Patents by Inventor Zongyuan Liu

Zongyuan 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).

  • Publication number: 20240155748
    Abstract: A lighting apparatus includes a first light source, a second light source and a driver. The first light source has multiple first LED modules. The second light source has multiple second LED modules. The driver controls the first light source and the second light source to generate an output light of a required mixed color temperature. The driver selects a first subset of the multiple first LED modules and a second subset of the multiple second LED modules to generate a first output light with a first color temperature. The driver selects a third subset of the multiple first LED modules and a fourth subset of the multiple second LED modules to generate a second output light with a second color temperature. The first subset is not equal to the third subset. The second subset is not equal to the fourth subset.
    Type: Application
    Filed: January 16, 2024
    Publication date: May 9, 2024
    Inventors: Jiayuan Zhang, Changjing Zeng, Jingjing Su, Xiaoming Yang, Zongyuan Liu, Liangliang Cao
  • Patent number: 11946618
    Abstract: A lighting apparatus includes a solar plate, a battery, a driver module, a light source, a lens tube, a main housing and a plugging bar. The solar plate converts a sunlight to an electricity. The battery stores the electricity. The driver module converts the electricity stored in the battery to a driving current. The solar plate is placed on a top side of the driver module and the light source is placed on a bottom side of the driver module. The lens tube has a top opening and a bottom opening. The top opening has a larger size than the bottom opening. The top opening is closer to the light source than the bottom opening. A light of the light source is emitted via a lateral lens surface of the lens tube between the top opening and the bottom opening.
    Type: Grant
    Filed: December 2, 2022
    Date of Patent: April 2, 2024
    Assignee: LEEDARSON LIGHTING CO.,LTD
    Inventors: Zongyuan Liu, Yankun Li, Yibin Chen, Hemu Ye
  • Patent number: 11920284
    Abstract: A door assembly of a laundry treatment device and a laundry treatment device. The door assembly includes an outer frame, an inner frame and an observation window provided between the outer frame and the inner frame, a mounting assembly being provided between the outer frame and the inner frame, the observation window being rotatably sandwiched between the outer frame and the inner frame by means of the mounting assembly. With this arrangement, the observation window can be rotated relative to the inner frame and the outer frame without deviating from the space between the inner frame and the outer frame, such that in the process of rotating the entire door assembly 180° to switch the door opening direction, the mounting requirement of the observation window can be satisfied only by separately rotating the observation window 180°, rotating same and then mounting same back to the door assembly.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: March 5, 2024
    Assignees: QINGDAO HAIER DRUM WASHING MACHINE CO., LTD., Haier Smart Home Co., Ltd.
    Inventors: Zongyuan Weng, Kai Liu, Xuekai Guo
  • Patent number: 11910500
    Abstract: A lighting apparatus includes a first light source, a second light source and a driver. The first light source has multiple first LED modules. The second light source has multiple second LED modules. The driver controls the first light source and the second light source to generate an output light of a required mixed color temperature. The driver selects a first subset of the multiple first LED modules and a second subset of the multiple second LED modules to generate a first output light with a first color temperature. The driver selects a third subset of the multiple first LED modules and a fourth subset of the multiple second LED modules to generate a second output light with a second color temperature. The first subset is not equal to the third subset. The second subset is not equal to the fourth subset.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: February 20, 2024
    Assignee: LEEDARSON LIGHTING CO., LTD.
    Inventors: Jiayuan Zhang, Changjing Zeng, Jingjing Su, Xiaoming Yang, Zongyuan Liu, Liangliang Cao
  • Patent number: 11898729
    Abstract: A lighting apparatus includes a driver module, a light source, a main housing and an optical plate. The driver module converts an external power to a driving current. The light source includes multiple LED chips. The light source is coupled to to the drive module to emit a light. The main housing is used for disposing the driver module and the light source. The optical plate is detachably inserted into a sliding track of the main housing via a lateral opening of the main housing so that the optical plate is replaceable. The optical plate changes a light direction of the light emitted by the light source to a light opening. A first surface of the light opening is substantially perpendicular to a second surface of the lateral opening.
    Type: Grant
    Filed: November 27, 2022
    Date of Patent: February 13, 2024
    Assignee: LEEDARSON LIGHTING CO., LTD.
