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公开(公告)号：EP4145050A1
公开(公告)日：2023-03-08
申请号：EP21795743.0
申请日：2021-03-02
发明人： CAI, Yanfang , ZHANG, Ming , SUN, Mingming
IPC分类号： F24F1/0014 , F24F13/14 , F24F11/79 , F24F11/74
摘要： A control method for an air conditioner. An air conditioner comprises a housing (1) as well as an indoor heat exchanger (2) and a fan (3) which are arranged in the housing (1); an upper air outlet (14) and a lower air outlet (15) are formed on the front side of the housing (1); an upper deflector (4) and an upper flap (5) are arranged between the upper air outlet (14) and the fan (3); a lower deflector (6) and a lower flap (7) are arranged between the lower air outlet (15) and the fan (3). The control method for an air conditioner comprises: obtaining an actual indoor temperature (S1); comparing the actual indoor temperature with a temperature preset by a user (S2); determining whether an actual working mode of the air conditioner is a heating mode or a cooling mode (S3); and controlling the upper deflector (4), the upper flap (5), the lower deflector (6), and the lower flap (7) on the basis of the actual working mode and the comparison result (S4). The method can achieve the purposes of allowing people to quickly feel the heating effect of an air conditioner in an initial heating stage, and avoiding direct blowing of cold air on human bodies in an initial cooling stage.
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2.发明公开
公开(公告)号：EP3882533A1
公开(公告)日：2021-09-22
申请号：EP19885718.7
申请日：2019-08-15
发明人： ZHANG, Ming , SONG, Deyue , GAO, Qiang , WANG, Haisheng , LU, Dahai , ZHANG, Xiaodi , ZHOU, Mingjie
摘要： A control method and system for refrigeration, oil return and noise reduction of a multi-split air-conditioner. The method comprises: when the accumulative time that the frequency of a compressor is smaller than the set frequency threshold reaches the oil return cycle and a standby indoor unit exists, conducting an oil return running mode; resetting the accumulative time; starting counting the oil return running time; calculating the indoor unit starting load; determining the opening degree of an expansion valve of the standby indoor unit according to the indoor unit starting load and whether there is anyone in a room where the standby indoor unit is located; controlling the compressor to run according to the set oil return frequency; and when the oil return running time reaches the oil return set time, exiting the oil return running mode, and conducting a normal refrigerating running mode. By means of the control method, the oil return effect is ensured, and the influences of throttling sounds caused by opening of the expansion valve of the standby indoor unit on users during oil return are also reduced.
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公开(公告)号：EP4141339A1
公开(公告)日：2023-03-01
申请号：EP21792867.0
申请日：2021-02-05
发明人： SONG, Deyue , WANG, Haisheng , ZHANG, Ming
摘要： Disclosed is a refrigerant flow control method for a multi-split air conditioning system, the method comprising: when a multi-split air conditioning system is started and operates in a heating mode, acquiring a refrigerant outlet side temperature of an indoor heat exchanger (EH i1 ) of an indoor unit which is in a normal heating state, and a refrigerant outlet side temperature of an indoor heat exchanger (EH i2 ) of an indoor unit which is in a standby/shutdown state; comparing the refrigerant outlet side temperature of the indoor heat exchanger (EH i1 ) of the indoor unit in the normal heating state with the refrigerant outlet side temperature of the indoor heat exchanger (EH i2 ) of the indoor unit in the standby/shutdown state; and selectively increasing or reducing the opening degree of a bypass expansion valve (XV i2 ) of the indoor unit in the standby/shutdown state according to a comparison result. Further disclosed is a multi-split air conditioning system. The problems whereby when the multi-split air conditioning system is started and operates in a heating mode, the amount of refrigerant in an indoor unit in a normal heating state is insufficient, and the amount of noise of an indoor unit in the standby/shutdown state is large can be solved.
