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Control method and device for air-conditioner defrosting and air conditioner

A control method and air-conditioning technology, which is applied in the field of air-conditioning defrosting, can solve the problems of incomplete defrosting, rough judgment methods, and affecting the heating performance of air-conditioning, achieve good defrosting effect, reduce the aggravated influence of frosting degree, and improve The effect of control precision

Active Publication Date: 2019-11-19
WUHAN HAIER ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Embodiments of the present disclosure provide a control method and device for defrosting an air conditioner, and an air conditioner to solve the problem that the method of judging whether to exit the defrosting mode in the related art is too rough, and it is easy for the air conditioner to exit the defrosting mode in advance and cause defrosting failure. Complete, or technical problems that affect the normal heating performance of the air conditioner by continuing to run the defrost mode after the defrost is complete

Method used

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Embodiment Construction

[0026] In order to understand the characteristics and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present disclosure. In the following technical description, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.

[0027] figure 1 It is a schematic flowchart of a control method for air conditioner defrosting provided by an embodiment of the present disclosure.

[0028] An embodiment of the present disclosure provides a contr...

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Abstract

The invention relates to the technical field of air-conditioner defrosting and discloses a control method for the air-conditioner defrosting. The control method comprises the steps that under the situation of an air conditioner needing to be defrosted, the running rotating speed of an outdoor air fan and / or an indoor air fan of the air conditioner is controlled to be reduced; the outdoor coil pipetemperature, the refrigerant liquid outlet temperature and the upper-portion shell temperature of outdoor heat exchangers are obtained; and under the situation of the outdoor coil pipe temperature, the refrigerant liquid outlet temperature and the upper-portion shell temperature meeting the defrosting quitting condition, reducing of the running rotating speed of the outdoor air fan and / or the indoor air fan is controlled to be stopped. According to the control method for the air-conditioner defrosting, the opportunity for the air conditioner quitting the defrosting is judged synthetically utilizing multiple temperature parameters of the outdoor heat exchangers, so that the control accuracy of controlling the air conditioner to quit the defrosting can be effectively improved; and by meansof adjusting operations on the indoor air fan and the outdoor air fan, the heat exchange rate between the heat exchangers corresponding to the indoor air fan and the outdoor air fan respectively and the external environment is changed, and the increasing influence of the temperature environment on the frosting degree is reduced. The invention further discloses a control device for the air-conditioner defrosting and the air conditioner.

Description

technical field [0001] The present application relates to the technical field of air conditioner defrosting, for example, to a control method and device for air conditioner defrosting, and an air conditioner. Background technique [0002] At present, most of the mainstream models of air conditioners have the heat exchange function of cooling and heating. Increase the temperature of the indoor environment; during the heating process of the air conditioner, the outdoor heat exchanger of the outdoor unit acts as an evaporator that absorbs heat from the outdoor environment. Affected by the temperature and humidity of the outdoor environment, the outdoor heat exchanger It is easy to condense more frost on the heater, and when the frost accumulates to a certain thickness, the heating capacity of the air conditioner will become lower and lower. Therefore, in order to ensure the heating effect and avoid excessive frost condensation, it is necessary to The outdoor heat exchanger is ...

Claims

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Application Information

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IPC IPC(8): F24F11/42F24F11/64F24F11/77F24F11/871F25B47/02F24F140/20
CPCF24F11/42F24F11/64F24F11/77F24F11/871F25B47/02F24F2110/12F24F2140/20F25B2347/02F25B2500/31Y02B30/70
Inventor 许文明罗荣邦
Owner WUHAN HAIER ELECTRONICS CO LTD
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