Light guide plate assembly

Abstract

The utility model provides a light guide plate assembly which comprises a protection plate, a supporting column is vertically fixed to the top of the protection plate, heat conduction silica gel is fixed to the top of the supporting column, a light guide plate is tightly attached to the top of the heat conduction silica gel, a bottom frame is fixed to the middle of the bottom end of the protection plate, and outer frames are fixed to the front end, the rear end, the left end and the right end of the outer wall of the bottom frame. A cooling fan is fixed to the middle of the bottom frame, extending plates are embedded into the outer frames, sliding plates are embedded into the extending plates, top pressing plates are vertically embedded into the tops of the sliding plates, adjusting bolts are vertically embedded into the lower portions of the outer sides of the sliding plates, and fixing bolts are embedded into the outer sides of the outer frames. The upper end and the lower end of the light guide plate can be rapidly cooled at the same time, the cooling effect is good, the front end, the rear end, the left end and the right end of the light guide plate can be limited and fixed at the same time, the fixing effect of the light guide plate is good, and the stability of the light guide plate in the working process is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical element equipment technical field especially relates to a light guide plate subassembly. BACKGROUND

[0002] The light guide plate is made of optical grade acrylic / PC plate material, and then high-tech material with extremely high refractive index and no light absorption is used to engrave light guide points on the bottom surface of the optical grade acrylic plate material by laser engraving, V-shaped cross grid engraving and UV screen printing technology. The optical grade acrylic plate material absorbs the light emitted from the lamp and stays on the surface of the optical grade acrylic plate material. When the light hits each light guide point, the reflected light will spread to each angle, and then break the reflection condition to be emitted from the front surface of the light guide plate. Through various light guide points with different densities and sizes, the light guide plate can emit light uniformly. The purpose of the reflecting sheet is to reflect the light exposed on the bottom surface back to the light guide plate to improve the use efficiency of light. Under the condition of the same area luminance, the light emitting efficiency is high and the power consumption is low. The single-sided microstructure array light guide plate is generally made by extrusion molding process. The design principle of the light guide plate is derived from the liquid crystal display screen of a notebook computer. It is a high-tech product that converts linear light source into area light source. The optical grade acrylic (PMMA) / PC is used as the base material. Through the backlight module technology of LCD display screen and notebook computer, the high light transmittance of the light guide point, and the calculation of the light guide point by the computer, the light guide plate is made into a product with area light source uniformity by light refraction. However, the existing light guide plate is very easy to be affected by overheating during use, which affects its normal use or damages it. The light guide plate cannot be quickly cooled, and the use is not convenient. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at solving the problems in the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A light guide plate assembly, comprising a protective plate, a support column is fixed vertically on the top of the protective plate, a heat-conducting silica gel is fixed on the top of the support column, a light guide plate is tightly attached to the top of the heat-conducting silica gel, a bottom frame is fixed at the bottom end of the protective plate, an outer frame is fixed at the front, back, left and right ends of the outer wall of the bottom frame, a cooling fan is fixed at the middle of the bottom frame, an extension plate is embedded in the inner part of the outer frame, a sliding plate is embedded in the inner part of the extension plate, a top pressing plate is vertically embedded in the top of the sliding plate, an adjusting bolt is vertically embedded in the outer side of the sliding plate, and a fixing bolt is embedded in the outer side of the outer frame.

[0006] Preferably, the outer wall of the extension plate is tightly attached to the outer frame, the extension plate slides horizontally left and right and forward and backward in the outer frame, and one end of the fixing bolt is tightly attached to the outer wall of the extension plate.

[0007] Preferably, the upper part of the adjusting bolt is embedded in the interior of the sliding plate, and the outer wall of the adjusting bolt is connected with the inner wall of the sliding plate through threads.

[0008] Preferably, the outer wall of the sliding plate is close to the inner wall of the extension plate, and the sliding plate is vertically lifted up and down in the extension plate.

[0009] Preferably, the top and the front, rear, left and right ends of the bottom frame are provided with exhaust ports, and the exhaust ports of the front, rear, left and right ends of the bottom frame are communicated with the interior of the outer frame.

