CN212694607U

CN212694607U - Large-format high-definition intelligent blackboard

Info

Publication number: CN212694607U
Application number: CN202020240666.5U
Authority: CN
Inventors: 刘泽江; 牛立军
Original assignee: Suzhou Youen Information Technology Co ltd
Current assignee: Suzhou Youen Information Technology Co ltd
Priority date: 2020-03-02
Filing date: 2020-03-02
Publication date: 2021-03-12
Anticipated expiration: 2030-03-02

Abstract

The utility model discloses a large-format high-definition intelligent blackboard, which comprises at least one writing board and at least one interactive board, wherein the writing board and the interactive board are respectively installed and fixed through respective outer frame frames; the interactive board comprises a writing panel, a touch control film, a liquid crystal panel and a backlight module, wherein the touch control film is positioned between the writing panel and the liquid crystal panel, and the backlight module is positioned on one side of the liquid crystal panel, which is opposite to the touch control film; the backlight module further comprises a substrate, an LED lamp strip, a light guide plate, a light homogenizing film and reflecting paper, wherein the LED elements are arranged on the surface of one side of the circuit board at equal intervals; the substrate comprises a first aluminum plate layer, a second aluminum plate layer and a honeycomb core material layer positioned between the first aluminum plate layer and the second aluminum plate layer. The utility model discloses big breadth high definition intelligence blackboard can guarantee good mechanical properties when attenuate basic thickness, can alleviate the weight of base plate again to alleviate the weight of the equipment that uses this invention backlight unit greatly, be convenient for transportation and installation.

Description

Large-format high-definition intelligent blackboard

Technical Field

The utility model relates to a big breadth high definition intelligence blackboard belongs to education and equips technical field.

Background

The blackboard in the classroom is the teaching tool that the frequency of use is the highest of teacher, and along with the popularization of multimedia teaching in recent years, many schools have also had the multimedia classroom, and the teacher can give the student with PPT and video mode and give class, carries out teaching or interdynamic. The display screen is often integrated into the blackboard as a whole by the existing blackboard, which is not beneficial to the weight reduction, thinning and installation of the weight of the blackboard.

Disclosure of Invention

The utility model aims at providing a big breadth high definition intelligence blackboard, this big breadth high definition intelligence blackboard can guarantee good mechanical properties when attenuate basic thickness, can alleviate the weight of base plate again to alleviate the weight of the equipment that uses the backlight unit of the invention greatly, be convenient for transportation and installation.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a large-format high-definition intelligent blackboard comprises at least one writing board and at least one interactive board, wherein the writing board and the interactive board are respectively installed and fixed through respective outer frame frames;

the interactive board comprises a writing panel, a touch control film, a liquid crystal panel and a backlight module, wherein the touch control film is positioned between the writing panel and the liquid crystal panel, and the backlight module is positioned on one side of the liquid crystal panel, which is opposite to the touch control film;

the backlight module further comprises a substrate, an LED lamp strip, a light guide plate, a light homogenizing film and reflecting paper, wherein the reflecting paper is positioned between the substrate and the light guide plate, the light homogenizing film is positioned on the surface of one side of the light guide plate opposite to the substrate, the LED lamp strip is respectively arranged on the upper side and the lower side of the light guide plate and is respectively arranged on the substrate through a supporting strip;

the LED lamp strip comprises a plurality of LED elements and a circuit board, the LED elements are arranged on the surface of one side of the circuit board at equal intervals, the surface of the other side of the circuit board is connected with the supporting strips in an adhesive mode, and one side of the circuit board provided with the LED elements is arranged face to face with the side surface of the light guide plate;

the lower end of the supporting strip is provided with a first flanging part which is bent back to one side opposite to the light guide plate, the lower surface of the first flanging part is in contact with the surface of the substrate, the first flanging part is fixedly connected with the substrate, and the supporting strip is an aluminum supporting strip;

the substrate comprises a first aluminum plate layer, a second aluminum plate layer and a honeycomb core material layer positioned between the first aluminum plate layer and the second aluminum plate layer.

The further improved scheme in the technical scheme is as follows:

1. in the scheme, the thicknesses of the first aluminum plate layer and the second aluminum plate layer are both 0.5 mm-5 mm.

2. In the scheme, the thickness of the core material layer is 3 mm-15 mm.

3. In the above scheme, the upper end of the supporting bar is provided with a second flanging part which is bent towards one side of the light guide plate, and the lower surface of the second flanging part is in contact connection with the light-equalizing film above the light guide plate.

4. In the scheme, the left side and the right side of the light guide plate are respectively provided with a pressing strip, one end of each pressing strip is arranged on the base plate, and the other end of each pressing strip is in contact connection with the light equalizing film on the light guide plate.

