Control method of variable frequency dehumidifier and control device

Abstract

The invention discloses a control method of a variable frequency dehumidifier. The control method comprises the steps of controlling the variable frequency dehumidifier to operate at high wind shield after the variable frequency dehumidifier is started up; detecting the environment temperature and environment humidity, and calculating the maximum objective operating frequency of a compressor in accordance with the environment temperature and environment humidity when the variable frequency dehumidifier is started up; controlling the compressor to obtain the middle temperature of a condenser in the variable frequency dehumidifier after the compressor operates at the maximum objective operating frequency for a preset time; and circularly judging whether the middle temperature of the condenser is located in a preset temperature interval, and adjusting the operating frequency of the compressor in accordance with a judging result. According to the control method of the variable frequency dehumidifier, the normal operation of the variable frequency dehumidifier can be ensured by adjusting the operating frequency of the compressor in a severe working condition with high temperature and high humidity, and the quick dehumidification effect of the variable frequency dehumidifier can be ensured. The invention further comprises a control device of the variable frequency dehumidifier.

Description

technical field [0001] The invention relates to the technical field of dehumidifiers, in particular to a control method for a frequency conversion dehumidifier and a control device for a frequency conversion dehumidifier. Background technique [0002] Household refrigerated dehumidifiers are currently dominated by fixed-frequency dehumidifiers. However, the disadvantages of fixed frequency dehumidifiers are: when the ambient temperature and ambient humidity rise, the discharge pressure of the compressor in the fixed frequency dehumidifier will increase due to the increase in the load of the refrigeration system, so the power and current of the whole machine will also increase. Large, which causes the compressor protector to easily operate under overload conditions, so that the fixed-frequency dehumidifier cannot work normally. Contents of the invention [0003] The object of the present invention is to solve at least one of the above-mentioned technical drawbacks. [000...

AI Technical Summary

Problems solved by technology

However, the disadvantages of fixed-frequency dehumidifiers are: when the ambient temperature and ambient humidity rise, the discharge pressure of the compressor in the fixed-frequency dehumidifier will increase due to the increase in the load of the refrigeration system, thereby increasing the power and current of the whole machine. Large, which leads to the compressor protector is easy to operate under overload conditions, so that the fixed frequency dehumidifier cannot work normally

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