Outdoor unit and air conditioner including the same

An air conditioner comprising:

• an outdoor unit comprising a case including an opening and an inlet hole configured to enable entry of external air into the case, the case defining an exterior of the outdoor unit, a heat-exchanger located in the case and configured to exchange heat with the external air that entered the case via the inlet hole, and a compressor module connected with the heat-exchanger and configured to supply a refrigerant that exchanges heat between the external air and the heat-exchanger;
• and
• an indoor unit connected with the compressor module of the outdoor unit or the heat-exchanger of the outdoor unit via a refrigerant path and configured to exchange heat by circulating the refrigerant between the indoor unit and the compressor module or the heat-exchanger of the outdoor unit,
• wherein the outdoor unit further comprises a base plate located in the case and configured to support the heat-exchanger, a sliding plate that is located on the base plate, that is configured to support the compressor module, and that is configured to slide, and a rotary shaft coupled to the sliding plate and configured to assist rotation of the sliding plate towards the opening of the case, and
• wherein the sliding plate is configured to slide at least partially out of the case via the opening of the case to expose a predetermined area of the compressor module,
• wherein the base plate comprises a curved guide rail that extends along a circumferential direction with respect to and around the rotary shaft, and
• wherein the sliding plate comprises:
• a curved roller configured to move along the curved guide rail,
• a curved roller housing that faces the base plate and that is configured to accommodate the curved roller,
• a curved roller rotary shaft in contact with at least a predetermined area of a center of the curved roller and configured to rotatably support the curved roller,
• a first rotation stopper located in a position corresponding to a first end of the curved guide rail and configured to block the sliding plate from further rotating towards the inside of the case, and
• a second rotation stopper located in a position corresponding to a second end of the curved guide rail that is closer to the opening than the first end of the curved guide rail and configured to block the sliding plate from further rotating towards the opening.