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Control method and device for air conditioner defrosting, air conditioner

A control method and air-conditioning technology, which are applied to household refrigeration devices, defrosting, heating and ventilation control systems, etc., can solve the problems of affecting the heating performance of air-conditioning, incomplete defrosting, and rough judgment methods, and improve the defrosting efficiency. , the effect of reducing adverse effects and improving control accuracy

Active Publication Date: 2022-04-19
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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  • Control method and device for air conditioner defrosting, air conditioner
  • Control method and device for air conditioner defrosting, air conditioner

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Embodiment Construction

[0025] 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.

[0026] figure 1 It is a schematic flowchart of a control method for air conditioner defrosting provided by an embodiment of the present disclosure.

[0027] An embodiment of the present disclosure provides a contr...

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Abstract

The present application relates to the technical field of air conditioner defrosting, and discloses a control method for air conditioner defrosting. The control method includes: when the air conditioner needs to defrost, control to enter the reverse cycle defrosting mode and perform the first heating operation on the refrigerant flowing through the refrigerant outlet pipeline of the outdoor heat exchanger of the air conditioner; obtain the outdoor heat exchanger The difference between the refrigerant inlet liquid temperature and the preset position temperature of the outdoor heat exchanger; when the refrigerant inlet liquid temperature difference and the preset position temperature meet the defrosting exit conditions, the control exits the reverse cycle defrosting mode and stops executing the first - Heating operation. Use the difference between the refrigerant inlet liquid temperature of the outdoor heat exchanger and the preset position temperature to comprehensively judge the timing of the air conditioner exiting defrosting, and improve the control accuracy of controlling the air conditioner exiting defrosting; and through reverse cycle defrosting and convection through the refrigerant outlet pipe The refrigerant of the road is heated to speed up and reduce the adverse effect of frost condensation on the performance of the air conditioner. The application also discloses a control device for defrosting the air conditioner 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 Patents(China)
IPC IPC(8): F24F11/42F24F11/64F25B47/02F25D21/08F24F140/20
CPCF24F11/42F24F11/64F25B47/025F25D21/08F24F2140/20F25B2347/02F25B2500/31
Inventor 许文明罗荣邦
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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