LED lamp bulb

Abstract

The invention relates to an LED lamp bulb which belongs to the technical field of LED semiconductor lighting. The LED lamp bulb comprises a lamp base, a lamp holder, a driver, a radiator, LED light source assemblies, a reflecting shade and a transparent shade, and is provided with a luminous zone composed of two or more independent small luminous zones, wherein each small luminous zone is composed of an independent radiating body on the radiator, one LED light source assembly, the reflecting shade and the transparent hood; the independent radiating body is a surface radiating body which extends out from the upper part of the radiator; the LED light source assembly is fixed on the radiator; the reflecting shade is fixed on the radiator; the transparent shade is fixed on the radiator and covers the upper part of the radiator and the LED light source assemblies installed on the radiator; the lower part of the radiator is a hollow radiating chamber; and the driver is installed on the lamp holder and in the radiating chamber of the radiator. The invention has the advantages of novel and unique structure, scientificity, reasonableness, convenient and fast assembly, low cost, good integral artistic quality, beautiful appearance, large radiating area, favorable radiating effect, long service life and the like.

Description

technical field [0001] The invention relates to a light bulb with LED as a light source, belonging to the technical field of LED semiconductor lighting. Background technique [0002] Existing LED light bulbs are mainly composed of lamp caps, lamp holders, drivers, radiators, LED light source components, light-transmitting covers, etc. One is to use reflective devices for light distribution, and all heat is only dissipated through single-ended radiators. The disadvantage is that the heat dissipation area is small, the power cannot be increased, the total output luminous flux of LED bulbs is low, and the light loss of reflected light distribution is large, and the overall system efficiency is low. Another kind of LED light bulb integrates the LED light source on a stem and places it in a closed bulb. The heat dissipation efficiency is extremely low, the LED power cannot be increased, and the overall light output of the LED is low, which makes it difficult to meet customer requ...

AI Technical Summary

Problems solved by technology

[0002] Existing LED light bulbs are mainly composed of lamp caps, lamp holders, drivers, radiators, LED light source components, and light transmission covers. One is to use reflective devices for light distribution, and all heat is only dissipated through single-ended radiators. The disadvantage is that the heat dissipation area is small, the power cannot be increased, the total output luminous flux of LED bulbs is low, and the light loss of reflected light distribution is large, and the overall system efficiency is low.

Another kind of LED light bulb integrates the LED light source on a stem and places it in a closed bulb. The heat dissipation efficiency is extremely low, the LED power cannot be increased, and the overall light output of the LED is low, which is difficult to meet customer requirements.

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