Apparatus for controlling refrigerant level

An apparatus for controlling a refrigerant level, the apparatus comprising:

• a first detecting unit installed at a lower side of the inside of the refrigerant tank, for detecting whether a refrigerant stored at a lower side of the inside of the refrigerant tank is a liquefied refrigerant or a gaseous refrigerant;
• a second detecting unit installed at an upper side of the inside of the refrigerant tank, for detecting whether a refrigerant stored at an upper side of the inside of the refrigerant tank is a liquefied refrigerant or a gaseous refrigerant;
• and
• a control unit controlling a refrigerant flow-rate controller according to values measured by the first detecting unit and the second detecting unit, to thereby allow the proper amount of refrigerant to stay within the refrigerant tank.

An apparatus for controlling a refrigerant level, the apparatus comprising:

• a first detecting unit installed at a lower side of the inside of a refrigerant tank, for detecting whether a refrigerant stored at a lower side of the inside of the refrigerant tank is a liquefied refrigerant or a gaseous refrigerant by using a heat conductivity difference between a liquefied refrigerant and a gaseous refrigerant stored within the refrigerant tank;
• a second detecting unit installed at an upper side of the inside of the refrigerant tank, for detecting whether a refrigerant stored at an upper side of the inside of the refrigerant tank is a liquefied refrigerant or a gaseous refrigerant by using a heat conductivity difference between a liquefied refrigerant and a gaseous refrigerant stored within the refrigerant tank;
• and
• a control unit controlling a refrigerant flow-rate controller according to values measured by the first detecting unit and the second detecting unit to thereby allow the proper amount of refrigerant to stay within the refrigerant tank.