CN202274312U

CN202274312U - Ultrathin LED panel lamp

Info

Publication number: CN202274312U
Application number: CN2011203635465U
Authority: CN
Inventors: 岑家雄; 岑振云
Original assignee: SHENZHEN SHENHUALONG TECHNOLOGY Co Ltd
Current assignee: SHENZHEN SHENHUALONG TECHNOLOGY Co Ltd
Priority date: 2011-09-26
Filing date: 2011-09-26
Publication date: 2012-06-13
Anticipated expiration: 2021-09-26

Abstract

The utility model relates to an ultrathin LED panel lamp, which includes a framework, a diffusion plate, a light guide plate, a piece of light reflecting paper, a rear cover, a PCBA plate, and an LED light source. The PCBA plate equipped with the LED light source is adhered to an inner side edge of the framework; the diffusion plate is flatly placed in the framework; the light guide plate, the light reflecting paper and the rear cover are sequentially arranged on the diffusion plate; the rear cover is fixedly connected with the framework; one end edge of the light reflecting paper, which corresponds to the LED light source, extends to the PCBA plate; light reflecting paper side edges are arranged on other end edges of the light reflecting paper and are adhered onto corresponding side surfaces of the light guide plate. In the utility model, the light reflecting paper is lengthened to the PCBA plate for sealing light; the side edges of the light reflecting paper are tightly adhered to the side surfaces of the light guide plate, so that the utilization rate of the light source can be greatly improved; and compared with the prior art in the same test environment, the luminous flux is increased by 10%, the luminous efficacy is improved, and the luminous loss is reduced.

Description

A kind of ultra-thin LED flat lamp

Technical field

The utility model relates to field of light fittings, is specifically related to a kind of ultra-thin LED flat lamp that improves the light source utilization rate, reduces the light loss consumption.

Background technology

General along with the LED product, it is luminous evenly for ultra-thin flat lamp, free from glare, energy-conservation fineness, has obtained a lot of clients' approval; But general along with product, people require increasingly high to it, because ultra-thin flat lamp is a lateral emitting; Reflective sheeting by enclosing with the equal size of LGP reflects light; Get through diffuser plate, when the light of LED lamp radiate with 60 degree angles usually, LGP had received only most light again; The light of remainder is divided into many parts, as: a part has been reflected when getting into LGP; Refraction through LGP distributes a part from the gap of LGP and PCBA plate; Do not reveal away a part through establishing the corresponding LGP side surface direction of PCBA plate; Light penetrates reflective sheeting and is retained in a part in the lamp body; Also some light energy then is converted into heat energy by each absorbed of lamp body.

To sum up, the light loss of existing LED flat lamp is serious, and the luminous flux of derivation is merely about 60% of primary source, and light is remained in the lamp body greatly, is absorbed by each parts.Therefore ultra-thin flat lamp need reach very difficulty of high bright high light efficiency, and some manufacturers add high-powerly to reach purpose for the life-span of improving the stint no sacrifice LED of brightness, make that the LED light decay is serious.

The utility model content

To the deficiency of prior art, the purpose of the utility model is intended to provide a kind of ultra-thin LED flat lamp that improves the light source utilization rate, reduces the light loss consumption.

For realizing above-mentioned purpose, the utility model adopts following technical scheme:

A kind of ultra-thin LED flat lamp; Comprise framework, diffuser plate, LGP, reflective sheeting, bonnet, PCBA plate, led light source; The PCBA plate that led light source is installed is attached on the framework inner side edge, and diffuser plate lies in the framework, is provided with LGP, reflective sheeting, bonnet on the diffuser plate successively; Bonnet also is connected with frame fixation; The corresponding end of said reflective sheeting and led light source limit extends on the PCBA plate, and all the other end limits of reflective sheeting are provided with the reflective sheeting side, and said reflective sheeting side sticks on the corresponding LGP side.

Preferably, the height of said reflective sheeting side is identical with the height of LGP side.

A kind of ultra-thin LED flat lamp that the utility model is set forth, compared with prior art, its beneficial effect is: the utility model adds to grow on the PCBA plate through reflective sheeting and the corresponding end of led light source limit and seals light; Make LED squeeze into the reverberation of LGP and the surplus light on the LED angle is utilized again; The reflective sheeting side that all the other end limits of reflective sheeting are provided with is close to corresponding LGP side and is located to make the seamless bright dipping in this side, and light is reflected away the light that reflects by LGP through the reflection of reflective sheeting side again; Utilization rate improves greatly; With prior art test light flux in same test environment, can increase 10% luminous flux, light efficiency promotes to some extent; Make light to be utilized effectively, reduce the wastage.

