Refrigeration anti-freezing protection control method and device for air conditioner and air conditioner

A protection control and anti-freezing technology is applied in the field of devices and air conditioners, and the refrigeration and anti-freezing protection control methods of air conditioners can solve problems such as affecting the normal use of the air conditioner by users, shortening the service life of the compressor, and frequently starting and stopping the compressor. , to achieve the effect of improving judgment accuracy, improving accuracy and saving energy consumption

Active Publication Date: 2020-02-14
NINGBO AUX ELECTRIC
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Problems solved by technology

However, this protection measure will easily lead to frequent start and stop of the compressor, shorten

Method used

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  • Refrigeration anti-freezing protection control method and device for air conditioner and air conditioner
  • Refrigeration anti-freezing protection control method and device for air conditioner and air conditioner
  • Refrigeration anti-freezing protection control method and device for air conditioner and air conditioner

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[0038] It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other if there is no conflict.

[0039] In addition, if the following descriptions involve "first", "second", etc., the descriptions of "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance Sexually or implicitly indicate the number of technical features indicated. In addition, the terms "include", "have" and any of their variations are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to the clearly listed Those steps or units may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or equipment.

[0040] At present, when the air conditioner is used in some special occasions, such as when...

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Abstract

The invention provides a refrigeration anti-freezing protection control method and device for an air conditioner and the air conditioner. The control method comprises the following steps that after the air conditioner is started and is subjected to refrigeration operation, the temperature of an inner disk is acquired; whether the condition of entering an anti-freezing protection mode is met or notis judged according to the temperature of the inner disc; and if the condition of entering the anti-freezing protection mode is met, the air conditioner enters the anti-freezing protection mode, andthe operation state of an inner fan, a bypass control valve and a compressor is controlled according to the temperature of the inner disk, the exhaust temperature of the compressor of the air conditioner and a current wind gear of the inner fan of the air conditioner after the air conditioner enters the anti-freezing protection mode so as to prevent an indoor heat exchanger from freezing, whereinthe bypass control valve is arranged between the indoor heat exchanger and an outdoor heat exchanger. According to the refrigeration anti-freezing protection control method for the air conditioner, the evaporation temperature is improved through the adjustment of the air conditioner so as to achieve the defrosting purpose of an inner machine, frequent restart of the compressor is avoided, the pressure reduction and defrosting effects of the air conditioner are achieved.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, in particular to an air conditioner refrigeration anti-freezing protection control method and device and an air conditioner. Background technique [0002] At present, when the air conditioner is still running for refrigeration when the ambient temperature is low, or the low pressure is too low due to system problems, and the evaporator is frozen, it usually stops running for protection. The existing protection measures are generally to stop the compressor and wait for the evaporator to heat up and then start it automatically. However, this protection measure is likely to cause frequent start and stop of the compressor, shorten the overall service life of the compressor, and affect the normal use of the air conditioner by the user. Contents of the invention [0003] The problem to be solved by the invention is: how to avoid the situation that the compressor frequently starts an...

Claims

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Application Information

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IPC IPC(8): F24F11/43F24F11/64F24F11/65F24F11/86F24F11/88F24F110/10F24F140/20
CPCF24F11/43F24F11/64F24F11/65F24F11/86F24F11/88F24F2110/10F24F2140/20
Inventor 易忠衍王义祥王成
Owner NINGBO AUX ELECTRIC
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