Patents by Inventor Dazhao Zha
Dazhao Zha 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: 11913691Abstract: An electronic expansion valve and a thermal management assembly. The electronic expansion valve has a valve port and a valve core. A valve body includes a first flow portion, a second flow portion, a first cavity and a second cavity. The first flow portion comprises a first connection section and a first subsection, and the first subsection is directly in communication with the first cavity. The second flow portion comprises a second connection section and a second subsection, and the second subsection is directly in communication with the second cavity. In a clockwise direction, an angle formed between at least one of the center line of the first subsection and the center line of the second subsection and the center line of the valve core is an acute angle.Type: GrantFiled: January 13, 2020Date of Patent: February 27, 2024Assignee: Zhejiang Sanhua Intelligent Controls Co., Ltd.Inventors: Quanfeng Huang, Yingchong Lu, Rongrong Zhang, Dazhao Zha, Wei Zhang
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Patent number: 11761557Abstract: Provided are an electric valve, a thermal management assembly, and an air conditioning system. The electric valve includes a valve body, a circuit board, and a sensor. The valve body has a passage, and the sensor is connected to the circuit board in at least one of an electric connection mode and a signal connection mode. The sensor is configured to detect at least one of a pressure or a temperature of a working medium in the passage. At least one of the valve body or a housing of the sensor includes a metal portion, and a reference ground of the circuit board is electrically connected directly or indirectly to the metal portion.Type: GrantFiled: November 27, 2019Date of Patent: September 19, 2023Assignee: ZHEJIANG SANHUA INTELLIGENT CONTROLS CO., LTDInventors: Quanfeng Huang, Lulu Zhang, Rongrong Zhang, Dazhao Zha, Yingchong Lu, Wei Zhang
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Patent number: 11686512Abstract: Provided are an electronic expansion valve, a manufacturing method thereof and a thermal management assembly. The electronic expansion valve includes a valve body, a valve component and a control portion. The valve component includes a valve seat, a valve core and a rotor assembly. The valve seat is formed with a valve port, the rotor assembly is capable of driving the valve core to move relative to the valve seat to adjust an opening degree of the valve port. The control portion includes a cover body, a stator assembly and an electric control board. The stator assembly is in electrical connection to, or is in signal connection to, or is in electrical connection to and in signal connection to the electric control board. The electronic expansion valve further includes a sensor. The control portion provided with a control cavity. The electric control board is disposed in the control cavity.Type: GrantFiled: July 16, 2019Date of Patent: June 27, 2023Assignee: ZHEJIANG SANHUA INTELLIGENT CONTROLS CO., LTDInventors: Rongrong Zhang, Dazhao Zha, Yingchong Lu, Lei Zhou
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Patent number: 11619317Abstract: An electrically operated valve includes a rotor, a stator assembly, a sleeve, a valve assembly, a box body, a circuit board assembly, and a valve port. The stator assembly is disposed outside the rotor, and the stator assembly includes a coil assembly. The sleeve is configured to isolate the stator assembly from the rotor. The valve assembly includes a spool. The box body has a cavity, and the circuit board assembly is accommodated in the cavity. The rotor is configured to drive the spool to move close to or away from the valve port.Type: GrantFiled: June 14, 2019Date of Patent: April 4, 2023Assignee: ZHEJIANG SANHUA INTELLIGENT CONTROLS CO., LTD.Inventors: Rongrong Zhang, Dazhao Zha, Yingchong Lu, Lei Zhou
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Patent number: 11320060Abstract: Provided are an electric valve and a thermal management assembly. The electric valve includes a valve body, the valve body includes a first portion and a second portion, and the valve body is fixedly connected to a cover body through the first portion. The second portion includes a third wall. The first portion includes a first side wall and a second side wall, the first side wall and the second side wall are disposed opposite to each other, the first side wall and the second side wall are located on two sides of the valve body, and the third wall and the first side wall are located on a same side of the valve body.Type: GrantFiled: November 25, 2019Date of Patent: May 3, 2022Inventors: Quanfeng Huang, Dazhao Zha, Rongrong Zhang, Yingchong Lu, Wei Zhang
