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Control method and control device for frosting prevention, and air conditioner

A control method and anti-frost technology, which is applied to heating and ventilation control systems, applications, refrigerators, etc., can solve problems such as uneven distribution and inability to effectively prevent frosting, so as to prevent frosting and improve accuracy Effect

Active Publication Date: 2018-01-09
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

[0003] Embodiments of the present invention provide a control method and device for anti-frost, and an air conditioner, aiming to solve the problem in the prior art that the phenomenon of frost cannot be effectively prevented when the indoor heat exchanger has uneven distribution

Method used

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  • Control method and control device for frosting prevention, and air conditioner
  • Control method and control device for frosting prevention, and air conditioner
  • Control method and control device for frosting prevention, and air conditioner

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Embodiment Construction

[0031] The following description and drawings illustrate specific embodiments of the invention sufficiently to enable those skilled in the art to practice them. 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 as first and second etc. are used only to distinguish one entity or operation from another with...

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PUM

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Abstract

The invention discloses a control method for frosting prevention, and belongs to the technical field of air conditioners. The method comprises the following steps: acquiring the temperatures of two ormore indoor coiled pipe branches under a refrigeration mode; and adjusting the working frequency of a compressor according to the temperatures of the two or more indoor coiled pipe branches. According to the control method disclosed by the invention, the temperatures of the plurality of indoor coiled pipe branches are acquired, and the working frequency of the compressor is determined in combination with the temperatures of the plurality of indoor coiled pipe branches, so that adjustment accuracy for the working frequency of the compressor is improved, and the generation of a frosting phenomenon can be effectively prevented in the case of non-uniform flow distribution of an indoor heat exchanger. The invention further discloses a control device for frosting prevention, and an air conditioner.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a control method and device for preventing frosting, and an air conditioner. Background technique [0002] The prior art discloses a control method for preventing frosting of an indoor heat exchanger during cooling operation of an inverter air conditioner, including: during cooling operation, real-time detection of the coil temperature Tm of the indoor heat exchanger as a basis for judgment; The control process is that after the inverter compressor is started, Tm will gradually decrease. When Tm drops to 8-9°C, the inverter compressor will slowly increase the frequency at a speed of 10-15s / Hz; at this time, Tm will continue to decrease. When Tm drops to between 3 and 5°C, define the current operating frequency of the variable frequency compressor as the highest frequency, and maintain the highest frequency for stable operation, so that Tm is also stable in the optimal te...

Claims

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Application Information

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IPC IPC(8): F24F11/00F25B49/02F25B47/00
Inventor 徐菲菲李敬胜
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD