Patents by Inventor Zengyi Lu

Zengyi Lu 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: 12198842
    Abstract: The disclosure provides a magnetic assembly and a power supply apparatus. The magnetic assembly of the present disclosure includes: a first magnetic core, a plurality of windings, a housing and a second magnetic core, where the first magnetic core has a winding area, and the plurality of windings are wound with an interval on the winding area of the first magnetic core; the housing has an accommodating cavity, and at least part of the plurality of windings is accommodated in the accommodating cavity, and the second magnetic core is arranged between a cavity wall of the accommodating cavity and the plurality of windings. According to the present disclosure, parasitic parameters such as leakage inductance of the magnetic assembly are relatively stable, and the power supply efficiency is improved and higher.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: January 14, 2025
    Assignee: Delta Electronics (Shanghai) Co., Ltd.
    Inventors: Zengyi Lu, Haijun Yang, Shiwei Liu, Jinfa Zhang
  • Patent number: 12068674
    Abstract: An integrated inductor and a power conversion module including the integrated inductor are provided. The integrated inductor includes a magnetic core, the magnetic core including two cover plates, two side columns and two central columns between the two side columns, and two windings wound around the two central columns respectively, forming two inductors. Each operating current flowing through the two windings includes a corresponding high-frequency current component, a phase difference between the high-frequency current components of the operating currents flowing through the two windings is 180 degrees.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: August 20, 2024
    Assignee: Delta Electronics (Shanghai) CO., LTD
    Inventors: Haijun Yang, Zengyi Lu, Lijun Zhou
  • Publication number: 20240242881
    Abstract: An integrated magnetic element includes an base; a current sensor disposed on the base; and a transformer provided on the base through which the current sensor and the transformer are integrated into one part, the transformer including a magnetic core, a first winding comprising at least one wire, and a second winding, wherein a part of section of the one wire of the first winding passes through the current sensor, and current value of the part of section of the one wire is detected by the current sensor so as to obtain a total current value of the first winding of the transformer.
    Type: Application
    Filed: March 28, 2024
    Publication date: July 18, 2024
    Inventors: Xiaoxia SUN, Chunmei WANG, Jun SUN, Haijun YANG, Zengyi LU
  • Patent number: 12027299
    Abstract: Present disclosure provides a winding assembly and a magnetic element. The winding assembly includes a circuit board with a central hole and a first winding wound around the central hole in the circuit board; the first winding includes N turns of coil on at least two wiring layers; a second end of at least one turn of coil on a first wiring layers is connected to a first end of next turn of coil at corresponding position on a second wiring layer of the circuit board. The magnetic element includes a magnetic core and a winding assembly sleeved on a magnetic leg.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: July 2, 2024
    Assignee: Delta Electronics (Shanghai) CO., LTD
    Inventors: Qi Fu, Haibin Song, Daofei Xu, Zengyi Lu, Jinfa Zhang
  • Patent number: 11984255
    Abstract: An integrated magnetic element includes an accommodating part; a current sensor disposed on the accommodating part; and a transformer disposed on the accommodating part. The transformer includes a magnetic core, a first winding including a plurality of wires, and a second winding, wherein some of the plurality of wires passes through the current sensor to shunt and detect current flowing through the first winding, and current values of the wires are detected by the current sensor to obtain a total current value of the first winding of the transformer according to a shunt ratio by the winding construction of the preset transformer.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: May 14, 2024
    Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
    Inventors: Xiaoxia Sun, Chunmei Wang, Jun Sun, Haijun Yang, Zengyi Lu
  • Patent number: 11961657
    Abstract: A multi-coil inductor includes a plurality of stacked inductor units. Each of the inductor units comprises: a magnetic core in which a magnetic path is formed; and a plurality of coils which are wound around the magnetic core to form at least one winding pair. Wherein a part of the magnetic path between the adjacent inductor units is shared. In the present invention, the leakage inductance is controlled and the may be magnetic saturation of magnetic core avoided by adjusting series and parallel connections among the coils.
    Type: Grant
    Filed: January 9, 2023
    Date of Patent: April 16, 2024
    Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
    Inventors: Zengyi Lu, Haijun Yang, Shiwei Liu
  • Patent number: 11961658
    Abstract: The present disclosure provides a three-phase inductor and a power module. A current flowing through each inductor of the three-phase inductor comprises a power-frequency current component and a high-frequency current component. The three-phase inductor includes a magnetic core and a winding. The magnetic core includes a first cover plate, a second cover plate and a magnetic pillar unit; the winding wound on the first magnetic pillar and the second magnetic pillar of the corresponding magnetic pillar unit, and a current flowing through the winding surrounds said first magnetic pillar and said second magnetic pillar in an opposite direction.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: April 16, 2024
    Assignee: Delta Electronics (Shanghai) CO., LTD
    Inventors: Zengyi Lu, Tianding Hong
  • Publication number: 20240071674
    Abstract: The present disclosure provides a magnetic component and a power module, relating to the technical field of power electronics; the magnetic component provided by the present disclosure includes: a first heat sink, a magnetic core extending in a transverse direction and a winding structure wound on the magnetic core, the winding structure includes at least a first coil and a second coil arranged adjacently along the transverse direction, a gap is provided between the first coil and the second coil, at least part of the first heat sink is arranged in the gap, the first heat sink is in thermal contact with the first coil, the second coil and the magnetic core.
