Heat dissipation mechanism and strong light guide LED diffusion plate

Abstract

The utility model relates to the technical field of LED diffusion plates, and particularly discloses a heat dissipation mechanism and a strong light guide LED diffusion plate, the heat dissipation mechanism comprises a mounting frame, the left end and the right end of the mounting frame are provided with heat dissipation holes, the inner end of the mounting frame is uniformly and fixedly provided with a plurality of first heat dissipation blocks, and the upper end of each first heat dissipation block is uniformly provided with a plurality of second heat dissipation blocks; a rotating shaft is rotationally connected to the side wall of one end of the mounting frame, and fan blades are fixedly mounted at the inner end of the rotating shaft and located at one end of the heat dissipation block I. The diffusion plate and the light guide plate are separately mounted, the heat dissipation block I and the heat dissipation block II are mounted between the diffusion plate and the light guide plate, and the fan blades are mounted on one side of the diffusion plate and the heat dissipation block II; when the fan blades rotate, air is blown to the first heat dissipation block and the second heat dissipation block, heat on the first heat dissipation block and the second heat dissipation block is rapidly taken away, and the heat dissipation effect on the diffusion plate is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED diffusion plates, in particular to a heat dissipation mechanism and a highly light-guiding LED diffusion plate. Background Technique

[0002] The biggest feature of the diffusion plate is that it causes great interference to light. No matter what the original designed light distribution curve is, as long as the light passes through the diffusion plate, it will change the beam angle to 160-176°. Therefore, when looking at the side of the lamp panel, there is a hazy feeling. This can best prove that the beam angle is as large as 160-176°. The larger the beam angle, the lower the illuminance. Therefore, the demand for a highly light-guiding LED diffusion plate with a heat dissipation function is increasing day by day.

[0003] There are certain drawbacks in the heat dissipation structure of the existing diffusion plates. The surface area of the components with the function of absorbing heat is small, and the absorbed heat is limited, which directly leads to poor heat dissipation function. The light guide plate and the diffusion plate are generally directly connected, resulting in the inability to discharge the heat between the two well, and the heat cannot be directly discharged outside the structure, which has a certain impact during use. Content of the Utility Model

[0004] The purpose of the utility model is to provide a heat dissipation mechanism and a highly light-guiding LED diffusion plate to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A heat dissipation mechanism, including: an installation frame, heat dissipation holes are opened at both the left and right ends of the installation frame, and a number of first heat dissipation blocks are uniformly and fixedly installed at the inner end of the installation frame, and a number of second heat dissipation blocks are uniformly installed at the upper end of each first heat dissipation block;

[0006] A rotating shaft is rotatably connected to the side wall of one end of the installation frame, and a fan blade is fixedly installed at the inner end of the rotating shaft, and the fan blade is located at one end of the first heat dissipation block.

[0007] Preferably, a diffusion plate and a light guide plate are respectively installed at the upper end of the installation frame, the diffusion plate and the light guide plate are respectively located at the upper and lower ends of the first heat dissipation block, and the upper end of the second heat dissipation block contacts the lower end of the diffusion plate.

[0008] Preferably, through holes are opened at the inner ends of the first heat dissipation blocks, grooves are opened on the inner walls at the upper and lower ends of the through holes, and first heat dissipation grooves are opened on the outer walls at the left and right ends of the first heat dissipation blocks.

[0009] Preferably, the second heat dissipation block is in the shape of a quadrangular frustum, and the size of the upper end is larger than that of the lower end.

[0010] Preferably, air ducts are opened in the left and right directions of the second heat dissipation block, and second heat dissipation grooves are opened on the upper and lower sides of the front and rear ends of the second heat dissipation block.

[0011] Preferably, there are two rotating shafts, which are rotatably connected to the side wall of the mounting frame through bearings. A pulley is fixedly installed on the outer wall of the rotating shaft, and a belt is drivingly connected between the two pulleys.

