SMD lamp bead

A lamp bead, a new type of technology, applied in the direction of electrical components, electrical solid devices, circuits, etc., can solve the problem of not being able to change the series and parallel relationship of internal LED chips, and achieve a practical and reliable structure
CN107482108APending Publication Date: 2017-12-15GUANGDONG LCLED LIGHTING
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG LCLED LIGHTING
Publication Date
2017-12-15

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Abstract

The invention discloses a novel SMD lamp bead comprising a base and LED chips. The base is provided with a packaging stand and conductive sheets which are arranged on the packaging stand and used for being connected with the LED chips. The packaging stand is provided with four conductive sheets, and each conductive sheet extends towards the outside from inside along the packaging stand to the two sides of the external part of the packaging stand to form conductive pins. The conductive sheets are symmetrically arranged on the base in a way that every two conductive sheets are grouped. The LED chip is connected between the two conductive sheets of each group. A packaging layer for packaging the LED chips covers the packaging stand. After the SMD lamp bead is formed through packaging, series-parallel switching can be realized by changing the connecting mode of the conductive pins and the external circuit so that the current and the voltage required for normal working of the lamp bead can be changed and the structure is practical and reliable.
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Description

technical field

[0001] The invention relates to the technical field of SMD packaging LEDs, in particular to a novel SMD packaging-based lamp bead. Background technique

[0002] SMD refers to surface mount devices, and SMD SMD LEDs are surface mount light emitting diodes. SMD patch helps to improve production efficiency and different equipment applications. It is a solid-state semiconductor device that can directly convert electricity into light. The LED bracket is the bottom base of the LED lamp bead before packaging. On the basis of the LED bracket, the chip is fixed in, the positive and negative electrodes are soldered, and then packaged with packaging glue. After the traditional SMD LED lamp beads are packaged, the internal structure is fixed, that is, the series-parallel relationship of the internal LED chips cannot be changed, and an unchangeable range is specified for the voltage and current of the lamp beads, which has great limitations in use. Contents of the inve...

Claims

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