Patents by Inventor Shaohua Zhu

Shaohua Zhu 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).

  • Publication number: 20240105351
    Abstract: A method for measuring drop time of a control rod cluster integrated with a rod position measurement device is provided, wherein the method is used to measure the drop time of each control rod cluster, and includes: Si, monitoring a voltage Ua of coils in Group A to capture a rod cluster drop signal; S2, searching a point (tmax, Vmax) with a maximum drop speed or with a local maximum drop speed; S3, retroactively calculating, from tmax, an end of a time period T4 when the control rod cluster starts to drop; S4, retroactively searching, from a minimum value point of a drop reference signal DROPref, a start of the time period T4 when the drop reference signal DROPref drops from a maximum value to 33% thereof; and S5, determining, from tmax forward, a time point t6 when a drop speed of the control rod cluster is lower than 0.
    Type: Application
    Filed: January 14, 2021
    Publication date: March 28, 2024
    Applicant: NUCLEAR POWER OPERATIONS RESEARCH INSTITUTE (NPRI)
    Inventors: Zhengke CHANG, Minghui ZHANG, Yuan HUANG, Ye TIAN, Shaohua XU, Xinxin LIU, Weijian ZHU, Yiming MA, Shengfeng XU, Bo CHAO, Ning TAO, Zihua YANG, Desong LANG, Qichao WANG
  • Patent number: 11189415
    Abstract: A magnetic element includes a magnetic core and a winding. The magnetic core includes a first and second magnetic cover disposed oppositely, and at least one first magnetic column, at least one second magnetic column and at least one common magnetic column disposed between the first and second magnetic covers. The winding includes at least one first winding wound around at least one first magnetic column, and at least one second winding wound around at least one said second magnetic column. A first differential mode inductor is formed with the first winding, the first magnetic column, the first magnetic cover, the common magnetic column and the second magnetic cover. A power inductor or a power transformer is formed with the second winding, the second magnetic column, the first magnetic cover, the common magnetic column and the second magnetic cover.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: November 30, 2021
    Assignee: Delta Electronics (Shanghai) CO., LTD
    Inventors: Zengyi Lu, Haijun Yang, Shaohua Zhu
  • Patent number: 10700022
    Abstract: The present disclosure discloses an inductor structure mounted on a PCB board and a voltage regulator module having the same. The inductor structure includes an inductor core and an inductor winding. The PCB board is provided with at least one hollow part, and the inductor structure further comprises a plurality of copper strips used as the inductor windings of the inductor structure. The copper strips are spaced apart in the hollow part so as to form a plurality of through holes, and the leg of the inductor core is correspondingly inserted into the through hole at the corresponding position of the hollow part.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: June 30, 2020
    Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
    Inventors: Xiangxing Zheng, Wenhua Li, Quansong Luo, Yuanyuan Dan, Haijun Yang, Shaohua Zhu
  • Publication number: 20190363058
    Abstract: The present disclosure discloses an inductor structure mounted on a PCB board and a voltage regulator module having the same. The inductor structure includes an inductor core and an inductor winding. The PCB board is provided with at least one hollow part, and the inductor structure further comprises a plurality of copper strips used as the inductor windings of the inductor structure. The copper strips are spaced apart in the hollow part so as to form a plurality of through holes, and the leg of the inductor core is correspondingly inserted into the through hole at the corresponding position of the hollow part.
