CN211061823U - Smart Blackboard Backlight Module and Smart Blackboard - Google Patents

Abstract

The utility model provides a smart blackboard backlight module and a smart blackboard. By replacing the traditional hard material with an aluminum bottom plate and the combination of a reinforcing structure, the weight of the backboard is reduced and the strength of the backboard is improved; secondly, the strength of the backboard is enhanced; The side of the reinforcing rib of the structure is provided with an electrical box assembly structure suitable for cooperating with the electrical box of the smart blackboard, so that the electrical box can be fixed on the reinforcing rib to avoid punching holes in the direction of the diffuser plate diaphragm on the back panel , so that the surface of the diffuser plate diaphragm will not be polluted by impurities, thus ensuring that no shadow will appear when the display device is used, and enhancing the display effect.

Description

Smart Blackboard Backlight Module and Smart Blackboard

technical field

The utility model relates to the field of educational equipment, in particular to a smart blackboard backlight module and a smart blackboard.

Background technique

In recent years, with the advancement of educational informatization, smart blackboards have been more and more popularized and used in educational institutions such as schools. The smart blackboard not only has the function of writing, but also has the function of information to display. At present, the display function of the smart blackboard is realized by a liquid crystal display device. Liquid crystal display devices are developing rapidly, but the liquid crystal itself cannot emit light, and the displayed graphics or characters are the result of light modulation by the backlight module. At present, according to the distribution position of the light source, the backlight module can be divided into two types: side light type and direct type: the structure of the side light type backlight module means that the light source is located on one side of the module, and the light is transmitted through the light guide plate and then passes through the optical film material. Enter the liquid crystal glass; the direct type backlight module structure means that the light source is located below the module, and the light enters the liquid crystal glass through the optical film after being diffused by the diffuser plate. Among them, the direct type backlight module has been widely used due to its high brightness, low solution cost, and easy local control of light.

At present, when the manufacturer processes and manufactures the smart blackboard, there are two fixing methods for the main board of the smart blackboard display device and the backplane of the direct-type backlight module. The screw holes are used to fix components such as the main board of the smart blackboard on the backplane through screws. However, the surface of the backplane is painted, and the paint at the screw holes will fall on the diffuser plate diaphragm behind the backplane during the connection between the screws and the backplane, resulting in shadows when the liquid crystal display device is in use, thus affecting the display effect; another One way of fixing is: an electrical box is processed on the outside of the main board, a U-shaped protrusion is arranged on the surface of the electrical box, and a U-shaped guide rail matching the U-shaped protrusion is arranged on the surface of the backplane, and the electrical box is fixed on the backplane by plugging and unplugging. superior. However, the backplane of the factory direct-type backlight module is usually processed by CNC machining or stamping. The position of the U-shaped protrusion or screw hole has been determined during the preparation process of the backplane, so the fixed position of the electrical box or the main board is limited. ; In addition, the processing method of the backplane of the direct-type backlight module restricts the backplane to only use hard materials such as iron, and the weight of the products produced is relatively large, thereby increasing the weight of the entire smart blackboard.

Utility model content

Therefore, the technical problem to be solved by the present invention is to overcome the defects that the existing backplane affects the display effect of the smart blackboard and the weight is relatively large, thereby providing a smart blackboard backlight module and a smart blackboard.

The utility model provides a smart blackboard backlight module, comprising:

Aluminum base plate;

a support frame, arranged on the frame of the aluminum base plate;

a light source assembly, disposed in the area enclosed by the support frame, and connected to the aluminum base plate by threaded fasteners; and

A reinforcing structure is provided on the side of the aluminum base plate away from the light source assembly to reinforce the aluminum base plate, wherein the reinforcing structure includes a plurality of reinforcing ribs arranged in connection with each other, and the reinforcing ribs are arranged on the side of the aluminum base plate. The side is provided with an electrical box assembly structure suitable for matching with the electrical box of the smart blackboard.

Further, a plurality of U-shaped protrusions are provided on the side of the electrical box of the smart blackboard, and the electrical box assembly structure on the reinforcing rib is a U-shaped guide rail suitable for matching with the U-shaped protrusions. .

Further, a plurality of reinforcing ribs connected to each other in the reinforcing structure are in a well-shaped shape.

Further, a plurality of the reinforcing ribs that are connected to each other encloses a square installation frame that is adapted to the size of the electrical box, and the electrical box is installed in the square installation frame.

Further, the reinforcing rib is fastened on the support frame and abuts with the aluminum bottom plate to support and strengthen the aluminum bottom plate.

Further, the smart blackboard backlight module further includes a backlight assembly disposed on the side of the light source assembly away from the aluminum base plate.

