Compressor and refrigeration cycle device having the same

A refrigeration cycle device, comprising:

• a condenser;
• an expander connected to the condenser;
• an evaporator connected to the expander;
• a compressor connected to the evaporator and configured to compress a refrigerant;
• and
• a valve, disposed on at least one of an outside or an inside of the compressor, configured to control a flow of the refrigerant in the compressor, wherein the valve includes:
• a valve chamber including a refrigerant inlet and a refrigerant outlet,
• a floating body, disposed in the valve chamber and including a flow path connecting between the refrigerant inlet and the refrigerant outlet, and configured to be movable to control a flow of the refrigerant into the valve chamber and a flow of the refrigerant out of the valve chamber, and
• a bypass flow path, formed in the valve chamber, and configured to be opened or closed based on a movement of the floating body,
• wherein the floating body is movable by the refrigerant passing through the flow path to open the refrigerant inlet and close the bypass flow path so that the refrigerant flows into the refrigerant inlet and out of the refrigerant outlet when a pressure at the refrigerant inlet is greater than a pressure at the refrigerant outlet, and
• the floating body is movable to close the refrigerant inlet and open the bypass flow path so that the refrigerant is detoured through the bypass flow path when the pressure at the refrigerant inlet is not greater than the pressure at the refrigerant outlet.