditioner includes a housing including an outlet, a panel attachable to or detachable from a lower side of the housing and including an inlet to introduce air therethrough, a first filter installable to the panel to filter the introduced air, a second filter installable to the panel and configured to further filter the introduced air using an electrostatic force, and a lifter configured to detach the panel from the lower side of the housing by lowering the panel from an initial position, and to attach the panel to the lower side of the housing by lifting the panel from a maintenance position. When the panel is lowered to the maintenance position, one or more of the first filter and the second filter are accessible for maintenance thereon.

An air conditioner according to an aspect of the present disclosure includes a wall-mounted indoor unit which includes a heat exchanger, a blower, and a housing that accommodates the heat exchanger and the blower therein, and which is fixed to a wall surface, and a discharge unit which is disposed above the indoor unit outside the indoor unit, in which the housing includes a suction port that opens upward, the discharge unit includes a discharge device disposed above the suction port, at least a portion of air suctioned into the suction port passes through the discharge device, and a center of the discharge unit in a right-left direction of the indoor unit is disposed to be shifted to one side in the right-left direction with respect to a center of the indoor unit.

An air conditioner according to an aspect of the present disclosure includes a wall-mounted indoor unit which includes a heat exchanger, a blower, and a housing that accommodates the heat exchanger and the blower therein, and which is fixed to a wall surface, and a discharge unit which is disposed above the indoor unit outside the indoor unit, in which the indoor unit includes a first control unit that controls the indoor unit, the housing includes a suction port that opens upward, the discharge unit includes a discharge device disposed above the suction port, at least a portion of air suctioned into the suction port passes through the discharge device, and the discharge device is driven based on a signal received from the first control unit.