CN218938727U

CN218938727U - Backlight module with reinforced structure and smart blackboard

Info

Publication number: CN218938727U
Application number: CN202222459604.5U
Authority: CN
Inventors: 赵定平; 路成照
Original assignee: Jiangsu Woda Audiovisual Technology Co ltd
Current assignee: Jiangsu Woda Audiovisual Technology Co ltd
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2023-04-28
Anticipated expiration: 2032-09-16

Abstract

The utility model discloses a backlight module with a reinforced structure and a smart blackboard, which comprises a metal bottom plate and a fixed frame, wherein the fixed frame is arranged on a frame structure of the metal bottom plate, and the metal bottom plate and the fixed frame are mutually matched and fixedly connected; the light source component is positioned in the frame inner space surrounded by the fixed frame; the backlight module further comprises a reinforcing structure, the reinforcing structure is arranged on one side, far away from the light source assembly, of the metal bottom plate and connected to the fixed frame, the reinforcing structure comprises a first strip-shaped transverse plate and a second strip-shaped longitudinal plate, the first strip-shaped transverse plate and the second strip-shaped longitudinal plate are staggered and distributed on the inner side of the fixed frame in a crossing mode, and the light source assembly is fixed on the reinforcing structure. The utility model has the advantages of reinforcing the supporting strength of the backlight assembly, reasonable structure of the reinforcing structure, easy processing and convenient disassembly.

Description

Backlight module with reinforced structure 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

In recent years, with the advancement of informatization of education, smart blackboards are increasingly popularized and used in education institutions such as schools. The intelligent blackboard has the writing function and the information display function, and the display function of the intelligent blackboard is realized through a liquid crystal display device. Liquid crystal display devices have been rapidly developed, however, liquid crystals themselves cannot emit light, and the display of graphics or characters is a result of the light modulation of the backlight module. At present, according to the distribution position of the light source, the backlight module can be divided into two types of side light type and direct type: the side light type backlight module structure is that a light source is positioned at one side of the module, and light enters liquid crystal glass through an optical film material after being conducted by a light guide plate; the direct type backlight module structure is characterized in that a light source is positioned below the module, and light enters liquid crystal glass through an optical film after being diffused by a diffusion plate. The direct type backlight module has wider application because of high brightness, low cost scheme and easy local control of light.

At present, when a manufacturer processes and manufactures a smart blackboard, two fixing methods of a main board of a smart blackboard display device and a back board of a direct type backlight module are adopted, and one method is as follows: screw holes are formed in the surface of the backboard of the direct type backlight module, and components such as a main board of the intelligent blackboard are fixed on the backboard through screws.

The backlight module is used as an important component of the intelligent blackboard for displaying the intelligent blackboard. However, in order to complete the installation of various optical films, liquid crystal panels, and the like, the conventional backlight module needs to be provided with a fixing frame and a frame, which are complex in shape, such as a groove, a mounting surface, and the like, and various pressing members need to be provided for pressing or clamping the components, so that the backlight module is complex in structure, difficult to process, and weak in supporting strength.

Disclosure of Invention

The utility model aims to solve the technical problems of providing a backlight module with a reinforced structure and a smart blackboard, wherein the reinforced structure has reasonable structure, high supporting strength and easy processing.

In order to solve the technical problems, the utility model provides a backlight module with a reinforced structure, which comprises a metal bottom plate and a fixed frame, wherein the fixed frame is arranged on a frame structure of the metal bottom plate, and the metal bottom plate and the fixed frame are mutually matched and fixedly connected; the light source component is positioned in the frame inner space surrounded by the fixed frame; the backlight module further comprises a reinforcing structure, the reinforcing structure is arranged on one side, far away from the light source assembly, of the metal bottom plate and connected to the fixed frame, the reinforcing structure comprises a first strip-shaped transverse plate and a second strip-shaped longitudinal plate, the first strip-shaped transverse plate and the second strip-shaped longitudinal plate are staggered and distributed on the inner side of the fixed frame in a crossing mode, and the light source assembly is fixed on the reinforcing structure.

