Patents by Inventor Qihong Ling

Qihong Ling 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: 10805991
    Abstract: A microwave oven has a cooking cavity and an electrical chamber, with a magnetron, a frequency converter assembly and a cooling fan arranged in the electrical chamber. The frequency converter assembly has a mounting support mounted on a bottom plate of the microwave oven, a mounting base obliquely mounted on the mounting support, a frequency converter circuit board mounted on the mounting base and obliquely arranged relative to the bottom plate of the microwave oven, and an air guide cover covering over the frequency converter circuit board for guiding cool air blown by the cooling fan to the frequency converter circuit board. The microwave oven can not only solve the problem that the mounting space for frequency converter circuit boards is not sufficient, but also effectively control the temperature rise of the frequency converter circuit boards.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: October 13, 2020
    Inventors: Wei Li, Mingbo An, Qihong Ling
  • Patent number: 10736186
    Abstract: The present disclosure provides a cooking appliance, comprising a base and an oven door articulated with the base, wherein the cooking appliance further comprises a cooking platform and a microwave shield, the cooking platform comprises a frame and a carrier plate mounted on the frame, the carrier plate is made of a non-microwave shielding material, the frame is detachably mounted on a top plate of the base, an abutting supporting surface is formed between the lower surface of the frame and the upper surface of the top plate, a magnetron is mounted at the bottom of the top plate, the magnetron is used for emitting microwaves from the inner side of the supporting surface to the carrier plate, and the microwave shield is mounted on the top plate, surrounds the outer side of the supporting surface and is used for shielding the microwaves leaked from the supporting surface.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: August 4, 2020
    Assignees: GUANGDONG MIDEA KITCHEN APPLIANCES MANUFACTURING CO., LTD., MIDEA GROUP CO., LTD.
    Inventors: Mingbo An, Qihong Ling
  • Publication number: 20180343712
    Abstract: The present disclosure provides a cooking appliance, comprising a base and an oven door articulated with the base, wherein the cooking appliance further comprises a cooking platform and a microwave shield, the cooking platform comprises a frame and a carrier plate mounted on the frame, the carrier plate is made of a non-microwave shielding material, the frame is detachably mounted on a top plate of the base, an abutting supporting surface is formed between the lower surface of the frame and the upper surface of the top plate, a magnetron is mounted at the bottom of the top plate, the magnetron is used for emitting microwaves from the inner side of the supporting surface to the carrier plate, and the microwave shield is mounted on the top plate, surrounds the outer side of the supporting surface and is used for shielding the microwaves leaked from the supporting surface.
    Type: Application
    Filed: December 18, 2017
    Publication date: November 29, 2018
    Inventors: Mingbo AN, Qihong LING
  • Publication number: 20180288834
    Abstract: A microwave oven comprising a cooking cavity and an electrical chamber, and a magnetron, a frequency converter assembly and a cooling fan are arranged in the electrical chamber; the frequency converter assembly comprises a mounting support mounted on a bottom plate of the microwave oven, a mounting base obliquely mounted on the mounting support, a frequency converter circuit board mounted on the mounting base and obliquely arranged relative to the bottom plate of the microwave oven and an air guide cover covering over the frequency converter circuit board for guiding cool air blown by the cooling fan to the frequency converter circuit board. The microwave oven can not only solve the problem that the mounting space for frequency converter circuit boards is not sufficient, but also effectively control the temperature rise of the frequency converter circuit boards.
    Type: Application
    Filed: June 4, 2018
    Publication date: October 4, 2018
    Inventors: Wei Li, Mingbo An, Qihong Ling
  • Patent number: 9918358
    Abstract: A microwave oven includes a shell defining a cooling air inlet and a cooling air outlet therein; a compartment defining a cavity, nested in the shell and defining an open front end, a receiving space being defined between a rear plate of the compartment and a rear plate of the shell; a first electric member and a second electric member disposed in the receiving space respectively; and a fan disposed in the receiving space, defining a first air inlet, a second air inlet, a first air outlet communicated with the first air inlet to define a first air blowing channel, and a second air outlet communicated with the second air inlet to define a second air blowing channel, the fan being configured to cool the first electric member via the first air blowing channel and to cool the second electric member via the second air blowing channel.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: March 13, 2018
    Assignees: GUANGDONG MIDEA KITCHEN APPLIANCES MANUFACTURING CO., LTD., MIDEA GROUP CO., LTD.
    Inventors: Jaeman Cho, Qihong Ling, Yongnan Mao, Mingbo An
  • Publication number: 20160192445
    Abstract: A microwave oven includes a shell defining a cooling air inlet and a cooling air outlet therein; a compartment defining a cavity, nested in the shell and defining an open front end, a receiving space being defined between a rear plate of the compartment and a rear plate of the shell; a first electric member and a second electric member disposed in the receiving space respectively; and a fan disposed in the receiving space, defining a first air inlet, a second air inlet, a first air outlet communicated with the first air inlet to define a first air blowing channel, and a second air outlet communicated with the second air inlet to define a second air blowing channel, the fan being configured to cool the first electric member via the first air blowing channel and to cool the second electric member via the second air blowing channel.
    Type: Application
    Filed: September 25, 2015
    Publication date: June 30, 2016
    Inventors: Jaeman Cho, Qihong Ling, Yongnan Mao, Mingbo An