CN210776101U - A high-efficiency heat dissipation liquid crystal display - Google Patents

Abstract

The utility model discloses a high-efficiency heat dissipation liquid crystal display screen, which comprises a main casing, a display screen and a backlight module. The main casing comprises a middle frame, a cover plate and a back plate. The inner side of the middle frame is provided with a mounting boss, and the mounting convex Four corners of the table are provided with L-shaped positioning grooves, an L-shaped elastic positioning member is installed in the L-shaped positioning groove, and the L-shaped elastic positioning member is in contact with the four corners of the backlight module; the L-shaped elastic positioning member is also provided with a supporting part , the bottom of the display screen is in contact with the supporting part; one set of symmetrical two sides of the middle frame is provided with a number of first heat dissipation holes, the other set of symmetrical two sides of the middle frame is provided with card slots, and the back plate slides through the card There are several second heat dissipation holes in the groove and on the surface of the back plate; the cover plate is installed on the surface of the middle frame; the four corners of the middle frame, the cover plate and the back plate are respectively provided with limit holes, and a limit hole is installed in any limit hole pin. The technical scheme of the utility model improves the installation structure of the existing liquid crystal display screen, facilitates installation and disassembly, and improves the heat dissipation performance.

Description

A high-efficiency heat dissipation liquid crystal display

technical field

The utility model relates to the field of liquid crystal display screens, in particular to an efficient heat dissipation liquid crystal display screen.

Background technique

Liquid crystal display is an active matrix liquid crystal display driven by thin film transistor (TFT). With the rapid development of liquid crystal display, liquid crystal display has gradually become the mainstream of display technology due to its advantages of ultra-thin, light weight, no radiation, and stable performance. The LCD display is usually divided into a display screen and a backlight module. During the use process, the backlight module will generate a lot of heat. The existing LCD display is limited by the structure, the heat dissipation effect is not good, and the overall structural stability is poor. Not easy to assemble and disassemble.

Therefore, the prior art has shortcomings and needs to be improved.

Utility model content

The main purpose of the utility model is to propose a high-efficiency heat dissipation liquid crystal display, which aims to improve the installation structure of the existing liquid crystal display, improve the stability of its overall structure, facilitate installation and disassembly, improve its heat dissipation performance, and ensure its service life.

In order to achieve the above purpose, a high-efficiency heat dissipation liquid crystal display screen proposed by the present utility model includes a main casing, a display screen and a backlight module installed in the main casing, the main casing is arranged in a rectangular shape, and the main casing is arranged in a rectangular shape. The body includes a middle frame, a cover plate and a back plate that are spliced with each other. The inner side of the middle frame is provided with mounting bosses for installing the backlight module, and the mounting bosses are close to the four corners of the inner side of the middle frame. An L-shaped positioning groove is respectively opened, and an L-shaped elastic positioning member is installed in any of the L-shaped positioning grooves, and the L-shaped elastic positioning member is in contact with the four corners of the backlight module; the L-shaped elastic positioning member A support part for supporting the display screen is added on the surface of the positioning member, the display screen is installed on the inner side of the middle frame, and the bottom of the display screen is in contact with the support part; one of the middle frame The symmetrical two sides of the group are provided with a plurality of first heat dissipation holes, and the plurality of first heat dissipation holes are arranged along the length direction of the sides of the middle frame, and the other symmetrical two sides of the middle frame are far away from the backlight module. One side is provided with a card slot for installing the backplane, the backplane is slidably passed through the card slot, and the surface of the backplane is provided with a plurality of second heat dissipation holes arranged in an array; the The cover plate is installed on the surface of the middle frame and is in contact with the edge of the display screen; the middle frame, the cover plate and the back plate are respectively provided with mutually corresponding limit holes at four corners, and any limit hole is in the limit hole. Install a limit pin.

Preferably, the second heat dissipation holes are distributed and arranged in an annular array.

Preferably, the first heat dissipation holes and the second heat dissipation holes are provided with dust-proof nets.

Preferably, the L-shaped elastic positioning member is configured as an integral molding structure of the superior force glue.

Preferably, the middle frame, the cover plate and the back plate are respectively set as an aluminum alloy integrally formed structure.

