Multi-split system, defrosting control method and system and computer readable storage medium

A multi-connection system and control method technology, applied in the field of air conditioning, can solve the problems of poor user experience, poor indoor heating effect, slow defrosting speed, etc., to improve heat exchange efficiency, improve user experience, and speed up defrosting. Effect

CN111043714AActive Publication Date: 2020-04-21NINGBO AUX ELECTRIC
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2020-04-21

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Abstract

The invention provides a multi-split air conditioning system, a defrosting control method and system, and a computer readable storage medium. The multi-split air conditioning system comprises an innerair duct communicated with the indoor, an outer air duct communicated with the outdoor, an air outlet branch part provided with two air outlets which are communicated with the inner air duct and theouter air duct respectively, and electric heating equipment arranged at the air outlet communicated with the inner air duct. When the multi-split system enters a defrosting mode, an indoor unit fan operates at a set rotating speed, cold air passing through an indoor side heat exchanger is divided into two parts at the air outlet branch part, one part of the cold air enters the outer air duct and flows to the outdoor, and the other part of the cold air enters the inner air duct and flows to the indoor after being heated by the electric heating equipment. In the defrosting process, the indoor unit fan operates, and the defrosting time is shortened; and meanwhile, hot air can be blown to the indoor side, and the use comfort and experience of a user are greatly improved.
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Description

technical field

[0001] The present invention relates to the technical field of air conditioning, in particular to a multi-connected system, a defrosting control method, a system, and a computer-readable storage medium. Background technique

[0002] The multi-line system is a refrigeration cycle system composed of one or more outdoor units connected to multiple indoor units. When the multi-split system operates in heating mode in winter, due to the low outdoor temperature and the heat exchanger of the outdoor unit acts as an evaporator to release cooling capacity, the surface of the heat exchanger of the outdoor unit gradually forms frost, and the heat exchange effect on the outside will deteriorate. As the running time increases, the frost layer accumulates thicker and thicker, which leads to worsening heat exchange effect of the outdoor unit, and correspondingly worse heating effect of the indoor unit, which seriously affects the performance of the unit. Therefore, it is n...

Examples

Embodiment Construction

[0044] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0045] Certain embodiments of the invention will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments are shown. Indeed, various embodiments of the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this invention will satisfy applicable legal requirements.

[0046] In the embodiment of the present invention, a multi-connected system is provided, taking the indoor unit as an air duct unit as an example, such as figure 1 , 2 As shown, it includes an inner air duct 1 , an air outlet branch 2 , and an outer air duct 3 . The air outlet branch 2 has two air ...