Patents by Inventor QINCHAO LIU

QINCHAO LIU 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: 11519207
    Abstract: A refrigeration device has a first door with an opening and a second door for closing the opening in the first door. A first hinge member has a first connection portion fixed on a main body of the refrigeration device and a first hinged portion connected to the first door. A second hinge member has a second connection portion fixed on the first door and a second hinged portion connected to the second door. The second hinge member includes a columnar portion that is hinged to the first hinged portion. One of the columnar portion and the first hinged portion has a first shaft hole, and the other one has a first hinge shaft that extends into the first shaft hole. The novel device prevents a door body of the refrigeration device from being damaged at a hinged position and the reliability of the refrigeration device is improved.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: December 6, 2022
    Assignee: BSH HAUSGERAETE GMBH
    Inventors: Qinchao Liu, Ping Lv, Alfred Raab, Chuan Zhang
  • Publication number: 20220003028
    Abstract: A refrigerator includes a cabinet, a first door located in front of the cabinet, a second door located in front of the first door, an electrical member located at the second door, and a transmission line connected to the electrical member. The transmission line extends from the cabinet into the first door and extends from the first door toward the second door.
    Type: Application
    Filed: June 30, 2021
    Publication date: January 6, 2022
    Inventors: Jinghui Chen, Qinchao Liu, Ping Lv, Nanwei Zhang
  • Patent number: 10575639
    Abstract: A household appliance includes a connection mechanism fixing a door and a main body. The connection mechanism includes first and second components fixed by first and second fixing mechanisms. The first mechanism includes a first fixing member, a first hole on the first component and a second hole on the second component. The second mechanism includes a second fixing member, third holes elongated in a second direction at intervals on the first component and fourth holes at intervals in a first direction on the second component. When the second fixing member passes through a third hole and a fourth hole, the third and fourth holes define a distance between centers of remaining third holes and centers of remaining fourth holes in the first direction. The fourth holes adjust positions relative to the third holes in the second direction, causing the first and second components to relatively rotate.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: March 3, 2020
    Assignee: BSH Hausgeraete GmbH
    Inventors: Qinchao Liu, Ping Lv, Ya Xu, Chuan Zhang, Oliver Elser, Roland Kuemmel
  • Publication number: 20200025438
    Abstract: A refrigeration device has a main body, a first door with an opening, and a second door for opening and closing the opening. A first hinge member connects the first door to the main body and a second hinge member that is fixed on the first door including a second door hinge shaft connected to the second door. A first stop portion is fixed on a lower side of the second hinge member and is matched to a first limiting portion of the first hinge member. When the first door rotates to a first preset angle, the first stop portion abuts against the first limiting portion. A stop function is integrated on a hinge of a door body of the refrigeration device, thus reducing a quantity of parts of the refrigeration device and assembly complexity, and improving assembly precision and efficiency of the refrigeration device.
    Type: Application
    Filed: July 11, 2019
    Publication date: January 23, 2020
    Inventors: QINCHAO LIU, PING LV, CHUAN ZHANG
  • Publication number: 20200024880
    Abstract: A refrigeration device has a first door with an opening and a second door for closing the opening in the first door. A first hinge member has a first connection portion fixed on a main body of the refrigeration device and a first hinged portion connected to the first door. A second hinge member has a second connection portion fixed on the first door and a second hinged portion connected to the second door. The second hinge member includes a columnar portion that is hinged to the first hinged portion. One of the columnar portion and the first hinged portion has a first shaft hole, and the other one has a first hinge shaft that extends into the first shaft hole. The novel device prevents a door body of the refrigeration device from being damaged at a hinged position and the reliability of the refrigeration device is improved.
    Type: Application
    Filed: July 11, 2019
    Publication date: January 23, 2020
    Inventors: QINCHAO LIU, PING LV, ALFRED RAAB, CHUAN ZHANG
  • Publication number: 20190269242
    Abstract: A household appliance includes a connection mechanism fixing a door and a main body. The connection mechanism includes first and second components fixed by first and second fixing mechanisms. The first mechanism includes a first fixing member, a first hole on the first component and a second hole on the second component. The second mechanism includes a second fixing member, third holes elongated in a second direction at intervals on the first component and fourth holes at intervals in a first direction on the second component. When the second fixing member passes through a third hole and a fourth hole, the third and fourth holes define a distance between centers of remaining third holes and centers of remaining fourth holes in the first direction. The fourth holes adjust positions relative to the third holes in the second direction, causing the first and second components to relatively rotate.
    Type: Application
    Filed: February 27, 2019
    Publication date: September 5, 2019
    Inventors: QINCHAO LIU, PING LV, YA XU, CHUAN ZHANG, OLIVER ELSER, ROLAND KUEMMEL