Controlling method and device used for air-conditioners and air-conditioners

Abstract

The invention discloses a controlling method and device used for air-conditioners and air-conditioners. The controlling method comprises the steps of obtaining the set temperatures of the two heat-transferring and air supplying units respectively and an indoor environment temperature, calculating the temperature difference value between every heat-transferring and air supplying unit and the environment temperature, matching the difference value with the preset temperature difference interval and generating results of temperature difference matching; according to the temperature difference value, setting an air-out temperature difference between the two heat-transferring and air supplying units; according to the results of temperature difference matching, adjusting the rotate speed of the draught fan and the opening of the expansion valve which are corresponding to the two heat-transferring and air supplying units, so that an air-out temperature difference between the two heat-transferring and air supplying units can be satisfied. The controlling method used for air-conditioner can adjust the expansion valve and the air speed of the heat-transferring and air supplying units which supply air to various zones, satisfy the different setting temperatures of the heat-transferring and air supplying units, and in the meanwhile, the controlling method avoids excessive air-out difference values during the heat-transferring process, enables the air-supplying process to be more stable, and improves the user experience.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a control method and device for an air conditioner and an air conditioner. Background technique [0002] Most of the air-conditioning products on the market now only have a set of circulation system, in which only a single number of evaporators, condensers, expansion valves and other main components are installed, and air-conditioning functions such as refrigeration and dehumidification need to rely on this circulation system to complete. In the actual use process, the existing air-conditioning products cannot achieve the optimal operation status of multiple functions such as cooling and dehumidification at the same time. The required temperature conditions, when the indoor temperature is low and the humidity is high, it cannot meet the requirements of blowing without cooling and dehumidification, or when the temperature is high and the humidity is high, it cannot quickl...

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Problems solved by technology

[0002] Most of the air-conditioning products on the market now only have a set of circulation system, in which only a single number of evaporators, condensers, expansion valves and other main components are installed, and air-conditioning functions such as refrigeration and dehumidification need to rely on this circulation system to complete. In the actual use process, the existing air-conditioning products cannot achieve the optimal operation status of multiple functions such as cooling and dehumidification at the same time. The required temperature conditions, when the

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