Patents by Inventor Huaican LIU
Huaican 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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Publication number: 20230118671Abstract: Disclosed is a photovoltaic air conditioning system, which includes a photovoltaic cell array; an air conditioning unit, comprising a first cabinet, a first inverter module and a variable frequency compressor, wherein the first inverter module and the variable frequency compressor are installed in the first cabinet, and the first inverter module is configured to supply power to the variable frequency compressor; a current conversion unit, comprising a second cabinet, a rectifier module and a second inverter module, wherein the second cabinet resides outside of the first cabinet, the rectifier module and the second inverter module are installed in the second cabinet.Type: ApplicationFiled: December 19, 2022Publication date: April 20, 2023Applicant: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAIInventors: Zhigang ZHAO, Ying CHEN, Huaican LIU
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Publication number: 20220154975Abstract: Some embodiments of the present disclosure provide an electric heater, which includes: a housing provided with an air inlet and an air outlet, and the housing internally having an air duct communicated between the air inlet and the air outlet; and a heating member and a convection member both being assembled in the air duct, wherein the heating member being configured for heating the air entering from the air inlet to the air duct during energization, the convection member being configured for blowing a heated air from the air duct to the air outlet for discharging. Herein the air outlet is provided on a bottom end of the housing close to a ground.Type: ApplicationFiled: June 2, 2020Publication date: May 19, 2022Inventors: Bo YU, Yuye LUO, Penge ZHANG, Jian ZHANG, Huaican LIU, Yan KONG, Yesong LI
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Patent number: 10356962Abstract: The invention discloses a power electronic device cooling system, which includes an air conditioning unit, a coolant pump (31), a bypass throttling element (32) and a cooler. The coolant pump (31) takes liquid from a first condenser (13) of the air conditioning unit, a liquid coolant enters the cooler after being throttled by the bypass throttling element (32), the low-temperature coolant cools a power electronic device at the cooler, and the coolant enters an evaporator (11) of the air conditioning unit to finish a cooling cycle after flowing out of the cooler. The power electronic device cooling system has a good cooling effect, and is high in cooling efficiency, small in equipment size and low in noise, and moreover, the power electronic device may be located in a sealed environment and prevented from influence of dust, and is internally clean and long in operation life.Type: GrantFiled: June 25, 2014Date of Patent: July 16, 2019Assignee: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAIInventors: Hongbo Li, Hua Liu, Zhiping Zhang, Yu Zhou, Huaican Liu
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Patent number: 10211687Abstract: A stator and a rotor are mounted inside a case of a permanent magnet motor, and separate the inner cavity of the case into a first inner cavity and a second inner cavity. An air gap is formed between an inner circle surface of the stator and an outer circle surface of the rotor. Axial ventilation holes in communication with the first inner cavity and with the second inner cavity are disposed in teeth of a stator core. The rotor comprises a rotor core and rotor pressing rings disposed in an axial direction at both sides of the rotor core. A partition is disposed between the rotor core and at least one of the rotor pressing rings. An outer edge of the partition extends into the air gap, thus enhancing the air blocking effect and realizing a higher cooling efficiency.Type: GrantFiled: August 4, 2014Date of Patent: February 19, 2019Assignee: Gree Electric Appliances, Inc. of ZhuhaiInventors: Zhao Fan, Yabin Ding, Ying Chen, Huaican Liu
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Patent number: 10103586Abstract: A stator and a rotor are mounted inside a case of the permanent magnet motor, and separate the inner cavity of the case into a first inner cavity and a second inner cavity. Axial ventilation holes in communication with the first inner cavity and with the second inner cavity, are disposed in teeth of a stator core of the stator, and each axial ventilation hole is a taper hole extending in a height direction of each tooth. The width of one end of the axial ventilation hole, which is close to a head of the tooth, is greater than the width of the other end of the axial ventilation hole, which is close to a root of the tooth. The taper holes enable fluid to fully carry out exchange heat at the teeth where heat is generated most intensively.Type: GrantFiled: August 1, 2014Date of Patent: October 16, 2018Assignee: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAIInventors: Zhao Fan, Yabin Ding, Ying Chen, Huaican Liu
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Terminal mechanism, permanent magnet adjustable-speed motor and centrifugal refrigeration compressor
