Classroom lamp grating plate and manufacturing method thereof

Abstract

The invention relates to the technical field of illumination, in particular to a classroom lamp grating plate and a manufacturing method thereof.The classroom lamp grating plate comprises a light source, non-uniform light rays are emitted on the light source, a diffusion light-transmitting grating plate is arranged below the light source, and the diffusion light-transmitting grating plate comprises a skirt edge, a light inlet face unit, a grating unit and a grating light outlet net face; the light incident surface unit is used for receiving non-uniform light rays, the light incident surface unit, the grating unit and the grating light emergent net surface are jointly arranged in the skirt edge, and light diffusant nanoparticles are arranged in the diffusion light-transmitting grating plate. The surface area of the diffusion light-transmitting grating plate is greatly increased through the concave-convex structure of the grating surface of the diffusion light-transmitting grating plate, the brightness uniformity of the light-emitting surface of the diffusion light-transmitting grating plate is greatly improved in cooperation with the light diffusant nanoparticles, and the average brightness of the surface of the light-emitting surface is reduced; the contrast ratio of the brightness of the light outlet of the diffusion light-transmitting grating plate and the ambient brightness is effectively reduced, the glare of the lamp is greatly reduced, and the ideal lighting effect that the lamp is bright and does not glare is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of lighting, and discloses a classroom lamp grid plate and a manufacturing method thereof. Background Art

[0002] At present, classrooms provide lighting for student desk areas, providing students with a uniform and low-glare lighting environment. In order to ensure uniform light emission and anti-glare effects at the light outlet, lamps often use a combination of a light-transmitting diffuser plate plus a prism plate, a light-transmitting diffuser plate plus an anti-glare film, or a light-transmitting diffuser plate plus an injection-molded grille at the light outlet.

[0003] However, the mold costs and material costs of optical components such as light-transmitting diffusers, diffusion films, prism plates and injection-molded grilles are high, resulting in a high proportion of the optical component costs of lamps. After these lamps are manufactured, although they can ensure the brightness of the lamps, it is difficult to reduce the glare of the lamps themselves, resulting in dazzling effects and limitations. Summary of the invention

[0004] In view of the defects in the prior art, the purpose of the present invention is to provide a classroom lamp grille plate and a manufacturing method thereof, so as to achieve the balance between light diffusion and anti-glare functions of optical components, while having low cost and high material utilization rate of light-transmitting diffusion plate sheets, thus overcoming the defect of high prices of existing lamp optical components.

[0005] In order to solve the above technical problems, the present invention proposes the following technical solutions:

[0006] A classroom lamp grille plate comprises a light source, which emits non-uniform light. A diffuse light-transmitting grille plate is arranged below the light source. The diffuse light-transmitting grille plate comprises a skirt, a light incident surface unit, a grille unit and a grille light-emitting mesh surface. The light incident surface unit is used to receive non-uniform light. The light incident surface unit, the grille unit and the grille light-emitting mesh surface are jointly arranged in the skirt. Light diffusing agent nanoparticles are arranged in the diffuse light-transmitting grille plate.

[0007] Furthermore, both upper and lower ends of the diffuse light-transmitting grid plate are provided with UV-resistant yellowing layers.

[0008] Furthermore, there are a plurality of grille units, all of which are vertical square structures.

[0009] Furthermore, the skirt is a rectangular flat surface with uniform thickness formed by vacuum forming.

[0010] The present invention also provides a method for manufacturing a classroom lamp grid plate, the method comprising the following steps:

[0011] S1, uniformly mixing modified plastic particles, anti-UV agent particles and light diffusing agent nanoparticles, feeding them into a plastic extruder for thermoforming into a uniform sheet profile, and processing the uniform sheet profile into a diffuse light-transmitting grid plate of a specified shape through a blister process and a blister mold;

[0012] S2, preparing a grille unit and a grille light-emitting mesh surface in a diffuse light-transmitting grille plate by using a plastic blister mold;

[0013] S3, apply anti-UV yellowing layer on the two sides of the diffuse light-transmitting grille plate.

[0014] Furthermore, the modified plastic particles are HIPS, PMMA, PC, PVC or PP modified plastic particles.

[0015] Furthermore, the blister process is to pull the rolled sheet profile into an electric furnace oven and heat it to a softened state, pull the sheet profile above the blister mold while it is hot, move the blister mold upward and evacuate it, adsorb the softened sheet profile to the surface of the blister mold, and at the same time spray cooling water in a mist form on the surface of the formed sheet profile to harden it. The formed sheet profile is then automatically pulled to a storage box, and a pneumatic cutter separates the formed and unformed sheet profiles, thereby completing the entire process.

[0016] Furthermore, the blister mold is processed on the aluminum material into a continuous three-dimensional feature with uneven surfaces according to the grille shape.

