High-luminous-efficiency anti-dazzle panel lamp

Abstract

The utility model discloses a high luminous efficiency anti-dazzle panel lamp which comprises a first module, a second module and a panel, the first module and the second module are the same in structure, and the first module and the second module are both arranged on the panel. The first module comprises a back plate, an aluminum substrate, a lens assembly and an anti-dazzle assembly; the aluminum substrates are arranged on the back plate, and at least two LED light source groups are arranged on each aluminum substrate; the lens assembly is arranged on the aluminum substrate, the lens assembly comprises a lens support and lens bodies, and the pair of LED light source sets is correspondingly clamped in one lens body; the anti-dazzle assemblies are arranged on the back plate, each anti-dazzle assembly comprises an anti-dazzle cover and an anti-dazzle cup, one lens body is correspondingly clamped in one anti-dazzle cup, a grid optical surface is arranged on the inner circumferential surface of each anti-dazzle cup, and each grid surface of the grid optical surfaces is an outwards-convex curved surface. And by adopting the modular design, the assembly is convenient, and the production efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of lamps, in particular to a high luminous efficiency and anti-glare panel lamp. Background Technique

[0002] The existing panel lamps can be divided into side-emitting and direct-down-emitting in terms of the light-emitting form. The side-emitting mainly exports light by tightly attaching an anti-glare cover to the light source. Its light-emitting angle is uncontrollable, generally with a relatively large light-emitting angle. It is very difficult to achieve a unified glare value (UGR) below 19. When the color rendering index Ra of the light source is >90, its luminous efficiency is generally lower than 135 lm / W; while the direct-down-emitting mainly tightly attaches a single lens to the light source and shoots the light from the light-emitting surface with the help of a diffusion plate. It is also very difficult to achieve a unified glare value (UGR) below 19 under high luminous flux. When the color rendering index Ra of the light source is >90, its luminous efficiency is generally lower than 145 lm / W. In other words, the existing panel lamps cannot solve the two technical problems of high-efficiency light output and glare at the same time. The unified glare value (UGR) is a psychological parameter that measures the subjective reaction of the discomfort caused by the light emitted by the lighting device in the indoor visual environment to the human eye. Its calculation formula is In the formula, L b is the background brightness (cd / m 2 ), ω is the solid angle (sr) formed by each light-emitting part of each lamp to the observer's eyes, L α is the brightness of the lamp in the observer's direction (cd / m 2 ), P is the position index of each lamp. It can be seen from the formula that under the condition of a certain light-emitting port area and luminous flux of the lamp, the larger the light-emitting angle, the higher the UGR. When UGR is equal to 10, the human body can barely feel glare; when UGR is equal to 16, it is the glare acceptable to the human body; when UGR is equal to 19, it is the glare critical value; when UGR is equal to 22, it is uncomfortable glare; when UGR is equal to 28, it is intolerable glare; the color rendering index Ra of the light source, that is, the color rendering index, is a performance index that can truly reflect the color of an object when a light source irradiates the object. The higher the color rendering index, the more the light source can truly display the color of the object and make the object look closer to the color under natural light; the luminous efficiency is the ratio of the total luminous flux (lm) of the lamp to the total working power (W) of the lamp. Under the condition of a certain lamp power, the more LED lamp beads are used and the lower the working current of a single LED lamp bead, the higher the luminous efficiency of the whole lamp; the luminous flux is the visible light energy radiated by the light source into the surrounding space per unit time, and the unit is lumen (lm). Content of the Utility Model

[0003] In order to solve the above problems, the utility model provides a high luminous efficiency and anti-glare panel lamp, which includes a first module, a second module and a panel. The first module and the second module have the same structure, and both the first module and the second module are arranged on the panel;

[0004] The first module includes a backplane, an aluminum substrate, a lens assembly, and an anti-glare assembly;

[0005] A driving power supply is provided on the backplane;