Patent number: 9831741Abstract: Disclosed are a terminal mechanism, a permanent magnet adjustable-speed motor and a centrifugal refrigeration compressor. The terminal mechanism comprises a terminal board, power supply connectors and sealing rings; the terminal board is made of steel, and the magnetic permeability ? of the steel is less than or equal to 1.31×10?6 H/m. The terminal board is a flat board having an upper surface and a lower surface, and is provided with terminal holes thereon. The sealing rings are sleeved on the power supply connectors. The power supply connectors are fixed on the terminal board through the terminal holes. The sealing rings are in sealing engagement with the terminal board, so as to reduce heat generated by an electric eddy current.Type: GrantFiled: January 31, 2016Date of Patent: November 28, 2017Assignee: GREE ELECTRICAL APPLIANCES, INC. OF ZHUHAIInventors: Zhao Fan, Yabin Ding, Guoyao Li, Huaican Liu -
Publication number: 20160276883Abstract: A stator and a rotor are mounted inside a case of a permanent magnet motor, and separate the inner cavity of the case into a first inner cavity and a second inner cavity. An air gap is formed between an inner circle surface of the stator and an outer circle surface of the rotor. Axial ventilation holes in communication with the first inner cavity and with the second inner cavity are disposed in teeth of a stator core. The rotor comprises a rotor core and rotor pressing rings disposed in an axial direction at both sides of the rotor core. A partition is disposed between the rotor core and at least one of the rotor pressing rings. An outer edge of the partition extends into the air gap, thus enhancing the air blocking effect and realizing a higher cooling efficiency.Type: ApplicationFiled: August 4, 2014Publication date: September 22, 2016Inventors: Zhao Fan, Yabin Ding, Ying Chen, Huaican Liu
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Publication number: 20160231010Abstract: The disclosure discloses a photovoltaic air conditioning system, which includes a photovoltaic cell array (10), an air conditioning unit (30), a current conversion unit (20) and direct current bus-bars (40 and 50). The air conditioning unit (30) includes a first inverter module (31), the current conversion unit (20) is connected between a public grid (60) and the first inverter module (31), and capacity of the current conversion unit (20) is configured according to a requirement of the photovoltaic cell array (10) or the public grid (60). Direct current generated by the photovoltaic cell array (10) and direct current rectified and output by the current conversion unit (20) are supplied to the first inverter module (31) for supply to the air conditioning unit (30).Type: ApplicationFiled: June 11, 2014Publication date: August 11, 2016Inventors: ZHIGANG ZHAO, YING CHEN, HUAICAN LIU
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Publication number: 20160219759Abstract: The invention discloses a power electronic device cooling system, which includes an air conditioning unit, a coolant pump (31), a bypass throttling element (32) and a cooler. The coolant pump (31) takes liquid from a first condenser (13) of the air conditioning unit, a liquid coolant enters the cooler after being throttled by the bypass throttling element (32), the low-temperature coolant cools a power electronic device at the cooler, and the coolant enters an evaporator (11) of the air conditioning unit to finish a cooling cycle after flowing out of the cooler. The power electronic device cooling system has a good cooling effect, and is high in cooling efficiency, small in equipment size and low in noise, and moreover, the power electronic device may be located in a sealed environment and prevented from influence of dust, and is internally clean and long in operation life.Type: ApplicationFiled: June 25, 2014Publication date: July 28, 2016Inventors: HONGBO LI, HUA LIU, ZHIPING ZHANG, YU ZHOU, HUAICAN LIU
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Publication number: 20160197526Abstract: A stator and a rotor are mounted inside a case of the permanent magnet motor, and separate the inner cavity of the case into a first inner cavity and a second inner cavity. Axial ventilation holes in communication with the first inner cavity and with the second inner cavity, are disposed in teeth of a stator core of the stator, and each axial ventilation hole is a taper hole extending in a height direction of each tooth. The width of one end of the axial ventilation hole, which is close to a head of the tooth, is greater than the width of the other end of the axial ventilation hole, which is close to a root of the tooth. The taper holes enable fluid to fully carry out exchange heat at the teeth where heat is generated most intensively.Type: ApplicationFiled: August 1, 2014Publication date: July 7, 2016Inventors: Zhao FAN, Yabin DING, Ying CHEN, Huaican LIU
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Terminal mechanism, Permanent Magnet Adjustable-Speed Motor and Centrifugal Refrigeration Compressor
Publication number: 20160149464Abstract: Disclosed are a terminal mechanism, a permanent magnet adjustable-speed motor and a centrifugal refrigeration compressor. The terminal mechanism comprises a terminal board, power supply connectors and sealing rings; the terminal board is made of steel, and the magnetic permeability ? of the steel is less than or equal to 1.31×10?6 H/m. The terminal board is a flat board having an upper surface and a lower surface, and is provided with terminal holes thereon. The sealing rings are sleeved on the power supply connectors. The power supply connectors are fixed on the terminal board through the terminal holes. The sealing rings are in sealing engagement with the terminal board, so as to reduce heat generated by an electric eddy current.Type: ApplicationFiled: January 31, 2016Publication date: May 26, 2016Applicant: Gree Electric Appliances, Inc. of ZhuhaiInventors: Zhao FAN, Yabin DING, Guoyao LI, Huaican LIU