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1. 发明授权

US11611455B2 Method and device for communication detection and air conditioner 有权
公开(公告)号：US11611455B2
公开(公告)日：2023-03-21
申请号：US17297544
申请日：2020-05-15
申请人： QINGDAO HAIER AIR-CONDITIONING ELECTRONIC CO., LTD. , HAIER SMART HOME CO., LTD.
发明人： Shaojiang Cheng , Defang Guo , Bin Shi , Baitian Zhuo , Jun Wang , Ruigang Zhang
IPC分类号： H04L25/02 , H04L12/28 , F24F11/56
摘要： The present application relates to a method for communication detection. The method comprises: determining a length level of a communication link according to a time length of pulse data during transmission of data over the communication link, and determining a detection time point according to the length level of the communication link. The length level of the communication link is determined according to the time length of pulse data during transmission of data over the communication link, and then the detection time point of the data is confirmed, thereby realizing dynamic determination of the detection time point of data according to the time length of the pulse data, and data waveform attenuation caused by an excessively long distance is avoided by means of automatic adjustment of the detection time point, so that the correctness of data detection is ensured, and the stability of long-distance homebus communication is improved.

2. 发明授权

US11190483B2 Address competition method of multi-connection type control system 有权
公开(公告)号：US11190483B2
公开(公告)日：2021-11-30
申请号：US16970647
申请日：2019-03-13
申请人： Qingdao Haier Air-conditioning Electronic Co., Ltd , Haier Smart Home Co., Ltd.
发明人： Baitian Zhuo , Bin Shi , Shaojiang Cheng , Ruigang Zhang , Jun Wang
IPC分类号： H04L29/12 , H04W8/26 , H04L12/28 , H04W84/20
摘要： An address competition method of a multi-connection type control system, intended to solve the problem of how to increase the efficiency of indoor air-conditioner unit address configuration where, according to the order in which a first slave control device initiates an address request, a relay device allocates, in sequence, temporary addresses to all first slave control devices, and according to the temporary addresses, initiates address requests in sequence to a master control device; according to the order in which a second slave control device initiates an address request, the master control device allocates, in sequence, official addresses to all second slave control devices; according to the temporary addresses, the relay device allocates the official addresses to the corresponding first slave control devices. The method can efficiently allocate an address to an indoor air-conditioner unit, and ensures that the address of each indoor air-conditioner unit is unique.

3. 发明授权

US11477056B2 Method and apparatus for controlling communication compensation, and air conditioner 有权
公开(公告)号：US11477056B2
公开(公告)日：2022-10-18
申请号：US17297564
申请日：2020-05-15
申请人： QINGDAO HAIER AIR-CONDITIONING ELECTRONIC CO., LTD. , HAIER SMART HOME CO., LTD.
发明人： Shaojiang Cheng , Defang Guo , Bin Shi , Baitian Zhuo , Ruigang Zhang
IPC分类号： H04B7/216 , H04L25/03 , F24F11/64 , F24F11/56 , H04B1/02
摘要： The present disclosure relates to a method for controlling communication compensation, comprising: determining a length class of a communication link according to a time length of pulse data transmitted on the communication link; and determining a compensation scheme for communication compensation according to the length class of the communication link. In the invention, a length class of a communication link determined according to a time length of pulse data transmitted on the communication link is used to determine a compensation scheme for communication compensation so as to perform time compensation on data, thereby preventing attenuation caused by an excessively long communication distance, and improving the stability of long-distance communication performed by means of Homebus. Also disclosed are an apparatus for controlling communication compensation, and an air conditioner.

4. 发明授权

US11552818B2 Relay device and multi-split air-conditioning control systems 有权
公开(公告)号：US11552818B2
公开(公告)日：2023-01-10
申请号：US17047894
申请日：2019-01-21
申请人： Qingdao Haier Air-conditioning Electronic Co., Ltd , Haier Smart Home Co., Ltd.
发明人： Defang Guo , Benhai Yuan , Ruigang Zhang , Bin Shi , Baitian Zhuo , Shaojiang Cheng , Jun Wang
IPC分类号： H04L67/125 , H04L12/40 , H04L5/00
摘要： A relay device and a multi-split control system that achieve reliable communication between an outdoor air conditioning unit and multiple indoor units under the condition that the length of a communication bus is limited. The system expands the communication distance by a cascade path formed by a plurality of relay devices. The cascade path transmits control signals sent by a master control device/a specific slave control device (i.e. a slave control device communicating with the master control device or certain relay device) to corresponding slave control devices one by one, and the corresponding slave control devices transmit the signals to the master control device/specific slave control device according to a response signal fed back by the control signal, where the relay devices may respectively communicate with a source node device and a destination node device on the basis of the master-slave type communication mode.