[0010] Preferably, the interiors of the extension plate and the sliding plate are provided with hollow channels communicated with each other, the interior of the top pressing plate is provided with an exhaust hole, and the other end of the hollow channel of the sliding plate is communicated with the exhaust hole.

[0011] 1. When the light guide plate is fixed between the four extension plates, the air flow generated by the heat dissipation fan moves upward and directly blows to the bottom of the light guide plate, and then the air flow flows along the bottom of the light guide plate to quickly heat the bottom of the light guide plate, and the air flow also enters the outer frame through the exhaust port on the side, and then enters the hollow channel of the extension plate and the sliding plate and is discharged through the exhaust hole obliquely arranged in the interior of the top pressing plate to blow to the upper surface of the light guide plate, so that the upper surface and the lower surface of the light guide plate are simultaneously heat-dissipated, the heat dissipation effect is good, and the use is more convenient.

[0012] 2. Since the front, rear, left and right ends of the light guide plate are provided with the extension plates, the extension plates are pulled forward and backward and left and right to move forward and backward in the outer frame, so that the outer wall of the light guide plate is close to the four extension plates, the fixing bolts on the outer frame are screwed to abut against the extension plates to limit the extension plates, then the adjusting bolts below the extension plates are screwed to move in the sliding plate, so that the sliding plate moves downward along the upper part of the extension plate, and the top pressing plate is close to the outer side of the upper surface of the light guide plate to fix the light guide plate, and the stability of the light guide plate during work is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a front view of the overall structure in the utility model;

[0014] Figure 2 It is a back view of the overall structure in the utility model;

[0015] Figure 3 It is a partial structure diagram of the protective plate in the utility model;

[0016] Figure 4 It is a right side sectional view of the overall structure in the utility model;

[0017] Figure 5The utility model discloses an extension plate local structure bottom surface explosion schematic view.

[0018] Legend:

[0019] Protective plate 1, support column 101, heat conduction silica gel 102, light guide plate 103, bottom frame 2, outer frame 201, heat dissipation fan 202, extension plate 203, sliding plate 204, top pressing plate 205, adjusting bolt 206, fixed bolt 207. Specific implementation

[0020] Example 1, reference Figures 1-5 A light guide plate assembly, including protective plate 1, the top of protective plate 1 is vertically fixed with support column 101, the top of support column 101 is fixed with heat conduction silica gel 102, the top of heat conduction silica gel 102 is closely attached with light guide plate 103, the bottom end of protective plate 1 is fixed with bottom frame 2 in the middle, the front and rear and left and right ends of the outer wall of bottom frame 2 are all fixed with outer frame 201, the middle of bottom frame 2 is fixed with heat dissipation fan 202, the inside of outer frame 201 is all embedded with extension plate 203, the inside of extension plate 203 is all embedded with sliding plate 204, the top of sliding plate 204 is vertically embedded with top pressing plate 205, the outside of sliding plate 204 is vertically embedded with adjusting bolt 206 below, the outside of outer frame 201 is embedded with fixed bolt 207.

[0021] The outer wall of extension plate 203 is closely attached with outer frame 201, and extension plate 203 slides in outer frame 201 in horizontal direction left and right, front and back, and one end of fixed bolt 207 is closely attached with the outer wall of extension plate 203;

[0022] Since the front and rear and left and right ends of light guide plate 103 are all provided with extension plate 203, by pulling extension plate 203 in front and back and left and right, extension plate 203 moves in front and back in outer frame 201, so that the outer wall of light guide plate 103 is closely attached between four extension plates 204, and then fixed bolt 207 on outer frame 201 is screwed to closely attach extension plate 203 to limit extension plate, further improve the stability of light guide plate 103 in the working process;

[0023] The upper portion of adjusting bolt 206 is embedded in the inside of sliding plate 204, and the outer wall of adjusting bolt 206 is connected with the inner wall of sliding plate 204 through threads;

[0024] The outer wall of sliding plate 204 is closely attached with the inner wall of extension plate 203, and sliding plate 204 rises and falls in extension plate 203 in vertical direction up and down;

[0025] When the outer wall of the light plate 103 is tightly attached between the four extension plates 204, the adjusting bolt 206 under the extension plate 203 is twisted to move in the sliding plate 204, so that the sliding plate 204 is lowered along the upper extension plate 203, and the top pressing plate 205 is tightly attached to the outer side of the upper surface of the light guide plate 103, so that the fixing effect of the light guide plate 103 is better, and the stability of the light guide plate 103 during operation is further improved.