[0006] The aluminum substrate is provided on the backplane. At least two groups of LED light source groups are provided on the aluminum substrate. Each group of LED light source groups includes at least two LED lamp beads, and the LED lamp beads are all electrically connected to the driving power supply;

[0007] The lens assembly is provided on the aluminum substrate. The lens assembly includes a lens bracket and a plurality of lens bodies. The lens bracket and the plurality of lens bodies are integrally formed. The lens bracket is fixedly connected to the aluminum substrate. A pair of LED light source groups are correspondingly clamped in one lens body;

[0008] The anti-glare assembly is provided on the backplane. The anti-glare assembly includes an anti-glare cover and a plurality of anti-glare cups. The anti-glare cover and the plurality of anti-glare cups are integrally formed. The anti-glare cover is fixedly connected to the backplane. One lens body is correspondingly clamped in one anti-glare cup. The anti-glare cup is a cover body surrounded by four inclined surfaces. The outer side of the cover body gradually expands into a horn shape. The connection between the inclined surfaces adopts an arc surface design for smooth transition. The inner peripheral surface of the anti-glare cup is provided with a grid optical surface, and each grid surface of the grid optical surface is an outwardly convex curved surface.

[0009] Preferably, the outwardly convex curved surface satisfies the equation In the formula, z is the surface sag and z>0, c is the surface curvature and c>0, k is the quadratic surface coefficient, r is the radial height, and m is a non-negative integer.

[0010] Preferably, the lens body is hemispherical, its outer surface is smooth, and the inner surface is uniformly provided with reflective scales.

[0011] Preferably, the anti-glare cup is further provided with a spark pattern light-transmitting film or a sawtooth pattern light-transmitting film on the outwardly convex curved surface.

[0012] Preferably, a panel is provided on the anti-glare assembly and is fixedly connected to the anti-glare cover. Square holes are provided on the panel, and one square hole corresponds to one anti-glare cup.

[0013] Preferably, the lens assembly is made of any one of polymethyl methacrylate, polycarbonate, and silica gel.

[0014] Preferably, the anti-glare cover is made of any one of polymethyl methacrylate, polycarbonate, and silica gel.

[0015] Preferably, a radiator is further provided on the aluminum substrate.

[0016] Preferably, graphene heat dissipation films are provided on one side of the backplane and the anti-glare cover facing the aluminum substrate.

[0017] The beneficial effects are as follows:

[0018] This application adopts a modular design. Multiple anti-glare cups and anti-glare covers are integrally formed to constitute an anti-glare component, and then the anti-glare component is assembled with a backplane, an aluminum substrate, and a lens component to form a first module or a second module. During installation, only the first module and the second module need to be fixed to the panel with screws. Compared with the prior art where single anti-glare cups are fixed to the lens body one by one and then assembled with other components, this modular design of this application is more convenient and faster to assemble, and it is not easy to have the problem that the anti-glare cups and the lens body are misaligned;

[0019] Secondly, in this application, by clamping multiple LED beads in each hemispherical lens body, not only can the luminous efficiency of the entire panel light be improved, but also the light spots or shadows that may appear in a single LED bead can be eliminated. At the same time, the light emitted by multiple LED beads is reflected and mixed by the reflective scales of the lens body, making the light source more uniform after coming out of the lens body; by clamping the hemispherical lens body in an anti-glare cup with a smooth arc transition and an overall horn shape, the light-emitting beam angle of the LED light source group is constrained within the range of 60-90°, thereby reducing the URG value of the panel light. A grid optical surface is provided on the inner peripheral surface of the anti-glare cup, and each grid surface of the grid optical surface is set as a convex curved surface, which can further adjust the divergence angle of the light. Finally, with the use of a spark pattern light-transmitting film or a serrated pattern light-transmitting film, the light effect is made softer, avoiding glare generated by the panel light. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of this application and constitute a part of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application. In the drawings:

