LED bulb

Abstract

The invention discloses an LED lamp bulb with an excellent dissipation effect. The LED lamp bulb comprises a lamp head (1), an insulation fixed seat (2) which is fixedly connected with the lamp head (1), a driving circuit board (3) fixedly connected with the insulation fixed seat and an LED chip (51); the driving circuit board (3) is electrically connected with the lamp head (1) and the LED chip (51) through conductors (7) respectively; the LED lamp bulb also comprises a heat dissipation lamp shell (4), and a light penetration protective screen (6); the heat dissipation lamp shell (4) is fixedly connected with the insulation fixed seat (2); the LED chip (51) is connected with a heat dissipation baseplate (5) which is fixedly connected with the heat dissipation lamp seat (4); the light penetration protective screen (6) covers the outside of the heat dissipation baseplate (5) and the LED chip (51); the external wall of the heat dissipation shell (4) is provided with a plurality of heat dissipation rods (41). The LED lamp bulb can be widely applied in the field of LED lamp bulbs.

Description

technical field [0001] The invention relates to an LED light bulb. Background technique [0002] As a new type of lighting source, LED is being more and more widely used in various occasions due to its outstanding advantages such as energy saving, environmental protection, high luminous efficiency, and long life. The traditional light bulb is an incandescent light bulb, which has low illuminance, no bright light, and no energy saving. After the incandescent light bulb, fluorescent light bulbs appear. A more energy-saving and environmentally friendly LED light source has been developed, and LED bulbs have been produced accordingly. It has become a development trend and research direction to use high-power LED light sources in bulbs and replace traditional incandescent and fluorescent lamps. Due to the high heat generation of high-power LEDs, if the heat cannot be dissipated in time, the LEDs will be damaged due to high temperature, which will seriously affect the service li...

AI Technical Summary

Problems solved by technology

Due to the large heat generation of high-power LEDs, if the heat cannot be dissipated in time, the LEDs will be damaged due to high temperature, which will seriously affect the service life, making the life of LED bulbs unsatisfactory, so good heat dissipation is required

Existing LED light bulbs generally use cooling fins to dissipate heat, and the cooling area is still not large enough; and because the gaps between the cooling fins are arranged in parallel, if the wind blows from a direction perpendicular to the cooling fins, the gaps between the cooling fins The air circulation in the middle is not smooth, that is, the flowing air outside has a bad effect on the forced heat dissipation of the bulb

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