[0012] Preferably, a silent motor is fixedly installed on the outer wall of one end of the mounting frame, and the output end of the silent motor is fixedly connected to the outer end of one of the rotating shafts through a coupling.

[0013] A highly light-conducting LED diffuser plate includes the above heat dissipation mechanism.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] By separately installing the diffuser plate and the light guide plate, heat dissipation blocks I and II are installed between the diffuser plate and the light guide plate, and a fan blade is installed on one side thereof. When the fan blade rotates, it blows air on heat dissipation blocks I and II, quickly taking away the heat on heat dissipation blocks I and II, achieving the effect of dissipating heat from the diffuser plate. Description of the Drawings

[0016] Figure 1 is a front sectional view of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the structure of heat dissipation block I of the present utility model;

[0018] Figure 3 is a side view of heat dissipation block II of the present utility model;

[0019] Figure 4 is a top view of the connection of two rotating shafts of the present utility model.

[0020] In the figure: 1, mounting frame; 2, diffuser plate; 3, light guide plate; 4, heat dissipation hole; 5, heat dissipation block I; 6, heat dissipation groove I; 7, through hole; 8, groove; 9, heat dissipation block II; 10, air duct; 11, heat dissipation groove II; 12, rotating shaft; 13, fan blade; 14, pulley; 15, belt; 16, silent motor. Detailed Embodiment

[0021] In order to clearly and completely describe the purpose and technical solution of the present utility model, and make the advantages more clear, the following further details the embodiments of the present utility model with reference to the drawings. It should be understood that the specific embodiments described herein are some embodiments of the present utility model, rather than all embodiments, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0022] Please refer to Figures 1-4The utility model provides a technical solution: a heat dissipation mechanism, comprising: a mounting frame 1, the left and right ends of the mounting frame 1 are provided with heat dissipation holes 4, the inner end of the mounting frame 1 is evenly fixed with a plurality of heat dissipation blocks 5, the upper end of each heat dissipation block 5 is evenly installed with a plurality of heat dissipation blocks 2 9, the heat dissipation blocks 2 9 are in the shape of a quadrangular pyramid, and the size of the upper end is larger than the size of the lower end, the upper end of the mounting frame 1 is respectively provided with a diffusion plate 2 and a light guide plate 3, the diffusion plate 2 and the light guide plate 3 are respectively located at the upper and lower ends of the heat dissipation block 5, The upper end of the heat dissipation block 2 9 contacts the lower end of the diffuser plate 2. There is a gap between the diffuser plate 2 and the light guide plate 3, and they are located on the upper and lower sides of the heat dissipation hole 4, which is convenient for dissipating heat from the diffuser plate 2. Since the upper end of the heat dissipation block 2 9 contacts the diffuser plate 2, the contact area with the diffuser plate 2 is increased, and the heat on the diffuser plate 2 is transferred to the heat dissipation block 2 9, and the heat is quickly transferred to the air. Since the heat conduction effect gradually decreases from top to bottom, the size of the heat dissipation block 2 9 gradually becomes smaller from top to bottom, and will not affect the heat dissipation effect of the diffuser plate 2.

[0023] A rotating shaft 12 is rotatably connected to the side wall of one end of the mounting frame 1, and a fan blade 13 is fixedly installed at the inner end of the rotating shaft 12. The fan blade 13 is located at one end of the heat sink 15. The rotating shaft 12 is provided with two, and the rotating shaft 12 is rotatably connected to the side wall of the mounting frame 1 through a bearing. A pulley 14 is fixedly installed on the outer wall of the rotating shaft 12, and a belt 15 is connected for transmission between the two pulleys 14. A silent motor 16 is fixedly installed on the outer wall of one end of the mounting frame 1, and the output end of the silent motor 16 is fixedly connected to the outer end of one of the rotating shafts 12 through a coupling. When the silent motor 16 is started, it will drive one of the rotating shafts 12 to rotate, and the rotating shaft 12 drives the other rotating shaft 12 to rotate through the pulley 14 and the belt 15. When the rotating shaft 12 rotates, it will drive the fan blade 13 to rotate, blowing air to the heat sink 15 and the heat sink 29, and quickly taking away the heat from the heat sink 15 and the heat sink 29.

