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Air conditioner and anti-freeze control method thereof

A control method and anti-freezing technology, applied in heating and ventilation control systems, heating and ventilation safety systems, mechanical equipment, etc., can solve the problem of insensitivity to trigger anti-freezing protection, improve anti-freezing effect, and ensure safe and stable operation Effect

Active Publication Date: 2020-05-22
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an air conditioner and its anti-freezing method, aiming to solve the disadvantage of insensitive trigger anti-freezing protection caused by using a single temperature sensor to sense the coil temperature in the existing air conditioner

Method used

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  • Air conditioner and anti-freeze control method thereof
  • Air conditioner and anti-freeze control method thereof
  • Air conditioner and anti-freeze control method thereof

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Embodiment Construction

[0036] The following description and drawings illustrate specific embodiments of the invention sufficiently to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. The scope of embodiments of the present invention includes the full scope of the claims, and all available equivalents of the claims. Herein, various embodiments may be referred to individually or collectively by the term "invention", which is for convenience only and is not intended to automatically limit the scope of this application if in fact more than one invention is disclosed. A single invention or inventive concept. Herein, relational terms such...

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Abstract

The invention discloses an air conditioner and an anti-freeze control method thereof and belongs to the technical field of air conditioners. The control method comprises the steps of acquiring parameter information of the air conditioner operating in a refrigeration mode; controlling the air conditioner to operate in an anti-freeze mode within a set period in response to meeting the preset anti-freeze condition, wherein the set period comprises a plurality of first anti-freeze processes executed in sequence and a second anti-freeze process at the ending of the sequence, wherein the second operation time duration of the second anti-freeze process is the sum of the first operation time durations of the first anti-freeze processes and the compensated time duration, and the compensated time duration is determined according to a set wind speed level range where the rotating speed of an inner fan is located. Through the air conditioner and the anti-freeze control method thereof provided by the invention, when it is determined that the air conditioner meets the anti-freeze condition, the air conditioner can operate in the anti-freeze mode within the set period, and the second defrosting process within the prolonged time duration can be executed to improve the anti-freeze effect of the air conditioner on an indoor heat exchanger after the first anti-freeze processes are executed repeatedly.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner and its anti-freezing control method. Background technique [0002] When the air conditioner is in cooling or dehumidification operation, due to the temperature angle of the refrigerant entering the indoor heat exchanger of the indoor unit, the outer surface of the indoor heat exchanger is always at a low temperature. When the indoor air flows through the indoor heat exchanger, The water vapor in the air is easy to condense into dew or even frost on the indoor heat exchanger, causing the indoor heat exchanger of the indoor unit to freeze, which in turn affects the cooling effect of the air conditioner, making its cooling or dehumidification capacity weaker and weaker. [0003] In view of the freezing phenomenon of the indoor heat exchanger of the air conditioner, the anti-freezing implementation method mainly adopted by the existing air conditioner is ...

Claims

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Application Information

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IPC IPC(8): F24F11/43F24F11/64F24F11/65F24F140/20F24F140/50
CPCF24F11/43F24F11/64F24F11/65F24F2140/20F24F2140/50
Inventor 许文明
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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