Air Conditioning System

Abstract

The present invention provides an air-conditioning system, which includes 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 connected in sequence, and the outdoor heat exchanger assembly includes Outdoor heat exchanger; the second solenoid valve is connected in series between the indoor heat exchanger and the throttling element, the indoor heat exchanger after series connection, the second solenoid valve and the first solenoid valve are connected in parallel, or the indoor heat exchanger after series connection, The second solenoid valve and the throttling element are connected in parallel with the first solenoid valve; the four-way valve has first to fourth valve ports, the first valve port is connected to the first port of the outdoor heat exchanger, and the second port of the outdoor heat exchanger is connected to The throttling element, the second valve port is connected to the exhaust end of the compressor, the third valve port is respectively connected to the first port of the indoor heat exchanger and the first solenoid valve, and the second port of the indoor heat exchanger is connected to the second solenoid valve, The fourth valve port communicates with the suction end of the compressor. The air conditioning system of the present invention enables the heat pump air conditioner to quickly defrost 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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