Patents by Inventor Changzhi Wang

Changzhi Wang 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: 12359862
    Abstract: A refrigeration module, comprising: a module body, in which an installation space is defined; and a refrigeration system disposed in the installation space for use in generating cold, wherein a cold supply port is provided on the module body, the cold supply port is configured to be detachably connected to an external pipeline, and the cold generated by the refrigeration system is supplied to the external pipeline by the cold supply port. Further provided by the present invention is a refrigerator that has the refrigeration module. By means of separating the refrigeration module and a storage portion, the storage portion does not need to give way to the refrigeration system, and the internal volume of the refrigerator may be greatly increased; and the refrigeration module may be freely matched with one or more of the same or different storage portions as needed.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: July 15, 2025
    Assignees: QINGDAO HAIER REFRIGERATOR CO., LTD., HAIER SMART HOME CO., LTD.
    Inventors: Bin Fei, Zhanzhan Liu, Xiaobing Zhu, Peng Li, Changzhi Wang
  • Publication number: 20250003670
    Abstract: A hinge includes a fixed seat mounted on the cabinet, a movable seat mounted on the door, and a linkage assembly hinged between the fixed and movable seats. One of the movable or fixed seat is provided with a guide groove that cooperates with the linkage assembly, at least one portion of the guide groove is a curved groove. This configuration allows for the control of the door's movement trajectory according to specific needs.
    Type: Application
    Filed: July 14, 2022
    Publication date: January 2, 2025
    Inventors: Changzhi WANG, Enpin XIA, Qiufang LI, Kang LI, Yufeng DONG
  • Publication number: 20250003673
    Abstract: A refrigerator with a reserved installation space arranged in a bottom heat dissipation compartment includes a cabinet with a heat dissipation compartment set at its rear bottom; a compressor, a duct assembly, and an evaporating tray sequentially arranged within the heat dissipation compartment along a horizontal direction of the cabinet, and the heat dissipation compartment reserves an installation space on one side away from the duct assembly relative to the evaporating tray, the installation space is equipped with one or more mating structures, each of which is used to install an auxiliary functional component. This design optimizes the layout of devices within the confined space of the heat dissipation compartment to fulfill the purpose of reserving installation space. This provides installation space for expanding the functionality of different refrigerator models, enhancing product competitiveness and saving development costs.
    Type: Application
    Filed: July 28, 2022
    Publication date: January 2, 2025
    Inventors: Lingyun DONG, Bin FEI, Changzhi WANG, Jianquan CHEN
  • Patent number: 12181205
    Abstract: Provided are an installation foot and a refrigerator having same, the installation foot including: a support base, a part of which forms a support platform; a roller wheel, rollably disposed below the support platform; a first adjustment portion, provided with a first screw rod and a first adjustment rotary disc, the first screw rod being rotatably disposed on the support platform, and the first adjustment rotary disc being fixedly connected to the first screw rod or integrated with the first screw rod to drive the first screw rod to rotate; and a second adjustment portion, provided with a second screw rod and a second adjustment rotary disc, the second screw rod being rotatably disposed on the support platform, and the second adjustment rotary disc being fixedly connected to the second screw rod or integrated with the second screw rod to drive the second screw rod to rotate.
    Type: Grant
    Filed: May 8, 2021
    Date of Patent: December 31, 2024
    Assignees: QINGDAO HAIER REFRIGERATOR CO., LTD., HAIER SMART HOME CO., LTD.
    Inventors: Xiaofeng Li, Changzhi Wang, Bin Fei, Enpin Xia, Xiaobing Zhu, Kang Li
  • Publication number: 20240410638
    Abstract: A refrigerator having an inclined drain pipe disposed at a lower portion of the refrigerator comprises: a cabinet; a storage chamber, a refrigeration cavity, a heat dissipation machine compartment, and a front wall of the heat dissipation machine compartment extends obliquely upwards from front to back from the middle of a cabinet bottom plate; an evaporation dish; a drain pipe extends obliquely downwards from front to back from the bottom of the refrigeration cavity, passes through the front wall of the heat dissipation machine compartment and then further extends to the evaporation dish; a water pipe securing member is arranged at the position where the drain pipe passes through the front wall; the water pipe securing member has a first securing face, and the first securing face is abutting the front wall of the heat dissipation machine compartment.