Compared with the prior art, the beneficial effects of the present utility model are: the structure of the traditional liquid crystal display screen casing is improved, the splicing structure is adopted, the structure of the traditional locking screw is cancelled, the installation and disassembly are convenient, and the production efficiency is greatly improved, And it is convenient for later maintenance. At the same time, the casing is made of aluminum alloy material, which has fast heat conduction efficiency and can speed up the heat dissipation of the liquid crystal display. The backlight module is installed in the middle frame through four L-shaped elastic positioning pieces. When the LCD screen receives external force, the backlight module can be buffered to prevent it from being deformed and ensure the imaging effect. At the same time, by arranging the elastic positioning member, a certain space can also be formed between the backlight module, the display screen and the casing, so as to increase the contact area between the backlight module and the air, thereby speeding up the heat dissipation. Then, by setting the first heat dissipation hole and the second heat dissipation hole, the air circulation inside the liquid crystal display screen is accelerated, and the heat dissipation efficiency thereof is improved.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained based on the structures shown in these drawings without any creative effort.

1 is a schematic diagram of the overall structure of a liquid crystal display screen of the present invention;

2 is an exploded view of the overall structure of the liquid crystal display screen of the present invention;

3 is a schematic diagram of the installation structure between the middle frame and the elastic positioning member of the present invention;

The realization, functional characteristics and advantages of the purpose of the present utility model will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Detailed ways

A high-efficiency heat dissipation liquid crystal display screen proposed in this embodiment, with reference to FIGS. 1 to 3 , includes a main casing, a display screen 1 and a backlight module 2 installed in the main casing, and the main casing is arranged in a rectangular shape, The main casing includes a middle frame 3, a cover plate 4 and a back plate 5 that are spliced with each other. The inner side of the middle frame 3 is provided with a mounting boss 31 for mounting the backlight module 2. The mounting boss 31 Four corners near the inner side of the middle frame 3 are respectively provided with an L-shaped positioning groove 32, and an L-shaped elastic positioning member 6 is installed in any of the L-shaped positioning grooves 32. The four corners of the backlight module 2 are in contact; the surface of the L-shaped elastic positioning member 6 is further provided with a support portion 61 for supporting the display screen 1 , and the display screen 1 is installed in the middle frame 3 side, and the bottom of the display screen 1 is in contact with the support portion 61; a set of symmetrical two sides of the middle frame 3 are provided with a plurality of first heat dissipation holes 33, and a plurality of the first heat dissipation holes 33 are along the The sides of the middle frame 3 are arranged in the length direction, and another set of symmetrical two sides of the middle frame 3 is provided with a slot 34 for installing the back plate 5 on the side away from the backlight module 2 . 5 is slidably penetrated in the card slot 34, and a plurality of second heat dissipation holes 51 arranged in an array are formed on the surface of the back plate 5; the cover plate 4 is installed on the surface of the middle frame 3 and is connected with the The edges of the display screen 1 are in contact with each other; the four corners of the middle frame 3 , the cover plate 4 and the back plate 5 are respectively provided with mutually corresponding limit holes 7 , and a limit pin 8 is installed in any of the limit holes 7 .

It should be noted that this embodiment improves the structure of the traditional liquid crystal display housing, adopts the splicing structure, and cancels the structure of the traditional locking screw, which facilitates installation and disassembly, greatly improves production efficiency, and facilitates later maintenance. At the same time, the casing is made of aluminum alloy material, which has fast heat conduction efficiency and can speed up the heat dissipation of the liquid crystal display. The backlight module 2 is installed in the middle frame 3 through four L-shaped elastic positioning members 6. When the liquid crystal display screen is subjected to external force, the backlight module 2 can be buffered to prevent deformation and ensure the imaging effect. At the same time, by arranging the elastic positioning member, a certain space can also be formed between the backlight module 2, the display screen 1 and the casing, so as to increase the contact area between the backlight module 2 and the air, thereby accelerating its heat dissipation. Then, by setting the first heat dissipation holes 33 and the second heat dissipation holes 51, the air circulation inside the liquid crystal display screen is accelerated, and the heat dissipation efficiency thereof is improved.

Specifically, during installation, the backlight module 2 is placed on the mounting boss 31 on the inner side of the middle frame 3, and then the L-shaped elastic positioning members 6 are inserted into the L-shaped positioning grooves 32 in sequence, so as to ensure any L-shaped elastic positioning The element 6 is in contact with the four corners of the backlight module 2, and the bottom surface of the support portion 61 of the L-shaped elastic positioning element 6 is also in contact with the surface of the backlight module 2, thereby confining the backlight module 2 within the middle frame 3. Ensure its installation stability. Then, the display screen 1 is installed in the middle frame 3 (that is, the display screen 1 is covered on the surface of the backlight module 2 ). A certain gap is left between the display screen 1 and the backlight module 2 to ensure the contact between the backlight module 2 and the air and to speed up heat dissipation. At the same time, the thickness of the support portion 61 can be adjusted according to the actual imaging requirements, so as to adjust the distance between the display screen 1 and the backlight module 2, and adjust the effect to achieve the optimal imaging effect.

