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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 to household refrigeration devices, defrosting, heating and ventilation control systems, etc., can solve problems such as rough judgment methods, affecting the heating performance of air conditioners, and incomplete defrosting, so as to improve heating efficiency, Effects of reducing adverse effects and improving control accuracy

Pending Publication Date: 2019-11-19
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
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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, control is performed to heat refrigerants flowing through refrigerant liquid inlet pipelines and refrigerant liquid outlet pipelines of outdoor heat exchangers of the air conditioner; the refrigerant liquid inlet temperature difference value of the outdoor heat exchangers and the preset position temperature of the outdoor heat exchangers are obtained; and under the situation of the refrigerant liquid inlet temperature difference value and the preset position temperature meeting the defrosting quitting condition, heating 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 these several parameters of the refrigerant liquid inlet temperature difference value and the preset position temperature of the outdoor heat exchangers, so that the control accuracy of controlling the air conditioner to quitthe defrosting can be effectively improved; and by means of heating operations on the refrigerants flowing through the refrigerant liquid inlet pipelines and the refrigerant liquid outlet pipelines, the adverse impact of frost condensation on the air conditioning heating performance 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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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/42F24F11/64F25B47/02F25D21/08F24F140/20
CPCF25B47/02F25B2347/02F25B2500/31F25D21/08F24F11/42F24F11/64F24F2140/20
Inventor 许文明罗荣邦
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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