Abstract: An air conditioner includes an outdoor unit, a plurality of indoor units, and a controller. The outdoor unit includes a first throttling device. The indoor unit includes a second throttling device. The controller is configured to: regulate an opening degree of the first throttling device, so that a first supercooling temperature is within a first supercooling temperature range in a case where the air conditioner is in a cooling mode; regulate opening degrees of a plurality of second throttling devices in a case where the air conditioner is in a heating mode, so that a plurality of second supercooling temperatures are each within a second supercooling temperature range, and an absolute value of a difference between each of the plurality of second supercooling temperatures and an average value of the plurality of second supercooling temperatures is less than or equal to a first threshold.

Abstract: An air conditioner and a method for calculating an operating parameter of an indoor unit are provided. The air conditioner includes an outdoor unit, an indoor unit, and a controller. The controller is configured to: in a case where the air conditioner is in a cooling state, determine an operating parameter of the indoor unit in a second cooling state according to a heat exchange area, a heat exchange coefficient, and a heat exchange temperature difference of an indoor heat exchanger; and determine an operating parameter of the indoor unit in a first cooling state according to a superheat degree of an outlet of the indoor heat exchanger in the first cooling state, a superheat degree of the outlet of the indoor heat exchanger in the second cooling state, and the operating parameter of the indoor unit in the second cooling state.

Abstract: An air conditioning system includes an indoor unit, an outdoor unit, a first expansion valve, a second expansion valve and a controller. The controller is configured to: control the air conditioning system to be switched to a cooling mode, control an indoor expansion valve and the second expansion valve to be closed and control the first expansion valve to be opened when a refrigerant leakage occurring indoors is obtained; control a compressor to be stopped and the first expansion valve to be closed, if the compressor satisfies a first preset condition; control the compressor to be started and the first expansion valve and the indoor expansion valve to be opened, if the refrigerant leakage continues indoors after controlling the compressor to be stopped; and control the compressor to be stopped and the first expansion valve to be closed, if the compressor again satisfies the first preset condition.

Abstract: An air conditioning system includes an indoor electronic expansion valve, and at least one liquid phase branch pipe. Each liquid phase branch pipe includes a first flow pipe and a second flow pipe. An end of the second flow pipe is communicated to an end of the first flow pipe, and another end of the second flow pipe is communicated to the indoor electronic expansion valve. The liquid phase branch pipe is configured to branch or converge a refrigerant flowing through the liquid phase branch pipe. The first flow pipe includes at least one mixing member, each mixing member has a plurality of first through holes, and the plurality of first through holes are used to communicate two ends of the first flow pipe.

Abstract: An air conditioner includes an outdoor unit, a plurality of indoor units, and a controller. The outdoor unit includes a first throttling device. The indoor unit includes a second throttling device. The controller is configured to: regulate an opening degree of the first throttling device, so that a first supercooling temperature is within a first supercooling temperature range in a case where the air conditioner is in a cooling mode; regulate opening degrees of a plurality of second throttling devices in a case where the air conditioner is in a heating mode, so that a plurality of second supercooling temperatures are each within a second supercooling temperature range, and an absolute value of a difference between each of the plurality of second supercooling temperatures and an average value of the plurality of second supercooling temperatures is less than or equal to a first threshold.

Abstract: An air conditioner and a method for calculating an operating parameter of an indoor unit are provided. The air conditioner includes an outdoor unit, an indoor unit, and a controller. The controller is configured to: in a case where the air conditioner is in a cooling state, determine an operating parameter of the indoor unit in a second cooling state according to a heat exchange area, a heat exchange coefficient, and a heat exchange temperature difference of an indoor heat exchanger; and determine an operating parameter of the indoor unit in a first cooling state according to a superheat degree of an outlet of the indoor heat exchanger in the first cooling state, a superheat degree of the outlet of the indoor heat exchanger in the second cooling state, and the operating parameter of the indoor unit in the second cooling state.