    Inventors: Yunfei Ou, Aijun Cheng, Bin Yi, Chengliang Liang, Hongxian San, Zongyuan Liu, Haiyan Chen, Yongjun Bao
  • Publication number: 20240040681
    Abstract: A lighting apparatus includes a light source plate, LED modules and a driver module. The light source plate includes a substrate layer, a wiring layer and a protection layer. The substrate layer is made of metal material. LED modules are disposed on a top side of the light source plate. The driver module is disposed on the top side of the light source plate. The LED modules and the driver module are electrically connected via the wiring layer. The driver module includes an AC-DC converter, a regulator, a controller, a current source and an oscillation wave removal circuit. The controller controls the current source to generate driving currents to the LED modules. The oscillation wave removal circuit is coupled to the AC-DC converter for suppressing a sudden abnormal peak voltage from the AC-DC converter.
    Type: Application
    Filed: July 26, 2023
    Publication date: February 1, 2024
    Inventors: Yangbin Xu, Yankun Li, Hemu Ye, Qiqiang Lin, Zongyuan Liu
  • Publication number: 20230417397
    Abstract: A lighting apparatus includes a driver module, a light source, a main housing and an optical plate. The driver module converts an external power to a driving current. The light source includes multiple LED chips. The light source is coupled to to the drive module to emit a light. The main housing is used for disposing the driver module and the light source. The optical plate is detachably inserted into a sliding track of the main housing via a lateral opening of the main housing so that the optical plate is replaceable. The optical plate changes a light direction of the light emitted by the light source to a light opening. A first surface of the light opening is substantially perpendicular to a second surface of the lateral opening.
    Type: Application
    Filed: November 27, 2022
    Publication date: December 28, 2023
    Inventors: Yunfei Ou, Aijun Cheng, Bin Yi, Chengliang Liang, Hongxian San, Zongyuan Liu, Haiyan Chen, Yongjun Bao
  • Publication number: 20230389147
    Abstract: A lighting apparatus includes a first LED module, a second LED module, a third LED module, and a driver. The first LED module emits a blue light with a first peak wavelength between 440-470 nm. The second LED module emits a green light with a second peak wavelength between 510-550 nm, a second spectral bandwidth larger than 50 nm and a second color purity larger than 50%. The third LED module emits a red light with a third peak wavelength between 600-650 nm, a third spectral bandwidth larger than 60 nm and a third color purity larger than 80%. The driver adjusts a light ratio among the first blue light, the green light and the red light.
    Type: Application
    Filed: May 29, 2023
    Publication date: November 30, 2023
    Inventors: Changjing Zeng, Zongyuan Liu, Qiqiang Lin, Hao Chen, Yankun Li, Hemu Ye, Liangliang Cao
  • Publication number: 20230284352
    Abstract: A lighting apparatus includes a first light source, a second light source, a third light source, a driver, a first controller, a second controller and a main controller. The first light source emits a first light with a first color temperature. The second light source emits a second light with a second color temperature. The third light source emits a third light with a third color temperature. The driver generates a first driving current to the first light source, generates a second driving current to the second light source, and generates a third driving current to the third light source.
    Type: Application
    Filed: February 24, 2023
    Publication date: September 7, 2023
    Inventors: Yangbin Xu, Yankun Li, Hemu Ye, Qiqiang Lin, Zongyuan Liu, Liangliang Cao, Changjing Zeng
  • Publication number: 20230239979
    Abstract: A lighting apparatus includes a light source, a main controller, a AC-DC converter, a dimmer signal extractor, a dimmer interface circuit and an isolating transformer. The AC-DC converter converts an external AC power to a driving current of a DC power for supplying power to the light source according to a control signal received by the main controller. The dimmer signal extractor generates the control signal supplied to the main controller according to a transformed signal. The dimmer interface circuit is connected to a dimmer. The dimmer is disposed on a wall to be operated by a user to generate a dimmer voltage. The dimmer voltage is converted to a dimmer signal. The isolating transformer has a secondary terminal connecting to the dimmer interface circuit and a first terminal connecting to the dimmer signal extractor.
