Outdoor unit defrosting control method, device and equipment

Abstract

The present invention relates to outdoor machine defrosting control method, device and equipment, and belongs to the field of outdoor machine defrosting control technical field. The method comprises the following steps of acquiring operation parameters and running modes of indoor machines in different running states; obtaining operating defrosting factors of the indoor machines in different running states according to the operation parameters and the running modes of the indoor machines in different running states; obtaining a whole operating defrosting factor according to the operating defrosting factors of the indoor machines in different running states; and control switch-on and switch-off states of the indoor machine defrosting according to changing conditions of the whole operating defrosting factor. According to the outdoor machine defrosting control method, device and equipment, judgement of switch-on and switch-off states of defrosting becomes singularized and simplified, and the precision of switch-on and switch-off states of defrosting can also be guaranteed, thus being better applied to air conditioners of various types.

Description

technical field [0001] The application belongs to the technical field of outdoor unit defrosting control, and in particular relates to an outdoor unit defrosting control method, device and equipment. Background technique [0002] During the heating process of the air conditioner, due to the low outdoor temperature, frost will form on the surface of the heat exchanger of the outdoor unit. Frost formation will lead to deterioration of the heat exchange effect, resulting in a decrease in the heating capacity of the indoor mechanism and affecting the user experience. In order to solve the problem of frosting on the surface of the heat exchanger of the outdoor unit during the heating process, the air conditioners on the market have an automatic defrosting function during the heating process. [0003] In the current defrosting control logic, whether it is an entry condition or an exit condition, in order to achieve higher precision control, a variety of limited judgments are used,...

AI Technical Summary

Problems solved by technology

Although the more limited judgments, the higher the precision of defrosting entry or exit control, but it is more complicated for system processing

Taking the multi-connected air conditioner as an example, the outdoor unit of the multi-connected air conditioner is equipped with multiple indoor units, and the multiple indoor units are installed in different rooms one by one. The heating temperature and wind gear of the system may be different, so that the status of each indoor unit in operation may be different, which further increases the complexity of controlling the entry or exit of defrosting through multiple limit judgments for multi-connected air conditioners.

[0004] In the related technology of air conditioner defrosting entry or exit control, there is also a very simple control method, that is, during the heating process of the air conditioner, defrosting is performed at regular intervals. This defrosting control method has a single defrosting condition and is suitable for various types of air conditioners. , for example, multi-connected air conditioners and single-unit air conditioners can be well applied, but the problem is that the control accuracy is greatly reduced, and it is often prone to the problem of not defrosting with frost or defrosting without frost

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