High power LED bulb

Abstract

The invention relates to a high power LED bulb, which comprises a connector for being connected with an illuminating lamp interface, an LED constant-current driving device, a radiator, an LED light source, a bulb cover and a circuit board, wherein the connector is provided with a cavity, and the LED constant-current driving device is fixed in the cavity; the radiator is a ceramic radiator with an annular radiating fin, and the upper part of the connector is fixedly connected with the lower part of the radiator; the circuit board is an aluminum-based circuit board, and the LED light source is fixed on the circuit board; and the circuit board is fixed at the top end of the radiator, the bulb cover is arranged above the radiator, and the lower part of the bulb cover is fixedly connected with the radiator. The high power LED bulb has the advantages of high luminescent efficiency, good heat dissipation effect, low cost, simple production and reliable performance.

Description

technical field [0001] The invention relates to a lighting fixture, in particular to a high-power LED light bulb. Background technique [0002] Traditional light sources are mainly incandescent lamps, energy-saving lamps, halogen lamps, and sodium lamps. These bulbs are low in cost and high in brightness, and have been widely used for a long time. However, these bulbs generally have the defects of low light efficiency and short life. During work, accidents such as fires and burns are often caused by excessive temperature; at the same time, energy-saving lamps and other gas discharge lamps contain harmful substances such as mercury and cadmium. Pollution and personal injury are caused, which is not conducive to environmental protection. Therefore, people have been pursuing a new type of lighting fixture with higher luminous efficiency, energy saving, low temperature during operation, environmental protection, safety and reliability. The emergence of white light LED just mak...

AI Technical Summary

Problems solved by technology

The emergence of white light LED just makes up for the shortage of the above light sources, and with the maturity of LED white light technology, more and more LED lamps are made of lighting fixtures using it as a light source, with various varieties and styles, and most of them use metal as heat sink , the light source is multiple LEDs, the cost is high, the production process is more complicated, and the light efficiency is not very high, so it is difficult to fully promote it. Therefore, it is necessary to continuously improve the existing LED lamps to achieve a simpler production and lower cost. , safer and more reliable, higher light efficiency, more beautiful, easier to promote practical high-power LED bulbs to replace traditional lamps

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