CN106838728A - A LED panel light - Google Patents

Abstract

The invention relates to the field of LED lamps, and aims to provide an LED panel lamp which comprises an LED light source and a light guide plate, wherein the LED light source is arranged relative to one side wall of the light guide plate, the top surface of the light guide plate is a reflecting surface, the bottom surface of the light guide plate is a light emergent surface, a light guide strip which is convex downwards is arranged on the light emergent surface, the light guide strip is formed by enclosing a first side surface, a second side surface and a third side surface, two ends of the third side surface are respectively connected with the first side surface and the second side surface, and the light guide strip bends and deflects towards one side of the light emergent surface. The invention has the beneficial effects that: the structure of the light guide strip is designed, so that the LED light source passes through the light guide strip, and then the angle control is realized; the focus illumination and the floodlight illumination are combined, so that multi-angle light emission of one lamp is realized, and the maximum illumination requirement is met.

Description

A LED panel light

technical field

The invention relates to the field of LED lamps, in particular to an LED panel lamp.

Background technique

Generally known light guide plates are mostly lateral light guide plate structures with light emitting diodes, and the light emitting angles are fixed and controlled by the microstructures on the light guide plate. At present, most of the light guide plates used on lamps are flat light guide plates. When they are applied to lights on the ceiling, such as panel lights, dark areas will be formed on the walls and corners, so some spaces (such as office space/shopping malls/classrooms/books) halls, etc.), it is necessary to install downlights and other lamps to make up for the brightness of this part of the dark area. However, this leads to messy and inconsistent lighting in the ceiling area, and it is impossible to maintain uniform lighting. The beauty is greatly reduced.

The Chinese invention patent with the application number 201210266524.6 discloses a lighting device with adjustable light output angle, which includes a light source for providing a light; and a light guide plate located on one side of the light source. A first surface and a second surface, the second surface has several plastic microstructures, wherein the light enters the light guide plate and exits from the first surface through reflection or refraction of the several plastic microstructures; wherein , the light exiting the first surface and a normal line of the first surface have a first light exit angle, and when the plastic microstructure is deformed, the first light exit angle will be correspondingly changed to a second light exit angle Light angle. In the present invention, when an external force is applied to the shapeable microstructure, the shapeable microstructure is correspondingly deformed to achieve the light output angles of the light guide plate with different requirements.

Therefore, there is an urgent need to provide an LED panel light that can realize multi-angle light emission from one light, so as to meet the maximum lighting demand.

Contents of the invention

The object of the present invention is to overcome the above-mentioned defects and provide an LED panel light with high light extraction efficiency and multi-angle light emission from one light.

In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:

An LED panel light, comprising an LED light source and a light guide plate, the LED light source is arranged relative to a side wall of the light guide plate, the top surface of the light guide plate is a reflective surface, the bottom surface of the light guide plate is a light-emitting surface, the A downwardly protruding light guide strip is provided on the light-emitting surface. The light guide strip is surrounded by the first side, the second side and the third side. The two ends of the third side are respectively connected to the first side and the third side. The second side is connected, and the light guide strip bends and deflects toward the side of the light-emitting surface.

The beneficial effect of the present invention is that: the LED light source is installed relative to the side wall of the light guide plate, and the light emitted by the LED light source is guided out from the light-emitting surface after passing through the light guide strip; The light emitting angle of the light guide plate enables the light guide plate to realize angle control when it is applied to lamps, combining focus lighting and flood lighting to realize multi-angle light emission of one lamp, so as to meet the maximum lighting demand; arrange LED panel lights according to needs , Abandon the appearance of messy and different lamp types on the ceiling, improve the cleanliness and aesthetics of the environment; at the same time, make maximum use of the light guide material of the light guide plate to realize the greater value of the controllable angle light guide material.

Description of drawings

Fig. 1 is a cross-sectional view of the structure of an LED panel light according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of an LED panel light according to an embodiment of the present invention (arrows indicate light directions).

3 is a partially enlarged view of an LED panel light according to an embodiment of the present invention (the arrow indicates the light direction, and θ indicates the angle formed by the third side surface and the light-emitting surface).

Fig. 4 is a schematic structural diagram of an LED panel light according to Embodiment 2 of the present invention (the arrow indicates the light direction).

Fig. 5 is a partially enlarged view of the LED panel light of Embodiment 2 of the present invention (the arrow indicates the light direction, and θ indicates the angle formed by the third side surface and the light-emitting surface).

Fig. 6 is a schematic structural diagram of an LED panel light according to Embodiment 3 of the present invention (the arrow indicates the light direction).