Further, the first strip-shaped transverse plate and the second strip-shaped longitudinal plate are made of metal aluminum, and the metal bottom plate is an aluminum bottom plate.

Further, the light source component is a plurality of light bars.

Further, each lamp strip is connected to the first strip-shaped transverse plate and the second strip-shaped longitudinal plate through threaded holes, and threaded mounting holes are formed in the first strip-shaped transverse plate and the second strip-shaped longitudinal plate.

Further, the first strip-shaped transverse plate and the second strip-shaped longitudinal plate are connected by clamping or threads.

Further, the backlight assembly is arranged on one side of the light source assembly away from the metal bottom plate.

The utility model discloses another intelligent blackboard which comprises the backlight module with the reinforced structure.

Further, the smart blackboard further comprises a playing device arranged at the top of the display screen, and the playing device comprises a loudspeaker and a sound box which is accommodated in the internal cavity.

Further, the playing devices are arranged in pairs and are separated on two sides of the middle position of the display screen.

Further, the sound box is of an elongated structure, the middle part of the sound box is provided with square bulges, and the bulges retract gradually towards the two sides in an arc shape.

The utility model has the technical effects that: the utility model has the advantages of reinforcing the supporting strength of the backlight assembly, reasonable structure of the reinforcing structure, easy processing and convenient disassembly. In addition, the reinforced structure is made of metal aluminum, the heat dissipation coefficient of the metal aluminum is large, the heat dissipation performance of the lamp strip is improved, the temperature of the whole heat dissipation module is reduced, the service life of the intelligent blackboard is prolonged, and the intelligent blackboard is energy-saving and environment-friendly.

According to the utility model, the playing device is arranged above the intelligent blackboard, so that chalk dust and dust can be prevented from entering the sound box body, and the dust can be cleaned very easily once entering the horn hole of the playing device.

Drawings

FIG. 1 is a schematic diagram of a backlight module with a reinforcing structure according to the present utility model;

FIG. 2 is a schematic view of the structure of a first bar-shaped cross plate of the present utility model;

FIG. 3 is a schematic view of the structure of a first strip-shaped longitudinal plate according to the present utility model;

FIG. 4 is a schematic diagram of a display screen top player of the intelligent blackboard of the present utility model;

fig. 5 is a schematic view of the structure of the display screen of the present utility model with the sound box mounted thereon.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to limit the utility model, so that those skilled in the art may better understand the utility model and practice it.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements 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 utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1, a backlight module 1 with a reinforced structure according to the present utility model includes a metal chassis 17, a fixed frame 11, and a frame structure disposed on the metal chassis 11, wherein the metal chassis 11 and the fixed frame 11 are adapted to be fixedly connected with each other; a light source assembly 13 located in an inner space of the frame surrounded by the fixed frame 11; the backlight module 1 further comprises a reinforcing structure, the reinforcing structure is arranged on one side of the metal bottom plate 17 away from the light source component 13 and is connected to the fixed frame 17, the reinforcing structure comprises a first bar-shaped transverse plate 12 and a second bar-shaped longitudinal plate 13, the first bar-shaped transverse plate 12 and the second bar-shaped longitudinal plate 13 are staggered and distributed on the inner side of the fixed frame 11 in a crossing manner, and the light source component 13 is fixed on the reinforcing structure.

As shown in fig. 2-3, the first strip-shaped transverse plates 12 and the second strip-shaped longitudinal plates 13 are made of metal aluminum, and the metal bottom plates 17 are aluminum bottom plates. The light source component 13 is a plurality of light bars, and each light bar is connected to threaded mounting holes formed in the first strip-shaped transverse plate 12 and the second strip-shaped longitudinal plate 13 through threaded holes. The first strip-shaped transverse plate 12 and the second strip-shaped longitudinal plate 13 are connected by clamping or threads. In addition, a backlight assembly is provided at a side of the light source assembly 13 remote from the metal chassis 17.

