CN213458476U - Electronic blackboard for interactive teaching - Google Patents
Electronic blackboard for interactive teaching Download PDFInfo
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- CN213458476U CN213458476U CN202020313382.4U CN202020313382U CN213458476U CN 213458476 U CN213458476 U CN 213458476U CN 202020313382 U CN202020313382 U CN 202020313382U CN 213458476 U CN213458476 U CN 213458476U
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Abstract
The utility model discloses an electronic blackboard for interactive teaching, including an at least clipboard and an at least mutual movable plate, clipboard and interactive board are fixed through respective frame mount respectively, interactive board is including writing panel, touch-control membrane, liquid crystal display panel and backlight unit, the touch-control membrane is located between writing panel and the liquid crystal display panel and pastes and apply on writing panel's a surface, backlight unit sets up in one side that liquid crystal display panel carried on the back in the touch-control membrane, still be provided with a transparent dielectric plate between touch-control membrane and the liquid crystal display panel, backlight unit further includes base plate, LED lamp area, light guide plate, light homogenizing membrane and reflection paper, reflection paper is located between base plate and the light guide plate, the light homogenizing membrane is located a side surface that the light guide plate carried on the back in the base plate. The utility model discloses interactive for teaching electronic blackboard has simplified the flow of production, the processing of being convenient for, very big improvement production efficiency, saving manufacturing cost.
Description
Technical Field
The utility model relates to an electronic blackboard for interactive teaching belongs to education and equips technical field.
Background
Teaching lessons in the form of chalk used in conjunction with a blackboard has long been a very important position in the field of education. The teaching aid has the advantage of low teaching cost, and the teacher can draw the lecture of the sound and drawing colors and the image graphic representation or explanation on the blackboard, so that the attention of students can be greatly improved, and the learning efficiency is improved.
However, with the development of science and technology and the deeper understanding of some diseases, the disadvantages of the traditional chalk teaching are also gradually paid more attention. In the campus nowadays, multimedia classrooms and electronic blackboards are common, wherein the multimedia classrooms generally comprise a multimedia computer, a liquid crystal projector, a projection screen, an audio device and the like. During actual teaching, a multimedia computer is used for displaying pre-prepared teaching materials through projection of a projector, and meanwhile, the cooperation of sound and man-machine interaction operation between a user and the computer are added according to needs to complete the teaching or training process. The multimedia teaching devices of the prior art also have some drawbacks, such as: the multimedia equipment is more, and a projector, a projection screen and the like need to be independently equipped; the projection screen is generally white and can not be used in an environment with bright light; the function is single, and the expansibility is avoided. The existing electronic blackboard is usually integrated with the display screen as a whole into the 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 an electronic blackboard for interactive teaching, this electronic blackboard for interactive teaching has simplified the flow of production, is convenient for process, very big improvement production efficiency, saving manufacturing cost.
In order to achieve the above purpose, the utility model adopts the technical scheme that: an electronic blackboard for interactive teaching 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 is pasted on one surface of the writing panel;
the periphery outer sides of the medium plate and the liquid crystal panel are respectively provided with a plurality of fixed blocks, the fixed blocks are fixed at the periphery edges of the writing panel or the touch control film, the periphery outer sides of the medium plate and the liquid crystal panel are respectively provided with a cover plate connected with the fixed blocks, one side of the cover plate is connected with the fixed blocks, and the other side of the cover plate is connected with the periphery edges of the medium plate and the liquid crystal panel in a pressing way;
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 of 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 further improved scheme in the technical scheme is as follows:
1. in the scheme, the diffusion film and the brightness enhancement film are stacked above the light-homogenizing film.
2. In the above solution, an elastic cushion layer is arranged between the lower surface of the cover plate and the upper surface of the liquid crystal panel.
3. In the above scheme, the four cover plates are respectively connected with the fixing block through a screw.
4. 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.
5. 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.
6. In the scheme, the cross section of the pressing strip is a Z-shaped cross section.
7. In the above scheme, the touch film is connected with the writing panel in an adhesive manner.
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 electronic blackboard for interactive teaching, the lower extreme of its support bar has the first turn-ups portion of bending back to one side of light guide plate earlier on, the lower surface of this first turn-ups portion and the surface contact of base plate and this first turn-ups portion and base plate fixed connection, the support bar is the aluminium support bar, through the setting of aluminium support bar and its first turn-ups portion, can be with the heat of LED lamp area lasting, quick transfer to large tracts of land base plate, realized producing the quick, even heat dissipation of heat to LED lamp area, avoid using the equipment of backlight unit of this invention, such as the touch-control blackboard influences other device performances because the heat dissipation is not smooth, can also reduce the use of other heat dissipation modules simultaneously, both practice thrift the cost, can thin the thickness of equipment again, optimize the user experience of product; furthermore, the upper end of the supporting bar is provided with a second flanging part bent towards one side of the light guide plate, the lower surface of the second flanging part is in contact connection with the light equalizing film above the light guide plate, and the supporting bar is enabled to have the effect of limiting the light guide plate and the optical diaphragm at the same time through the arrangement of the second flanging part, so that 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.