    Type: Application
    Filed: August 6, 2019
    Publication date: November 28, 2019
    Inventors: Xiangxing ZHENG, Wenhua LI, Quansong LUO, Yuanyuan DAN, Haijun YANG, Shaohua ZHU
  • Patent number: 10418337
    Abstract: The present disclosure discloses an inductor structure mounted on a PCB board and a voltage regulator module having the same. The inductor structure includes inductor cores and inductor windings. The PCB board is provided with at least one hollow part, and the hollow part comprises a plurality of through holes spaced apart. The legs of the inductor cores are correspondingly inserted into the through holes at the corresponding positions of the hollow part, wherein any two adjacent through holes of the plurality of through holes have a spacer therebetween for use as the inductor winding of the inductor structure, and the thickness of the spacer is less than the thickness of the PCB board.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: September 17, 2019
    Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
    Inventors: Xiangxing Zheng, Wenhua Li, Quansong Luo, Yuanyuan Dan, Haijun Yang, Shaohua Zhu
  • Patent number: 10373754
    Abstract: A power supply module having two output voltages includes an inductor module and a main board. The inductor module includes a first magnetic core, a second magnetic core, an intermediate magnetic core disposed therebetween, a first winding and a second winding. The first winding is disposed on one of a magnetic column of the first magnetic core and a magnetic column of the intermediate magnetic core to form a first inductor. The second winding is disposed on one of a magnetic column of the second magnetic core and a magnetic column of the intermediate magnetic core to form a second inductor. There is no air gap at a portion of the intermediate magnetic core where magnetic paths of the first and second inductors pass through together. The inductor module is disposed on the main board. The first winding and the second winding are electrically connected with the main board.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: August 6, 2019
    Assignee: Delta Electronics (Shanghai) CO., LTD
    Inventors: Zengyi Lu, Shaohua Zhu, Haijun Yang
  • Publication number: 20190019610
    Abstract: A magnetic element includes a magnetic core and a winding. The magnetic core includes a first and second magnetic cover disposed oppositely, and at least one first magnetic column, at least one second magnetic column and at least one common magnetic column disposed between the first and second magnetic covers. The winding includes at least one first winding wound around at least one first magnetic column, and at least one second winding wound around at least one said second magnetic column. A first differential mode inductor is formed with the first winding, the first magnetic column, the first magnetic cover, the common magnetic column and the second magnetic cover. A power inductor or a power transformer is formed with the second winding, the second magnetic column, the first magnetic cover, the common magnetic column and the second magnetic cover.
    Type: Application
    Filed: June 20, 2018
    Publication date: January 17, 2019
    Applicant: Delta Electronics (Shanghai) CO., LTD
    Inventors: Zengyi LU, Haijun YANG, Shaohua ZHU
  • Publication number: 20180374802
    Abstract: The present disclosure discloses an inductor structure mounted on a PCB board and a voltage regulator module having the same. The inductor structure includes inductor cores and inductor windings. The PCB board is provided with at least one hollow part, and the hollow part comprises a plurality of through holes spaced apart. The legs of the inductor cores are correspondingly inserted into the through holes at the corresponding positions of the hollow part, wherein any two adjacent through holes of the plurality of through holes have a spacer therebetween for use as the inductor winding of the inductor structure, and the thickness of the spacer is less than the thickness of the PCB board.
    Type: Application
    Filed: March 1, 2018
    Publication date: December 27, 2018
    Inventors: Xiangxing ZHENG, Wenhua LI, Quansong LUO, Yuanyuan DAN, Haijun YANG, Shaohua ZHU
  • Patent number: 9959971
    Abstract: The present disclosure discloses an inductor and a converter having the same. The inductor includes a magnetic core and a winding, the winding is provided within a window of the magnetic core, the winding includes a main body part and a sampling part, the main body part and the sampling part are connected in series, and a length ratio of the sampling part to the main body part is less than 2; wherein the main body part is formed of a low resistivity conductive material, the sampling part is formed of a low temperature coefficient conductive material, and a current flowing through the inductor is sampled across two ends of the sampling part. The inductor can obtain a current detection signal with high accuracy and low temperature drift with a compact structure, without increasing detection loss.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: May 1, 2018
    Assignee: Delta Electronics (Shanghai) CO., LTD
    Inventors: Yahong Xiong, Xiangxing Zheng, Shaohua Zhu
  • Publication number: 20180108470
    Abstract: The present disclosure discloses an inductor and a converter having the same. The inductor includes a magnetic core and a winding, the winding is provided within a window of the magnetic core, the winding includes a main body part and a sampling part, the main body part and the sampling part are connected in series, and a length ratio of the sampling part to the main body part is less than 2; wherein the main body part is formed of a low resistivity conductive material, the sampling part is formed of a low temperature coefficient conductive material, and a current flowing through the inductor is sampled across two ends of the sampling part. The inductor can obtain a current detection signal with high accuracy and low temperature drift with a compact structure, without increasing detection loss.
