Patents Assigned to RUIJIN DEYU OPTOELECTRONICS CO., LTD.
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Patent number: 11746964Abstract: An LED bulb without driving power supply includes a lamp cap, a bulb shell, a current limiting resistor, a core column, and an LED filament. The two ends of the LED filament are provided with connection terminals, the substrate of the LED filament is provided with two conductive lines, the two ends of the conductive line are respectively connected to the connection terminal through rectifier diodes. The rectifier diodes at both ends of the same conductive line are arranged in the opposite direction, and the rectifier diodes connecting different conductive lines on the same connection terminal are arranged in the opposite direction. The LED bulb can be directly connected to the external alternating current power supply to light the lighting without a driving power supply, which eliminates the cost of installing the driving power supply.Type: GrantFiled: January 17, 2022Date of Patent: September 5, 2023Assignee: RUIJIN DEYU OPTOELECTRONICS CO., LTD.Inventors: Zunxiang Huang, Yuanming Li, Dehua Huang, Yuanjian Li
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Patent number: 11470701Abstract: An alternating current LED filament includes a base board, rectifier diodes and light-emitting diodes. Two ends of the base board are provided with connecting terminals, and two conductive circuits are arranged on the base board. Two ends of each of the two conductive circuits are respectively connected to an external power supply through an at least one rectifier diode of the rectifier diodes. The rectifier diodes at two ends of a same conductive circuit are arranged in a reversed direction, the rectifier diodes connected to different conductive circuits on a same connecting terminal are arranged in the reversed direction, and the light-emitting diodes are connected to the two conductive circuits. A connecting terminal of the connecting terminals is connected to a corresponding conductive circuit through the at least one rectifier diode to improve a reverse withstand voltage capability.Type: GrantFiled: February 18, 2021Date of Patent: October 11, 2022Assignee: RUIJIN DEYU OPTOELECTRONICS CO., LTD.Inventors: Yuanming Li, Yuanjian Li
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Publication number: 20220136660Abstract: An LED bulb without driving power supply includes a lamp cap, a bulb shell, a current limiting resistor, a core column, and an LED filament. The two ends of the LED filament are provided with connection terminals, the substrate of the LED filament is provided with two conductive lines, the two ends of the conductive line are respectively connected to the connection terminal through rectifier diodes. The rectifier diodes at both ends of the same conductive line are arranged in the opposite direction, and the rectifier diodes connecting different conductive lines on the same connection terminal are arranged in the opposite direction. The LED bulb can be directly connected to the external alternating current power supply to light the lighting without a driving power supply, which eliminates the cost of installing the driving power supply.Type: ApplicationFiled: January 17, 2022Publication date: May 5, 2022Applicant: RUIJIN DEYU OPTOELECTRONICS CO., LTD.Inventors: Zunxiang HUANG, Yuanming LI, Dehua HUANG, Yuanjian LI
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Publication number: 20220095432Abstract: An alternating current LED filament includes a base board, rectifier diodes and light-emitting diodes. Two ends of the base board are provided with connecting terminals, and two conductive circuits are arranged on the base board. Two ends of each of the two conductive circuits are respectively connected to an external power supply through an at least one rectifier diode of the rectifier diodes. The rectifier diodes at two ends of a same conductive circuit are arranged in a reversed direction, the rectifier diodes connected to different conductive circuits on a same connecting terminal are arranged in the reversed direction, and the light-emitting diodes are connected to the two conductive circuits. A connecting terminal of the connecting terminals is connected to a corresponding conductive circuit through the at least one rectifier diode to improve a reverse withstand voltage capability.Type: ApplicationFiled: February 18, 2021Publication date: March 24, 2022Applicant: RUIJIN DEYU OPTOELECTRONICS CO., LTD.Inventors: Yuanming LI, Yuanjian LI