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1. CN111365824 - Air conditioner fluorine lack judging method and control method

Office
China
Application Number 201811603281.4
Application Date 26.12.2018
Publication Number 111365824
Publication Date 03.07.2020
Publication Kind A
IPC
F24F 11/38
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
11Control or safety arrangements
30for purposes related to the operation of the system, e.g. for safety or monitoring
32Responding to malfunctions or emergencies
38Failure diagnosis
F24F 11/64
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
11Control or safety arrangements
62characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
63Electronic processing
64using pre-stored data
F24F 11/84
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
11Control or safety arrangements
70Control systems characterised by their outputs; Constructional details thereof
80for controlling the temperature of the supplied air
83by controlling the supply of heat-exchange fluids to heat-exchangers
84using valves
F24F 11/52
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
11Control or safety arrangements
50characterised by user interfaces or communication
52Indication arrangements, e.g. displays
CPC
F24F 11/38
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
11Control or safety arrangements
30for purposes related to the operation of the system, e.g. for safety or monitoring
32Responding to malfunctions or emergencies
38Failure diagnosis
F24F 11/52
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
11Control or safety arrangements
50characterised by user interfaces or communication
52Indication arrangements, e.g. displays
F24F 11/64
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
11Control or safety arrangements
62characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
63Electronic processing
64using pre-stored data
F24F 11/84
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
11Control or safety arrangements
70Control systems characterised by their outputs; Constructional details thereof
80for controlling the temperature of the supplied air
83by controlling the supply of heat-exchange fluids to heat-exchangers
84using valves
F25B 49/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
49Arrangement or mounting of control or safety devices
02for compression type machines, plant or systems
F25B 2500/24
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
2500Problems to be solved
24Low amount of refrigerant in the system
Applicants QINGDAO HAIER AIR-CONDITIONER ELECTRIC CO., LTD.
青岛海尔空调电子有限公司
Inventors YANG KUN
杨坤
MA YUNHUA
马韵华
GE LONGLING
葛龙岭
LEI YANYAO
雷晏瑶
SUN CHAO
孙超
XIONG CHANGYOU
熊长友
GAO ZHIYANG
高志洋
SUI YABIN
随亚宾
CAO ZHIGAO
曹志高
LIU SHOUYU
刘守宇
Agents 北京瀚仁知识产权代理事务所(普通合伙) 11482
北京瀚仁知识产权代理事务所(普通合伙) 11482
Title
(EN) Air conditioner fluorine lack judging method and control method
(ZH) 空调缺氟判断方法及控制方法
Abstract
(EN)
The invention belongs to the technical field of air conditioners, and aims at solving the problem that for an existing air conditioner, the fluorine lack state of the air conditioner cannot be accurately judged, and the running state of the air conditioner cannot be subjected to adaptive adjusting according to the fluorine lack degree. The invention provides an air conditioner fluorine lack judging method and a control method. The air conditioner control method comprises the steps of obtaining the air outlet temperature of a first air outlet and a second air outlet, and calculating the temperature difference value; comparing the temperature difference value with a preset temperature threshold value; and according to a comparing result, adjusting the opening degree of an expansion valve. According to the air conditioner control method, according to the temperature comparing result, the opening degree of the expansion valve can be automatically adjusted, the fluorine flow is compensated,the refrigeration or heating efficiency of the air conditioner system can be improved, self-adaptation adjusting of the air conditioner is achieved, under the state that the fluorine lack condition of the system is slight, refrigerating or heating efficiency of the system can be still ensured, energy consumption is effectively reduced, according to the air conditioner fluorine lack judging method, the judging result accuracy is higher, and the judging is more easily achieved.

(ZH)
本发明属于空调技术领域,旨在解决现有空调无法方便准确地判断空调的缺氟状态,以及无法根据缺氟程度适应性调整空调运行状态的问题。为此,本发明提供了一种空调缺氟判断方法及控制方法,空调控制方法包括:获取第一出风口和第二出风口处的出风温度,并计算温度差值;比较温度差值和预设温差阈值;根据比较结果,调整膨胀阀的开度。本发明提供的空调控制方法,能够依据温度比较结果来自动调整膨胀阀的开度,对氟流量进行补偿,以增强空调系统的制冷或制热效率,实现空调的自适应调整,从而在系统缺氟情况较轻的状态下仍然保证系统的制冷或制热效率,有效降低能耗。本发明的空调缺氟判断方法,判断结果准确度更高,且更容易实现。

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