[0021] Figure 1 It is a bottom view of the present utility model;

[0022] Figure 2 It is a top view of the present utility model;

[0023] Figure 3 It is an exploded structural schematic diagram of the present utility model;

[0024] Figure 4 It is an enlarged view of the LED light source group of the present utility model;

[0025] In the figure:

[0026] 1. First module;

[0027] 11. Backplane; 111. Driving power supply;

[0028] 12. Aluminum substrate; 121. LED light source group;

[0029] 13. Lens assembly; 131. Lens bracket; 132. Lens body;

[0030] 14. Anti-glare assembly; 141. Anti-glare cover; 142. Anti-glare cup;

[0031] 2. Second module;

[0032] 3. Panel; 31. Square hole. Detailed implementation manner

[0033] The following will disclose multiple implementation manners of the present utility model in diagrams. For the sake of clear illustration, many practical details will be described together in the following narrative. However, it should be understood that these practical details are not used to limit the present utility model. That is to say, in some implementation manners of the present utility model, these practical details are not necessary. In addition, for the purpose of simplifying the diagrams, some conventional structures and components will be illustrated in a simple schematic manner in the diagrams.

[0034] It should be noted that all directional indications such as up, down, left, right, front, back... in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture as shown in the drawings. If this specific posture changes, then the directional indications will also change accordingly.

[0035] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes, and do not particularly refer to the order or sequence, nor are they used to limit the present utility model. It is only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can implement it. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0036] Embodiment

[0037] Please refer to Figures 1 to 3 , the present utility model provides a high luminous efficiency anti-glare panel lamp, which includes a first module 1, a second module 2 and a panel 3. The first module 1 and the second module 2 have the same structure. The first module 1 and the second module 2 are both arranged on the panel 3, and the first module 1 and the second module 2 are both fixedly connected to the panel 3 by screws; the modular design makes the assembly more convenient and fast;

[0038] The first module 1 includes a backplane 11, an aluminum substrate 12, a lens assembly 13, and an anti-glare assembly 14;

[0039] A driving power supply 111 is provided on the backplane 11. The aluminum substrate 12 is arranged on the backplane 11. The lens assembly 13 is arranged on the aluminum substrate 12. The anti-glare assembly 14 is arranged on the backplane 11. The panel 3 is arranged on the anti-glare assembly 14. The driving power supply 111 is fixedly installed on the side of the backplane 11 facing away from the aluminum substrate 12. There are at least 2 aluminum substrates 12, preferably 4. At least two groups of LED light source groups 121 are provided on each aluminum substrate 12. Please refer to Figure 4 , Figure 4 which is an enlarged view of the LED light source group of the present invention. Each group of LED light source groups 121 includes at least two LED lamp beads, preferably 14. These 14 LED lamp beads are arranged in a 3-4-4-3 formation, making the entire arrangement formation approach a circle. This circular-approaching arrangement formation is more conducive to the light diverging more evenly within the lens assembly to avoid the generation of light spots. The LED lamp beads are fixed on the aluminum substrate 12 and are all electrically connected to the driving power supply 111. The lens assembly 13 includes a lens bracket 131 and a plurality of lens bodies 132. The lens bodies 132 are hemispherical, with a smooth outer surface and uniformly arranged reflective scales on the inner surface. The light emitted by multiple LED lamp beads is reflected and mixed by the reflective scales of the lens body, making the light source more uniform after emerging from the lens. The lens bracket 131 and the plurality of lens bodies 132 are integrally formed, which can save installation time. The lens bracket 131 is fixedly connected to the aluminum substrate 12 by screws. A pair of LED light source groups 121 are correspondingly clamped within one lens body 132. By clamping multiple LED lamp beads within each hemispherical lens body, not only can the luminous efficiency of the entire panel light be improved, but also the light spots or shadows that may appear in a single LED lamp bead can be eliminated. There are at least two anti-glare assemblies 14. Each anti-glare assembly 14 includes an anti-glare cover 141 and a plurality of anti-glare cups 142. The anti-glare cover 141 and the plurality of anti-glare cups 142 are integrally formed. This modular and integrally formed design is beneficial to improving the assembly efficiency of the panel light and is also very convenient for later maintenance. The anti-glare cover 141 is fixedly connected to the backplane 11. One lens body 132 is correspondingly clamped within one anti-glare cup 142. The anti-glare cup 142 is a cover body surrounded by four inclined surfaces. The outer part of the cover body gradually expands in a flared shape. The connection between the inclined surfaces is designed with a smooth arc transition. The anti-glare cup 142 designed in this way can confine the light beam angle of the LED light source group within the range of 60-90°, thereby reducing the URG value of the panel light. The inner peripheral surface of the anti-glare cup 142 is provided with a grid optical surface. Each grid surface of the grid optical surface is a convex curved surface, and the convex curved surface satisfies the equation Where z is the sagitta of the curved surface and z>0, c is the curvature of the curved surface and c>0, k is the conic coefficient, r is the radial height, and m is a non-negative integer; the anti-glare cup 142 is also provided with a spark pattern light-transmitting film or a serrated pattern light-transmitting film on the convex curved surface. The convex curved surface can further adjust the divergence angle of the light. Combined with the use of the spark pattern light-transmitting film or the serrated pattern light-transmitting film, the light effect is made softer and glare generated by the panel light is avoided.