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Publication number: 20220003466Abstract: An electronic expansion valve and a thermal management assembly. The electronic expansion valve has a valve port and a valve core. A valve body includes a first flow portion, a second flow portion, a first cavity and a second cavity. The first flow portion comprises a first connection section and a first subsection, and the first subsection is directly in communication with the first cavity. The second flow portion comprises a second connection section and a second subsection, and the second subsection is directly in communication with the second cavity. In a clockwise direction, an angle formed between at least one of the center line of the first subsection and the center line of the second subsection and the center line of the valve core is an acute angle.Type: ApplicationFiled: January 13, 2020Publication date: January 6, 2022Applicant: Zhejiang Sanhua Intelligent Controls Co., Ltd.Inventors: Quanfeng Huang, Yingchong Lu, Rongrong Zhang, Dazhao Zha, Wei Zhang
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Publication number: 20210332904Abstract: Provided are an electric valve and a thermal management assembly. The electric valve includes a valve body, the valve body includes a first portion and a second portion, and the valve body is fixedly connected to a cover body through the first portion. The second portion includes a third wall. The first portion includes a first side wall and a second side wall, the first side wall and the second side wall are disposed opposite to each other, the first side wall and the second side wall are located on two sides of the valve body, and the third wall and the first side wall are located on a same side of the valve body.Type: ApplicationFiled: November 25, 2019Publication date: October 28, 2021Applicant: ZHEJIANG SANHUA INTELLIGENT CONTROLS CO., LTD.Inventors: Quanfeng HUANG, Dazhao ZHA, Rongrong ZHANG, Yingchong LU, Wei ZHANG
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Publication number: 20210270384Abstract: Provided are an electric valve, a thermal management assembly, and an air conditioning system. The electric valve includes a valve body, a circuit board, and a sensor. The valve body has a passage, and the sensor is connected to the circuit board in at least one of an electric connection mode and a signal connection mode. The sensor is configured to detect at least one of a pressure or a temperature of a working medium in the passage. At least one of the valve body or a housing of the sensor includes a metal portion, and a reference ground of the circuit board is electrically connected directly or indirectly to the metal portion.Type: ApplicationFiled: November 27, 2019Publication date: September 2, 2021Applicant: ZHEJIANG SANHUA INTELLIGENT CONTROLS CO., LTD.Inventors: Quanfeng HUANG, Lulu ZHANG, Rongrong ZHANG, Dazhao ZHA, Yingchong LU, Wei ZHANG
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Publication number: 20210254742Abstract: An electrically operated valve includes a rotor, a stator assembly, a sleeve, a valve assembly, a box body, a circuit board assembly, and a valve port. The stator assembly is disposed outside the rotor, and the stator assembly includes a coil assembly. The sleeve is configured to isolate the stator assembly from the rotor. The valve assembly includes a spool. The box body has a cavity, and the circuit board assembly is accommodated in the cavity. The rotor is configured to drive the spool to move close to or away from the valve port.Type: ApplicationFiled: June 14, 2019Publication date: August 19, 2021Applicant: ZHEJIANG SANHUA INTELLIGENT CONTROLS CO., LTDInventors: Rongrong Zhang, Dazhao Zha, Yingchong Lu, Lei Zhou
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Publication number: 20210033322Abstract: Provided are an electronic expansion valve, a manufacturing method thereof and a thermal management assembly. The electronic expansion valve includes a valve body, a valve component and a control portion. The valve component includes a valve seat, a valve core and a rotor assembly. The valve seat is formed with a valve port, the rotor assembly is capable of driving the valve core to move relative to the valve seat to adjust an opening degree of the valve port. The control portion includes a cover body, a stator assembly and an electric control board. The stator assembly is in electrical connection to, or is in signal connection to, or is in electrical connection to and in signal connection to the electric control board. The electronic expansion valve further includes a sensor. The control portion provided with a control cavity. The electric control board is disposed in the control cavity.Type: ApplicationFiled: July 16, 2019Publication date: February 4, 2021Applicant: HANGZHOU SANHUA RESEARCH INSTITUTE CO., LTD.Inventors: Rongrong Zhang, Dazhao Zha, Yingchong Lu, Lei Zhou