Heating anti-overload control method and device of air conditioner and air conditioner

Abstract

The invention provides a heating anti-overload control method and device of an air conditioner and the air conditioner, and relates to the technical field of air conditioners. The method comprises thesteps of: continuously detecting the temperature of an indoor heat exchanger coiler during heating; controlling an operation state of an outer fan according to the temperature of the indoor heat exchanger coiler, a preset first numerical value and a preset second numerical value; judging if a compressor is overloaded for tripping; and correcting the first numerical value when judging that the compressor is overloaded for tripping. The method judges if an air conditioning system is located in a high-load state through detection if the compressor is overloaded, so that a parameter set value oftriggering the outer fan to stop operation is corrected, the start and top protection timeliness and effectiveness of the outer fan are guaranteed, the frequent overload tripping of the compressor isprevented, and the heating anti-overload control of the air conditioner is realized.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, in particular to a heating and overload prevention control method and device for an air conditioner and an air conditioner. Background technique [0002] With the improvement of living standards, the penetration rate of air conditioners is also getting higher and higher, and people will use more space to adjust the room temperature conditions to create a more comfortable working and living environment. When air conditioners are used for heating in spring and autumn, due to the high indoor and outdoor temperatures, the heating load will also be high. The high pressure of the system and the high exhaust temperature are all unfavorable to the reliability of the air conditioner. At present, the existing fixed-frequency air conditioner judges the indoor heat exchanger coil temperature T 内盘 The height of the external fan is controlled to start and stop intermittently, thereby reducing...

AI Technical Summary

Problems solved by technology

However, for different system configurations, or the condition of the extension tube during installation, the cured T 内盘 The parameter setting will become unreasonable, which may lead to the inability to trigger the start and stop of the external fan in time, the system will run at high load for a long time, and the compressor will frequently trip due to overload, which will affect the system reliability and heating comfort

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