After the display screen 1 is installed, insert the back plate 5 into the slot 34 of the middle frame 3, leaving a gap between the back plate 5 and the backlight module 2, and then cover the cover plate 4 on the surface of the middle frame 3, and the cover plate 4 is in contact with the edge of the display screen 1 to limit the movement of the display screen 1. At this time, the limit holes 7 at the four corners of the middle frame 3, the cover plate 4 and the back plate 5 correspond in sequence, and the limit pins 8 are inserted into the limit holes in sequence. In the position hole 7, the middle frame 3, the cover plate 4 and the back plate 5 can be fixed together to complete the overall installation of the liquid crystal display screen. During disassembly, only by knocking out the limiting pin 8 with an external tool, the fixing between the middle frame 3, the cover plate 4 and the back plate 5 can be released, so that the internal components can be taken out in sequence, and the operation is convenient.

Further, the first heat dissipation holes 33 are arranged on a set of symmetrical sides of the middle frame 3, which can form air convection, further accelerate the air circulation inside the liquid crystal display screen, thereby speeding up heat dissipation, and at the same time, through the second heat dissipation holes 51 The bottom of the backlight module 2 dissipates heat, double heat dissipation, and the effect is better.

Further, the second heat dissipation holes 51 are arranged in an annular array, so as to increase the heat dissipation area and speed up the heat dissipation.

Further, the first heat dissipation hole 33 and the second heat dissipation hole 51 are provided with a dust filter (not shown in the figure), which can effectively prevent external dust from entering the liquid crystal display from the first heat dissipation hole 33 and the second heat dissipation hole 51. inside the screen, affecting its normal use.

Further, the L-shaped elastic positioning 6 pieces are arranged as an integral molding structure of the superior force glue. Superior glue is a kind of good strength, small compression deformation. A new type of material between plastic and rubber, which has the rigidity of plastic and the elasticity of rubber. The backlight module 2 can be effectively buffered, and at the same time, the service life of the backlight module 2 can be long, and the use cost can be saved.

Further, the middle frame 3 , the cover plate 4 and the back plate 5 are respectively set as an aluminum alloy integrally formed structure. The aluminum alloy material is light in weight and has good thermal conductivity, which can further accelerate heat dissipation and reduce the overall quality of the liquid crystal display.

The above are only the preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model patent. Any equivalent structure or equivalent process transformation made by using the contents of the present utility model description and accompanying drawings, or directly or indirectly applied to other related The technical field of the present invention is similarly included in the scope of patent protection of the present invention.

Claims (5)

1. A high-efficiency heat-dissipation liquid crystal display screen comprises a main shell, a display screen and a backlight module, wherein the display screen and the backlight module are arranged in the main shell; the surface of the L-shaped elastic positioning piece is additionally provided with a supporting part for supporting the display screen, the display screen is arranged on the inner side surface of the middle frame, and the bottom of the display screen is abutted to the supporting part; the backlight module comprises a middle frame, a plurality of first radiating holes, a plurality of clamping grooves and a plurality of second radiating holes, wherein the two symmetrical sides of one group of the middle frame are provided with the first radiating holes, the first radiating holes are distributed along the length direction of the sides of the middle frame, one side, away from the backlight module, of the other group of the two symmetrical sides of the middle frame is provided with the clamping grooves for mounting a back plate, the back plate is slidably arranged in the clamping grooves in a penetrating mode, and the surface of the back plate is provided with the; the cover plate is arranged on the surface of the middle frame and is abutted against the edge of the display screen; the middle frame, the cover plate and the back plate are respectively provided with four corners which are provided with limiting holes corresponding to each other, and a limiting pin is arranged in any limiting hole.

2. The high efficiency heat dissipating liquid crystal display panel of claim 1, wherein the second heat dissipating holes are distributed in an annular array.

3. The high efficiency heat dissipating liquid crystal display panel of claim 2, wherein dust screens are disposed in the first heat dissipating holes and the second heat dissipating holes.

4. A high efficiency heat dissipating liquid crystal display as recited in claim 1, wherein the L-shaped elastic positioning member is formed as an integral molding of acrylic rubber.

5. A high efficiency heat dissipating liquid crystal display as recited in claim 1, wherein the center frame, the cover plate and the back plate are each formed of an aluminum alloy.

Images