    Type: Application
    Filed: November 3, 2023
    Publication date: February 29, 2024
    Inventors: Shiwei LIU, Lei CHANG, Haijun YANG, Zengyi LU, Jinfa ZHANG
  • Patent number: 11848128
    Abstract: The present disclosure provides a magnetic component and a power module, relating to the technical field of power electronics; the magnetic component provided by the present disclosure includes: a first heat sink, a magnetic core extending in a transverse direction and a winding structure wound on the magnetic core, the winding structure includes at least a first coil and a second coil arranged adjacently along the transverse direction, a gap is provided between the first coil and the second coil, at least part of the first heat sink is arranged in the gap, the first heat sink is in thermal contact with the first coil, the second coil and the magnetic core.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: December 19, 2023
    Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
    Inventors: Shiwei Liu, Lei Chang, Haijun Yang, Zengyi Lu, Jinfa Zhang
  • Patent number: 11735348
    Abstract: The present application discloses a magnetic component, comprising a magnetic core comprising at least one core column; a winding winded on the core column and comprising a first coil and a second coil adjacent to the first coil; a cladding member covered on at least a portion of an external surface of the first coil; and a positioning member extending from the cladding member and the first coil, wherein the second coil is pressed on the positioning member.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: August 22, 2023
    Assignee: Delta Electronics (Shanghai) Co., Ltd.
    Inventors: Jun Sun, Zengyi Lu, Jinfa Zhang, Xicun Fan
  • Publication number: 20230260692
    Abstract: A magnetic element is provided and includes a magnetic core, M first and N second coil windings and an opening. The magnetic core includes a first and a second cover plates, a first and a second winding columns, a first and a second side columns. The M first and the N second coil windings are wound at intervals on the first winding column. The opening is disposed on the first or the second side columns, the opening penetrates through from a side of the first or second side columns away from the central connection line to a side of the first or the second side columns close to the central connection line. At least one coil winding of the M first and N second coil windings is wound on the first and second winding columns simultaneously.
    Type: Application
    Filed: February 15, 2023
    Publication date: August 17, 2023
    Inventors: Warda Gul, Haijun Yang, Zengyi Lu, Jinfa Zhang
  • Publication number: 20230260689
    Abstract: A transformer and a DC-DC converter for on-board charger using the same are provided. The transformer includes a magnetic core, a winding region, a primary coil and a secondary coil. The magnetic core includes two cover plates and a winding column disposed between the two cover plates. The winding region is disposed on the winding column and includes a plurality of winding units. The primary coil is wound in a part of the winding units to form a primary winding of the transformer. The secondary coil is wound in the other part of the winding units to form a secondary winding of the transformer. The primary and secondary coils are at least partially wound alternately in part of the plurality of winding units, and a number of winding layers along an axial direction of the winding column in each winding unit is less than or equal to two.
    Type: Application
    Filed: February 6, 2023
    Publication date: August 17, 2023
    Inventors: Haijun Yang, Warda Gul, Zengyi Lu, Jinfa Zhang
  • Patent number: 11728087
    Abstract: A magnetic dev ice includes a core structure, at least one inductor winding and at least two transformer windings. The core structure includes at least one inductor column and at least two transformer columns. The at least one inductor winding respectively winds around the at least one inductor column. The at least two transformer windings, wind around the at least two transformer columns respectively, and the transformer winding includes primary winding and secondary winding. Wherein the magnetic flax directions on adjacent transformer columns are opposite to each other when providing a current in the corresponding primary windings simultaneously.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: August 15, 2023
    Assignee: Delta Electronics (Shanghai) CO., LTD
    Inventors: Haijun Yang, Zengyi Lu, Tianding Hong, Jinfa Zhang
  • Patent number: 11664146
    Abstract: A three-phase transformer includes a magnetic core and winding, wherein the magnetic core includes first and second cover plates and magnetic pillar units. The first and second cover plates are arranged opposite to each other, the magnetic pillar units are sandwiched between the first and second cover plates; a first winding is wound on a first magnetic pillar of a first magnetic pillar unit, and a fourth winding is wound on a second magnetic pillar of the first magnetic pillar unit; a second winding is wound on a first magnetic pillar of a second magnetic pillar unit, and a fifth winding is wound on a second magnetic pillar of the second magnetic pillar unit; a third winding is wound on a first magnetic pillar of a third magnetic pillar unit, and a sixth winding is wound on a second magnetic pillar of the third magnetic pillar unit.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: May 30, 2023
    Assignee: Delta Electronics (Shanghai) CO., LTD
    Inventors: Zengyi Lu, Tianding Hong
  • Patent number: 11626806