5. 发明授权

US11530855B2 Air conditioner heat dissipation structure control method and system 有权
公开(公告)号：US11530855B2
公开(公告)日：2022-12-20
申请号：US16966693
申请日：2019-01-28
申请人： QINGDAO HAIER AIR-CONDITIONING ELECTRONIC CO., LTD. , HAIER SMART HOME CO., LTD.
发明人： Yuhui Liu , Shaojiang Cheng , Xuefei He , Wenbo Bai , Yu Leng
IPC分类号： F25B41/31 , F25B41/20 , F25B41/40 , F25B43/00 , F25B49/02 , F25B41/34
摘要： An air conditioning heat dissipation structure control method and a system includes the steps obtaining a real-time temperature Te of the heat generating component; if Te>Ted, opening the solenoid valve SV2 and adjusting the electronic expansion valve 4 to a preset initial opening degree; obtaining an update real-time temperature Te of the heat generating component after a setting time period; if the update real-time temperature Te>Tmax, performing the following steps every set period of time, obtaining a refrigerant temperature refrigerant temperature Tin at the inlet end of the refrigerant heat dissipation pipe and a refrigerant temperature Tout at the outlet end of the refrigerant heat dissipation pipe; calculating a real-time temperature difference ΔTreal-time of the inlet end temperature Tin and the outlet end temperature Tout, wherein ΔTreal-time=Tout−Tin, obtaining a preset target temperature difference ΔTtarget and calculating a deviation ΔTdeviation, ΔTdeviation=ΔTreal-time−ΔTtarget; calculating a deviation change rate ΔΔTdeviation=ΔTdeviation−ΔTdeviation′, and adjusting the opening degree of the electronic expansion valve based on the deviation ΔTdeviation and the deviation change rate ΔΔTdeviation, enables the temperature difference between the inlet end and the outlet end of the refrigerant heat dissipation pipe reaches the target temperature difference so as to ensure a good heat dissipation effect and keep the heat generating component working in a good condition and also lowers the cost by using refrigerant for transferring heat from the heat generating component. With the method, the reliability and stability of the air conditioning operation are improved, and the problem of poor heat dissipation reliability and high heat dissipation cost in the prior art is solved.

6. 发明授权

US11287156B2 Method for controlling air conditioner compressor frequency based on vibration of pipeline 有权
公开(公告)号：US11287156B2
公开(公告)日：2022-03-29
申请号：US16962630
申请日：2019-08-12
申请人： Qingdao Haier Air-conditioning Electronic Co., Ltd , Haier Smart Home Co., Ltd.
发明人： Baitian Zhuo , Bin Shi , Xiuge Li , Shaojiang Cheng , Ruigang Zhang , Jun Wang
IPC分类号： F24F11/64 , F24F11/32 , F24F11/86 , G05B15/02 , F24F140/00
摘要： To solve the problem that a resonance phenomenon occurs between an outdoor unit and a compressor of existing air conditioners, embodiments include a compressor and a pipeline connected to the compressor. A control method includes obtaining a vibration displacement of the pipeline during the operation of the air conditioner and recording it as a first vibration displacement; obtaining the vibration displacement of the pipeline again after time has elapsed and recording it as a second vibration displacement; and selectively adjusting operating parameters of the compressor according to the first vibration displacement and the second vibration displacement. The vibration condition of the outdoor unit is determined through the real-time vibration condition and the vibration change condition of the pipeline so the air conditioner can selectively change the operating parameters of the compressor according to the vibration condition. Thus the vibration condition of the compressor is changed to avoid pipeline damage.

7. 发明授权

US11536495B2 VRV oil return control method and system 有权
公开(公告)号：US11536495B2
公开(公告)日：2022-12-27
申请号：US16966876
申请日：2019-01-28
申请人： QINGDAO HAIER AIR-CONDITIONING ELECTRONIC CO., LTD. , HAIER SMART HOME CO., LTD.
发明人： Defang Guo , Baitian Zhuo , Bin Shi , Shaojiang Cheng , Ruigang Zhang , Jun Wang
IPC分类号： F25B31/00 , F25B49/02 , F24F1/0003
摘要： An oil return control method for a multi-split air conditioner and a system accomplishing the same includes: calculating an average exhaust pressure within an oil return period Pd_AVG; determining whether the average exhaust pressure Pd_AVG≥the set threshold Pdthreshold; if Pd_AVG≥Pdthreshold, maintaining the multi-split air conditioner working in heating mode to ensure an acceptable oil return performance without affecting the air conditioning effect of indoor unit in heating mode; if Pd_AVG

8. 发明授权

US11336616B2 Address competition method of multi-connected type control system 有权
公开(公告)号：US11336616B2
公开(公告)日：2022-05-17
申请号：US17042435
申请日：2019-01-21
申请人： Qingdao Haier Air-conditioning Electronic Co., Ltd , Haier Smart Home Co., Ltd.
发明人： Baitian Zhuo , Bin Shi , Shaojiang Cheng , Ruigang Zhang , Jun Wang , Wenjun Shao
IPC分类号： H04L61/5038 , F24F11/30 , H04L61/5092
摘要： An address competition method of a multi-connected type control system. The method aims at solving the problem of how to set an indoor machine communication address in the multi-connected type air conditioner system efficiently. For the purpose, a primary control device (such as an air conditioner outdoor machine) performs broadcasting on each address in a preset address section in sequence. A slave control device (such as the air conditioner indoor machine) responds to the primary control device on the basis of preset responding time and the number of currently broadcasting times of the primary control device. The primary control device to which a communication address is distributed temporarily is responded so as to finish address competition rapidly. Meanwhile, the primary control device can perform continuous broadcasting on one address for repeatedly, so that the competition success rate of the address is increased.

9. 发明授权

US11300313B2 Cooling medium control method for multi-connected air conditioning system 有权
公开(公告)号：US11300313B2
公开(公告)日：2022-04-12
申请号：US16961398
申请日：2019-05-21
申请人： Qingdao Haier Air-conditioning Electronic Co., Ltd , Haier Smart Home Co., Ltd.
发明人： Baitian Zhuo , Bin Shi , Shaojiang Cheng , Ruigang Zhang , Jun Wang
IPC分类号： F24F11/84 , F24F11/64
摘要： To control operating parameters of the compressor and ensure stable operation of the air conditioning system, a cooling medium control method for a multi-connected air conditioning system includes: acquiring current operating values of target parameters of the compressor during the operation of the compressor; calculating deviation degrees of the target parameters of the compressor according to the current operating values of the target parameters of the compressor and standard operating ranges of the target parameters of the compressor; and selectively adjusting an opening degree of the outdoor expansion valve or the indoor expansion valve based on the deviation degrees; where the standard operating ranges of the target parameters are operating ranges of the target parameters specified by a normal operating state of the compressor. Here the opening degree of the indoor expansion valve or the outdoor expansion valve is adjusted in real time according to parameters of the compressor.

10. 发明授权

US11512860B2 Protection circuit and air conditioner 有权
公开(公告)号：US11512860B2
公开(公告)日：2022-11-29
申请号：US16546235
申请日：2019-08-20
申请人： Qingdao Haier Air-Conditioning Electronic Co., Ltd.
发明人： Shaojiang Cheng , Jun Wang , Benhai Yuan , Bin Shi
IPC分类号： H02H11/00 , F24F11/32 , F24F11/49
摘要： Embodiments of the present disclosure provide a protection circuit and an air conditioner, which are applied to the field of air conditioner technologies and used to protect an indoor unit. The protection circuit provided by the embodiments of the present disclosure includes: a positive temperature coefficient thermistor; a signal input terminal; and a communication module; wherein a first end of the positive temperature coefficient thermistor is connected to the signal input terminal, and a second end of the positive temperature coefficient thermistor is connected to the communication module.

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