Patents by Inventor Changxun Gu
Changxun Gu 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: 10256063Abstract: A controller for an alternating current contactor includes: a filtering and rectification circuit that filters and rectifies external alternating current; an electromagnet component driven by an output of the filtering and rectification circuit that performs actions of attraction, holding or releasing; a power transistor circuit connected to the electromagnet component; and a microcontroller that controls the power transistor circuit to control the actions performed by the electromagnet component. The controller further includes a voltage control loop that provides a voltage feedback signal and a current control loop that provides a current feedback signal to the microcontroller. The microcontroller generates a control signal according to the voltage feedback signal.Type: GrantFiled: July 23, 2015Date of Patent: April 9, 2019Assignees: SEARI ELECTRIC TECHNOLOGY CO., LTD., ZHEJIANG CHINT ELECTRICS CO., LTD.Inventors: Fei Yu, Changxun Gu, Shunfeng Ge, Di Zhang, Yugang Feng, Yawen Shi, Ping Zeng
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Patent number: 9847197Abstract: The present invention discloses a protection module for a control and protective switching device, comprising a control power supply processing unit, an auxiliary power supply processing unit, a power supply converting unit, a signal processing and controlling unit, a trip electromagnet driving unit, a control electromagnet driving unit, and a man-machine interaction device. The control power supply processing unit and the auxiliary power supply processing unit receive a power supply signal from a high voltage power supply, and process the signal for supplying power for other components. The signal processing and controlling unit receives a mutual-induction signal from a current mutual inductor, outputs a first control signal and a second control signal to the trip electromagnet driving unit and the control electromagnet driving unit, and receives a first feedback signal and a second feedback signal from an operation mechanism and a control electromagnet.Type: GrantFiled: July 10, 2013Date of Patent: December 19, 2017Assignees: SEARI ELECTRIC TECHNOLOGY CO., LTD., ZHEJIANG CHINT ELECTRICS CO., LTD.Inventors: Changxun Gu, Di Zhang, Huiyu Ji, Ping Zeng, Feng Jia, Hong Xi
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Publication number: 20170213677Abstract: A controller for an alternating current contactor includes: a filtering and rectification circuit that filters and rectifies external alternating current; an electromagnet component driven by an output of the filtering and rectification circuit that performs actions of attraction, holding or releasing; a power transistor circuit connected to the electromagnet component; and a microcontroller that controls the power transistor circuit to control the actions performed by the electromagnet component. The controller further includes a voltage control loop that provides a voltage feedback signal and a current control loop that provides a current feedback signal to the microcontroller. The microcontroller generates a control signal according to the voltage feedback signal.Type: ApplicationFiled: July 23, 2015Publication date: July 27, 2017Applicants: SEARI ELECTRIC TECHNOLOGY CO., LTD., ZHEJIANG CHINT ELECTRICS CO., LTD.Inventors: Fei Yu, Changxun Gu, Shunfeng Ge, Di Zhang, Yugang Feng, Yawen Shi, Ping Zeng
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Patent number: 9350157Abstract: Disclosed is a control and protection device for a low-voltage electrical apparatus, comprising a pedestal and a control and protection module. The control and protection module may be plugged into the pedestal and is replaceable. The pedestal comprises a base and a housing, and is further provided with a moving contact, a static contact, and a current conductor connected to a main circuit current; a control electromagnet operation mechanism for controlling close and open of the moving contact and the static contact according to a control signal, and maintaining a close or open status of the moving contact and the static contact; a manual operation knob providing a control signal for controlling the close and open of the moving contact and the static contact; a control contact connected to the manual operation knob; and a current sensor for detecting a current that flows through the main circuit current conductor and generating a sensing signal.Type: GrantFiled: December 25, 2012Date of Patent: May 24, 2016Assignees: SEARI ELECTRIC TECHNOLOGY CO., LTD., ZHEJIANG CHINT ELECTRICS CO., LTD.Inventors: Hong Xi, Ping Zeng, Huiyu Ji, Feng Jia, Changxun Gu, Di Zhang, Beiming Huang, Jianrong Lin
