Patents by Inventor Yunqi Zheng

Yunqi Zheng 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: 20230179103
    Abstract: An apparatus includes an insulated metal substrate (IMS) board having a base metal layer and a conductive layer separated by a dielectric layer. The apparatus also includes a full bridge of a dual-full bridge power converter configured to convert between higher and lower electrical voltages. The full bridge is earned by the IMS board and is electrically coupled to the conductive layer. The full bridge includes multiple electrical switches configured to selectively form and break electrical connections with a transformer of the dual-full bridge power converter. The apparatus further includes at least one output capacitor carried by the IMS board. The at least one output capacitor is coupled to the full bridge and is configured to store electrical energy. The base metal layer is configured as a grounding plane for the full bridge, and the full bridge has split ground connections to the grounding plane.
    Type: Application
    Filed: November 16, 2022
    Publication date: June 8, 2023
    Inventors: Prashanth M. Umachandran, Yunqi Zheng, Ashish Ekbote, Ajay K. Morya
  • Patent number: 8967453
    Abstract: Methods of bonding components for fabricating electronic assemblies and electronic assemblies including bonded components are provided herein. In one example, a method of bonding components for fabricating an electronic assembly comprises the steps of disposing a first layer of a first high temperature metal-containing paste adjacent to a first component. A second layer of a second high temperature metal-containing paste is disposed adjacent to a second component. A nanostructured multilayer reactive foil is disposed between the first and second layers. The nanostructured multilayer reactive foil is activated to sinter the first and second layers and bond the first and second components.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: March 3, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Khiet Le, Vicentiu Grosu, Gregory S. Smith, Yunqi Zheng, Gregory D. Rosdahl
  • Publication number: 20130250538
    Abstract: Methods of bonding components for fabricating electronic assemblies and electronic assemblies including bonded components are provided herein. In one example, a method of bonding components for fabricating an electronic assembly comprises the steps of disposing a first layer of a first high temperature metal-containing paste adjacent to a first component. A second layer of a second high temperature metal-containing paste is disposed adjacent to a second component. A nanostructured multilayer reactive foil is disposed between the first and second layers. The nanostructured multilayer reactive foil is activated to sinter the first and second layers and bond the first and second components.
    Type: Application
    Filed: March 21, 2012
    Publication date: September 26, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: KHIET LE, VICENTIU GROSU, GREGORY S. SMITH, YUNQI ZHENG, GREGORY D. ROSDAHL
  • Patent number: 8059411
    Abstract: An electronics assembly for use in a vehicle is provided. The assembly comprises a heat sink, a dam coupled to the heat sink, the dam and the heat sink combining to form a reservoir, an electronic component positioned within the reservoir, and a thermally conductive layer conformally molded to the electronic component and disposed between the electronic component and the heat sink.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: November 15, 2011
    Assignee: GM Global Technology Operations LLC
    Inventors: Yunqi Zheng, John E. Proulx
  • Publication number: 20110186265
    Abstract: An attachment arrangement for a heat sink includes, but is not limited to, an attachment surface defined on the heat sink. A thermally conductive adhesive is disposed on the attachment surface. A substrate is attached to the attachment surface via the thermally conductive adhesive. The thermally conductive adhesive defines a discontinuity that is disposed in a delamination path of the thermally conductive adhesive.
    Type: Application
    Filed: February 4, 2010
    Publication date: August 4, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: YUNQI ZHENG, VICENTIU GROSU, KHIET LE, MARK D. KORICH
  • Patent number: 7987952
    Abstract: Damping mechanisms and motor assemblies are provided. In an embodiment, by way of example only, a damping mechanism includes an end cap, a bearing retainer plate, a bearing damper ring, a bearing assembly, and first and second lateral dampers. The bearing damper ring is disposed in an annular cavity inwardly from an inner diameter surface of the end cap and has a radially inwardly-extending flange. The bearing assembly is disposed in the annular cavity radially inwardly relative to the bearing damper ring. The first lateral damper is disposed between a radially inwardly-extending wall of the end cap and the bearing damper ring. The second lateral damper is disposed between the bearing damper ring and the bearing retainer plate.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: August 2, 2011
    Assignee: GM Global Technology Operations LLC
    Inventors: Duc Q. Phan, Khiet Le, Terence G. Ward, Yunqi Zheng, Gabriel Gallegos-Lopez, Dang Dinh Dang
  • Publication number: 20110095163
    Abstract: Damping mechanisms and motor assemblies are provided. In an embodiment, by way of example only, a damping mechanism includes an end cap, a bearing retainer plate, a bearing damper ring, a bearing assembly, and first and second lateral dampers. The bearing damper ring is disposed in an annular cavity inwardly from an inner diameter surface of the end cap and has a radially inwardly-extending flange. The bearing assembly is disposed in the annular cavity radially inwardly relative to the bearing damper ring. The first lateral damper is disposed between a radially inwardly-extending wall of the end cap and the bearing damper ring. The second lateral damper is disposed between the bearing damper ring and the bearing retainer plate.
    Type: Application
    Filed: October 28, 2009
    Publication date: April 28, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: DUC Q. PHAN, KHIET LE, TERENCE G. WARD, YUNQI ZHENG, GABRIEL GALLEGOS-LOPEZ, DANG DINH DANG
  • Publication number: 20110026226
    Abstract: An electronics assembly for use in a vehicle is provided. The assembly comprises a heat sink, a dam coupled to the heat sink, the dam and the heat sink combining to form a reservoir, an electronic component positioned within the reservoir, and a thermally conductive layer conformally molded to the electronic component and disposed between the electronic component and the heat sink.
    Type: Application
    Filed: July 29, 2009
    Publication date: February 3, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: YUNQI ZHENG, JOHN E. PROULX