Large-angle all-round-lighting LED bulb

Abstract

Provided is a large-angle all-round-lighting LED bulb. The LED bulb is composed of a sealed luminous bulb shell, a sealing portion for sealing an opening in the bottom of the sealed luminous bulb shell, a luminous module and a lamp cap connected with the bottom of the sealing portion. The luminous module is strip-shaped LED all-round lamp filaments and is vertically installed above the sealing portion. An air tube is arranged in the sealing portion. The strip-shaped LED all-round lamp filaments are connected with a power lead contact of the sealing portion through connection wires. Radiating protection gas is injected into the sealed luminous bulb shell and is hydrogen or inert gas or a mixture of the hydrogen and the inert gas. The large-angle all-round-lighting LED bulb can also comprise multiple strip-shaped LED all-round lamp filaments symmetrically distributed surrounding the central axis of a core column, and included angles between the strip-shaped LED all-round lamp filaments and the central axis of the core column are acute angles. Radiating is carried out through injected low-viscosity and high-conductivity gas, and the LED bulb is low in weight, capable of achieving 360-degree all-round lighting and ideal in radiating.

Description

technical field [0001] The invention belongs to the field of lighting, and relates to an LED lamp, in particular to a large-angle full-circumference LED bulb. Background technique [0002] Based on the consideration of energy saving and environmental protection, incandescent lamps are gradually being abandoned by people. LED bulbs have the characteristics of long life, high luminous efficiency, no radiation and impact resistance, and are gradually replacing incandescent lamps. [0003] However, due to the directivity of the LED light source itself, the light distribution angle of the existing LED candle lights is still very narrow compared to the traditional incandescent light source that can distribute light in all directions even after the light is diffused by the diffusion cover. , The light distribution angle is generally below 120°, and the light cannot reach the back of the lamp, which will form a dark shadow. [0004] At present, although some LED bulb lamps can ach...

AI Technical Summary

Problems solved by technology

However, using this method first reduces the light efficiency of the LED, and secondly makes the LED bulb need to greatly compress the heat dissipation space when maintaining the replacement form, so that the temperature of the LED remains high during operation, and the power of the LED cannot be increased.

At the same time, the existing large-angle LED bulb lamps need to use a diffuser cover for astigmatism, and the lighting effect is still far behind that of traditional incandescent lamps.

[0005] In recent years, with the emergence of new materials and the progress of semiconductor manufacturing technology, LED filaments that can emit light in all directions have appeared, which can emit light within a range of 360 degrees. Heat dissipation. The radiators of existing LED light bulbs are generally made of metal or ceramics, which are heavy and easy to fall or break, posing a greater safety hazard

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