FPC-based silicone extrusion dispensing LED neon light strip processing technology

A technology of LED neon lights and processing technology, applied in lighting and heating equipment, semiconductor devices of light-emitting elements, lighting devices, etc., can solve the problems of difficult processing of LED neon lights, achieve uniform and soft lighting, improve product qualification rate, and labor costs. low effect

Active Publication Date: 2018-07-20
BLUEVIEW ELEC OPTIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of FPC-based silicone extrusion dispensing LED neon light strip processing technology, to solve the problem of difficult processing of LED neon light strips in the prior art

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment

[0053] The LED neon strip processing technology disclosed by the present invention mainly includes seven steps of SMT patching, welding FPC soft board, aging impact, processing before extrusion molding, extrusion molding, glue dispensing and test packaging.

[0054] 1. SMT patch

[0055] The overall process: Use a solder paste printing machine to print high-temperature lead-free solder paste on the FPC soft board; then use a placement machine to paste LED lamp beads and other auxiliary components on the FPC soft board printed with solder paste; The FPC soft board after the chip is reflow soldered by a reflow soldering machine; finally, use a test tool to test whether the semi-finished product after reflow soldering is qualified, and it can flow to the soldering process after marking. Concrete process steps are as follows:

[0056] 1. Inkjet code: Use the inkjet printer to print the identification code on the back of the FPC soft board.

[0057] 2. Solder paste printing:

[...

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PUM

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Abstract

A flexible printed circuit (FPC) silicone rubber extrusion molding and spot dispensing processing technique for neon LED light strip. The technique comprises the following steps: a. adhering an LED bead and other components to a flexible printed circuit (FPC), then performing reflow soldering; b. using a lead-free manual soldering process to solder the FPC together to form a long strip; c. subjecting the long strip of FPC to an aging stress process; d. performing extrusion molding on the aging stress-qualified FPC; e. using a solid silicone rubber and an extrusion molding die to perform extrusion molding on the FPC, then baking in an oven for curing; f. performing two spot dispensing operations within a groove of the FPC after extrusion molding, using a heat gun to remove an air bubble, then baking in an oven for curing; and g. excising a semi-finished good from step (f) at a position where adjacent pieces are connected, then installing a cap to complete the processing. The processing technique can ensure a water-proof property, uniformity of emitted light, and consistency of color temperature of the LED neon light strip, and thus offer a high level of applicability.

Description

technical field [0001] The invention relates to a neon light strip, in particular to an FPC-based processing technique for extruding and dispensing LED neon light strips with silicone. Background technique [0002] With the popularization of the application of LED lamps, the finished forms of LED lamps have also shown various forms. Some high-end LED products have gradually shifted from hard LED lamp products to bendable soft lamp products. LED neon strips are one of them. A representative product form. The LED neon light strip mainly includes a casing and a circuit board. Electronic components and LED lamp beads are installed on the circuit board. The entire casing must be well sealed to ensure waterproof and moisture-proof effects. It is also necessary to be able to meet the requirement that the neon light strip can be bent, and the conventional processing technology is difficult to meet the technical indicators of the LED neon light strip. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S4/24F21Y115/10
CPCF21S4/00
Inventor 李忠训
Owner BLUEVIEW ELEC OPTIC TECH CO LTD
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