Further, the backlight assembly includes a reflective film, a diffuser plate, a diffuser film and a brightness enhancement film arranged in sequence, the aluminum base plate, the light source assembly, the reflective film, the diffuser plate, the diffuser film, The brightness enhancement films are stacked on each other.

Further, a plurality of support columns are also arranged on the aluminum base plate to provide support for the backlight assembly.

Further, the light source components are several light bars.

The utility model also provides a smart blackboard, which adopts the above-mentioned smart blackboard backlight module.

The technical scheme of the utility model has the following advantages:

1. In the smart blackboard backlight module and smart blackboard provided by the present utility model, by replacing the traditional hard material with the combination of an aluminum bottom plate and a reinforced structure, while reducing the weight of the backboard, the The strength of the back plate; secondly, the side of the reinforcing rib is provided with an electrical box assembly structure suitable for matching with the electrical box of the smart blackboard, so that the electrical box can be fixed on the reinforcing rib, avoiding the need for The punching holes on the back panel towards the diffuser plate diaphragm prevent the surface of the diffuser plate diaphragm from being polluted by impurities, thus ensuring that the display device does not appear shadows during use and enhancing the display effect.

2. In the smart blackboard backlight module and the smart blackboard provided by the present invention, the light source assembly is arranged in the area enclosed by the support frame, and is connected with the aluminum base plate by threaded fasteners. Due to the low hardness of the aluminum iron plate, the position of the screw hole can be set as required, and then the light source assembly is connected with the light source assembly by screws, thus realizing the flexibility of the arrangement of the light source assembly.

3. In the smart blackboard backlight module and the smart blackboard provided by the present invention, several reinforcing ribs connected to each other in the reinforcing structure are in a well-shaped shape, and the reinforcing structure can change or adjust the connection mode of the reinforcing ribs as required, and then Change the shape of the reinforcement structure, and then change or adjust the position of the electrical box, so it has a certain flexibility.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the following descriptions The accompanying drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

Fig. 1 is the rear view structure schematic diagram of the backplane of the backlight module of the smart blackboard in the embodiment of the present invention;

2 is a schematic structural diagram of the cooperation between reinforcing ribs and an electrical box in the smart blackboard backlight module shown in FIG. 1;

3 is a schematic three-dimensional structure diagram of the smart blackboard backlight module shown in FIG. 1;

FIG. 4 is a schematic structural diagram of the cooperation between the support column and the light bar in the backlight module of the smart blackboard shown in FIG. 1 .

Description of drawings:

1-Aluminum bottom plate; 11-Support column; 2-Support frame; 3-Reinforcement structure; 31-Reinforcing rib; 32-U-shaped guide rail; 4-Light source assembly; 41-Light bar; 5-Backlight assembly; box.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, only In order to facilitate the description of the present invention and simplify the description, it is not indicated or implied that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection, or indirect connection through an intermediate medium, or internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as there is no conflict with each other.

As shown in FIG. 1 , the present embodiment provides a smart blackboard backlight module, including an aluminum base plate 1 ; a support frame 2 , which is arranged on the frame of the aluminum base plate 1 ; inside, and connected with the aluminum base plate 1 by threaded fasteners; and a reinforcement structure 3, which is provided on the side of the aluminum base plate 1 away from the light source assembly 4 to strengthen the aluminum base plate 1, wherein the reinforcement structure 3 includes interconnection. Several reinforcing ribs 31 are provided, and the reinforcing ribs 31 are provided with an electrical box assembly structure suitable for matching with the electrical box 6 of the smart blackboard on the side of the reinforcing ribs 31 .

The above-mentioned smart blackboard backlight module, by replacing the traditional hard material with the combination of the aluminum base plate 1 and the reinforcing structure, reduces the weight of the backboard and at the same time improves the strength of the backboard; secondly, the reinforcing ribs 31 are arranged on the side There is an electrical box assembly structure suitable for matching with the electrical box 6 of the smart blackboard, so that the electrical box 6 can be fixed on the reinforcing rib 31, avoiding the punching in the direction of the diffuser plate diaphragm on the back plate, so that the diffusion The surface of the plate diaphragm will not be polluted by impurities, so as to ensure that no shadow occurs when the display device is used, and the display effect is ensured.

As a specific embodiment, as shown in FIG. 2 , several U-shaped protrusions are provided on the side of the electrical box 6 of the smart blackboard, and the electrical box assembly structure on the reinforcing rib 31 is a U-shaped protrusion suitable for matching with the U-shaped protrusion. Then, when the electrical box 6 is installed, only the U-shaped protrusions and the U-shaped guide rails 32 are docked and matched to realize the installation and cooperation of the electrical box, which brings convenience to the installation of the electrical box 6 .

