Control method of multi-split air conditioner, multi-split air conditioner and computer storage medium

Abstract

The invention discloses a control method of a multi-split air conditioner. The control method comprises the following steps: when an oil return starting condition is met, obtaining a first indoor unit which is not in a wind-feeling-free mode in the multi-split air conditioner; obtaining the target opening degree of a first electronic expansion valve of the first indoor unit; and adjusting the first electronic expansion valve to the target opening degree so as to return oil, wherein the target opening degree is larger than the first preset opening degree corresponding to the wind-feeling-free mode. When the multi-split air conditioner needs oil return, the opening degree of the indoor unit which is not in the wind-feeling-free state is adjusted to be large, main oil return is conducted through an indoor unit which is not in the wind-feeling-free state, and therefore even if the opening degree of the indoor unit which is not in the wind-feeling-free state is still small, oil return is little or oil return does not exist, the oil return effect of the whole multi-split air conditioner can be guaranteed, and meanwhile, the wind-feeling-free effect of the wind-feeling-free indoor unit is good, and the user comfort of the action space of the wind-feeling-free indoor unit during oil return of the multi-split air conditioner is improved.

Description

Technical field [0001] The present invention relates to the field of multi-machine technologies, and more particularly to a multi-machine control method, a multi-haircut, and a computer storage medium. Background technique [0002] When the multilayer's indoor unit is in the wind mode, if there is a multi-hairclant demand, the indoor engine electrical expansion valve opening degree required for the unheferent mode is usually small, and the indoor unit electrical expansion valve required for the oil return is opened. The degree is usually large, and therefore, it is currently exiting the windless mode to perform oil inferential control of the various indoor units of the multi-machine. It will re-enter the wind mode, which will greatly reduce multiple machines User comfort time. [0003] The above content is only used to assist in understanding the technical solution of the present invention, and does not represent the above content is prior art. Inventive content [0004] A prima...

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Problems solved by technology

[0002] When the multi-connected indoor unit is in the windless mode, if the multi-connected unit has oil return demand, the electronic expansion valve opening degree of the indoor unit required by the windless mode is usually small, and the electronic expansion valve of the indoor unit required for oil return is opened. Therefore, at present, exit the no-wind sensing mode first to control the oil return of each indoor unit of the multi-connection unit, and then re-enter the no-wind-sensing mode after the oil return is completed, which will greatly reduce the return of the multi-connection unit. User comfort when oiling

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