Description of drawings

Accompanying drawing 1 is the STRUCTURE DECOMPOSITION sketch map of the utility model ultra-thin LED flat lamp preferred embodiment;

Accompanying drawing 2 is that the A of Fig. 1 is to sketch map;

Accompanying drawing 3 is that the B-B of Fig. 2 is to sketch map;

Accompanying drawing 4 is the D district enlarged diagram of Fig. 3;

Accompanying drawing 5 is that the C-C of Fig. 2 is to sketch map;

Accompanying drawing 6 is the E district enlarged diagram of Fig. 5.

Wherein: 1, framework; 2, diffuser plate; 3, LGP; 4, reflective sheeting; 5, bonnet; 6, PCBA plate.

The specific embodiment

Below, in conjunction with the accompanying drawing and the specific embodiment, the ultra-thin LED flat lamp of the utility model done further describing, so that clearerly understand the utility model technological thought required for protection.

Shown in Fig. 1 ~ 6; A kind of ultra-thin LED flat lamp; Comprise framework 1, diffuser plate 2, LGP 3, reflective sheeting 4, bonnet 5, PCBA plate 6, led light source 7, the PCBA plate 6 that led light source 7 is installed is attached on framework 1 inner side edge through the heat conduction rubber cushion, and diffuser plate 2 lies in the framework 1; LGP 3 is close on the diffuser plate 2; Reflective sheeting 4 is attached to above the LGP 3, and bonnet 5 plates are placed on LGP 3 top edges and are connected with framework 1 usefulness screw, for increasing luminous flux; Improve the utilization ratio of light source; Extend on the PCBA plate 6 on reflective sheeting 4 and led light source 7 corresponding end limits, the light that stops gap light leak between PCBA plate 6 and LGP 3 incident end faces (on the LGP and led light source opposing end faces be incident end face) and LGP incident end face to reflect away is revealed, and reflective sheeting 4 remains other and respectively holds limit (be reflective sheeting not with led light source 7 corresponding end limits) to be equipped with the reflective sheeting side; The reflective sheeting side all sticks on the side of its corresponding LGP, can effectively prevent the generation of this side light leak of LGP.In the utility model preferred embodiment; Adopt on the relative upper and lower inner side edge of framework 1 and respectively be provided with a PCBA plate 6; The upper and lower end limit of reflective sheeting all extends on the PCBA plate at each self-corresponding led light source place; Led light source is covered in it, and the limit, left and right two ends of reflective sheeting respectively is provided with a reflective sheeting side, and the reflective sheeting side sticks on its corresponding LGP side.Certainly; The PCBA plate also can be one or three or four; Led light source 7 evenly is installed on each PCBA plate 6; Extend on the PCBA plate as long as guarantee reflective sheeting and the corresponding end of led light source limit, reflective sheeting remains other and respectively holds the limit to be equipped with the reflective sheeting side all to stick on the side of its corresponding LGP and get final product.

The operation principle of the utility model ultra-thin LED flat lamp is following:

When PCBA plate 6 connects driving LED light source 7 when luminous; Through LGP 3 light is reflected; The light that reflects carries out diffuse reflection through diffuser plate 2 with light again; Make light soft evenly, the reflective sheeting 4 on the LGP 3 reflects the surplus light in the LGP rear portion again, utilizes once more and reflects back when reflective sheeting 4 diffuses into the light that 6 top last time of PCBA plate can reflect LGP 3 and the light that from the gap of LGP 3 incident end faces and PCBA plate 6, distributes; When on LGP 3 is not the side of incident end face, pasting the reflective sheeting side; The light that light is revealed away through the side that PCBA plate 6 corresponding LGPs 3 the are not set utilization that also will be reflected once more, the effective rate of utilization that this will improve light makes the integral light flux improve 10%.

For a person skilled in the art, can make other various corresponding changes and distortion, and these all changes and distortion should belong within the protection domain of the utility model claim all according to the technical scheme and the design of above description.

Claims

1. ultra-thin LED flat lamp; Comprise framework, diffuser plate, LGP, reflective sheeting, bonnet, PCBA plate, led light source, the PCBA plate that led light source is installed is attached on the framework inner side edge, and diffuser plate lies in the framework; Be provided with LGP, reflective sheeting, bonnet on the diffuser plate successively; Bonnet also is connected with frame fixation, it is characterized in that the corresponding end of said reflective sheeting and led light source limit extends on the PCBA plate; All the other end limits of reflective sheeting are equipped with the reflective sheeting side, and said reflective sheeting side sticks on the corresponding LGP side.

2. ultra-thin LED flat lamp according to claim 1 is characterized in that, the height of said reflective sheeting side is identical with the height of LGP side.