Air conditioner and control method thereof
AssigneeLG Electronics Inc.
InventorsByeongsu KIM, Yonghee JANG
Life of this patent
Estimating the term…
Abstract
Provided is an air conditioner. The air conditioner including a compressor, an outdoor heat exchanger, an indoor heat exchanger, and an expansion device includes a supercooling device for supercooling a refrigerant condensed in the outdoor heat exchanger or the indoor heat exchanger, an injection passage through which the refrigerant passing through the supercooling device is introduced into an injection inflow part of the compressor, a bypass passage extending from the injection passage to a suction part of the compressor to bypass the refrigerant, and a passage opening/closing part disposed in at least one of the injection passage and the bypass passage to selectively block a flow of the refrigerant.
Claims15
An air conditioner comprising a compressor, an outdoor heat exchanger, an indoor heat exchanger, and an expansion device, the air conditioner comprising:
- a supercooling device for supercooling a refrigerant condensed in the outdoor heat exchanger or the indoor heat exchanger;
- an injection passage through which the refrigerant passing through the supercooling device is introduced into an injection inflow part of the compressor;
- a bypass passage extending from the injection passage to a suction part of the compressor to bypass the refrigerant;
- and
- a passage opening/closing part disposed in at least one of the injection passage and the bypass passage to selectively block a flow of the refrigerant.
A method for controlling an air conditioner comprising a compressor, an outdoor heat exchanger, an indoor heat exchanger, and an expansion device, the method comprising:
- recognizing whether a cooling or heating operation of the air conditioner is performed;
- and
- injecting a refrigerant into an injection inflow part of the compressor by closing a first passage opening/closing part and opening a second passage opening/closing part when the air conditioner performs the heating operation, and
- suctioning a refrigerant into a suction part of the compressor by opening the first passage opening/closing part and closing the second passage opening/closing part when the air conditioner performs the cooling operation.
Dependencies are inferred from the claim text.