AIR CONDITIONER AND METHOD FOR CONTROLLING THE SAME

Title:

AIR CONDITIONER AND METHOD FOR CONTROLLING THE SAME

Document Type and Number:

WIPO Patent Application WO/2018/221875

Kind Code:

A1

Abstract:

An air conditioner and a method for controlling the same are disclosed. The air conditioner implements a multistage expansion scheme by implementing serial connection between electronic expansion valves including in the R410A refrigerant-based air conditioner, and thus guarantees an optimum compression ratio in all cooling/heating load regions. Although cycle characteristics are changed by changing R410A refrigerant to R32 refrigerant, the air conditioner optimizes the cycle simply by controlling a degree of opening of electronic expansion valves, respectively. Since the cycle optimization is implemented using the multistage expansion scheme in which legacy electronic expansion valves are coupled in series, the design modification is minimized without design modification of requisite constituent elements such as a heat exchanger, system implementation is facilitated, resulting in high efficiency in cost and productivity. Cooling/heating performance improvement and reliability guarantee are achieved under all load conditions, resulting in increased system efficiency.

Inventors:

SON KIL SOO (KR)
KIM SEOK KYUN (KR)
BAEK JONG-YEOP (KR)
AHN BYOUNG-OK (KR)
CHO DONG-HO (KR)
KIM HYUN KOOK (KR)
SHIN HYO-JUN (KR)
YOO SANG HO (KR)
JUN HONG SEOK (KR)

Application Number:

PCT/KR2018/005604

Publication Date:

December 06, 2018

Filing Date:

May 16, 2018

Export Citation:

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Assignee:

SAMSUNG ELECTRONICS CO LTD (KR)

International Classes:

F25B49/02; F24F11/83; F25B1/04; F25B9/00; F25B41/00; F25B41/06

Foreign References:

JP2003156260A	2003-05-30
JP5744219B2	2015-07-08
US20100193156A1	2010-08-05
KR100461653B1	2004-12-18
JP2014214964A	2014-11-17
EP2730859A1	2014-05-14
JP2012149857A	2012-08-09
US5628201A	1997-05-13

Other References: