Patents by Inventor Jiangbin Liu
Jiangbin Liu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11754327Abstract: An air conditioning system, which includes an indoor heat exchanger, an outdoor heat exchanger, a compressor, a throttling device, a four-way valve and an ejection device; the indoor heat exchanger, the outdoor heat exchanger, the compressor and the throttling device form a closed-loop refrigerant circulation circuit, the four-way valve is configured to switch the air conditioning system between a cooling mode and a heating mode, and the ejection device is configured to be capable of being connected to a discharge side of the compressor when the air conditioning system executes the heating mode, so as to improve a heating effect of the air conditioning system. This system has a lower cost and a simple structure for easier maintenance, and the energy efficiency ratio is improved, so that the heating effect of the air conditioning system can be improved when the air conditioning system executes the heating mode.Type: GrantFiled: December 26, 2019Date of Patent: September 12, 2023Assignees: Qingdao Haier Air-conditioning Electronic Co., Ltd., Haier Smart Home Co., Ltd.Inventors: Qingliang Meng, Qiang Song, Jiangbin Liu, Jingsheng Liu
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Patent number: 11578896Abstract: A refrigeration system, comprising an evaporator, a condenser, a throttling device, a compressor, an economizer and an ejector, these devices together form a closed-loop refrigerant circulation loop, the ejector being connected to the economizer, and the ejector being provided on an exhaust side of the compressor. The structure enables the refrigeration system to realize the dual-stage boost, does not affect the stability of the compressor due to the instability of the airflow of the ejector, and does not affect the oil property of the compressor, thereby ensuring the operation safety of the compressor.Type: GrantFiled: June 14, 2019Date of Patent: February 14, 2023Assignees: Qingdao Haier Air-conditioning Electronic Co., Ltd, Haier Smart Home Co., Ltd.Inventors: Qingliang Meng, Qiang Song, Xueyan Tan, Jiangbin Liu, Jingsheng Liu, Bing Wang
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Patent number: 11480344Abstract: A multi-split air conditioner and control method are provided. The multi-split air conditioner includes an outdoor unit including an oil separator and a four-way valve. The outdoor unit includes a pipeline connecting the oil separator and the four-way valve, and the pipeline includes a first pipeline and a second pipeline arranged in parallel, wherein the first pipeline is provided with a heat storage module and a heat storage module control valve, and the second pipeline is provided with a first control valve. When the outdoor environment temperature satisfies a certain condition, the first pipeline and the second pipeline are controlled, so that at least part of working medium circulates in the first pipeline between the oil separator and the four-way valve through the heat storage module.Type: GrantFiled: December 4, 2020Date of Patent: October 25, 2022Assignees: QINGDAO HAIER AIR-CONDITIONING ELECTRONIC CO., LTD., HAIER SMART HOME CO., LTD.Inventors: Qingliang Meng, Qiang Song, Jiangbin Liu, Jingsheng Liu, Yun Zhang, Tao Yuan
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Patent number: 11378296Abstract: The present application discloses a multi-split air conditioner and a control method thereof. The multi-split air conditioner includes a plurality of outdoor heat exchangers connected in parallel to a refrigerant main circulation passage, wherein a parallel branch in which each of the plurality of outdoor heat exchangers is located is provided with a branch control valve capable of controlling a flow rate of refrigerant flowing through the parallel branch. The control method includes: determining a current superheat degree of the multi-split air conditioner; when the current superheat degree of the multi-split air conditioner deviates from a set target superheat degree, controlling and regulating the flow rate of the refrigerant flowing through the branch control valve; and controlling and regulating the flow rate of the refrigerant flowing through the air supplement control valve according to the flow rate of the refrigerant flowing through each of branch control valves.Type: GrantFiled: May 28, 2019Date of Patent: July 5, 2022Assignees: QINGDAO HAIER AIR-CONDITIONING ELECTRONIC CO., LTD., HAIER SMART HOME CO., LTD.Inventors: Jingsheng Liu, Qiang Song, Tao Ren, Qingliang Meng, Yinyin Li, Jiangbin Liu, Defang Guo, Xueyan Tan
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Publication number: 20210372635Abstract: An air inducing device for an air conditioner and an air supply control method to resolve user discomfort. The device includes an inducing member and an air storage member communicating with an air supply port, and the inducing member has an air inlet and an air outlet; an air inducing panel is provided at the air inlet, and the air inducing panel has a plurality of air inducing holes; an air outlet panel is provided at the air outlet, and the air outlet panel has a plurality of air outlet holes; an air speed increasing structure is provided between the air storage member and the inducing member, and the air speed increasing structure forms a negative pressure in the inducing member to allow indoor air to enter f and mix with air discharged before entering the room, so that the temperature of blown air is closer to room temperature.Type: ApplicationFiled: December 24, 2019Publication date: December 2, 2021Applicants: Qingdao Haier Air-conditioning Electronic Co., Ltd, Haier Smart Home Co., Ltd.Inventors: Qingliang MENG, Qiang SONG, Jingsheng LIU, Jiangbin LIU
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Publication number: 20210270497Abstract: A refrigeration system, comprising an evaporator, a condenser, a throttling device, a compressor, an economizer and an ejector, these devices together form a closed-loop refrigerant circulation loop, the ejector being connected to the economizer, and the ejector being provided on an exhaust side of the compressor. The structure enables the refrigeration system to realize the dual-stage boost, does not affect the stability of the compressor due to the instability of the airflow of the ejector, and does not affect the oil property of the compressor, thereby ensuring the operation safety of the compressor.Type: ApplicationFiled: June 14, 2019Publication date: September 2, 2021Applicants: Qingdao Haier Air-conditioning Electronic Co., Ltd, Haier Smart Home Co., Ltd.Inventors: Qingliang MENG, Qiang SONG, Xueyan TAN, Jiangbin LIU, Jingsheng LIU, Bing WANG
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Publication number: 20210262690Abstract: The present application discloses a multi-split air conditioner and a control method thereof. The multi-split air conditioner includes a plurality of outdoor heat exchangers connected in parallel to a refrigerant main circulation passage, wherein a parallel branch in which each of the plurality of outdoor heat exchangers is located is provided with a branch control valve capable of controlling a flow rate of refrigerant flowing through the parallel branch. The control method includes: determining a current superheat degree of the multi-split air conditioner; when the current superheat degree of the multi-split air conditioner deviates from a set target superheat degree, controlling and regulating the flow rate of the refrigerant flowing through the branch control valve; and controlling and regulating the flow rate of the refrigerant flowing through the air supplement control valve according to the flow rate of the refrigerant flowing through each of branch control valves.Type: ApplicationFiled: May 28, 2019Publication date: August 26, 2021Inventors: Jingsheng Liu, Qiang Song, Tao Ren, Qingliang Meng, Yinyin Li, Jiangbin Liu, Defang Guo, Xueyan Tan
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Publication number: 20210180845Abstract: An air conditioning system, which includes an indoor heat exchanger, an outdoor heat exchanger, a compressor, a throttling device, a four-way valve and an ejection device; the indoor heat exchanger, the outdoor heat exchanger, the compressor and the throttling device form a closed-loop refrigerant circulation circuit, the four-way valve is configured to switch the air conditioning system between a cooling mode and a heating mode, and the ejection device is configured to be capable of being connected to a discharge side of the compressor when the air conditioning system executes the heating mode, so as to improve a heating effect of the air conditioning system. This system has a lower cost and a simple structure for easier maintenance, and the energy efficiency ratio is improved, so that the heating effect of the air conditioning system can be improved when the air conditioning system executes the heating mode.Type: ApplicationFiled: December 26, 2019Publication date: June 17, 2021Applicants: Qingdao Haier Air-conditioning Electronic Co., Ltd, Haier Smart Home Co., Ltd.Inventors: Qingliang MENG, Qiang SONG, Jiangbin LIU, Jingsheng LIU
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Publication number: 20210088232Abstract: A multi-split air conditioner and control method are provided. The multi-split air conditioner includes an outdoor unit including an oil separator and a four-way valve. The outdoor unit includes a pipeline connecting the oil separator and the four-way valve, and the pipeline includes a first pipeline and a second pipeline arranged in parallel, wherein the first pipeline is provided with a heat storage module and a heat storage module control valve, and the second pipeline is provided with a first control valve. When the outdoor environment temperature satisfies a certain condition, the first pipeline and the second pipeline are controlled, so that at least part of working medium circulates in the first pipeline between the oil separator and the four-way valve through the heat storage module.Type: ApplicationFiled: December 4, 2020Publication date: March 25, 2021Inventors: Qingliang Meng, Qiang Song, Jiangbin Liu, Jingsheng Liu, Yun Zhang, Tao Yuan