    Type: Application
    Filed: July 28, 2022
    Publication date: December 12, 2024
    Inventors: Lingyun DONG, Bin FEI, Changzhi WANG, Jianquan CHEN
  • Publication number: 20240401849
    Abstract: A refrigerator with a bottom-arranged heat dissipation compartment, comprising: a refrigerator body, a fixing support, a heat dissipation fan, and a condenser.
    Type: Application
    Filed: July 28, 2022
    Publication date: December 5, 2024
    Applicants: QINGDAO HAIER REFRIGERATOR CO., LTD., HAIER SMART HOME CO., LTD.
    Inventors: Lingyun DONG, Bin FEI, Changzhi WANG, Jianquan CHEN
  • Patent number: 12146700
    Abstract: The present invention discloses a control system and a control method of a refrigerator. The control system comprises a collection unit and a fan control unit, and the fan control unit controls a heat dissipation fan to operate at different rotation speeds according to a power-on signal of the refrigerator, a closing signal and an opening signal of the first air port collected by the collection unit. The present invention solves the problem that the hot air discharged out of the compressor compartment blends with cold air and re-enters the compressor compartment, and the problem of poor heat dissipation of the refrigerator when the refrigerator is embedded in the cupboard.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: November 19, 2024
    Assignees: QINGDAO HAIER REFRIGERATOR CO., LTD., HAIER SMART HOME CO., LTD.
    Inventors: Jian Ma, Xiaobing Zhu, Weijie Li, Mengcheng Li, Bin Fei, Peng Liu, Changzhi Wang
  • Publication number: 20240328704
    Abstract: A refrigerator includes a top cover for the cooling chamber, an evaporator, a storage chamber and a cooling chamber located below the storage chamber, where at least a part of the top wall of the cooling chamber is formed on this top cover, and the evaporator is located inside the cooling chamber and fixedly connected to the top cover of the cooling chamber in a hanging manner. According to the refrigerator, by fixedly connecting the evaporator to the top cover of the cooling chamber in a hanging manner, the top cover is subjected to a downward force due to the gravity of the evaporator. This refrigerator avoids the bulging of the top cover upwards.
    Type: Application
    Filed: June 24, 2022
    Publication date: October 3, 2024
    Inventors: Shanshan LIU, Jianquan CHEN, Hui LIU, Changzhi WANG
  • Patent number: 12092389
    Abstract: An installation device for a built-in refrigerator, comprising: a fixing frame, provided on a bottom plate of a refrigerator in a front-back extension direction of the refrigerator; and at least one guide block, disposed on the fixing frame, the bottom of the guide block being provided with a groove parallel to the front-back extension direction of the refrigerator, and the groove being configured to match a guide rail portion pre-installed on the ground where an installation space is located, to limit the refrigerator to move in the front-back direction, so that the refrigerator can move backward along a preset path to reach an installation position.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: September 17, 2024
    Assignees: QINGDAO HAIER REFRIGERATOR CO., LTD., HAIER SMART HOME CO., LTD.
    Inventors: Bin Fei, Changzhi Wang, Xiaobing Zhu, Enpin Xia, Peng Li
  • Patent number: 12078412
    Abstract: The present invention discloses a refrigerator, comprising a compressor compartment disposed in its lower rear portion thereof, wherein the back plate of the compressor compartment has a first air port and a second air port, and the bottom plate is provided with a third air port. The refrigerator further comprises a baffle movably disposed at the first air port to open or close the first air port. The baffle may prevent the hot air discharged from the compressor compartment from blending with cold air and re-entering the compressor compartment after the refrigerator is embedded in the cupboard.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: September 3, 2024
    Assignees: QINGDAO HAIER REFRIGERATOR CO., LTD., HAIER SMART HOME CO., LTD.
    Inventors: Jian Ma, Xiaobing Zhu, Weijie Li, Mengcheng Li, Bin Fei, Peng Liu, Changzhi Wang
  • Patent number: 12022946
    Abstract: Provided are a foot adjusting system and a refrigerator having same, the foot adjusting system including: a driving rotating wheel, a part of which forms a driving rotating shaft; a drive belt, sleeved on an outer periphery of the driving rotating shaft; and a foot, provided with a screw rod and a driven rotary disc, the screw rod being rotatably screwed into a threaded hole at a bottom of an apparatus where the foot adjusting system is installed, an outer periphery of the driven rotary disc being sleeved with the drive belt to be in a transmission connection with the driving rotating shaft, and the driven rotary disc being fixedly connected to the screw rod or integrated with the screw rod to form a one-piece part so as to drive the screw rod to rotate. The leveling difficulty and the installation difficulty of the apparatus can be reduced.
