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公开(公告)号：EP3324133A1
公开(公告)日：2018-05-23
申请号：EP16906496.1
申请日：2016-09-06
发明人： MORIMOTO, Kota
CPC分类号： F25B1/00 , F24F11/86 , F24F11/871 , F24F2110/12 , F24F2110/40 , F25B13/00 , F25B39/04 , F25B49/027 , F25B2313/0294 , F25B2313/031 , F25B2339/04 , F25B2500/19 , F25B2500/31 , F25B2600/112 , F25B2700/1931 , F25B2700/21161 , G05B13/048 , Y02B30/743
摘要： A refrigeration cycle apparatus includes a refrigerant circuit, a high-side pressure sensor, an outside air temperature sensor, an outdoor fan, a fan driving unit, and a controller. The controller includes a pressure prediction unit that predicts, based on a high-side pressure detected by the high-side pressure sensor, a predicted value of high-side pressure at the elapse of a set time, a fan rotation speed control unit that, during cooling operation in which an indoor heat exchanger acts as an evaporator, adjusts the rotation speed of the fan driving unit based on the outside air temperature detected by the outside air temperature sensor and the operating capacity of an indoor unit, and an intermittent fan control unit that, if the fan driving unit is running at a set lower limit rotation speed, and if the high-side pressure is below a target value, controls the fan driving unit to perform intermittent operation, the intermittent operation being performed by setting an ON time and an OFF time such that the predicted value predicted by the pressure prediction unit approaches the target value.
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公开(公告)号：EP3492837A1
公开(公告)日：2019-06-05
申请号：EP17908098.1
申请日：2017-10-10
发明人： MORIMOTO, Kota
IPC分类号： F25B1/00
CPC分类号： F25B13/00 , F25B47/006 , F25B49/02 , F25B2313/0233 , F25B2313/0294 , F25B2313/0315 , F25B2600/01 , F25B2700/02 , F25B2700/2106
摘要： A refrigeration cycle apparatus includes a refrigerant circuit that is formed by connecting a compressor, a flow passage switching device, an outdoor heat exchanger, an expansion unit, and an indoor heat exchanger via pipes, and through which refrigerant flows, an outdoor air-sending device configured to blow outdoor air to the outdoor heat exchanger, an outdoor air temperature detector configured to detect a temperature of the outdoor air, and a controller configured to control an operation of the outdoor air-sending device, the controller including a dew-point temperature prediction unit configured to predict a dew-point temperature to be observed after elapse of a preset time based on an outdoor air temperature detected by the outdoor air temperature detector, an evaporating temperature prediction unit configured to predict an evaporating temperature to be observed after elapse of a preset time of the refrigerant flowing in the outdoor heat exchanger during a heating operation, and an air-sending control unit configured to change a rotation speed of the outdoor air-sending device in such a manner that the evaporating temperature predicted by the evaporating temperature prediction unit exceeds the dew-point temperature predicted by the dew-point temperature prediction unit.
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