a led light bulb

Abstract

An LED (light-emitting diode) bulb comprises a glass envelope, a stem, a plastic shell, an LED light source, a bulb cap and a group of LED light-emitting bars, wherein the top of a base of the stem is provided with a strip-shaped boss, an insulated central fixed column is upwardly extended from the center of the strip-shaped boss, the group of LED light-emitting bars are mounted on a first circuit board and a second circuit board, so that an LED light-emitting bar module is formed, the module is mounted on the strip-shaped boss and the central fixed column, and conductive copper foils are so arranged on the first circuit board and the second circuit board that the group of LED light-emitting bars are connected in series or in series and parallel, and the LED power supply supplies power to the group of LED light-emitting bars. The light-emitting bar module structure of the LED bulb can enhance the reliability of the LED bulb and prolong the service life of the LED bulb, the LED light-emitting bar module can be assembled alone in advance, consequently, mass production can be realized, the efficiency of production is increased, and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of LED electric light sources, in particular to an LED light bulb. Background technique [0002] Because LED lighting has the characteristics of point light source and directionality, it is difficult for LED lights to completely replace traditional incandescent lamps and achieve full light distribution lighting. There is an existing LED light strip, which is to package a group of LED chips on a transparent substrate, and lead out two pins at both ends. When connected to a DC or AC power supply, it can emit light at all angles like a tungsten wire. Using this LED light strip to make The finished lamp can perfectly replace the traditional incandescent lamp. The pins at both ends of these LED light strips are directly spot-welded and fixedly connected to the hard support rod above the core column and the wire drawn out from the middle of the core column respectively. In the application of the existing LED ele...

AI Technical Summary

Problems solved by technology

In the above-mentioned structure, these metal wires are directly overlapped and spot-welded, which will easily cause false welding. At the same time, affected by changes in the use environment, especially in the process of storage and transportation, they will be subject to severe vibration and impact. At this time, this wire The connection will tear off the wire or disconnect the weld under the impact force, resulting in the failure of the LED lamp

At the same time, there are also disadvantages of complex structure and assembly process and low production efficiency.

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