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1. 发明申请

US20190323717A1 CONTROL METHOD FOR HEATING OPERATION OF AIR-CONDITIONER 审中-公开
公开(公告)号：US20190323717A1
公开(公告)日：2019-10-24
申请号：US16475074
申请日：2017-05-26
申请人： QINGDAO HAIER AIR CONDITIONER GENERAL CORP., LTD.
发明人： Beibei XU , Juke LIU , Lin MA , Jian MIAO , Xiangjun LI , Jinlong LIU , Huihua WANG , Yongfu CHENG
IPC分类号： F24F11/30 , F24F11/77
摘要： A heating mode control method of an air conditioner, comprises: obtaining an indoor temperature and calculating the difference between the indoor temperature and an indoor target temperature to obtain an indoor temperature difference as air conditioner running at heating mode; performing a coil temperature control process as the indoor temperature difference in a set indoor temperature difference range, wherein the coil temperature control process including: obtaining an indoor coil temperature and controlling the frequency of the compressor according to the indoor coil temperature and a coil target temperature. The application of the method can achieve the purpose of improving the heating effect by increasing the outlet air temperature, thus improving the heating performance of an air-conditioner.

2. 发明申请

US20190257563A1 METHOD OF CONTROLLING ELECTRONIC EXPANSION VALVE OF AIR-CONDITIONER 审中-公开
公开(公告)号：US20190257563A1
公开(公告)日：2019-08-22
申请号：US16314802
申请日：2017-02-09
申请人： QINGDAO HAIER AIR CONDITIONER GENERAL CORP., LTD.
发明人： Wenming XU , Yu FU , Mingjie ZHANG , Fei WANG , Beibei XU , Juke LIU , Rongbang LUO , Bo LI , Zhiqiang REN
IPC分类号： F25B49/02 , F25B41/06
摘要： Provided is a control method for an electronic expansion valve in air conditioner comprises: obtaining a real-time running frequency of compressor, a real-time exhaust temperature and a real-time outdoor environment temperature as the compressor running; retrieving a target exhaust temperature according to the real-time running frequency in a preset relation in which each available target exhaust temperature is paired with a single real-time running frequency, wherein the target exhaust temperature retrieved being defined as a first target exhaust temperature; defining a sum of the first target exhaust temperature and a set compensation temperature as a second target exhaust temperature, wherein the set compensation temperature is determined by the real-time outdoor environment temperature ; and performing a PID control on opening amount of the electronic expansion valve based on a deviation that is a difference between the real-time exhaust temperature and the second target exhaust temperature . The method achieves an accurate and stable control on opening amount of electronic expansion valve in air conditioner.

3. 发明申请

US20190310001A1 METHOD OF ADJUSTING ELECTRONIC EXPANSION VALVE OF OUTDOOR UNIT OF AIR-CONDITIONER 审中-公开
公开(公告)号：US20190310001A1
公开(公告)日：2019-10-10
申请号：US16314848
申请日：2017-02-09
申请人： QINGDAO HAIER AIR CONDITIONER GENERAL CORP., LTD.
发明人： Wenming XU , Yu FU , Mingjie ZHANG , Fei WANG , Beibei XU , Juke LIU , Rongbang LUO , Junjun YUAN , Shuang DING
IPC分类号： F25B39/02 , F25B19/00 , F25B41/06 , F25B49/02
摘要： Provided is a control method on electronic expansion valve in air conditioner comprises: obtaining a real-time running frequency of compressor, a real-time exhaust temperature and a real-time outdoor environment temperature as the compressor running; comparing the real-time running frequency of compressor with a first set frequency; if the real-time running frequency is greater than or equal to the first set frequency, obtaining an integral coefficient of the PID algorithm according to a first set rule; if the real-time running frequency is less than the first set frequency, obtaining an integral coefficient of the PID algorithm according to the comparison of the real-time outdoor environment temperature and the first set outdoor environment temperature and a second set rule, or according to the comparison of the real-time outdoor environment temperature and the first set outdoor environment temperature and a third set rule, wherein the selection is based on whether the air conditioner is working in cooling mode or in heating mode; performing a PID control on the electronic expansion valve by an error of the difference between real-time exhaust temperature and a set target exhaust temperature. The method realizes an accurate and stable control on electronic expansion valve opening amount.

4. 发明申请

US20210164685A1 METHOD AND APPARATUS FOR CONTROLLING HEATING OPERATION OF AIR CONDITIONER 有权
公开(公告)号：US20210164685A1
公开(公告)日：2021-06-03
申请号：US16608286
申请日：2018-04-06
申请人： QINGDAO HAIER AIR CONDITIONER GENERAL CORP., LTD.
发明人： Juke LIU , Beibei XU , Guojing XU , Xingyu LV
IPC分类号： F24F11/86 , F24F11/63
摘要： A method for controlling the heating operation of an air conditioner. The method comprises: an air conditioner executing a heating operation, and acquiring an indoor temperature; if the indoor temperature is not greater than the first indoor temperature threshold value, executing fuzzy control; according to the difference in temperature between the indoor temperature and a set target indoor temperature, carrying out room temperature PID calculation so as to acquire a first target frequency; acquiring a coil temperature of an indoor heat exchanger, and if the coil temperature is greater than a set target coil temperature, determining the first target frequency to be an indoor unit frequency; otherwise, increasing the current operation frequency of a compressor so as to obtain a second target frequency, selecting the larger value of the first target frequency and the second target frequency, and determining the larger value to be the indoor unit frequency; controlling the compressor of the air conditioner according to the indoor unit frequency; and while executing dual PID control, according to the coil temperature, controlling electrical heating. Further disclosed is an apparatus for controlling the heating operation of an air conditioner. By means of the method and apparatus, the problem of heating being uncomfortable due to the fact that existing air conditioners are slow to provide heating can be solved.

5. 发明申请

US20190255915A1 METHOD OF ADJUSTING ELECTRONIC EXPANSION VALVE OF AIR CONDITIONER 审中-公开
公开(公告)号：US20190255915A1
公开(公告)日：2019-08-22
申请号：US16314853
申请日：2017-02-09
申请人： QINGDAO HAIER AIR CONDITIONER GENERAL CORP., LTD.
发明人： Wenming XU , Yu FU , Mingjie ZHANG , Fei WANG , Beibei XU , Juke LIU , Rongbang LUO , Junjun YUAN , Shuang DING
IPC分类号： B60H1/32 , F25B41/06 , F25B49/02 , B60H1/00
摘要： Provided is a control method on electronic expansion valve in air conditioner, which comprises: obtaining a real-time running frequency of compressor, a real-time exhaust temperature and a real-time outdoor environment temperature as the compressor running; if the air conditioner working in cooling mode, using a first set rule or a second set rule to obtain an integral coefficient in which the selection is based on the comparison of the real-time outdoor environment temperature and a first set outdoor environment temperature; if the air conditioner working in heating mode, using a first set rule or a third set rule to obtain an integral coefficient in which the selection is based on the comparison of the real-time outdoor environment temperature and a second set outdoor environment temperature; performing a PID control on the electronic expansion valve by using an error of the difference between real-time exhaust temperature and a set target exhaust temperature. The method realizes an accurate and stable control on opening amount of electronic expansion valve in air conditioner.

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