LED bulb

Abstract

The invention provides an LED bulb which comprises a lamp cap, a lamp holder, a light source module provided with an LED and a circuit board and a radiating column that is used for realizing omnibearing lighting angel by increasing the height of a light source and has the function of radiating; wherein, the lamp holder is a radiator, one end of which is connected with the lamp cap, and the other end is provided with the radiating column; the free end of the radiating column is fixed with the light source module; thus, the radiating column can heighten the position of the light source to shift the light source out of the lamp holder and increase the irradiation angle of the light source, thus realizing approximate 360-degree lighting effect of the LED bulb and improving the defect that the light rays of the LED are blocked out by the lamp holder since the LED is installed at the rear part of a base plate of the lamp holder, close to the horizontal direction; the radiating column also has the function of radiating, so that the heat generated by the LED in the working period can be quickly transferred to the radiating aluminum lamp holder contacted with the air through the radiating column, thus enlarging the radiating area, fully guaranteeing the radiating requirements and the service life of the LED, reducing the weight of the high-power LED bulb and not increasing the size of the bulb.

Description

technical field [0001] The invention relates to the technical field of LED lighting, in particular to an LED light bulb. Background technique [0002] At present, the country pays more and more attention to lighting energy saving and environmental protection issues, and has been vigorously promoting the use of LED bulbs. With the continuous improvement of LED technology, energy-saving lamps and incandescent lamps will be replaced by LED bulbs. [0003] Since the advent of LED light-emitting tubes, most of the LED bulbs designed at home and abroad are divided into two types: one is made of small-power LEDs with a diameter of 5 mm, and multiple LEDs are densely arranged on ordinary PCB boards to emit light. Usually, the power is 1-- -3W, its advantages are low price and simple manufacturing process, but its disadvantages are unidirectional irradiation, no heat dissipation design, high light decay rate, and its lifespan is only about 1 year. The other is to use multiple high-...

AI Technical Summary

Problems solved by technology

[0004] The invention solves the problems of small irradiation angle of LED bulbs and increased weight of lamps due to the external heat dissipation part of high-power LED bulbs, provides an LED bulb, realizes the luminous effect of LED bulbs approximately 360 degrees, and reduces the weight of lamps of high-power LED bulbs. Do not increase the size of the bulb

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