CN204420625U - A kind of straight-down negative LED panel lamp light emitting source apparatus - Google Patents

Abstract

The utility model discloses a light emitting source device of a direct-down LED panel lamp, which relates to the technical field of LED lighting. Both ends of the semi-cylindrical light-guiding column are equipped with LED lights, and there are multiple hemispherical protrusions evenly distributed on the rectangular surface of the semi-cylindrical light-guiding column, and multiple diamond-shaped surfaces are evenly arranged on the curved surface of the semi-cylindrical light-guiding column lens. Its structural design is reasonable and novel. The special light angle of the cylindrical light guide column enables the light to show a uniform refraction of 180°, so that the light can be scattered in the form of a surface light source, which can well avoid cloud patterns, light shadows and other bad visual effects. Efficiency, and then achieve a uniform and soft macroscopic visual effect. The LED lamp uses a mirror silver aluminum substrate as the substrate of the LED chip, so that the reflectivity can reach 98%, so that the light of the chip can be better excited, and the LED lamp can be improved. The light effect increases the luminous angle of the light and improves the luminous efficiency.

Description

A direct type LED panel light source device

technical field

The utility model relates to a light-emitting source device of a direct-down LED panel lamp, which belongs to the technical field of LED lighting.

Background technique

Nowadays, as a new type of lighting fixture, LED panel lights are widely used because of their large luminous area and uniform and soft light. The PMMA light guide plate is used in the side-entry panel light to make the light pass through the dots to achieve the effect of uniform light output, but it is expensive and heavy. Although the direct-down panel light does not need the light guide plate today, to achieve uniformity of light, it is necessary to use a large number of LED lamp beads and affix the lens with a light diffusion plate with high haze: due to the development of the current direct-down panel light The light source adopts the principle of backlight, and the matching degree between the lens and the lamp beads on the light strip is not easy to control, and the panel light is only allowed to use a diffuser plate without an optical film, so the visual effect often shows moiré and For lighting, the improvement solution is to use a high-fog diffuser plate, but because the haze of the diffuser plate is proportional to the light transmittance, when the high-fog diffuser plate is used to achieve the uniform and soft macro visual effect of the direct-down panel light, its light effect will appear low.

Contents of the invention

In view of the above problems, the technical problem to be solved by the utility model is to provide a direct-lit LED panel light source device.

The light-emitting source device of the direct-down LED panel light of the utility model comprises a semi-cylindrical light guide column a, a hemispherical protrusion 1, a rectangular surface 2, an arc-shaped surface 3 and an LED lamp 4, and the inner two ends of the semi-cylindrical light guide column a Both are provided with LED lights 4, a plurality of hemispherical protrusions 1 are evenly distributed on the rectangular surface 2 of the semi-cylindrical light guide column a, and a plurality of diamond-shaped surface lenses 3 are evenly arranged on the arc-shaped surface 3 of the semi-cylindrical light guide column a -1.

Preferably, the substrate of the LED lamp 4 includes a substrate body 4-1, a mirror silver aluminum substrate 4-2, a thermally conductive insulating plate 4-3 and a copper foil circuit board 4-4, and a mirror silver aluminum substrate is arranged inside the substrate body 4-1. The aluminum substrate 4-2 is provided with a thermally conductive insulating board 4-3 and a copper foil circuit board 4-4 above the substrate body 4-1.

Preferably, the semi-cylindrical light guide column a is a solid polymethyl methacrylate light guide column.

Preferably, the hemispherical protrusion 1 can be made by laser engraving silk screen dots.

The beneficial effects of the utility model: it can overcome the disadvantages of the prior art, the structural design is reasonable and novel, and the special light-emitting angle of the cylindrical light guide column makes the light show a uniform refraction of 180°, so that the light can be distributed in the form of a surface light source Scattering out can well avoid bad visual effects such as moiré and light shadows, and then achieve uniform and soft macroscopic visual effects. LED lights use mirror silver aluminum substrates as the substrate of LED chips, so that the reflectivity can reach 98%, so that It can make the light of the chip better stimulated and improve the light efficiency of the LED lamp. Part of the light emitted by the LED lamp passes through the light guide column and illuminates the hemispherical protrusion on the bottom surface along the direction of the light guide column. Through the function of the hemispherical protrusion Evenly reflect the light around the light guide column, and then refract the light to the cavity of the panel light module through the diamond-shaped surface lens structure on the curved surface of the light guide column; the other part of the light is directly refracted to the module through the diamond-shaped lens structure on the surface of the light guide column cavity; in this way, the luminous angle of the light is increased, the luminous efficiency is effectively improved, the power consumption is reduced, and the overall luminous efficiency of the panel light is greatly improved at the same time.

Description of drawings:

For ease of illustration, the utility model is described in detail by the following specific implementation and accompanying drawings.

Fig. 1 is a structural representation of the utility model;

Fig. 2 is the structural representation of LED lamp in the utility model;

Fig. 3 is a schematic diagram of the internal structure of Fig. 2;

Fig. 4 is a structural schematic diagram of a plurality of diamond-shaped surface lenses evenly arranged on the arc-shaped surface of the utility model;

Fig. 5 is a schematic diagram of the installation structure of the utility model.

Detailed ways:

As shown in Figures 1-5, this specific embodiment adopts the following technical solutions: it includes a semi-cylindrical light guide column a, a hemispherical protrusion 1, a rectangular surface 2, an arc surface 3 and an LED lamp 4, and the semi-cylindrical light guide column Both ends of a are provided with LED lamps 4, a plurality of hemispherical protrusions 1 are evenly distributed on the rectangular surface 2 of the semi-cylindrical light guide a, and a plurality of Rhomboid surface lens 3-1.

Preferably, the substrate of the LED lamp 4 includes a substrate body 4-1, a mirror silver aluminum substrate 4-2, a thermally conductive insulating plate 4-3 and a copper foil circuit board 4-4, and a mirror silver aluminum substrate is arranged inside the substrate body 4-1. The aluminum substrate 4-2 is provided with a thermally conductive insulating board 4-3 and a copper foil circuit board 4-4 above the substrate body 4-1.

Preferably, the semi-cylindrical light guide column a is a solid polymethyl methacrylate light guide column.

Preferably, the hemispherical protrusion 1 can be made by laser engraving silk screen dots.

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (2)

1. a straight-down negative LED panel lamp light emitting source apparatus, it is characterized in that: it comprises semicylinder light-guiding pillar (a), hemispherical protuberances (1), rectangular surfaces (2), curved surfaces (3) and LED (4), the inner two ends of semicylinder light-guiding pillar (a) are provided with LED (4), the rectangular surfaces (2) of semicylinder light-guiding pillar (a) is evenly distributed with multiple hemispherical protuberances (1), the curved surfaces (3) of semicylinder light-guiding pillar (a) multiple diamond shaped surface lens (3-1) have been evenly arranged, the substrate of described LED (4) comprises substrate body (4-1), mirror-like silver aluminium base (4-2), heat conductive insulating plate (4-3) and copper foil circuit plate (4-4), substrate body (4-1) inside is provided with mirror-like silver aluminium base (4-2), the top of substrate body (4-1) is provided with heat conductive insulating plate (4-3) and copper foil circuit plate (4-4).

2. a kind of straight-down negative LED panel lamp light emitting source apparatus according to claim 1, is characterized in that: described semicylinder light-guiding pillar (a) is solid polymethyl methacrylate light-guiding pillar.

3. a kind of straight-down negative LED panel lamp light emitting source apparatus according to claim 1, is characterized in that: described hemispherical protuberances (1) can adopt laser engraving screen print lattice-point to make.