Air conditioner and attenuation compensation control method for water pump of air conditioner

Abstract

The invention discloses an air conditioner and an attenuation compensation control method of a water pump of the air conditioner, the air conditioner comprises a refrigerant circulation loop, a compressor, a water tank, a water fetching motor, the water pump and a controller, and the controller is configured to set a compensation flag bit of the water pump to be 0 after the air conditioner is started to run, determine that the rotating speed of the water fetching motor does not exceed a high-water-level rotating speed threshold value, and control the water pump to rotate; controlling the water pump to operate according to a preset rated voltage value, acquiring a current working current value of the water pump, judging whether the water pump is subjected to mechanical attenuation or not according to the current working current value and the compensation flag bit when the rotating speed of the water fetching motor does not exceed an idle rotating speed threshold value, and if yes, setting the compensation flag bit to be 1, acquiring a current environment temperature, and adjusting the driving voltage of the water pump according to the current environment temperature, the current working current value of the water pump and the rated current value of the water pump, otherwise, controlling the water pump to operate according to the rated voltage value so as to improve the water pumping effect of the water pump and the drainage effect of the air conditioner.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an attenuation compensation control method for an air conditioner and a water pump thereof. Background technique [0002] In the air conditioner industry, mobile air conditioners use water pumps and water pumping motors for drainage. During the whole operation of the mobile air conditioner, a large amount of condensed water will be produced by the lower condenser, which will eventually gather into the bottom water tank. When there is a lot of condensed water in the sink, if the water is not drained in time, the water will flow to the ground and cause losses to users. At this time, the operation of the water pump can be controlled to pump the condensed water to the outside of the body, so as to ensure that the whole machine can run continuously for a long time. [0003] After the pump runs for a long time, mechanical wear will occur inside the pump body, and the rotor b...

AI Technical Summary

Problems solved by technology

[0003] After the water pump has been in operation for a long time, mechanical wear will occur inside the pump body, and the rotor blades will idle intermittently, resulting in unsmooth pumping

On the other hand, there will be more impurities and scale in the pump, which will block the rotation of the motor shaft.

At present, the industry mainly controls the drainage direction of intelligent water pumps, and does not pay attention to the problem of poor drainage effect due to the attenuation of the water pump after long-term operation, and has not formulated a mature and effective set of control methods for this problem.

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