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Patent number: 9218930Abstract: The present invention discloses a contact structure of a low-voltage electrical apparatus. The contact structure is in a dual-breakpoint form, and comprises: two U-shaped static contacts, the U-shaped static contact enabling the current direction in the static contact to be opposite to the current direction in a movable contact; a contact bridge; two movable contacts, disposed on the contact bridge, and respectively corresponding to the two static contacts; a contact support member, disposed on the movable contacts and connected to the movable contacts; two main contact springs, symmetrically disposed under the movable contacts and forming an angle with the contact bridge; and a spring support member, disposed under the two movable contacts and connected to the two main contact springs.Type: GrantFiled: December 25, 2012Date of Patent: December 22, 2015Assignees: SEARI ELECTRIC TECHNOLOGY CO., LTD., ZHEJIANG CHINT ELECTRICS CO., LTD.Inventors: Hong Xi, Feng Jia, Ping Zeng, Changxun Gu
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Publication number: 20150138685Abstract: The present invention discloses a protection module for a control and protective switching device, comprising a control power supply processing unit, an auxiliary power supply processing unit, a power supply converting unit, a signal processing and controlling unit, a trip electromagnet driving unit, a control electromagnet driving unit, and a man-machine interaction device. The control power supply processing unit and the auxiliary power supply processing unit receive a power supply signal from a high voltage power supply, and process the signal for supplying power for other components. The signal processing and controlling unit receives a mutual-induction signal from a current mutual inductor, outputs a first control signal and a second control signal to the trip electromagnet driving unit and the control electromagnet driving unit, and receives a first feedback signal and a second feedback signal from an operation mechanism and a control electromagnet.Type: ApplicationFiled: July 10, 2013Publication date: May 21, 2015Applicants: ZHEJIANG CHINT ELECTRICS CO., LTD., SEARI ELECTRIC TECHNOLOGY CO., LTD.Inventors: Changxun Gu, Di Zhang, Huiyu Ji, Ping Zeng, Feng Jia, Hong Xi
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Publication number: 20150091678Abstract: The present invention discloses a contact structure of a low-voltage electrical apparatus. The contact structure is in a dual-breakpoint form, and comprises: two U-shaped static contacts, the U-shaped static contact enabling the current direction in the static contact to be opposite to the current direction in a movable contact; a contact bridge; two movable contacts, disposed on the contact bridge, and respectively corresponding to the two static contacts; a contact support member, disposed on the movable contacts and connected to the movable contacts; two main contact springs, symmetrically disposed under the movable contacts and forming an angle with the contact bridge; and a spring support member, disposed under the two movable contacts and connected to the two main contact springs.Type: ApplicationFiled: December 25, 2012Publication date: April 2, 2015Inventors: Hong Xi, Feng Jia, Ping Zeng, Changxun Gu
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Publication number: 20140368961Abstract: Disclosed is a control and protection device for a low-voltage electrical apparatus, comprising a pedestal and a control and protection module. The control and protection module may be plugged into the pedestal and is replaceable. The pedestal comprises a base and a housing, and is further provided with a moving contact, a static contact, and a current conductor connected to a main circuit current; a control electromagnet operation mechanism for controlling close and open of the moving contact and the static contact according to a control signal, and maintaining a close or open status of the moving contact and the static contact; a manual operation knob providing a control signal for controlling the close and open of the moving contact and the static contact; a control contact connected to the manual operation knob; and a current sensor for detecting a current that flows through the main circuit current conductor and generating a sensing signal.Type: ApplicationFiled: December 25, 2012Publication date: December 18, 2014Applicants: ZHEJIANG CHINT ELECTRICS CO., LTD., SEARI ELECTRIC TECHNOLOGY CO., LTD.Inventors: Hong Xi, Ping Zeng, Huiyu Ji, Feng Jia, Changxun Gu, Di Zhang, Beiming Huang, Jianrong Lin