CN219496712U - Diffuse reflection's light guide plate - Google Patents

Abstract

The utility model provides a diffuse reflection light guide plate which comprises a side cover, a main body frame, a rear cover, a reflecting plate and a diffusion plate, wherein the rear cover, the reflecting plate and the diffusion plate are sequentially arranged in the main body frame. The utility model discloses set up first light guide substrate and second light guide substrate and carry out the light guide to set up highly non-uniform diffuse reflection arch at the surface of first light guide substrate, it extends to both sides slope to use the middle part as the benchmark with the second light guide substrate simultaneously, make first LED lamp strip and second LED lamp strip to the holistic incident area increase of light guide plate, and then make more light sources get into inside the light guide plate and carry out diffuse reflection diffusion through diffuse reflection arch, even illumination is to the diffuser plate on, carry out secondary diffusion with the light that receives on the diffuser plate, with reaching the even purpose of light source, overall structure is simple, machining precision to first light guide substrate and second light guide substrate is not high, the processing cost of light guide plate has been reduced.

Description

Diffuse reflection's light guide plate

Technical Field

The utility model relates to the technical field of light guide plates, in particular to a diffuse reflection light guide plate.

Background

The light guide plate is formed by printing light guide points on the bottom surface of an optical acrylic plate by using a high-tech material with extremely high refractive index and light absorption resistance through laser engraving, V-shaped cross grid engraving and UV screen printing technology;

the utility model provides a diffuse reflection LED flat lamp of publication number "CN204345370U", including back lid, reflecting plate, light guide plate, diffuser plate, LED light source and frame, the LED light source is rectangular form and connects the inner wall at the frame, and back lid, reflecting plate, light guide plate and diffuser plate inlay in the frame and arrange in proper order. The device transmits light rays on the light guide plate out of the light guide plate through the diffuse reflection protrusions, performs primary diffuse reflection and diffusion, uniformly irradiates the diffusion plate, and performs secondary diffusion on the received light rays by utilizing the diffuse reflection protrusions on the diffusion plate, so that the whole light rays of the LED flat lamp are more uniform;

however, the technical scheme still has the following problems in the implementation process:

1. according to the technical scheme, the purpose of uniform light source is achieved through the diffuse reflection protrusions arranged in the double layers, but the cost of the double-layer structure is high, and secondly, the diffuse reflection protrusions on the light guide plate and the diffuse reflection protrusions on the diffusion plate are staggered, so that the requirements on the precision of the light guide plate and the diffusion plate are high during processing, and the processing cost of the light guide plate is improved;

2. this technical scheme inlays back lid, reflecting plate, light guide plate and diffuser plate in the frame, needs to open whole when changing the subassembly in opposite side frame, and the operation process is comparatively loaded down with trivial details, only protects the whole when using through the back lid moreover, and the effect of protection is not good.

Disclosure of Invention

The present utility model is directed to a light guide plate with diffuse reflection, so as to solve the problems set forth in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a light guide plate of diffuse reflection, includes side cap, main body frame, back lid, reflecting plate and diffuser plate are installed in proper order in main body frame's inside, first holding tank has been seted up to main body frame's inner wall, the side of back lid, reflecting plate and diffuser plate all block in the inside of first holding tank, the side cap is installed in main body frame's surface, the second holding tank has all been seted up to side cap and main body frame's inner wall, two sets of the inside block of second holding tank has first LED lamp strip and second LED lamp strip respectively, and first LED lamp strip and second LED lamp strip set up relatively, be provided with the diffuse reflection light guide assembly that is used for making the light source evenly divergent between reflecting plate and the diffuser plate.

Preferably, the diffuse reflection light guide assembly is set to the light guide plate, the light guide plate comprises first light guide substrate, second light guide substrate and diffuse reflection arch, the surface of first light guide substrate is provided with the diffuse reflection arch, the diffuse reflection arch is array distribution, and the bellied height of diffuse reflection increases gradually from the both sides of first light guide substrate to the centre, the second light guide substrate sets up to cover in the bellied surface of diffuse reflection, and the second light guide substrate uses middle part as the benchmark to extend to both sides slope.

Preferably, the bottom integrated into one piece of second leaded light base plate has the location card limit, the constant head tank with location card limit assorted is seted up on the surface of first leaded light base plate, location card limit block is in the inside of constant head tank.

Preferably, the bottom of the diffusion plate is provided with a chute matched with the top of the second light guide substrate, the diffusion plate covers the surface of the second light guide substrate, and the first light guide substrate covers the surface of the reflecting plate.