[0040] Please refer back Figure 3 , the panel 3 is fixedly connected to the anti-glare cover 141. A square hole 31 is provided on the panel 3, and one square hole 31 corresponds to one anti-glare cup 142. A high light transmittance diffuser plate can be selected as the panel, which is beneficial to more uniform light distribution; both the lens assembly 3 and the anti-glare cover 141 can be made of any one of polymethyl methacrylate, polycarbonate, and silicone. These materials have the advantages of high light transmittance and easy processing and molding; a radiator is also provided on the aluminum substrate 12. The radiator can be heat dissipation fins or a heat conduction pad. The setting of heat dissipation fins or a heat conduction pad on the aluminum substrate 12 is prior art and will not be elaborated here; graphene heat dissipation films are provided on both the back plate 11 and the anti-glare cover 141 on the side facing the aluminum substrate 12 to further improve the heat dissipation performance of the panel light and extend the service life of the panel light.

[0041] By integrally forming a plurality of anti-glare cups 142 and the anti-glare cover 141 to form an anti-glare assembly 14, and then assembling the anti-glare assembly 14 with the back plate 11, the aluminum substrate 12, and the lens assembly 13 to form the first module 1 or the second module 2. During installation, only the first module 1 and the second module 2 need to be fixed to the panel 3 with screws. Compared with the prior art of fixing each anti-glare cup 142 and the lens body 132 in one-to-one correspondence and then assembling with other components, the modular design of this application is more convenient and fast, and it is not easy to have the problem that the anti-glare cup 142 and the lens body 132 are not aligned;

[0042] In addition, by clamping multiple LED lamp beads in each hemispherical lens body 132, not only can the luminous light effect of the entire panel light be improved, but also the light spots or shadows that may appear in a single LED lamp bead can be eliminated. At the same time, the light emitted by the multiple LED lamp beads is reflected and mixed by the reflective scales of the lens body 132, making the light source more uniform after coming out of the lens body 132; by clamping the hemispherical lens body 132 in the anti-glare cup 142 with a smooth arc surface transition and an overall trumpet shape, the light beam angle of the LED light source group is constrained within the range of 60-90°, thereby reducing the URG value of the panel light. A grid optical surface is provided on the inner peripheral surface of the anti-glare cup 142, and each grid surface of the grid optical surface is set as a convex curved surface, which can further adjust the divergence angle of the light. Finally, combined with the use of the spark pattern light-transmitting film or the serrated pattern light-transmitting film, the light effect is made softer and glare generated by the panel light is avoided.