Label description:

1-aluminum frame; 2-LED light source; 3-light guide plate; 4-reflective paper; 5-EVA pad; 6-back panel; 7-light guide strip; 8-laser dot; Two sides; 11-third side; 91-refraction section; 92-reflection section.

detailed description

In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

The most critical idea of the present invention is: by designing the structure of the light guide strip, the LED light source can realize angle control after passing through the light guide strip; combining focus lighting and flood lighting to realize multi-angle light emission of one lamp, so as to achieve the maximum lighting needs.

Please refer to Figures 1-6, the LED panel light of this embodiment includes an LED light source 2 and a light guide plate 3, the LED light source 2 is arranged relative to the side wall of the light guide plate 3, and the top surface of the light guide plate 3 It is a reflective surface, and the bottom surface of the light guide plate 3 is a light-emitting surface, and the light-emitting surface is provided with a downwardly protruding light guide strip 7, and the light guide strip 7 is composed of the first side 9, the second side 10 and the second side. It is surrounded by three sides 11, and the two ends of the third side 11 are respectively connected with the first side 9 and the second side 10, and the light guide strip 7 is bent and deflected toward the side of the light emitting surface.

The working process of the present invention is as follows: the light guide strip 7 is arranged on the light-emitting surface of the light guide plate 3, and the light guide strip 7 is optically designed according to the lighting requirements in the actual life scene to form a certain shape of protrusions. Form the corresponding texture, place the LED light source 2 at the relative position of the side wall in the direction of the texture of the light guide plate 3, the light emitted by the LED light source 2 enters the light guide plate 3 from the side wall opposite to the LED light source 2, and passes through the light guide plate 3 The optical texture formed by the light guide strip 7 forms light at a specific angle; the reflective paper 4, the EVA pad 5 and the back plate 6 are sequentially fixed on the reflective surface of the light guide plate 3 from bottom to top; finally, the two aluminum frame 1 The ends are sleeved on the back plate 6 and the light guide strip 7, and fixed by bolts to form a complete panel light structure.

It can be seen from the above description that the beneficial effects of the present invention are: according to the lighting requirements, the optical texture design of the light guide strip is designed into a certain structure; the LED light source is installed relative to the side wall of the light guide plate, and the light emitted by the LED light source passes through the light guide Accurate control of the light emitting angle of the panel light is realized after the strip, and the combination of the focus lighting and the floodlighting realizes the multi-angle light emission of one light, so as to meet the maximum lighting demand; the LED panel lights are arranged according to the needs, and the messy and uneven lights on the ceiling are eliminated. The appearance of the lamp type improves the cleanliness and aesthetics of the environment; at the same time, the light guide material of the light guide plate is used to the maximum extent to realize the greater value of the controllable angle light guide material.

Further, the light guide plate 3 and the light guide strip 7 are integrally formed through an extrusion process.

It can be seen from the above description that the light guide plate and the light guide strip are integrally formed by extrusion molding, and various optically designed textures can be formed according to actual lighting needs. The structure is simple and stable, and it is easy to process.

Further, the light guide strip 7 is a strip structure parallel to the direction in which the first sidewall extends.

It can be seen from the above description that the strip-shaped light guide strip has better multi-angle light emitting ability, so that the light extraction effect is better.

Further, the first side 9 includes a reflection section 92 and a refraction section 91, the reflection section 92 is used to reflect light toward the third side 11 and make the light exit through the third side 11, and the refraction section 91 is used to The exterior refracts light, and the refraction section 91 is disposed between the reflection section 92 and the third side 11 .

Further, the acute angle formed between the reflective section 92 and the light exit surface is larger than the acute angle formed between the refraction section 91 and the light exit surface.

From the above description, it can be seen that by setting the reflection section and the refraction section, the combined effect of the focus lighting and the flood lighting is better, and the lighting effect is better.

Further, the LED light sources 2 are arranged in strips parallel to one side wall of the light guide plate 3 .

It can be known from the above description that the LED light sources are arranged in strips, which can dissipate more energy and make the lighting effect better.

Further, laser marking is provided on the reflective surface of the light guide plate 3 .

From the above description, it can be seen that point light sources or line light sources can be efficiently transformed into surface light sources of various shapes.