5. In the scheme, the diffusion film and the brightness enhancement film are stacked above the light-homogenizing film.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

1. the utility model discloses big breadth high definition intelligence blackboard, it is through the setting of aluminium support bar and first turn-over portion, can be with the heat of LED lamp area on the base plate of large tracts of land continuously, quick transfer, realized producing the quick, even heat dissipation of heat to LED lamp area, avoid using equipment of the backlight module of the invention, such as touch-control blackboard influence other device performances because the heat dissipation is not smooth, can also reduce the use of other heat dissipation modules simultaneously, not only save the cost, but also can attenuate the thickness of equipment, optimize the user experience of product; furthermore, through the arrangement of the second flanging part, the supporting strip has the effect of limiting the light guide plate and the optical membrane, the positioning of the light guide plate and the optical membrane is realized under the condition of not increasing any cost, and the production efficiency is improved.

2. The utility model discloses big breadth high definition intelligence blackboard, its setting through the base plate structure and the selection of material both can guarantee good mechanical properties when attenuate basic thickness, can alleviate the weight of base plate again to alleviate the weight of the equipment that uses the backlight unit of the invention greatly, be convenient for transport and installation, can also regard the base plate of big breadth as powerful heating panel, be convenient for with the heat transfer of each heat dissipation device in front of the base plate rapidly effluvium after the base plate.

Drawings

FIG. 1 is a schematic structural view of a large-format high-definition intelligent blackboard of the present invention;

FIG. 2 is a schematic structural view of a backlight module in a large-format high-definition intelligent blackboard of the present invention;

FIG. 3 is a sectional view of a partial structure of a large-format high-definition intelligent blackboard according to the present invention;

FIG. 4 is a side view of the local structure of the large-format high-definition intelligent blackboard of the present invention;

FIG. 5 is a side view of the local structure of the large-format high-definition intelligent blackboard of the present invention;

figure 6 is the utility model discloses big breadth high definition intelligence blackboard local structure side view three.

In the above drawings: 1. a writing board; 1b1, a first aluminum plate layer; 1b2, a second aluminum sheet layer; 1b3, core material layer; 2. an interactive plate; 3. an outer frame; 1a, a writing panel; 2a, a touch control film; 3a, a liquid crystal panel; 4a, a backlight module; 1b, a substrate; 2b, an LED lamp strip; 2b1, LED element; 2b2, circuit board; 3b, a light guide plate; 4b, a light homogenizing film; 5b, reflective paper; 6b, supporting strips; 6b1, a first flanging part; 6b2, second flanging part; 7b, a diffusion film; 8b, a brightness enhancement film; 10b, pressing strips.

Detailed Description

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1: a large-format high-definition intelligent blackboard comprises at least one writing board 1 and at least one interactive board 2, wherein the writing board 1 and the interactive board 2 are respectively installed and fixed through respective outer frame frames 3;

the interactive plate 2 comprises a writing panel 1a, a touch film 2a, a liquid crystal panel 3a and a backlight module 4a, wherein the touch film 2a is positioned between the writing panel 1a and the liquid crystal panel 3a, and the backlight module 4a is positioned on one side of the liquid crystal panel 3a opposite to the touch film 2 a;

the backlight module 4a further comprises a substrate 1b, an LED lamp strip 2b, a light guide plate 3b, a light homogenizing film 4b and a piece of reflective paper 5b, wherein the reflective paper 5b is positioned between the substrate 1b and the light guide plate 3b, the light homogenizing film 4b is positioned on the surface of one side of the light guide plate 3b opposite to the substrate 1b, the LED lamp strip 2b is respectively arranged on the upper side and the lower side of the light guide plate 3b, and is respectively arranged on the substrate 1b through a supporting strip 6 b;

the LED lamp strip 2b comprises a plurality of LED elements 2b1 and a circuit board 2b2, the LED elements 2b1 are mounted on one side surface of the circuit board 2b2 at equal intervals, the other side surface of the circuit board 2b2 is connected with a supporting strip 6b in an adhering mode, and one side of the circuit board 2b2 on which the LED elements 2b1 are mounted is arranged in a face-to-face mode with the side surface of the light guide plate 3 b;

the lower end of the supporting strip 6b is provided with a first flanging part 6b1 bent towards one side opposite to the light guide plate 3b, the lower surface of the first flanging part 6b1 is in contact with the surface of the substrate 1b, the first flanging part 6b1 is fixedly connected with the substrate 1b, and the supporting strip 6b is an aluminum supporting strip;

the base plate 1b includes a first aluminum plate layer 1b1, a second aluminum plate layer 1b2, and a honeycomb core layer 1b3 between the first aluminum plate layer 1b1 and the second aluminum plate layer 1b 2.

The thicknesses of the first aluminum plate layer 1b1 and the second aluminum plate layer 1b2 are both 4.5 mm; the thickness of the core material layer 1b3 was 6 mm; the upper end of the supporting strip 6b has a second flanging part 6b2 bent toward the light guide plate 3b, and the lower surface of the second flanging part 6b2 is in contact connection with the light-equalizing film 4b above the light guide plate 3 b.

