Patents by Inventor Hengyi SU

Hengyi SU 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).

  • Patent number: 10381877
    Abstract: An electrical energy receiving end capable of overvoltage protection and a wireless electrical energy transmission device are provided. An electrical energy receiving coil is divided into a first receiving coil and a second receiving coil, so that under normal operation the first receiving coil and the second receiving coil jointly resonate with an impedance matching network to receive energy. When the electrical energy receiving end has an overvoltage, the first receiving coil and the impedance matching network (or the second receiving coil and the impedance matching network) form a loop, and due to the impedance mismatch, the energy received by the electrical energy receiving end is greatly reduced to solve the problem of overvoltage at the electrical energy receiving end.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: August 13, 2019
    Assignee: Ningbo WeiE Electronic Technology Co., Ltd.
    Inventor: Hengyi Su
  • Patent number: 10326310
    Abstract: A high-efficiency electrical energy transmitting end and a wireless electrical energy transmission device are provided. A soft-switching control circuit controls the voltage waveform between two ends of a switching device of an inverter circuit. During disconnection of the switching device, a voltage waveform between the drain electrode and the source electrode is a waveform in the form of a fundamental wave superimposed with a third harmonic, enabling the switching device to be turned on at zero voltage to decrease the switching loss. Through a current regulation circuit, the primary transmitting current is controlled to have constant frequency and constant amplitude to ensure that the primary transmitting energy won't be affected by the changes of the coupling and load and to enhance the transmission efficiency. The transmission efficiency of the wireless electrical energy transmission device of the present invention is high and the reliability is better.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: June 18, 2019
    Assignee: Ningbo WeiE Electronic Technology Co., Ltd.
    Inventor: Hengyi Su
  • Patent number: 10320237
    Abstract: An electromagnetic shielding layer and a wireless electrical energy transmission device having the electromagnetic shielding layer are provided. A first shielding layer is composed of a hollow area and a solid area. At the hollow area, because the magnetoresistance of the air is greater than the magnetoresistance of the magnetic sheet, it is not easy for the magnetic lines of flux of the high frequency magnetic field of the primary transmitting coil to pass the hollow area, so that the inductance value of the primary transmitting coil won't be affected easily by the change of the magnetoresistance during working Under the receiving coil is provided with magnetic sheet as much as possible to ensure the coupling of the receiving coil and the transmitting coil and to enhance the transmission efficiency.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: June 11, 2019
    Assignee: Ningbo WeiE Electronic Technology Co., Ltd.
    Inventor: Hengyi Su
  • Publication number: 20190067999
    Abstract: A wireless charging management system and a wireless power transmitting terminal are disclosed. By managing a plurality of wireless power transmitting terminals distributed at different geographic positions through a server, the user can obtain position information and state information of the wireless power transmitting terminal through the client terminal, and at the meanwhile, the wireless power transmitting terminal can operate in response to the control of the server, which enables the user to use the wireless charging device in a shared manner conveniently.
    Type: Application
    Filed: July 12, 2018
    Publication date: February 28, 2019
    Applicant: NINGBO WEIE ELECTRONICS TECHNOLOGY LTD.
    Inventors: Feng Yu, Weiyi Feng, Hengyi Su, Min Fu, Cong Yin
  • Patent number: 10204731
    Abstract: Disclosed are a transmitting coil structure and wireless power transmitting terminal using the transmitting coil structure. The transmitting coil has a first winding and a second winding connected in parallel, so that the transmitting coil has a smaller inductance than the conventional transmitting coil in the condition of the same spatial magnetic field. When the receiving terminal is near the transmitting coil, the inductance of the transmitting coil is smaller, and the influence of the receiving terminal to the inductance of the transmitting coil is reduced significantly, and the effect to the impedance matching of the primary side transmitting coil and the resonant capacitor will not be too large, so as to improve the power transmission efficiency of the system.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: February 12, 2019
    Assignee: Ningbo WeiE Electronic Technology Co., Ltd.
    Inventor: Hengyi Su
  • Patent number: 10186908
    Abstract: An efficient power transmitting terminal, a contactless power transmission device and a power transmission method are disclosed herein. By adjusting the equivalent output impedance of the DC-AC voltage converter through a soft-switching control circuit composed of an inductor or an inductor and a capacitor, the equivalent output impedance is maintained at inductive impedance. According to the feature of current of inductive impedance lagging behind the voltage, the voltage of the switching device in the DC-AC voltage converter reduces to zero before switching-on, to achieve zero-voltage switching-on.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: January 22, 2019
    Assignee: Ningbo WeiE Electronic Technology Co., Ltd.