    Type: Application
    Filed: December 11, 2017
    Publication date: April 19, 2018
    Applicant: Delta Electronics (Shanghai) CO., LTD
    Inventors: Yahong XIONG, Xiangxing ZHENG, Shaohua ZHU
  • Patent number: 9875842
    Abstract: The present disclosure discloses an inductor and a converter having the same. The inductor includes a magnetic core and a winding, the winding is provided within a window of the magnetic core, the winding includes a main body part and a sampling part, the main body part and the sampling part are connected in series, and a length ratio of the sampling part to the main body part is less than 2; wherein the main body part is formed of a low resistivity conductive material, the sampling part is formed of a low temperature coefficient conductive material, and a current flowing through the inductor is sampled across two ends of the sampling part. The inductor can obtain a current detection signal with high accuracy and low temperature drift with a compact structure, without increasing detection loss.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: January 23, 2018
    Assignee: Delta Electronics (Shanghai) CO., LTD
    Inventors: Yahong Xiong, Yunyun Gao, Xiangxing Zheng, Shaohua Zhu
  • Publication number: 20170287615
    Abstract: A power supply module having two output voltages includes an inductor module and a main board. The inductor module includes a first magnetic core, a second magnetic core, an intermediate magnetic core disposed therebetween, a first winding and a second winding. The first winding is disposed on one of a magnetic column of the first magnetic core and a magnetic column of the intermediate magnetic core to form a first inductor. The second winding is disposed on one of a magnetic column of the second magnetic core and a magnetic column of the intermediate magnetic core to form a second inductor. There is no air gap at a portion of the intermediate magnetic core where magnetic paths of the first and second inductors pass through together. The inductor module is disposed on the main board. The first winding and the second winding are electrically connected with the main board.
    Type: Application
    Filed: March 2, 2017
    Publication date: October 5, 2017
    Applicant: Delta Electronics (Shanghai) CO., LTD
    Inventors: Zengyi LU, Shaohua ZHU, Haijun YANG
  • Publication number: 20160352821
    Abstract: Embodiments of the present application provide a method and system for allocating resources for a virtual host. During operation, the system may receive a request to generate the virtual host. The system may assign a server to the virtual host based on the request. The available resources on the assigned server satisfy resource requirements of the virtual host. The available resources of the assigned server and the resource requirements of the virtual host are measured using a same resource unit. The system may then allocate resources required by the virtual host on the assigned server.
    Type: Application
    Filed: May 19, 2016
    Publication date: December 1, 2016
    Applicant: Alibaba Group Holding Limited
    Inventor: Shaohua Zhu
  • Publication number: 20150332844
    Abstract: The present disclosure discloses an inductor and a converter having the same. The inductor includes a magnetic core and a winding, the winding is provided within a window of the magnetic core, the winding includes a main body part and a sampling part, the main body part and the sampling part are connected in series, and a length ratio of the sampling part to the main body part is less than 2; wherein the main body part is formed of a low resistivity conductive material, the sampling part is formed of a low temperature coefficient conductive material, and a current flowing through the inductor is sampled across two ends of the sampling part.
    Type: Application
    Filed: April 16, 2015
    Publication date: November 19, 2015
    Inventors: Yahong XIONG, Yunyun GAO, Xiangxing ZHENG, Shaohua ZHU
  • Publication number: 20150270049
    Abstract: The present application discloses a magnetic element comprising two opposed cores, a conductive winding disposed therebetween, and gaps comprised between said two cores; at least one of the two cores comprising a plurality of joint faces and a plurality of bosses, the joint faces being adapted for jointing the opposed core, and the plurality of bosses being disposed on the joint faces to provide a mechanical support for the opposed core, wherein the bosses have a height dimension which is used for substantially controlling the sizes of the gaps. According to the present application, bosses are disposed on the joint faces of a core so that gaps are dispersed over all the magnetic columns of the core, thereby effectively reducing a range of inductance tolerance and improving the consistency of the magnetic element.
    Type: Application
    Filed: March 18, 2015
    Publication date: September 24, 2015
    Inventors: Zengyi Lu, Shaohua Zhu, Weilong Xia, Jinfa Zhang