CN203309625U

CN203309625U - LED (light emitting diode) panel lamp of blue light source

Info

Publication number: CN203309625U
Application number: CN2013204031989U
Authority: CN
Inventors: 梁光勇
Original assignee: NANNING STONE QIMING OPTOELECTRONICS TECHNOLOGY Co Ltd
Current assignee: NANNING STONE QIMING OPTOELECTRONICS TECHNOLOGY Co Ltd
Priority date: 2013-07-08
Filing date: 2013-07-08
Publication date: 2013-11-27
Anticipated expiration: 2023-07-08

Abstract

The utility model provides an LED (light emitting diode) panel lamp of a blue light source. The LED panel lamp comprises a framework body, wherein a metal back plate is fixedly arranged at the bottom in the framework body; a light guide plate is arranged above the metal back plate; a diffusion plate is arranged above the light guide plate; a yellow fluorescent powder layer is arranged in the diffusion plate; an LED light bar is arranged on the inner side wall of the framework body; a plurality of blue LED chips are arranged on the LED light bar and are positioned on the outer side of the light guide plate; the blue LED chips and the light guide plate are positioned on the same horizontal plane. The LED panel lamp emits light by directly adopting the blue LED chips and excites emitted blue light through the yellow fluorescent powder layer arranged on the diffusion plate to produce white light, thus finishing light diffusion through the diffusion plate and achieving a white light illumination effect. According to the LED panel lamp, the yellow fluorescent powder is prevented from being in direct contact with the LED chips, so that the heat produced by the illumination of the LED chips cannot influence the fluorescent powder, the aging of the fluorescent powder is prevented, and the service life of the LED panel lamp is prolonged.

Description

A kind of LED flat lamp of blue light source

Technical field

The utility model relates to the LED flat lamp, and what be specifically related to is a kind of LED flat lamp of blue light source.

Background technology

It is light source that current LED flat lamp all adopts white light LEDs, and it mainly applies yellow fluorescent powder on the blue-light LED chip surface, makes blue-light excited yellow fluorescent powder produce warm white, positive white light or cold white light, thereby reaches illuminating effect.But this flat lamp is because blue-light LED chip forms and contacts with yellow fluorescent powder, when LED chip is luminous, because being subject to for a long time the impact of LED chip temperature, problem of aging easily appears in the yellow fluorescent powder contacted with LED chip, thereby causes the minimizing in service life of LED flat lamp.

The utility model content

The purpose of this utility model is to provide a kind of LED flat lamp of blue light source, reduces problem in service life caused because fluorescent material is aging that current LED flat lamp in use occurred to solve.

The purpose of this utility model is achieved through the following technical solutions.

A kind of LED flat lamp of blue light source, comprise framework (10), described framework (10) inner bottom part is installed with metal backing (20), described metal backing (20) top is equipped with LGP (40), LGP (40) top is provided with diffuser plate (50), in described diffuser plate (50), is provided with a yellow fluorescence bisque (60); On described framework (10) madial wall, LED lamp bar (11) is installed, is provided with a plurality of blue-light LED chips on described LED lamp bar (11), described blue-light LED chip is positioned at the outside of LGP (40), and is on same level with LGP (40).

Preferably, on described metal backing (20) upper surface, also be pasted with a reflective membrane (30).

Preferably, described LED lamp bar (11) is bonded on framework (10) madial wall.

Preferably, described diffuser plate (50) top also is equipped with a transparent protection plate (70).

Preferably, described framework (10) is one-body molded with metal backing (20).

The utility model compared with prior art, beneficial effect is: the LED flat lamp of the blue light source that the utility model provides, directly adopt blue-light LED chip luminous, and by the yellow fluorescence bisque be arranged on diffuser plate, the blue light sent is excited, to produce white light, thereby by diffuser plate, complete the diffusion of light, reach the effect of white-light illuminating.The utility model has avoided yellow fluorescent powder directly with LED chip, to contact, and the heat while making LED chip luminous can't impact fluorescent material, has prevented the aging of fluorescent material, has improved the service life of LED flat lamp.

The accompanying drawing explanation

Fig. 1 is the structural representation of the LED flat lamp of the utility model blue light source.

Identifier declaration in figure: framework 10, LED lamp bar 11, metal backing 20, reflective membrane 30, LGP 40, diffuser plate 50, yellow fluorescence bisque 60, transparent protection plate 70.

