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).
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Publication number: 20240155748Abstract: 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: ApplicationFiled: January 16, 2024Publication date: May 9, 2024Inventors: Jiayuan Zhang, Changjing Zeng, Jingjing Su, Xiaoming Yang, Zongyuan Liu, Liangliang Cao
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Patent number: 11946618Abstract: 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: GrantFiled: December 2, 2022Date of Patent: April 2, 2024Assignee: LEEDARSON LIGHTING CO.,LTDInventors: Zongyuan Liu, Yankun Li, Yibin Chen, Hemu Ye
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Patent number: 11920284Abstract: 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: GrantFiled: December 20, 2018Date of Patent: March 5, 2024Assignees: QINGDAO HAIER DRUM WASHING MACHINE CO., LTD., Haier Smart Home Co., Ltd.Inventors: Zongyuan Weng, Kai Liu, Xuekai Guo
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Patent number: 11910500Abstract: 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: GrantFiled: July 11, 2022Date of Patent: February 20, 2024Assignee: LEEDARSON LIGHTING CO., LTD.Inventors: Jiayuan Zhang, Changjing Zeng, Jingjing Su, Xiaoming Yang, Zongyuan Liu, Liangliang Cao
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Patent number: 11898729Abstract: 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: GrantFiled: November 27, 2022Date of Patent: February 13, 2024Assignee: LEEDARSON LIGHTING CO., LTD.Inventors: Yunfei Ou, Aijun Cheng, Bin Yi, Chengliang Liang, Hongxian San, Zongyuan Liu, Haiyan Chen, Yongjun Bao
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Publication number: 20240040681Abstract: 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: ApplicationFiled: July 26, 2023Publication date: February 1, 2024Inventors: Yangbin Xu, Yankun Li, Hemu Ye, Qiqiang Lin, Zongyuan Liu
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Publication number: 20230417397Abstract: 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: ApplicationFiled: November 27, 2022Publication date: December 28, 2023Inventors: Yunfei Ou, Aijun Cheng, Bin Yi, Chengliang Liang, Hongxian San, Zongyuan Liu, Haiyan Chen, Yongjun Bao
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Publication number: 20230389147Abstract: 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: ApplicationFiled: May 29, 2023Publication date: November 30, 2023Inventors: Changjing Zeng, Zongyuan Liu, Qiqiang Lin, Hao Chen, Yankun Li, Hemu Ye, Liangliang Cao
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Publication number: 20230284352Abstract: 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: ApplicationFiled: February 24, 2023Publication date: September 7, 2023Inventors: Yangbin Xu, Yankun Li, Hemu Ye, Qiqiang Lin, Zongyuan Liu, Liangliang Cao, Changjing Zeng
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Publication number: 20230239979Abstract: 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: ApplicationFiled: January 25, 2023Publication date: July 27, 2023Inventors: Zulun Hong, Qiqiang Lin, Yongqiang Wu, Zongyuan Liu, Yankun Li, Hemu Ye
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Patent number: 11706862Abstract: 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: GrantFiled: December 3, 2021Date of Patent: July 18, 2023Assignee: LEEDARSON LIGHTING CO., LTD.Inventors: Zongyuan Liu, Yankun Li, Yibin Chen, Hemu Ye
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Patent number: 11659640Abstract: 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: GrantFiled: January 26, 2022Date of Patent: May 23, 2023Assignee: LEEDARSON LIGHTING CO., LTD.Inventors: Yisheng Zheng, Qiqiang Lin, Hemu Ye, Yibin Chen, Zongyuan Liu, Yankun Li
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Publication number: 20230098381Abstract: 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: ApplicationFiled: December 2, 2022Publication date: March 30, 2023Inventors: Zongyuan Liu, Yankun Li, Yibin Chen, Hemu Ye
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Publication number: 20230010921Abstract: 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: ApplicationFiled: July 11, 2022Publication date: January 12, 2023Inventors: Yongqiang Wu, Yangbin Xu, Guiyuan Lin, Hemu Ye, Qiqiang Lin, Yankun Li, Zongyuan Liu
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Publication number: 20230008995Abstract: 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: ApplicationFiled: July 11, 2022Publication date: January 12, 2023Inventors: Jiayuan Zhang, Changjing Zeng, Jingjing Su, Xiaoming Yang, Zongyuan Liu, Liangliang Cao
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Patent number: 11543094Abstract: 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: GrantFiled: December 21, 2021Date of Patent: January 3, 2023Assignee: LEEDARSON LIGHTING CO., LTDInventors: Zongyuan Liu, Yankun Li, Yibin Chen, Hemu Ye
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Publication number: 20220418066Abstract: 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: ApplicationFiled: June 23, 2022Publication date: December 29, 2022Inventors: Qiqiang Lin, Yongqiang Wu, Hemu Ye, Zongyuan Liu, Yankun Li, Yibin Chen
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Publication number: 20220240359Abstract: 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: ApplicationFiled: January 26, 2022Publication date: July 28, 2022Inventors: Yisheng Zheng, Qiqiang Lin, Hemu Ye, Yibin Chen, Zongyuan Liu, Yankun Li
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Publication number: 20220235927Abstract: 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: ApplicationFiled: May 13, 2021Publication date: July 28, 2022Inventors: Bin Yi, Xiaoming Yang, Zhongyuan Liang, Zongyuan Liu, Jiayuan Zhang, Ruixiang Lin, Yongzhe Dong, Lei Zhang, Hongwei Ge, Zhirong Xie, JunJie Lin, Chuanbao Ye
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Publication number: 20220196218Abstract: 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: ApplicationFiled: December 21, 2021Publication date: June 23, 2022Inventors: Zongyuan Liu, Yankun Li, Yibin Chen, Hemu Ye