Patents by Inventor Qiwu Zhu

Qiwu 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).

  • Patent number: 11692749
    Abstract: A method for operating a refrigeration appliance includes the steps of running a compressor and opening at least one of a first branch and a second branch, where the first branch has a first evaporator, the second branch has a second evaporator, and the first branch and the second branch are connected in parallel at inlets thereof. The method further determines, according to an ambient temperature, whether the first branch is open after the compressor is turned off and determines, based on the ambient temperature, whether the second branch is open after the compressor is turned off.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: July 4, 2023
    Assignee: BSH Hausgeraete GmbH
    Inventors: Xiangyu Liu, Guike Shen, Baoyang Wang, Qiwu Zhu, Weizhong Zhu
  • Publication number: 20230175770
    Abstract: A control method for a refrigerator and a refrigerator are provided. The refrigerator includes a compartment, an evaporator, and a heating module. The method includes: acquiring a current temperature of the compartment; and adjusting an operating power of the heating module according to the current temperature, so that the heating module heats the compartment to a target temperature according to the operating power, where different temperature ranges correspond to different operating powers.
    Type: Application
    Filed: March 15, 2021
    Publication date: June 8, 2023
    Inventors: Yong Tian, Qiwu Zhu, Weizhong Zhu
  • Publication number: 20210172658
    Abstract: A method for operating a refrigeration appliance includes the steps of running a compressor and opening at least one of a first branch and a second branch, where the first branch has a first evaporator, the second branch has a second evaporator, and the first branch and the second branch are connected in parallel at inlets thereof. The method further determines, according to an ambient temperature, whether the first branch is open after the compressor is turned off and determines, based on the ambient temperature, whether the second branch is open after the compressor is turned off.
    Type: Application
    Filed: December 7, 2020
    Publication date: June 10, 2021
    Inventors: Xiangyu Liu, Guike Shen, Baoyang Wang, Qiwu Zhu, Weizhong Zhu
  • Patent number: 8511102
    Abstract: A method for defrost control of a refrigerator having a refrigeration and defrost system that includes a compressor, an evaporator, an evaporator fan and a heater. The refrigerator also has a control system to control the operation of the refrigerator. The method includes stopping the compressor operation; starting a defrost process; starting the heater; maintaining a start state over a preset period of time; closing off the heater; and starting the compressor. After starting the compressor and before the evaporator fan is started to perform the refrigeration operation, the evaporator fan is operated at least once briefly and intermittently.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: August 20, 2013
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Junhong Feng, Xiaotian Zhou, Qiwu Zhu, Weizhong Zhu
  • Publication number: 20110289949
    Abstract: A refrigerator includes a refrigerator body defining at least one storage space, and a door connected to the refrigerator body for closing at least a part of the storage space. A dispenser is provided in the door and includes a dispenser casing which is supplied with heat by a first heater. A control unit automatically controls the on and off operation of the first heater. Arranged near the first heater is a second heater to optionally supply extra heat to the dispenser casing in a manually initiated auxiliary heating mode.
    Type: Application
    Filed: December 8, 2009
    Publication date: December 1, 2011
    Applicant: BSH BOSCH UND SIEMENS HAUSGERÄTE GMBH
    Inventors: Yufa Bai, Liang Gao, Songtao Lu, Qiwu Zhu
  • Publication number: 20110283724
    Abstract: A refrigerator includes a freezing compartment and a door for selectively opening or closing at least a part of the freezing compartment The door includes a foam insulating layer and a sidewall contacting the foam insulating layer. A heater is installed correlative with the sidewall to supply heat to the sidewall.
    Type: Application
    Filed: December 8, 2009
    Publication date: November 24, 2011
    Applicant: BSH BOSCH UND SIEMENS HAUSGERÄTE GMBH
    Inventors: Yufa Bai, Liang Gao, Songtao Lu, Qiwu Zhu
  • Publication number: 20110283731
    Abstract: A refrigerator includes a refrigerator body defining at least one storage space and a door connected to the refrigerator body for closing at least a part of the storage space. The door includes a heat insulating layer. A dispenser is provided in the door and has a dispenser casing which is adjacent to the heat insulating layer. A heater is arranged at least adjacent to the inner side of the dispenser casing and a heat conducting element covers at least a part of the inner surface of the dispenser casing in facing relationship to the heat insulating layer. The heat conducting element is arranged at least adjacent to the heater for transmitting the heat generated by the heater to the dispenser casing.
    Type: Application
    Filed: December 8, 2009
    Publication date: November 24, 2011
    Applicant: BSH Bosch und Siemens Hausgerate GmbH
    Inventors: Yufa Bai, Liang Gao, Songtao Lu, Qiwu Zhu
  • Publication number: 20110283733
    Abstract: A refrigerator includes a dispenser provided in a door and having a dispenser casing, which is provided with a first region and a second region located close to the first region. The first region and the second region are adjacent to a heat insulating layer of the door. A first heater is arranged in the first region for supplying heat to the dispenser casing and a second heater is arranged in the second region for supplying heat to the dispenser casing, with the first heater and the second heater being controlled independently.
    Type: Application
    Filed: December 18, 2009
    Publication date: November 24, 2011
    Applicant: BSH BOSCH UND SIEMENS HAUSGERÄTE GMBH
    Inventors: Yufa Bai, Liang Gao, Songtao Lu, Qiwu Zhu
  • Publication number: 20110259896
    Abstract: A refrigeration device, in particular a refrigeration/freezer combination unit, includes a housing encompassing first and second interior spaces for accommodating items to be chilled. The first and second interior spaces are joined by an air channel for establishing an air flow from the first interior space to the second interior space. At least one intermediate wall is provided in a region of the air channel for dividing the air flow into at least two partial flows.
    Type: Application
    Filed: December 11, 2009
    Publication date: October 27, 2011
    Applicant: BSH BOSCH UND SIEMENS HAUSGERÄTE GMBH
    Inventors: Yufa Bai, Jochen Härlen, Long Xiao, Qiwu Zhu
  • Publication number: 20110036105
    Abstract: A method for defrost control of a refrigerator having a refrigeration and defrost system that includes a compressor, an evaporator, an evaporator fan and a heater. The refrigerator also has a control system to control the operation of the refrigerator. The method includes stopping the compressor operation; starting a defrost process; starting the heater; maintaining a start state over a preset period of time; closing off the heater; and starting the compressor. After starting the compressor and before the evaporator fan is started to perform the refrigeration operation, the evaporator fan is operated at least once briefly and intermittently.
    Type: Application
    Filed: April 17, 2009
    Publication date: February 17, 2011
    Applicant: BSH BOSCH UND SIEMENS HAUSGERÄTE GMBH
    Inventors: Junhong Feng, Xiaotian Zhou, Qiwu Zhu, Weizhong Zhu