Air conditioning system and method for controlling the same

Abstract

The present invention relates to air conditioning systems, and more particularly, to an air conditioning system which can control a refrigerant flow rate to a heat exchanger exchanging heat with room air to be optimum; and a method for controlling the same. The air conditioning system includes an outdoor heat exchange part including a compressor for compressing refrigerant, an outdoor heat exchanger for making the refrigerant to heat exchange with outdoor air, and an expansion device for expanding the refrigerant, an indoor heat exchange part including a pump for making refrigerant in a flow path independent from the outdoor heat exchange part to flow, at least one indoor heat exchanger for making the refrigerant heat exchange with room air, and a flow rate control device for controlling a flow rate of the refrigerant, and a hybrid heat exchange part for making the outdoor heat exchange part and the indoor heat exchange part, which are independent from each other, to heat exchange with each other. According to this, the air conditioning system can be installed on a multistory building without limitation of a height of the building as far as a capacity of the pump permits. Moreover, even if a refrigerant pipe is long, the air conditioning system is applicable even to a system with a refrigerant pipe line longer than the related art as far as the capacity of the pump permits, and fine control of a room air temperature is possible.

Description

CROSS-REFERENCE TO RELATED APPLICATION [0001] This application claims the benefit of Korean Application No. P2004-96315 filed on Nov. 23, 2004, which is hereby incorporated by reference as if fully set forth herein. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to air conditioning systems, and more particularly, to an air conditioning system which can control a refrigerant flow rate to a heat exchanger exchanging heat with room air to be optimum; and a method for controlling the same. [0004] 2. Discussion of the Related Art [0005] In general, the air conditioning system cools or heats a room by compressing, condensing, expanding, and evaporating refrigerant. In general, the air conditioning system is provided with a compressor, an indoor heat exchanger, an expansion device, and an outdoor heat exchanger. [0006] In the air conditioning systems, there are a cooling system in which a refrigerating cycle is operated only in one directi...

AI Technical Summary

Benefits of technology

[0012] Another object of the present invention is to provide an air conditioning system and a method for controlling the same, which enables a fine control of a room temperature.

Problems solved by technology

However, if a height difference or a distance between the indoor heat exchanger, and the outdoor heat exchanger is great significantly, since the related art air conditioning system has a poor oil recovery rate, to fail in supply of an adequate rate of oil to the compressor, which is liable to result in damage to the compressor, development of an air conditioning system that can solve such a problem has been required.

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