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Air-conditioner and defrosting method and defrosting device thereof

An air conditioner and controller technology, applied in the direction of space heating and ventilation, heating methods, refrigeration and liquefaction, etc., can solve the problems of reducing the service life of the unit and general defrosting effect, so as to shorten the defrosting cycle and avoid frequent defrosting Effect of defrosting, good defrosting effect

Active Publication Date: 2017-03-22
CHONGQING MIDEA GENERAL REFRIGERATING EQUIP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inventors of the present application researched and found in the process of implementing the present invention: in severe frosting environment, the defrosting effect of this conventional defrosting method is average, and it is easy to cause unit protection and reduce the service life of the unit

Method used

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  • Air-conditioner and defrosting method and defrosting device thereof
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  • Air-conditioner and defrosting method and defrosting device thereof

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Embodiment Construction

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0034] Such as figure 1 The shown defrosting method 100 of an air conditioner includes:

[0035] 110. After the compressor is started, record the time T1 of compressor operation.

[0036] Specifically, in this embodiment, after the compressor is started, a timer can be started to record the running time T1 of the compressor, and the timer needs to be cleared before timing, and other timers can also be selected to record the running time of the...

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Abstract

The invention relates to an air-conditioner and a defrosting method and a defrosting device thereof. The defrosting method comprises the steps that after starting of a compressor is completed, running time T1 of the compressor is recorded; when the time T1 is equal to preset time T, a suction pressure value or an evaporation pressure value is detected; when the suction pressure value or the evaporation pressure value is smaller than a preset pressure value, a running pressure specific value of the air-conditioner and continuous time T2 of the air-conditioner are detected; when the pressure specific value and / or the continuous time T2 and a preset pressure specific value meet the defrosting condition, the air-conditioner is controlled to carry out defrosting, thus, frequent defrosting can be avoided, the period of carrying out defrosting in a severe frosting environment can be shortened, intelligent defrosting can be achieved effectively, the good defrosting effect is achieved, a unit can be protected, and reliable running of the unit can be achieved.

Description

Technical field [0001] The present invention relates to the technical field of air conditioners, in particular to an air conditioner and its defrosting method and defrosting device. Background technique [0002] With the popularity of dual air-conditioning systems, central air-conditioning is not only turned on in summer for cooling operations, but also turned on for heating in winter. Therefore, the problem of frosting occurs. Because the outdoor temperature is very low in winter, it is easy to frost the air conditioner. Once frost forms, it will affect the operating performance of the air conditioner. Severe frost will also cause the unit to protect and even reduce the service life. Therefore, the defrosting of central air conditioning is critical. Among them, the more common ones are washing with water, heating with hot air circulation to defrost, and heating with electric heating elements. [0003] Under normal circumstances, the more commonly used cyclic heating defrost met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00F25B47/02
CPCF24F11/30F24F11/42F24F11/62F24F11/64F25B47/02
Inventor 刘雅岚梁涛杨崇银
Owner CHONGQING MIDEA GENERAL REFRIGERATING EQUIP
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