Method and device for controlling dehumidifier and dehumidifier

Abstract

The invention discloses a method and device for controlling a dehumidifier and the dehumidifier. The method includes the steps of receiving an object-drying-mode running command, and controlling the dehumidifier to run in the object drying mode according to the running command; after the dehumidifier runs by preset time, detecting the condenser temperature, the air inlet drying ball temperature, the air inlet relative humidity, the evaporator temperature and a preset condenser temperature maximum value of the dehumidifier; calculating the dew point temperature according to the air inlet drying ball temperature and the air inlet relative humidity; judging whether the relationships among the condenser temperature, the air inlet drying ball temperature, the air inlet relative humidity, the evaporator temperature and the dew point temperature meet preset conditions or not; if the relationships among the condenser temperature, the air inlet drying ball temperature, the air inlet relative humidity, the evaporator temperature and the dew point temperature meet preset conditions, obtaining a first difference value between the preset condenser temperature maximum value and the condenser temperature; adjusting the running frequency of a compressor and the opening degree of an expansion valve of the dehumidifier according to the first difference value. By means of the method, the blown heat can be effectively used for drying clothes, and energy losses can be reduced.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to a control method and device for a dehumidifier and a dehumidifier with the control device. Background technique [0002] At present, the range of dehumidifier products is more and more widely used. Many high-end dehumidifiers use frequency conversion dehumidifiers, and some users will use these dehumidifiers to dry clothes, etc., so it is necessary to control the air volume and heat of the dehumidifier well. In order to realize the function of drying clothes. [0003] In the related art, the existing dehumidifiers are generally controlled in the following way: in the general operating environment, they are operated in a set state, and the outlet air temperature is basically constant at this time, and when the ambient temperature or humidity changes, such as when the temperature is low If the dehumidifier is still running at the set state, the condensation temperatur...

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Problems solved by technology

[0003] In the related art, the existing dehumidifiers are generally controlled in the following way: in the general operating environment, they are operated in a set state, and the outlet air temperature is basically constant at this time, and when the ambient temperature or humidity changes, such as when the temperature is low If the dehumidifier is still running at the set state, the condens

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