LED bulb lamp

Abstract

The invention provides an LED bulb lamp, and belongs to the technical field of lighting. The LED bulb lamp solves the problems that an existing bulb lamp is small in light-emitting angle and poor in heat dissipation effect. The LED bulb lamp comprises a lamp cap and a spherical light-transmitting cover arranged in the front of the lamp cap. A lampwick column coaxial with the lamp cap is arranged inside the light-transmitting cover. An annular COB two-sided light source which is perpendicular to the lampwick column is arranged in the front of the lampwick column. The COB two-sided light source comprises an annular transparent substrate, LED light-emitting modules and yellow fluorescence sealant layers, wherein the LED light-emitting modules and the yellow fluorescence sealant layers are arranged on the transparent substrate; the transparent substrate is provided with a positive electrode and a negative electrode, wherein the positive electrode and the negative electrode extend out of the yellow fluorescence sealant layers; the two ends of each LED light-emitting module are electrically connected with the positive electrode and the negative electrode respectively; the lampwick column is further provided with a first wire and a second wire, wherein the first wire is used for being connected with a positive electrode contact and the positive electrode, and the second wire is used for being connected with a negative electrode contact and the negative electrode; each LED light-emitting module is formed by connecting a plurality of blue-light chips in series. The LED bulb lamp has the advantages that the lighting angle is large, the structural design is reasonable, and the heat dissipation effect is good.

Description

technical field [0001] The invention belongs to the technical field of lighting, and relates to a bulb lamp, in particular to a double-sided LED bulb lamp. Background technique [0002] In the field of lighting, light bulbs are widely used in indoor lighting because of their simplicity, ease of use, and low price. The filaments of traditional lighting fixtures are generally composed of tungsten wires and other metal wires that can directly emit light. Large and other defects, and generally only emit yellow light. For ordinary LED lights, the light source is in the form of flat light, and the light source angle is between 120-140°, which cannot achieve large-angle light emission. Especially the packaging of multi-chip basic light source substrates. There are still several deficiencies in this packaged light source: first, the light-emitting angle is small, and in a specific lighting application field, a specific lighting effect cannot be achieved, which will cause defects i...

AI Technical Summary

Problems solved by technology

There are still several deficiencies in this packaged light source: first, the light-emitting angle is small, and in a specific lighting application field, a specific lighting effect cannot be achieved, which will cause defects in the use of the light source; second, the light efficiency of the integrated chip light source is not high enough , The phenomenon of light attenuation is serious, which will bring defects in the use of lighting products, which is not conducive to wide application

3. The structure is complicated, the manufacturing cost is high, and it is not used to promote the use

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