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Defrost structure and defrost method of a dehumidifier

A technology for dehumidifiers and evaporators, applied in refrigerators, refrigeration and liquefaction, damage protection, etc., can solve the problems of slow defrosting time, long defrosting time, and affecting the service life of compressors, etc., achieving low cost and simple structure , Improve the effect of dehumidification

Active Publication Date: 2016-06-01
MIDEA GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the temperature difference between the ambient air and the surface of the evaporator is not high, resulting in a long defrosting time, especially in a medium-low temperature environment, the defrosting time of the whole machine is very slow, the dehumidification efficiency of the dehumidifier is reduced, and the compressor is frequently started and stopped, which affects Compressor service life

Method used

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  • Defrost structure and defrost method of a dehumidifier
  • Defrost structure and defrost method of a dehumidifier
  • Defrost structure and defrost method of a dehumidifier

Examples

Experimental program
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Effect test

Embodiment 1

[0017] Such as figure 1 , 2 , 5, 6, and 7, a defrosting structure of a dehumidifier includes a motor 2, a fan blade or a wind wheel 3, an evaporator 5, a condenser 6 and an evaporator temperature detector 7; the feature of the present invention is also Including air duct 1, the motor 2, fan blade or wind wheel 3, evaporator 5, condenser 6 and evaporator temperature detector 7 are arranged in the air duct 1, the motor 2 is a reverse motor, and the motor 2. A small system composed of wind blades or wind wheels 3 is located on one side of the evaporator 5 and the condenser 6 . When working, all the air flowing through the evaporator 5 flows through the condenser 6 again, and when it is reversed, all the air flowing through the condenser 6 flows through the evaporator 5, and there is no other air supplement or its own air leaking out. In any state, the air flowing through the evaporator 5 and the condenser 6 is consistent; there is only one motor 2 in the air duct 1, and the mot...

Embodiment 2

[0022] Such as image 3 , 4 As shown, the others are the same as the first embodiment, the difference is that the small system composed of the motor 2 , the wind blade or the wind wheel 3 is located between the evaporator 5 and the condenser 6 . The defrosting mode and working principle are the same as those in Embodiment 1, and will not be described in detail here.

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Abstract

The invention relates to a defrosting structure and a defrosting mode for a dehumidifier. The defrosting structure comprises a motor, a fan blade or a wind wheel, an evaporator, a condenser and an evaporator temperature detector; and the defrosting structure is characterized by also comprising an air flue, wherein the motor, the fan blade or the wind wheel, the evaporator, the condenser and the evaporator temperature detector are arranged in the air flue; the motor is a reverse motor; and a small system consisting of the motor and the fan blade or the wind wheel is positioned on one sides of the evaporator and the condenser or is positioned between the evaporator and the condenser. The defrosting mode is that: the surface temperature of the evaporator is monitored through the evaporator temperature detector so as to control the forward / reverse rotation of the motor; when the surface temperature Te of the evaporator detected by the evaporator temperature detector is less than or equal to Ts1 DEG C, timing is started, the reverse motor acts and reversely rotates after t1 time, and defrosting starts; and when the surface temperature Te of the evaporator detected by the evaporator temperature detector is more than or equal to Ts2 DEG C, the reverse motor returns to forward operation after t2 time, and the whole machine restarts to normally dehumidify. The defrosting structure has the advantages of simple structure, low cost, short defrosting time, high efficiency and the like.

Description

technical field [0001] The invention relates to a defrosting structure and a defrosting mode of a dehumidifier, which belongs to the improvement of the defrosting structure of the dehumidifier. Background technique [0002] The defrosting structure and method of existing dehumidifiers are as follows: detect the surface temperature of the evaporator, and perform defrosting action when the temperature is lower than a certain value: the compressor stops, the fan continues to run, and the ambient air flows through the surface of the evaporator to heat. So as to achieve the purpose of defrosting. However, the temperature difference between the ambient air and the surface of the evaporator is not high, resulting in a long defrosting time, especially in a medium-low temperature environment, the defrosting time of the whole machine is very slow, the dehumidification efficiency of the dehumidifier is reduced, and the compressor is frequently started and stopped, which affects Compre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B47/02
Inventor 邓秦波邓海钊林军国
Owner MIDEA GRP CO LTD