CN209843161U - Light diffusion plate with flame retardant function - Google Patents

Abstract

The utility model discloses a light diffusion plate with flame retardant function, through the structural improvement to the light diffusion plate, can assist the lamp house to dispel the heat, including the transparent PC board that is used for fire-retardant, PMMA light diffusion membrane, and cover in the high bright membrane of PET of PMMA light diffusion membrane surface, one side that transparent PC board dorsad is equipped with the heat-conducting layer that is used for assisting the lamp house to dispel the heat; the heat conduction layer is made of a heat conduction silica gel material or a heat conduction metal material.

Description

Light diffusion plate with flame retardant function

Technical Field

The utility model relates to a light diffuser plate especially relates to a light diffuser plate with fire-retardant function.

Background

At present, there is a light box design in the market, in order to save space and reduce thickness, light sources are designed on both sides of a light diffusion plate, and the light diffusion plate absorbs and reflects the light sources on both sides to illuminate advertisements on a panel.

Because the light box inner space of this kind of design is narrow and small, under the illumination of high power, high heat source that generates heat, like LED etc. the inside heat of light box can't in time distribute away, especially places under the open air environment of high temperature when the light box, causes the potential safety hazard easily.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, one of the purposes of the utility model is to provide a light diffusion plate with flame retardant function, through the structural improvement to the light diffusion plate, can assist the lamp house to dispel the heat.

The utility model discloses an one of the purpose adopts following technical scheme to realize: a light diffusion plate with a flame retardant function comprises a transparent PC plate for flame retardance, a PMMA light diffusion film and a PET high-brightness film covering the surface of the PMMA light diffusion film, wherein a heat conduction layer for assisting the heat dissipation of a lamp box is arranged on one side, back to the PMMA light diffusion film, of the transparent PC plate;

the heat conduction layer is made of a heat conduction silica gel material or a heat conduction metal material.

Furthermore, a plurality of heat conduction bulges are laid on one side of the heat conduction layer, which is back to the transparent PC board.

Furthermore, a semicircular concave part is arranged on the surface of each heat conduction bulge.

Furthermore, a plurality of heat conducting strips are laid on one side of the heat conducting layer, which is opposite to the transparent PC board.

Furthermore, each heat conduction strip penetrates through the PMMA light diffusion film and then collides with the PET high-brightness film.

Furthermore, the cross section of each heat conduction strip is of a T-shaped structure.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the heat conducting plate can be used for absorbing heat on the light sources on the two sides and the transparent PC plate or on the front part of the lamp box, and then the heat is dissipated from the back surface of the lamp box, so that the heat dissipation capacity of the lamp box is improved, and the LED lamp box is particularly suitable for the lamp box environment with narrow space.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of the present embodiment.

In the figure: 1. a transparent PC board; 2. a PMMA light diffusion film; 3. a high-brightness PET film; 4. a heat conductive layer; 51. a heat conducting protrusion; 52. a recessed portion; 53. a heat conducting strip.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, a light diffusion plate with a flame retardant function includes a transparent PC plate 1 for flame retardation, a PMMA light diffusion film 2, and a PET highlight film 3 covering the surface of the PMMA light diffusion film 2, a heat conduction layer 4 for assisting heat dissipation of a light box is disposed on a side of the transparent PC plate 1 opposite to the PMMA light diffusion film 2, and is made of a heat conduction silica gel material or a heat conduction metal material, the metal material may be an aluminum alloy, and the like.

In order to further improve the heat dissipation capability of the present embodiment, a plurality of heat conducting protrusions 51 are disposed on the side of the heat conducting layer 4 opposite to the transparent PC board 1, and the heat conducting protrusions 51 are used to increase the contact area between the back of the heat conducting layer 4 and the air or the external environment, so that the heat of the heat conducting layer can be more efficiently transferred to the outside. The same applies to the semicircular concave portions 52 on the surface of each heat-conducting protrusion 51, and of course, the protrusions of the heat-conducting layer 4 can also be used to be embedded with the light box back plate, so that the light box back plate can be used for more efficient heat dissipation, which is not described in detail in this embodiment.

In addition, a plurality of heat conduction strips 53 have been laid in the relative transparent PC board 1 one side of heat-conducting layer 4 to this embodiment, each heat conduction strip 53 all passes PMMA light diffusion membrane 2 (must also pass transparent PC board 1 simultaneously) back conflict PET highlight bright film 3, on the one hand, can absorb PMMA light diffusion membrane 2 and PET highlight bright film 3's heat, reduce the temperature in the anterior space of lamp house as far as possible, on the other hand, each heat conduction strip 53 is the cross section of "T" font structure, can strengthen the laminating firmness between PMMA light diffusion membrane 2 and the transparent PC board 1, the contact area of increase also can be better the absorption PMMA light diffusion membrane 2 and the PET highlight bright film 3 between the heat.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims (6)

1. The utility model provides a light diffuser plate with fire-retardant function, is including being used for fire-retardant transparent PC board, PMMA light diffusion membrane, and cover the high light membrane of PET on PMMA light diffusion membrane surface which characterized in that: one side of the transparent PC board, which is back to the PMMA light diffusion film, is provided with a heat conduction layer for assisting the heat dissipation of the lamp box;

the heat conduction layer is made of a heat conduction silica gel material or a heat conduction metal material.

2. A light diffusion plate having a flame retardant function as claimed in claim 1, wherein: and a plurality of heat conduction bulges are laid on one side of the heat conduction layer back to the transparent PC board.

3. A light diffusion plate having a flame retardant function as claimed in claim 2, wherein: the surface of each heat conduction bulge is provided with a semicircular concave part.

4. A light diffusion plate having a flame retardant function as claimed in claim 3, wherein: and a plurality of heat conduction strips are laid on one side of the heat conduction layer relative to the transparent PC board.

5. A light diffusion plate having a flame retardant function as claimed in claim 4, wherein: and each heat conduction strip penetrates through the PMMA light diffusion film and then abuts against the PET high-brightness film.

6. A light diffusion plate having a flame retardant function as claimed in claim 5, wherein: the cross section of each heat conduction strip is of a T-shaped structure.