Fresh air conditioner and control method thereof

Abstract

The invention provides a fresh air conditioner and a control method thereof. The fresh air conditioner comprises an air conditioner body and a fresh air device positioned at one end of the air conditioner body, wherein a primary evaporator is arranged in the air conditioner body for exchanging heat for indoor air; and an air outlet of the fresh air device is equipped with a secondary evaporator for exchanging heat of fed-in outdoor fresh air. The control method for the fresh air conditioner comprises the following steps of: starting the fresh air conditioner; obtaining an indoor air quality value; judging whether the air quality value is greater than an air quality threshold value or not; starting the fresh air device if the air quality value is greater than the air quality threshold value; obtaining outdoor environment temperature and indoor environment temperature; judging whether temperature difference between the outdoor environment temperature and the indoor environment temperature is greater than a temperature difference threshold value or not; starting the secondary evaporator for exchanging heat for outdoor fresh air if the temperature difference between the outdoor environment temperature and the indoor environment temperature is greater than the temperature difference threshold value; switching off the secondary evaporator until the temperature difference is smaller than the temperature difference threshold value; and switching off the fresh air conditioner. The technical scheme provided by the invention can be used for controlling indoor air quality while controlling the indoor temperature stably, so that good experience is given to a user.

Description

technical field [0001] The invention relates to the technical field of home appliances, in particular to a fresh air conditioner and a control method thereof. Background technique [0002] An air conditioner is a widely used household appliance. It generally has heating and cooling functions. When the ambient temperature is too low or too high, it can adjust the temperature of the indoor air to provide users with a suitable indoor environment and effectively improve the air conditioner. Quality of life of users. [0003] However, because the current air conditioners only circulate the indoor air to heat or cool down when heating or cooling, and the user will close the door of the living room at the same time in order to maintain the indoor temperature, so that the indoor air quality will be reduced. It will gradually deteriorate, which will adversely affect the user's health. In particular, in recent years, air pollution has been increasing day by day, especially in the wi...

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Problems solved by technology

[0004] The current air conditioner fresh air air conditioner introduces a fresh air device, and when the fresh air function is used, the amount of air for heat exchange will increase. Under the premise that the hea

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