Example 2: a large-format high-definition intelligent blackboard comprises at least one writing board 1 and at least one interactive board 2, wherein the writing board 1 and the interactive board 2 are respectively installed and fixed through respective outer frame frames 3;

The thicknesses of the first aluminum plate layer 1b1 and the second aluminum plate layer 1b2 are both 1.5 mm; the left side and the right side of the light guide plate 3b are respectively provided with a pressing strip 10b, one end of the pressing strip 10b is arranged on the substrate 1b, and the other end of the pressing strip 10b is in contact connection with the light homogenizing film 4b on the light guide plate 3 b; the diffusion film 7b and the brightness enhancement film 8b are stacked above the light uniformizing film 4 b.

When the large-format high-definition intelligent blackboard is adopted, the aluminum support bars and the first flanging parts of the aluminum support bars can continuously and quickly transfer the heat of the LED lamp strip to a large-area substrate, so that the heat generated by the LED lamp strip can be quickly and uniformly radiated, the influence on the performance of other devices due to unsmooth radiation of equipment using the backlight module, such as a touch blackboard, can be avoided, meanwhile, the use of other radiating modules can be reduced, the cost is saved, the thickness of the equipment can be reduced, and the user experience of products can be optimized; furthermore, the second flanging parts are arranged, so that the supporting strips have the function of limiting the light guide plate and the optical diaphragm at the same time, the positioning of the light guide plate and the optical diaphragm is realized under the condition of not increasing any cost, and the production efficiency is improved;

in addition, through the arrangement of the substrate structure and the selection of materials, the basic thickness can be reduced, the good mechanical property can be ensured, the weight of the substrate can be reduced, the weight of equipment using the backlight module is greatly reduced, the transportation and the installation are convenient, the large-width substrate can be used as a powerful heat dissipation plate, and the heat of all heat dissipation devices in front of the substrate can be rapidly dissipated after being transferred to the substrate.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a big breadth high definition intelligence blackboard which characterized in that: the writing board comprises at least one writing board (1) and at least one interactive board (2), wherein the writing board (1) and the interactive board (2) are respectively installed and fixed through respective outer frame frames (3);

the interactive plate (2) comprises a writing panel (1 a), a touch film (2 a), a liquid crystal panel (3 a) and a backlight module (4 a), wherein the touch film (2 a) is positioned between the writing panel (1 a) and the liquid crystal panel (3 a), and the backlight module (4 a) is positioned on one side, opposite to the touch film (2 a), of the liquid crystal panel (3 a);

the backlight module (4 a) further comprises a substrate (1 b), an LED lamp strip (2 b), a light guide plate (3 b), a light homogenizing film (4 b) and reflecting paper (5 b), wherein the reflecting paper (5 b) is positioned between the substrate (1 b) and the light guide plate (3 b), the light homogenizing film (4 b) is positioned on the surface of one side, back to the substrate (1 b), of the light guide plate (3 b), the LED lamp strip (2 b) is respectively arranged on the upper side and the lower side of the light guide plate (3 b) and is respectively installed on the substrate (1 b) through a supporting strip (6 b);

the LED lamp strip (2 b) comprises a plurality of LED elements (2 b 1) and a circuit board (2 b 2), the LED elements (2 b 1) are mounted on one side surface of the circuit board (2 b 2) at equal intervals, the other side surface of the circuit board (2 b 2) is connected with the supporting bar (6 b) in an adhering mode, and one side of the circuit board (2 b 2) provided with the LED elements (2 b 1) is arranged in a face-to-face mode with the side surface of the light guide plate (3 b);

the lower end of the supporting strip (6 b) is provided with a first flanging part (6 b 1) which is bent towards one side opposite to the light guide plate (3 b), the lower surface of the first flanging part (6 b 1) is in contact with the surface of the substrate (1 b), the first flanging part (6 b 1) is fixedly connected with the substrate (1 b), and the supporting strip (6 b) is an aluminum supporting strip;

the substrate (1 b) comprises a first aluminium sheet layer (1 b 1), a second aluminium sheet layer (1 b 2) and a honeycomb core layer (1 b 3) between the first aluminium sheet layer (1 b 1) and the second aluminium sheet layer (1 b 2).

2. The large format high definition intelligent blackboard of claim 1, wherein: the thicknesses of the first aluminum plate layer (1 b 1) and the second aluminum plate layer (1 b 2) are both 0.5 mm-5 mm.

3. The large format high definition intelligent blackboard of claim 1, wherein: the thickness of the core material layer (1 b 3) is 3 mm-15 mm.

4. The large format high definition intelligent blackboard of claim 1, wherein: the upper end of the supporting strip (6 b) is provided with a second flanging part (6 b 2) which is bent towards one side of the light guide plate (3 b), and the lower surface of the second flanging part (6 b 2) is in contact connection with the light homogenizing film (4 b) above the light guide plate (3 b).

5. The large format high definition intelligent blackboard of claim 1 or 4, wherein: the left side and the right side of the light guide plate (3 b) are respectively provided with a pressing strip (10 b), one end of the pressing strip (10 b) is installed on the base plate (1 b), and the other end of the pressing strip (10 b) is in contact connection with the light homogenizing film (4 b) on the light guide plate (3 b).

6. The large format high definition intelligent blackboard of claim 1, wherein: and a diffusion film (7 b) and a brightness enhancement film (8 b) are stacked above the light uniformizing film (4 b).