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Air conditioner outdoor unit defrosting method

An air conditioner room and air conditioner technology, which is applied in the field of air conditioner defrosting, can solve the problems of unfavorable end of defrosting and unusable waste heat of indoor heat exchangers, etc., so as to improve defrosting efficiency, shorten defrosting time, and improve The effect of the overall energy efficiency ratio

Active Publication Date: 2015-12-09
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For the second defrosting method, the indoor fan continues to run when the defrosting starts, and the waste heat of the indoor heat exchanger is not used, so it is not conducive to the faster end of the defrosting

Method used

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  • Air conditioner outdoor unit defrosting method

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Embodiment Construction

[0023] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] In the description of the present invention, it should be noted that unless otherwise specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; directly or indirectly through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

[0025] Such as figure 1 As shown, a kind of air conditioner outdoor unit defrosting method that the embodiment of the present invention provides, comprises the following steps:

[0026] S1. The defrosting starts, and...

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Abstract

The invention relates to the technical field of an air conditioner defrosting and provides an air conditioner outdoor unit defrosting method. When the refrigeration mode is selected to perform defrosting, firstly an indoor fan stops operating to enable residual heat of an indoor heat exchanger to completely act on a refrigerant recycling back; when the temperature of the indoor heat exchanger is reduced to be lower than the indoor temperature, the indoor fan is started, indoor heater air is utilized to conduct convective heating on the indoor heat exchanger, and the indoor fan stops operating to prevent somatosensory cold air enabling human to obviously feel cold from being produced till the temperature of the indoor heat exchanger is reduced to reach a cold air preventing temperature threshold. In the whole defrosting process, the residual heat of the indoor heat exchanger is fully utilized, the indoor air heat is further properly utilized, accordingly the defrosting time is overall shortened, the defrosting efficiency is improved, and the overall energy efficiency ratio of an air conditioner is also improved.

Description

technical field [0001] The invention relates to the technical field of air conditioner defrosting, and in particular provides a method for defrosting an outdoor unit of an air conditioner. Background technique [0002] When the air conditioner is in the heating mode, the outdoor temperature is generally below 10 degrees. Under this low temperature condition, the outdoor unit still needs to absorb heat, and the temperature will drop below 0 degrees, and the surrounding moisture will quickly condense into frost. [0003] If the air conditioner is not defrosted in time after frosting, it is easy to block the passage between the fins and increase the air flow resistance; increase the thermal resistance of the heat exchanger and reduce the heat transfer capacity; the evaporation temperature decreases, the energy efficiency ratio decreases, and the performance of the air conditioner deteriorates until it fails to work normally Work. [0004] At present, the defrosting of the outd...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00
Inventor 蔡国荣
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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