Multi-connected air conditioner system and its defrosting control method and defrosting control device
A control method and technology of a control device, which are applied to air-conditioning systems, space heating and ventilation, heating and ventilation control systems, etc., can solve the problems of unclean defrosting of outdoor heat exchangers, improve the reliability of defrosting, ensure Full defrosting effect
Active Publication Date: 2020-04-17
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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Problems solved by technology
[0004] For this reason, an object of the present invention is to propose a new defrosting control method for a multi-connected air conditioner system, which solves the problem that the defrosting of the outdoor heat exchanger may not be clean when the actual number of indoor units installed is small, Improved defrost reliability of multi-split air conditioner systems in various installation situations
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[0036] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0037] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.
[0038] figure 1 A schematic flow chart showing a defrosting control method for a multi-connected air conditioner system according to an embodiment of the present invention is shown.
[0039] Such a...
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The invention provides a multi-split air conditioner system and a defrosting control method and a defrosting control device of the multi-split air conditioner system. The defrosting control method comprises the steps that whether the multi-split air conditioner system needs to run in a defrosting manner or not is detected, and the number of indoor units in the multi-split air conditioner system is detected; when it is detected that the multi-split air conditioner system needs to run in the defrosting manner and the number of the indoor units is larger than or equal to the preset value, the multi-split air conditioner system is controlled to start the defrosting mode, and a compressor is controlled to run with the first frequency; when it is detected that the multi-split air conditioner system needs to run in the defrosting manner and the number of the indoor units is smaller than the preset value, the multi-split air conditioner system is controlled to start the defrosting mode, and the compressor is controlled to run with the second frequency larger than the first frequency. The multi-split air conditioner system and the defrosting control method and the defrosting control device of the multi-split air conditioner system solve the problem that due to the fact that the actual installing number of the indoor units is small, defrosting of an outdoor heat exchanger is possibly not thorough, and defrosting reliability of the multi-split air conditioner system under various installing situations is improved.
Description
technical field [0001] The present invention relates to the technical field of air conditioners, in particular to a defrosting control method for a multi-connected air conditioner system, a defrosting control device for a multi-connected air conditioner system, and a multi-connected air conditioner system. Background technique [0002] Multi-connected air conditioner systems are usually equipped with multiple indoor units, and the defrosting scheme of the system is also determined according to the configuration of multiple indoor units during product development and testing. However, in some special application scenarios, the actual installation of a multi-connected air conditioner system may only have one-to-one or one-to-two configurations with few indoor units. If the defrosting scheme is used for defrosting control, there may be a hidden danger of unclean defrosting on the outdoor heat exchanger. Contents of the invention [0003] The present invention aims to solve a...
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IPC IPC(8): F24F3/06F24F11/42F24F11/64
CPCF24F3/065F24F11/30F24F11/41F24F11/62F24F11/64
Inventor 黄文许永锋熊美兵郭剑杨元涛
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD