Integrated energy-saving fresh air conditioner

An integrated energy-saving fresh air conditioner comprises an air conditioning refrigeration main unit with an evaporator, and also comprises an indoor and outdoor air volume regulation and control valve and an enthalpy exchanger; the evaporator and the enthalpy exchanger adopt an integrated structure; the outdoor air conditioning refrigeration main unit is connected with the evaporator; an air outlet is formed in the upper part of the evaporator, and is communicated to the indoor; an indoor air inlet is formed in the lower part of the evaporator, and is communicated to the indoor; a fresh air inlet is formed in the upper part of the enthalpy exchanger; the indoor and outdoor air volume regulation and control valve is arranged between the fresh air inlet and the indoor air inlet, and is used for closing or opening the fresh air inlet and the indoor air inlet; another indoor air inlet is formed in the lower part of the enthalpy exchanger; an outdoor air inlet and an air outlet are formed in the other side of the enthalpy exchanger. The integrated energy-saving fresh air conditioner has the advantages that the enthalpy exchanger and an indoor and outdoor return air supply and control system form an integrated structure with the main unit or a blower coil, air supply and fresh air volume control can be carried out through various forms such as fresh air circulation volume control of a multi-split air-conditioning system and an independent air-conditioning system, and the energy-saving effect of a system is achieved.