LED filament light bulb

Abstract

The invention relates to an LED filament bulb. The LED filament bulb comprises a lamp holder, a bulb shell connected to the lamp holder, a core column extending into the interior of the bulb shell, anLED light source located in the bulb shell, a power supply connected with the LED light source and protective gas; the LED light source is located on the core column, and the power supply is installed on the core column and is located in the bulb shell; the power supply at least comprises a circuit board, the LED light source is located on the circuit board, and the circuit board is installed onthe core column; the bulb shell and the core column form a closed cavity, and the protective gas is located in the sealed cavity; and the protective gas comprises oxygen and helium. According to the LED filament bulb, the connected LED light source, the power supply and the core column extend into the cavity of the bulb shell, then sealing is carried out on the bulb shell, so that installation isconvenient and rapid, mechanical production efficiency is high, and production cost is low; and the protection gas is arranged, so that the service life of the LED filament bulb is prolonged.

Description

technical field [0001] The invention relates to the technical field of lighting, in particular to an LED filament light bulb. Background technique [0002] LED filament bulbs are widely used in the market because of their energy saving, environmental protection, long life and other characteristics. At present, the power supply of commonly used LED filament bulbs is installed inside the lamp holder to ensure that the LED filament bulbs can work normally. The light source extends into the inside of the bulb, and then seals the bulb so that the sealed bulb matches the lamp cap, which facilitates the connection between the bulb and the lamp cap, then puts the power supply in the inner cavity of the lamp cap, and finally connects the cap with the cap. This assembly method is cumbersome in process, low in production efficiency and high in production cost. On the other hand, the power supply is sealed in the bulb, and the electronic components need to be soldered to achieve electr...

AI Technical Summary

Problems solved by technology

[0002] LED filament bulbs are widely used in the market due to their energy saving, environmental protection, long life and other characteristics. At present, the power supply of commonly used LED filament bulbs is installed inside the lamp holder to ensure that the LED filament bulbs can work normally. The light source extends into the inside of the bulb, and then seals the bulb so that the sealed bulb matches the lamp cap, which facilitates the connection between the bulb and the lamp cap, then puts the power supply in the inner cavity of the lamp cap, and finally connects the cap with the cap. This assembly method is cumbersome in process, low in production efficiency and high in production cost

On the other hand, the power supply is sealed in the bulb, and the electronic components need to be soldered to achieve electrical connection. The solder contains organic volatile substances, which are easy to accumulate in the closed bulb, and the organic volatile substances will Pollution of the LED filament will cause the LED filament to turn black, resulting in relatively large light decay and reducing the service life of the LED filament bulb. Therefore, it is necessary to propose a new type of LED filament bulb to solve the above problems

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