2. The utility model discloses electronic blackboard for interactive teaching, it peels off liquid crystal display panel from traditional LCD to assemble into independent module through the apron with writing panel, touch-control membrane, cooperates backlight unit, just can realize touch-control and display operation, has simplified the flow of production, the processing of being convenient for, very big improvement production efficiency, saving manufacturing cost; meanwhile, a plurality of fixed blocks are respectively arranged on the outer sides of the peripheries of the dielectric plate and the liquid crystal panel, the fixed blocks are fixed at the peripheral edges of the writing panel or the touch control film, cover plates connected with the fixed blocks are respectively arranged on the outer sides of the peripheries of the dielectric plate and the liquid crystal panel, one side of each cover plate is connected with the fixed block, and the other side of each cover plate is connected with the peripheral edges of the dielectric plate and the liquid crystal panel in a pressing mode, so that the deformation of the dielectric plate and the liquid crystal panel under the influence of environmental factors can be reduced, the display definition and the touch control precision are improved; furthermore, the liquid crystal panel is convenient to maintain and replace, the replacement of the liquid crystal panel cannot generate adverse effects on other components such as the touch control film, and the cost of maintenance is reduced.
Drawings
FIG. 1 is a schematic structural view of an electronic blackboard for interactive teaching according to the present invention;
FIG. 2 is a schematic structural view of a backlight module in an electronic blackboard for interactive teaching according to the present invention;
FIG. 3 is a side view of the backlight module in the electronic blackboard for interactive teaching of the present invention;
FIG. 4 is a side view of the backlight module in the electronic blackboard for interactive teaching of the present invention;
FIG. 5 is a side view showing a partial structure of the electronic blackboard for interactive teaching of the present invention.
In the above drawings: 1. a writing board; 2. an interactive plate; 3. an outer frame; 1a, a writing panel; 2a, a touch control film; 3a, a dielectric plate; 4a, a liquid crystal panel; 5a, fixing blocks; 6a, a cover plate; 7a, a screw; 10a, 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: an electronic blackboard for interactive teaching 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 4a and a backlight module 10a, wherein the touch film 2a is positioned between the writing panel 1a and the liquid crystal panel 4a and is pasted on one surface of the writing panel 1a, the backlight module 10a is arranged on one side, opposite to the touch film 2a, of the liquid crystal panel 4a, and a transparent dielectric plate 3a is also arranged between the touch film 2a and the liquid crystal panel 4 a;
a plurality of fixing blocks 5a are respectively arranged on the outer sides of the peripheries of the dielectric plate 3a and the liquid crystal panel 4a, the fixing blocks 5a are fixed at the edges of the peripheries of the writing panel 1a or the touch control film 2a, cover plates 6a connected with the fixing blocks 5a are respectively arranged on the outer sides of the peripheries of the dielectric plate 3a and the liquid crystal panel 4a, one side of each cover plate 6a is connected with the corresponding fixing block 5a, and the other side of each cover plate 6a is connected with the edges of the peripheries of the dielectric plate 3a and the liquid crystal panel 4a in a pressing;
the backlight module 10a further comprises a substrate 1b, an LED strip 2b, a light guide plate 3b, a light-equalizing film 4b and a piece of reflective paper 5b, wherein the reflective paper 5b is located between the substrate 1b and the light guide plate 3b, the light-equalizing film 4b is located on a side surface of the light guide plate 3b opposite to the substrate 1b, and the LED strip 2b is respectively arranged on the upper side and the lower side of the light guide plate 3b and is respectively mounted 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 the opposite side of 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.
A diffusion film 7b and a brightness enhancement film 8b are stacked above the light uniformizing film 4 b; an elastic cushion layer is arranged between the lower surface of the cover plate 6a and the upper surface of the liquid crystal panel 4 a; the four cover plates 6a are respectively connected with the fixed block 5a through screws 7 a; the touch film 2a is bonded to the writing panel 1 a.
