CN213630054U - Novel panel light capable of emitting light uniformly - Google Patents

Abstract

The invention discloses a novel panel lamp with uniform light emission, which belongs to a lighting device and comprises a bottom shell, wherein the bottom shell comprises a quadrangular bottom plate and four side plates respectively connected with four edges of the bottom plate, the four side plates are fixedly provided with a PCB (printed Circuit Board), a light source and a lens, the inner side of the bottom shell is also provided with a backlight plate, and the side plates of the bottom shell are also provided with a diffusion plate parallel to the backlight plate; the light source on the curb plate sends out the light, and partial light directly shines on the diffuser plate, and partial light shines earlier on the board that is shaded, shines on the diffuser plate after reflecting on the board that is shaded, and its ability that light diverges is irrelevant with the thickness of panel light, has solved prior art, and when panel light thickness is less, luminous inhomogeneous problem.

Description

Novel panel light capable of emitting light uniformly

Technical Field

The utility model relates to a lighting device especially relates to a luminous even novel panel light.

Background

The panel lamp is a common lighting appliance at present, and because the luminous surface is large, the emitted light is softer, the panel lamp gradually replaces the prior bulb; for the panel light, how to improve the uniformity of the light emitted from the light-emitting surface is the key to improve the quality of the light, the light-emitting mode of the general panel light is direct type, the light source is arranged at the bottom of the panel light, the light is diffused by the diffusion plate completely, the uniformity of the light-emitting surface on the panel is not good, and especially when the thickness of the panel light is small, the path through which the light emitted by the light source passes is short, and the light is more difficult to diffuse.

For example, the "panel lamp and the lighting device including the same" disclosed in the chinese patent document, which is referred to as CN204986552U, includes a diffusion plate and an optical module, and has disadvantages in that the optical module directly emits light through the diffusion plate, so that uniformity of light emission on the panel lamp is not good enough, and spots are easily generated on the panel, thereby resulting in poor appearance.

Disclosure of Invention

The utility model relates to an overcome prior art, the light source direct irradiation of panel light shines on the diffuser plate and gives out light, leads to when the whole thickness of panel light is less, and the problem that the homogeneity of panel glazing is not good enough provides a luminous even novel panel light, can make the panel light luminous more even to improve the aesthetic property of panel light.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model discloses a novel panel lamp with uniform light emission, which comprises a bottom shell, wherein the bottom shell comprises a quadrangular bottom plate and four side plates respectively connected with four edges of the bottom plate, the four side plates are all fixedly provided with a PCB (printed Circuit Board), a light source and a lens, the inner side of the bottom shell is also provided with a backlight plate, and the side plates of the bottom shell are also provided with a diffusion plate parallel to the backlight plate; and an outer frame is also arranged on the outer side of the bottom shell.

In this scheme, the light source on the curb plate sends out the light, and partial light directly shines on the diffuser plate, and partial light shines earlier on the board that is shaded, shines on the diffuser plate after reflecting on the board that is shaded, and its light ability of dispersing is irrelevant with the thickness of panel light, and when the thickness of panel light is less, the light that the light source sent also can shine everywhere of diffuser plate to improve the luminous homogeneity of panel light.

Preferably, a backlight area is arranged on the backlight plate, a plurality of bumps are arranged on the backlight area, and ink dots for performing diffuse reflection on light are coated on the bumps; the printing ink mesh points can perform diffuse reflection on light rays irradiated on the bumps, so that light spots or light stripes can be prevented from being formed on the panel lamp.

Preferably, the four side plates are respectively a first side plate, a second side plate, a third side plate and a fourth side plate which are adjacent in sequence, the backlight area comprises a middle backlight area positioned in the middle of the backlight plate and a first backlight area, a second backlight area, a third backlight area and a fourth backlight area which are positioned around the middle backlight area, and the upper side surfaces of the convex blocks on the first backlight area, the second backlight area, the third backlight area and the fourth backlight area are inclined planes which incline towards the middle backlight area; in some specific places, the light of different colours often need to be used, and panel light includes four curb plates in this scheme, can send the light source of different colours through setting up on four curb plates, can realize this demand, and because light is behind certain route, its intensity can weaken gradually, consequently when only a curb plate is luminous, the more distant department light of luminous curb plate of distance is darker on the panel light, thereby lead to panel light shade uneven, and this kind of condition can be avoided to the structure in this scheme: through the inclined plane, the projection at the position closer to the light-emitting side plate can reflect light less, and the projection at the position farther from the light-emitting side plate can reflect light more, so that the panel lamp can emit light more uniformly.

Preferably, the backlight area comprises a backlight inner area and a backlight outer area, the backlight inner area is closer to the backlight area in the middle relative to the backlight outer area, and the degree of an included angle between the upper side surface of the bump in the backlight inner area and the bottom of the backlight plate is smaller than the degree of an included angle between the upper side surface of the bump in the backlight outer area and the bottom of the backlight plate; the light reflection amount can be further distinguished by the backlight inner area and the backlight outer area, and the reflection amount is larger because the inclination angle of the backlight outer area is larger, so that the uniformity of light emission on the panel is further improved.

