Lg Electronics Inc.

Jin-Ha Choi

Ki-bum Kim

Si-Kyong Sung

Tae-Hee Kwak

Chi-Woo Song

Seok-Ho Yoon

Ho-Jong Jeong

Il-Nahm Hwang

Jae-Sik Kang

Do-Yong Ha

Kyung-Won Seo

Sung-Oh Choi

Balk-Young Chung

Pil-Hyun Yoon

Ki-Baik Kwon

Won-Chul Kang

Seung-Yong Chang

Ki-Bum Kim

A multi type air-conditioner is provided. The multi type air conditioner includes an outdoor unit having a plurality of outdoor heat exchangers that heat-exchanges with outdoor air and a compressor that compresses a refrigerant; a plurality of indoor units that performs either cooling or heating; a high pressure pipe connected between a discharge side of the compressor and the plurality of indoor units; a low pressure pipe connected between a suction side of the compressor and the plurality of indoor units; and a refrigerant exhauster provided between the high pressure pipe and the low pressure pipe. The refrigerant exhauster discharges a liquid refrigerant to the low pressure pipe when the liquid refrigerant is accumulated in the high pressure pipe, whereby degradation of cooling capability due to a lack of refrigerant may be prevented by minimizing accumulation of the liquid refrigerant in the high pressure pipe in a cooling operation mode.

Multi type air-conditioner and control method thereof

An air conditioner having a service valve assembly which comprises a connection body connected with a refrigerant pipe through which a refrigerant flows, and having a penetration passage through which the refrigerant flows; an opening/closing unit disposed in the connection body, and having a blocking hole for opening/closing the passage of the refrigerant flowing through the penetration passage; a plurality of ports disposed at the connection body, respectively, by a particular interval therebetween, connected with the penetration passage, and having an opened end portion, respectively; and a filter unit removably coupled to each end portion of the ports such that the refrigerant flowing through the penetration passage is bypassed to the ports to thus be filtered thereby, whereby it is possible to basically solve the problem in a blocking caused by moisture and foreign materials within a circulation system of the air conditioner, and to simplify the construction of the system by being provided with a filter and a drier which are removable.

Service valve assembly and air conditioner having the same

A multi type air conditioner comprises: an outdoor unit including an outdoor heat exchanger heat-exchanged with the outdoor air, a compressor compressing a refrigerant, and a first four-way valve and a second four-way valve switching a refrigerant flow path; indoor units performing at least one of cooling operation and heating operation; and a distributor including a low pressure pipe connected between the first four-way valve and each of the indoor units, a high pressure pipe connected between the second four-way valve and each of the indoor units, and a refrigerant pipe connected between the outer heat-exchanger and each of the indoor units. Accordingly, flow resistance of a refrigerant is reduced in heating operation, thereby improving heating performance and heating efficiency, and the amount of refrigerant accumulated within a high pressure pipe is minimized in cooling operation, thereby improving cooling performance and cooling efficiency.

Growing community of inventors

Gyeonggi-do, South Korea

Jin-Ha Choi