[0024] A through hole 7 is provided at the inner end of the heat dissipation block 1 5, and grooves 8 are provided on the inner walls at the upper and lower ends of the through hole 7. A heat dissipation groove 6 is provided on the outer walls at the left and right ends of the heat dissipation block 1 5. The through hole 7, the groove 8, and the heat dissipation groove 6 increase the contact area with the air and also increase the contact area with the wind generated when the fan blades 13 rotate, thereby improving the heat dissipation effect. Air ducts 10 are provided at the left and right ends of the heat dissipation block 2 9, and heat dissipation grooves 2 11 are provided on the upper and lower sides of the front and rear ends of the heat dissipation block 2 9 to facilitate the passage of wind and accelerate the removal of heat from the heat dissipation block 2 9.

[0025] A strong light-conducting LED diffusion plate comprises the above-mentioned heat dissipation mechanism.

[0026] In actual use, by separately installing the diffusion plate 2 and the light guide plate 3, installing the first heat sink 5 and the second heat sink 9 between the diffusion plate 2 and the light guide plate 3, and installing the fan blade 13 on one side thereof, when the fan blade 13 rotates, it blows air on the first heat sink 5 and the second heat sink 9, quickly taking away the heat on the first heat sink 5 and the second heat sink 9, achieving the effect of dissipating heat from the diffusion plate 2.

[0027] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation mechanism, comprising: Installation frame (1), heat dissipation holes (4) are provided at both the left and right ends of the installation frame (1), and it is characterized in that: a number of first heat dissipation blocks (5) are evenly and fixedly installed at the inner end of the installation frame (1), and a number of second heat dissipation blocks (9) are evenly installed at the upper end of each first heat dissipation block (5); A rotating shaft (12) is rotatably connected to the side wall of one end of the installation frame (1), and a fan blade (13) is fixedly installed at the inner end of the rotating shaft (12), and the fan blade (13) is located at one end of the first heat dissipation block (5).

2. The heat dissipation mechanism according to claim 1, wherein: A diffusion plate (2) and a light guide plate (3) are respectively installed at the upper end of the installation frame (1), the diffusion plate (2) and the light guide plate (3) are respectively located at the upper and lower ends of the first heat dissipation block (5), and the upper end of the second heat dissipation block (9) is in contact with the lower end of the diffusion plate (2).

3. A heat dissipation mechanism according to claim 2, characterized in that: A through hole (7) is provided at the inner end of the first heat dissipation block (5), grooves (8) are provided on the inner walls at the upper and lower ends of the through hole (7), and first heat dissipation grooves (6) are provided on the outer walls at the left and right ends of the first heat dissipation block (5).

4. The heat dissipation mechanism according to claim 3, characterized in that: The second heat dissipation block (9) is in the shape of a quadrangular frustum, and the size of the upper end is larger than that of the lower end.

5. The heat dissipation mechanism according to claim 4, characterized in that: Air ducts (10) are provided in the left and right end directions of the second heat dissipation block (9), and second heat dissipation grooves (11) are provided on the upper and lower sides of the front and rear ends of the second heat dissipation block (9).

6. The heat dissipation mechanism according to claim 5, characterized in that: There are two rotating shafts (12), the rotating shafts (12) are rotatably connected to the side wall of the installation frame (1) through bearings, pulley wheels (14) are fixedly installed on the outer walls of the rotating shafts (12), and a belt (15) is drivingly connected between the two pulley wheels (14).

7. A heat dissipation mechanism according to claim 6, characterized in that: A silent motor (16) is fixedly installed on the outer wall of one end of the installation frame (1), and the output end of the silent motor (16) is fixedly connected to the outer end of one of the rotating shafts (12) through a coupling.

8. A highly light-conducting LED diffuser plate, characterized in that: It includes the heat dissipation mechanism according to any one of the above claims 1-7.

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