[0017] It can be seen from the above technical solution that the beneficial effects of the present invention are:

[0018] The present invention greatly increases the surface area of ​​the diffuse light-transmitting grating plate through the concave-convex structure of the grating surface of the diffuse light-transmitting grating plate, and then cooperates with the light diffusing agent nanoparticles to greatly improve the brightness uniformity of the light-emitting surface of the diffuse light-transmitting grating plate, reduce the average brightness of the light-emitting surface, effectively reduce the contrast between the brightness of the light outlet of the diffuse light-transmitting grating plate and the ambient brightness, greatly reduce the glare of the lamp itself, and achieve the ideal lighting effect of bright but not dazzling lamps. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0020] Figure 1 It is a partial schematic diagram of the light source and the diffuse light-transmitting grid plate in the present invention;

[0021] Figure 2 It is a schematic diagram of the connection between the light source and the diffuse light-transmitting grid plate in the present invention;

[0022] Figure 3 A relationship diagram of non-uniform light in the diffuse light-transmitting grid plate of the present invention;

[0023] Figure 4 Schematic diagram of the front and back of the diffuse light-transmitting grid plate in the present invention;

[0024] Figure 5 is a schematic diagram of another form of the light incident surface unit in the present invention;

[0025] Figure 6 is a schematic diagram of a second form of the grid unit in the present invention;

[0026] Figure 7 It is a schematic diagram of a third form of the grid unit in the present invention.

[0027] Figure 8 It is a schematic diagram of the second form of the skirt in the present invention.

[0028] Fig. 9 It is a schematic diagram of the third form of the skirt in the present invention.

[0029] Fig.10 It is a schematic diagram of the fourth form of the skirt in the present invention.

[0030] Reference numerals:

[0031] Light source 01, non-uniform light 01-1, diffuse light-transmitting grille plate 02, anti-UV yellowing layer 02-1, light diffusing agent nanoparticles 02-2, skirt 02-3, light incident surface unit 02-4, grille unit 02-5, grille light emitting mesh surface 02-6. DETAILED DESCRIPTION

[0032] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0033] See also Figure 1-4 A classroom lamp grille plate comprises a light source 01, which emits non-uniform light 01-1. A diffuse light-transmitting grille plate 02 is arranged below the light source 01. The diffuse light-transmitting grille plate 02 comprises a skirt 02-3, a light incident surface unit 02-4, a grille unit 02-5 and a grille light-emitting mesh surface 02-6. The light incident surface unit 02-4 is used to receive the non-uniform light 01-1. The light incident surface unit 02-4, the grille unit 02-5 and the grille light-emitting mesh surface 02-6 are jointly arranged in the skirt 02-3. Light diffusing agent nanoparticles 02-2 are arranged in the diffuse light-transmitting grille plate 02.

[0034] In actual use, the surface area of ​​the diffuse light-transmitting grating plate 02 is greatly increased by the concave-convex structure of the grating surface, and the light diffusing agent nanoparticles 02-2 are used to greatly improve the brightness uniformity of the light-emitting surface of the diffuse light-transmitting grating plate 02, reduce the average brightness of the light-emitting surface, and effectively reduce the contrast between the brightness of the light outlet of the diffuse light-transmitting grating plate 02 and the ambient brightness, greatly reduce the glare of the lamp itself, and achieve the ideal lighting effect of "bright but not dazzling" for the lamp.

[0035] Among them, the light incident surface unit 02-4 is a plane close to the light source, and it can be achieved by adopting the following method: Figure 5 It can be achieved by the dense pyramid shape shown.

[0036] By setting the light diffusing agent nanoparticles 02-2, it is possible to diffuse the bright spot of the point light source into a large-area three-dimensional light source.

[0037] In this embodiment, both upper and lower ends of the diffuse light-transmitting grid plate 02 are provided with UV-resistant yellowing layers 02 - 1 .

[0038] In this embodiment, the grille unit 02-5 is provided with a plurality of them, all of which are vertical vertical square structures; wherein, the plurality of vertical vertical grille units 02-5 and the plurality of grille light outlet mesh surfaces 02-6, the plurality of vertical vertical square structure grille units 02-5 are three-dimensional grille structures formed by the diffusion plate sheet being vacuum-formed and pulled up, and the grille unit 02-5 may be as follows Figure 6 The shape of the vertical rectangular structure shown in the figure, Figure 7 The vertical facade shown is a hexagonal honeycomb structure.

[0039] In this embodiment, the skirt 02-3 is a rectangular plane with uniform thickness formed by vacuum forming; it can be formed into a square, elliptical, or triangular plane with uniform thickness by vacuum forming, such as Figure 8-10 shown.

[0040] The present invention also provides a method for manufacturing a classroom lamp grid plate, the method comprising the following steps:

[0041] S1, uniformly mix the modified plastic particles, anti-UV agent particles and light diffusing agent nanoparticles 02-2, send them into a plastic extruder for thermoforming into a uniform sheet profile, and process the uniform sheet profile into a diffuse light-transmitting grid plate 02 of a specified shape through a vacuum forming process and a vacuum forming mold;

[0042] S2, preparing the grille unit 02-5 and the grille light-emitting mesh surface 02-6 in the diffuse light-transmitting grille plate 02 by using a plastic blister mold;

[0043] S3, use a punching and cutting tool to process the grating plate blank into a grating plate finished product of a specified shape.

