Air conditioning system

Abstract

The invention provides an air conditioning system. The air conditioning system comprises a compressor, a four-way valve, an indoor heat exchanger, a throttling element, an outdoor heat exchanger assembly, a first solenoid valve and a second solenoid valve which are sequentially connected; the outdoor heat exchanger assembly comprises an outdoor heat exchanger; the second solenoid valve is connected in series between the indoor heat exchanger and the throttling element; the indoor heat exchanger and the second solenoid valve which are connected in series are connected in parallel with the first solenoid valve, or the indoor heat exchanger, the second solenoid valve and the throttling element which are connected in series are connected with the first solenoid valve in parallel; the four-way valve is equipped with a first valve port, a second valve port, a third valve port and a fourth valve port; the first valve port communicates with a first end port of the outdoor heat exchanger; a second end port of the outdoor heat exchanger communicates with the throttling element; the second valve port communicates with an exhaust valve of the compressor; the third valve port respectively communicates with the first end port and the first solenoid valve of the indoor heat exchanger; the second end port of the indoor heat exchanger communicates with the second solenoid valve; the fourth valve port communicates with the air inlet device of the compressor. According to the air conditioning system, a heat pump type air conditioner can be used for quickly defrosting the outdoor heat exchanger.

Description

technical field [0001] The invention relates to the refrigeration field, in particular to an air conditioning system. Background technique [0002] In the continuous heating cycle mode, the existing air-conditioning system often achieves the purpose of continuous heating through the heat absorbed and released by the heat storage material, but the use of heat storage to achieve continuous defrosting has the following possible hidden dangers: 1) Insufficient heat storage of the heat storage material leads to lack of heat in the process of continuous heating and defrosting, which causes the return air of the compressor to carry liquid and wear the compressor; The temperature effect is not ideal. During this period of defrosting cycle, half of the time the difference between the outlet air temperature and the inlet air temperature is not large, no heat is blown out, and the heating effect is poor during defrosting; 3) The heat storage form requires redesigning the storage The t...

AI Technical Summary

Problems solved by technology

[0002] In the continuous heating cycle mode, the existing air-conditioning system often achieves the purpose of continuous heating through the heat absorbed and released by the heat storage material, but the use of heat storage to achieve continuous defrosting has the following possible hidden dangers: 1) Insufficient heat storage of the heat storage material leads to lack of heat in the process of continuous heating and defrosting, which causes the return air of the compressor to carry liquid and wear the compressor; The temperature effect is not ideal. During this period of defrosting cycle, half of the time the difference between the outlet air temperature and the inlet air temperature is not large, no heat is blown out, and the heating effect is poor during defrosting; 3) The heat storage form requires redesigning the storage The thermal device requires a large adjustment of the structure of the external unit. In addition, the selection of the heat storage material and the design of the structure of the heat storage tank are complicated, and there are hidden dangers such as leakage and long-term deterioration.

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