LED lamp string, and manufacturing method thereof and LED device used in LED lamp string

Abstract

The invention discloses an LED lamp string and LED devices used in the LED lamp string, the LED lamp string comprises a plurality of LED devices and a wire group, each LED device comprises an insulating body, a conductive terminal fixed on the insulating body and connected with the wire group, and a light-emitting LED chip and a control unit arranged on the insulating body, the insulating body is provided with an inward concave gap, the wire group at least comprises a first wire penetrating through the notch, and the first wire forms a cut-off part at the position of the notch. When the LED lamp string connected in series is produced, an LED device and a corresponding uninterrupted wire can be directly welded through a surface mount technology, and then the wire penetrating through the gap position is cut off through a cutter by utilizing the reserved gap position. Therefore, the patch welding operation of the lamp string can be rapidly completed, the shearing operation can also be rapidly completed through manual or automatic operation, the production efficiency is greatly improved, and the yield of products is improved.

Description

Technical field: [0001] The invention relates to the technical field of LED lamps, in particular to an LED lamp string, a manufacturing method and an LED device used on the LED lamp string. Background technique: [0002] An LED device generally refers to an LED lamp bead or an LED light source, which usually includes a bracket and an LED chip packaged on the bracket. Currently, LED devices using RGB light sources usually have more than two pins because they need a built-in control chip unit. The bracket of this LED device usually includes an insulating body, such as a plastic seat or a ceramic seat. An accommodating cavity is opened on the insulating body, and a plurality of conductive pins are integrally fixed on the insulating body, one end of the pin extends into the accommodating cavity to form a contact end, and the other end of the pin extends to the outer surface of the insulating body ( Usually the bottom surface), forming a soldering part (also called a pad). Dur...

AI Technical Summary

Problems solved by technology

If the cutting operation of the signal wire is carried out in the later stage of production, since the LED bracket is generally designed in a square or circular shape, the welding part is basically a plane, and it is difficult to perform the cutting operation

If the signal wire is cut in the early stage of production to form a segment of the signal wire segment, and then the signal wire segment is welded between the signal transmission conductive terminals of the LED device, this operation is more troublesome, and due to the material stress of the wire itself, after cutting The end of the signal wire section cannot be kept on a relatively flat surface, which is prone to missing soldering or weak soldering during the SMD soldering process, resulting in a high defect rate of the final LED device product, which greatly increased production costs

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