In summary, the present utility model has the reinforcement structure to strengthen the strength of the backlight assembly 1, and the reinforcement structure has the advantages of reasonable structure, easy processing and convenient assembly and disassembly. In addition, the reinforced structure is made of metal aluminum, the heat dissipation coefficient of the metal aluminum is large, the heat dissipation performance of the lamp strip is improved, the temperature of the whole heat dissipation module is reduced, the service life of the intelligent blackboard is prolonged, and the intelligent blackboard is energy-saving and environment-friendly.

The smart blackboard as shown in fig. 4-5 includes the backlight module 1 with the reinforced structure shown in fig. 1, and further includes a playing device 16 disposed on top of the display screen, where the playing device includes a speaker and a speaker box for accommodating the speaker in the internal cavity. The playing devices are arranged in pairs and are respectively arranged at two sides of the middle position of the display screen 15. The sound box is of an elongated structure, the middle part of the sound box presents square bulges 161, and the bulges 161 retract towards the two sides gradually in an arc shape. According to the utility model, the playing device 16 is arranged above the intelligent blackboard, so that chalk dust and dust can be prevented from entering the sound box body, and once the dust enters the horn hole of the playing device 16, the dust can be cleaned very easily.

The above-described embodiments are merely preferred embodiments for fully explaining the present utility model, and the scope of the present utility model is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present utility model, and are intended to be within the scope of the present utility model. The protection scope of the utility model is subject to the claims.

Claims

1. A backlight module with a reinforced structure comprises a metal bottom plate and a fixed frame, wherein the fixed frame is arranged on a frame structure of the metal bottom plate, and the metal bottom plate and the fixed frame are mutually matched and fixedly connected; the light source component is positioned in the frame inner space surrounded by the fixed frame; the backlight module is characterized by further comprising a reinforcing structure, wherein the reinforcing structure is arranged on one side, far away from the light source assembly, of the metal bottom plate and is connected to the fixed frame, the reinforcing structure comprises a first strip-shaped transverse plate and a second strip-shaped longitudinal plate, the first strip-shaped transverse plate and the second strip-shaped longitudinal plate are staggered and distributed on the inner side of the fixed frame in a crossing manner, and the light source assembly is fixed on the reinforcing structure.

2. The backlight module with the reinforced structure of claim 1, wherein the first bar-shaped transverse plate and the second bar-shaped longitudinal plate are made of metal aluminum, and the metal bottom plate is an aluminum bottom plate.

3. The backlight module with enhanced structure according to claim 1, wherein the light source assembly is a plurality of light bars.

4. A backlight module with a reinforced structure according to claim 3, wherein each of the light bars is connected to the first and second bar-shaped transverse plates through screw holes, and screw mounting holes are formed in the first and second bar-shaped longitudinal plates.

5. The backlight module with the reinforced structure of claim 1, wherein the first bar-shaped transverse plate and the second bar-shaped longitudinal plate are connected by clamping or threads.

6. The backlight module with reinforcement structure according to claim 1, further comprising a backlight assembly disposed at a side of the light source assembly away from the metal chassis.

7. A smart blackboard comprising the backlight module with a reinforcing structure according to any one of claims 1 to 6.

8. The intelligent blackboard according to claim 7, further comprising a playing device disposed on top of the display screen, the playing device including a speaker and a speaker box for housing the speaker in the internal cavity.

9. The intelligent blackboard according to claim 8, wherein the playing devices are arranged in pairs and are separated on two sides of the middle position of the display screen.

10. The intelligent blackboard according to claim 8, wherein the sound box is of a slender structure, the middle part of the sound box presents square protrusions, and the protrusions retract gradually towards two sides in an arc shape.