    Type: Application
    Filed: January 25, 2023
    Publication date: July 27, 2023
    Inventors: Zulun Hong, Qiqiang Lin, Yongqiang Wu, Zongyuan Liu, Yankun Li, Hemu Ye
  • Patent number: 11706862
    Abstract: A lighting apparatus includes a main module and an extended module. The main module includes a power circuit, a light source, a first network interface and a controller. The power circuit is controlled by the controller to generate a driving current supplied to the light source by converting an external power source. The extended module includes a function circuit and a second network interface. The function circuit communicates with the controller via the second network interface and the first network interface to add an extended function for the controller to enhance controlling of the light source. When the extended module is detachable from the main module, the main module is operated independently without the extended function.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: July 18, 2023
    Assignee: LEEDARSON LIGHTING CO., LTD.
    Inventors: Zongyuan Liu, Yankun Li, Yibin Chen, Hemu Ye
  • Patent number: 11659640
    Abstract: A lighting apparatus includes a light source, a silicon controlled rectifier, a rectifier and a current source circuit. The light source has multiple LED modules with different light parameters. The silicon controlled rectifier filters a filtering ratio of an input AC power to a filtered AC power. The filtering ratio is associated with a control angle by supplying a control voltage to the silicon controlled rectifier. The maintainer circuit maintains a working current to the silicon controlled rectifier even when the control angle is large causing the volume of the filtered AC power less than a threshold. The current source circuit receives the DC power. The current source circuit has a wall switch input for connecting to a wall switch. An on-off input pattern of the wall switch is detected by the current source circuit for generating multiple corresponding driving currents.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: May 23, 2023
    Assignee: LEEDARSON LIGHTING CO., LTD.
    Inventors: Yisheng Zheng, Qiqiang Lin, Hemu Ye, Yibin Chen, Zongyuan Liu, Yankun Li
  • Publication number: 20230098381
    Abstract: A lighting apparatus includes a solar plate, a battery, a driver module, a light source, a lens tube, a main housing and a plugging bar. The solar plate converts a sunlight to an electricity. The battery stores the electricity. The driver module converts the electricity stored in the battery to a driving current. The solar plate is placed on a top side of the driver module and the light source is placed on a bottom side of the driver module. The lens tube has a top opening and a bottom opening. The top opening has a larger size than the bottom opening. The top opening is closer to the light source than the bottom opening. A light of the light source is emitted via a lateral lens surface of the lens tube between the top opening and the bottom opening.
    Type: Application
    Filed: December 2, 2022
    Publication date: March 30, 2023
    Inventors: Zongyuan Liu, Yankun Li, Yibin Chen, Hemu Ye
  • Publication number: 20230010921
    Abstract: A lighting apparatus includes a bridge circuit, a current source, a first LED module, a second LED module and a switch. The bridge circuit is used for rectifying an input AC power to generate a DC power. The current source receives the DC power to generate a driving current. The first LED module emits a first light of a first color temperature. The second LED module emits a second light of a second color temperature. The switch is coupled to the current source to change at least a resistance parameter corresponding to a current ratio between the first LED module and the second LED module to generate a mixed light of a mixed color temperature.
    Type: Application
    Filed: July 11, 2022
    Publication date: January 12, 2023
    Inventors: Yongqiang Wu, Yangbin Xu, Guiyuan Lin, Hemu Ye, Qiqiang Lin, Yankun Li, Zongyuan Liu
  • Publication number: 20230008995
    Abstract: A lighting apparatus includes a first light source, a second light source and a driver. The first light source has multiple first LED modules. The second light source has multiple second LED modules. The driver controls the first light source and the second light source to generate an output light of a required mixed color temperature. The driver selects a first subset of the multiple first LED modules and a second subset of the multiple second LED modules to generate a first output light with a first color temperature. The driver selects a third subset of the multiple first LED modules and a fourth subset of the multiple second LED modules to generate a second output light with a second color temperature. The first subset is not equal to the third subset. The second subset is not equal to the fourth subset.