Please refer to Figures 1-3, Embodiment 1 of the present invention is:

An LED panel light, comprising an LED light source 2 and a light guide plate 3, the LED light source 2 is arranged relative to a side wall of the light guide plate 3, the top surface of the light guide plate 3 is a reflective surface, and the bottom surface of the light guide plate 3 It is a light-emitting surface, and the light-emitting surface is provided with a downwardly protruding light guide strip 7, and the light guide plate 3 and the light guide strip 7 are integrally formed by extrusion molding, and the light guide strip 7 is connected with the first side wall The extending direction is parallel to the strip structure, the light guide strip 7 is surrounded by the first side 9, the second side 10 and the third side 11, and the two ends of the third side 11 are connected with the first side 9 respectively. Connected to the second side 10, the light guide strip 7 bends and deflects toward the light-emitting surface, the angle θ between the third side 11 and the light-emitting surface is 113 degrees, and the first side 9 includes a reflective section 92 And a refraction section 91, the reflection section 92 is used to reflect light toward the third side 11 and make the light exit through the third side 11, the refraction section 91 is used to refract light toward the outside, and the refraction section 91 is arranged on the reflection section 92 and the third side 11, the acute angle formed between the reflective section 92 and the light exit surface is greater than the acute angle formed between the refraction section 91 and the light exit surface, and the LED light source 2 is parallel to the side wall of the light guide plate 3 Arranged in strips.

Please refer to Fig. 1, shown in Fig. 4-5, embodiment two of the present invention is:

In this embodiment, the light guide strip is further improved on the basis of the first embodiment, and the angle θ formed by the third side surface 11 and the light-emitting surface is 140 degrees.

Please refer to Figure 1 and Figure 6, the third embodiment of the present invention is:

In this embodiment, the light guide strip is further improved on the basis of the first embodiment, the angle θ between the third side surface 11 and the light-emitting surface is 140 degrees, and the light-reflecting surface of the light guide plate 3 is provided with a laser For marking, a section of light guide strip 7 is provided on the light exit surface of the light guide plate 3 , and no light guide strip 7 is provided on the light exit surface corresponding to the laser dot 8 .

To sum up, in the LED panel light provided by the present invention, the light guide plate and the light guide strip are integrally formed through an extrusion process, and an optically designed textured light guide strip is formed on the surface of the light guide plate according to lighting requirements; The angle between the third side surface and the light-emitting surface can change the angle of the light; it can also change the setting position of the light guide strip on the light guide plate, so that the light guided from the light-emitting surface meets the lighting requirements; the LED light source is relative to the light guide The side wall of the light plate is installed, and the LED light source is arranged in strips, so it can radiate more energy and make the lighting effect better; light enters the light guide plate from one side, passes through the optical texture, forms light at a specific angle, and guides vertically The direction of the texture section of the light board is the general direction of the light. The light emitted by the LED light source passes through the light guide strip to achieve accurate control of the light output angle of the panel light. The combination of focus lighting and flood lighting realizes the multi-angle light emission of one lamp, so as to meet the maximum lighting demand; the light guide strip with strip structure It has better multi-angle lighting ability, which makes the light output effect better; by setting the reflection section and refraction section, the combination of focus lighting and flood lighting is better; laser marking can efficiently convert point light or line light into various A surface light source of this shape has better lighting effect. Arrange the LED panel lights in multiple angles according to the needs, meet the lighting needs, abandon the appearance of messy lights on the ceiling, and improve the cleanliness and aesthetics of the environment; at the same time, make maximum use of the light guide material, the light guide plate, to achieve controllable angles Greater value for light guide materials.

The above is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technologies fields, all of which are equally included in the scope of patent protection of the present invention.

Claims (7)

1. A kind of LED panel light, it is characterized in that: comprise LED light source and light guide plate, described LED light source is arranged with respect to the side wall of light guide plate, the top surface of described light guide plate is reflective surface, the bottom surface of described light guide plate is the light-emitting surface, and the light-emitting surface is provided with a downwardly protruding light guide strip, the light guide strip is surrounded by the first side, the second side and the third side, and the two ends of the third side Connected to the first side and the second side respectively, the light guide strip is bent and deflected toward the side of the light-emitting surface. 2. The LED panel light according to claim 1, characterized in that: the light guide plate and the light guide strip are integrally formed by extrusion molding. 3. The LED panel light according to claim 1, wherein the light guide strip is a strip structure parallel to the direction in which the first side wall extends. 4. The LED panel light according to claim 1, wherein the first side includes a reflection section and a refraction section, and the reflection section is used to reflect light toward the third side and make the light go out through the third side, The refracting section is used for refracting light toward the outside, and the refracting section is arranged between the reflecting section and the third side. 5 . The LED panel light according to claim 4 , wherein the acute angle formed by the reflection section and the light exit surface is larger than the acute angle formed by the refraction section and the light exit surface. 6. The LED panel light according to claim 1, wherein the LED light sources are arranged in strips parallel to one side wall of the light guide plate. 7. The LED panel light according to claim 1, characterized in that: laser dots are provided on the reflective surface of the light guide plate.