Air conditioner temperature and humidity control method and air conditioner

Abstract

The invention relates to the technical field of air conditioners, in particular to an air conditioner temperature and humidity control method and an air conditioner. The control method comprises the steps that current moisture content and current dew point temperature are calculated according to current indoor temperature and current indoor relative humidity; target indoor moisture content and target dew point temperature are calculated according to indoor set temperature and indoor set humidity; the operation mode of the air conditioner is selected according to the relative size of the current indoor temperature and the target temperature, the relative size of the current moisture content and the target moisture content or the relative size of the current dew point temperature and the target dew point temperature; and the frequency of the compressor is adjusted according to the relative size of the current dew point temperature and the target dew point temperature. The four operationmodes can meet different requirements, the temperature of an heat exchanger of the air conditioner is directly controlled to be equal to the dew point temperature corresponding to the indoor set temperature and the indoor set humidity or a weighted average value of the above dew point temperature and the current dew point temperature, rapid dehumidification is achieved, the user comfort is improved, and in addition, temperature control and humidity control are both achieved by controlling the frequency of the compressor.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner temperature and humidity control method and the air conditioner. Background technique [0002] An air conditioner is an air conditioner, which refers to a device that uses manual means to adjust and control the temperature, humidity, cleanliness and other parameters of the ambient air in a building or structure. Air conditioners generally include cold source / heat source equipment, cold and hot medium transmission and distribution systems, terminal devices and other auxiliary equipment. The control method of the existing household inverter air conditioner mainly uses temperature as the controlled parameter. During cooling operation, since there are two processes of cooling and dehumidification when the air flows through the evaporator, the temperature of the air-conditioned room is only controlled, and the influence of humidity on human comfort is igno...

AI Technical Summary

Problems solved by technology

According to the literature, at the same room temperature, 26°C, with the increase of the relative humidity of the room, the thermal sensation of the human body increases and the comfort level decreases.

Especially for the Jiangnan and South China areas with high temperature and humidity in summer, because the air conditioner uses temperature as the controlled parameter, the room humidity is high when the set temperature is high, and the human body comfort is poor. In order to meet the cool demand, many users lower the set temperature to To increase the room dehumidification, which will lead to increased power consumption

In order to avoid this problem, there is also a technology that simultaneously adjusts temperature and humidity. Most of the current technical solutions determine the target moisture content according to the set indoor temperature and indoor humidity, and determine the target moisture content through the current moisture content and the target moisture content. The relative size determines whether to dehumidify or not to dehumidify (moisturize). The entire control process takes a long time. When the temperature has not reached the set temperature, the humidity cannot be reduced quickly, and the comfort of the user is still difficult to improve during this process.

In addition, during the control process, according to the usage habits of most users, the speed of the indoor fan is often set by the user and cannot be adjusted, resulting in a blank area in the control

Images