    Type: Application
    Filed: July 11, 2022
    Publication date: January 12, 2023
    Inventors: Jiayuan Zhang, Changjing Zeng, Jingjing Su, Xiaoming Yang, Zongyuan Liu, Liangliang Cao
  • Patent number: 11543094
    Abstract: A lighting apparatus includes a solar plate, a battery, a driver module, a light source, a lens tube, a main housing and a plugging bar. The solar plate converts a sunlight to an electricity. The battery stores the electricity. The driver module converts the electricity stored in the battery to a driving current. The solar plate is placed on a top side of the driver module and the light source is placed on a bottom side of the driver module. The lens tube has a top opening and a bottom opening. The top opening has a larger size than the bottom opening. The top opening is closer to the light source than the bottom opening. A light of the light source is emitted via a lateral lens surface of the lens tube between the top opening and the bottom opening.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: January 3, 2023
    Assignee: LEEDARSON LIGHTING CO., LTD
    Inventors: Zongyuan Liu, Yankun Li, Yibin Chen, Hemu Ye
  • Publication number: 20220418066
    Abstract: A lighting apparatus includes a filter tuner, a bridge rectifier, multiple types of LED modules, a monitor circuit, and a current source. The filter tuner is connected to a manual switch and an external AC power. The filter tuner changes a conductive angle of the external AC power to an adjusted AC input. The bridge rectifier receives the adjusted AC input to generate a DC output. Multiple types of LED modules are disposed for emitting lights of multiple color temperatures. The monitor circuit monitors the conductive angle to generate a control signal. The current source, according to the control signal, generates multiple corresponding driving currents respectively supplied to the multiple types of LED modules to mix a desired color temperature. The desired color temperature is associated with the conductive angle according to a predetermined relation.
    Type: Application
    Filed: June 23, 2022
    Publication date: December 29, 2022
    Inventors: Qiqiang Lin, Yongqiang Wu, Hemu Ye, Zongyuan Liu, Yankun Li, Yibin Chen
  • Publication number: 20220240359
    Abstract: A lighting apparatus includes a light source, a silicon controlled rectifier, a rectifier and a current source circuit. The light source has multiple LED modules with different light parameters. The silicon controlled rectifier filters a filtering ratio of an input AC power to a filtered AC power. The filtering ratio is associated with a control angle by supplying a control voltage to the silicon controlled rectifier. The maintainer circuit maintains a working current to the silicon controlled rectifier even when the control angle is large causing the volume of the filtered AC power less than a threshold. The current source circuit receives the DC power. The current source circuit has a wall switch input for connecting to a wall switch. An on-off input pattern of the wall switch is detected by the current source circuit for generating multiple corresponding driving currents.
    Type: Application
    Filed: January 26, 2022
    Publication date: July 28, 2022
    Inventors: Yisheng Zheng, Qiqiang Lin, Hemu Ye, Yibin Chen, Zongyuan Liu, Yankun Li
  • Publication number: 20220235927
    Abstract: A lighting apparatus includes a first light source, a second light source, a first light guide plate, a second light guide plate and a driver. The first light source emits a first light. The second light source emits a second light. The first light guide plate receives the first light from a first lateral wall and guides the first light to escape via a first surface of the first light guide plate. The second light guide plate receives the second light and guides the second light to escape via a second surface of the second light guide plate. The second surface has an image pattern. The image pattern is rendered by placing multiple first light escaping dots on the second surface. The multiple first light escaping dots are divided into multiple sets for rendering multiple visual objects by arranging area intensities of the first light escaping dots.
    Type: Application
    Filed: May 13, 2021
    Publication date: July 28, 2022
    Inventors: Bin Yi, Xiaoming Yang, Zhongyuan Liang, Zongyuan Liu, Jiayuan Zhang, Ruixiang Lin, Yongzhe Dong, Lei Zhang, Hongwei Ge, Zhirong Xie, JunJie Lin, Chuanbao Ye
  • Publication number: 20220196218
    Abstract: A lighting apparatus includes a solar plate, a battery, a driver module, a light source, a lens tube, a main housing and a plugging bar. The solar plate converts a sunlight to an electricity. The battery stores the electricity. The driver module converts the electricity stored in the battery to a driving current. The solar plate is placed on a top side of the driver module and the light source is placed on a bottom side of the driver module. The lens tube has a top opening and a bottom opening. The top opening has a larger size than the bottom opening. The top opening is closer to the light source than the bottom opening. A light of the light source is emitted via a lateral lens surface of the lens tube between the top opening and the bottom opening.
    Type: Application
    Filed: December 21, 2021
    Publication date: June 23, 2022
    Inventors: Zongyuan Liu, Yankun Li, Yibin Chen, Hemu Ye