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1.发明公开
公开(公告)号：EP4053668A1
公开(公告)日：2022-09-07
申请号：EP21761961.8
申请日：2021-01-25
发明人： LIU, Zhili , LEI, Pengfei , ZHANG, Li , YE, Jingfa , LI, Caoxuan , CAI, Pengcheng , LUO, Sen
摘要： The present invention relates to the field of heat pump technologies, and discloses a water temperature control method, apparatus, and device for a swimming pool heat pump system, and a storage medium, so as to adjust a water temperature of a swimming pool according to an external ambient temperature, increase a coefficient of performance during operation of the swimming pool heat pump system, reduce energy consumption, avoid frequent opening and closing of the swimming pool heat pump system, and increase a service life of the swimming pool heat pump system. The method of the present invention includes: obtaining an external ambient temperature and adjusting a heating temperature according to the external ambient temperature to obtain a target heating temperature; detecting an inlet water temperature of the swimming pool heat pump system, and determining an absolute value of a temperature difference between the inlet water temperature and the target heating temperature; and determining a target operating frequency band of the swimming pool heat pump system according to the absolute value of the temperature difference, controlling an inverter compressor in the swimming pool heat pump system to heat water in a to-be-heated container based on the target operating frequency band, and placing heated water in the to-be-heated container into the swimming pool by using a circulating pump.
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公开(公告)号：EP4071417A1
公开(公告)日：2022-10-12
申请号：EP21761962.6
申请日：2021-01-18
发明人： LIU, Zhili , LEI, Pengfei , ZHANG, Li , YE, Jingfa , LI, Caoxuan , CAI, Pengcheng , LUO, Sen
摘要： The present invention relates to the field of heat pump technologies, and discloses a heat pump defrosting control method, apparatus, and device, and a storage medium. The heat pump defrosting control method includes: reading in real time flag bit values respectively corresponding to multiple defrosting determining parameters; determining, according to each read flag bit value, whether a current heat pump meets a defrosting entry condition; if the current heat pump meets the defrosting entry condition, entering a heat pump defrosting time sequence; after the heat pump defrosting time sequence is entered, detecting compressor discharge pressure and compressor suction pressure at preset interval duration, and calculating a pressure difference between the compressor discharge pressure and the compressor suction pressure; and dynamically adjusting operation manners of a compressor, a fan, and an electronic expansion valve according to the pressure difference in the heat pump defrosting time sequence. In the present invention, by controlling a defrosting entry opportunity and a defrosting process, noise in the defrosting process is greatly reduced, and work efficiency of a heat pump is also improved.
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公开(公告)号：EP3845818A1
公开(公告)日：2021-07-07
申请号：EP19934332.8
申请日：2019-12-12
发明人： LIU, Zhili , WU, Silang , YE, Jingfa , LI, Caoxuan
摘要： This application discloses a water temperature control method for a heat pump system, and a heat pump system. The method includes: detecting a current outlet water temperature of an equipment end in real time, and obtaining a current outlet water temperature difference between the current outlet water temperature and a specified outlet water temperature; and determining a current compressor energy level range based on the current outlet water temperature difference, and obtaining a current compressor frequency corresponding to the current compressor energy level range from a preset energy level range table, so as to control a compressor of an inverter compressor heat pump by using the current compressor frequency. According to this application, equipment can adapt to a change in terminal load. After a terminal changes, an output water temperature is dynamically adjusted to keep the water temperature constant, improving performance of a primary heat pump system.
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公开(公告)号：EP4411273A1
公开(公告)日：2024-08-07
申请号：EP22952140.6
申请日：2022-12-23
发明人： JIANG, Hao , PAN, Qun , LEI, Pengfei , ZHANG, Li , LIU, Zhili
IPC分类号： F24H9/20
摘要： The present application relates to the field of heat pump control technologies, and provides a control method, control apparatus and control device for a heat pump system and a storage medium, so as to improve the water heating efficiency of the heat pump system. The control method for the heat pump system includes: obtaining a system requirement value of a current period and a historical level of a previous period, and performing level prediction for the current period based on the system requirement value to obtain a candidate level; comparing the candidate level with the historical level to obtain a target level; and controlling one or more heat pumps in the heat pump system to be turned on or off based on the target level.
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公开(公告)号：EP4194770A1
公开(公告)日：2023-06-14
申请号：EP22803160.5
申请日：2022-10-10
发明人： JIANG, Hao , LEI, Pengfei , ZONG, Yi , LIU, Zhili
IPC分类号： F24H4/04 , F24H9/20 , F24H15/223 , F24H15/219 , F24H15/38
摘要： The present invention relates to the field of heat pump water heating regulation technologies, and discloses a control method, apparatus and device for frequency regulation, and a storage medium, to improve heating efficiency of a heat pump unit. The control method for frequency regulation includes: obtaining a first heat pump outlet water temperature and a first water tank temperature, where the first heat pump outlet water temperature is used to represent a temperature of hot water produced by the heat pump unit, and the first water tank temperature is used to represent a temperature of water in the water tank after heat exchange; calculating a temperature difference between the first heat pump outlet water temperature and the first water tank temperature if the first heat pump outlet water temperature is greater than or equal to a first preset value in a first preset time period; controlling, if the temperature difference is greater than or equal to a first threshold, a compressor to perform a frequency limiting operation, and obtaining a second heat pump outlet water temperature, where the second heat pump outlet water temperature is used to represent a temperature of hot water produced by the heat pump unit after the frequency limiting operation; and controlling the compressor to stop the frequency limiting operation if the second heat pump outlet water temperature meets a first preset condition.
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