Preferably, one surface of the lens, which is close to the light source, is a light inlet surface, and the other surface of the lens is a light outlet surface, and a plurality of V-shaped grooves are formed in the light outlet surface; since the light source is located at the side of the diffusion plate, the light emitted from the direction parallel to the diffusion plate cannot be emitted through the diffusion plate, and is only reflected continuously inside the panel lamp, so that the proportion of the electrical energy of the panel lamp converted into the thermal energy is increased, the proportion of the electrical energy converted into the optical energy is reduced, and the energy loss is increased.

Preferably, the thickness of the lens is gradually increased from the part close to the diffusion plate to the part close to the backlight plate; through the structure in this scheme can make light after the refraction of lens, the volume that jets out towards the board in a poor light increases, and the volume that jets out towards the diffuser plate reduces to make light arrive the diffuser plate after the diffuse reflection of printing ink site as far as possible earlier, rather than directly jetting out from the diffuser plate, thereby improve luminous homogeneity.

Preferably, the light source includes a main light source and a sub-light source; the main light source and the auxiliary light source can enable the panel lamp to adjust brightness.

Therefore, the utility model discloses following beneficial effect has: (1) the uniformity of the light emission of the panel lamp can be improved, so that the panel lamp is more attractive; (2) the adjustment of the color and brightness of the light can be realized by mounting light sources of different colors on the side plates, and the uniformity can be still ensured when only one side plate emits light.

Drawings

Fig. 1 is a schematic diagram of an explosive structure of the present invention.

Fig. 2 is a schematic view of an internal top view structure of the present invention.

Fig. 3 is a schematic diagram of an internal side view structure of the present invention.

Fig. 4 is a schematic view of a partial structure at a light source and a lens according to an embodiment of the present invention.

Fig. 5 is a schematic view of a partial structure of a second embodiment of the present invention at a light source and a lens.

In the figure: 1. bottom shell 11, bottom plate 12, side plate 121, first side plate 122, second side plate 123, third side plate 124, fourth side plate 2, PCB 3, light source 31, main light source 32, sub-light source 4, lens 41, light inlet surface 42, light outlet surface 5, backlight plate 6, diffusion plate 7, outer frame 81, middle backlight area 82, first backlight area 83, second backlight area 84, third backlight area 85, fourth backlight area 86, backlight inner area 87, backlight outer area 9, bump 10 and V-shaped groove.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

Embodiment one, as shown in fig. 1-4: a novel panel lamp with uniform light emission comprises a bottom shell 1, wherein the bottom shell comprises a square bottom plate 11 and four side plates 12 connected with four edges of the bottom plate respectively, the four side plates are a first side plate 121, a second side plate 122, a third side plate 123 and a fourth side plate 124 which are adjacent in sequence respectively, a PCB (printed circuit board) plate 2, a light source 3 and a lens 4 are fixedly mounted on each of the four side plates, light sources on the four side plates comprise a main light source 31 and an auxiliary light source 32, the colors of light emitted by the main light sources on the four side plates are red, yellow, blue and white respectively, the colors of light emitted by the four auxiliary light sources are white, a backlight plate 5 is further arranged on the inner side of the bottom shell, and a diffusion plate 6 parallel to the backlight plate is further mounted on each side plate of the bottom shell; an outer frame 7 is further mounted on the outer side of the bottom shell; the backlight module comprises a backlight plate, wherein a backlight area is arranged on the backlight plate, a plurality of bumps 9 are arranged on the backlight area, ink dots for diffuse reflection of light are coated on the bumps, the backlight area comprises a middle backlight area 81 positioned in the middle of the backlight plate, and a first backlight area 82, a second backlight area 83, a third backlight area 84 and a fourth backlight area 85 which are positioned on the periphery of the middle backlight area, the middle backlight area is a square area, the first backlight area, the second backlight area, the third backlight area and the fourth backlight area are sequentially adjacent isosceles trapezoid areas, the first backlight area is positioned between the middle backlight area and a first side plate, the second backlight area is positioned between the middle backlight area and a second side plate, the third backlight area is positioned between the middle backlight area and a third side plate, the fourth backlight area is positioned between the middle backlight area and a fourth side plate, and the first backlight area, The upper side surfaces of the convex blocks on the second backlight area, the third backlight area and the fourth backlight area are inclined planes which incline towards the middle backlight area, and the upper side surfaces of the convex blocks on the middle backlight area are parallel to the bottom of the backlight area; the backlight area comprises a backlight inner area 86 and a backlight outer area 87, the backlight inner area is closer to the backlight outer area relative to the backlight outer area than the middle backlight area, the included angle between the upper side surface of the lug in the backlight inner area and the bottom of the backlight plate is smaller than the included angle between the upper side surface of the lug in the backlight outer area and the bottom of the backlight plate, specifically, the included angle between the upper side surface of the lug in the backlight inner area and the bottom of the backlight plate is 10 degrees, and the included angle between the upper side surface of the lug in the backlight outer area and the bottom of the backlight plate is 20 degrees; one surface of the lens close to the light source is a light inlet surface 41, the other surface of the lens is a light outlet surface 42, the light inlet surface is a plane and is vertical to the bottom surface of the backlight plate, and a plurality of V-shaped grooves 10 are arranged on the light outlet surface.

