LED lamp strip

Abstract

The invention discloses an LED lamp strip. The LED lamp strip comprises two or more flexible printed circuits, strip type adhesive film units and a wire array, wherein LED elements are welded to the front surface of each flexible printed circuit; the two ends of each flexible printed circuit are provided with a positive pole and a negative pole used for powering on the LED elements; the strip typeadhesive film units are pasted to the back sides of the flexible printed circuits; the adhesive film units are shorter than the flexible printed circuits; the positive poles and the negative poles ofthe flexible printed circuits are located outside the area of the adhesive film units; the wire array is composed of a plurality of wires arranged side by side; the flexible printed circuits are arranged in the length direction of the wire array; the adhesive film units on the back sides of the flexible printed circuits are pasted to the wire array; the adhesive film units are located between theflexible printed circuits and the wire array; the wires of the wire array make surface contact with the adhesive film units; the positive poles and the negative poles of the flexible printed circuitsare welded to the corresponding wires of the wire array to form electric connection. The adhesive film units of the LED lamp strip cannot interfere with welding between the positive poles and the negative poles of the flexible printed circuits and the wires.

Description

technical field [0001] The invention relates to the field of LED circuit boards, in particular to an LED light strip. Background technique [0002] In the prior art, LED strips have a production process and structure as described in paragraphs [0039], [0041] and [0042] of Chinese patent document CN 203131554 U. To make short LED strips: make the soft LED short circuit board 1' (such as figure 1 shown), SMT chip LED lamp 2 and resistor 3, after reflow soldering, solder the LED lamp 2 and resistor 3 on the flexible LED circuit board 1' to form a flexible LED strip 1 (such as figure 2 Shown); making cable: a group of flat wires 6 are simultaneously arranged in a group of parallel slots 4 of the mold (such as Figure 5 shown), by means of the vacuum tube 5 to evacuate along the direction V, and the flat wire 6 is fixed in the groove 4, (as Figure 6 shown), and then fix the flat wire 6 fixed in the slot 4 with an adhesive insulating film 7, and take it out from the mold, so ...

AI Technical Summary

Problems solved by technology

[0003] It can be seen that the production of the above-mentioned long light strip is to first make the cable and the short light strip. The short light strip is formed by welding LEDs on the circuit board. There is a gap between the adjacent flat wires arranged side by side. The short light strip 1 relies The adhesive insulating film 7 in the gap between the flat wires of the flat wires is attached to the flat wires, and the positive and negative electrodes at both ends of the short light strip are welded to different flat wires. However, an obvious problem is to make the short light first. The tape is not conducive to the automatic production of long light strips. The second problem is that the short light strip 1 is attached to the cable by relying on the sticky insulating film 7 pasted on the gap between the flat wires of the cable. Between the light strip and the viscous insulating film 7, if the gap between adjacent flat wires is smaller than the width of the short light strip, the short light strip may not be able to stick to the viscous insulating film 7. Under this structure, in order to realize the short light strip In the viscous insulating film 7, the gap between adjacent flat wires must be equal to the width of the short light strip, resulting in the width of the cable being much wider than the width of the short light strip, wasting materials

Why is the viscous insulating film 7 not arranged between the short light strip and the flat wire for this patented technology? , short light strips and flat wires cannot be automatically welded by the machine, and the electrical connection cannot be completed

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