    Type: Grant
    Filed: May 8, 2021
    Date of Patent: July 2, 2024
    Assignees: QINGDAO HAIER REFRIGERATOR CO., LTD., HAIER SMART HOME CO., LTD.
    Inventors: Changzhi Wang, Bin Fei, Enpin Xia, Xiaobing Zhu, Kang Li
  • Patent number: 11938425
    Abstract: The present disclosure discloses a multi-bubbling region column tray and a corresponding plate column. The multi-bubbling region column tray includes: at least two bubbling regions, provided with first openings for liquid and gas to be mixed and in contact with each other; and at least one non-side downcomer, including at least one hanging downcomer, where the hanging downcomer has a bottom part which includes one or more second openings allowing the liquid to flow toward a lower left side, and one or more third openings allowing the liquid to flow toward a lower right side; and the bottom part of the hanging downcomer is designed to separate the liquid flowing out from the one or more second openings and the liquid flowing out from the one or more third openings.
    Type: Grant
    Filed: November 29, 2022
    Date of Patent: March 26, 2024
    Assignee: Beijing Zehua Chemical Engineering Co., Ltd.
    Inventors: Runxing Xie, Hongping Tang, Changzhi Wang
  • Publication number: 20240085086
    Abstract: The present invention discloses a control system and a control method of a refrigerator. The control system comprises a collection unit and a fan control unit, and the fan control unit controls a heat dissipation fan to operate at different rotation speeds according to a power-on signal of the refrigerator, a closing signal and an opening signal of the first air port collected by the collection unit. The present invention solves the problem that the hot air discharged out of the compressor compartment blends with cold air and re-enters the compressor compartment, and the problem of poor heat dissipation of the refrigerator when the refrigerator is embedded in the cupboard.
    Type: Application
    Filed: February 5, 2021
    Publication date: March 14, 2024
    Inventors: JIAN MA, XIAOBING ZHU, WEIJIE LI, MENGCHENG LI, BIN FEI, PENG LIU, CHANGZHI WANG
  • Publication number: 20230280088
    Abstract: An air-cooled refrigerator comprises a bottom liner, a fan bottom shell, an air duct cover plate, and fan blades. A cooling chamber and a storage space are defined in the bottom liner. The fan bottom shell is arranged at a rear portion of the cooling chamber. The air duct cover plate comprises a back plate portion and a fan upper cover. The back plate portion is disposed in front of a rear wall of the bottom liner. The fan upper cover obliquely extends downward from a lower end of the back plate portion into the cooling chamber, covers the fan bottom shell and is fastened thereto. The back plate portion and the fan upper cover are integrally formed. The fan blades are arranged in a fan cavity, and enable formation of a refrigeration airflow discharged from the cooling chamber to an air supply duct.
    Type: Application
    Filed: August 17, 2021
    Publication date: September 7, 2023
    Inventors: Jian MA, Changzhi WANG, Bin FEI, Noda TOSHINORI, Lingyun DONG, Jianquan CHEN, Hui LIU
  • Publication number: 20230263304
    Abstract: Provided are a foot adjusting system and a refrigerator having same, the foot adjusting system including: a driving rotating wheel, a part of which forms a driving rotating shaft; a drive belt, sleeved on an outer periphery of the driving rotating shaft; and a foot, provided with a screw rod and a driven rotary disc, the screw rod being rotatably screwed into a threaded hole at a bottom of an apparatus where the foot adjusting system is installed, an outer periphery of the driven rotary disc being sleeved with the drive belt to be in a transmission connection with the driving rotating shaft, and the driven rotary disc being fixedly connected to the screw rod or integrated with the screw rod to form a one-piece part so as to drive the screw rod to rotate. The leveling difficulty and the installation difficulty of the apparatus can be reduced.