    Inventor: Hengyi Su
  • Patent number: 10063103
    Abstract: A contactless power transmission device and a power transmission method are disclosed herein. When a rectifier filter circuit receives high-frequency AC output from receiving coil and after a full-bridge rectifying and filtering process, DC voltage signal is obtained. When the DC voltage after rectifying and filtering is detected to exceed the preset value, a current loop is formed using a switch protection circuit, an impedance matching circuit and a receiving coil, to transfer the energy of receiving coil until the voltage drop to no higher than the preset value. Of which, the switch protection circuit is connected between the impedance matching network and ground, when the power transmission device is in normal working, the switch protection circuit does not work; when an overvoltage occurs, the switch protection circuit can switch on/off, to reduce the value of DC voltage.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: August 28, 2018
    Assignee: Ningbo WeiE Electronic Technology Co., Ltd
    Inventor: Hengyi Su
  • Publication number: 20170187244
    Abstract: An electrical energy receiving end capable of overvoltage protection and a wireless electrical energy transmission device are provided. An electrical energy receiving coil is divided into a first receiving coil and a second receiving coil, so that under normal operation the first receiving coil and the second receiving coil jointly resonate with an impedance matching network to receive energy. When the electrical energy receiving end has an overvoltage, the first receiving coil and the impedance matching network (or the second receiving coil and the impedance matching network) form a loop, and due to the impedance mismatch, the energy received by the electrical energy receiving end is greatly reduced to solve the problem of overvoltage at the electrical energy receiving end.
    Type: Application
    Filed: December 20, 2016
    Publication date: June 29, 2017
    Applicant: NINGBO WEIE ELECTRONIC TECHNOLOGY CO., LTD.
    Inventor: Hengyi SU
  • Publication number: 20170117083
    Abstract: Disclosed are a transmitting coil structure and wireless power transmitting terminal using the transmitting coil structure. The transmitting coil has a first winding and a second winding connected in parallel, so that the transmitting coil has a smaller inductance than the conventional transmitting coil in the condition of the same spatial magnetic field. When the receiving terminal is near the transmitting coil, the inductance of the transmitting coil is smaller, and the influence of the receiving terminal to the inductance of the transmitting coil is reduced significantly, and the effect to the impedance matching of the primary side transmitting coil and the resonant capacitor will not be too large, so as to improve the power transmission efficiency of the system.
    Type: Application
    Filed: October 24, 2016
    Publication date: April 27, 2017
    Applicant: NINGBO WEIE ELECTRONIC TECHNOLOGY CO., LTD.
    Inventor: Hengyi SU
  • Publication number: 20170093219
    Abstract: A high-efficiency electrical energy transmitting end and a wireless electrical energy transmission device are provided. A soft-switching control circuit controls the voltage waveform between two ends of a switching device of an inverter circuit. During disconnection of the switching device, a voltage waveform between the drain electrode and the source electrode is a waveform in the form of a fundamental wave superimposed with a third harmonic, enabling the switching device to be turned on at zero voltage to decrease the switching loss. Through a current regulation circuit, the primary transmitting current is controlled to have constant frequency and constant amplitude to ensure that the primary transmitting energy won't be affected by the changes of the coupling and load and to enhance the transmission efficiency. The transmission efficiency of the wireless electrical energy transmission device of the present invention is high and the reliability is better.
    Type: Application
    Filed: September 27, 2016
    Publication date: March 30, 2017
    Applicant: NINGBO WEIE ELECTRONIC TECHNOLOGY CO., LTD.
    Inventor: Hengyi SU
  • Publication number: 20170070100
    Abstract: An electromagnetic shielding layer and a wireless electrical energy transmission device having the electromagnetic shielding layer are provided. A first shielding layer is composed of a hollow area and a solid area. At the hollow area, because the magnetoresistance of the air is greater than the magnetoresistance of the magnetic sheet, it is not easy for the magnetic lines of flux of the high frequency magnetic field of the primary transmitting coil to pass the hollow area, so that the inductance value of the primary transmitting coil won't be affected easily by the change of the magnetoresistance during working Under the receiving coil is provided with magnetic sheet as much as possible to ensure the coupling of the receiving coil and the transmitting coil and to enhance the transmission efficiency.
    Type: Application
    Filed: September 7, 2016
    Publication date: March 9, 2017
    Applicant: Ningbo WeiE Electronic Technology Co., Ltd.
    Inventor: Hengyi SU
  • Publication number: 20170040844
    Abstract: An efficient power transmitting terminal, a contactless power transmission device and a power transmission method are disclosed herein. By adjusting the equivalent output impedance of the DC-AC voltage converter through a soft-switching control circuit composed of an inductor or an inductor and a capacitor, the equivalent output impedance is maintained at inductive impedance. According to the feature of current of inductive impedance lagging behind the voltage, the voltage of the switching device in the DC-AC voltage converter reduces to zero before switching-on, to achieve zero-voltage switching-on.
    Type: Application
    Filed: July 6, 2016
    Publication date: February 9, 2017
    Inventor: Hengyi SU
  • Publication number: 20170033612
    Abstract: A contactless power transmission device and a power transmission method are disclosed herein. When a rectifier filter circuit receives high-frequency AC output from receiving coil and after a full-bridge rectifying and filtering process, DC voltage signal is obtained. When the DC voltage after rectifying and filtering is detected to exceed the preset value, a current loop is formed using a switch protection circuit, an impedance matching circuit and a receiving coil, to transfer the energy of receiving coil until the voltage drop to no higher than the preset value. Of which, the switch protection circuit is connected between the impedance matching network and ground, when the power transmission device is in normal working, the switch protection circuit does not work; when an overvoltage occurs, the switch protection circuit can switch on/off, to reduce the value of DC voltage.
    Type: Application
    Filed: June 30, 2016
    Publication date: February 2, 2017
    Inventor: Hengyi SU