    Abstract: A bidirectional isolated resonant converter includes a first side circuit, a second side circuit, and a resonant tank circuit. The resonant tank circuit includes a first resonant capacitor, a resonant inductor, an isolated transformer and a second capacitor. The first resonant capacitor, the resonant inductor and a first side winding of the isolated transformer are connected in series. A second side winding of the isolated transformer and the second capacitor are connected in series. The resonant inductor and the isolated transformer are integrated into an integrated magnetic component, wherein a magnetic core of the integrated magnetic component includes an inductor magnetic core portion on which an inductor winding is wound, a transformer magnetic core portion on which the first side winding and the second side winding are wound, and a common magnetic core portion shared by the resonant inductor and the isolated transformer to form closed magnetic paths, respectively.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: April 11, 2023
    Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
    Inventors: Na Dong, Lei Chang, Haijun Yang, Zengyi Lu
  • Patent number: 11621123
    Abstract: A multi-coil inductor includes a plurality of stacked inductor units. Each of the inductor units comprises: a magnetic core in which a magnetic path is formed; and a plurality of coils which are wound around the magnetic core to form at least one winding pair. Wherein a part of the magnetic path between the adjacent inductor units is shared. In the present invention, the leakage inductance is controlled and the maybe magnetic saturation of magnetic core avoided by adjusting series and parallel connections among the coils.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: April 4, 2023
    Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
    Inventors: Zengyi Lu, Haijun Yang, Shiwei Liu
  • Publication number: 20230085737
    Abstract: Disclosed is a power conversion circuit, comprising a three-phase inductor and a switching conversion unit, and the three-phase inductor is integrated into a magnetic assembly, the magnetic assembly comprising: two magnetic yokes relatively parallel to each other; a first, a second and a third winding column spaced apart sequentially and located between the two magnetic yokes, and three windings wound around the first, the second and the third winding column in one-to-one correspondence for forming an phase inductor of the three-phase inductor respectively, and phase differences between power frequency currents flowing in any two of the windings are 120°; wherein when a reference current is applied to each of the windings, magnetic fluxes on the first and the third winding column have a first reference direction, and a magnetic flux on the second winding column has a second reference direction opposite to the first reference direction.
    Type: Application
    Filed: September 19, 2022
    Publication date: March 23, 2023
    Inventors: Haijun YANG, Yuxi WANG, Kaijun ZHU, Zengyi LU
  • Publication number: 20230083589
    Abstract: A magnetic element is provided and includes a first magnetic core, a second magnetic core and two windings. The first magnetic core is made of a first material and includes two winding pillars and two connecting parts. The first magnetic core has a first permeability. The second magnetic core is made of a second material and has a second permeability. The first permeability is less than the second permeability. When the current flows through the two windings, a closed magnetic path is generated in the first magnetic core, the magnetic flux generated by the closed magnetic path flows through one of the winding pillars, one of the connecting parts, the other one of the winding pillars and the other one of the connecting parts in a direction, and the magnetic fluxes generated on the second magnetic core are cancelled out by each other.
    Type: Application
    Filed: December 1, 2021
    Publication date: March 16, 2023
    Inventors: Yueh-Cheng Hsieh, Zengyi Lu, Te-Chih Peng
  • Publication number: 20220406515
    Abstract: The present disclose provides a magnetic assembly and a power module. In one aspect, the magnetic assembly includes a magnetic core having a first magnetic leg and a second magnetic leg spatially separated from the first magnetic leg to define a spatial channel therebetween, and a winding assembly comprising a first winding, a second winding, and a third winding. The first and second windings are wound around the first magnetic leg with at least a part of the first and second windings being accommodated within the spatial channel. The third winding is wound around the first and second magnetic legs. The first winding is disposed between the first magnetic leg and the second winding. The second winding is disposed between the first winding and the third winding.
    Type: Application
    Filed: January 17, 2022
    Publication date: December 22, 2022
    Applicant: Delta Electronics (Shanghai) Co., Ltd.
    Inventors: Haijun YANG, Tianding HONG, Warda GUL, Zengyi LU, Minli JIA, Jinfa ZHANG
  • Patent number: 11515084
    Abstract: The present disclosure provides a magnetic component including a winding, a first magnetic core and a circuit component, and a wireless power-transferring device including the magnetic component. The winding is formed by winding a coil, and having a first penetration portion at a middle portion of the winding. The first magnetic core is disposed at a side of the winding, and a first insulating support portion is disposed between the first magnetic core and the winding. The circuit component is located within the first penetration portion and electrically connected with the winding. Disposing the circuit component within the first penetration portion at the middle portion of the winding can effectively save space.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: November 29, 2022
    Assignee: Delta Electronics, Inc.
    Inventors: Tianding Hong, Zengyi Lu, Haijun Yang, Jinfa Zhang