When the panel lamp is used, the light source emits light rays, the light rays are emitted to the backlight plate and the diffusion plate through the lens, and the light rays originally parallel to the diffusion plate are not parallel to the diffusion plate any more due to the fact that the incident angle is smaller than the refraction angle when the light rays are emitted from the lens, so that energy loss is reduced; the light emitted to the diffusion plate directly makes the panel lamp emit light, and the light emitted to the backlight plate is diffused and reflected on the printing ink dots and then emitted to the diffusion plate; the switch of the light source can be controlled through the PCB, and the brightness of the panel lamp can be controlled by controlling the number of the light sources to be turned on.

When the panel light needs to be adjusted to be colored light, only the main light source is turned on, but the auxiliary light source is not turned on, the color of the panel light can be adjusted by turning on the light sources on different side plates, for example, only the main light source on the first side plate is turned on, the panel light can be red, and the main light sources on the first side plate and the second side plate are turned on simultaneously, and the panel light can be orange under the superposition of red light and yellow light; when only the light source on one side is turned on, the reflection amount of the light on different backlight areas is different, for example, only the light source on the first side plate is turned on, the light is emitted to the backlight area from the first side plate, and the included angle between the upper side surface of the bump on the first backlight area and the light is too small, so that the light is hardly reflected at the first backlight area, and at the third backlight area, the light is more easily reflected at the third backlight area because the included angle between the upper side surface of the bump and the light is larger, and the light emitted at the second backlight area and the fourth backlight area is between the two, and the bump also located in the third backlight area is also located, because the included angle degree between the upper side surface of the bump in the backlight inner area and the bottom of the backlight area is smaller than the included angle degree between the upper side surface of the bump in the backlight outer area and the bottom of the backlight area, the reflection redundant reflection occurring at the backlight outer area in the third backlight area is enabled to be reflected, therefore, the condition that the light reflected is more at a distance from the light-emitting side plate and less at a distance from the light-emitting side plate is formed, the problem that the light directly emitted out of the diffusion plate is less at a distance from the light-emitting side plate is solved, and the light emission is more uniform.

Second embodiment, as shown in fig. 5, a novel panel light with uniform light emission is different from the first embodiment only in that: the light inlet surface and the light outlet surface of the lens are flat surfaces, the thickness of the part of the lens from the part close to the diffusion plate to the part close to the backlight plate is gradually increased, so that light originally parallel to the diffusion plate is emitted from the lens, the backlight plate can be deviated, most of light is emitted to the diffusion plate after the diffuse reflection of printing ink dots, the light is not directly emitted from the diffusion plate, and the light is more uniform in light emission.

Claims (7)

1. The utility model provides a luminous even novel panel light, characterized by, includes the drain pan, the drain pan includes tetragonal bottom plate and four curb plates of being connected with four limits of bottom plate respectively, four curb plates on equal fixed mounting have PCB board, light source, lens, the inboard of drain pan still is equipped with the board in a poor light, still install on the curb plate of drain pan with the parallel diffuser plate of board in a poor light.

2. The novel panel lamp of claim 1, wherein the backlight plate has a backlight area, the backlight area has a plurality of bumps, and the bumps are coated with ink dots for diffuse reflection of light.

3. The novel panel lamp with uniform light emission as claimed in claim 2, wherein the four side plates are respectively a first side plate, a second side plate, a third side plate and a fourth side plate which are adjacent to each other in sequence, the backlight area comprises a middle backlight area located in the middle of the backlight plate and a first backlight area, a second backlight area, a third backlight area and a fourth backlight area located around the middle backlight area, and upper sides of the bumps in the first backlight area, the second backlight area, the third backlight area and the fourth backlight area are inclined planes inclined towards the middle backlight area.

4. The novel panel lamp with uniform light emission as claimed in claim 3, wherein the backlight area comprises a backlight inner area and a backlight outer area, the backlight inner area is closer to the backlight outer area than the backlight outer area, and the included angle between the upper side of the bump in the backlight inner area and the bottom of the backlight plate is smaller than the included angle between the upper side of the bump in the backlight outer area and the bottom of the backlight plate.

5. The novel panel lamp with uniform light emission as claimed in claim 1, wherein one surface of the lens close to the light source is a light inlet surface, the other surface is a light outlet surface, and the light outlet surface is provided with a plurality of V-shaped grooves.

6. The novel panel lamp of claim 1, wherein the thickness of the lens gradually increases from the portion near the diffuser plate to the portion near the backlight plate.

7. The novel panel lamp of any one of claims 1-6, wherein the light source comprises a primary light source and a secondary light source.

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