Air conditioner and control method thereof

Abstract

The invention provides an air conditioner and a control method of the air conditioner, wherein the air conditioner comprises a four-way valve, a compressor, an outdoor heat exchanger, an indoor heat exchanger, a throttling device, a refrigerant heating device, a valve body and a temperature control device, wherein the refrigerant heating device is connected into a system of the air conditioner in series, and is used for heating refrigerant in the system of the air conditioner; the valve body is connected with the throttling device in parallel and is opened when the air conditioner performs frosting; the temperature control device is used for detecting the temperature of the refrigerant at a refrigerant outlet of the compressor in a heating mode of the air conditioner, and controlling the refrigerant heating device to work according to the temperature of the refrigerant. According to the air conditioner disclosed by the invention, the refrigerant heating device is connected into the air conditioning system in series, the valve body and the throttling device are connected in parallel, the temperature control device is capable of controlling the refrigerant heating device to work according to the temperature of the refrigerant at the refrigerant outlet of the compressor, compared with the prior art, the air conditioner is capable of heating indoors in a sustainable manner, the condition that a traditional air conditioner absorbs heat from the indoor environment for frosting of the outdoor heat exchanger during frosting is avoided, and the indoor temperature fluctuation is small.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, in particular to an air conditioner and a control method for the air conditioner. Background technique [0002] With the continuous improvement of people's quality of life, people have higher requirements for the comfort of air-conditioned rooms. The expectation of air-conditioning is not only to stay in the traditional cooling and heating functions, but also to the cooling and heating effects of air-conditioning. The comfort of cooling and heating puts forward higher requirements. During the use of existing air conditioners, many consumers complain that the indoor temperature fluctuates greatly when the air conditioner is heating and defrosting, which seriously affects the comfort of the room. and user experience, and most traditional heat pump air conditioners use four-way valve reversing to control defrosting. In addition, when the air humidity is high in winter, frequent def...

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Problems solved by technology

[0002] With the continuous improvement of people's quality of life, people have higher requirements for the comfort of air-conditioned rooms. The expectation of air-conditioning is not only to stay in the traditional cooling and heating functions, but also to the cooling and heating effects of air-conditioning. The comfort of cooling and heating puts forward higher requirements. During the use of existing air conditioners, many consumers complain that the indoor temperature fl

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