Compressor and air conditioner including the same

An air conditioner comprising:

• a compressor;
• a condenser which condenses high temperature and high pressure refrigerant obtained by the compressor;
• an expansion valve which converts the refrigerant discharged from the condenser into low pressure refrigerant;
• and
• an evaporator by which the refrigerant discharged from the expansion valve is evaporated and converted into low temperature and low pressure refrigerant,
• wherein the compressor comprises
• a casing defining an external appearance thereof;
• at least one cylinder comprising an inner space, a rolling piston which eccentrically turns in the inner space, a vane which radially abuts the rolling piston and divides the inner space into a suction chamber and a compression chamber, and a vane chamber recessed outward of the inner space such that the vane advances and retreats, the cylinder being provided within the casing;
• a plurality of plates disposed above and below the at least one cylinder so as to define the inner space;
• and
• a check valve provided in one of the at least one cylinder and the plural plates, intermediate pressure refrigerant being supplied to the inner space of the at least one cylinder through the check valve, and
• wherein the check valve is provided in a first area within an angle of 220 to 340 degrees from a position of the vane of the at least one cylinder in a direction of rotation of the rolling piston or in a second area of at least one of the plural plates corresponding to the first area.

A compressor comprising:

• a casing defining an external appearance thereof;
• at least one cylinder comprising an inner space, a rolling piston which eccentrically turns in the inner space, a vane which radially abuts the rolling piston and divides the inner space into a suction chamber and a compression chamber, and a vane chamber recessed outward of the inner space such that the vane advances and retreats, the cylinder being provided within the casing;
• a plurality of plates disposed above and below the at least one cylinder so as to define the inner space;
• an injection line installed by passing through one of the at least one cylinder and the plural plates, intermediate pressure refrigerant being supplied to the inner space of the at least one cylinder through the injection line;
• a check valve installed on the injection line;
• and
• a drive element which has a rotary shaft passing through the at least one cylinder and the plural plates and provides driving force allowing the rolling piston to turn.