[0026] Embodiment 2, different from embodiment 1, in this embodiment, the top and the front, rear, left and right ends of the bottom frame 2 are provided with exhaust ports, and the exhaust ports of the front, rear, left and right ends of the bottom frame 2 are in communication with the inside of the outer frame 201.

[0027] The inside of the extension plate 203 and the sliding plate 204 is provided with a hollow channel in communication, and the inside of the top pressing plate 205 is provided with an exhaust hole in an inclined manner, and the other end of the hollow channel of the sliding plate 204 is in communication with the exhaust hole.

[0028] When the light guide plate 103 is fixed between the four extension plates 203, the airflow generated by the cooling fan 202 moves upward and directly blows to the bottom of the light guide plate 103, and then the airflow flows along the bottom of the light guide plate 103 to quickly cool the bottom of the light guide plate 103 and the heat-absorbing heat-conducting silica gel 102.

[0029] The airflow generated by the cooling fan 202 also enters the outer frame 201 through the side exhaust port, and then enters the hollow channel of the extension plate 203 and the sliding plate 204, and then enters the exhaust hole in the inside of the top pressing plate 205 in an inclined manner, and is blown to the upper surface of the light guide plate 103, so that the upper surface and the lower surface of the light guide plate 103 are simultaneously cooled, the cooling effect is better, and the use is more convenient.

[0030] The above is only the preferred embodiment of the present application, it should be pointed out that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, these should also be considered as the protection scope of the present application, these will not affect the effect and practicality of the present application.

Claims

1. A light guide plate assembly, comprising a protective plate (1), characterized in that, The top of the protective plate (1) is vertically fixed with a support column (101), the top of the support column (101) is fixed with a thermally conductive silicone (102), the top of the thermally conductive silicone (102) is closely attached to a light guide plate (103), the bottom of the protective plate (1) is fixed with a bottom frame (2), the front, back and left and right ends of the outer wall of the bottom frame (2) are all fixed with an outer frame (201), the middle of the bottom frame (2) is fixed with a cooling fan (202), the inside of the outer frame (201) is embedded with an extension plate (203), the inside of the extension plate (203) is embedded with a sliding plate (204), the top of the sliding plate (204) is vertically embedded with a top pressure plate (205), the lower outer side of the sliding plate (204) is vertically embedded with an adjusting bolt (206), and the outer side of the outer frame (201) is embedded with a fixing bolt (207).

2. The light guide plate assembly according to claim 1, characterized in that, The outer wall of the extension plate (203) is closely attached to the outer frame (201). The extension plate (203) slides horizontally left and right and back and forth in the outer frame (201). One end of the fixing bolt (207) is closely attached to the outer wall of the extension plate (203).

3. The light guide plate assembly according to claim 1, characterized in that, The upper part of the adjusting bolt (206) is embedded inside the sliding plate (204), and the outer wall of the adjusting bolt (206) is connected to the inner wall of the sliding plate (204) by threads.

4. The light guide plate assembly according to claim 1, characterized in that, The outer wall of the sliding plate (204) is closely attached to the inner wall of the extension plate (203), and the sliding plate (204) moves up and down vertically in the extension plate (203).

5. The light guide plate assembly according to claim 1, characterized in that, The bottom frame (2) has vents at its top, front, back, left and right ends, and the vents at the front, back, left and right ends of the bottom frame (2) are connected to the interior of the outer frame (201).

6. The light guide plate assembly according to claim 1, characterized in that, Both the extension plate (203) and the sliding plate (204) are provided with interconnected hollow channels inside, and the top pressure plate (205) is provided with an inclined exhaust hole inside. The other end of the hollow channel of the sliding plate (204) is connected to the exhaust hole.

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