IP Library Granted Patent US 12663127
Granted Patent B2
US 12663127 · App. 18/930,978 · Granted Jun 23, 2026

Lighting device with a flexible circuit board connection structure

Inventors: Fuxing Lu (Xiamen, CN); Zehu Dai (Xiamen, CN); Huibao Luo (Xiamen, CN)
Assignee: Xiamen PVTECH Co., Ltd.
F21S4/26F21V23/06F21Y2103/10
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Quick Facts
Patent No.
US 12663127
App. No.
18/930,978
Granted
Jun 23, 2026
Kind
B2
Abstract

The present invention discloses a lighting device with a flexible circuit board connection structure, which includes a backboard, a plurality of light source board, and a flexible circuit board. The light source boards are fixed to one side of the backboard, and each of the light source boards includes a plurality of electrodes. The flexible circuit board includes a plurality of soldering structures corresponding respectively to the light source boards, and each of the soldering structures includes a plurality of soldering pads. The electrodes of each of the light source boards are respectively soldered to the pads of the soldering structure corresponding thereto.

Claims (13)

1 . A lighting device with a flexible circuit board connection structure, comprising:

a backboard;

a plurality of light source boards fixed to one side of the backboard, wherein each of the light source boards comprises a plurality of electrodes, a circuit board and a plurality of light sources, and the electrodes and the light sources are disposed on the circuit board; and

a flexible circuit board comprising a plurality of soldering structures corresponding respectively to the light source boards, wherein each of the soldering structures comprises a plurality of soldering pads;

wherein the electrodes of each of the light source boards are respectively soldered to the soldering pads of the soldering structure corresponding thereto.

2 . The lighting device with the flexible circuit board connection structure as claimed in claim 1 , wherein a boundary of the soldering pad is circular and the soldering pad has a hole, wherein the hole contacts the boundary of the soldering pad, and the soldering pad is crescent-shaped.

3 . The lighting device with the flexible circuit board connection structure as claimed in claim 2 , wherein the hole is circular, semicircular, elliptical, or capsule-shaped.

4 . The lighting device with the flexible circuit board connection structure as claimed in claim 1 , wherein a boundary of the soldering pad is rectangular and the soldering pad has a hole, wherein the hole is disposed at a center of the soldering pad.

5 . The lighting device with the flexible circuit board connection structure as claimed in 4 , wherein the hole is circular, semicircular, or elliptical.

6 . The lighting device with the flexible circuit board connection structure as claimed in claim 4 , wherein the hole is capsule-shaped.

7 . The lighting device with the flexible circuit board connection structure as claimed in claim 1 , wherein the soldering pad is rectangular.

8 . The lighting device with the flexible circuit board connection structure as claimed in claim 1 , wherein a number of the soldering pads in each of the soldering structures is three, and a connection of center points of the soldering pads forms a triangle.

9 . The lighting device with the flexible circuit board connection structure as claimed in claim 1 , wherein a number of soldering pads in each of the soldering structures is four, and a connection of center points of the soldering pads forms a rectangle.