[0044] In this embodiment, the modified plastic particles are HIPS, PMMA, PC, PVC or PP modified plastic particles.

[0045] In this embodiment, the blister process is to pull the rolled sheet profile into an electric furnace oven and heat it to a softened state, pull the sheet profile above the blister mold while it is hot, move the blister mold upward and evacuate it, and adsorb the softened sheet profile to the surface of the blister mold. At the same time, spray cooling water in a mist form on the surface of the formed sheet profile to harden it. The formed sheet profile is then automatically pulled to the storage box, and the pneumatic cutter separates the formed and unformed sheet profiles, thereby completing the entire process.

[0046] In this embodiment, the blister mold is processed into a continuous three-dimensional feature with uneven surfaces on the aluminum material according to the shape of a grid.

[0047] Principle: Light source 01 emits light through diffuse light-transmitting grid plate 02; Figure 2 As shown in the microstructure diagram, the non-uniform light 01-1 emitted by the light source 01 passes through the anti-UV yellowing layer 02-1 of the light incident surface unit 02-4 of the diffuse light-transmitting grid plate 02, is repeatedly reflected by the multiple light diffusing agent nanoparticles 02-2 inside the diffuse light-transmitting grid plate 02, and then passes through the anti-UV yellowing layer 02-1 on the other side of the diffuse light-transmitting grid plate 02, and forms a uniform light 03 to irradiate from the vertical facade grid unit 02-5 and the grid light-emitting mesh surface 02-6.

[0048] The non-uniform light 01-1 is visually manifested as a circular bright spot with extremely high brightness, which will cause glare, blindness and other adverse effects when viewed directly by the naked eye. In actual application, the non-uniform light 01-1 is diffused through the light-transmitting grille plate 02 to form uniform light 03, which is visually manifested as a three-dimensional bright surface with lower brightness but hundreds of times larger luminous area, which can be viewed directly by the naked eye and is comfortable and not dazzling.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A classroom lighting grid plate, comprising a light source (01), wherein the light source (01) emits non-uniform light (01-1), characterized in that: A diffuse light-transmitting grille plate (02) is arranged below the light source (01); the diffuse light-transmitting grille plate (02) comprises a skirt (02-3), a light incident surface unit (02-4), a grille unit (02-5) and a grille light-emitting mesh surface (02-6); the light incident surface unit (02-4) is used to receive non-uniform light (01-1); the light incident surface unit (02-4), the grille unit (02-5) and the grille light-emitting mesh surface (02-6) are arranged together in the skirt (02-3); and light diffusing agent nanoparticles (02-2) are arranged in the diffuse light-transmitting grille plate (02).

2. A classroom lighting grid plate according to claim 1, characterized in that: The upper and lower ends of the diffuse light-transmitting grid plate (02) are both provided with UV-resistant yellowing layers (02-1).

3. The classroom lighting grid plate according to claim 1, characterized in that: There are a plurality of grille units (02-5), all of which are vertical square structures.

4. The classroom lighting grid plate according to claim 1, characterized in that: The skirt (02-3) is a rectangular plane with uniform thickness formed by vacuum forming.

5. A method for manufacturing a classroom lamp grille plate, characterized in that: The method comprises the following steps: S1, uniformly mixing modified plastic particles, anti-UV agent particles and light diffusing agent nanoparticles (02-2), feeding them into a plastic extruder for thermoforming into a uniform sheet profile, and processing the uniform sheet profile into a diffuse light-transmitting grid plate (02) of a specified shape through a vacuum forming process and a vacuum forming mold; S2, preparing a grid unit (02-5) and a grid light-emitting mesh surface (02-6) in a diffuse light-transmitting grid plate (02) by means of a plastic suction mold; S3, applying an anti-UV yellowing layer (02-1) on two side surfaces of the diffuse light-transmitting grille plate (02).

6. The method for manufacturing a classroom lamp grid plate according to claim 5, characterized in that: The modified plastic particles are HIPS, PMMA, PC, PVC or PP modified plastic particles.

7. The method for manufacturing a classroom lamp grid plate according to claim 5, characterized in that: The blister process is to pull the rolled sheet profile into an electric furnace oven to heat it to a softened state, pull the sheet profile above the blister mold while it is hot, move the blister mold upward and evacuate it, adsorb the softened sheet profile to the surface of the blister mold, and at the same time spray cooling water in a mist form on the surface of the formed sheet profile to harden it. The formed sheet profile is then automatically pulled to a storage box, and a pneumatic cutter separates the formed and unformed sheet profiles, thereby completing the entire process.

8. The method for manufacturing a classroom lamp grid plate according to claim 7, characterized in that: The plastic blister mold is processed on the aluminum material into continuous three-dimensional features with uneven surfaces according to the grid shape.

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