Preferably, a connecting component is arranged between the side cover and the main body frame, the connecting component comprises a connecting groove, clamping claws and a lock tongue, the lock tongue is integrally formed on the surface of the side cover, the connecting groove matched with the lock tongue is formed on the surface of the main body frame, the clamping claws are integrally formed on the surface of the lock tongue and the inner wall of the connecting groove, and the lock tongue is spliced and clamped in the connecting groove through the two groups of clamping claws.

Preferably, the surface integrated into one piece of side cap has the gag lever post, the surface of main body frame has seted up the spacing hole with gag lever post assorted, the gag lever post peg graft in the inside in spacing hole.

Preferably, the rear cover comprises a bottom plate, a reinforcing layer, an anti-static layer and an anti-static layer, wherein the reinforcing layer covers the surface of the bottom plate, the anti-static layer covers the surface of the reinforcing layer, the anti-static layer covers the surface of the anti-static layer, the reflecting plate covers the surface of the anti-static layer, the reinforcing layer is a PC (personal computer) plate, the anti-static layer is a PE (polyethylene) film, and the anti-static layer is a PC plate sprayed with an anti-static material.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model discloses set up first light guide substrate and second light guide substrate and carry out the light guide to set up highly different diffuse reflection arch at the surface of first light guide substrate, it extends to both sides slope to use the middle part to use the second light guide substrate as the benchmark simultaneously, make first LED lamp strip and second LED lamp strip to the holistic incident area increase of light guide plate, and then make more light sources get into the light guide plate inside and carry out diffuse reflection diffusion through diffuse reflection arch, evenly shine to the diffuser plate on, carry out the secondary diffusion with the light that receives on the diffuser plate again, with the even purpose of reaching the light source, overall structure is simple, machining precision to first light guide substrate and second light guide substrate is not high, the processing cost of light guide plate has been reduced.

2. The utility model discloses set up coupling assembling between side cap and main body frame, can realize the detachable connection structure between side cap and the main body frame through coupling assembling's setting, and then be convenient for open each part of side cap to back lid, reflecting plate, diffuser plate and light guide plate and change, back lid includes bottom plate, enhancement layer, anticorrosive coating and antistatic backing moreover, can play anticorrosive, antistatic effect, holistic mechanical strength is higher moreover, can bring higher protective properties to light guide plate and main body frame.

Drawings

FIG. 1 is a schematic diagram of an explosive structure of the present utility model;

FIG. 2 is a schematic diagram of a main structure of a light guide plate according to the present utility model;

FIG. 3 is an enlarged schematic view of the area A of FIG. 2 according to the present utility model;

fig. 4 is a schematic view of the internal structure of the rear cover of the present utility model.

In the figure: 1. a side cover; 2. the first LED lamp strip; 3. a first accommodation groove; 4. a rear cover; 5. a reflection plate; 6. a light guide plate; 7. a diffusion plate; 8. the second LED lamp strip; 9. a second accommodation groove; 10. a main body frame; 11. a first light guide substrate; 12. a positioning groove; 13. positioning the clamping edge; 14. a second light guide substrate; 15. diffuse reflection convex; 16. a limit rod; 17. a limiting hole; 18. a connecting groove; 19. a claw; 20. a bolt; 21. a bottom plate; 22. a reinforcing layer; 23. an anti-corrosion layer; 24. an antistatic layer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution:

a diffusely reflecting light guide plate comprises a side cover 1, a main body frame 10, a rear cover 4, a reflecting plate 5 and a diffusion plate 7;

the rear cover 4, the reflecting plate 5 and the diffusion plate 7 are sequentially installed in the main body frame 10, the first accommodating groove 3 is formed in the inner wall of the main body frame 10, the side faces of the rear cover 4, the reflecting plate 5 and the diffusion plate 7 are clamped in the first accommodating groove 3, the side cover 1 is installed on the surface of the main body frame 10, the second accommodating grooves 9 are formed in the inner walls of the side cover 1 and the main body frame 10, the first LED lamp strips 2 and the second LED lamp strips 8 are respectively clamped in the two groups of second accommodating grooves 9, the first LED lamp strips 2 and the second LED lamp strips 8 are oppositely arranged, and a diffuse reflection light guide assembly for uniformly dispersing a light source is arranged between the reflecting plate 5 and the diffusion plate 7;

