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Color-temperature-variable flexible lamp strip with inverted LED chips

A technology of LED chips and flexible light strips, which is applied to optical elements, lighting devices, and components of lighting devices used to change the spectral characteristics of emitted light, and can solve complex production processes, high costs, and stress points of lamp beads major issues

Inactive Publication Date: 2020-04-28
SHENZHEN WEIERSHENG PHOTOELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing flexible light strips have the following defects: LED lamp beads need to go through a series of processes such as crystal fixing, wire welding, and glue sealing, and the light strips also need to be mounted and threaded. The production process is complicated and the cost is high; excessive bending Improper bending or bending is prone to the problem of broken circuit at the soldering part of the lamp bead. Because the LED lamp bead is a hard body and the circuit board is a flexible body, the stress point of the lamp bead is relatively large, and it is possible to bend the circuit board many times. The phenomenon that the solder pins of the lamp bead break off the solder pad due to the large force

Method used

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  • Color-temperature-variable flexible lamp strip with inverted LED chips
  • Color-temperature-variable flexible lamp strip with inverted LED chips
  • Color-temperature-variable flexible lamp strip with inverted LED chips

Examples

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Embodiment Construction

[0021] In this embodiment, a flexible light strip with flip-chip LED chips with variable color temperature is taken as an example, and the present invention will be described in detail below in conjunction with specific embodiments and accompanying drawings.

[0022] see figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 and Figure 6 , shows a variable color temperature flexible light strip 100 with flip-chip LED chips provided by an embodiment of the present invention, including several flexible circuit board units 20 and several LED light-emitting chips 10 extending along the length direction of the light strip. The LED light-emitting chip 10 is fixed on the flexible circuit board unit 20 in the form of a flip-chip structure, and is covered with fluorescent glue of different color temperatures; the flexible circuit board unit 20 includes a circuit layer 21 and a supporting layer 22, and the circuit layer 21 has a plurality of wire structures 211, and the LED light...

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Abstract

The invention discloses a color-temperature-variable flexible lamp strip with inverted LED chips. The flexible lamp strip comprises a plurality of flexible circuit board units and a plurality of LED light-emitting chips, the flexible circuit board units and the LED light-emitting chips extend in the length direction of the lamp strip, and the LED light-emitting chips are fixed to the flexible circuit board units in an inverted chip structure mode and covered with fluorescent glue with different color temperatures, so that the LED light-emitting chips have different color temperatures. The flexible circuit board unit comprises a circuit layer and a supporting layer, the circuit layer is provided with a plurality of wire structures, and the LED light-emitting chips are welded to the two oppositely-arranged wire structures so as to ensure reliable connection of the wire structures. The supporting layer is provided with a supporting structure so as to increase the flexibility of the flexible lamp strip when the flexible lamp strip is bent, so that the bending angle of the flexible circuit board unit is controlled, and the LED light-emitting chip cannot fall off due to excessive bendingof the flexible circuit board unit.

Description

technical field [0001] The invention relates to the technical field of light strips, in particular to a flexible light strip with variable color temperature and flip-chip LED chips. Background technique [0002] Existing flexible light strips are generally formed by welding a plurality of SMD LED lamp beads on a long flexible circuit board, and then undergoing different processes such as threading tubes and dripping glue. The existing flexible light strips have the following defects: LED lamp beads need to go through a series of processes such as crystal fixing, wire welding, and glue sealing, and the light strips also need to be mounted and threaded. The production process is complicated and the cost is high; excessive bending Improper bending or bending is prone to the problem of broken circuit at the soldering part of the lamp bead. Because the LED lamp bead is a hard body and the circuit board is a flexible body, the stress point of the lamp bead is relatively large, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S4/24F21V19/00F21V23/00F21V23/06F21V9/45F21Y103/10F21Y115/10
CPCF21S4/24F21V19/002F21V19/0025F21V23/005F21V23/002F21V23/06F21V9/45F21Y2103/10F21Y2115/10
Inventor 汤勇
Owner SHENZHEN WEIERSHENG PHOTOELECTRIC CO LTD
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