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公开(公告)号：EP4086531A1
公开(公告)日：2022-11-09
申请号：EP20910026.2
申请日：2020-11-13
发明人： SONG, Deyue , ZHANG, Ming , ZHANG, Xiaodi , SUN, Mengmeng
IPC分类号： F24F11/871 , F24F11/64 , F24F140/20
摘要： The present disclosure relates to the technical field of air conditioning; in particular, the present disclosure relates to a method for controlling a rotational speed of an external fan of an air conditioner. The present disclosure aims to solve the problem of low adjustment accuracy of external fans of existing air conditioners. To this end, the method for controlling the rotational speed includes: obtaining a pressure value of a refrigerant pipeline between the compressor and the outdoor heat exchanger after the external fan starts; comparing the pressure value with a preset pressure threshold; and selectively controlling the rotational speed of the external fan to increase or decrease by a rotational speed adjustment amount based on a comparison result; in which the preset pressure threshold is determined based on an outdoor ambient temperature. By selectively controlling the rotational speed of the external fan to increase or decrease by the rotational speed adjustment amount based on the pressure value and the preset pressure threshold, the control method of the present application can realize a stepless speed adjustment of the external fan, so that the rotational speed of the external fan can match the pressure value of the air conditioning system, the influence of the rotational speed of the external fan on the pressure of the air conditioning system can be reduced, and a stable operation of the air conditioning system can be ensured.
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公开(公告)号：EP4067763A1
公开(公告)日：2022-10-05
申请号：EP20891769.0
申请日：2020-07-07
发明人： SONG, Deyue , ZHANG, Ming , GAO, Qiang , SUN, Mengmeng , ZHANG, Xiaodi
IPC分类号： F24F11/00
摘要： An air conditioner starting frequency determining method and system. The method comprises: comparing an acquired actual temperature value of the outdoor environment with preset first and second temperature thresholds, and determining the starting frequency of an air conditioner on the basis of the comparison result. The starting frequency of the air conditioner can be adjusted according to the actual temperature value of the outdoor environment, so that the air conditioner can be turned on normally without failure even when the outdoor temperature is high.
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公开(公告)号：EP4086530A1
公开(公告)日：2022-11-09
申请号：EP20910288.8
申请日：2020-11-13
发明人： SONG, Dayue , WANG, Haisheng , ZHANG, Ming , SUN, Mengmeng
摘要： The present disclosure relates to the technical field of air conditioning; in particular, the present disclosure relates to a method for controlling a rotational speed of an external fan of an air conditioner. The present disclosure aims to solve the problem of low adjustment accuracy of external fans of existing air conditioners. To this end, the method for controlling the rotational speed includes: obtaining a coil temperature of the outdoor heat exchanger after the external fan starts; comparing the coil temperature with a preset temperature threshold; and selectively controlling the rotational speed of the external fan to increase or decrease by a rotational speed adjustment amount based on a comparison result; in which the preset temperature threshold is determined based on an outdoor ambient temperature. By selectively controlling the rotational speed of the external fan to increase or decrease by the rotational speed adjustment amount based on the coil temperature of the outdoor heat exchanger and the preset temperature threshold, the control method of the present application can realize a stepless speed adjustment of the external fan, so that the rotational speed of the external fan can match the coil temperature of the outdoor unit, the influence of the rotational speed of the external fan on the air conditioning system can be reduced, and a stable operation of the air conditioning system can be ensured.
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公开(公告)号：EP4027069A1
公开(公告)日：2022-07-13
申请号：EP20860858.8
申请日：2020-06-09
发明人： ZHANG, Xiaodi , ZHANG, Dong , XU, Lei , GAO, Qiang , ZHANG, Ming
IPC分类号： F24F11/38 , F24F11/64 , F24F11/74 , F24F11/80 , F24F11/88 , F24F110/10 , F24F110/20
摘要： The present invention relates to the technical field of air conditioners, and particularly relates to a refrigeration capacity determination method, a refrigeration energy efficiency ratio determination method, and a failure notification method. The present invention aims to solve the problem in which existing refrigeration capacity determination methods for air conditioners are unable to accurately calculate the refrigeration capacity of air-cooled air conditioners. The refrigeration capacity determination method of the present invention comprises: acquiring an indoor air density; acquiring an air output volume of an indoor unit; acquiring an air inlet enthalpy value of the indoor unit; acquiring an air outlet enthalpy value of the indoor unit; and determining a refrigeration capacity of an air conditioner according to the indoor air density, and the air output volume, the air inlet enthalpy value, and the air outlet enthalpy value of the indoor unit. The present invention estimates, by means of the indoor air density and the air output volume, an air mass that the indoor unit is capable of refrigerating per second, and uses the air inlet enthalpy value and the air outlet enthalpy value which are capable of indicating energy contained in the air. In this way, the present invention combines the indoor air density, the air output volume, the air inlet enthalpy value, and the air outlet enthalpy value to achieve accurate calculation of the refrigeration capacity.
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