as an optimization scheme of the utility model, the diffuse reflection light guide assembly is arranged as the light guide plate 6, the light guide plate 6 consists of a first light guide substrate 11, a second light guide substrate 14 and diffuse reflection bulges 15, the diffuse reflection bulges 15 are arranged on the surface of the first light guide substrate 11, the diffuse reflection bulges 15 are distributed in an array, the heights of the diffuse reflection bulges 15 are gradually increased from two sides of the first light guide substrate 11 to the middle, the second light guide substrate 14 is arranged to cover the surface of the diffuse reflection bulges 15, the second light guide substrate 14 is obliquely extended to two sides by taking the middle part as a reference, diffuse reflection can be carried out on a light source through the arrangement of the diffuse reflection bulges 15, and only the single-sided diffuse reflection bulges 15 are arranged, so that the processing precision is reduced and the processing cost is also reduced;

as an optimization scheme of the utility model, the bottom of the second light guide substrate 14 is integrally formed with the positioning clamping edge 13, the surface of the first light guide substrate 11 is provided with the positioning groove 12 matched with the positioning clamping edge 13, the positioning clamping edge 13 is clamped in the positioning groove 12, and the cooperation of the positioning clamping edge 13 and the positioning groove 12 can play a role in positioning and guiding the connection of the first light guide substrate 11 and the second light guide substrate 14;

as an optimization scheme of the utility model, the bottom of the diffusion plate 7 is provided with a chute matched with the top of the second light guide substrate 14, the diffusion plate 7 is covered on the surface of the second light guide substrate 14, the first light guide substrate 11 is covered on the surface of the reflecting plate 5, the chute is used for accommodating the top of the second light guide substrate 14, and the diffusion plate 7 can further perform secondary diffusion on the received light;

as an optimization scheme of the utility model, a connecting component is arranged between the side cover 1 and the main body frame 10, the connecting component comprises a connecting groove 18, a claw 19 and a lock tongue 20, the lock tongue 20 is integrally formed on the surface of the side cover 1, the connecting groove 18 matched with the lock tongue 20 is formed on the surface of the main body frame 10, the claw 19 is uniformly formed on the surface of the lock tongue 20 and the inner wall of the connecting groove 18, the lock tongue 20 is inserted into and clamped in the connecting groove 18 through the two groups of claws 19, and a detachable connecting structure between the side cover 1 and the main body frame 10 can be realized through the arrangement of the connecting component, so that the side cover 1 is conveniently opened to replace all parts of the rear cover 4, the reflecting plate 5, the diffusion plate 7 and the light guide plate 6;

as an optimization scheme of the utility model, the surface of the side cover 1 is integrally formed with the limiting rod 16, the surface of the main body frame 10 is provided with the limiting hole 17 matched with the limiting rod 16, the limiting rod 16 is inserted into the limiting hole 17, and when the side cover 1 and the main body frame 10 are connected, the moving process of the side cover 1 can be limited through the cooperation of the limiting rod 16 and the limiting hole 17, so that the connection of the side cover 1 and the main body frame 10 is facilitated;

as an optimization scheme of the present utility model, the rear cover 4 includes a bottom plate 21, a reinforcing layer 22, an anti-corrosion layer 23 and an antistatic layer 24, the reinforcing layer 22 covers the surface of the bottom plate 21, the anti-corrosion layer 23 covers the surface of the reinforcing layer 22, the antistatic layer 24 covers the surface of the anti-corrosion layer 23, the reflecting plate 5 covers the surface of the antistatic layer 24, the reinforcing layer 22 is a PC board, the anti-corrosion layer 23 is a PE film, the antistatic layer 24 is a PC board coated with an antistatic material, the antistatic layer 24 can perform antistatic protection on the whole, the anti-corrosion layer 23 can perform anti-corrosion protection on the whole, and the reinforcing layer 22 can increase the overall mechanical strength and prevent deformation.