The specific embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.

Refer to shown in Figure 1ly, Fig. 1 is the structural representation of the LED flat lamp of the utility model blue light source.The utility model provides a kind of LED flat lamp of blue light source, and it directly contacts luminous with LED chip mainly for fluorescent material in light source in current LED flat lamp, easily cause fluorescent material aging, causes the problem of LED flat lamp shortening in service life.

The utility model LED flat lamp is for above-mentioned shortcoming, yellow fluorescent powder is separated with blue-light LED chip, make blue-light LED chip directly send blue light, through after reflective, leaded light, being excited by yellow fluorescent powder, preferably produce white light and launch by diffuser plate, the formation white light, this structure had both guaranteed luminous efficiency and effect, avoid again yellow fluorescent powder directly with blue-light LED chip, to contact, prevented that it is aging, increased the service life of whole product.

The utility model LED flat lamp includes: framework 10, described framework 10 inside are installed with metal backing 20, LGP 40, diffuser plate 50 and transparent protection plate 70 from lower to upper successively.Framework 10 is the metal rectangular framework, it has good hot performance, and sidewall is bonded with LED lamp bar 11 within it, and on described LED lamp bar 11, uniform welding has a plurality of blue-light LED chips, and these blue-light LED chip correspondences are positioned at the outside of LGP 40, and be in same plane with LGP 40.

Metal backing 20 adopts the good aluminium sheet of heat dispersion to make, and it can be one-body molded with above-mentioned framework 10, also can assemble and be stitched together.Upper surface at metal backing 20 is pasted with one deck reflective membrane 30,, when luminous light is reflected away by reflective membrane 30 with realization.

LGP 40 is positioned at reflective membrane 30 tops of metal backing 20, and its outside is around there being a circle blue-light LED chip, and it adopts the good acrylic board of light transmission to make, the blue light of look is produced in side, light-permeable LGP 40, and after the reflection of its bottom reflective membrane 30, to diffuser plate 70 outgoing.

Diffuser plate 70 is positioned at the top of LGP 40, it is mainly used in after the diffusion of the light from LGP 40, penetrating, improvements of the present utility model are to be formed with one deck yellow fluorescence bisque 60 in diffuser plate 70, certainly it also can make an integral body by yellow fluorescent powder and diffuser plate 70, also yellow fluorescence bisque 60 can be formed on the upper surface or lower surface of diffuser plate 70, here the Main Function of yellow fluorescence bisque 60 is to make blue-light excited generation white light, and by the rear ejaculation of diffuser plate 70, to form good illuminating effect.

In addition; one transparent protection plate 70 also is installed above diffuser plate 50; by above-mentioned framework 10, transparent protection plate 70, diffuser plate 50, LGP 40 and metal backing 20 tightly can be fixed together; and LED lamp bar 11 also correspondence is fixed in framework 10; utilize framework 10 can realize the heat conduction that it is good, the impact of effectively having avoided heat to produce fluorescent material.

In sum, the utility model, except the energy-saving and environmental protection texts with LED flat lamp, in the service life of also greatly having improved current LED flat lamp, has effectively been eliminated dazzle, has improved uniformity of light.

The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.

Claims

1. the LED flat lamp of a blue light source, it is characterized in that, comprise framework (10), described framework (10) inner bottom part is installed with metal backing (20), described metal backing (20) top is equipped with LGP (40), LGP (40) top is provided with diffuser plate (50), in described diffuser plate (50), is provided with a yellow fluorescence bisque (60); On described framework (10) madial wall, LED lamp bar (11) is installed, is provided with a plurality of blue-light LED chips on described LED lamp bar (11), described blue-light LED chip is positioned at the outside of LGP (40), and is on same level with LGP (40).

2. the LED flat lamp of blue light source according to claim 1, is characterized in that, also is pasted with a reflective membrane (30) on described metal backing (20) upper surface.

3. the LED flat lamp of blue light source according to claim 1, is characterized in that, described LED lamp bar (11) is bonded on framework (10) madial wall.

4. the LED flat lamp of blue light source according to claim 1, is characterized in that, described diffuser plate (50) top also is equipped with a transparent protection plate (70).

5. the LED flat lamp of blue light source according to claim 1, is characterized in that, described framework (10) is one-body molded with metal backing (20).