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Antifreeze control method and device for air conditioning unit

A technology of air conditioning unit and control method, which is applied in the direction of space heating and ventilation, heating and ventilation control system, heating method, etc., can solve the problems of reducing the service life of compressors, and achieve the effect of avoiding the reduction

Active Publication Date: 2017-06-06
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The main purpose of the present invention is to provide an antifreeze control method and device for an air conditioning unit to solve the problem in the prior art that the service life of the compressor is reduced due to antifreeze protection

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  • Antifreeze control method and device for air conditioning unit
  • Antifreeze control method and device for air conditioning unit
  • Antifreeze control method and device for air conditioning unit

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Embodiment Construction

[0021] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0022] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0023] It should be noted that the terms "fir...

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Abstract

The invention discloses an anti-freezing control method and device of an air conditioning unit. The anti-freezing control method of the air conditioning unit comprises the following steps: detecting whether the air conditioning unit meets an anti-freezing start-up condition in a state when the air conditioning unit is shut down and an automatic anti-freezing function is started up; if detection shows that the anti-freezing start-up condition is met by the air conditioning unit, acquiring accumulative operation time of a plurality of compressors respectively; determining the compressor with the shortest accumulative operation time; controlling the compressor with the shortest accumulative operation time to start and entering anti-freezing protection. Through the method and the device, an effect of avoiding reduction in service life of the compressor due to anti-freezing protection is achieved.

Description

technical field [0001] The invention relates to the field of air conditioning, in particular to an antifreezing control method and device for an air conditioning unit. Background technique [0002] At present, air-conditioning units usually have an anti-freezing function, which is used to protect the air-conditioning unit from freezing and damaging the air-conditioning unit when the temperature is very low. [0003] However, the inventors have found that, for multi-compressor or multi-system air-conditioning units, in the case of shutting down, if the anti-freezing conditions are met, then the multi-compressors or multi-systems are simultaneously turned on for anti-freezing, and the water temperature rises quickly so the anti-freezing process ends quickly. That is, the compressor turns off shortly after it is turned on. On the one hand, this anti-freezing control method causes the compressor of the system to start and stop frequently; on the other hand, it increases the tot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/02
CPCF24F11/30F24F11/62
Inventor 刘萍陈万兴秦建军程建军任鹏谷月明
Owner GREE ELECTRIC APPLIANCES INC
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