Example 2: an electronic blackboard for interactive teaching 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 4a and a backlight module 10a, wherein the touch film 2a is positioned between the writing panel 1a and the liquid crystal panel 4a and is pasted on one surface of the writing panel 1a, the backlight module 10a is arranged on one side, opposite to the touch film 2a, of the liquid crystal panel 4a, and a transparent dielectric plate 3a is also arranged between the touch film 2a and the liquid crystal panel 4 a;
a plurality of fixing blocks 5a are respectively arranged on the outer sides of the peripheries of the dielectric plate 3a and the liquid crystal panel 4a, the fixing blocks 5a are fixed at the edges of the peripheries of the writing panel 1a or the touch control film 2a, cover plates 6a connected with the fixing blocks 5a are respectively arranged on the outer sides of the peripheries of the dielectric plate 3a and the liquid crystal panel 4a, one side of each cover plate 6a is connected with the corresponding fixing block 5a, and the other side of each cover plate 6a is connected with the edges of the peripheries of the dielectric plate 3a and the liquid crystal panel 4a in a pressing;
the backlight module 10a further comprises a substrate 1b, an LED strip 2b, a light guide plate 3b, a light-equalizing film 4b and a piece of reflective paper 5b, wherein the reflective paper 5b is located between the substrate 1b and the light guide plate 3b, the light-equalizing film 4b is located on a side surface of the light guide plate 3b opposite to the substrate 1b, and the LED strip 2b is respectively arranged on the upper side and the lower side of the light guide plate 3b and is respectively mounted 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 the opposite side of 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 upper end of the supporting strip 6b is provided with a second flanging part 6b2 bent towards one side of 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; 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 cross section of the bead 10b is a zigzag cross section.
When the electronic blackboard for interactive teaching is adopted, the aluminum support bars and the first flanging parts thereof are arranged, so that the heat of the LED lamp strip can be continuously and quickly transferred onto a large-area substrate, 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, the liquid crystal panel is stripped from the traditional liquid crystal display, and is assembled into an independent module together with the writing panel and the touch film through the cover plate, and the touch and display operation can be realized by matching with the backlight module, so that the production flow is simplified, the processing is convenient, the production efficiency is greatly improved, and the production cost is saved; meanwhile, the deformation of the dielectric plate and the liquid crystal panel under the influence of environmental factors can be reduced, so that the display definition and the touch precision are improved, and the user experience is good; furthermore, the liquid crystal panel is convenient to maintain and replace, the replacement of the liquid crystal panel cannot generate adverse effects on other components such as the touch control film, and the cost of maintenance is reduced.
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 (8)
1. The utility model provides an electronic blackboard for interactive teaching 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 (4 a) and a backlight module (10 a), wherein the touch film (2 a) is positioned between the writing panel (1 a) and the liquid crystal panel (4 a) and is pasted on one surface of the writing panel (1 a), the backlight module (10 a) is arranged on one side, opposite to the touch film (2 a), of the liquid crystal panel (4 a), and a transparent dielectric plate (3 a) is further arranged between the touch film (2 a) and the liquid crystal panel (4 a);
the periphery outer sides of the dielectric plate (3 a) and the liquid crystal panel (4 a) are respectively provided with a plurality of fixing blocks (5 a), the fixing blocks (5 a) are fixed at the periphery edges of the writing panel (1 a) or the touch control film (2 a), the periphery outer sides of the dielectric plate (3 a) and the liquid crystal panel (4 a) are respectively provided with a cover plate (6 a) connected with the fixing blocks (5 a), one side of the cover plate (6 a) is connected with the fixing blocks (5 a), and the other side of the cover plate is connected with the periphery edges of the dielectric plate (3 a) and the liquid crystal panel (4 a) in a pressing mode;
the backlight module (10 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 back to 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.
2. The electronic blackboard for interactive teaching according to claim 1, characterized in that: and a diffusion film (7 b) and a brightness enhancement film (8 b) are stacked above the light uniformizing film (4 b).
3. The electronic blackboard for interactive teaching according to claim 1, characterized in that: an elastic cushion layer is arranged between the lower surface of the cover plate (6 a) and the upper surface of the liquid crystal panel (4 a).
4. The electronic blackboard for interactive teaching according to claim 1, characterized in that: the four cover plates (6 a) are respectively connected with the fixed block (5 a) through screws (7 a).
5. The electronic blackboard for interactive teaching according to claim 1, characterized in that: 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).
6. The electronic blackboard for interactive teaching according to claim 1 or 5, characterized in that: 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).
7. The electronic blackboard for interactive teaching according to claim 6, characterized in that: the cross section of the pressing strip (10 b) is a Z-shaped cross section.
8. The electronic blackboard for interactive teaching according to claim 1, characterized in that: the touch control film (2 a) is connected with the writing panel (1 a) in an adhesive mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020313382.4U CN213458476U (en) | 2020-03-13 | 2020-03-13 | Electronic blackboard for interactive teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020313382.4U CN213458476U (en) | 2020-03-13 | 2020-03-13 | Electronic blackboard for interactive teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213458476U true CN213458476U (en) | 2021-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020313382.4U Active CN213458476U (en) | 2020-03-13 | 2020-03-13 | Electronic blackboard for interactive teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213458476U (en) |
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2020
- 2020-03-13 CN CN202020313382.4U patent/CN213458476U/en active Active
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