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Low-temperature dehumidifying control method and device and air conditioner

A control method and air conditioner technology, which are applied in heating and ventilation control systems, heating methods, space heating and ventilation, etc., can solve the problems of poor dehumidification effect, easy access to anti-freezing protection, etc. Prevent misjudgment and missed judgment and detect accurate effect

Active Publication Date: 2020-02-07
NINGBO AUX ELECTRIC
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Problems solved by technology

[0004] The problem solved by the present invention is that when the air conditioner in the prior art is turned on in the dehumidification mode under low temperature conditions, it is easy to frequently enter the anti-freezing protection, and the dehumidification effect is not good

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Embodiment Construction

[0028] Huinantian is the name of a weather phenomenon in South my country. It usually refers to the phenomenon that the temperature starts to warm up and the humidity starts to rise every spring. South China has a typical oceanic subtropical monsoon climate. Therefore, from March to April every year, the south wind blowing from the South China Sea brings warm and humid air and meets the cold air flow from the northern part of mainland China. A stationary front is formed, making the weather in southern China uncertain and very humid.

[0029] During the period of returning to the southern climate, people mostly use air conditioners for dehumidification. After turning on the dehumidification mode for a period of time, the temperature of the indoor coil will drop. However, the indoor and outdoor temperatures are low, so that the temperature of the indoor coil is lowered to a greater extent, and it enters antifreeze protection many times.

[0030] As shown in Table 1, when the in...

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Abstract

The invention provides a low-temperature dehumidifying control method and device and an air conditioner, and relates to the technical field of air conditioners. The method includes the steps of detecting the current outdoor environment temperature and the indoor coiled pipe temperature during operation in a dehumidifying mode, recording the operation time duration of a compressor and the operationtime duration of an outer draught fan, and controlling the on and off of the outer draught fan according to the outdoor environment temperature, the indoor coiled pipe temperature, the operation timeduration of the compressor and the operation time duration of the outer draught fan. By means of the low-temperature dehumidifying control method and device and the air conditioner, the abnormity ofentering a protection program at a low temperature can be solved when the dehumidifying mode is started at a low temperature, the normal operation of the dehumidifying mode of the air conditioner is ensured, the dehumidifying amount at a low temperature is improved, and the aim of rapid dehumidifying is realized.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a low temperature dehumidification control method, a control device and an air conditioner. Background technique [0002] With the development of air-conditioning technology, people rely more and more on air-conditioning for temperature and moderate control to improve environmental comfort. When the weather is returning to the south, the temperature of the outdoor environment is low and the humidity is high. When the air conditioner is turned on in the dehumidification mode under this condition, the ambient temperature outside and indoors are both low. After the air conditioner has been running for a period of time, it will cause indoor The temperature of the coil drops, and it is easy to meet the entry conditions of the anti-freeze protection, resulting in frequent start and stop of the compressor, which affects the dehumidification effect of the air conditioner, and fr...

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Application Information

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IPC IPC(8): F24F11/61F24F11/871F24F11/65F24F11/64
CPCF24F11/61F24F11/64F24F11/65F24F11/871
Inventor 李贺周保川王娇娇王伟涛
Owner NINGBO AUX ELECTRIC
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