    Type: Application
    Filed: May 8, 2021
    Publication date: August 24, 2023
    Inventors: Changzhi WANG, Bin FEI, Enpin XIA, Xiaobing ZHU, Kang LI
  • Publication number: 20230251017
    Abstract: Provided are an installation foot and a refrigerator having same, the installation foot including: a support base, a part of which forms a support platform; a roller wheel, rollably disposed below the support platform; a first adjustment portion, provided with a first screw rod and a first adjustment rotary disc, the first screw rod being rotatably disposed on the support platform, and the first adjustment rotary disc being fixedly connected to the first screw rod or integrated with the first screw rod to drive the first screw rod to rotate; and a second adjustment portion, provided with a second screw rod and a second adjustment rotary disc, the second screw rod being rotatably disposed on the support platform, and the second adjustment rotary disc being fixedly connected to the second screw rod or integrated with the second screw rod to drive the second screw rod to rotate.
    Type: Application
    Filed: May 8, 2021
    Publication date: August 10, 2023
    Inventors: Xiaofeng LI, Changzhi WANG, Bin FEI, Enpin XIA, Xiaobing ZHU, Kang LI
  • Publication number: 20230251016
    Abstract: An installation foot and a refrigerator having same, the installation foot including: a support base, a part of which forms a first step portion and a second step portion; a roller wheel, rollably disposed below the second step portion; and an adjustment portion, provided with a screw rod and an adjustment rotary disc, the screw rod being rotatably disposed on the first step portion, and the adjustment rotary disc being fixedly connected to the screw rod or integrated with the screw rod to form a one-piece part so as to drive the screw rod to rotate. In an installation process, the roller wheel is able to roll along a supporting surface on which the installation foot is located, and the screw rod can rotate relative to the support base, so that the installation foot is suitable for both a leveling process and a moving process of an apparatus.
    Type: Application
    Filed: May 8, 2021
    Publication date: August 10, 2023
    Inventors: Changzhi WANG, Bin FEI, Enpin XIA, Xiaobing ZHU, Kang LI
  • Publication number: 20230243568
    Abstract: An air-cooled refrigerator supplying air through a centrifugal fan, comprising a bottom liner, an air duct back plate, and the centrifugal fan. A cooling chamber and a storage space are defined in the bottom liner; the air duct back plate is provided in the-front of a back wall of the bottom liner, and defines an air supply duct with the back wall of the bottom liner; the centrifugal fan comprises a volute and an impeller; the volute is arranged obliquely upwards from front to back at the back of the cooling chamber, and a fan cavity and a gradually widened exhaust cavity are defined in the volute; the fan cavity is formed into a continuous spiral; the gradually widened exhaust cavity is gradually widen backwards from the fan cavity; the impeller is provided in the fan cavity; and the inner wall face of the fan cavity is continuous and smooth.
    Type: Application
    Filed: June 15, 2021
    Publication date: August 3, 2023
    Applicants: QINGDAO HAIER REFRIGERATOR CO., LTD., HAIER SMART HOME CO., LTD.
    Inventors: Jianquan CHEN, Xiaobing ZHU, Bin FEI, Changzhi WANG, Chen FENG
  • Publication number: 20230152033
    Abstract: The present invention discloses a refrigerator, comprising a compressor compartment disposed in its lower rear portion thereof, wherein the back plate of the compressor compartment has a first air port and a second air port, and the bottom plate is provided with a third air port. The refrigerator further comprises a baffle movably disposed at the first air port to open or close the first air port. The baffle may prevent the hot air discharged from the compressor compartment from blending with cold air and re-entering the compressor compartment after the refrigerator is embedded in the cupboard.
    Type: Application
    Filed: February 5, 2021
    Publication date: May 18, 2023
    Inventors: JIAN MA, XIAOBING ZHU, WEIJIE LI, MENGCHENG LI, BIN FEI, PENG LIU, CHANGZHI WANG
  • Publication number: 20230092008
    Abstract: The present disclosure discloses a multi-bubbling region column tray and a corresponding plate column. The multi-bubbling region column tray includes: at least two bubbling regions, provided with first openings for liquid and gas to be mixed and in contact with each other; and at least one non-side downcomer, including at least one hanging downcomer, where the hanging downcomer has a bottom part which includes one or more second openings allowing the liquid to flow toward a lower left side, and one or more third openings allowing the liquid to flow toward a lower right side; and the bottom part of the hanging downcomer is designed to separate the liquid flowing out from the one or more second openings and the liquid flowing out from the one or more third openings.
    Type: Application
    Filed: November 29, 2022
    Publication date: March 23, 2023
    Applicant: Beijing Zehua Chemical Engineering Co., Ltd.
    Inventors: Runxing Xie, Hongping Tang, Changzhi Wang