Air conditioning system

Abstract

The invention provides an air conditioning system which comprises a four-way valve, a compressor, an outdoor heat exchanger, an indoor heat exchanger, a throttle mechanism and a defrosting access, wherein the defrosting access comprises an electronic device, a microchannel heat exchanger, a first electromagnetic valve and a second electromagnetic valve. When the air conditioning system is in a defrosting mode, the compressor doesn't shut down, the four-way valve isn't reversed, and an indoor fan still blows hot air; the first electromagnetic valve is switched on, the second electromagnetic valve is switched off, a refrigerant in the throttle mechanism flows into the microchannel heat exchanger to absorb heat generated by heating of an outdoor electronic device, enters the outdoor heat exchanger for defrosting the outdoor heat exchanger to release heat and enters an air return interface of the compressor, a circulation is completed, and the defrosting is finished in a heating mode. According to the provided air conditioning system, the compressor is not required to shut down and the four-way valve is not required to be reversed during defrosting, the working reliability is high, the influence on working of a power grid is low, the comfort of air supply of an air conditioner is good, the defrosting time is short, and the energy consumption is low.

Description

technical field [0001] The invention belongs to the technical field of air conditioning, and in particular relates to an energy-saving air-conditioning system that utilizes electronically controlled heat dissipation to defrost and save energy. Background technique [0002] With people's pursuit of a comfortable life, the application of heat pump air conditioners has long been popularized. When the heat pump air conditioner is heating at low temperature, the surface of the fins of the outdoor heat exchanger is prone to frosting. The frosting on the fins affects the heat transfer coefficient of the air conditioning system and reduces the heating capacity. It is necessary to defrost to ensure the continuous stability of the air conditioning system run. [0003] At present, most of the defrosting methods used in the air conditioning system adopt the exhaust defrosting method, that is, the four-way valve is reversed, and the exhaust gas of the compressor is passed into the outdo...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide an air-conditioning system that utilizes the electric control of the outdoor machine to dissipate heat to eliminate the frost on the outdoor heat exchanger. The commutation brings about the problems of reducing the reliability of the air conditioning system, affecting the normal operation of the power grid, affecting the comfort of the air supply of the air conditioner, long defrosting time and high energy consumption

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