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US 12,595,925 B2Granted
Air conditioning system
AssigneeDaikin Industries, Ltd.
InventorNaotoshi Fujita
Life of this patent
Estimating the term…
Abstract
An air-conditioning system includes an outside air processing device, an air-conditioning device, and a control unit. The outside air processing device adjusts the temperature of outside air taken thereinto, and supplies the outside air to a plurality of indoor spaces. The air-conditioning device includes a plurality of indoor units at least one of which is installed in each of a plurality of target spaces that are some or all of the indoor spaces. The air-conditioning device adjusts the temperatures of air in the target spaces. The control unit adjusts the flow rate of air blown into each target space by the outside air processing device in accordance with an operating state of the at least one of the indoor units to reduce power consumption of the air-conditioning system.
Claims11
An air-conditioning system comprising:
- an outside air processing device configured to adjust a temperature of outside air taken into the outside air processing device and to supply the outside air to a plurality of indoor spaces;
- and
- an air-conditioning device including a plurality of indoor units at least one of which is installed in each of a plurality of target spaces that are some or all of the indoor spaces, the air-conditioning device being configured to adjust temperatures of air in the target spaces,
- the air-conditioning system further comprising a control unit configured to adjust a flow rate of air blown into each target space by the outside air processing device in accordance with an operating state of the at least one of the indoor units to reduce power consumption of the air-conditioning system and control the flow rate of air blown into each target space by the outside air processing device based on a respective load factor for the plurality of indoor units, where at least one of the indoor units is operating, where each load factor of each of the indoor units represents a ratio of a load of the respective indoor unit to a rated capacity of the respective indoor unit, wherein
- if a total airflow rate of the outside air processing device is to be increased, the control unit controls an increment of the flow rate of air blown into one of the target spaces provided with a first indoor unit, among the plurality of indoor units, having a first load factor to be greater than or equal to an increment of the flow rate of air blown into another one of the target spaces provided with a second indoor unit among the plurality of indoor units, having a second load factor lower than the first load factor,
- where the increment of each flow rate of air blown into each target space represents an amount of increase in the flow rate of air blown into the respective target space by the outside air processing device.
3 more elements
An air-conditioning system comprising:
- an outside air processing device configured to adjust a temperature of outside air taken into the outside air processing device and to supply the outside air to a plurality of indoor spaces;
- and
- an air-conditioning device including a plurality of indoor units at least one of which is installed in each of a plurality of target spaces that are some or all of the indoor spaces, the air-conditioning device being configured to adjust temperatures of air in the target spaces,
- the air-conditioning system further comprising a control unit configured to adjust a flow rate of air blown into each target space by the outside air processing device in accordance with an operating state of the at least one of the indoor units to reduce power consumption of the air-conditioning system, wherein
- if the air-conditioning device cools the target spaces, and a total airflow rate of the outside air processing device is to be increased, the control unit controls an increment of the flow rate of air blown into one of the target spaces provided with a first indoor unit, among the plurality of indoor units, having a first set temperature or suction air temperature to be greater than or equal to an increment of the flow rate of air blown into another one of the target spaces provided with a second indoor unit, among the plurality of indoor units, having a second set temperature or suction air temperature, the second set temperature or suction air temperature being lower than the first set temperature or suction air temperature, and
- if the air-conditioning device heats the target spaces, and the total airflow rate of the outside air processing device is to be increased, the control unit controls the increment of the flow rate of air blown into one of the target spaces (SP1, SP2) provided with the first indoor unit having a third set temperature or suction air temperature to be greater than or equal to the increment of the flow rate of air blown into another one of the target spaces provided with the second indoor unit having a fourth set temperature or suction air temperature higher than the third set temperature or suction air temperature,
- where each increment of the flow rate of air blown into each target space represents an amount of increase in the flow rate of air blown into the respective target space by the outside air processing device.
4 more elements
An air-conditioning system comprising:
- an outside air processing device configured to adjust a temperature of outside air taken into the outside air processing device and to supply the outside air to a plurality of indoor spaces;
- and
- an air-conditioning device including a plurality of indoor units at least one of which is installed in each of a plurality of target spaces that are some or all of the indoor spaces, the air-conditioning device being configured to adjust temperatures of air in the target spaces,
- the air-conditioning system further comprising a control unit configured to adjust a flow rate of air blown into each target space by the outside air processing device in accordance with an operating state of the at least one of the indoor units to reduce power consumption of the air-conditioning system, wherein
- if a total airflow rate of the outside air processing device is to be increased, the control unit controls an increment of the flow rate of air blown into one of the target spaces provided with the at least one associated indoor unit, whose set temperature and suction air temperature have a first difference from each other, to be greater than or equal to an increment of the flow rate of air blown into another one of the target spaces provided with the at least one associated indoor unit, whose set temperature and suction air temperature have a second difference from each other smaller than the first difference,
- where each increment of the flow rate of air blown into each target space represents an amount of increase in the flow rate of air blown into the respective target space by the outside air processing device.
3 more elements
Dependencies are inferred from the claim text.