US 12,000,571 B2
LED string light, and production method and device thereof
Xiwan Shan, Zhuhai (CN); Tuxiu Yang, Zhuhai (CN); Yundong Ai, Zhuhai (CN); Jie Zhang, Zhuhai (CN); Qunlin Li, Zhuhai (CN); Qiming Liu, Zhuhai (CN); Su Yan, Zhuhai (CN); Jingtian Wu, Zhuhai (CN); Yanyong Liu, Zhuhai (CN); Junchao He, Zhuhai (CN); Jiahui Cai, Zhuhai (CN); and Yue Chen, Zhuhai (CN)
Assigned to Zhuhai Bojay Electronics Co. Ltd., Zhuhai (CN)
Filed by Zhuhai Bojay Electronics Co. Ltd., Zhuhai (CN)
Filed on May 2, 2023, as Appl. No. 18/310,973.
Application 18/310,973 is a continuation of application No. 18/158,056, filed on Jan. 23, 2023, granted, now 11,879,618.
Application 18/158,056 is a continuation of application No. 17/679,990, filed on Feb. 24, 2022, granted, now 11,598,513, issued on Mar. 7, 2023.
Application 17/679,990 is a continuation of application No. 16/888,282, filed on May 29, 2020, granted, now 11,293,628, issued on Apr. 5, 2022.
Claims priority of application No. 201910842589.2 (CN), filed on Sep. 6, 2019.
Prior Publication US 2023/0265994 A1, Aug. 24, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. F21V 21/002 (2006.01); F21S 4/10 (2016.01); F21V 19/00 (2006.01); F21V 23/00 (2015.01); F21Y 103/10 (2016.01); F21Y 115/10 (2016.01); H05B 45/48 (2020.01)
CPC F21V 21/002 (2013.01) [F21S 4/10 (2016.01); F21V 19/0025 (2013.01); F21V 23/002 (2013.01); H05B 45/48 (2020.01); F21Y 2103/10 (2016.08); F21Y 2115/10 (2016.08)] 4 Claims
OG exemplary drawing
 
1. An LED (light emitting diode) string light, comprising:
a first conducting wire, a second conducting wire, and a third conducting wire which are arranged in parallel, wherein the first conducting wire, the second conducting wire and the third conducting wire all comprise a conducting wire core and an insulation layer coating a surface of the conducting wire core, and the first conducting wire and the second conducting wire defines a plurality of lamp welding regions, each including a first welding spot on the first conducting wire and a second welding spot on the second conduction wire;
a plurality of surface-mounted-device (SMD) LEDs respectively disposed at the plurality of lamp welding regions, wherein each SMD LED has a first welding leg and a second welding leg, which are respectively welded onto the first welding spot and the second welding spot at one corresponding lamp welding region, and the plurality of the SMD LEDs are connected in parallel; and
a plurality of encapsulation colloids respectively coating the plurality of the SMD LEDs and surfaces of portions of the third conducting wire corresponding to positions of the plurality of the SMD LEDs, to form a plurality of lamp beads.