Structural principle: the arrangement of the first light guide substrate 11 and the second light guide substrate 14 can play a role in guiding light at the same time, the second light guide substrate 14 is obliquely extended to two sides by taking the middle part as a reference, the incidence area of the first LED light bar 2 and the second LED light bar 8 on the whole light guide plate 6 can be increased, more light sources enter the inside of the light guide plate 6 and diffuse reflection and diffusion are carried out through the diffuse reflection protrusions 15, the light sources are uniformly irradiated onto the diffusion plate 7, and the received light rays are secondarily diffused by the diffusion plate 7 so as to achieve the aim of uniform light sources, and the processing precision can be reduced, thereby reducing the whole processing cost of the light guide plate 6;

because the lock tongue 20 is fixed in the connecting groove 18 through the two groups of clamping claws 19, a certain force is applied to the side cover 1, so that the lock tongue 20 drives the clamping claws 19 to deform and separate from the inside of the connecting groove 18, separation between the side cover 1 and the main body frame 10 is realized, and replacement of all parts of the rear cover 4, the reflecting plate 5, the diffusion plate 7 and the light guide plate 6 is facilitated.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a light guide plate of diffuse reflection, includes side cap (1), main body frame (10), back lid (4), reflecting plate (5) and diffuser plate (7), its characterized in that: the utility model discloses a light source LED lamp strip, including main body frame (10), back lid (4), reflecting plate (5) and diffuser plate (7), install in proper order in the inside of main body frame (10), first holding tank (3) have been seted up to the inner wall of main body frame (10), the side of back lid (4), reflecting plate (5) and diffuser plate (7) all block in the inside of first holding tank (3), side cap (1) are installed in the surface of main body frame (10), second holding tank (9) have all been seted up to the inner wall of side cap (1) and main body frame (10), two sets of the inside of second holding tank (9) has block respectively first LED lamp strip (2) and second LED lamp strip (8), and first LED lamp strip (2) and second LED lamp strip (8) set up relatively, be provided with the diffuse reflection light guide assembly that is used for making the light source evenly divergent between reflecting plate (5) and diffuser plate (7).

2. A diffusely reflective light guide plate as defined in claim 1, wherein: the diffuse reflection light guide assembly is arranged to be a light guide plate (6), the light guide plate (6) is composed of a first light guide substrate (11), a second light guide substrate (14) and diffuse reflection protrusions (15), the diffuse reflection protrusions (15) are arranged on the surface of the first light guide substrate (11), the diffuse reflection protrusions (15) are distributed in an array mode, the height of the diffuse reflection protrusions (15) increases gradually from two sides of the first light guide substrate (11) to the middle, the second light guide substrate (14) is arranged to cover the surface of the diffuse reflection protrusions (15), and the second light guide substrate (14) extends obliquely to two sides with the middle portion serving as a reference.

3. A diffusely reflective light guide plate as claimed in claim 2, wherein: the bottom integrated into one piece of second leaded light base plate (14) has location card limit (13), the constant head tank (12) with location card limit (13) assorted are seted up on the surface of first leaded light base plate (11), location card limit (13) block is in the inside of constant head tank (12).

4. A diffusely reflective light guide plate as claimed in claim 3, wherein: the bottom of the diffusion plate (7) is provided with a chute matched with the top of the second light guide substrate (14), the diffusion plate (7) covers the surface of the second light guide substrate (14), and the first light guide substrate (11) covers the surface of the reflecting plate (5).

5. A diffusely reflective light guide plate as defined in claim 1, wherein: coupling assembling is provided with between side cap (1) and main part frame (10), coupling assembling includes spread groove (18), jack catch (19) and spring bolt (20), the surface integrated into one piece of side cap (1) has spring bolt (20), spread groove (18) with spring bolt (20) assorted are seted up on the surface of main part frame (10), the surface of spring bolt (20) and the equal integrated into one piece of inner wall of spread groove (18) have jack catch (19), spring bolt (20) are pegged graft and block in the inside of spread groove (18) through two sets of jack catch (19).

6. A diffusely reflective light guide plate as defined in claim 5, wherein: the surface integrated into one piece of side cap (1) has gag lever post (16), the surface of main body frame (10) offered with gag lever post (16) assorted spacing hole (17), peg graft in the inside of spacing hole (17) gag lever post (16).

7. A diffusely reflective light guide plate as defined in claim 1, wherein: the back cover (4) comprises a bottom plate (21), a reinforcing layer (22), an anti-corrosion layer (23) and an anti-static layer (24), wherein the reinforcing layer (22) is covered on the surface of the bottom plate (21), the anti-corrosion layer (23) is covered on the surface of the reinforcing layer (22), the anti-static layer (24) is covered on the surface of the anti-static layer (23), the reflecting plate (5) is covered on the surface of the anti-static layer (24), the reinforcing layer (22) is arranged as a PC (personal computer) plate, the anti-corrosion layer (23) is arranged as a PE (polyethylene) film, and the anti-static layer (24) is arranged as a PC plate coated with an anti-static material.