Control method of crankshaft heating belt of multisplit air conditioning machine

Abstract

The invention relates to a control method of a crankshaft heating belt of a multisplit air conditioning machine. The control method comprises a first temperature sensor for detecting outdoor temperature, and a second temperature sensor for detecting the bottom temperature of a compressor; and the control method comprises the following steps: 1) the first temperature sensor and the second temperature sensor are started; and meanwhile, temperature critical values W1, W2 and W3 are set, wherein W1 is lower than W3; 2) the normality of the first temperature sensor and the second temperature sensoris judged; if one is abnormal, the whole system is stopped operating; 3) the system acquires an outdoor environment temperature Wexternal detected by the first temperature sensor; 4) if Wexternal islower than W1, the system acquires the bottom temperature Wpressure of the compressor detected by the second temperature sensor; and otherwise, the step 3) is turned to; 5) if Wpressure is lower thanW2, the crankshaft heating belt of the compressor is started; and otherwise, the step 4) is turned to; 6) if Wexternal is not lower than W3 or Wpresure is not lower than W2, the lasting time reaches 30 minutes, and the heating is stopped; and 7) the step 2) is returned for circulating operation. The method can guarantee internal oil temperature of the compressor on a higher level to reduce the energy consumption in low-temperature operation and standby state.

Description

technical field [0001] The invention relates to an air conditioner control method, especially a multi-connection control method, specifically a control method for a multi-connection crankshaft heating belt. Background technique [0002] With the improvement of people's living standards and the enhancement of energy-saving awareness, multi-connection machines have entered the majority of ordinary families and have been more and more widely used due to their energy-saving, flexible control, easy installation and maintenance and other characteristics. However, in a low-temperature environment, the internal oil temperature and refrigerant temperature of the multi-line compressor are low. When the power is turned on for the first time, it is easy to cause the refrigerant to evaporate and carry a large amount of lubricating oil out of the compressor, causing the compressor to lack oil and wear, and the low temperature The lubricating oil in the state cannot form a good lubricating...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a control method for the heating belt of the multi-connected crankshaft in order to solve the problems currently encountered in the crankshaft heating process of multi-connected compressors, which can ensure that the internal oil temperature of the compressor is at a relatively high level, reducing the Low temperature operation and energy consumption under standby, improve the use effect and reliability of the entire air conditioning system

Images