[0043] In summary, the present application not only has high luminous efficiency, anti-glare, good heat dissipation performance and long service life, but also adopts a modular design, which is convenient for assembly and has high production efficiency.

[0044] The above are only embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and changes can be made to the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the scope of the claims of the present utility model.

Claims

1. A high luminous efficiency anti-glare panel light, characterized in that, It includes a first module (1), a second module (2) and a panel (3). The first module (1) and the second module (2) have the same structure, and both the first module (1) and the second module (2) are arranged on the panel (3); The first module (1) includes a backplane (11), an aluminum substrate (12), a lens assembly (13) and an anti-glare assembly (14); A driving power supply (111) is arranged on the backplane (11); The aluminum substrate (12) is arranged on the backplane (11). At least two groups of LED light source groups (121) are arranged on the aluminum substrate (12). Each group of the LED light source groups (121) includes at least two LED lamp beads, and the LED lamp beads are all electrically connected to the driving power supply (111); The lens assembly (13) is arranged on the aluminum substrate (12). The lens assembly (13) includes a lens bracket (131) and a plurality of lens bodies (132). The lens bracket (131) and the plurality of lens bodies (132) are integrally formed. The lens bracket (131) is fixedly connected to the aluminum substrate (12). A pair of the LED light source groups (121) are correspondingly clamped in one of the lens bodies (132); The anti-glare assembly (14) is arranged on the backplane (11). The anti-glare assembly (14) includes an anti-glare cover (141) and a plurality of anti-glare cups (142). The anti-glare cover (141) and the plurality of anti-glare cups (142) are integrally formed. The anti-glare cover (141) is fixedly connected to the backplane (11). One of the lens bodies (132) is correspondingly clamped in one of the anti-glare cups (142). The anti-glare cup (142) is a cover body surrounded by four inclined planes. The outer side of the cover body gradually expands in a horn shape. The connection between the inclined planes adopts an arc surface design for smooth transition. A grid optical surface is arranged on the inner peripheral surface of the anti-glare cup (142). Each grid surface of the grid optical surface is an outwardly convex curved surface.

2. The high luminous efficacy anti-glare panel lamp according to claim 1, wherein, The convex surface satisfies the equation where z is the sag of the surface and z > 0, c is the curvature of the surface and c > 0, k is the conic coefficient, r is the radial height, and m is a non-negative integer.

3. The high luminous efficiency anti-glare panel lamp according to claim 1, wherein The lens body (132) is hemispherical, its outer surface is smooth, and reflective scales are uniformly arranged on the inner surface.

4. The high luminous efficacy anti-glare panel lamp according to claim 1, characterized in that A spark pattern light-transmitting film or a sawtooth pattern light-transmitting film is further arranged on the outwardly convex curved surface of the anti-glare cup (142).

5. The high luminous efficacy anti-glare panel light according to claim 1, wherein, The panel (3) is arranged on the anti-glare assembly (14) and is fixedly connected to the anti-glare cover (141). Square holes (31) are arranged on the panel (3). One of the square holes (31) corresponds to one of the anti-glare cups (142).

6. The high luminous efficiency anti-glare panel lamp according to claim 1, wherein The lens assembly (13) is made of any one of polymethyl methacrylate, polycarbonate, and silica gel.

7. The high luminous efficacy anti-glare panel lamp according to claim 1, characterized in that, The anti-glare cover (141) is made of any one of polymethyl methacrylate, polycarbonate, and silica gel.

8. The high luminous efficacy anti-glare panel lamp according to claim 1, wherein, A radiator is further arranged on the aluminum substrate (12).

9. The high luminous efficiency anti-glare panel lamp according to claim 1, characterized in that, Graphene heat dissipation films are arranged on one side of the backplane (11) and the anti-glare cover (141) facing the aluminum substrate (12).

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