Further, several reinforcing ribs 31 connected to each other in the reinforcing structure 3 are in a well-shaped shape. It should be understood that the connection of several reinforcing ribs 31 includes but is not limited to a well-shaped shape, and the reinforcing structure 3 can change or adjust the connection mode of the reinforcing ribs 31 as required, thereby changing the shape of the reinforcing structure 3, and then changing or adjusting the electrical box 6. Therefore, it has certain flexibility, which reduces the difficulty of designing and manufacturing the smart blackboard.

Further, a plurality of reinforcing ribs 31 connected to each other enclose a square installation frame matching the size of the electrical box 6, and the electrical box 6 is installed in the square installation frame.

Further, the reinforcing rib 31 is fastened on the support frame 2 and abuts against the aluminum bottom plate 1 to support and strengthen the aluminum bottom plate 1 .

Specifically, as shown in FIG. 3 , the smart blackboard backlight module further includes a backlight assembly 5 disposed on the side of the light source assembly 4 away from the aluminum base plate 1 . Further, the backlight assembly 5 includes a reflective film, a diffuser plate, a diffuser film and a brightness enhancement film arranged in sequence.

Further, as shown in FIG. 4 , a plurality of support columns 11 are also arranged on the aluminum base plate 1 to provide support for the backlight assembly 5 .

Further, the light source assembly 4 is a plurality of light bars 41 . Due to the low hardness of the aluminum iron plate, the position of the screw hole can be set as required, and then the light source assembly 4 is connected with the light source assembly 4 by screws, thus realizing the flexibility of the arrangement of the light source assembly 4 . As shown in FIG. 4 , a plurality of light bars 41 are evenly fixed on the bottom plate.

The present invention also provides a smart blackboard, which adopts the above-mentioned smart blackboard backlight module, and furthermore, the advantages of the smart blackboard backlight module in this embodiment should also be provided by the smart blackboard in this embodiment, which will not be repeated here.

Obviously, the above-mentioned embodiments are only examples for clear description, and are not intended to limit the implementation manner. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. And the obvious changes or changes derived from this are still within the protection scope of the present invention.

Claims (10)

1. a wisdom blackboard backlight module, is characterized in that, comprises: Aluminum base plate; a support frame, arranged on the frame of the aluminum base plate; a light source assembly, disposed in the area enclosed by the support frame, and connected to the aluminum base plate by threaded fasteners; and A reinforcing structure is provided on the side of the aluminum base plate away from the light source assembly to reinforce the aluminum base plate, wherein the reinforcing structure includes a plurality of reinforcing ribs arranged in connection with each other, and the reinforcing ribs are arranged on the side of the aluminum base plate. The side is provided with an electrical box assembly structure suitable for matching with the electrical box of the smart blackboard. 2 . The smart blackboard backlight module according to claim 1 , wherein a plurality of U-shaped protrusions are formed on the side of the electrical box of the smart blackboard, and the electrical box on the reinforcing rib is assembled with the electrical box. 3 . The structure is a U-shaped guide rail suitable for matching with the U-shaped protrusion. 3 . The smart blackboard backlight module according to claim 1 , wherein a plurality of reinforcing ribs connected to each other in the reinforcing structure are in a well-shaped shape. 4 . 4 . The smart blackboard backlight module according to claim 3 , wherein a plurality of the reinforcing ribs that are connected to each other encloses a square mounting frame that is adapted to the size of the electrical box, and the electrical box is mounted on the electrical box. 5 . The square mounting box. 5. The smart blackboard backlight module according to any one of claims 1 to 4, wherein the reinforcing rib is fastened on the support frame, and abuts with the aluminum bottom plate to align the The aluminum base plate is used for support and reinforcement. 6 . The smart blackboard backlight module according to claim 1 , wherein the smart blackboard backlight module further comprises a backlight disposed on the side of the light source assembly away from the aluminum base plate. 7 . components. 7 . The smart blackboard backlight module according to claim 6 , wherein the backlight assembly comprises a reflective film, a diffusion plate, a diffusion film and a brightness enhancement film arranged in sequence, the aluminum base plate, the light source assembly , The reflective film, the diffuser plate, the diffuser film, and the brightness enhancement film are stacked on each other. 8 . The smart blackboard backlight module according to claim 7 , further comprising a plurality of support columns arranged on the aluminum base plate to provide support for the backlight assembly. 9 . 9 . The smart blackboard backlight module according to claim 7 , wherein the light source components are a plurality of light bars. 10 . 10. A smart blackboard, characterized in that the smart blackboard backlight module according to any one of claims 1-9 is adopted.

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